JPH0695783B2 - Remote monitoring controller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a central control unit and a plurality of monitoring and control terminals connected by a pair of signal lines to transmit monitoring data and control data by time division multiplexing. The present invention relates to a remote monitoring control device.

2. Description of the Related Art Conventionally, a remote monitoring control device that performs this kind of load monitoring control includes a conventional central control device and a plurality of monitoring, operating, and control terminals each having a unique address as a pair of signal lines. Control data to access each terminal from the central control unit and receive the monitoring data returned from each monitoring terminal, and to control the load based on the monitoring data to each control terminal. Was supposed to be transmitted.
By the way, in such a remote monitoring control device, when turning on / off all the loads to be controlled at all, it is stored in the central control device as a pattern of the simultaneous on / off mode, and the pattern of the operation terminal for the pattern is used. The pattern was controlled by turning on / off all at once by operating the switch. Therefore, it is necessary to perform an operation such as storing the pattern.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a remote monitoring control capable of simultaneously turning on / off a load to be controlled simultaneously without the need to store a pattern. To provide a device.

DISCLOSURE OF THE INVENTION (Structure) According to the present invention, a central control device and a plurality of operation and control terminals to which unique addresses are set are connected by a pair of signal lines, and each terminal device is connected from the central control device. In the remote monitoring control device, which is accessed as appropriate and is used for time-division multiplexing transmission of load control control data based on the monitor data of the load control operation switch and the monitor data, the simultaneous control mode of the load to be controlled is stored in advance. In addition to having a memory in the central control unit, it is equipped with an operation terminal device that supports simultaneous control, and when receiving operation monitoring data of the operation switches of the operation terminal device, the central control device performs simultaneous control to all control terminal devices. It is possible to provide a remote monitoring control device for time-division multiplex transmission of the control data.

(Embodiment) FIG. 1 is a diagram showing the concept of the remote monitoring and controlling apparatus of the present invention. The remote monitoring and controlling apparatus of the present invention is such that a power line 9 corresponding to a load such as each lighting load 1 from a control panel 6 and a remote The signal line 7 for control is derived and wired in the installation building respectively.
A corresponding lighting load 1 is connected to each power supply line 9, and selector switches 201 and 202 for selectively controlling individual lighting loads 1 to the signal line 7, individual switches 204 for individual control, or groups (patterns). ) Connect the operation terminal 2 equipped with the pattern switch 203 for control and the monitoring terminal for monitoring the input signals of the disaster prevention sensor 501, daylight sensor 502, crime prevention sensor 503, etc. The construction can be done by two-wire wiring so that each floor is provided with a pattern switch 203 for controlling, for example, a group of lighting loads 1 on that floor, and the lighting load 1 on that floor is individually selected. A selector switch 201 or an individual switch 204 for doing so is provided.

