EP0164302A2 - Système transporteur à véhicules transporteurs à mouvement commandé - Google Patents

Système transporteur à véhicules transporteurs à mouvement commandé Download PDF

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Publication number
EP0164302A2
EP0164302A2 EP85730076A EP85730076A EP0164302A2 EP 0164302 A2 EP0164302 A2 EP 0164302A2 EP 85730076 A EP85730076 A EP 85730076A EP 85730076 A EP85730076 A EP 85730076A EP 0164302 A2 EP0164302 A2 EP 0164302A2
Authority
EP
European Patent Office
Prior art keywords
trolley
control unit
switch
station
conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85730076A
Other languages
German (de)
English (en)
Other versions
EP0164302A3 (en
EP0164302B1 (fr
Inventor
Tommy N. Tyler
John W. Harvey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Translogic Corp
Original Assignee
Translogic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Translogic Corp filed Critical Translogic Corp
Priority to AT85730076T priority Critical patent/ATE76371T1/de
Publication of EP0164302A2 publication Critical patent/EP0164302A2/fr
Publication of EP0164302A3 publication Critical patent/EP0164302A3/de
Application granted granted Critical
Publication of EP0164302B1 publication Critical patent/EP0164302B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/002—Control or safety means for heart-points and crossings of aerial railways, funicular rack-railway
    • B61L23/005—Automatic control or safety means for points for operator-less railway, e.g. transportation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/10—Operations, e.g. scheduling or time tables
    • B61L27/12—Preparing schedules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/10—Operations, e.g. scheduling or time tables
    • B61L27/14—Following schedules

Definitions

  • the invention relates to a method for controlling the movement of track-bound trolleys in a conveyor system from transmitting stations along conveyor tracks via switch devices to receiving stations.
  • Conveyor systems are used for this in a known manner, in which the transport takes place in track-bound trolleys.
  • the trolleys have conveying containers for receiving the material to be conveyed, which is conveyed with the aid of the trolleys from a station (transmitting station) arranged next to a section of the conveying track to another station (receiving station) located next to another section of the conveying track.
  • Conveyor systems are known in which the movement of trolleys along a main conveyor track is controlled, from which secondary conveyor tracks branch off to individual stations.
  • Each of the trolleys is assigned a destination address, which is queried when the respective trolley moves along the main conveyor track at the branch points of the individual sub-conveyor tracks from the main conveyor track, in order to determine whether the trolley has reached the addressed destination station.
  • a computer-controlled conveyor system in which a central main processor is connected to each of a number of trolleys with conveyor containers.
  • the trolleys in turn each contain a microprocessor which is in a data exchange with the main processor and which enables the storage of a destination address assigned to the assigned trolley;
  • the well-known conveyor system makes it possible to control the transport of the conveyed goods to their destination address.
  • the invention has for its object to provide a method that enables reliable control of the movements of a plurality of trolleys in a conveyor system.
  • the solution to this problem is that when a trolley is sent from a transmitting station to a receiving station, a destination address assigned to the receiving station, together with an identification number assigned to the trolley, is transmitted from a transmitting / receiving control unit assigned to the transmitting station to a central control unit, so that a The respective trolley is identified along a conveyor track traveling in a conveyor track into an area of a switch device by receiving an identification signal sent by it and corresponding to its identification number in a switch control unit that controls the respective switch device and is connected to the central control unit and that the switch device is dependent on the assigned switch control unit from the identification number corresponding to the received identification signal and the assigned destination address for forwarding the Fö entering the switch device rderwagens is controlled towards the receiving station.
  • Another object is to specify a conveyor system suitable for carrying out the method, which is characterized by a relatively low expenditure on tax resources.
  • each transmitting station is assigned a transmitting / receiving control unit assigned to it for transmission to the receiving station for a trolley to be sent Destination address is connected to a central control unit, that each turnout device is assigned a turnout control unit that controls it, that each trolley contains an identification signal transmitter for emitting an identification signal, that in the area of each turnout device receiving elements for receiving the identification signal of a trolley located in the respective area are arranged that the receiving elements are connected to the respective switch control unit and that each switch control unit is used to control the movement of the trolleys at the central control unit is closed.
  • FIG. 1 shows the functional diagram of the conveyor system according to the invention, in which material to be conveyed is transported in trolleys 10 via conveyor tracks 12 between transmitting and receiving stations.
  • Each of the trolleys 10 has its own identification signal transmitter, which emits an identification signal that differs from those of the other carriages 10.
  • the conveyor tracks 12 comprise a main conveyor track 14, which forms a main section or a loop, along which the trolleys 10 are moved to secondary conveyor tracks 16 which branch off from the main conveyor track 15.
  • Both the main conveyor track 14 and the secondary conveyor tracks 16 each contain detector rails 18 and power supply rails 20.
  • Each individual trolley 10 contains a motor, to which a supply voltage for driving the trolley 10 along the conveyor tracks 12 is supplied via the power supply rails 20.
  • the detector rails 18 serve to detect the identification signal emitted by the respective identifier of the trolley 10 or to detect the presence of a trolley 10 on the respective conveyor track 12.
  • the detector rails 18 can be arranged at predetermined locations along the conveyor tracks 12, so that with their help an approximate determination of the position of the trolleys 10 on the conveyor tracks 12 is possible.
  • the conveyor system according to the invention also contains a number of switch devices 22 which are arranged at predetermined locations along the conveyor tracks 12.
  • the switch devices 22 generally represent switching devices for the trolleys 10 between the main conveyor track 14 and the secondary conveyor tracks 16. However, the switch devices 22 can also be used to change the direction of the movement of the trolleys 10 along the main conveyor track 14.
  • Each switch device 22 contains control rails 24 and a movable track section 26.
  • control rails 24 of the switch devices 22, like the detector rails 18, contain rail sections for detecting the identification signals of the individual trolleys 10 and rail sections for detecting the presence of the trolleys 10.
  • control rails 24 include further rail sections for stopping the trolleys 10.
  • the movable track section 26 is slidably mounted between two positions relative to the main conveyor track 14 and the secondary conveyor tracks 16. In the first position, the movable track section 26 is aligned with the main conveyor track 14 between two connection points of the respective switch device 22. In the second position, the movable track section 26 is aligned with the secondary conveyor tracks 16 between two other connection points of the switch device 22.
  • the connection points of the individual switch devices 22 are each assigned numbers 0 -3 such that the movable track section 26 is in a straight position, if it is aligned with the connection points 0 and 2 and is in the second (odd) position, if it is in line with the connection points 1 and 3.
