JPH053591A - Remote monitoring control system - Google Patents

Abstract

PURPOSE:To remote-control a device requiring the simultaneous input of a plurality of signals for one operation without providing a circuit on an external part by providing a function generating a plurality of signals necessary for the operation control for a load on a terminal equipment. CONSTITUTION:A plurality of terminal equipments having an intrinsic address are connected through a signal line to a central control unit and the central control unit accesses each terminal equipment separately to transfer control data. The central control unit centralized-monitors the operational state of the load according to the monitoring data to be returned from the terminal equipment. In this case, a terminal equipment for which a load requiring the simultaneous input of a plurality of signals for one operation is connected is provided, and a signal generation circuit preparing a plurality of signals at the time of receiving control data corresponding to this operation is provided on the terminal equipment. This signal generation circuit is composed of, for example, contacts r1 to r3 of latching relays Ry1 to Ry3 and diodes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a terminal in a remote monitoring control system for remotely operating a lighting window opening / closing device and the like.

[0002]

2. Description of the Related Art As a conventional remote monitoring control system,
There is one shown in 5. In this remote monitoring control system,
Central controller 1 and switch S with unique address set
₁~ S _FourA plurality of monitoring terminals 2 for monitoring a load L₁~
L_FourControl terminal 3 for controlling the mobile terminal, wireless relay terminal
Device 7, external interface terminal device 8 and pattern setting
The terminal device 9 for use is connected by a pair of signal lines 4.

The transmission signal V _S sent from the central control unit 1 to the signal line 4 is, as shown in FIG. 6, a start pulse ST indicating the start of signal transmission, mode data MD indicating the signal mode, and the terminal device 2 to be accessed. , 3, 7-9 address data (8 bits) AD, load L ₁ -L
_A pulse-width-modulated bipolar (± 24 V) consisting of control data CD indicating control contents for controlling ₄ , checksum data CS, and a return standby signal WT for setting a return standby period from the terminals 2, 3, 7-9. ) Is transmitted by a time division multiplex signal.

In each of the terminals 2, 3, 7-9, when the address data of the transmission signal V _S received via the signal line 4 and its own unique address data match, the transmission signal V _S is controlled. The monitoring data signal is received in synchronization with the return standby signal WT of the transmission signal V _{S, and} the central control unit 1 is supplied with a current mode return signal obtained by connecting an appropriate low resistance between the signal lines 4. Send it back.

Here, to the central control unit 1, one of the monitoring terminals 2 or the wireless relay terminals 7, the external interface terminals 8 and the pattern setting terminals 9 is returned to FIG. Interrupt signal Vi as shown
Is received, an interrupt processing means for detecting the interrupt-generating terminal devices 2, 7-9, accessing the terminal devices 2, 7-9, and returning the monitoring data is provided. Also,
In the central controller 1, the monitoring terminal device 2 is used as described above.
Alternatively, a control terminal that accesses the wireless relay terminal device 7, the external interface terminal device 8, and the pattern setting terminal device 9 and controls the corresponding loads L _{1 to} L ₄ based on the monitoring data returned to the central controller 1. The control data to be transmitted to the device 3 is created, and the control data is time-division multiplexed to the control terminal device 3 via the signal line 4 to control the loads L _{1 to} L ₄ .

The wireless relay terminal device 7 is a terminal device for relaying data of an optical wireless system including an optical wireless transmitter Y, an optical wireless receiver X and a wireless signal line 4a, and is transmitted from the optical wireless transmitter Y. The received optical signal is received by the optical wireless receiver X, the received data is received via the wireless signal line 4a, and this data is transferred to the central controller 1.

Also, the external interface terminal 8 is
The pattern setting terminal device 9 is a terminal device that performs data transmission with the external control device 8a, and transfers the pattern control data input from the data input unit 9a to the central control device 1. By the way, in this type of remote monitoring control system, the central control unit 1 is arranged on the distribution board 6, and the monitoring and control terminals 2 and 3 are arranged in the control panel 6a provided on each floor of the building. , A branch signal line 4 ′ branched from the signal line 4 is wired to the monitoring and control terminals 2 and 3 in the control panel 6a to monitor the operation switches S _{1 to} S ₄ arranged on each floor. , The loads L _{1 to} L ₄ are controlled via both terminals 2 and 3 and the central controller 1. It should be noted that the monitoring terminal 2 arranged in the distribution board 6 or the control board 6a
The control terminal 3 is formed to have a standardized contract size of an electric board. Further, the control output of the control terminal 3 controls a remote control relay 5 for load control (which can be turned on and off by a hand switch).

