JPH0569359B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a remote control system for remotely controlling a load by connecting a central control device and a terminal device with a pair of signal lines, and time-division multiplexing transmission of control data, monitoring data, etc. It relates to a supervisory control system.

[Background technology] Conventionally, as this type of remote monitoring and control system,
A pair of signal lines connects the central control unit, a monitoring terminal that monitors the switch status, and a control terminal that controls the load, and transmits address data that accesses each terminal, control data that controls the load, and The central controller sends a transmission signal that transmits a return period setting signal that sets the return period from the terminal,
Data is time-division multiplexed between the central control unit and each terminal, and a monitoring terminal is provided to monitor the pattern switch that collectively controls multiple loads in a pattern, and pattern control data is input. Some devices were equipped with a pattern setting terminal that had a data input section and sent the input pattern control data back to the central control device. However, in such conventional examples, the data input section for inputting pattern control data is provided with a load selection switch corresponding to each load connected to a large number of control terminals, so the number of loads increases. When the number of load selection switches increases, a large number of load selection switches are required, resulting in a complicated configuration and large size, as well as an increase in cost. For example, if it is possible to provide 64 control terminals that each control four loads,
In addition to the data set switch and the data return switch, 256 (64 x 4) load selection switches are required, which increases the size of the switch panel and increases the cost.

[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to simplify the configuration of a data input section for inputting pattern control data, thereby reducing the size and cost. The object of the present invention is to provide a remote monitoring and control system that can achieve the desired goals.

[Disclosure of the Invention] (Structure) The present invention connects a central control device, a monitoring terminal device that monitors the switch status, and a control terminal device that controls the load through a pair of signal lines, and connects each terminal device. The central control unit sends a transmission signal that transmits address data to be accessed, control data to control the load, and a return period setting signal to set the return period from the terminal, and the data is exchanged between the central control unit and each terminal. A monitoring terminal device is provided to monitor a pattern switch that performs time-division multiplex transmission of the pattern control data on multiple loads at once, and a data input section for inputting pattern control data is provided. In a remote monitoring and control system that is equipped with a pattern setting terminal that sends pattern numbers back to a central control device, a number setting switch that sets a pattern number and a control terminal that is divided into multiple blocks select a load within a divided block. A load selection switch, a block changeover switch that changes the block to be selected, a display section that displays the channel number of the control terminal of the selected block in correspondence with the load selection switch, and a block changeover switch that changes the block to be selected. The data input section is formed by a data set switch that sequentially stores the data stored in the data storage section, and a data return switch that returns the data stored in the data storage section to the central controller as control data corresponding to the pattern number. It is something.

(Function) The present invention divides the control terminal into a plurality of blocks, provides a load selection switch for selecting each load of the divided control terminal, and switches the selected block with the block selection switch. The channel number of the block is displayed on the display in correspondence with the load selection switch, and the data selected by the load selection switch is stored, so the load selection switch can be activated according to the number of block divisions (M). (1/M of the conventional example), the configuration of the data input section is simplified, and miniaturization and cost reduction can be achieved.

