JPH02162689A - Remote supervisory control system - Google Patents

Abstract

PURPOSE:To adjust light by a remote control of a luminous load by controlling the luminous load in such a manner that the adjusted light thereof corresponds to a light adjustment data when a control terminal receives the data from a monitor terminal. CONSTITUTION:A signal processor 12 is connected to an address setter 13 for setting an address data inherent in a terminal 33. When the address data set in the setter 13 accords with an address data AD incorporated in a transmitted signal V5, the terminal 33 receives a control data CD so as to perform a specific operation. A light adjustment control signal CL inputted into the gate a phase control element Pc is outputted from the processor 12 in synchronism with a synchronous signal SY tuned with the zero-cross signal of a commercial ac power AC so as to be inputted into the gate of the phase control element Pc. Upon receiving a light adjustment data, the signal CL turns on the element Pc, thereby controlling a luminous load L.

Description

[Detailed description of the invention] [Industrial application field]

The present invention remotely controls a load connected to a terminal by transmitting data by time division multiplexing between a central control unit and a plurality of terminals connected via a signal line. 6 related to remote monitoring and control systems

[Conventional technology]

As shown in FIG. 6, this type of remote monitoring and control system includes a central control unit 31, a plurality of monitoring terminals 32 to which unique addresses are set, a control terminal 33, and a wireless relay terminal. device 34, external interface terminal device 35
, and a pattern setting terminal device 36 via a pair of signal lines 1. Switches 81 to S, such as wall switches, are connected to the monitoring terminal device 32 as monitoring inputs. Transmission signal V sent from central control device 31 to signal line l
As shown in FIG. 7(a), s is a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and an address for transmitting 8-bit address data for calling each terminal 32 to 36. Data signal AD, control data signal CD that transmits control data for controlling loads L1 to L4, checksum data signal C8, and signal return period W that sets the return period from each terminal device 32 to 36.
It is a bipolar (±24V) time division multiplexed signal consisting of T.
Data is transmitted using pulse width modulation. In each terminal device 32 to 36, when the address data of the transmission signal Vs received via the signal line I and the set address data match, the control data of the transmission signal Vs is taken in, and the control data of the transmission signal Vs is The monitoring data signal is returned as a current mode signal (a signal sent by short-circuiting the signal lines 1 via an appropriate low impedance) in synchronization with the return period WT. Also,
The central control device 31 includes a dummy signal transmitting means that always sends out a dummy transmission signal with the mode data signal MD in a dummy mode, a monitoring terminal 32, a wireless relay terminal 34, an external interface terminal 35, and a pattern. FIG. 7(b) returned from one of the setting terminals 36
When receiving an interrupt signal Vi such as shown in FIG.
. . . 36 to return monitoring data. In addition, the central control device 31
Then, as described above, the monitoring terminal 32 or the wireless relay terminal 34, the external interface terminal 35, and the pattern setting terminal 36 are connected to the central control unit 31.
The corresponding load based on the monitoring data sent back to ~
Create control data to be transmitted to the control terminal device 33 that controls L4, and time-division multiplex transmit the control data to the control terminal device 33 via the signal line l to control the load Ll-L. It is meant to be controlled. The wireless relay terminal 34 is an optical wireless transmitter Y
, optical wireless receiver X and wireless signal line IW
This is a terminal device that relays data in an optical wireless system consisting of: an optical wireless receiver X receives an optical signal transmitted from an optical wireless transmitter Y, and transmits the received data via a wireless signal line 1w Along with receiving
This data is transferred to the central control device 31. Further, the external interface terminal device 35 is a terminal device that performs data transmission with the external control device 37, and the pattern setting terminal device 36 transmits pattern control data input from the data input section 38 to the central control device 31. This is the terminal device for the transfer. Note that the monitoring terminal 32 and the control terminal 33 installed in the distribution board 40 or the relay control panel 41 are set to the dimensions agreed upon by the distribution board, and their control outputs are used to control the load control remote control. It is configured so that a relay (a latching relay that can be turned on and off by a hand switch) 39 can be controlled.