FIG. 2 is a wiring diagram showing the remote monitoring and control system in the conceptual block diagram of FIG. 1 in more detail. In the control panel 6, the central control unit 4 and the remote control relay Ry are controlled to control the lighting load 1. A control terminal 3 for on / off control of such a load, a control terminal 3'with a control relay built in for controlling the load, and a transformer T for supplying drive power for the remote control relay Ry.
A signal line 7 is led from the control panel 6 to the outside, and the operation terminal 2 and the monitoring terminal 5 including the pattern switch 203 and the selector switches 201 and 202 are connected to the signal line 7. I am doing it. FIG. 3 shows an overall schematic configuration of one embodiment, which includes a central control unit 4, a plurality of operation terminals 2 having unique addresses, a monitoring terminal 5 and a control terminal 3 (or 3). ′) Is connected by a pair of signal lines 7. The transmission signal Vs sent from the central control unit 4 to the signal line 7 is, as shown in FIG. 4 (a), a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and each terminal device. Address data signal AD for calling, control data signal CD for controlling lighting load 1, checksum data signal CS and each terminal device 2, 3 (or 3 '),
It is a multi-pole (± 24V) time division multiplex signal composed of a return standby signal WT for setting a return signal period from 5, and data is transmitted by pulse width modulation. Each terminal device 2, 3 (or 3 '), 5 takes in the control data of the transmission signal Vs when the address data of the transmission signal Vs received via the signal line 7 and its own unique address data match. At the same time, the monitor data signal is sent back as a current mode signal (a signal sent by short-circuiting between the signal lines 7 via an appropriate low impedance) in synchronization with the return standby signal WT of the transmission signal Vs. . Further, as shown in FIG. 4 (b), which is returned from the dummy signal transmitting means for constantly transmitting the dummy transmission signal Vs to the central control unit 4 and any one of the operation terminal 2 or the monitoring terminal 5. An interrupt signal Vi is received, an interrupt processing means is provided for detecting an interrupt-generating terminal device, accessing the terminal device, and returning monitoring data. On the other hand, the operation terminal device 2 and the monitoring terminal device are provided. When there is a monitoring input in the device 5, the interrupt signal Vi is generated in synchronization with the start pulse signal ST of the dummy transmission signal Vs, and the standby signal WT for returning the transmission signal Vs in the address confirmation mode from the central control unit 4 is received. Corresponding to the monitoring input when the interrupt generating means for returning its own unique address data in synchronization and the transmission signal Vs in the interrupt access mode in response to the interrupt are transmitted from the central control unit 4. Data return means for returning the monitored data is provided, and the control terminal 3 (or 3 ') based on the monitor data returned from the operation terminal 2 and the monitoring terminal 5 to the central controller 4. The control data to be transmitted to is created. Further, the operation terminal 2 has an individual switch 204 for individually controlling the lighting load 1 such as a lighting.
Some include a selector switch 201 or 202 for individually selecting a plurality of lighting loads 1 or 202 and a pattern switch 203 for collectively pattern controlling the plurality of lighting loads 1. Further, the operation terminal device for pattern control has an operation terminal device 2a exclusively for simultaneous ON and simultaneous OFF, and this operation terminal device 2a is assigned a predetermined address, and the operation switch SWa for ON or the operation for OFF is operated. When one of the switches SWb is pressed, the monitoring data for instructing the control target loads to be turned on or off all at once is sent to the central control unit 4. Further, lighting such as an incandescent lamp and a fluorescent lamp is controlled by dimming and turning on and off the lighting load 1, a lighting switch 1 for temporarily turning on the lighting load 1 (30 sec or 300 sec), a lighting load. There is also provided an operation terminal 2 to which a delay switch 207 for delaying the turn-off timing of 1 for a fixed time (30 seconds or 300 seconds) is connected. Furthermore, the sequence setting data such as the output of the timer setting unit 504, the calendar type time switch 505, the indoor EE switch 506, the daylight sensor 502, the disaster prevention sensor 501, and the crime prevention sensor 503 are selectively (previously) set to the monitoring terminal 5. It is designed to input (with the set pattern). The booster 10 inserted in the signal line 7 ensures the attenuation of the transmission signal Vs. Further, the interlocking switch terminal 11 connected to the end of the signal line 7 controls the connection with the signal line 7'of another remote monitoring control device of the same specification. Both signal lines 7,7 'depending on the transmission signal Vs for
If both signal lines 7 and 7'are connected, the system scale increases and the central control unit 4 connects both signal lines 7 and 7 '. This makes it possible to monitor and control the terminals 2 and 5, for example, it is possible to perform wide-range pattern control across both remote monitoring and control devices. The remote control switch 8 is used for the control terminal device 3.
The control output equivalent to the control output of 1 is output, and the remote control relay Ry for load control is controlled by both control outputs, and the lighting load 1 is controlled in parallel. Signal transmission between the operation terminal device 2 and the monitoring input means may be performed using a wireless transceiver.

