JPH084771Y2 - Interface for tele controller - Google Patents

Description

[Technical Field] The present invention relates to improvement of an interface for a telecontroller used in a home telecontrol system or the like.

[Background Art] Recently, a so-called telecontrol system for controlling electric equipment installed in a house or a shutter of a garage from a place away from home using a telephone line has become widespread. As shown in FIG. 5, such a telecontrol system is controlled by connecting a plurality of control devices 102A to 102C, such as a lighting device, an electric lock, and a garage shutter, to a terminal device connected to the telecontroller 100. Each of the control devices 102A to 102C ... Is connected to the tele controller 100 via the interfaces 101A to 101C.
When you call home from the outside using a push-type telephone 104, the telephone station 103
The line of the telephone 104 and the tele-controller 100 is connected via, and the control device 102A-102C required by inputting the code and the control signal of the control device 102A-102C ... by the push button operation of the telephone 104. .. can be automatically controlled, and the control state can be transmitted from the interface to the telephone 104 at the destination as a voice message.

By the way, the interfaces 101A to 101C in such a system are the tele-controller 100 and each control device 1
It is connected between 02A and 102B and has the internal configuration shown in FIG.

This interface will be described with reference to FIG.
Reference numeral 101 denotes a control signal transmission unit 101a for transmitting a control signal input from the telecontroller 100 side to the control device 102 side.
And a monitor signal transmission unit 101c that outputs an operation confirmation signal sent from the control device 102 side to the telecontroller 100 side when the control device 102 operates, and the control signal transmission unit 101a is a telecontroller. 100 control terminals OUT (A)
The transistor Q1 is turned on by the control signal sent from the input terminal IN (A) of the control signal transmission unit 101a, the photocoupler PH1 is driven to operate the device control signal output unit 101b, and the control is performed from the terminal OUT (B). Device IN terminal IN (B)
Is configured to drive the control device 102 by outputting a drive signal to the control device 102.
When the operation confirmation switch LS provided on the side is turned on, the operation confirmation signal is input from the terminal OUT (C) of the control device 102 side to the input terminal IN (C) of the monitor signal transmission unit 101c to turn on the transistor Q2. Then, the photocoupler PH2 is driven, and the terminal IN (D) of the telecontroller 100 is output from the terminal OUT (D).
Is output as a monitor signal to the tele controller 100 side and the fact that the device 102 has operated is returned to the tele controller 100 side.

However, in such a telecontrol system, the telecontroller 100 sends the control signal to the terminal O
After sending out from UT (A), after a predetermined time, terminal IN (D)
Since it is further determined whether or not there is a reply signal, it is determined that the control device that requires time to complete the operation after the control signal is input cannot be controlled.

For example, when controlling the shutter of a garage, if it takes 1 minute from the start to the end of the control, if the operation of the device is completed when the shutter is completely closed,
After the control signal is output, the monitor signal is returned from the control device after 1 minute has passed, and the tele-controller 100 judges that the control is impossible and sends back the control-disabled message to the caller through the telephone line. However, there is a problem that the operation of the device cannot be confirmed.

Further, in the conventional telecontroller, when a control signal is sent from a telephone or the like, a signal confirming acceptance of the control signal is not returned from the telecontroller side. In such a case, the operator is left in an uneasy state in which it is uncertain whether or not the telecontroller has received the control signal, and there is a dislike that the operator lacks reliability.

[Object of the Invention] The present invention has been made in view of the above circumstances, and when a control signal is sent from the telecontroller side and this is accepted, a monitor signal is immediately returned to the telecontroller side to perform a control operation. It is possible to notify that the control operation is completed by sending a monitor signal back to the telecontroller side even when the control operation of the control device is completed by the received control signal. Is intended to provide.

DISCLOSURE OF THE INVENTION The present invention proposed to achieve the above object is to connect a control device 3 and a telecontroller 1 and input a control signal sent from the telecontroller 1 side to control the device. The control signal transmission unit 2a for outputting to the 3 side and the control device 3
In the interface 2 having a monitor signal transmission unit 2c which inputs an operation signal from the side and outputs it as a monitor signal to the telecontroller 1 side, the control signal transmission unit 2a is
Between the input terminal and the output terminal, the transistor Q1 which is operated by the input of the control signal, the photocoupler PH1 which is driven by the ON operation of the transistor Q1, and the output signal of the photocoupler PH1 are output via the device control signal output unit 2b. While supplying to the output terminal, it is also supplied to the input terminal of the holding circuit 2d whose holding time is controlled and set by the timer circuit 2e, and the output terminal of the holding circuit is connected to the base of the transistor Q2 of the monitor signal transmission unit 2c. In addition, the monitor signal transmission unit 2c has a transistor Q2 which is turned on by a holding signal from the holding circuit 2d of the control signal transmission unit 2a and an ON state of the transistor Q2 between the input terminal and the output terminal. It is characterized in that the photo coupler PH2 driven by the operation is connected.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram showing a main part of an interface of the present invention.

The interface 2 of the present invention is a tele controller 1
Receiving a control signal from the control signal transmission unit 2a, which outputs a drive signal to the control device 3 and outputs a holding signal described later for a predetermined time, and a holding signal from the control signal transmitting unit 2a to the telecontroller 1. It is composed of a monitor signal transmission unit 2c that outputs a monitor signal, and the control signal transmission unit 2a has a holding circuit 2d formed of an RS flip-flop or the like,
A timer circuit 2e is provided.