[Problems to be Solved by the Invention] By the way, in the above conventional configuration, the monitoring terminal 3
When only the loads L1 to L connected to the control terminal 33 are turned on and off by turning on and off the switches 81 to S4 connected to the control terminal 33, and a lighting load is connected as the load. Secondly, there was a problem in that the dimming control was not taken into consideration, and in other words, the dimming control could not be performed by remote control in the past. The present invention aims to solve the above-mentioned problems, and provides a remote monitoring and control system that allows dimming control by remote control. [Means for Solving the Problems] In order to achieve the above object, the present invention provides a monitoring terminal device that generates dimming data as control data, and a monitoring terminal device that controls dimming of a lighting load upon receiving the dimming data. A terminal device for control is also provided. In addition, a step value that specifies the dimming step is used as the dimming data, and the control terminal controls the lighting load with the dimming amount set in one-to-one correspondence with the above step value. It is desirable to do so. Furthermore, it is desirable that each terminal device be housed in a container having the dimensions agreed upon by the distribution board. Further, each terminal device may be packaged in an embedded box standardized for each wiring device.

[Effect]

According to the above configuration, the monitoring terminal transmits the dimming data, and when the control terminal receives the dimming data, the lighting load is controlled so that the dimming amount corresponds to the dimming data. This makes it possible to dim the lighting load by remote control. In addition, if a step value that specifies the dimming step is used as the dimming data, and the control terminal determines the dimming amount in accordance with the step value, the dimming data to be transmitted will be The amount of data is sufficient to specify the number of stages, and dimming control can be performed without increasing the amount of data to be transmitted. If you use a container with the dimensions agreed upon by the distribution board or an embedded box standardized for wiring devices, it can be installed inside the distribution board or adjacent to a wall switch, etc. can.

【Example】

FIG. 1 shows a block diagram of the main parts of the present invention. A monitoring terminal 32a for creating dimming data, a monitoring terminal 32b to which switches S, S2 are connected, and a lighting load are connected to the central control device 31 via a signal line l. The terminal device 33 for control is then connected. As shown in FIG. 2, the terminal device 33 has a signal processing section 12 that discriminates various data included in the transmission signal Vs and creates monitoring data to be returned during the signal return period WT. Processing part 1
A transmitting/receiving section 11 for transmitting and receiving the transmission signal Vs is inserted between the signal line L and the signal line L. The signal processing unit 12 includes a terminal device 3.
3 is connected to an address setting section 13 for setting a unique address, and when the address data set by the address setting section 13 and the address data AD included in the transmission signal Vs match, the terminal device 33 outputs the control data CD. It accepts the call and performs a predetermined operation specified by the control data CD. A latching relay Ry is connected to the signal processing unit 12, and controls the contact r I + r 2 to close when the control data CD instructs to turn on the load. When contact r1 closes, an H level signal is input to the monitoring input of signal processing section 12, and latching relay Ry
It is designed to recognize that it has worked. Also,
Contact r2 is connected in series to a phase control element Pc made of a triac and a lighting load made of an incandescent lamp,
Both ends of this series circuit are connected to a commercial alternating current power supply AC. Further, the zero-crossing detection section 14 detects the zero-crossing of the commercial AC power supply AC (see FIG. 3(a)), and as shown in FIG. 3(b), a synchronization signal SY synchronized with the zero-crossing is sent to the signal processing section 12. is input. Phase control element P
The dimming control signal CL input to the gate of c (Fig. 3(c)
) is the signal processing unit 1 in synchronization with the synchronization signal SY.
2 and is input to the gate of the phase control element Pc via the gate drive section 15. Here, the delay time T from the rise of the synchronization signal SY to the rise of the dimming control signal CL is set based on the dimming data given by the monitoring terminal 32a. In this way, when the dimming data is given, the phase control element Pc is turned on only during the period when the dimming control signal CL is at the H level, and the lighting load is dimmed and controlled, as shown in FIG. 3(d). It is. Incidentally, the dimming data may be transmitted by converting analog data into digital data, but the amount of information becomes extremely large, and a problem arises in that the proportion of the dimming data in the transmission signal Vs becomes large. . In dimming that changes the illuminance according to the surrounding environment, it is generally not necessary to continuously vary the illuminance, and it is often sufficient to be able to adjust the illuminance in stages. Therefore, if about 2 bits of the transmission signal Vs are used to specify the dimming stage as a step value, the amount of information to be transmitted will be reduced and the transmission efficiency will be increased. In this case, in the terminal device 33 for controlling the lighting load, the amount of dimming is set in advance in a one-to-one correspondence with each stage value, and when the dimming data as a stage value is received, the level value is The lighting load is controlled so that the amount of light is adjusted accordingly. In this case, by appropriately setting the correspondence between the step value and the dimming amount in the terminal device 33, the dimming amount corresponding to the step value can be changed.
The allocation of the dimming amount can be changed for each terminal device 33 so that the optimal dimming amount can be obtained depending on the installation location of the lighting load. Note that the terminal device 33 shown in FIG.
Up to four loads L1 to L4 can be connected to the
In order to distinguish each load, ~L, connected to one terminal device 33, 2-bit load identification data is prepared, so that the terminal device 33 that performs dimming control of the lighting load It is sufficient to connect only one load and allocate the above 2-bit data to dimming data.The terminal device 32a that generates such dimming data is connected to a switch S that instructs on/off of the lighting load. and a switch Sa for instructing the dimming stage.
Sb is provided. By the way, the terminal device 33 configured as described above is
It is preferable to fabricate the container body 21 with a net having the dimensions agreed upon by the distribution board as shown in the figure. At the front of this body 21, an address setting section 13 consisting of a dip switch is exposed, and there are also terminals TT2 for connecting a load, and terminals T3 for connecting a commercial AC power source AC. T+, terminal T connected to signal line l,
T, are provided respectively. If the dimensions are set according to the agreement on the distribution board in this way, installation within the distribution board can be easily performed. Furthermore, as shown in FIG. 5, an embedded box standardized for wiring devices can also be used as the container body 21. On the front surface of the container body 21, threaded holes 22 are formed with the same pitch as the mounting frame for the wiring device. In the example shown in FIG. 5, the switch S for turning on and off the lighting load and the switches Sa and Sb for setting the dimming stage are configured so that they each occupy the space of three wiring devices. 4 By using such a container 21, it is possible to embed it in a wall, etc., attach it by soldering, and attach a decorative plate etc. using the screw hole 22, and it can be installed next to a wiring device such as a normal switch. It can be placed.