  • the conveyor system according to the invention contains a number of transmitting / receiving control units 28, which are assigned to corresponding transmitting and receiving stations for sending and receiving trolleys 10.
  • Each transmitter / receiver control unit 28 is assigned a station address for its identification.
  • Each transmission / reception control unit is usually arranged on a secondary conveyor track.
  • the stations are used in two ways, namely as turning stations and as transfer stations. A turning station enables the movement of the trolleys 10 in each case on the same secondary conveyor track into and out of the respective station on the same secondary conveyor track 16.
  • a pass-through station is characterized in that it allows the trolleys 10 to travel only in a single direction along the secondary conveyor track 16, so that a trolley 10 entering the pass-through station first leaves it.
  • a pass-through station enables a trolley 10 to be received and a further trolley to be sent at the same time
  • End stations may be formed or connected to one, but preferably two, stations for sending and receiving trolleys 10.
  • the conveyor system according to the invention also contains a number of switch control units 30, each of which has a unit with a switch device 22 in each case manure stands.
  • the switch control units 30 serve to monitor and control the assigned switch devices 22 and their movable track sections 26 and to monitor the control rails 24 in the respective switch devices 22.
  • a switch device 22 is controlled by the associated switch control unit 30, which moves the movable track section 26 via a motor with a drive device in the switch device 22 until the desired end position of the movable track section 26 is communicated to the switch control unit 30 by limit switches.
  • each turnout device 22 contains a polarity reversal relay 32 controlled by the associated turnout control unit 30, in order to be able to reverse the polarity of the supply voltage on the sections of the power supply rails 20 in the region of the movable track section 26.
  • Activation of the polarity reversal relay 32 causes a carriage 10 located on the movable track section 26 to move in one direction, while if the polarity reversal relay 32 is not actuated, the carriage 10 moves in the opposite direction.
  • the associated switch control unit 30 receives input signals via the control rails 24.
  • Each turnout control unit 30 can be connected to one or two transmit / receive control units 28, which in turn are connected to the station or stations to which the associated turnout device 22 sends or receives tram 10.
  • the turnout control units 30 are each informed of the numbers of the connection points of the turnout devices 22 connected to the respective station via programmable address switches. Likewise, further programmable address switches are used to tell the switch control unit 30 whether a single station serves as a turning station or as a pass-through station.
  • This information serves to determine the individual control steps for controlling the movement of a trolley 10 between a station and the switch device 22 connected to it.
  • a central control unit 34 which is connected to each of the switch control units 30, is used for central control of the conveyor system according to the invention.
  • the central control unit 34 contains a program-controlled processor and a memory as well as an input keyboard 36 for inputting data and information to the memory and a display unit 38 for the optical display of the desired information about the movement states of the trolleys 10.
  • the central control unit 34 serves for the delivery of information to the Different switch control units 30, so that even with a large number of different trolleys 10 in the conveyor system, the movement of an individual trolley 10 from a transmitting station to a receiving station is made possible in the shortest possible time.
  • the central control unit 34 In order to ensure exact control by the central control unit 34, this is programmed with a large amount of information about the configuration of the conveyor system according to the invention. A corresponding address is thus communicated to the central control unit 34 for each point control unit 30.
  • the central control unit 34 For each of the associated switch devices 22, the central control unit 34 is given a number of a so-called standard input connection point (SE) and a so-called standard output connection point (SX).
  • SE is generally the connection point of the switch device 22, which is located on the main traffic line of the tram 10 on the main conveyor track 14 and thus defines the starting or rest position of the movable track section 26.
  • the standard output connection point (SX) is the connection point of the switch device 22, which points in the direction of the main traffic flow and on which all trams 10 die Exit switch device 22, unless another connection point is specified as an exit for the trolley 10 by an instruction.
  • the central control unit 34 sends out a transmission information which is transmitted serially to each point control unit 30.
  • the transmission information contains several bytes.
  • the first byte contains the address of the switch control device 30 and the associated switch device 22, for which the following bytes are intended.
  • the second byte contains the numbers of the connection points of the turnout device 22 addressed in byte 1, which form the standard input connection points or the standard output connection points.
  • Byte 3 is used by the central control unit 34 to request information from the switch control units 33 and is also used to control certain functions associated therewith. Byte 4 is not used.
  • Byte 5 contains the identification number of one of the trolleys 10 in the conveyor system according to the invention; With this identification number, the central control unit 34 informs the switch control unit 30 addressed in byte 1 about the identification number of the respective trolley 10, the path of which is to be controlled by the associated switch device. With byte 6, the central control unit 30 informs the switch control unit 30 addressed in byte 1 of the number of the connection point of the associated switch device 22, which is to serve as an output for the trolley 10 identified in byte 5 when the trolley leaves the switch device 22 again. Bytes 7 and 8 each serve to transmit status or control information to the switch control unit 30.
  • an output control table 40 is stored in each switch control unit 30 in a memory, as shown in FIG. 3, with one storage location for each trolley 10 in the conveyor system is provided.
  • Each storage location has a length of 8 bits, bits 4 and 5 identifying the connection point of the corresponding switch device 22 which serves as the exit for the relevant trolley 10.
  • the junction 3 serves as the exit for the trolley 10 with the identification number n.
  • FIG. 4 shows a data format for such a response signal.
  • the response signal contains 8 bytes, the first byte containing the address of the answering point control unit 30 or the associated point control device 22.
  • Byte 2 contains monitoring information at predetermined times or status information about the switch device 22.
  • Byte 3 provides the central control unit 34 with information about the entry of a trolley 10 into the control area of the switch control unit 30.
  • the identifier number of a trolley 10 is contained in byte 4 ten, which in the case of detection of a trolley 10 together with byte 3 serves as information for the central control unit 34.
  • Bytes 5 and 6 contain information for sending and / or receiving a trolley 10 in the area of the station, which is controlled by the corresponding switch control unit 30.
  • byte 6 contains the destination or receiving address of the trolley 10 being sent, while byte 4 contains the identification number of this trolley. For each response signal, byte 4 becomes either byte 3 or byte 5 and 6
  • the switch control unit 30 preferably controls two transmit / receive control units 28, the output signal contains two further bytes 7 and 8 instead of bytes 5 and 6 in order to provide the corresponding information for a second addressed transmit / receive control unit 28.
  • Each trolley 10 in the conveyor system contains an identification signal transmitter 44 with a programmable address switch 42.