Embodiment FIG. 1 is a diagram showing an example of the configuration of a remote monitoring and control system according to the present invention, in which a central control device 1, a plurality of monitoring terminals 2 and control terminals 3 each having a unique address set therein. are connected by a pair of signal lines 4, and the transmission signal Vs sent from the central controller 1 to the signal line 4 is as shown in Fig. 2a.
Start pulse signal ST indicating the start of signal transmission, mode data signal MD indicating the signal mode, address data signal AD for calling terminals 2 and 3, load
A bipolar (±24V) time division multiplexed signal consisting of a control data signal CD that controls _L1 to _L4 , a checksum data signal CS, and a return standby signal WT that sets the return signal period from the terminals 2 and 3. Data is transmitted using pulse width modulation. In each terminal device 2, 3, when the address data of the transmission signal Vs received via the signal line 4 matches its own unique address data, it takes in the control data of the transmission signal Vs, and returns the transmission signal Vs. The monitoring data signal is synchronized with the standby signal WT as a current mode signal (a signal sent by short-circuiting the signal lines 4 through an appropriate low impedance).
It is now being sent back as a. The central control device 1 also includes a dummy signal transmitting means that always sends out a dummy transmission signal Vs in which the mode data signal MD is in a dummy mode, and one of the monitoring terminals 2.
Interrupt processing means is provided for detecting the interrupt generating terminal device 2, accessing the terminal device 2, and returning monitoring data when the interrupt signal Vi as shown in FIG. There is. On the other hand, the monitoring terminal 2 has switches S ₁ to _{S 4}
When there is a monitoring input due to the operation of
Generates an interrupt signal Vi in synchronization with the start pulse signal ST of the dummy transmission signal Vs, and returns its own unique address data in synchronization with the return standby signal WT of the transmission signal Vs in address confirmation mode from the central controller 1. an interrupt generating means for
Data return means is provided for returning monitoring data corresponding to the monitoring input when the transmission signal Vs of the interrupt access mode in response to an interrupt is transmitted from the central control device 1. In addition, in the central control device 1, the monitoring terminal 2 is connected to the central control device 1.
Control terminal 3 based on the monitoring data sent back to
The controller 3 creates control data to be transmitted to the control terminal 3 and also transmits it to the control terminal 3 to control the loads L ₁ to L ₄ . Note that the control terminal 3 installed in the distribution board 6 or relay control board 6a
The distribution board has the agreed dimensions, and its control output controls a remote control relay 5 for load control (a latching relay that can also be turned on and off using a hand switch). ing.

FIG. 3 shows the circuit configuration of the control terminal device 3. The control terminal device 3 includes a power supply circuit 10 that forms a circuit power supply from a transmission signal Vs transmitted via a signal 4, and a power supply circuit 10 that generates a circuit power supply from a transmission signal Vs transmitted via a signal 4. A signal processing circuit 11 receives and processes the signal, and forms and transmits a return signal _VB ; an address setting section 12 that sets a unique address; and a 4-bit control data bit that controls each of the four load circuits. A circuit number setting unit 13 that selects a predetermined bit from among them, a drive circuit 14 that drives an output relay circuit 15 for load control, and a monitoring circuit 16 that monitors the operating state.
The signal processing circuit 11 detects a match between the address data of the transmission signal Vs and the unique address, takes in the control data when the address match is detected, and outputs the control data based on a predetermined control bit.
Vc and drives the output relay circuit 15, and also forms return monitoring data based on the monitoring input input via the monitoring circuit 16 and sends it back to the central controller 1 using a current mode return signal _VB . I'm starting to do that. The configuration of the monitoring terminal 2 is almost the same as the configuration of the control terminal 3, and the operation status monitoring circuit 16 monitors the switch status, and the output relay circuit 15 is replaced with an operation display. It is equipped with a light emitting diode. In addition, the monitoring terminal 2 and the monitoring terminal 3
To set the unique address, the lower 6 bits of the 8-bit address data are used as a user setting section that can be set as appropriate by the user, and the upper 2 bits are set as a manufacturer setting that indicates the type of terminal (monitoring, control). By simply setting the user setting section of the unique address of the monitoring and control terminals 2 and 3 to the same value, both terminals 2 and 3 can be easily made to correspond. Based on the monitoring data returned from the monitoring terminal 2, the load connected to the control terminal 3 can be controlled.

The wireless relay terminal 25 also includes a wireless transmitter 19 that transmits an optical wireless signal, and a wireless receiver 24 that receives the optical wireless signal.
The external interface terminal 26 is a terminal that relays data of a wireless system composed of a signal line 23 and a signal line 23, and an external interface terminal 26 is a terminal that performs data transmission with an external control device 27.