【Effect of the invention】

As described above, the present invention is provided with a monitoring terminal that generates dimming data as control data, and a control terminal that dims and controls a lighting load upon receiving the dimming data. , the monitoring terminal transmits the dimming data, and when the control terminal receives the dimming data, it controls the lighting load so that the amount of dimming corresponds to the dimming data, so the lighting load is reduced. It has the advantage of being able to be dimmed by remote control. In addition, a step value that specifies the dimming step is used as the dimming data, and the control terminal controls the lighting load with the dimming amount set in one-to-one correspondence with the above step value. In this case, the amount of data to be transmitted is sufficient to specify the number of dimming stages, and there is an advantage that dimming control can be performed without increasing the amount of data to be transmitted. Furthermore, if you use a container with the dimensions agreed upon by the distribution board or an embedded box standardized for wiring devices, it can be installed inside the distribution board or adjacent to a wall switch, etc. It has the advantage of being easy to install using known installation methods.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the main parts showing an embodiment of the present invention, and FIG.
The figure is a block diagram showing a control terminal used in the same as above, FIG. 3 is an explanatory diagram of the same as in the above, and FIGS. Side view,
Fig. 5 (aHb) is a front view and a side view showing the other side of the same external appearance, Fig. 6 is a schematic configuration diagram of the remote monitoring and control system according to the present invention, and Fig. 7 shows the format of the transmission signal shown in the above. FIG. 21... Instrument body, 31... Central control device, 32a...
- Terminal for control, 33... Terminal for monitoring, load, l... Signal line.

Claims (1)

[Claims] (1) A plurality of terminal devices each having a unique address are connected to the central control device via a pair of signal lines, and are connected to the central control device by transmission signals sent from the central control device. Data is time-division multiplexed between each terminal and the transmission signal includes address data for accessing the terminal, control data for controlling the load connected to the terminal, and return period for monitoring data from the terminal. In a remote monitoring and control system that includes a signal return period for setting the control data, there is a monitoring terminal that generates dimming data as the control data, and a control terminal that dims the lighting load upon receiving the dimming data. 1. A remote monitoring and control system comprising: a terminal device; (2) The dimming data is a step value that specifies a dimming step, and the control terminal device dims the lighting load at a dimming amount set in one-to-one correspondence with the step value. The remote monitoring and control system according to claim 1, wherein the remote monitoring and control system controls: (3) The remote monitoring and control system according to claim 1 or 2, wherein each of the terminal devices is housed in a container having a size agreed upon by a distribution board. (4) The remote monitoring and control system according to claim 1 or 2, wherein each of the terminal devices is housed in an embedded box standardized for a wiring device.