JP2522085B2 - Image display type controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a home automation system, or a control device used for controlling lighting or air conditioning in a building or an apartment house, and in particular, a control content thereof. The present invention relates to an image display type control device that performs control while displaying.

[Prior Art] Conventionally, as an apparatus of this type, for example, Katsunori Tanie et al.,
"TV Display Controller", National Technical Re
port, Vol. 32, No. 6 (December 1986), pages 145 to 151 (published by the Technology Division of Matsushita Electric Industrial Co., Ltd.).

FIG. 9 is a block diagram of such a conventional image display type control device. (2) is a display device, (3) is a remote control transmitter, (4) is a CPU, (6) is a display synthesizing circuit, ( 6a) is a display control unit, (8) is a remote control receiving circuit, (20) is a current detection circuit, (21) is a power cord, (22) is a dedicated display device outlet, and (23) is a controlled device.

The remote control receiving circuit (8) receives the signal from the remote control transmitter (3) and outputs it to the CPU (4). The display synthesizing circuit (6) synthesizes the display image according to the instruction of the CPU (4) and displays it on the display device (2) via the display control unit (6a). The current detection circuit (20) monitors the operating state of the display device (2) according to the value of the power supply current of the display device (2) connected to the dedicated display device outlet (22), and the CPU (4)
Concentrate on.

Fig. 10 is a connection diagram of this image display type control device.
(1) is a control device main body, (2) is a display device, (3) is a remote control transmitter, (8) is a remote control receiving circuit, (11) and (12) are video signal connection terminals, and (21) is a power supply. code,
(22) is an outlet for a dedicated display device.

FIG. 11 is a circuit diagram of the current detection circuit (20),
(21) is a power cord, (22) is an outlet for a dedicated display device connected to the power cord (21) through a transformer (23), (24) is an amplifier, and (25) is a comparator.

Whether the power supply current of the display device (2) is taken out as a signal by the transformer (23), is amplified by the amplifier (24), and has a current value that flows when the display device (2) is in the operating state by the comparator (25). Is judged and the result is
Output to PCU (4).

In the image input type control device having such a configuration,
The operation is performed based on the flow chart shown in FIG.

First, in step (60), it is judged whether or not the power supply current of the display device (2) connected to the control device (1) is above a certain level, and if it is above a certain level, the display device (2) It is determined that it is in operation, that is, the state in which an image can be displayed, and the process proceeds to step (61). Here, it is determined whether or not there is a remote control input, and if there is a remote control input, the process proceeds to step (62) where the control signal input to the remote control is decoded, the display is changed or the controlled device corresponding to the contents is controlled. Performs processing such as control in (23).

Therefore, the operating state of the display device (2) is monitored by the value of the power supply current of the display device (2) connected to the dedicated display type outlet (22), and the display device (2) is not in the operating state. When the control contents are unknown to the user, that is, when the operation from the outside is inappropriate, the control by the signal from the remote control transmitter (3) is not performed to prevent the malfunction of the user. .

[Problems to be Solved by the Invention] In the conventional input control device as described above, when the display device is not in the operating state and the external operation is inappropriate, the current detection circuit monitors the power supply current of the display device. There are differences in the types of display devices, such as when control is disabled, or when the power supply current when a display device that uses a large current power supply is not operating is larger than the power supply current when a display device that uses a small current power supply is operating. Therefore, the current detection circuit may not operate correctly, there is a problem that the display device that can be connected must be limited, and the power supply of the display device must be connected to the power supply detection circuit. Atsuta

The present invention has been made in order to solve the above problems, and realizes operation prohibition when an external operation is improper to prevent a malfunction of the user, and to display an arbitrary display device. It is an object to obtain an image display type control device that can be connected and does not need to connect the power supply of the display device to the current detection circuit.

[Means for Solving the Invention] The input control device according to the present invention is provided with timer means for measuring time from the time when the final control input is made by the input means for inputting the control contents of the equipment. After the time when a predetermined time is measured by, the prohibiting means for prohibiting the device control according to the instruction from the input means is provided, and the releasing means for canceling the prohibition state by the prohibiting means is provided.