  • the address switch 42 can be used to set a multiple-bit identification number so that, for example, with an 8-bit identification number, a total of 256 trolleys with different identification numbers are used in the conveyor system can find.
  • the programmable address switch 42 is followed on the output side by a parallel / serial data converter 46, which converts the parallel output data of the programmable address switch 42 into serial data.
  • a driver amplifier 48 is connected to the serial output of the parallel / serial data converter 46, the output signal of which has a level of approximately 6 V. This signal is fed to the control rail 24 via a diode 50 as soon as the trolley 10 comes into contact with this control rail 24 via a sliding contact.
  • the control rail 24 is connected to a switch control device 30.
  • the amplified serial output signal is transmitted from the identification signal generator 44 of the trolley 10 via the control rail 24 to a receiving device 52 in the switch control unit 30.
  • the receiving device 52 contains a comparator device 54, 56, 58 with a differential amplifier 54, whose inverting input (-) at a voltage tap of a voltage divider consisting of two
  • Resistors 56 and 58 is connected and is at a voltage of about 4 V. Since the output signal of the identifier 44 of the trolley 10 has a level of approximately 6 V, the voltage of 4 V at the inverting input (-) of the differential amplifier 54 serves as a threshold voltage.
  • the serial output signal of the identification signal generator 44 is supplied via the control rail 24 to the non-inverting input (+) of the differential amplifier 54 and is amplified therein. In a downstream serial / parallel data converter 60, the amplified serial signal is converted into a parallel signal which corresponds to the identification number of the trolley set with the programmable address switch 42 of the identification signal transmitter 44.
  • the output of the serial / parallel data converter 60 is connected to a data memory 62, which supplies the identification number to the turnout control unit 30 on request.
  • the serial / parallel converter 60 and the data memory 62 are connected on the control side to the switch control unit 30.
  • the switch control unit 30 in question is able, by accessing the output control table 40 stored in it (see FIG. 3), to determine the connection point of the corresponding switch device 22 serving as the output for the trolley 10.
  • each trolley 10 contains a drive control device 64 as shown in FIG. 7.
  • the drive control device 64 contains a motor 66 which is electrically connected to the power supply rails 20 via sliding contacts.
  • the power supply rails 20 consist of two adjacent contact rails 68 and 70, each carrying different voltage potentials, so that the motor 66 connected to the two contact rails 68 and 70 drives the trolley 10.
  • the drive control device 64 also contains a switching relay 72 which, in a first switching position, connects the motor 66 to the voltage potential on the contact rail 70, so that a current flows through the current supply rails 20 through the motor 66 and drives the trolley 10. In the second switching position, the switching relay 72 short-circuits the motor connections in order to bring the motor 66 to a standstill and the trolley 10 to stop.
  • each point control unit 30 contains a detector and control device 76, which is shown in more detail in FIG.
  • the detector and control device 76 contains a threshold voltage detector 78, 80, 82 with a differential amplifier 78, the non-inverting input (+) of which is connected to the voltage tap of a voltage divider with the resistors 80 and 82.
  • the threshold voltage present at this voltage tap is approximately 22 V.
  • the inverting input (-) of the differential amplifier 78 is connected to the voltage tap of a further voltage divider, which consists of a resistor 84 and the control rail 24.
  • the voltage signal at the inverting input (-) of the Diffe is limit amplifier 78 about 24 V and is therefore greater than the threshold voltage at the non-inverting input (+).
  • the differential amplifier 78 outputs an output signal with a low level (low).
  • the internal resistance 86 of the trolley 10 causes the voltage at the inverting input (-) of the differential amplifier 78 in the event that the value of the internal resistance 86 is approximately 8.2 kiloohms and the value of resistor 84 is about 100 kiloohms lowered to about 2 volts. The result of this is that a high signal level (high) is generated at the output of the differential amplifier 78, which indicates the presence of the trolley 10 on the control rail 24.
  • the voltage on the control rail 24 also serves to control the trolley 10 and is supplied to the drive control device 64 of the trolley 10 via a Zener diode 88 (see FIG. 7) .
  • a zener diode 88 is followed by a two-stage arrangement with a first transistor switch 90 and a second transistor switch 92, the second transistor switch 92 being in a current path with the excitation coil 94 of the switching relay 72.
  • the voltage on the control rail 24 is approximately 2 V, so that the Zener diode 88, which has a Zener voltage of approximately 12 V, is in a non-conductive state.
  • the detector and control device 76 of the switch control unit 30 shown in FIG. 8 also has a transistor 96 which is connected to the control rail 24 via a resistor 98.
  • the switch control unit 30 In order to bring the trolley 10 to a standstill, the switch control unit 30 generates a stop signal which is fed to the base of the transistor 96 and controls the transistor 96 in a current-conducting state.
  • the resistor 98 acts via the control rail 24 together with the internal resistor 86 of the drive control device 64 of the trolley 10 as a voltage divider, which applies a voltage of approximately 19 V to the Zener diode 88 in the drive control device 64 of the trolley 10.
  • the Zener diode 88 Since this voltage exceeds the Zener voltage (approximately 12 V) of the Zener diode 88, the Zener diode 88 is in a current-conducting state, so that the downstream first switching transistor 90 is also controlled in a current-conducting state and the second switching transistor 92 in a current-blocking state. This results in an interruption of the current flow through the excitation coil 94 of the switching relay 72, so that the switching relay 72 falls back into its second switching position, in which the motor connections of the motor 66 are short-circuited and, accordingly, the trolley 10 is at a standstill.
  • a rectifier bridge circuit 100 which is connected to the contact rails 68 and 70 on the AC side, serves to supply power to the two-stage arrangement with the first switching transistor 90 and the second switching transistor 92 and the excitation coil 94 of the switching relay 72.
  • the identification signal transmitters 44 of the various trolleys 10, the drive control devices 64 of the trolleys 10 or the detector and control devices 76 of the switch control units 30 must not influence one another. If at the exit of a Identifier 44 an output signal with a level of about 6 V is present, this signal has no influence on the conductivity of the Zener diode 88 in the drive control device 64, so that no current flows through the excitation winding 94 of the switching relay 72 and the motor 66 to the contact rails 68 and 70 remains switched.
  • the diode 50 at the output of the transmitter 44 of the trolley 10 is controlled by the voltage of about 19 V on the control rail 24 in a non-conductive state, so that a possible by the output resistance of the Transmitter 44 causes the voltage at the zener diode 88 to drop below the zener voltage (approximately 12 V).
