CN1094110C - Unit for contrilling elevator - Google Patents

Abstract

An elevator control device, equipped with: by detecting the first switch state signal of the car door approaching the closing end and the second switch state signal of detecting the door is completely closed, when the door is completely closed, the start possible signal is output to the control circuit The door closing completion identification device; when the first switch closing signal is output and the second switch closing signal is output instantaneously, by maintaining the signal state and ignoring the subsequent second switch signal state, the operation possible signal that continues to run will be output to the controller operation of the circuit continues to maintain the device. The elevator control device has the advantages of safe passenger transport, operation priority, notification of car door abnormality and removal of the abnormality, and the like.

Description

Elevator Control

The present invention relates to an elevator control device, in particular to an elevator control device which is improved by making the elevator start after the car door is completely closed.

Usually, the structure of the elevator is provided with a switch for detecting when the car door is closing, and the switch starts the elevator in the closed state.

FIG. 3 and FIG. 4 show configuration diagrams of a conventional car door as disclosed in JP-A-3-288786.

In Fig. 3, 21 is the car door of the elevator, 22 is the first switch that the contacts close when the car door 21 is close to the closing end, and outputs the conduction signal, 23 is the contact plate that makes the above-mentioned first switch 22 act, 24 Be front column, 25 is the threshold that is provided with the ditch that guides car door 21, and 26 is upper frame, and 27 is the guide rail that vertically hangs car door 21.

Here, the car door 21 of the elevator is a horizontally opened door that moves to the right from the open state position on the left in the figure to become a closed state, so the above-mentioned first switch 22 is adjusted according to the position of the car door 21 relative to the front pillar 24. When it reaches a certain distance such as 10mm, it is closed and installed, and then it contacts with the front column 24 by the action of a spring mechanism not shown in the figure. Therefore, the car can be started by a control circuit not shown by the closing of the first switch 22, and the elevator will stop immediately when the first switch 22 is opened during operation.

Yet between the car door 21 of elevator and the front pillar 24, there is a dog chain or a long belt, and then the car door 21 is in an incompletely closed state. By closing the above-mentioned first switch 22, once the elevator starts running, it constitutes a dangerous state. . In order to eliminate this dangerous state, in the technology shown in the above publication, as shown in the enlarged view of FIG. 4 , in addition to the first switch 22, a second switch is also provided as a safety check means at startup.

That is, in Fig. 4, the same part as Fig. 3 represents the same part, as a new symbol, 28 is the second switch that closes and outputs the conduction signal when the contact is closed when the car door 21 is fully closed, and 29 is the second switch that makes the above-mentioned first The touch piece of two switch 28 actions, above-mentioned touch piece 23 and touch piece 29 are made to move synchronously with car door 21. The above-mentioned second switch 28 is used as a safety inspection means when starting, that is, when the first switch 22 is closed, the car door 21 is closed, and the car is started, and the timer not shown in the figure is activated at the same time, and when the first switch 22 is closed After the above-mentioned timer setting time, when the second switch 28 is closed, the car is operated safely while maintaining the starting state, and when the second switch 28 is not closed within the above-mentioned timer setting time, the starting is interrupted, and the car Car stopped.

But above-mentioned existing elevator control device, no matter what the second switch 28 is, as long as the action of the first switch 22 just constitutes the starting control to the car, so between the car door 21 and the front pillar 24 of the elevator, there is a small rock. Or garbage, in the state where the car door 21 is not fully closed, once the first switch 22 is closed to start the car, due to the above-mentioned timer failure or setting time, even if the car door 21 of the elevator is in the incompletely closed state, it cannot Stop starting, also can't stop to keep starting state according to the action of first switch 22 simultaneously, make car start, run, form dangerous state.

Also, in the state where the car door 21 is not completely closed, when the first switch 22 is closed and the elevator is started, the car door moves a little due to poor contact of the second switch 28 or the passenger relies on the car door. When the second switch 28 is turned off after the timer setting time, the control circuit becomes invalid, and the car stops urgently. Equally, after the elevator starts, the car door 21 moves toward the direction of opening due to the vibration in the operation of the elevator, so that when the first switch 22 is disconnected, the problem that exists is that the elevator stops urgently. If it is turned on, the elevator cannot walk and is in the state of keeping passengers locked in the car.

The present invention was made to solve the above problems, and its object is to provide an elevator control device that can start the elevator after recognizing that the car door is completely closed, and can always confirm the position of the car door even when the elevator is running. According to the state, the operation control is carried out, and the service of sending passengers to the destination floor safely is provided.

According to the elevator control device of claim 1 of the present invention, it is equipped with a first switch whose contact is closed when the elevator car door approaches the closing end, and a second switch whose contact is closed when the above-mentioned car door reaches the closing end. The control device for controlling the starting and running of the elevator by the state signal of the two switches is characterized in that it is also equipped with: when the first and second switches are in the closed state together, the elevator's starting possible signal is output to the door closing function of the above-mentioned control device. Finished identifying the device.