[0008]

By the way, as the above-mentioned remote monitoring control system, there is a system for controlling the operation of a lighting window opening / closing device provided with an electric motor, for example. In this type of remote monitoring control system for remotely controlling a lighting window opening / closing device, a control terminal 3 corresponding to the lighting window opening / closing device and a monitoring terminal 2 corresponding to an operating device for the lighting window opening / closing device are provided. And a switch for opening the lighting window opening / closing device, a closing / closing switch, and a stop switch for stopping the opening / closing operation, when the above switches of the operating device are operated, signal transmission processing of the remote monitoring control system described above. The signal is transmitted in accordance with the above, and the control terminal 3 controls the opening / closing operation of the daylighting window opening / closing device by controlling the operation of rotating the electric motor of the daylighting window opening / closing device in the forward, reverse or stopping directions. ..

However, there are some devices having an electric motor, such as the above-mentioned lighting window opening / closing device, which have a circuit configuration in which the operation of the electric motor is stopped when a forward / reverse rotation signal is given together. However, the conventional control terminal 3 of this type of remote monitoring and control system has only the function of individually outputting each signal. Therefore, in order to correspond to the above device, when the stop signal is output, It was necessary to attach a circuit to the above device to simultaneously provide an open signal and a closed signal.

The present invention has been made in view of the above points, and an object thereof is to simultaneously input a plurality of signals for one operation without providing an external circuit. It is an object of the present invention to provide a remote monitoring control system capable of remotely controlling a device.

[0011]

In order to achieve the above-mentioned object, the present invention comprises a terminal to which a load which requires simultaneous input of a plurality of signals for one operation is connected, and which has the above-mentioned operation. The terminal device is provided with a signal generation circuit that generates a plurality of signals when receiving corresponding control data and applies them simultaneously to the load.

[0012]

The present invention has the above-mentioned configuration,
Special feature that the terminal is equipped with a function to generate multiple signals necessary for controlling one operation of the load, and multiple signals must be input simultaneously for one operation without attaching an external circuit. It is possible to control even such loads with the terminal unit alone.

[0013]

1 to 4 show an embodiment of the present invention. In the case of the present embodiment, a case where the load is a daylighting window opening / closing device including an electric motor will be described. First, a basic circuit section required for the control terminal 3 for the lighting window opening / closing device of the present embodiment to function as the control terminal 3 of the above-described remote monitoring control system will be described with reference to FIG.

This basic circuit section includes a receiving circuit 32 for receiving a transmission signal, a returning circuit 33 for returning a monitoring signal, a memory circuit 34 including an EEPROM for storing an address set therein, and a receiving circuit 32. A signal processing circuit 30 for performing signal processing such as collation of received transmission signals, operation control of load according to control data of the transmission signals, return of monitoring signals in a return waiting period, and control signals output from the signal processing circuit 30. Output circuit 35 that outputs a drive signal for a latching relay or the like that actually drives a load in accordance with is there.

The terminal 3 is equipped with a wireless transmission circuit 37 and a wireless reception circuit 38 for transmitting and receiving data to and from the wireless address setting device so that the address can be set wirelessly. ..
Further, in this type of terminal device 3, a diode bridge DB ₁ is provided at the input so that it can be connected to the signal line 4 with no polarity. Since the more specific configuration of the main circuit section is general, the description thereof will be omitted. Also, the terminal 3
Does not necessarily have to set the address wirelessly, but may set the address using a DIP switch or the like.

Next, an explanation will be given of the auxiliary circuit section which has a different structure according to the load, with reference to FIG. This Figure 1
A in FIG. 2 indicates the main circuit section described above. In this example,
As this accessory circuit part, 3 latching relays Ry ₁
To Ry ₃ , each latching relay Ry _{1 to} Ry
₃ is for controlling the opening / closing and closing of the lighting window opening / closing device. A monitoring circuit 39 is provided to monitor the operating state of the lighting window opening / closing device. The light emitting element LD ₂ in FIG. 1 is for receiving and displaying.