  • the idle number of the trolley 10 cannot be detected while a trolley 10 is stationary in the area of a control rail 24. In the conveyor system according to the invention, however, it is not necessary due to the control to record the identification number of a trolley 10 which is at a standstill.
  • the inverting input (-) of the differential amplifier 78 is at a voltage of 19 V, which is in any case lower than the voltage at the non-inverting input (+) of 22 V, so that the threshold voltage detector 78, 80, 82 receives a high level (high) as long as the trolley 10 is at a standstill and in contact with the control rail 24.
  • FIG. 9 shows an exemplary embodiment of a switch device 22a.
  • the switch device 22a shown has four connection points with the numbers 0 to 3.
  • a trolley 10 which enters the switch device 22a at one of the four connection points 0 to 3, leaves it at one of the three other connection points on the way to its destination.
  • the connection points 0 and 2 are each connected to sections of the main conveyor track 14, sections of a secondary conveyor track 16a and 16b being connected to the connection points 1 and 3.
  • one connection point of the switch device 22a is defined as the standard input connection point (SE) and another connection point as the standard output connection point (SX). In the event that z. B.
  • SE standard input connection point
  • SX standard output connection point
  • the switch device 22a further includes a movable track section 26a, which is positioned between the standard input connection point 0 and the standard output connection point 2. If a trolley 10 moves on one of the branching sections of the secondary conveyor track 16a or 16b, the movable track section 26a is moved into the position shown in broken lines.
  • Control rails 24a which consist of a pair of detector rails 105 and a stop rail 104 lying between them, are arranged on the movable track section 26a.
  • the stop rail 104 is used to stop a trolley 10 and to detect its presence.
  • the detector rails 105 detect the presence of a trolley 10 on the movable track section 26a in the event that the conveyor carriage 10 is not in the area of the stop rail 104.
  • the control rails 24a thus serve to notify the switch control unit 30 via the detector rail 105 when a trolley has entered the associated switch device 22a, and they also serve to bring the trolley 10 to a stop on the movable track section 26a via the stop rail 104.
  • the movable track section 26a can be moved into its second position, shown in broken lines, in order to enable the conveyor carriage 10 to move further on the sections of the secondary conveyor track 16a and 16b.
  • the sections of the main and secondary conveyor tracks connected to the connection points 0 to 3 of the switch device 22a likewise each have a stop rail 104 and a detector rail 106.
  • the detector rails 106 are used, on the one hand, to detect the presence of a trolley 10 on the relevant conveyor track by the downstream detector and control device 76 of the associated point control unit 30.
  • the receiving device 52 of the point control unit 30 reads in the identification number of the trolley 10 via the detector rail 106.
  • the stop rail 104 like the corresponding stop rail 104 of the movable track section 26a, serves for detecting the presence and for stopping a trolley 10.
  • each conveyor track in the area of the respective connection point 0 to 3 of the switch device 22a has a stop rail 104 and a detector rail 106 it is possible to prevent the transport of a trolley 10 into the switch device 22a as long as a trolley 10 is already in the switch device 22a; the turnout control unit 30 is informed at all times of the presence and the identification numbers of the trolleys 10 ready to enter or leave the turnout device 22a.
  • the polarity reversal relay 32 serves to set the desired voltage polarity on the power supply rails 20a of the movable track section 26a such that the trolley 10 can leave the switch device 22a in different directions, namely on the section 16a or on the section 16b.
  • the embodiment of the conveyor system shown schematically in FIG. 10 serves to explain the functioning of the conveyor systems according to the invention.
  • six stations A to F are provided for sending and / or receiving trolleys 10; each transmission / reception station A to F is assigned a transmission / reception control unit 28a to 28f.
  • the conveyor system also contains nine switch devices 22a to 22i, each of which is connected to its own switch control unit 30a to 30i for controlling and monitoring the sequence of movements of the trolleys 10.
  • the switch devices 22 serve different functions.
  • the switch devices 22e and 22i are thus exclusively intended to divert the direction of travel of the trolleys 10 at each end of the main conveyor track 14.
  • the main conveyor track 14 consists of two parallel directional tracks, along which the trolleys 10 travel in opposite directions. Each trolley 10 that enters one of the two switch devices 22e or 22i is transferred from one directional track to the other directional track of the main conveyor track 14 with the aid of the respective movable track section 26e or 26i.
  • the switch device 22a, 22f and 22g serve u. a. to redirect the trolley 10 to a turning conveyor track 16a, 16d or 16e.
  • the trolley 10 can be bidirectionally either from the corresponding switch device 22a, 22f or 22g to a turning / receiving station A, D or E or in the opposite direction from one of the transmitting / receiving stations A, Drive D or E to the corresponding switch device 22a, 22f or 22g.
  • the switch device 22a can transport trolley 10 both to the transmitting / receiving station A and can receive from it.
  • the switch device 22f serves both for sending trolleys 10 to the transmitting / receiving station D and for receiving the trolleys 10 from this station D.
  • station D serves to temporarily park certain trolleys 10.
  • the standard exit connection point (SX) of the switch device 22f is assigned to the connection point 2 connected to the station D.
  • SX standard exit connection point
  • the turnout device 22g serves to send or receive the trolleys 10 to and from the transmitting / receiving station E via the turning conveyor track 16e.
  • the conveyor system shown in FIG. 10 also contains secondary conveyor tracks 16b, 16c and 16f, which only allow conveyor car transport in one direction.
  • These secondary conveyor tracks 16b, 16c and 16f serve to forward the trolleys 10 from the respective switch devices 22a, 22d and 22h in one direction to transmitting / receiving stations, so that they receive the trolleys 10 from this one direction the trams can only forward the stations in the same direction.
  • the switch device 22a which, as already described, is connected to the station A via the turning conveyor track 16a, is additionally connected to the transmitting / receiving station B for receiving the trolleys 10 via a section of the secondary conveyor track 16b.
  • the switch device 22d enables the transport of the trolleys 10 to the station C via the secondary conveyor track 16c, and the switch device 22h is connected via a section of the secondary conveyor track 16f to the transmitting / receiving station F, which receives the conveyor cars 10 from the switch device 22h.
  • the switch devices 22c and 22g are each connected to the stations B and F via sections of the secondary conveyor tracks 16b and 16f, while the switch device 22d both for reception and is also connected to the station C for sending the trolleys 10 via the secondary conveyor track 16c.