FIG. 5 is a circuit diagram of a concrete configuration example of the central control unit 4,
The central control unit 4 includes a signal processing circuit 13 including a CPU, a transmission signal generation / reception signal determination circuit 14, and a signal transmission circuit 16
a and the signal receiving circuit 16b, the isolation signal 17a, 17b for insulatingly coupling the transmission signal generating and receiving signal discrimination circuit 14, the signal transmitting circuit 16a and the signal receiving circuit 16b, and the system program and control of the signal processing circuit 13. Terminal device 3,
ROM 1 in which the corresponding address relationship and control data between 3'and the operation terminals 2 and 2a or the monitoring terminal 5 are stored in advance.
5, a RAM 12 for data processing and temporary storage, and clock generators 18a and 18b for creating a clock used for the signal processing circuit 13 and the transmission signal generation and reception signal determination circuit 14, and dummy signals. The transmitting means and the interrupt processing means are realized by the signal processing circuit 13. Further, the signal transmission circuit 16a includes a transmission signal generation and reception signal determination circuit 1
A bipolar transmission signal Vs is formed according to "H" and "L" of the pulse-width-modulated data signal output from 4, and the signal is converted to a constant voltage and sent to the signal line 7.
On the other hand, the signal receiving circuit 16b is adapted to detect a current mode return signal returned from the terminals 2, 2a, 3 (3 '), 5 using the signal line 7 as a current mode signal. Then, the received and detected signal is input to the transmission signal generation and reception signal determination circuit 15 via the isolation circuit 17b.

FIG. 6 is a circuit diagram showing a specific configuration example of the control terminal device 3 that receives the transmission signal Vs from the central control device 4 and controls the remote control relay Ry. The control terminal device 3 sets a unique address. The address setting circuit 20 for detecting the coincidence between the address data of the transmission signal Vs and the unique address is detected, and the control data of the transmission signal Vs transmitted via the signal line 7 is taken in to form the control output Vc and is also monitored. Signal processing for forming return monitor data based on the monitor input from the circuit 21 and returning the monitor data signal as a current mode signal to the central control unit 4 during the return signal period set by the return standby signal WT of the transmission signal Vs. A relay drive that forms a set pulse signal and a reset pulse signal of the remote control relay Ry in accordance with the circuit 22 and "H" and "L" of the control output Vc and also forms a drive signal for driving the remote control relay Ry. The monitoring circuit for inputting the monitoring information indicating the operating state of the circuit 23 and the remote control relay Ry
21, a power supply circuit 24 that obtains power from the transmission signal Vs and supplies the power to each unit, and isolation circuits 25a and 25b. The control terminal 3 is accessed by the central controller 4 when it is accessed. , It takes in the transmitted control data and outputs the drive signal of the remote control relay Ry for turning the lighting load 1 on and off, and also returns the monitoring data indicating the operating state of the remote control relay Ry to the central control unit 4. There is. Here, the unique addresses of the terminals such as the operation terminals 2 and 2a, the monitoring terminal 5 and the control terminal 3 (3 ') are set by setting the lower 6 bits of the 8-bit address data to the user side. The user setting part that can be appropriately set in, and the upper 2 bits are the maker setting part that indicates the type of the terminal device, and the user setting part of the unique address of the terminal device is set to the same value, and the terminal device 2, 2a, 3 (3 '), 5 can be easily corresponded, and connected to the control terminal 3 based on the monitoring data returned from the operation terminals 2, 2a or the monitoring terminal 5 set to the same value. It is possible to control the load such as the lighting load 1 that is being performed.

By the way, a remote control relay Ry for controlling the on / off of the lighting load 1 is connected in series to a latching relay RR having a main contact ra and an auxiliary contact rb which are interlocked as shown in FIG. 7, and an exciting coil L of the latching relay RR. Current switching diodes Da and Db, and a main contact when a set level current of a predetermined level is applied to the exciting coil L from the AC power supply AC stepped down by the transformer T through the diode Da for a predetermined time. When ra turns on and power is supplied to the lighting load 1, the auxiliary contact rb reverses and the exciting coil L receives the diode Db.
Are switched and connected, while the diode Db
When a reset current flows from the AC power source AC to the exciting coil L via the main contact ra, the power supply to the load 7 is stopped, and the auxiliary contact rb is reversed to cause the diode Da in the exciting coil L. It is designed to be switched and connected. Therefore, the relay drive circuit 23 of the control terminal 3 sets the latching relay RR of the remote control relay Ry to the on side to turn on the lighting load 1, and conversely resets the latching relay RR to the off side to turn on the lighting load 1. It is composed of a circuit that switches the direction of the exciting current so as to turn it off. In this case, since the remote control relay Ry is formed by using the latching relay RR, it can be controlled by the remote control switch 8 that generates a signal equivalent to the set signal and the reset signal output from the relay drive circuit 23. , Lighting load 1
Is controlled by the control data transmitted from the central control unit 4 via the signal line 7 and the control terminal 3 and the control output of the remote control switch 8. Although only the control output for controlling one remote control relay Ry is shown in the figure, in the embodiment, the signal processing circuit 23 outputs the control output for controlling each of the four remote control relays Ry. Remote control switch 8 is push button switch SW
_It is composed of a set and reset signal generation circuit including ₀ and diodes Da ′ and Db ′, and an on / off display circuit in which light emitting diodes LDa and LDb and diodes Da ″ and Db ″ are connected in series. The terminal device for controlling the built-in relay instead of controlling the remote control relay Ry is the control terminal device 3 ', which is basically the same as the control terminal device 3.