The output terminal of the terminal 3 is a common terminal.
T₁, Output terminal T for outputting open signal₂And output a closed signal
Output terminal T₃Consists of a latching relay for open control
Ry₁Contact point r₁Common terminal T₁And output terminal T₂Between
Connected to the closing control latching relay Ry₃Contact point r₃
Common terminal T₁And output terminal T₃Connect between and for stop
Latching relay Ry₂Contact point r₂Diode D₂Over
And D₃Through the common contact T ₁And each output terminal T₂, T
₃It is connected between and. That is, in the case of this embodiment,
Multiple signals when receiving control data corresponding to one operation
To create a signal generation circuit that simultaneously applies to the load
Grey Ry₁~ Ry₃Contact point r₁~ R₃And Daio
De D₂, D₃It is composed of. Specifically, the stop rack
Ching relay Ry₂When is set, common terminal T₁
And output terminal T₂, T₃By short-circuiting between and at the same time,
Opening and closing of the lighting window when a stop operation is performed by the operating device
Make sure that an open signal and a closed signal are input to the device at the same time.
It In addition, in the case of this terminal device 3, a latching grip for opening control is provided.
Ray Ry₁Set terminal and closing control latching relay R
y₃Diode D between the reset terminal of₁Connect
Latching relay for opening control Ry₁When is set,
Latching relay for closing control Ry₃And a configuration to reset
However, the opening operation is prioritized over the closing operation.

The monitoring circuit 39 has a monitoring input terminal T._Four, T_Five
In order to connect to the lighting window opening and closing device with no polarity, and
Die provided to apply voltage to the monitoring signal line
Aude Bridge DB₂And the lighting window opening / closing device and the terminal 3.
To electrically isolate the monitoring data input line between
Photo coupler PC provided₁It consists of and. Since
The operation of this embodiment will be briefly described below. Now
In the operating device of the optical window opening / closing device, the open switch is pressed.
If so, the above-mentioned interrupt processing of the remote monitoring control system
And a lighting window via the central control unit 1 by signal transmission processing.
The transmission signal is transmitted to the terminal device 3 for the switchgear. This biography
The terminal 3 which received the transmission number can verify the address.
And whether the transmitted signal corresponds to itself
If the address matches, the transmission signal
Latching relay for opening control by capturing control data of
Ry₁Set. At this time, the latching relay Ry
₁Contact point r₁Closes. Here, for example, the common terminal T₁To
If voltage is applied, output terminal T₂Voltage is also applied to
Be done. In the lighting window opening / closing device, the motor is driven according to this voltage signal.
Drive voltage application control and switching of applied voltage direction
Equipped with a switching circuit composed of switching elements
If an open signal is given, the switching circuit
Applying a drive voltage that rotates the motive in a certain direction, for example,
For example, rotate the electric motor forward and open the lighting window opening / closing device.
The latching relay Ry described later₂, Ry₃in the case of
Is the same, but latching relay Ry₁Is set
Set for about 0.2 seconds and then reset.
Be done. In other words, the output of the terminal device 3 in this case is
The output is the same as a switch whose contacts are closed only during
It

When the lighting window opening / closing device opens in this way, a monitoring signal indicating the operation status of the lighting window opening / closing device at this time is input to the signal processing circuit 30 through the monitoring circuit 39. Therefore, the signal processing circuit 30 creates a return signal according to the supervisory signal and returns it to the central controller 1 during the return waiting period. In response to the monitoring data, the central control device 1 receiving the return signal sends a control signal for turning on the display element for opening operation display provided in the operating device via the monitoring terminal 2. By doing so, the operating condition of the lighting window opening / closing device can be monitored on the operating device side. The control of the display element at this time is performed in substantially the same manner as the signal transmission to the control terminal device 3.

On the contrary, when the lighting window opening / closing device is closed, if the closing switch of the operating device is pushed, the closing control latching relay Ry ₃ is set by the same operation as that described above, whereby the latching relay is set. The contact r _{3 of} Ry ₃ closes,
A voltage is applied to the output terminal T ₃ , and the switching circuit operates in response to the voltage signal to reverse the electric motor and close the lighting window opening / closing device. In this case as well, similarly to the case of opening the daylighting window opening / closing device, the display element for the closing operation display is turned on to indicate that the daylighting window opening / closing device is in the closing operation.