  • the switch device 22b is furthermore arranged, which has two simultaneously movable track sections 22b and 22b 'lying parallel to one another.
  • the two movable track sections 22b and 22b ' are slidably mounted between the connection points 0 to 3 of the switch device 22b in such a way that the track section labeled 26b can be moved from a position aligned with the connection points 1 and 3 to a position between the connection points 0 and 2 and the other track section 26b 'is simultaneously shifted from a position between the connection points 0 and 2 into the position shown in broken lines.
  • this switch device 22b it is possible to divert a trolley 10 from one directional track of the main conveyor track 14 to the other directional track, so that there is the possibility of the route and the Shorten the travel time of a tram 10 from one station to another station. If, for example, a trolley 10 is dispatched from station A, to which station E is assigned as the destination address, where trolleys 10 entering the movable track section 26b 'between the connection points 1 and 3 of the point device 22b are moved between the connection points 0 and 2, so that the trolley 10 can reach the station E from this position via the switch device 22g. Otherwise, the trolley 10 would have had to pass through switch devices 22c, 22d, 22e and 22f on its way to station E.
  • switch directions 22e and 22i at the ends of the main conveyor track 14 it should be pointed out that it is also possible to guide the direction tracks of the main conveyor track 14 into one another at their ends in a semicircle, so that the two direction tracks of the main conveyor track 14 are one in this way form a closed loop. In this case, the two switch devices 22e and 22i can be omitted. Furthermore, it is also not necessary for the two directional tracks of the main conveyor track 14 to run parallel to one another, as shown in FIG. 10; in accordance with the respective spatial requirements, it may be more advantageous to loop the directional tracks at a large distance from each other.
  • the switch devices 22 serve to connect secondary conveyor tracks to the main conveyor track 14.
  • control and monitoring of the conveyor system according to the invention there are no restrictions.
  • a conveyor path table 110 is created in the memory of the central control unit 34. With reference to the exemplary embodiment of the conveyor system according to the invention shown in FIG. 10, such a conveyor path table 110 is shown in FIG.
  • the conveyor path table 110 contains all the transmitting or receiving stations A to F and all the switch devices 22a to 22i of the conveyor system according to FIG. 10, the rows and the switching devices 22a to 22i the columns of the conveyor path table 110 being assigned to the transmitting / receiving stations A to F.
  • the conveyor path table 110 arises from the point of view of determining the shortest possible conveyor path for the trolley 10 on the way to its receiving station, including the switch devices 22 with which the trolley 10 comes into contact and whose connection point serving as an exit for the trolley 10 is other than is the respective standard output connector (SX).
  • the content of the conveyor path table 110 is independent of the station from which the conveyor truck 10 was sent.
  • a trolley 10 to which station B (see FIG. 10) is assigned as the destination address must instead leave the switch device 22f instead of at the standard exit connection point 2 at the connection point 1, the corresponding movable track section 26f by the associated switch control device 30f is moved into an aligned position with the connection point 1. If this trolley 10 comes from the right into the area of the switch device 22b, the associated switch control unit 30b will preferably determine the connection point 0 as the output for the trolley 10 and not the standard exit connection point 3.
  • the trolley 10 with the station B as the destination address Switch device 22a does not leave the standard exit connection point 2, but instead the trolley 10 is controlled to leave the switch device 22a by means of the movable track section 26a in a position aligned with the connection point 3.
  • the associated switch control device 30 controls the respective movable track section 26 such that the trolley can leave the respective switch device 22 at its standard exit connection point (SX).
  • station B contains a trolley 10 to be sent to station E.
  • the user of the conveyor system first enters the address of the receiving station E into the transmitting / receiving control unit 28b assigned to the transmitting station B. This address information is received by the switch control device 30a, via which the transceiver control unit 28b is connected to the central control unit 34. Is the receiving station E for the trolley 10th Ready to receive, the central control unit 34 transmits corresponding information to the switch control unit 30a for sending the trolley 10.
  • the trolley 10 leaves the transmitting station B, its identification number is detected via the detector rail 106 of the secondary conveyor track 16b indicated by a point in FIG.
  • the identification number is transmitted to the central control unit 34 together with the transmission address of the transmission station B via the switch control unit 30a. It is further assumed that the conveyor system shown in FIG. 10 is capable of controlling and monitoring 16 individual trolleys 10 and that the trolley 10 sent to the receiving station E has the identification number 13.
  • the central control unit 34 now accesses the conveyor path table 110 stored in its memory in order to determine the desired conveyor path of the trolley 10 with the identification number 13 to the station E.
  • the conveyor path table 110 contains the instruction to assign the trolley 10 in the switch device 22b to the connection point 0 as an output. This instruction is communicated to the switch control unit 30b by the central control unit 34.
  • the switch control units 30f and 30e receive the instruction from the central control unit 34 based on the conveyor path table 110 to control the associated switch devices 22f and 22g in such a way that the trolley 10 with the identification number 13 leaves the connection points 1 and 2, respectively.
  • the switch control unit 30g thus contains the information that the trolley 10 with the identification number 13 reaches the receiving station E when it leaves the switch device 22g at its junction 2. On its way to the station E, the trolley 10 with the identification number 13 will additionally pass through the switch devices 22c, 22d and 22e, the associated switch control units 30c, 30d and 30e determining the respective standard exit connection point (SX) as the exit for the trolley 10.
  • SX standard exit connection point
  • the point control units 30b, 30f and 30g store in the output control table 40 (see FIG. 3) stored in their memories in the row for the trolley 10 with the identification number 13 the respective number as the output for the trolley 10 serving connection point of the associated switch devices 22b, 22f and 22g. Instead, a substitute code word is stored in the table spaces for the individual trolleys 10, in which a number of the connection point has not been entered, which designates the respective standard exit connection point of the relevant switch device 22.
  • the switch control unit 30a When the trolley 10 with the identification number 13 leaves the transmitting station B, the switch control unit 30a outputs a response signal containing the identification number 13 of the trolley 10 to the central control unit 34. As already shown in FIG. 4, this response signal contains a number of information bytes, of which byte 4 the identification number 13 of the trolley 10, byte 6 the address of the receiving station E and byte 1 the address of the switching device 22a or the one assigned to it and the response signal sending switch control unit 30a contains. If the trolley 10 with the identification number 13 reaches the switch device 22c, the assigned switch control unit 30c accesses the output control table 40 stored in it and takes from it the information that the tram 10 located in the switch device 22c has the standard exit connection point 2 as an exit to the main conveyor track 14 can be assigned.
