JPH0752676B2 - 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.

[Background Art] Conventionally, as a device for dimming control of a certification load, there is a so-called light controller, a dimmer which is called a mood switch, etc. However, in this dimmer, a device is connected in series to a power supply line. Was connected, and the resistance value of the volume attached to the fixture was changed to change the phase control angle, thereby performing dimming. Therefore, it is difficult to separate the position of the controller from the volume, and when connecting the proof load and the power supply line, it is not possible to wire it with the sense that the load is connected in parallel to the normal indoor power supply line, and the construction is also difficult. It was complicated. In addition, a remote monitoring control device for monitoring and controlling a load connects a conventional central control device and a plurality of monitoring and control terminals having a unique address by a pair of signal lines, and the central control device controls each terminal. The monitoring data is appropriately accessed to receive the monitoring data returned from each monitoring terminal device, and the control data for controlling the load based on the monitoring data is transmitted to each control terminal device. By the way, in such a remote monitoring and control device, a signal line is wired in addition to the normal power line wiring, and the central control device and the monitoring and control terminals are arranged at appropriate positions. However, there was a problem that the construction was troublesome and the operation check was difficult.

[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 easily perform construction and perform operation check.
Moreover, there is provided a remote monitoring control device capable of selectively inputting data of external signal generating means such as various sensors and timers, treating the input data as monitoring data, and performing load control by the operation of these signal generating means. To provide.

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. In a remote monitoring control device adapted to time-division multiplex transmit the monitoring data of the load control operation switch and the control data for load control based on the monitoring data by appropriately accessing
Since it has a control terminal that controls the load and a transformer that is provided for those that require an internal drive power source for the control terminal, and has a control panel with signal lines led to the outside,
The central control panel, control terminal, and power supply transformer can be installed together in the control panel, which simplifies construction and makes it easy to check operation. Since it is equipped with a monitoring terminal that selectively inputs data from the signal generating means and sends the input data as monitoring data to the central control unit via a signal line, it generates external signals such as various sensors and timers. Since the data of the means can be selectively inputted, the inputted data can be treated as monitoring data, and the load control can be performed by the operation of these signal generating means, various remote controls can be performed.

(Embodiment) FIG. 1 is a view 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 control panel 6 supplies a power line 9 corresponding to a load such as each certification load 1 and a remote control line. The signal line 7 for control is derived and wired in the installation building respectively.
A corresponding load such as a lighting load 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 group control. Pattern switch for 2
Connect the operation terminal 2 equipped with 03 etc. and the monitoring terminal that monitors the input signals of the disaster prevention sensor 501, daylight sensor 502, crime prevention sensor 503, etc., and use 2-wire wiring to perform normal electrical work. Construction is possible, and each floor is provided with a pattern switch 203 for controlling the lighting load 1 on that floor, and a selector switch 201 or an individual switch 204 for selecting the lighting load on that floor. It is provided.