Here, the holding circuit 2d is set when the control signal is received from the telecontroller 1 and outputs the holding signal, but the timer circuit is activated at the same time as the setting of the holding circuit 2d.
After the elapse of the set time of 2e, the timer circuit 2e is timed up and reset, and the hold signal is cleared. Therefore, for the set time of the timer circuit 2e, the control device 3 inputs the control signal. Later, it is set to a time sufficient to complete the control operation.

The basic operation will be described with reference to FIG.
When a control signal is output from the control terminal OUT (A) of the telecontroller 1, the control signal is input via the input terminal IN (A), the transistor Q1 is turned on, and the first photocoupler PH1 is driven. Then, the device control signal output unit 2b outputs a drive signal to the terminal IN (B) of the control device 3 through the terminal OUT (B), at which time the holding circuit 2d is set and the timer circuit 2e is also activated at the same time.

As a result, since the holding signal is output from the holding circuit 2d (Q output of "H"), the transistor Q2 of the monitor signal transmission unit 2c is turned on through the diode D1 and the photocoupler PH2 is also turned on. Therefore, the output terminal OUT (D) outputs a monitor signal, which is input to the telecontroller 1 through the input terminal IN (D).

This monitor signal is immediately returned from the interface 2 to the telecontroller 1 when the telecontroller 1 sends out a control signal.
After confirming the reply, it is determined that the signal is under control.

On the other hand, when the control device 3 completes the control operation after a predetermined time elapses after the interface 2 receives the control signal from the controller 1, the operation completion switch of the control device 3 is completed.
Since SW is turned on, the operation completion signal is output.

In the present invention, the set time of the timer circuit 2e is set to the time required for the control device 3 to complete the control operation after the interface 2 receives the control signal. When the time is up, or after that, by confirming the presence or absence of the monitor signal from the interface 2, it is possible to determine whether the control is completed or the control is disabled.

That is, the telecontroller 1 is interface 2
If the monitor signal is output from the interface 2 at the time when the time circuit 2e further times up or immediately after the control signal is sent to the monitor, it can be determined that the monitor signal is due to the operation confirmation signal. When no signal is output, the operation completion signal is not output from the control device 3, and it can be determined that control is impossible.

FIG. 2 shows a time chart when control is completed, and FIG. 3 shows a time chart when control is impossible.

Therefore, in the telecontroller system using such an interface, the telecontroller 1 is
If a monitor signal is immediately received from the interface 2 when the control signal is sent to the interface 2, it can be determined that the control signal is sent to the control device 3 and the control operation is in progress. It is possible to reply a voice message such as "It is in control." Also, by outputting a control signal to the interface 2 and confirming the monitor signal returned from the interface 2 at the time when the timer circuit 2e times up or immediately thereafter. It can be determined that the control is completed, and in this case, a voice message such as "control is completed" can be returned to the calling side.

On the contrary, the control signal is sent to the interface 2,
If the monitor signal is not returned from the interface 2 at the time when the timer circuit 2e times out or immediately after that, it can be judged that control is not possible, and the voice message such as "Could not be controlled" to the calling side. You can reply.

Such an interface of the present invention is convenient for use in a control device that requires time to complete the control, such as opening / closing control of a garage shutter, and a monitor signal is returned at the same time as the control signal is sent. With the tele controller 1, it is possible to confirm that the control operation is in progress, and it is possible to avoid erroneously determining that control is impossible.

In order to confirm the completion of the operation of the control device, the caller calls the tele-controller, sends a control signal, and is confident of the reply of the message that the control operation is in progress. Wait for the telephone line to remain connected and check the control operation completion message, or disconnect the telephone line once and call the telecontroller again after the time until the operation of the control device is completed. , You can check.

[Advantages of the Invention] According to the present invention, even with a control device that requires a long time to complete the control, the telecontroller sends the control signal and immediately returns the monitor signal from the interface with a simple circuit configuration. By doing so, since it can be confirmed that the operation is in progress, the telecontroller will not erroneously determine that control is impossible.

Also, the completion of the control operation for the transmitted control signal,
It can be easily confirmed by whether or not the monitor signal is returned.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an essential part of an interface of an embodiment of the present invention, FIGS. 2 and 3 are timing charts showing its operation, and FIG. 4 is an essential part of an interface of a conventional telecontrol system. FIG. 5 is a circuit diagram showing the structure of a conventional telecontrol system. (Explanation of symbols) 1 …… Tele controller 2 …… Interface 2a …… Control signal transmission part 2b …… Device control signal output part 2c …… Monitor signal transmission part 2d …… Holding circuit (flip-flop) 2e …… Timer circuit 3 ... Control equipment

Claims (1)

[Scope of utility model registration request] 1. A control signal transmission unit that receives a control signal from a telecontroller and outputs a drive signal to a control device, and a monitor signal transmission unit that returns a monitor signal to the telecontroller when an operation completion signal is received from the control device. And a first photocoupler driven by a control signal sent from the telecontroller, and the first photocoupler. A device control signal output section that outputs a drive signal to a control device by driving the holding device, a holding circuit that outputs a holding signal by driving the first photocoupler, and a driving circuit that is activated by driving the first photocoupler. It has a timer circuit that resets the holding circuit and clears the holding signal after the operation completion time has elapsed. Monitor signal transmission unit, in order to return the monitor signal,
The controller includes a second photocoupler driven by a holding signal from the holding circuit or an operation completion signal from the control device, and the controller monitors the monitor signal when it sends the control signal to the control signal transmission unit. When the monitor signal is returned from the signal transmission unit, it is determined that the control operation is in progress, while the control signal transmission is performed after the control signal is sent to the control signal transmission unit and after the set time of the timer circuit further elapses. The interface for the tele controller configured to determine that the control operation is completed when the monitor signal is continuously returned from the unit.