In addition, the elevator control device according to claim 2 is characterized in that it is equipped with: when the first and second switches are both in the closed state, the door-closing completion recognition device that outputs the start possibility signal of the elevator to the above-mentioned control device; After the elevator is started, even if the second switch is turned off, the operation possible signal for keeping the elevator running is output to the operation continuation maintaining means of the above-mentioned control device.

In addition, the elevator control device according to claim 3 is characterized in that it is provided with: when the first and second switches are both in the closed state, the door-closing completion recognition device that outputs the start possibility signal of the elevator to the above-mentioned control device; During operation, only when the above-mentioned second switch is in the off state, the door-closing failure detection device outputs a door-closing failure detection signal; counts the door-closing failure detection signal and sends the door-closing abnormality signal to the monitoring office when the count value reaches a predetermined value device.

In addition, the control device according to claim 4 is characterized in that it is equipped with: when the first and second switches are both in the closed state, the elevator start possible signal is output to the door closing completion recognition device of the control device; A switch cut-off control device that disables the actual state signal from the second switch and only validates the state signal of the first switch when the cut-off setting is input, and outputs the state signal of the first switch as the state signal of the second switch.

In addition, the elevator control device according to claim 5 is characterized in that it is equipped with: when the first and second switches are both in the closed state, the door-closing completion recognition device that outputs the start possibility signal of the elevator to the above-mentioned control device; When the above-mentioned second switch is turned off for more than a predetermined time after starting, the elevator stops running and outputs a stop command at the nearest floor to the stop command device at the nearest floor of the control device.

Moreover, the elevator control device according to claim 6 is characterized in that it is equipped with: when the state signal of the second switch becomes a state opposite to the state signal of the first switch when the car door is closed, an abnormality detection signal is output. An abnormal detection device for the signal; output the re-opening command of the car door to the re-opening command device of the above-mentioned control device according to the abnormal detection signal.

Further, the elevator control device according to claim 7, wherein in the elevator control device according to claim 6, the abnormality detecting device is configured such that the second switch is turned on after the first switch is closed when the car door is closed. If it is not closed within a predetermined time, an abnormality detection signal will be output.

Moreover, the elevator control device according to claim 8 is characterized in that, in the elevator control device according to claim 6, when the car door is closed, the first switch is not in the closed state and the second switch is closed, then The abnormality detection means outputs an abnormality detection signal.

In addition, the elevator control device according to claim 9, further comprising an abnormality detection function for detecting an abnormality when the first switch is closed when the car door is closed and the second switch is not closed within a predetermined time period. device; output the re-opening command of the car door to the re-switching command device of the above-mentioned control device according to the abnormality detection signal; count the re-switching command according to the input of the above-mentioned abnormality detection signal and when the count value reaches a predetermined value, the elevator's forced The start command is output to the forced start command means of the above-mentioned control device.

Further, the elevator control device according to claim 10, further comprising: when the state signal of the second switch is in the opposite state to the state signal of the first switch when the car door is closed, an abnormality detection signal is output. Detection device; output the re-opening command of the car door to the re-opening command device of the above-mentioned control device according to the abnormal detection signal; count the above-mentioned abnormal detection signal and report the door-closing abnormal signal to the monitoring department when the count value reaches a predetermined value delivery device.

Also, the elevator control device according to claim 11, wherein in the elevator control device according to claim 10, when the first switch is closed when the car door is closed, the second switch does not close within a predetermined time. When closing, the above-mentioned abnormality detection device outputs a first abnormality detection signal, and at the same time, the above-mentioned reporting device reports the first door-closing abnormality signal to the monitoring place according to the first abnormality detection signal.

Also, the elevator control device according to claim 12, wherein in the elevator control device according to claim 10, when the car door is closed, the first switch is not closed, and the second switch is closed. , then the above-mentioned abnormality detection device outputs the second abnormality detection signal, and at the same time, the above-mentioned reporting device reports the second door-closing abnormality signal to the monitoring office according to the second abnormality detection signal.

In the elevator control device according to claim 1 of the present invention, when the first switch whose contact is closed when the car door approaches the closing end and the second switch whose contact is closed when the car door reaches the closing end are both in the closed state, After the start possible signal of the elevator is output from the door-closing completion recognition device to the control device, the elevator is started, so that passengers can be safely transported to the destination floor.

In addition, in the elevator control device according to claim 2, through the operation continuation maintenance device, after the elevator is started, even if the second switch is open, the operation possibility signal for the elevator to continue to run is output to the above-mentioned control device, so that When the second switch is disconnected for whatever reason during operation, the elevator will not be stopped in an emergency, and the service will continue.