FIG. 2 is a detailed wiring diagram of the remote monitoring control system in the conceptual block diagram of FIG. 1, and controls the central control unit 4 and the remote control relay Ry in the control panel 6 to control the load. The control terminal 3, the control terminal 3'with a built-in control relay for controlling the load, and the transformer T for supplying the drive power of the remote control relay Ry are built in, and the signal line is externally supplied from the control panel 6. 7 and derive the pattern switch 20 on this signal line 7.
The operation terminal 2 and the monitoring terminal 5 each having the switch 3 and the selector switches 201 and 202 are connected. FIG. 3 shows an overall schematic configuration of one embodiment, including a central control unit 4,
A plurality of operation terminals 2, monitoring terminals 5 and control terminals 3 (or 3 ′) for which unique addresses are set are 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
It is a multi-pole (± 24V) time division multiplex signal composed of a return standby signal WT for setting a return signal period from 2, 3 (or 3 '), 5, and data is transmitted by pulse width modulation. ing. 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. . Also, to the central control unit 4, a dummy signal transmitting means for constantly transmitting the dummy transmission signal Vs, and any one of the operation terminal 2 or the monitoring terminal 5 shown in FIG.
And an interrupt processing means for detecting an interrupt-generating terminal device when the interrupt signal Vi is received and accessing the terminal device to send back monitoring data,
On the other hand, the start pulse signal of the dummy transmission signal Vs is input to the operation terminal 2 and the monitoring terminal 5 when the monitoring input is received.
An interrupt generation means for generating an interrupt signal Vi in synchronism with ST and returning its own unique address data in synchronism with a return standby signal WT for returning a transmission signal Vs in the address confirmation mode from the central control unit 4, and a central control unit. 4 is provided with data return means for returning the monitoring data corresponding to the monitoring input when the interrupt access mode transmission signal Vs in response to the interrupt is transmitted from the operation terminal 2 and the monitoring terminal 5. The control data to be transmitted to the control terminal 3 (or 3 ') is created based on the monitoring data returned from the central control device 4. Further, the operation terminal 2 includes an individual switch 204 for individually controlling a load such as the lighting load 1, a selector switch 201 or 202 for individually selecting a plurality of the lighting loads 1 and performing an individual operation, and a plurality of lighting loads. Lighting switches such as incandescent lamps, fluorescent lamps, and other dimming switches 205 for dimming, lighting, and extinguishing lights other than those equipped with a pattern switch 203 for collectively patterning 1 1 temporarily (30 sec or
Temporary lighting switch 206 that lights up for 300 seconds, lighting off the lighting load 1 for a fixed time (30 seconds or 300se
c) There is a delay switch 207 connected to delay.
The monitoring terminal 5 has sequence control data output from external signal generating means such as a timer setting unit 504, a calendar type time switch 505, an indoor EE switch 506, a daylight sensor 502, a disaster prevention sensor 501, a crime prevention sensor 503. Is selectively input (in a preset pattern). The booster 10 inserted in the signal line 7 ensures the attenuation of the transmission signal Vs. 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 device of the same specification. The transmission signal Vs is used to select whether or not to connect both signal lines 7 and 7 ', and when both signal lines 7 and 7'are connected,
As the system scale becomes larger, the central control unit 4 can monitor and control the terminals 2 and 5 connected to both signal lines 7 and 7 ', for example, it is possible to perform wide range pattern control across both remote control units. Become. The remote control switch 8 is
It is designed to output a control output equivalent to the control output of the control terminal device 3. Both control outputs control the remote control relay Ry for load control, and the lighting load 1 is controlled in parallel. ing. The control terminal 3 ″ is a terminal for dimming, and this terminal 3 ″ connects the lighting load 1 to the power supply line 9 through the phase control switch means, performs phase control, and dims the lighting load 1. To do. Signal transmission between the operation terminal device 2 and the monitoring input means may be performed by using a wireless transmitter / receiver, and the pattern switch 203 may be turned on or off at the same time for all lighting loads 1 or all off. A switch may be provided.

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 signal receiving circuit 16b, isolation 17a and 17b for insulatingly coupling the transmission signal generating and receiving signal discriminating circuit 14, the signal transmitting circuit 16a and the signal receiving circuit 16b, the system program of the signal processing circuit 13, and control data. ROM15 that has been stored in advance and RAM for data processing and temporary storage
12 and clock generators 18a and 18b for creating a clock used in the signal processing circuit 13 and the transmission signal generation / reception signal discrimination circuit 14, and the dummy signal transmission means and the interrupt processing means are provided in the signal processing circuit 13. Has been realized. Further, the signal transmission circuit 16a forms a bipolar transmission signal Vs according to “H” and “L” of the pulse width modulated data signal output from the transmission signal generation / reception signal determination circuit 14, and also generates a constant voltage. It is adapted to be transmitted 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, 3 (3 'and 3 "), 5 through the signal line 4 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 provided when accessed from the central control device 4. , Load 1 by taking in the transmitted control data
The drive signal of the remote control relay Ry for turning on and off is output, and the monitoring data indicating the operating state of the remote control relay Ry is returned to the central controller 4. Further, the operation terminal device 2 and the control terminal device 3 (3 ′, 3 ″)
For setting the unique address of the terminal device, the lower 6 bits of the 8-bit address data are used by the user setting unit that can be appropriately set by the user, and the upper 2 bits are used by the manufacturer setting unit that indicates the type of the terminal device. , Both terminals 2 and 3 can be easily corresponded only by setting the user setting part of the unique address of the terminal to the same value, and the monitoring data returned from the monitoring terminal 2 set to the same value The load such as the lighting load 1 connected to the control terminal 3 can be controlled based on the above.