  • This determination is made by querying the identification bit 6 in the line for the trolley 10 with the identification number 13 of the output control table 40, a value 0 of the identification bit meaning that the standard exit connection point (SX) is provided as the output for the trolley 10.
  • the switch control unit 30c 4 in turn sends a transmission information to the central control unit 34 with the data format shown in FIG. 4, which in bytes 3 and 4 informs the central control unit 34 that the point control unit 30c identified in byte 1 has detected the presence of a trolley 10 with the identification number 13 .
  • the switch control units 30d and 30e control the switch devices 22d and 22e assigned to them in such a way that the trolley 10 with the identification number 13 leaves both switch devices 22d and 22e via their standard exit connection points 2 and 0, respectively.
  • the associated switch control units 30f and 30b determine from the output control tables 40 stored in them that for the trolley 10 with the identification number 13 it is not the respective standard exit point (SX) but the connection point 1 of the switch device 22f or the connection point 0 the switch device 22b serves as an output.
  • the switch control units 30f and 30b control the movable track sections 26f and 26b of the switch devices 22f and 22b so that they are aligned with the connection points intended for outputs.
  • the output control table 40 in the memory of the associated switch control unit 30g for the identification number 13 indicates that the relevant trolley 10 is to be rerouted to the connection point 2.
  • the central control unit 34 Before the trolley 10 with the identification number 13 enters the switch device 22g, it is identified via the detector rail 106 on the section of the main conveyor track 14 connected to the connection point 3 and the arrival of the trolley 10 is communicated to the central control unit 34.
  • the central control unit 34 has the entire movement sequence of the trolley 10 with the identification number 13 is monitored with the aid of the transmission information received and given by it in the data formats indicated in FIG. 2 or in FIG. 4.
  • the central control unit 34 terminates the execution of the program part currently running in it and gives the instructions to the switch control units 30b, 30f and 30g, in the respective output control tables 40 the to replace the respective exit for the trolley 10 with the identification number 13 by corresponding information values which denote the standard exit connection points (SX) of the respectively assigned switch devices 22b, 22f and 22g.
  • SX standard exit connection points
  • the control sequence for the movement of two different trolleys 10 to and from a common switch device 22 is described below with the aid of a further example. It is assumed here that the two trolleys 10 have the identification numbers 7 and 12 and move together on the main conveyor track 14 in the direction of the switch device 22a. It is further assumed that the tram 10 with the identification number 7 is assigned the destination address of the station C 'and that the trolley 10 with the identification number 12 has the destination A as its destination, which is connected to the switch device 22a via the turning conveyor track 16a. Finally, it is assumed that the trolley 10 with the identification number 7 moves in front of the trolley 10 with the identification number 12 on the main conveyor track 14. As soon as the trolley 10 with the identification number 7 arrives in the section of the main conveyor track 14 immediately in front of the connection point 0 of the switch device 22a, the detector and control device 76 detects in the switch control unit 30a via the stop rail 104 (cf.
  • Identification number 7 immediately in front of the connection point 0 and generates a stop signal for the stop rails 104 of those conveyor track sections which are connected to the other connection points of the switch device 22a serving as an input.
  • the switch control unit 30a generates a stop signal on the stop rail 104 of the section of the turning conveyor track 16a connected to the connection point 1. Since the switch devices 22 can each accommodate only a single trolley 10, the stop signal on the stop rail 104 prevents further trolleys 10 from entering the switch device 22a as long as the trolley 10 with the identification number 7 is in the switch device 22a. In the case of the switch device 22a, this has the consequence that each trolley 10 which is emitted by the station A is stopped in front of the connection point 1 of the switch device 22a.
  • the associated switch control unit 30a also generates a stop signal for the stop rail 104 just passed by the trolley 10 with the identification number 7, so that the subsequent trolley 10 with the identification number 12 is stopped on the stop rail 104 until the trolley 10 with the identification number 7 has left the switch device 22a.
  • the receiving device 52 in the switch control unit 30a reads in the identification number 7 emitted by the transmitting device 44 of the trolley 10 via the detector rail 106.
  • the turnout control unit 30a determines from that stored in it saved output control table 40 that connection point, which is intended as an output for the trolley 10 with the identification number 7.
  • the standard exit connection point (SX) of the switch device 22a serves as an exit.
  • This information results from the identification bit 6 in the output control table 40, which indicates with a 0 as an information value that the corresponding trolley 10 is assigned the standard exit connection point (SX) as an exit for leaving the switch device 22a. Since the movable track section 26a of the switch device 22a is in its rest position between the connection points 0 and 2, the trolley 10 with the identification number 7 passes through the switch device 22a without stopping and leaves it at the connection point 2 on the way to its destination station C.
  • the switch control unit 30a detects, via the detector rail 106 of the section of the main conveyor track 14 connected to the connection point 2 of the switch device 22a, the time at which the trolley 10 with the identification number 7 has left the switch device 22a and thereby recognizes the control of the trolley 10 with the identification number 7 in the area of the switch device 22a as finished.
  • the switch control unit 30a then interrogates the stop rails 104 of the conveyor track sections connected to the connection points serving as inputs for the presence of further conveyor carriages 10. In the case of the one discussed here.
  • the switch control unit 30a detects the presence of the further trolley 10 with the identification number 12 on the stop rail 104 of the section of the main conveyor track 14 which is connected to the connection point 0.
  • the switch control unit 30a now cancels the stop signal lying on the stop rail 104 so that the trolley 10 with the Identification number 12 continues its journey via junction 0 to the movable track section 26a of the switch device 22a.
  • the trolley 10 with the identification number 12 passes over the detector rail 106 upstream of the junction 0 on the main conveyor track 14, the switch control unit 30a - as already described above for the trolley 10 with the identification number 7 - the stop rail 104 located in front of the detector rail 106 with a
  • the stop signal is applied and the identification number 12 of the relevant trolley 10 is read in via the detector rail 106.
  • the point control unit 30a determines from the output control table 40 stored in it the connection point which is intended as the output for the trolley 10 with the identification number 12.
  • the junction 1 serves as an exit for the trolley 10. It is therefore necessary to move the trolley 10 to the junction 1 using the movable track section 26a to postpone. As soon as the trolley 10 entering the switch device 22a with the identification number 12 reaches the stop rail 104 on the movable track section 26a, the presence of the trolley 10 is detected by the switch control unit 30a and a stop signal for stopping the trolley 10 is emitted. The switch control unit 30a then controls the movable track section 26a from the position aligned with the connection points 0 and 2 into a new position aligned with the connection points 1 and 3 and shown here in broken lines.