Further, it is preferable that the releasing means is also used as a display switch for giving an instruction to display the control content on the display device.

[Operation] The prohibiting means in this invention prevents an erroneous operation by setting the control input prohibited state at the time when a predetermined time is measured by the timer means, while canceling the operation prohibited state by a control prohibition cancellation request from the canceling means. To do.

Further, since the releasing means is constituted by the display switch, the display switch is always operated to display the control contents when the control inhibition is released, and the control input may be invalid when the image is not displayed. Easily recognizable.

An embodiment of the present invention will be described below with reference to the drawings. First
FIG. 1 is a block diagram showing an image display type control device according to the present invention, in which (1) is a control device main body, (2) is a display device such as a general television, and (3a) to (3e) are switches. , (3a) are display switches for instructing the display device (2) to display the control contents, and others are control input switches. (4) is a CPU, (6) is a display synthesizing circuit, and (8) is a switch input circuit. Each of the switches (3a) to (3)
Together with e), it constitutes a means of inputting control contents. (9) is a timer circuit, (10) is a communication control circuit, and (11) and (12) are connection terminals for connecting the input control device (1) and the display device (2), respectively. ) Is, for example, a video input terminal of a television, and the display content is output from the connection terminal (11) as a composite video signal. (13)
Is a communication transmission line, (14) is a load control device, (15) is a load such as lighting equipment, and (16) is a communication control circuit.

In this device, the control input switches (3b) to (3
The setting state of e) is input to the switch input circuit (8),
The content is output to the CPU (4). The CPU (4) performs control by transmitting a control signal of the load (15) to the load control device (14) via the communication transmission line (13) according to the content of the load. However, control input switches (3b) to (3
If the operation is in the prohibition state that prohibits the control of the load (15) based on the setting input of e), the control input switch (3b) ~
The control by (3e) is not possible and the switch operation is invalid. Whether or not this operation is prohibited is determined by the CPU (4).
It is stored in. The display synthesizing circuit (6) displays the operation prohibited state or the control content indicating the operable state according to the presence or absence of the operation prohibited state.

Here, for example, when the operation is prohibited, the control contents are not displayed on the display device (2). If you want to control the load (15) at this time, first display device (2)
If the display indicating the control content is not displayed on the screen, the operator himself does not know what kind of control is being performed.
The display of control contents is instructed by operating the display switch (3a). Moreover, since the operation is prohibited, the load (15) cannot be controlled unless this condition is released. In this embodiment, the releasing means for releasing the operation prohibited state is constituted by the display switch (3a). That is, the operation prohibition state is released by instructing the display of control contents by operating the display switch (3a), and the control input switch (3b) is released.
~ (3e) is effective.

In addition, the timer circuit (9) automatically counts up at a fixed timing, resets the timer counter in response to a reset request from the CPU (4), and resets the timer counter value in response to a read request from the CPU (4). CPU (4)
Is output and the count up is stopped when the timer counter overflows. Communication control circuit (10) is CPU
The data is sent to the communication transmission line (13) in response to the transmission request from (4), while the data on the communication transmission line (13) is received and the CP is sent.
The contents are output to U (4). The load control device (14) controls the load (15) according to the contents of the data on the communication transmission line (13) via the internal communication control circuit (16), and on the other hand, transmits the state of the load (15) by communication. Send data to the road (13).

The operation of the CPU (4) relating to the operation prohibition / cancellation in the input control device having such a configuration will be described based on the flow chart shown in FIG.

First, in step (30), it is determined whether or not the operation is prohibited. If the operation is not prohibited, the process proceeds to step (31), and if the operation is prohibited, the process proceeds to step (39). Now, assuming that the operation is prohibited, the process proceeds to step (31), where it is judged whether there is any switch input. If there is input, the input switch is checked at step (32). It is judged whether or not the display switch (3a) is selected. When the input switch is not the display switch (3a), the decoding process for the switch input is performed in the step (33), and the control content display of the display device (2) corresponding to the switch input is changed or the load control is performed. A control signal is transmitted to the device (14). Then step (34)
The reset request is output to the timer circuit (9), and the timer circuit (9) is reset.

