JPS6356095A - Centralized supervisory and control equipment - Google Patents

Abstract

PURPOSE:To prevent malfunction from occuring due to the collision of control recognition signals even if inherent addresses are set similary by permitting an extension control terminal not to return control recognition signals. CONSTITUTION:Control terminals 31-3n or extension control terminals 31'-3n' fetch control data from a central control unit 1, output load control signals, and drive remote control relays 6 so as to interlockingly control loads such as calorifiers L1 and L1' and fans L2 and L2'. Then, control recognition signals are returned from the control terminals 31-3n to the central control unit 1. At such a time, the extension control terminals 31'-3n' where the similar inherent addresses are set are made not to return the control recognition signals, whereby the collision of the control recognition signals do not occur on a signal line 4 and so is the malfunction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a centralized monitoring and control device that centrally monitors the states of operating switches and centrally controls a large number of loads based on the operating switch states.

[Background 1] Conventionally, this type of centralized monitoring and control device centrally monitors the state of the agitation switch and centrally controls a large number of loads based on the state of the operation switch (as shown in 2008). The central control unit':!11, the monitoring terminal 2 that monitors the state of the operation switch, and the control terminal 3 that controls the negative M are connected to the central The control device l accesses the monitoring terminal 2 and sends back the ll+ and j viewing data, and based on the monitoring data, the C type ril control data is transferred from the central control Vc position 1 to 1: (j The device 3 is accessed and transmitted, and the control terminal device 3 returns a control confirmation signal.

IjS9 Figure 6 shows an example of the transmission signal Vs transmitted from the central control device 1, so the transmission signal Vs transmitted as a bipolar signal is the start signal S'r indicating the start of signal transmission.
, an address data signal AD for transmitting address data for accessing each terminal device 2 and 3, and a control terminal device 3.
The control data signal CD is comprised of a control data signal CD for transmitting control data, and a return waiting period signal WT, and each data is transmitted by pulse width modulation. Also,
The return signal VB, which returns monitoring data or control confirmation signals from the monitoring terminal 2 or the control terminal 3 to the central controller 1, is the same layer as the return waiting time signal W (signal obtained by connecting an appropriate low resistance between wires 1 and 1). Further, each terminal device 2, 3 rectifies and smoothes the transmission signal Vs to obtain circuit power.

By the way, in such a conventional example, when it is desired to control a plurality of loads in conjunction with the same operation switch, it is necessary to provide a control terminal 3 in which a different unique address is set for each load. However, the central control unit 1
There is a problem that the responsiveness decreases as the number of accesses increases, and it is also necessary to set the unique addresses of the plurality of control terminals 3 to which the loads to be controlled in conjunction are connected. There was a problem that creating an address setting was troublesome. Therefore, multiple control terminals 3 to which loads to be controlled in conjunction are connected are set to the same unique address, and the central control device 1 accesses the multiple control terminals 3 at the same time to transmit the same control data. It is conceivable to set multiple loads in conjunction, but in this case, the control confirmation signals returned from each control terminal 3 will collide on the signal line 4, resulting in malfunction. There was a problem.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and its purpose is to provide good responsiveness and facilitate address setting work. An object of the present invention is to provide a centralized monitoring control device that does not cause malfunctions.

[Disclosure of the Invention] (Embodiment 1) FIGS. 1 to 53 show one embodiment of the present invention, so the central control device 1 and the operation switches S W , S W
A pair of signal lines connects a monitoring terminal 2 that monitors the status of 2... and a control terminal 31 to 31 that controls a load such as a 7.7 ton water heater L2 via a remote control relay 6. 4
The central control device 1 accesses the monitoring terminal device 2 to send back the monitoring data, and the control data formed based on the monitoring data is transmitted from the central control device 1 to the control terminal device 31.
~3n and transmits the data, as well as the control terminal 3.
A centralized monitoring system similar to the conventional example in which a control confirmation signal is sent back from ~3n! In the E device, the control terminal 3. The same unique address as ~3n is set for water heater L.
1. Loads linked to loads such as fan L2 (water heater L1
°, 7 an l? The expansion control terminals 31' to 3n' that control the expansion control terminals 3 and 3n are connected to the signal line 4 and set to the expansion control terminals 3 and 3n, respectively. ~3I+'
Control confirmation (, I was made not to return the item. In the actual heat example, the operation switches SW, SW2
. . . are arranged in a row in the operation g5, and name plates and operation display lamps are provided corresponding to the operation switches sW, s'vV2, . It goes without saying that the monitoring terminal 2 may be incorporated into the operation panel 5. Control terminals 31 to 3n1. As shown in Figures 2 and 3, the terminal section on the top surface of the case 9 in which the terminal unit VR8 is housed has signal input terminals 10a and 10b to which the signal terminal 4 is connected, and a remote control terminal. A power supply connection terminal 11 to which one side of the power supply for relay control is connected is arranged in a row, and a control signal for the remote control relay is connected to a lead wire 12a.
~12d. Also,
A protective cover 138 covers the address setting switch 13 for setting the unique addresses of the control terminals 31 to 30. Note that the relay control panels A and B are installed in the distribution board, and the control terminals for expansion 31' to 311' are connected to the control terminals 31' to 311'. The dimensions of ~3n are set to the dimensions agreed upon by the distribution board.

The operation of the embodiment will be described below. FIG. 4 is a flowchart showing the monitoring control operation of the central control device 1,
Now, the central control device 1 is controlling the controller 2: the A terminals 3, ~311.
is accessed to return an operation confirmation signal indicating the load's control status, and display the operating status of each load with a lamp. In this case, the loads controlled by the expansion control terminals 31'-3n' are considered to be in the same operating state as the loads controlled by the control terminals 31-3n.