In addition, in the elevator control device according to claim 3, during the running of the elevator, only when the second switch is in the off state, the door-closing failure detection device outputs a door-closing failure detection signal, and the count value of the door-closing failure detection signal When the predetermined value is reached, the abnormal door closing signal is reported to the monitoring place through the reporting device, so that the door closing failure in the state where only the second switch is turned off can be detected in the monitoring place.

In addition, in the elevator control device according to claim 4, the switch cut-off control device is used to disable the actual state signal of the second switch, and only the state signal of the first switch is valid, and the state signal of the first switch is used as the second switch. The status signals of the two switches are output, so that the installation operation mode, the group management control operation mode and the normal operation mode can be cut off and controlled.

In addition, in the elevator control device according to claim 5, after the elevator starts, the operation of the elevator is interrupted when the second switch is off for more than a predetermined time through the nearest floor parking instruction device, and the nearest floor that stops at the nearest floor is stopped. The parking command is output to the above-mentioned control device, so even if only the second switch is turned off, the elevator will not be stopped in an emergency, so that passengers can be transported to the nearest floor safely.

In addition, in the elevator control device according to claim 6, when the car door is closed by the abnormality detection device, if the state signal of the second switch is in the opposite state to the state signal of the first switch, an abnormality detection signal is output, And according to the abnormal detection signal, the re-opening command device outputs the car door re-opening command to the above-mentioned control device, so the foreign matter that caused the above-mentioned abnormal detection signal is removed by means of the vibration caused by the re-opening of the car door, so that the elevator can start. .

Furthermore, in the elevator control device according to claim 7, when the elevator control device according to claim 6 is closed, when the first switch is closed and the second switch fails to close within a predetermined time, then The above-mentioned abnormality detection device outputs an abnormality detection signal, so when there are foreign objects such as small stones or garbage between the car door and the front pillar, the foreign objects that cause the above-mentioned abnormality detection signal are removed by the vibration caused by the re-opening and closing of the car door. , so that the elevator can start.

In addition, in the elevator control device according to claim 8, in the elevator control device according to claim 6, when the car door is closed, the first switch is not closed and the second switch is closed, and the abnormality detection device outputs Therefore, in the state of foreign matter such as garbage attached around the second switch, the vibration caused by the re-opening and closing of the car door removes the foreign matter causing the above-mentioned abnormal detection signal, so that the elevator can be started.

Moreover, in the elevator control device according to claim 9, when the car door is closed, if the second switch is not closed within a predetermined time after the first switch is closed, the abnormality detection device outputs an abnormality detection signal, and when the The abnormal detection signal outputs the re-opening command of the car door to the re-opening command device of the above-mentioned control device. , so only confirming that the car door is closed by the state that the first switch is off can give priority to improving elevator service.

In addition, in the elevator control device according to claim 10, when the car door is closed, although the state signal of the second switch is in the opposite state to the state signal of the first switch, the abnormality detected by the abnormality detection means The signal is output by the re-opening instruction device to the above-mentioned control device to re-open the car door. However, when the count value of the above-mentioned abnormal detection signal reaches a predetermined value, the abnormal door-closing signal is also reported by the reporting device. The door is sent to the monitoring office, thus notifying the door-closing abnormal situation caused by the second switch opening abnormality or closing abnormality.

In addition, in the elevator control device according to claim 11, in the elevator control device according to claim 10, when the car door is closed, if the second switch is not closed within a predetermined time after the first switch is closed, the The above-mentioned abnormality detection device outputs the first abnormality detection signal, and at the same time, the first door-closing abnormality signal is reported to the monitoring place through the above-mentioned reporting device according to the input of the above-mentioned first abnormality detection signal, so that the second switch is recognized as being abnormally disconnected. The abnormal closing of the door is brought about.

In addition, in the elevator control device described in claim 12, in the elevator control device described in claim 10, when the car door is closed, the first switch is in the non-closed state and the second switch is closed, then by the The abnormality detection device outputs the second abnormality detection signal, and at the same time, through the above-mentioned reporting device, according to the input of the second abnormality detection signal, the second abnormal door closing signal is reported to the monitoring place, thus notifying and identifying the abnormality caused by the second switch closing abnormality. Abnormal closing of the door.

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a block diagram of the overall structure of an elevator control device according to Embodiment 1 of the present invention;

Fig. 2 is a block diagram of the overall structure of the elevator control device according to Embodiment 2 of the present invention;

Fig. 3 is the side view near the car door of existing example;

Fig. 4 is a side view of the vicinity of the car door of the conventional example and the present invention.

Example 1

Next, an embodiment of the present invention will be described with reference to FIG. 1 and FIG. 4 .

Fig. 1 is a structural block diagram of an elevator control device according to Embodiment 1 of the present invention, and its mechanical structure is the same as that shown in Fig. 4 .

In Fig. 1, 1 is the identification device for closing the door. The device detects that the car door 21 is fully closed by detecting the state signal of the first switch 22 that is close to the closed end of the car door 21 shown in Figure 4 and the state signal of the second switch 28 that detects that the above-mentioned car door 21 is completely to the closed end. When closed, an elevator start possible signal is output to the control circuit described later. In the same figure, the control circuit 16 recognizes that the car door 21 is completely closed by the output of the start possible signal, and the elevator starts to start.