If there is no switch input at step (31), the step (35) requests the timer circuit (9) to read the value of the timer counter. Then, in step (36), it is judged whether or not the value of the timer counter overflows, and if it overflows, step (3
In 7), the display output control of the image showing the operation prohibition display is performed to the display synthesizing circuit (6), and the operation is prohibited in step (38). After that, even if the control input switches (3b) to (3e) are operated, the load is not controlled and erroneous operation can be prevented.

On the other hand, if it is determined that the operation is prohibited at step (30), the presence or absence of the input of the display switch (3a) is determined at step (39). If there is no input, the operation prohibited state is continued and the control is continued. The operation of the input switches (3b) to (3e) remains invalid. When the display switch (3a) is input, an image showing the operable state is displayed on the display synthesizing circuit (6) at the step (40), for example, the output of the current load state or a control content pictorial display. Take control. Then, in step (41), a reset request is output to the timer circuit (9) for resetting, and in step (42) the operation prohibited state is released. When the step (30) is executed again in this state, the process proceeds to the step (31), the above-described operation is performed, and the control by the input control switches (3b) to (3e) is performed. However, if the display switch (3a) is input in this state,
The operation proceeds to step (37) from step (32) and the operation prohibited state is set. That is, the operation prohibition state can be set by the display switch (3a).

According to such an operation, normally, after operating the predetermined control input switches (3b) to (3e) for load control, the result becomes "No" at step (31), and the final control input, that is, immediately before. After a predetermined time has elapsed from the time when the control input was made, the timer counter of the timer circuit (9) overflows, so that "Yes" is given at step (36), and the operation prohibition status display output at step (37) and the step (38) The change to the operation prohibited state is executed to prevent erroneous operation.

On the other hand, when a request to release the operation-prohibited state by inputting the display switch (3a), "Yes" is given in step (39), and the operation-enabled display of step (40) and the operation-prohibited state of step (42) are output. To cancel.

FIG. 3 shows an example of a display image displayed on the display device (2) by the display synthesizer circuit (6) when the operation is prohibited. The message “please press the display switch” prompts the control contents to be displayed. At the same time, this means that the operation prohibition state is released by inputting the display switch.

FIG. 4 shows an example of a display image displayed by the display composition circuit (6) when the operation prohibition is released, that is, when the operation is possible,
For example, pictorial displays of devices connected to this control device (1), such as lighting, entrance locks, baths, etc., are displayed, and operation monitors and controls are performed based on the displays.

In this way, the display is made according to the presence or absence of the operation prohibited state, the operator unconsciously releases the operation prohibited state to control the load, and automatically when the switches are not operated for a predetermined time. The operation is prohibited to prevent erroneous operation.

FIG. 5 shows another embodiment of the present invention, showing a case in which video output is turned on and off instead of switching between the operation prohibited display image and the operable display image by the display synthesizing circuit (6). .

In FIG. 5, (1) to (6) and (8) to (16) are the same as in the above embodiment. (7a) is a display stop circuit that turns on and off the output from the display synthesizing circuit (6) to the display device (2) depending on the presence or absence of the operation prohibited state. In such a configuration, when the operation is prohibited, the output from the display synthesis circuit (6) to the display device (2) is stopped, so that nothing is displayed on the display device (2) and the operator When the user wants to perform load control, the display switch (3a) first instructs the display of the control image. Then, the display stop circuit (7a) sends an image output to the display device (2) to display an image, and the operation of the display switch (3a) at this time releases the operation prohibition state and the load is controlled.

FIG. 6 shows another embodiment of the present invention.
An infrared remote controller is used as an input means, the display device (2) is integrated in the control device (1), and the display device (2) is used instead of changing the display image according to the operation prohibited state.
The figure shows the case where the power of the power supply is turned on and off.