FIG. 4 shows a switch panel of the pattern setting terminal 7 which is equipped with a data input section 8 for inputting pattern control data and returns the input pattern control data to the central control device 1. , a load selection switch SWa that selects each load of the control terminal 3 divided into multiple blocks,
SWa′、SWb、SWb′、SW ₁ a～SW ₁ d、...
SW ₁₆ a to SW ₁₆ d, a block change switch SW ₂₀ that changes the selected block, a data set switch SW ₂₁ that stores the selected data, and a data return switch SW that sends the stored data back to the central controller 1. ₂₂ , and a data transfer switch SW ₂₃ for transferring pattern control data from the central controller 1 to the pattern setting terminal 7. In the figure, number setting switches SWc and SWc' are
It is a push button switch that inputs by pattern number or group number up or down, and mode changeover switch SW ₂₄ is used for initial setting mode, confirmation,
It is a slide switch that switches between change mode and normal mode, and clear switch SW ₂₅ is a push button switch that clears the input data (load number (channel number in the illustrated example) displayed on display sections DP ₁ to DP ₁₆ ). Switches _SW26 , _SW27 , and _SW28 are a total pattern switch, a floor pattern switch, and a group switch that set the type of pattern control data. Also, all-on switch
SW ₃₀ , all off switch SW ₃₁ , and all outside area switch SW ₃₂ are push button switches that allow specific data input when setting a total pattern with one touch. In addition, the display section DP ₁
~DP ₁₆ has the load number (channel number) 0 of the control terminal 3 divided into 4 blocks.
~15ch, 16~31ch, 32~47ch, 48~63ch are now shown.

FIG. 5 shows the configuration of the pattern setting terminal 7, which includes a transmission signal transmitting/receiving section 70 that receives time division multiplexed transmission signals transmitted via the signal line 4, and a transmission signal transmitting/receiving section 70 that receives signals in an electrically insulated state. Insulating sections 71a and 71b made up of photocouplers for transmitting data, a central control section 72 that performs signal processing, a data storage section 73 that stores input data or confirmation pattern control data sent from the central control device 1, and data It is formed of I/O sections 74a to 74c that control the input/output of The data is sent to the display control section 8b. Also,
The data stored in the data storage section 73 is
The output data can be outputted as appropriate via the O section 74b, and in the embodiment, the output data can be printed out using a data output section 75 consisting of a printer. Note that each circuit other than the transmission signal transmitting/receiving section 70 of the pattern setting terminal 7 is supplied with power from a terminal power source 76.

The operation of the embodiment will be described below. now,
When setting pattern control data, set mode selector switch SW ₂₄ to initial setting mode,
Input the type of pattern control using switches SW ₂₆ to _{SW 28} . Next, number setting switch SWc,
Set the pattern number corresponding to the pattern switch with SWc′, select the block with block changeover switch _SW20 , and switch
The terminal number (channel number) of the control terminal 3 is set by SWa, SWa′, SWb, SWb′, and the switches SW _{1 a} to SW ₁ d, ... SW ₁₆ a
The load circuit number to be turned on for each control terminal 3 is set using _SW16d , and the pattern control data is stored in the data storage section 73 by pressing the set switch _SW21 . Pattern control data is input by repeatedly performing the above-described setting operation. By the way, when selecting the load to be turned on as described above, the number of the control terminal 3 of the block selected by the block changeover switch _SW20 is displayed on the display sections _DP1 to _DP16 . That is, when the first block is selected by operating the block changeover switch SW ₂₀ , the light emitting diodes corresponding to the terminal numbers 0 to 15 are lit and the load circuits (4) of the terminal numbers 0 to 15 are turned on. circuit) switches SW ₁ a to SW ₁ d, ... SW ₁₆ a to
The items that can be selected by SW ₁₆ d are displayed, and when the block changeover switch SW ₂₀ is pressed to switch to the second block, the terminal numbers 16 to 31 are displayed.
The corresponding light emitting diode lights up and the terminal number is displayed.
Load circuits 16 to 31 are switches SW ₁ a to SW ₁ d...
It is displayed to indicate that it can be selected by SW ₁₆ a to SW ₁₆ d. In addition, the block changeover switch
The same applies when switching to the third and fourth blocks by pressing SW ₂₀ .

The pattern control data set as described above is sent back to the central controller 1 via the transmission signal transmitter/receiver 70 and the signal line 4 by pressing the data transfer switch SW ₂₂ . The pattern control data is stored in a memory for storing pattern control data.