2. Keep the device for the continuation of operation. This device is used to keep the signal state when the above-mentioned second switch 28 close signal is also instantaneously output after the above-mentioned first switch 22 closing signal is output, and ignore the subsequent signal state of the second switch 28, thereby preventing the second switch 28 from The poor contact of the elevator will cause the repetition of the intermittent state of the signal, resulting in poor door closing recognition, and will output the operation possible signal that keeps the elevator running to the control circuit. For example, when the car door 21 is in the closed state, for some reason only when the above-mentioned second switch 28 is turned off, the elevator can continue to provide services without emergency stop.

3 is a door closing failure detection device that outputs a failure detection signal only when the second switch 28 is in an open circuit state during elevator operation. 4 is a door-closing failure detection counting device that counts the door-closing failure detection signal and outputs a door-closing abnormality signal when the count value reaches a predetermined value. The above-mentioned abnormal door closing signal is output to the abnormal signal reporting device 11 described later, and the abnormal situation that occurs is reported by the device 11 to monitoring places such as the manager's office or maintenance company through a public line not shown.

Also, 5 and 6 are abnormal detection devices that respectively output abnormal detection signals when the state signal of the second switch 28 and the state signal of the first switch 22 are in opposite states when the car door 21 is closed. For example, after the first switch 22 is closed, the second switch 28 fails to close after a predetermined time, then the second switch 28 disconnects the abnormality detection device 5. 24, when there are foreign objects such as small stones or garbage, an abnormality detection signal indicating abnormality is output. On the other hand, when the second switch 28 is still in the closed state although the first switch 22 is in the open state, the closing abnormality detection device 6 of the second switch 28 may be attached to the second switch 28 according to the closing failure of the second switch 28. Foreign matter such as garbage around the switch of 28 outputs an abnormality detection signal indicating abnormality.

7 is a re-switching instruction device, which instructs the car door 21 to open once according to the abnormality detection signal input by the abnormality detection device 5 of the above-mentioned second switch or the abnormality detection device 6 of the second switch, and then again after a predetermined time. Command the car door 21 to close. For example, even if there are foreign objects such as small stones or garbage between the car door 21 and the front pillar 24 or the vicinity of the switch of the second switch 28 is in a state where foreign objects such as garbage are attached, by opening and closing the car door 21 again in this switch, The resulting vibration can remove the foreign matter, and the elevator can start when the foreign matter has been removed.

8 is counting the re-switching command according to the abnormality detection signal of the disconnection abnormality detection device 5 of the above-mentioned second switch and the re-switching command of the above-mentioned re-switching command device 7, and when it is confirmed that the count value reaches a predetermined value, the elevator will be forced to start The forced start signal is output to the forced start instruction device of the control circuit 16 described later. For example, if there are foreign objects such as small stones or garbage between the car door 21 and the front pillar 24, even if the car door 21 is opened and closed again, there are still foreign objects that cannot be removed, or when the second switch 28 is off. In the event of a failure, if the first switch 22 is closed, the car door 21 is substantially closed and there is no danger, so the device 8 is effective when priority is given to improving elevator service.

9 and 10 respectively count the abnormal detection signal of the above-mentioned second switch opening abnormal detection device 5 or the abnormal detection signal of the above-mentioned second switch closing abnormal detection device 6 and output the door closing abnormal signal to The counting device of the abnormal signal reporting device 11 described later. Even if the door opening and closing operation of the car door 21 is performed using the door opening and closing command of the door opening and closing instruction device 7, and the abnormality detection signal of the second switch opening abnormality detection device 5 is still above the predetermined value, due to the presence of the second switch 28 The possibility of failure is disconnected, so the door closing abnormal signal of the second switch disconnecting abnormal counting device 9 is output to the abnormal signal reporting device 11, requesting elevator maintenance. Equally, when the abnormality detection signal of the second switch closing abnormal detection device 6 reaches more than the predetermined value, because there is the possibility of closing failure of the second switch 28, so the door closing abnormal signal of the second switch closing abnormal counting device 10 is output to the abnormal The signal reporting device 11 requests elevator maintenance.

11 is an abnormal signal reporting device, which respectively inputs the abnormal door closing signal of the above-mentioned poor door closing detection device 4, the abnormal door closing signal of the above-mentioned second switch opening abnormal counting device 9 and the door closing abnormality of the above-mentioned second switch closing abnormal counting device 10 Signals, identify these abnormal door closing signals, and report them to monitoring places such as the management personnel room or the maintenance company through the public line not shown in the figure.