Next, the central control unit! R1 continuously checks whether there is an interrupt request from the monitoring terminal 2 using the dummy transmission signal Vs that transmits dummy data unrelated to monitoring control. Here, in the monitoring terminal 2, when any of the operation switches sw, sw2, etc. is operated,
An interrupt signal consisting of a current mode signal is generated in synchronization with the start signal ST of the dummy transmission signal Vs to notify the central control unit 1 of the operation input and request access by interrupt processing. There is. When the central control device 1 receives this interrupt signal, it immediately accesses the monitoring device 9a terminal 2 to send back the monitoring data, and operates the f:a operation switch SW1. SW2...
- Confirms the following, creates control data for controlling the load based on the operation input, and also creates a control terminal device 3 for controlling this load. ~3n, accesses the expansion control terminals 8''~3n' and transmits control data.

Control terminals 31 to 3n or expansion control terminals 3, to
b A load control signal that compares the address transmitted in the address data signal AD of S and, when an address match is obtained, takes in the control data transmitted in the subsequent control data signal CD to control the load. is output, and the remote control relay 6 is driven by this load control signal to operate the water heater L,
, L , ", Fan L2. Loads such as L2° are controlled in conjunction with each other.

Next, control confirmation signals are sent back from the control terminals 31 to 3n to the central controller 1 in the form of current mode signals in synchronization with the return waiting period signal WT. In the central control device 1, this control receives the acknowledgment signal, confirms the operating state of the load, and controls the operation indicator lamp to display the current load control state.

This time, the control terminal 3. An expansion control terminal 3. to which the same unique address as 30 is set. ~30゛, the control confirmation signal is not returned, so the signal R
This is to prevent malfunctions from occurring due to collision of control confirmation signals on the controller 4. As described above, in the present invention, the unique addresses of the additional control terminals 31° to 3n' to which the interlock-controlled loads are connected are assigned to the control terminals 3. ~
Since it is set to be the same as the unique address of 3n, responsiveness can be improved and the address setting work can be done easily. Also, control for expansion:! Since control terminals 31' to 3[1] do not return I+control confirmation number 3, control confirmation on signal line 4 (control confirmation number 3) is prevented from causing malfunction due to collision of number 5. .Furthermore, control terminals 3, -3n, and 1till for expansion.
Since the upper and lower ends 373 and +-31+ have the same shape and have the dimensions agreed upon in the electricity distribution board, they can be easily installed in the electricity distribution board.

(Embodiment 2) FIGS. 5 to 7 show another embodiment in which a remote control relay and a control terminal are integrated to form a relay unit 30 with a terminal, and a remote control relay and an additional control This is an extension relay unit with a terminal device (30°) that is integrated with the terminal device (both relay units).
The dimensions of 30 and 30" are set to the agreed upon dimensions (for two remote control relays). Also, each relay unit 30° and 30° is designed to be able to control four loads each. Each control output (relay contact, Hiro) is
The signal is output through output terminals 32a and 32 provided on the top surface of the case 31 housing the control circuit 81. Note that other borrowing and operations are completely the same as in the first embodiment.

[Effects of the Invention] As described above, the present invention connects the central control device, the monitoring terminal device that monitors the state of the operation switch, and the control terminal device that controls the load to a pair of signal lines, Access the monitoring terminal from , send back the monitoring data, and centrally control the control data formed based on the monitoring data! In a centralized monitoring and control device that accesses and transmits a control terminal from location A and also returns control confirmation No. 43 from the control terminal, the same unique address as the dual control terminal is set and the above load is When an expansion control terminal that controls the interlocking load is connected to the signal line, and the expansion control terminal is set to have the same shape as the control terminal, in 6, the NI
It is designed to prevent the control confirmation signal from being returned from the control terminal, and the unique address of the control terminal and the expansion control terminal are set to be the same, resulting in good responsiveness and easy address setting work. In addition, since control confirmation signals are not returned from the expansion control terminal, collisions of MI confirmation signals can be avoided even if the unique addresses are set to the same address. This has the effect of preventing malfunctions caused by

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of an embodiment of the present invention, Fig. 2 is a top view of the main parts of the same, Fig. 3 is a side view of the main parts of the same, Fig. tJS4 is an explanatory diagram of the same as the above, and Fig. 5 is another diagram. A schematic configuration diagram of an embodiment of
FIG. 6 is a top view of the main parts of the same as above, FIG. 7 is a side view of the main parts of the same as above, FIG. 8 is a schematic configuration diagram of the conventional example, and FIG. tIS9 is an explanatory diagram of the same as above. 1 is a central $ control device, 2 is a monitoring terminal, 3. ~3n is a control terminal, 31"~3n" is an additional JF5 control terminal, 4
is a signal line. Agent Patent Attorney Ishi 1) Kai 7 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] (1) Connect the central control device, the monitoring terminal device that monitors the status of the operation switch, and the control terminal device that controls the load to a pair of signal lines, and access the monitoring terminal device from the central control device to obtain the monitoring data. In the centralized monitoring and control device, the central control device accesses and transmits control data formed based on the monitoring data by accessing the control terminal from the central control device, and also causes the control terminal to return a control confirmation signal. Connecting an expansion control terminal that has the same unique address as the control terminal and controls a load linked to the load to the signal line, and setting the expansion control terminal to have the same shape as the control terminal. , a centralized monitoring control device characterized in that a control confirmation signal is not returned from an expansion control terminal device.