  • the switch control unit 30a by actuating the polarity reversal relay 32, reverses the polarity of the supply voltage on the power supply rails 20a of the movable track section 26a, so that after the stop signal on the stop rail 104 has been removed, the trolley 10 with the identification number 12 the switch device 22a leaves at its junction 1.
  • the trolley 10 travels over the detector rail 105 of the movable track section 26a and subsequently over the detector rail 106 and the stop rail 104 of the section of the turning conveyor track 16a connected to the connection point 1.
  • the switch control unit 30a detects via the stop rail 104 the time at which the trolley 10 with the identification number 12 leaves the switch device 22a and thereby recognizes the control of the trolley 10 with the identification number 12 in the area of the switch device 22a as finished. Thereafter, the switch control unit 30a controls the movable track section 26a back to its rest position between the connection points 0 and 2 and ends the activation of the polarity reversal relay 32, so that the direction of travel for the trolleys 10 on the movable track section 26a again runs from left to right in the direction of the default exit port (SX) of the switch 22a is set. The turnout control unit 30a then again interrogates the stop rails 104 of the conveyor track sections connected to the connection points serving as inputs for the presence of further conveyor carriages 10, in order to control them one after the other as described above by the turnout device 22a.
  • the central control unit 34 provides the evaluation of the by the transmission / reception control unit 28a Transmission information transmitted to the central control unit 32 via the switch control unit 30a (see FIG. 4) for so long until the central control unit 32 has determined that the trolley 10 ready for dispatch in station A is determined next in the sequence of the trolleys 10 to be controlled by the switch device 22a.
  • Another control function of the central control unit 34 serves to prevent the sending of additional trolleys 10 into the conveyor system if the central control unit 34 has been informed by the user of a maximum permissible number of trolleys 10 rotating in the conveyor system. In this case, the central control unit 34 rejects all transmission information sent by the transmission / reception control units 28, which contains a request to send trolleys 10.
  • the central control unit 34 is equipped with a large number of further monitoring functions.
  • a first monitoring function relates to the detection of the average time that a trolley 10 needs to travel from one switch device 22 to another switch device 22.
  • the central control unit 34 determines whether a trolley 10 requires an above-average travel time between two switch devices 22. For this purpose, the central control unit 34 stores information about the travel sequences of the individual trolleys 10 in its memory.
  • This information includes, in particular, the address of the sending and receiving stations assigned to the respective trolley 10, the identification numbers of the individual trolleys 10 and the elapsed travel time of the trolleys 10 Trams 10 each have a counter is reset each time the trolley 10 leaves a switch device 22.
  • the detection of the moment at which a trolley 10 leaves a switch device 22 has already been described in detail above.
  • the central control unit 34 constantly compares the counter reading of each individual counter with a predetermined time value. If the counter reading exceeds the specified time value, the central control unit 34 issues an error message together with the identification number of the respective trolley 10 for the user of the conveyor system.
  • the predefined time value is preferably selected to be somewhat longer than the time period which a trolley 10 requires on its way between the most distant switch devices 22 or the detector rails 18 or the control rails 24.
  • An extension of the monitoring function of the central control unit 34 described above relates to the determination of the approximate position of the respective trolley 10 in the conveyor system at the point in time at which the counter reading the predetermined time value in connection with the detection of the travel time of the trolley 10 between two switch devices 22 described above exceeds. This is done in that the central control unit 34 additionally stores the address of the last switch device 22 that the trolley 10 passed through before the error message occurred. On the basis of this additional information, the user of the conveyor system is able to find the relevant conveyor 10 in the conveyor system in the event of a fault.
  • the dwell time of each individual trolley 10 in the conveyor system is recorded from a transmission station from the time of its dispatch.
  • the central control unit 34 contains for everyone to be monitored Trams 10 each have a further counter, which is reset as soon as the trolley 10 in question leaves the transmitting station. If the dwell time of the trolley 10 in the conveyor system reaches a predetermined maximum duration, then the central control unit 34 causes a further error message to be issued.
  • the predefined maximum duration is chosen to be slightly longer than the maximum expected time that a trolley 10 needs on its way from a transmitting station to a receiving station when the conveyor system is functioning properly.
  • This second monitoring function is used to record possible errors that would otherwise go undetected.
  • a trolley 10 with the identification number 13 is sent from station B to station E. It is assumed that, for some reason of error, the soft device 22g does not assign the trolley 10 the connection point 2, but the standard exit connection point 0 as the output.
  • the trolley 10 with the identification number 13 would constantly circulate on the main conveyor track 14 through the switch devices 22a, 22b, 22g, 22h and 22i, and at each of these switch devices the position of the trolley 10 would be detected by the central control unit 34. In this fault case, after some time the duration of the trolley 10 with the identification number 13 in the conveyor system exceeds the predetermined maximum duration, so that the central control unit issues an error message together with the identification number 13 for the user of the conveyor system.
  • the central control unit 34 advantageously contains a program part which causes the trolley 10 to be controlled back into its transmitting station.
  • the return of the respective funding Carriage 10 can be carried out very easily because the central control unit 34 contains in its memory the addresses of the transmitting stations from which the individual trolleys 10 have been sent to the conveyor system. In a modification of this, it is possible not to send the relevant trolleys 10 back to their respective transmitting stations, but instead to assign the addresses of the storage station D as the destination address to the trolleys 10.
  • a third monitoring function of the central control unit 34 relates to the recording of the total length of stay of all trolleys 10 in the conveyor system.
  • the total time of stay corresponds to the sum of all times of stay of the individual trolleys 10.
  • the user of the conveyor system receives all the necessary information about the degree of utilization of the conveyor system according to the invention.
  • a further monitoring function of the central control unit 34 relates to the control of trolleys 10 in the event that the receiving station assigned to them in each case via the destination address is overcrowded with other trolleys 10 and is therefore no longer ready to receive.
  • each station is assigned a rail, which is connected to the switch control unit 30 associated with the station. If a trolley 10 is located on such a rail, this indicates to the respective switch control unit 30 that the station in question can no longer accommodate any further trolleys 10. In this case, the station in question blocks the access of further trolleys 10 and redirects them. The trams 10 thus redirected continue their journey and, if necessary, reach their desired destination address.