Also, 12 is a switch cut-off device, which is used for group management control operation or installation operation of multiple elevators other than normal elevator operation, so that only the above-mentioned first switch 22 is valid, and the above-mentioned second switch 28 should be invalid and cut off, and at the same time regard the state signal of the first switch 22 as the state signal of the second switch 28 for output. For example, when a fault occurs, the elevator car stops between the floors, and then runs to the nearest stop floor for rescue, the device 12 is used to prevent the elevator from being unable to start because the second switch 28 is not closed. 13 is a memory storage setting device for storing and setting the valid or invalid flag of the above-mentioned second switch 28 in the memory 14. For example, its composition method can consider using Electrically Erasable Programmable Read Only Memory (Electrically Erasable Programable Read On-ly Memory, hereinafter referred to as EEPROM) in the memory 14, and the memory storage setting device 13 is used for hand-held Computer, etc., and rewrite the memory 14 by directly connecting the address bus and data bus of the memory 14 to the handheld computer.

The second switch 28 can be easily cut off according to the invalid setting input of the second switch formed by the sign from the later-mentioned memory or from the installed operation mode setting device, for example, in the case of group management control for multiple elevators Although the group management performance is degraded due to the delay from the closing of the first switch 22 to the closing of the second switch 28 for a certain period of time, by ignoring the signal of the second switch 28, the group management performance can be carried out without loss. Serve. Also, according to the group supervisory control device monitoring the congested situation of the elevator, the valid or invalid flag setting of the second switch 28 is stored in the above-mentioned memory 14, and this composition also has the same effect.

15 is an installation mode setting device for setting the installation operation mode during installation, and it can process the second switch 28 as valid or invalid according to the signal of the installation mode setting device 15 . For example, usually when an elevator is installed, dust and rubbish are likely to be generated in the building, which will cause poor contact of the second switch 28, and the possibility of the elevator losing its start is very high. At this time, by means of the above-mentioned installation mode setting device 15, the second switch 28 is temporarily disabled during installation, thereby preventing the elevator from being lost due to carelessness.

Furthermore, 16 is a control circuit for controlling the starting and running of the elevator according to the above composition. It carries out starting control to the elevator according to the starting possible signal from the above-mentioned door-closing completion recognition device 1; continues to keep the elevator running according to the running possible signal from the above-mentioned operation continuation device 2; The car door 21 during starting carries out switch control again; According to the forced start command from above-mentioned forced start instruction device 8, the elevator is forced to start.

Next, the operation of the above configuration will be described.

Now, in the switch disconnecting device 12, by setting the memory 14 or the installation operation mode setting device 15, the status signal of the second switch 28 is set as an effective flag. At this time, the state signal of the first switch 22 and the state signal of the second switch 28 passing through the above-mentioned switch cutting device 12 are input to the door-closing completion recognition device 1, and the door-closing completion recognition device 1 detects that the car door 21 is completely closed. The possible signal is output to the control circuit 16, and by the output of the above-mentioned starting possible signal, the control circuit 16 starts to start the elevator once it confirms that the car door 21 is completely closed.

Therefore, after recognizing that the car door 21 is completely closed, the elevator can be started, and the passengers can be transported to the destination floor safely through normal control thereafter.

However, after the elevator starts, since the operation continuation device 2 will continue to output the operation possible signal of the elevator to the control circuit 16, by ignoring the signal state of the second switch 28 thereafter, it is possible to prevent the second switch 28 from contacting the second switch 28. If the signal intermittent state repeats due to failure or the like, the door-closing recognition failure can be caused, the elevator can continue to run, and the car door 21 is in a closed state. It will cause the elevator to stop in an emergency and continue to provide services.

Again, only when the above-mentioned second switch 28 is in an off state during elevator operation, the poor door closing detection device 3 outputs a door closing failure detection signal, and by the door closing failure detection counting device 4, when the count value of the door closing failure detection signal reaches a predetermined value, then The abnormal door closing signal is output to the abnormal signal reporting device 11, through which the abnormal door closing abnormality is reported to monitoring places such as the manager's room or maintenance company through the public line not shown in the figure.

Also, in the configuration of embodiment 1 shown in FIG. 1, when the above-mentioned car door 21 is closed, when the state signal of the second switch 28 is in the opposite state to the state signal of the first switch 22, for example, after the first switch 22 is closed. , when the second switch 28 is non-closed after a predetermined time, at this time, according to the disconnection fault of the second switch or the state of foreign objects such as small stones or garbage between the car door 21 and the front pillar 24, the second The switch opening abnormality detection means 5 outputs an abnormality detection signal indicating that there is an abnormality. The closing failure of the switch 28 or foreign objects such as garbage attached to the switch of the second switch 28 respectively output an abnormality detection signal indicating an abnormal closing.

And, when outputting the abnormal detection signal of the above-mentioned second switch opening abnormality detection device 5 or the second switch closure abnormality detection device 6, by re-switching instruction device 7, after the command car door 21 is opened once, after a predetermined time passes, command again. The car door 21 is closed, even if there are foreign objects such as pebbles or rubbish between the car door 21 and the front pillar 24 or foreign objects such as rubbish are attached around the switch of the second switch 28, the belt in the middle of the car door 21 is switched again. The incoming vibration can remove the foreign matter, and the elevator can start when the foreign matter has been removed.