As shown in FIG. 8, the operation terminal device 2 is built in each selector switch 201, 202, 204 or the main circuit portion of the pattern switch 203 (disposed on the back surface of the front panel). Each selector switch 201,202,204
Alternatively, the switch operating state of the pattern switch 203 or the like is taken into the monitoring circuit 21 'and returned as monitoring data, and the operating condition of the corresponding load or load pattern is provided corresponding to each switch based on the taken control data. The light emitting diode LED is driven by an LED driver circuit 26, which basically operates in the same manner as the control terminal device 3, and includes a power supply circuit 24 'and an address setting circuit 20'.

By the way, in the present invention, the operation terminal device 2a for simultaneous ON / OFF described above is provided as the operation terminal device, and basically the same as the operation terminal device 2 except that the unique address is predetermined. It is composed. On the other hand, when the central control unit 4 receives the monitoring data from the address of the operating terminal 2a, it stores the program data in the ROM 14 in advance, which defines the corresponding relationship of the simultaneous ON or simultaneous OFF mode. When the monitoring data from the address is received, the simultaneous ON or simultaneous OFF mode is set based on the data, and all the control terminals 3 to which the controlled load is connected are sequentially accessed and connected. Control data for turning on or off a load such as the lighting load 4 is transmitted.

The operation of the embodiment will be specifically described below with reference to the flowcharts shown in FIGS. 9 and 10. Now, when the central control unit 4 is powered on and the monitoring control operation is started, the central control unit 4 first sets the control terminals 3, 3 '
To check the load control status of each control terminal 3, 3 ', and then sequentially access each operation terminal 2, 2a to correspond to the light emitting diode LED provided for each operation. The operating state of the lighting load 1 is made to match. Here, in the operation terminal 2 to which the pattern switch 203 is connected, if the load state matches the set pattern, the corresponding light emitting diode
Turn on the LED. Similarly, in the operation terminal 2a provided exclusively for simultaneous control, in the case of simultaneous off and simultaneous on load conditions, the corresponding light emitting diode LED is turned on and displayed, and the simultaneous on and simultaneous off patterns are established. If not, turn off these light emitting diode LEDs.

Next, the dummy signal transmitting means of the central control unit 4 accesses an empty address other than the unique address set in the operating, controlling, or monitoring terminals 2, 2a, 3 (3 '), 5. The dummy transmission signal Vs is sent to the signal line 7. In the normal state in which the dummy transmission signal Vs is constantly transmitted in this way, the address match cannot be obtained between the terminals 2, 2a, 3, 3 ', 5 so that the data transmission with the central control unit 4 is performed. It stands by without performing. When a monitoring input is input from any one of the operating terminals 2, 2a or the monitoring terminal 5 from the monitoring input means, for example, a switch for turning on the lighting load 1 is pressed to operate the operating terminal 2 When an ON operation signal is input to the monitoring input terminal of the
In the interrupt generation means formed by the signal processing circuit 22 of, the interrupt signal Vi is immediately generated, and the dummy transmission signal Vs
The signal is sent to the signal line 7 in synchronization with the start pulse signal ST. The interrupt processing means of the central control unit 4 detects the interrupt generating terminal 2 when the interrupt signal Vi from the operating terminal 2 is received.
Is transmitted and the transmission signal Vs in the address confirmation mode for sending back the address data is transmitted. The address confirmation mode transmission signal Vs is received by the interrupt generation terminal device 2, and the interrupt generation means of the interrupt generation terminal device 2 synchronizes with the return standby signal WT of the address confirmation mode transmission signal Vs to uniquely identify itself. Return address data. The interrupt processing means of the central control unit 4 which has received the returned unique address data transmits the transmission signal Vs in the interrupt access mode to the specified interrupt terminal 2.