  • the central control unit 34 receives the number of trolleys 10 diverted at the overcrowded station via the respective switch control unit 30 Central control unit 34 compares the current number of redirected trolleys 10 with a predetermined numerical value, and if this numerical value is exceeded, central control unit 34 can, for example, arrange for further trolleys 10 to be sent back to their respective transmitting station on the way to the overcrowded station.
  • the central control unit 34 carries out an additional monitoring function which serves to provide a predetermined number of trolleys 10 in each station of the conveyor system. For this purpose, the central control unit compares the number of trolleys currently in a station with the predetermined minimum number of trolleys 10 in each station. If the current number of trolleys 10 in the station is less than the predetermined number, the central control unit 34 automatically sends a corresponding number of further trolleys 10 to the station.
  • the conveyor system according to the invention can have a storage station from which the trolleys 10 required to fill up the other stations can be called up.
  • the central control unit 34 of the conveyor system provides for the display of important information relating to the individual trolleys 10 controlled in the conveyor system travel via a display unit 38 (cf. FIG. 1).
  • the input keyboard 36 allows the user to select the information to be displayed.
  • This information includes the display of all the trolleys 10 that are in motion with their respective identification numbers and their respective sending and receiving stations. Further information of this type relates to the display of the travel times of the individual trolleys 10, the indicators of the current location of the individual trolleys 10 and the display of the respective operating states of the individual stations and switch devices 22.
  • the information about the operating states includes e.g. B. the display of whether a turning point to the central control unit 34 to send a tram 10, or whether the entry and exit of the tram 10 via the corresponding standard input connection points (SE) or standard output connection points (SX) of the switch devices 22.
  • SE standard input connection points
  • SX standard output connection points
  • FIGS. 12A to 12D show flow diagrams of the control and monitoring functions of the central control unit 34 described above.
  • the invention relates to a computer-controlled conveyor system with a number of trolleys for conveying various types of conveyed goods from transmitting stations to receiving stations.
  • the conveyor system according to the invention has a main conveyor track, along which the trolleys are moved between individual stations. Secondary conveyor tracks branch off from the main conveyor track, on which the trolleys are transported between the main conveyor track and sending or receiving stations.
  • Sectional switch devices are provided along the main conveyor track.
  • Each switch device has four connection points and a movable track section.
  • the four connection points form connection points for sections of the main conveyor track and / or the secondary conveyor track, with which the movable track section can be brought into an aligned position.
  • the movable track section serves as a link between the main conveyor track and a secondary conveyor track. For this purpose, the movable track section can be moved into two positions push, forming a part of the main conveyor track in the first position and forming part of the secondary conveyor track in the second position.
  • Each turnout device is connected to a turnout control unit.
  • the individual turnout control units are in turn connected to a central control unit which carries out control and monitoring functions in accordance with the invention.
  • Transmit / receive control units which are assigned to the respective secondary conveyor tracks and are arranged at the various transmit and receive stations, are connected to the central control unit via the individual switch control units.
  • Each trolley is assigned its own identification signal transmitter for controlling and monitoring the movement of the large number of trolleys by the central control unit.
  • the user of the conveyor system enters into the central control unit a receiving address for the transmitting / receiving station to which a conveyor car is to be sent via the main conveyor track.
  • the central control unit is able to control the movement of the trolley along a desired conveyor track.
  • the associated point control unit uses the information received from the central control unit and spoken by the point control unit to assign the movable track section of the point device to the desired position, so that the trolley can find its way along the desired or selected conveyor track can continue.
  • the point control unit determines the tram identifier and uses it to determine the desired position of the travel baren track section.
  • the switch control unit controls the movable track section into a position in which the trolley is moved onto the secondary conveyor track and can reach the receiving station addressed by the receiving address.
  • the central control unit In addition to the function of controlling the movement of the trolleys from the transmitting stations to the receiving stations with the aid of the trolley identifier, the central control unit with the associated switch control units provides a large number of other additional functions which are important for the function of the conveyor system according to the invention.
  • the central control unit also serves to prevent trolleys from being sent from a transmitting station if the addressed receiving station is not available.
  • the central control unit also automatically changes the specified route during the movement of a trolley if the receiving station is not ready to receive.
  • the central control unit also serves to monitor the approximate position of each individual trolley during its movement along the conveyor track. There is also the possibility of recording the elapsed time of a trolley moving in the conveyor system according to the invention since it was sent from a transmitting station.
  • the duration of use of each individual trolley in the conveyor system according to the invention can be determined accordingly.
  • Another control function of the central control unit is to provide a sufficient number of trolleys for each individual station.
  • empty trolleys or trolleys, the identification of which cannot be determined, are controlled by the central control unit at specified stations.
  • the computer-controlled conveyor system according to the invention enables efficient transportation of each of many trolleys to the desired destination.
  • the identifier can thus be attached to the trolley with little effort and can easily replace actuators for controlling the movement of the trolley.
  • the conveyor system according to the invention enables a display and monitoring of the movement of the various trolleys with different target directions, so that the user of the conveyor system is informed about the targets of the various trolleys, their current position and their conveyance in the conveyor system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Control Of Conveyors (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Framework For Endless Conveyors (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Discharge Of Articles From Conveyors (AREA)
EP85730076A 1984-06-05 1985-06-05 Système transporteur à véhicules transporteurs à mouvement commandé Expired - Lifetime EP0164302B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85730076T ATE76371T1 (de) 1984-06-05 1985-06-05 Foerderanlage mit bewegungsgesteuerten foerderwagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/617,348 US4630216A (en) 1984-06-05 1984-06-05 Method and apparatus for controlling and monitoring movement of material-transporting carriages
US617348 1984-06-05

Publications (3)

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EP0164302A2 true EP0164302A2 (fr) 1985-12-11
EP0164302A3 EP0164302A3 (en) 1988-09-07
EP0164302B1 EP0164302B1 (fr) 1992-05-20

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US (1) US4630216A (fr)
EP (1) EP0164302B1 (fr)
JP (1) JPS6159508A (fr)
AT (1) ATE76371T1 (fr)
DE (1) DE3586071D1 (fr)
HK (1) HK68195A (fr)

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HK68195A (en) 1995-05-12
EP0164302A3 (en) 1988-09-07
DE3586071D1 (de) 1992-06-25
EP0164302B1 (fr) 1992-05-20
ATE76371T1 (de) 1992-06-15
JPS6159508A (ja) 1986-03-27
US4630216A (en) 1986-12-16

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