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. Formed by the current switching diodes Da and Db, the main contact point ra when a set current of a predetermined level flows from the AC power supply AC stepped down by the transformer T to the exciting coil L through the diode Da for a predetermined time. Is turned on to supply power to the lighting load 1, and the auxiliary contact rb is inverted to switch and connect the diode Db to the exciting coil L. On the other hand, the diode Db is connected to the exciting coil L from the AC power supply AC. When the reset current flows through the main contact ra, the power supply to the load 7 is stopped, and the auxiliary contact rb is inverted to switch the diode Da to the exciting coil L. You have me. 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. The 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 drawing, in the embodiment, the control output for controlling each of the four remote control relays Ry is output from the signal processing circuit.
The remote control switch 8 is a set / reset signal generating circuit including a push button switch SW ₀ and diodes Da ″, Db ′, and light emitting diodes LDa, LDb and diodes Da ′, Db ″.
Are connected in series with an on / off display circuit. The terminal for controlling the built-in relay instead of controlling the remote control relay Ry is the control terminal 3 ', and this terminal 3'is basically the same as the control terminal 3.

Next, 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 201,202,20
4 or the switch operation state of the pattern switch 203 or the like is captured in 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 captured control data. A certain light emitting diode LED is driven by an LED driver 26, which basically operates in the same manner as the control terminal device 3, and includes a signal processing circuit 22, a power supply circuit 24 'and an address setting circuit 20'.

By the way, in the present invention, in addition to the control terminals 3 and 3'for ON / OFF control of the lighting load 1 as described above, the control terminal 3 "for dimming and the operation terminal 2 therefor are provided. As shown in FIG. 9, the control terminal 3 ″ includes a triac TR which is inserted between the lighting load 1 and the power supply line 9 and an ignition circuit 27 which gives a trigger signal to the triac TR.
A signal processing circuit 22a for setting the phase control angle by varying the time constant of the firing circuit 27, an address setting circuit 20a,
It is composed of a power supply circuit 24a, and changes the value of the variable impedance element Ra of the ignition circuit 27 based on the control data to change the time constant and change the phase control angle. As shown in FIG. 10, equipped with dimming switches 205a, 205b for up and down and an on / off operation switch 205c, state information of these switches 205a to 205c input via the monitoring circuit 21 'is fetched and signal processing is performed. The circuit 22 controls the dimming degree determined by the turning-on time of the dimming switches 205a and 205b, and the on / off operation switch 205c
The operation status of is sent back as monitoring data.

The central monitoring device 4 previously writes control data based on the monitoring data according to the dimming degree returned from the operation terminal 2, that is, dimming data in the ROM 15 according to the monitoring data, and When the monitoring data corresponding to the above is returned, the dimming data corresponding to the degree is read from the ROM 15 and transmitted to the corresponding control terminal 3 ″.