Next, in the data returning means of the interrupt generation terminal device 2, when the transmission signal Vs for interrupt access is received,
The monitoring data corresponding to the monitoring input is returned to the central controller 4 in synchronization with the return standby signal WT. The monitoring data returned from the interrupt generating terminal 2 to the central control unit 4 in this way is signal-processed by the signal processing circuit 13 of the central control unit 4, and the control data for controlling the lighting load 1 is created and handled. The transmission signal Vs for accessing the control terminal 3 is transmitted. In the control terminal device 3 that has received the transmission signal Vs, the remote control relay 6 is controlled based on the transmitted control data to turn the lighting load 1 on and off, and the monitoring data indicating the control state of the lighting load 1. Is returned to the central control unit 4. The central control unit 4 sequentially accesses the operation terminals 2 and 2a based on the monitoring data returned from the control terminal 3 to control lighting and extinction of the light emitting diode LED of each operation display to control the corresponding illumination. The display is updated to the operating state of the load 1, the series of supervisory control operations are terminated, and the state returns to the standby state in which the dummy transmission signal Vs is constantly transmitted. If the interrupt-generating terminal device is an operation terminal device 2a that supports simultaneous control, the central controller 4 determines whether the monitoring data is from the simultaneous-on operation switch SWa or the simultaneous-off operation switch b. Then, the simultaneous ON mode or the simultaneous OFF mode is set, and all the control terminals 3 are sequentially accessed to simultaneously turn on or off the lighting load 1 as a load.

As described above, in the embodiment, the central control device 4 transmits the dummy transmission signal and is always in the interrupt standby state, and the operating or monitoring terminal device 2, 2a or 5 has the monitoring input. When the interrupt signal is sent, the monitoring data is sent back from the interrupt-generating terminal immediately in response to the interrupt signal, so if the number of terminals 2, 2a, 3, 3 ', 5 increases. Also, the responsiveness can always be improved regardless of the input timing of the monitoring input.

[Advantages of the Invention] In the remote control monitoring apparatus configured as described above, the present invention provides a central control unit with a memory in which a simultaneous control mode of a load to be controlled is stored in advance, and an operation terminal corresponding to a simultaneous operation. The control data of the simultaneous control is transmitted from the central control device to all the control terminals at the time of receiving the operation monitoring data of the operation switch of the control terminal, so that the load can be set without setting the pattern. Simultaneous control can be performed, the trouble of pattern setting can be saved, and since the operation terminal device only needs to be connected to the two signal lines sent from the control panel, wiring construction is easy, and in addition, the same address can be used. If the operation terminal is connected to the signal line, there is an effect that simultaneous control can be performed at many places.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing the concept of the device of the present invention, FIG. 2 is a schematic overall wiring diagram of the above remote monitoring control system, and FIG. 3 is a block circuit diagram showing the schematic configuration of one embodiment of the present invention. FIG. 4 is an explanatory diagram of a transmission signal used in the same as above, FIGS. 5 to 8 are block circuit diagrams of main parts in the same, and FIGS. 9 and 10 are operation explanatory diagrams in the same. 1 is a lighting load, 2 and 2a are operation terminals, 3 and 3'are control terminals, 4 is a central control unit, 5 is a monitoring terminal, 6 is a control panel, 7 is a signal line, and 9 is a power supply. It is a line.

Claims (1)

[Claims] 1. A central control unit and a plurality of operation and control terminals having unique addresses are connected by a pair of signal lines, and the central control unit appropriately accesses each terminal to control the load. In a remote monitoring and control device that performs time-division multiplex transmission of monitoring data of operation switches and control data for load control based on the monitoring data, a memory in which a simultaneous control mode of a load to be controlled is stored in a central control device in advance The control data for simultaneous control is time-shared from the central control unit to all control terminals when receiving operation monitoring data of the operation switches of the operation terminal A remote monitoring control device characterized by multiplex transmission.