On the other hand, when confirming or changing the set pattern control data, first press the data transfer switch SW ₂₃ to transfer the data to the central controller 1.
The pattern setting terminal 7 sends out a transmission request signal to transmit the pattern control data stored in the memory of the central controller 1, and the transmission signal transmitting/receiving section 70 receives the data transmitted from the central controller 1. The pattern control data is stored in the data storage section 73. Next, the pattern control data can be confirmed by outputting the data stored in the data storage section 73 to a printer. Furthermore, the pattern control data can be changed by operating the switch section 8a in the same way as in the case of initial setting, and the changed pattern control data can be returned to the central controller 1 by pressing the data transfer switch SW ₂₂ . Then, the pattern control data stored in the memory in the central control device 1 is rewritten, and thereafter, the loads are subjected to batch pattern control based on the changed pattern control data.

It goes without saying that a switch may be provided to print out the pattern control data stored in the data storage section 73 by initial setting or modification.

[Effects of the Invention] As described above, the present invention connects the central control device, the monitoring terminal device that monitors the switch status, and the control terminal device that controls the load through a pair of signal lines, and connects each terminal device with a pair of signal lines. The central control unit sends a transmission signal that transmits address data to access, control data to control the load, and a return period setting signal to set the return period from the terminal, and between the central control unit and each terminal. A monitoring terminal device is provided to monitor a pattern switch that performs time-division multiplex transmission of data and performs pattern control on multiple negative signals at once, and is also provided with a data input section for inputting pattern control data to control the input pattern. In a remote monitoring and control system that is equipped with a pattern setting terminal that sends data back to the central control device, a number setting switch that sets the pattern number and a control terminal that is divided into multiple blocks select the load within the divided block. A load selection switch to switch the block to be selected, a block selection switch to switch the block to be selected, a display section that displays the channel number of the control terminal of the selected block in correspondence with the load selection switch, and a block selection switch to select the block to be selected. The data input section is formed by a data set switch that sequentially stores the data stored in the data storage section, and a data return switch that returns the data stored in the data storage section to the central controller as control data corresponding to the pattern number. The control terminal is divided into a plurality of blocks, a load selection switch is provided to select each load of the divided control terminal, and the selected block is switched by the block selection switch. Since the channel number is displayed on the display in correspondence with the load selection switch, and the data selected by the load selection switch is stored, the number of load selection switches can be reduced according to the number of block divisions (M). 1/M) of the example, and the structure of the data input section is simplified, resulting in miniaturization and cost reduction.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention, and FIG.
FIG. 3 is a block circuit diagram of the main part of the same as the above, FIG. 4 is a front view of the main part of the same, and FIG. 5 is a block circuit diagram of the main part of the same. 1 is a central control unit, 2 is a monitoring terminal, 3 is a control terminal, 4 is a signal line, 7 is a pattern setting terminal, 8 is a data input section, SWa, SWa', SWb,
SWb′, SW ₁ a to SW ₁ d, ... SW ₁₆ a to SW ₁₆ d are load selection switches, SW ₂₀ is a block changeover switch,
SW ₂₁ is a data set switch, and SW ₂₂ is a data transfer switch.

Claims (1)

[Claims] 1 Connect the central control unit, a monitoring terminal that monitors the switch status, and a control terminal that controls the load using a pair of signal lines, and provide address data that accesses each terminal and control data that controls the load. The central control unit sends out a transmission signal that transmits a return period setting signal that sets the return period from the terminal device, and time-division multiplex transmission of data is performed between the central control device and each terminal device. A pattern setting terminal device that is provided with a monitoring terminal device that monitors a pattern switch that performs pattern control of loads all at once, and also has a data input section that inputs pattern control data and returns the input pattern control data to a central control device. In a remote monitoring and control system, a number setting switch sets a pattern number, a load selection switch selects a load in a divided block of a control terminal divided into multiple blocks, and a block switches the block to be selected. A changeover switch, a display unit that displays the channel number of the control terminal of the selected block in correspondence with the load selection switch, and data that sequentially stores data selected by the block changeover switch and the load selection switch in a data storage unit. A remote monitoring and control system characterized in that the data input section is formed by a set switch and a data return switch that causes the data stored in the data storage section to be returned to the central control unit as control data corresponding to a pattern number.