The operation of the embodiment will be specifically described below with reference to the flowcharts shown in FIGS. 11 and 12. Now, when the central control device 4 is powered on and the monitoring control operation is started, first, the central control device 4 determines that the control terminals 3,
3 ', 3 "are sequentially accessed to check the load control status of each control terminal 3, 3', 3", and the operation display of the operation terminal 2 provided corresponding to each lighting load 1 is displayed. Light emitting diode for
The control data is transmitted so that the operation display of the LED matches the operation state of the lighting load 1. Next, the dummy signal transmitting means of the central control unit 4 operates to obtain an empty address other than the unique address set in the operating, controlling, or monitoring terminals 2, 3 (3 ', 3 "), 5. The dummy transmission signal Vs to be accessed is sent to the signal line 7. In the normal state where the dummy transmission signal Vs is constantly transmitted in this way, each terminal device 2, 3 (3 ', 3 "), 5 is addressed. Since no match is obtained, data transfer with the central control unit 4 is not performed and the system is in a standby state. When a monitoring input is input to any one of the operation terminals 2 from the monitoring input means, for example, a switch for turning on the lighting load 1 is pressed, and the operation input terminal of the operation terminal 2 is turned on. When a signal is input, the interrupt generation means formed in the processing circuit 22 for the signal of the operation terminal 2 immediately generates the interrupt signal Vi and outputs the signal in synchronization with the start pulse signal ST of the dummy transmission signal Vs. Send to line 7. The interrupt processing means of the central control unit 4 accesses the interrupt-generating terminal device 2 to return the address data in order to detect the interrupt-generating terminal device 2 when the interrupt signal Vi from the operating terminal device 2 is received. The transmission signal Vs in the address confirmation mode 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 control unit 4 in synchronization with the return standby signal WT. To do. In this way, from the interrupt generation terminal 2 to the central controller 4
The monitoring data sent back to the device is processed by the signal processing circuit 13 of the central control unit 4 to generate control data for controlling the lighting load 1 and send out the transmission signal Vs for accessing the corresponding control terminal 3. To do. The control terminal 3 that has received this transmission signal Vs controls the remote control relay 6 based on the transmitted control data to control the lighting load 1 to be turned on and off, and also to send monitoring data indicating the control state of the lighting load 1. It returns to the central control unit 4. The central control unit 4 transmits control data for updating the light emitting diode LED for operation display of the operation terminal 2 to the operation state display of the lighting load 1 based on the monitoring data returned from the control terminal 3. Then, the series of supervisory control operations is completed and the state returns to the standby state in which the dummy transmission signal Vs is constantly transmitted. If the interrupt generation terminal 2 is a dimming operation terminal and the monitoring data is data indicating the dimming degree by the operation of the dimming switch 205a or 205b, the central controller 4 is based on the monitoring data. The dimming data is read from the ROM 15 to create control data, and the transmission signal Vs for accessing the corresponding terminal device 3 ″ is transmitted. The terminal device 3 ″ conducts the triac TR at the phase control angle based on the received control data. The value of the variable impedance element Ra of the ignition circuit 27 is controlled so that the lighting load 1 connected thereto is dimmed. When the monitoring data in which the switch 205c of the terminal 2 for dimming is operated during this dimming period is sent to the central controller 4, the central controller 4 stores the phase control angle at that time in the RAM 12, and Control data for stopping the ignition operation of the ignition circuit 27 so that the lighting load 1 is turned off is transmitted to the corresponding terminal device 3 ″, and the lighting load 1 is turned off. The terminal device for dimming during this extinguishing period. 2 switches
When the monitoring data operated by 205c is sent to the central control unit 4, the central control unit 4 reads the dimming data based on the conventional phase control angle stored in the RAM 12, creates the control data, and outputs the control data. The lighting load 1 can be turned on in the conventional dimming state by transmitting to the corresponding terminal device 3 ″. Of course, when the dimming degree monitoring data sent by the dimming switches 205a and 205b is sent to the RAM 12. The stored dimming data is canceled and dimming data based on the monitoring data is created from the storage data of the ROM 15.

As described above, in the embodiment, the central control unit 4 transmits the dummy transmission signal and is always in the interrupt standby state, and the operation or monitoring terminal device 2 or 5 has the monitoring input and the interrupt signal. Is sent, the monitoring data is sent back from the interrupt-generating terminal immediately even if the number of terminals 2, 3, 3 ′, 3 ″, 5 increases. The responsiveness can always be improved regardless of the input timing of the monitoring input.

[Advantages of the Invention] In the remote monitoring control device configured as described above, the present invention includes a central control device, a control terminal device for controlling a load,
The control terminal has a built-in transformer that is provided for those that require a driving power supply, and a control panel with signal lines led to the outside. Wiring work is easy because all you have to do is connect it, and the central control panel, control terminal, and power supply transformer can be installed together in the control panel, which simplifies the installation work. In addition, it has the effect of facilitating the operation inspection and the maintenance management. Moreover, the data of external signal generating means such as various sensors and timers are selectively input, and the input data is used as the monitoring data. Since it is equipped with a monitoring terminal device that sends it to the central control unit via the, the data of external signal generating means such as various sensors and timers can be selectively input, and the input data can be treated as monitoring data. Since control can be performed by the operation of these signal generating means, there is an effect that various remote control becomes possible.

[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 10 are block circuit diagrams of main parts in the same as above, and FIGS. 11 and 12 are operation explanatory diagrams in the same as above. 1 is a lighting load, 2 is an operation terminal, 205a and 205b are dimming switches, 3,3 'and 3 "are control terminals, 4 is a central control unit, 5 is a monitoring terminal, and 6 is a control panel. , 7 is a signal line, 9 is a power line, 27 is an ignition circuit, and TR is a triac.

Front page continuation (72) Inventor Masayuki Kanaya, No. 856, Kamakiri, Noda, Tsu City, Mie Prefecture, Tsuga Metal Industry Co., Ltd. (56) (JP, A) JP-A-54-162865 (JP, A)

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 supervisory control device adapted to perform time-division multiplex transmission of supervisory control switch monitoring data and load control data based on the monitoring data, a central control device, a load control terminal device, and a control device It has a built-in transformer that is provided for the power supply for driving the terminal unit, and selectively inputs the data of external signal generating means such as a control panel and various sensors and timers. A remote monitoring control device comprising: a monitoring terminal device that sends the input data as monitoring data to a central control device via a signal line.