Again, at this time, according to the abnormality detection signal of the above-mentioned second switch disconnection abnormality detecting device 6 and the re-switching command of the above-mentioned re-switching command device 7, the re-switching command is counted, and when it is confirmed that the count value reaches a predetermined value, by The forced start instruction device 8 outputs the forced start signal of the forced start elevator to the control circuit 16 . For example, when there are foreign objects such as pebbles or garbage between the car door 21 and the front pillar 24, and the opening and closing of the car door 21 again fails to remove the foreign objects, or the second switch 28 has a disconnection failure. Under normal circumstances, if the first switch 22 is closed, the car door 21 is basically closed, and there is no dangerous operation, so the service of the elevator can be improved first.

And, according to the door opening and closing command of the above-mentioned door opening and closing instruction device 7, even through the door opening and closing operation of the car door 21, when the abnormality detection signal of the second switch opening abnormality detection device 5 is still above the predetermined value, due to the presence of the second The switch 28 is disconnected from the possibility of failure, so the door-closing abnormal signal of the second switch disconnecting abnormal counting device 9 is output to the abnormal signal reporting device 11, requesting elevator maintenance. Equally, when the abnormality detection signal of the second switch closing abnormal detection device 6 is still above the predetermined value, because there is the possibility of the second switch 28 closing fault, so the door closing abnormal signal of the second switch closing abnormal counting device 10 is output to the abnormal The signal reporting device 11 requests elevator maintenance.

Here, the abnormal door closing signal of the above-mentioned poor door closing detection device 4, the abnormal door closing signal of the second switch opening abnormal counting device 9 and the abnormal door closing signal of the second switch closing abnormal counting device 10 are respectively input into the abnormal signal reporting device 11 , and identify these abnormal door closing signals, and report them to the monitoring office of the management personnel room or the maintenance company through the public line not shown in the figure.

Again, the structure of Embodiment 1 shown in Figure 1, except the normal operation of the above-mentioned elevator, for example, when a plurality of elevator group management control operation or installation operation, only the above-mentioned first switch 22 is made effective by the switch disconnecting device 12 , and the above-mentioned second switch 28 should be invalidated and cut off, and at the same time, the state signal of the first switch 22 should be output as the state signal of the second switch 28 . For example, when a certain fault occurs and the car stops between the floors, and then runs to the nearest stop floor to rescue, because the second switch 28 is not closed, the phenomenon that the elevator cannot be started can be prevented.

Also, for example, during group management and control of multiple elevators, although the group management performance will be delayed for some time until the second switch is closed after the first switch 22 is closed, the group management performance can be reduced by ignoring the signal of the second switch 28. Damage group management provides elevator service efficiently. When elevator is installed again, because dust or rubbish are easily produced in the building, the above-mentioned second switch 28 will be caused by such dust or rubbish to be in bad contact, so the possibility that the elevator cannot start is very large. Therefore, by means of the above-mentioned installation mode setting device 15, the second switch 28 is temporarily disabled during installation, so that the phenomenon that the elevator cannot be started due to carelessness can be prevented.

Example 2

Next, FIG. 2 is a block diagram showing the configuration of an elevator control device according to Embodiment 2 of the present invention.

In FIG. 2, 1 to 16 (without 2) represent the same parts as those of Embodiment 1 shown in FIG. 1, and description thereof is omitted. As a new component, 17 is the parking instruction device for the nearest floor. After the elevator starts, when the second switch 28 is turned off for more than a predetermined time, the device 17 is used to interrupt the operation of the elevator and output the parking command on the nearest floor to the control circuit 16. That is, in the prior art example, although the elevator will stop in an emergency only when the above-mentioned second switch 28 is turned off during the elevator operation, in this embodiment 2, since the above-mentioned nearest floor stop instruction device 17 is provided, the elevator runs Even if only the above-mentioned second switch 28 is open circuit, the elevator will not be stopped in an emergency, and the passengers can be safely transported to the nearest non-stop floor. Other than that, other operations are the same as in Embodiment 1.

In summary, according to claim 1 of the present invention, the first switch whose contact is closed when the car door of the elevator is close to the closing end, the second switch whose contact is closed when the above-mentioned car door reaches the closing end, and according to these In the elevator control device such as the control device that controls the starting and running of the elevator by the states of the first and second switches, since the above-mentioned first and second switches are both in the closed state, the start possible signal of the elevator is output to the The door-closing completion recognition device of the above-mentioned control device, so when the first switch and the second switch are both in the closed state, the door-closing completion recognition device outputs the start possible signal of the elevator to the control device to start the elevator, so it has the function of safely moving passengers. The effect of transporting to the destination floor.