In FIG. 6, (7b) is a power supply stop circuit, (8a) is a remote control receiving circuit, (8b) is a remote control transmitter, and switches (3a) to (3e) are provided.

In this case, the infrared remote control transmitter (8b) can be used to operate the switch from a remote location.
Further, it can be used not only when the display device (2) is externally attached but also when it is built-in. Further, instead of the image control by the display synthesizing circuit (6), the display of the operation prohibition and the display of the operation enable can be switched by turning the display device (2) on and off.

FIG. 7 is a flow chart when initialization processing is performed in the control device having the configuration of FIG.

First, the operation is prohibited at step (50). In step (51), the output of the display when the operation is prohibited is controlled by the display synthesis circuit (6). In step (52), an initial monitor process necessary for initializing the control device (1) is performed. In step (53), release the operation prohibited state. In step (54), the output of the display when the display composing circuit (6) is operable is controlled.

As described above, the operation is prohibited during the initial monitor process of the step (52), and the image display when the operation is prohibited as shown in FIG. 8 is performed. Then, instead of inputting the display switch (3a), the operation prohibiting state is released and the output control of the image display when the operation is possible is performed by ending the step (52).

In the above embodiment, the display switch (3a)
Is used as a prohibition release key when operation is prohibited and as a prohibition setting key when operation is possible, but it is also possible to use a separate switch.

In addition, the change from operation prohibition to operation is made only by the display switch (3a), but any switch (3a) to
It can also be enabled by (3e).

Furthermore, the change from the operable state to the operation-inhibited state is performed by operating the display switch (3a) or the overflow of the timer circuit (9), but it is also possible to make the change only by either of them.

Although the one for controlling the lighting equipment and the like is shown, various sensors may be connected and monitored.

[Effects of the Invention] As described above, according to the present invention, the timer means for measuring the time from the time when the final control input is made by the input means for inputting the control contents of the equipment is provided, and the predetermined time by the timer means elapses. After the time point, the prohibition means for prohibiting the control by the instruction from the input means is provided, and the release means for canceling the prohibition state by the prohibition means is provided, so that the control is always prohibited except when the device is temporarily controlled. Therefore, there is an effect that it is possible to obtain an image display type control device that can easily prevent malfunction regardless of the type of display device.

Also, by configuring the release means by the display switch for giving an instruction to display the control content, the operator can release the control prohibited state and control the device without being aware of it, so that the operability is improved. effective.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, and FIG. 2 is a flow chart showing the operation of the apparatus of the embodiment, and FIG.
FIG. 4 is an explanatory view showing an example of a display image in the embodiment of FIG. 1, FIG. 5 is an overall configuration diagram showing another embodiment of the present invention, and FIG. 6 is another embodiment of the present invention. FIG. 7 is an overall configuration diagram showing an example, FIG. 7 is a flow chart showing an operation at the time of initialization processing in the apparatus shown in FIG. 1, and FIG. 8 is an explanatory diagram showing an example of a display image in the operation shown in FIG. FIG. 9 is a block diagram of a conventional image display type control device, FIG. 10 is an overall connection diagram of this conventional device, FIG. 11 is a circuit diagram of a current detection circuit in this conventional device, and FIG. 12 is this conventional device. 2 is a flow chart showing the operation of the device. In the figure, (1) is a control device, (2) is a display device,
(3a) is a display switch, (3b) to (3e) are control input switches, (4) is a CPU, (6) is a display synthesis circuit, (8) is a switch input circuit, (9) is a timer circuit, (14) ) Is a load control circuit, and (15) is a load. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (2)

(57) [Claims] 1. A control means for monitoring and controlling equipment and displaying the control content on an image display device, an input means for inputting the control content of the equipment to the control means, and a final control input by the input means. Timer means for measuring time from the point of time, prohibiting means for prohibiting device control of the control means by the control content input from the input means after the predetermined time is measured by the timer means, device by the prohibiting means A screen display type control device comprising release means for releasing the control prohibited state. 2. The image display type control device according to claim 1, wherein the releasing means is constituted by a display switch for inputting an instruction to display the control contents of the control means on the image display device.