Once the lighting window opening / closing device is once opened or closed as described above, the opening or closing operation is maintained until a stop signal is given. However, such a case is excluded because the lighting window opening / closing device has a safety function of automatically stopping the opening / closing operation when the opening / closing operation is completely stopped or when the opening / closing operation cannot be performed due to an obstacle.

When the stop operation is performed by the operating device, the terminal device
In 3, latching relay for stop Ry ₂Set and output
Terminal T₂, T₂Voltage is applied to both. That is, the open signal
And the closing signal are simultaneously input to the lighting window opening / closing device. This
If an open signal and a closed signal are simultaneously input, the switching circuit
Operates to stop applying voltage to the motor, which
Thus, the opening / closing operation of the lighting window opening / closing device is stopped. This place
In the case of the opening data display element of the operating device
The closing operation display element is turned off.

According to the above, even if the device performs one operation when a plurality of signals are simultaneously input,
It is not necessary to additionally provide a circuit for generating a plurality of signals from one signal, and the terminal device 3 itself can control the operation of a special load such as a lighting window opening / closing device. The structure of the terminal 3 is shown in FIG. The housing 40 of the terminal device 3 includes a body 41 having an open upper surface and a cover 42 that covers the opening of the body 41 and is attached. The body 41 and the cover 42 are integrated using a fixing screw 43. It is as a structure that binds to. The outer dimensions of the housing 40 are formed to be the same as those of the electric installation board so that the housing 40 can be housed in the distribution board 6 or the control board 6a together with other terminals 2 and 3 of the distribution board storage type. is there.

A printed circuit board 46 is housed in the body 41, and a light emitting element LD ₁ of a wireless transmission circuit 37 for setting an address by optical wireless, a light receiving element PD ₁ of a wireless receiving circuit 38 and a light emission for reception display. The element LD ₂ is attached. The cover 42 has terminal block portions 44 formed at both ends, and terminal screws 45 with a terminal plate are attached to the separated sections of the terminal block portion 44 formed in two steps at one end side. To connect the wiring with the lighting window opening and closing device. The other terminal block portion 44 is for connecting the signal line 4 and the power source supplied to the diode bridge DB ₂ of the monitoring circuit 39.

On the upper surface of the cover 42 corresponding to the light emitting element LD ₁ and the light receiving element PD ₂ , an opening 48 to which a filter cover 47 having a light transmitting property is attached is formed, and
A through hole 49 exposing the light emitting element LD ₂ for receiving and displaying is formed. The name plate 50 is provided on the upper surface of the cover 42.
Is attached.

[0026]

As described above, the present invention is provided with a terminal to which a load that requires simultaneous input of a plurality of signals for one operation is connected, and a plurality of terminals are provided when control data corresponding to the operation is received. Since the terminal device is provided with a signal generation circuit that generates a signal of and applies it to the load at the same time,
It is possible to provide a function to generate a plurality of signals required for controlling one operation. Therefore, it is necessary to simultaneously input a plurality of signals for one operation without attaching an external circuit. The load can also be controlled by the terminal unit alone.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a main configuration of an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a main circuit unit as a control terminal device in the above.

FIG. 3 is an exploded perspective view showing a structure of a terminal device.

4 (a) to (c) are a plan view, a side view and a front view of the terminal device after assembly.

FIG. 5 is a system configuration diagram of a conventional remote monitoring control system.

FIG. 6 is an explanatory diagram of a transmission signal.

[Explanation of symbols]

1 Central Control Unit 2, 3 Terminal 4 Signal Line Ry ₁ ~ Ry ₃ Latching Relay r ₁ ~ r ₃ Contact D ₂ , D ₂ Diode

Claims (1)

Claim: What is claimed is: 1. A central control unit is connected to a plurality of terminals having unique addresses via signal lines, and address data of terminals at least accessed from the central control unit and load control contents. A control signal indicating the control data and a return waiting signal for setting a return waiting period from the terminal device is transmitted to each terminal device, and each terminal device is individually accessed by the central control device to allow each terminal device to access each terminal device. In the remote monitoring and control system, in which the central control unit centrally monitors the operating status of the load according to the monitoring data returned from the terminal unit during the return waiting period while transmitting the control data individually to each unit Is equipped with a terminal to which a load that requires simultaneous input of multiple signals is connected, and multiple signals are created at the same time when the control data corresponding to the above operation is received and applied to the load. Remote monitoring and control system of the signal generating circuit, characterized by comprising providing to the terminal device that.