Also, according to claim 2, since the door-closing completion identification device that outputs the start possibility signal of the elevator to the above-mentioned control device when the first and second switches are both in the closed state is equipped, after the elevator starts, even the above-mentioned second switch The operation possible signal that makes the elevator continue to run is output to the operation continuation holding device of the above-mentioned control device, so after the elevator starts, the operation that the elevator continues to run even if the above-mentioned second switch is turned off is output by the operation continuation holding device. The operation possible signal is output to the above-mentioned control device, so that the effect is that even if only the second switch is turned off for some reason during operation, the elevator will not be stopped in an emergency, and the elevator service can be continued.

Also, according to claim 3, since the first and second switches are both in the closed state, the door closing completion recognition device that outputs the elevator start possible signal to the control device, only the second switch is off during the elevator operation. The door-closing failure detection device that outputs a door-closing failure detection signal in the state, counts the detection signal of poor door-closing detection and reports the door-closing abnormality signal to the reporting device at the monitoring place when the count value reaches a predetermined value. Therefore, during the operation of the elevator, Only when the above-mentioned second switch is in the off state, the door-closing failure detection device outputs a door-closing failure detection signal, and when the count value of the door-closing failure detection signal reaches a predetermined value, the door-closing abnormality signal is reported to the monitoring place through the reporting device, thus It has the effect of being able to detect that the second switch is in an off state at the monitoring point and that the door is not properly closed.

In addition, according to claim 4, since the first and second switches are both in the closed state, the door closing completion recognition device that outputs the start possible signal of the elevator to the control device is provided, and the second switch is turned off when the switch is cut off. The actual state signal of the switch is invalid and only the above-mentioned first switch state signal is valid and the switch cut-off control device outputs the first switch state signal as the second switch state signal. In the running mode, the above-mentioned second switch is disabled, thereby avoiding the group management performance degradation caused by the failure of the elevator to start due to the misrecognition of poor contact of the second switch or the time delay until the second switch is turned on.

Also, according to claim 5, since the door-closing completion recognition device that outputs the start possibility signal of the elevator to the above-mentioned control device when the first and second switches are closed together is equipped, after the elevator starts, when the second switch is turned off for a predetermined When the time exceeds the time limit, the elevator operation is interrupted and the nearest floor stop instruction is output to the nearest floor stop instruction device of the above-mentioned control device, so that the elevator does not stop in an emergency even when only the second switch is turned off. , can transport passengers safely to the effect of the nearest parking floor.

Also, as claimed in claim 6, since the state signal of the second switch is in the opposite state to the state signal of the first switch when the car door is closed, an abnormality detection device that outputs an abnormality detection signal is provided. The re-opening command of the car door is output to the re-opening command device of the above-mentioned control device, so the vibration caused by the re-opening action of the car door can eliminate the foreign matter causing the above-mentioned abnormal detection signal, and the elevator can be started.

Furthermore, as claimed in claim 7, in the elevator control device according to claim 6, when the car door is closed, if the second switch fails to close within a predetermined time after the first switch is closed, the abnormality detection device outputs Therefore, when there are foreign objects such as small stones or garbage between the car door and the front pillar, the vibration caused by the re-opening and closing of the car door can be used to eliminate the foreign objects that caused the above abnormal detection signal, so that the elevator can starting effect.

Further, according to claim 8, in the elevator control device according to claim 6, when the car door is closed, the second switch is closed while the first switch is not closed, and the abnormality detection device outputs an abnormality detection signal. Therefore, when foreign matter such as garbage is attached around the second switch, the vibration caused by the re-opening action of the car door can be used to eliminate the foreign matter causing the above-mentioned abnormal detection signal, and the elevator can be started.

Furthermore, according to claim 9, since the first switch is closed when the car door is closed, the second switch is not closed within a predetermined time, and an abnormality detection device is provided to detect an abnormality, and the door is re-opened and closed according to the abnormality detection signal. Input to the re-opening command device of the above-mentioned control device, count the re-close command according to the input of the above-mentioned abnormal detection signal and output the forced start command of the elevator to the forced start command device of the above-mentioned control device when the count value reaches a predetermined value, Therefore, only based on the closed state of the first switch, it can be confirmed that the car door is closed, and the effect of preferentially improving elevator service can be obtained.

Furthermore, according to claim 10, since the state signal of the second switch is in the opposite state to the state signal of the first switch when the car door is closed, an abnormality detecting device is provided which outputs an abnormality detection signal, and the abnormality detection signal is set according to the abnormality detection signal. The re-opening command of the car door is output to the re-opening command device of the above-mentioned control device, counts the above-mentioned abnormality detection signal and reports the door-closing abnormality signal to the reporting device at the monitoring place when the count value reaches a predetermined value, so although the The abnormal detection signal of the detection device, the re-opening instruction device outputs the re-opening command of the car door to the above-mentioned control device, so that the car door performs a re-opening action. When the count value of the above-mentioned abnormal detection signal reaches a predetermined value, it is still sent The device reports the door-closing abnormality signal to the monitoring place, thus having the effect of notifying the door-closing abnormality caused by the second switch being abnormally opened or closed.

Further, according to claim 11, in the elevator control device according to claim 10, when the car door is closed, if the second switch fails to close within a predetermined time after the first switch is closed, the abnormality detection The device outputs the first abnormality detection signal, and at the same time, according to the input of the first abnormality detection signal, the reporting device reports the first door-closing abnormality signal to the monitoring office, so it has the ability to report and identify the door-closing abnormality caused by the second switch abnormality. Effects of exceptional circumstances.

Further, according to claim 12, in the elevator control device according to claim 10, when the car door is closed, the first switch is in the non-closed state and the second switch is closed, and the abnormality detection device outputs the second Abnormality detection signal, and according to the input of the second abnormality detection signal, the reporting device reports the second door-closing abnormality signal to the monitoring place, thus having the effect of being able to identify the abnormal door-closing situation caused by the abnormality of the second switch closure.

Claims (11)

1. elevator control gear, first switch of closure when it has elevator cab door near shutdown side, the second switch of closure when above-mentioned car door reaches shutdown side, the control setup of the starting and the operation of elevator being controlled according to the status signal of above-mentioned first and second switches, when being co-located on closure state with above-mentioned first and second switches with elevator initial may signal output to the means of identification that finishes of closing the door of above-mentioned control setup, it is characterized in that, also have:

Even being disconnected the operation that also makes elevator continue to keep moving, above-mentioned second switch behind the elevator starter may continue holding device for the operation of above-mentioned control setup by signal output.

2. elevator control gear as claimed in claim 1 is characterized in that, also has: have only above-mentioned second switch to be in off-state time output that elevator the is in service bad detecting device of closing the door of bad detection signal of closing the door; This close the door bad detection signal counting and the abnormal signal of will closing the door when this count value reaches predetermined value are reported and submitted the device of reporting and submitting to supervision place.

3. elevator control gear as claimed in claim 1, it is characterized in that, also have: effectively and with the status signal of this first switch cut off control setup as the switch of the status signal output of second switch when switch cuts off to make when setting input from the existing condition invalidating signal of above-mentioned second switch and the status signal that only makes above-mentioned first switch.

4. elevator control gear as claimed in claim 1, it is characterized in that, also have: behind the elevator starter above-mentioned second switch disconnect reach the schedule time when above elevator interrupt run and the nearest floor that will be stopped at nearest floor stop the nearest floor stop command device that above-mentioned control setup is exported in instruction.

5. elevator control gear as claimed in claim 1, it is characterized in that, also have: the status signal of above-mentioned second switch became the then abnormal detector of output abnormality detection signal of the state opposite with the status signal of above-mentioned first switch when above-mentioned car door was closed; Car door switch order is again exported to the device of switch order again of above-mentioned control setup according to this anomaly detection signal.

6. elevator control gear as claimed in claim 5 is characterized in that, above-mentioned abnormal detector, and above-mentioned second switch is not closed in the given time behind above-mentioned first switch closure when above-mentioned car door is closed, then the output abnormality detection signal.

7. elevator control gear as claimed in claim 5 is characterized in that, above-mentioned first switch was not in closure state and above-mentioned second switch closure, then above-mentioned abnormal detector output abnormality detection signal when above-mentioned car door was closed.

8. elevator control gear as claimed in claim 5, it is characterized in that, also have and force the starting order device, when above-mentioned car door is closed behind above-mentioned first switch closure above-mentioned second switch not closed in the given time, then above-mentioned abnormal detector detects unusually, force the starting order device switch order again to be counted simultaneously according to this anomaly detection signal of input, when this count value reaches predetermined value to the pressure starting order of above-mentioned control setup output elevator.

9. elevator control gear as claimed in claim 5 is characterized in that, also have to above-mentioned anomaly detection signal counting and when this count value reaches predetermined value the handle abnormal signal of closing the door report and submit the device of reporting and submitting to supervision place.

10. elevator control gear as claimed in claim 9, it is characterized in that, when above-mentioned car door is closed behind above-mentioned first switch closure, above-mentioned second switch is not closed in the given time, then above-mentioned abnormal detector is exported first anomaly detection signal, simultaneously, the above-mentioned device of reporting and submitting is reported and submitted first abnormal signal of closing the door to supervision place according to above-mentioned first anomaly detection signal.

11. elevator control gear as claimed in claim 9, it is characterized in that, when above-mentioned car door is closed, above-mentioned first switch is in not closure state, and above-mentioned second switch closure, then above-mentioned abnormal detector is exported second anomaly detection signal, and the simultaneously above-mentioned device of reporting and submitting is reported and submitted second abnormal signal of closing the door to supervision place according to above-mentioned second anomaly detection signal.

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