JPH053589A - Terminal equipment for remote control system - Google Patents

Abstract

PURPOSE:To provide the terminal equipment of the remote control system easy to see an operation object and an operation switch preventing a misoperation, easy to execute wiring, as well as capable of preparing the display data preparation file of a section area to be displayed by a liquid crystal display device using an external preparation means. CONSTITUTION:A liquid crystal display device 10 displays a section area based on the display data to be sent from a signal processing circuit 11 to a liquid crystal driver 12. A panel switch 13 supplies an operation signal to the signal processing circuit 11 through a key input matrix circuit 14 when the displaying section area is touched. The signal processing circuit 11 returns the monitor input which is operation information to the central control device of the remote control system through a reception and transmission circuit 18. The display data file in the section area to be displayed by a liquid crystal display device 10 is transferred from a personal computer through a communication control circuit 17 and stored in a RAM15. The liquid crystal display device 10 is provided with a back light so that it can be recognized in a dark place.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal of a remote control system.

[0002]

2. Description of the Related Art FIG. 10 shows a basic example of a remote control system using time division multiplex transmission. In this system, a plurality of control terminals are connected to a transmission line 4 consisting of a pair of lines from a central control unit 1. 3 and the monitoring terminal 2 are connected, a load, here a load 5, is connected to the control terminal 3, and an operation switch 6 is connected to the monitoring terminal 2.

The operation of this system will be described with reference to the transmission signal shown in FIG.
The transmission signal Vs having a format as shown in FIG. 11A is transmitted from the control terminal 3 to control the control terminal device 3 and the monitoring terminal device 2. That is, the transmission signal Vs
Is a start pulse ST indicating the start of signal transmission, mode data MD indicating the signal mode, address data AD,
It is a multi-pole (± 24V) time-division multiplexed signal composed of control data CD for controlling the load, checksum data CS for detecting a transmission error, and a signal return period WT for setting the return period of the return data ((24 in FIG. 11). b)), data is transmitted by pulse width modulation. In the control terminal device 3 and the monitoring terminal device 2, when the address data AD of the transmission signal Vs received via the transmission line 4 matches the preset own address, the transmission signal Vs The control data CD is taken in, and the return data is returned as a current mode signal (a signal sent by short-circuiting the transmission lines 4 via an appropriate low impedance) in synchronization with the signal return period WT of the transmission signal Vs. It is supposed to do.

On the other hand, the central control unit 1 is provided with a dummy signal transmitting means and an interrupt processing means. The dummy signal transmitting means constantly transmits the transmission signal Vs in which the mode data MD is in the dummy mode. Further, the interrupt processing means is adapted to, when the interrupt signal Vi as shown in FIG. 11C is returned, return the reply data from the monitoring terminal device 2 which has generated the interrupt signal Vi.
That is, the monitoring terminal 2 is connected to the switch output of the operation switch 6, and when the switch output is turned on or off, the interrupt terminal Vi is transmitted according to the change of the switch input. In response to the interrupt signal Vi, the central controller 1 transmits a transmission signal Vs for address search for each group address in order to search for the terminal device 2 that has caused an interrupt. The interrupting monitoring terminal 2 returns its own unique address as reply data when the group to which it belongs is accessed.

By this return, the central control unit 1 can determine the interrupting monitoring terminal device 2, then transmits the transmission signal Vs having the address data AD of the monitoring terminal device 2 to transmit the monitoring terminal device 2. The device 2 is accessed and the state of the switch output connected from the monitoring terminal device 2 is returned as reply data. Based on the reply data returned from the monitoring terminal device 2 in this way, the central controller 1 sends the control data CD to the control terminal device 3 for controlling the load 5 corresponding to the monitoring terminal device 2. The transmission signal Vs including the control data CD is generated and transmitted.
Each load 5 is individually turned on / off by performing time division multiplex transmission to the control terminal 3 via the.

In the central control unit 1, a correspondence relation is set with the control terminal unit 3 to which the load 5 to be controlled is connected in response to the reply data from the monitoring terminal unit 2, and the control is performed according to this correspondence relation. The load 5 of the mobile terminal device 3 is turned on / off. Here, conventionally, when performing on / off control of loads such as a plurality of lights, a selector switch device 7 that collects the monitoring terminal devices 2 in one place and is provided with respective operation switches and can be operated in one place What was called was used.

[0007]

However, when a large number of operation switches are provided side by side, it becomes unclear which operation switch corresponds to which load, and there is a case where the operation switch is turned on / off by mistake. Further, even if the transmission wiring 4 can be formed for each of the monitoring terminals 2 by the two transmission lines 4, there is a problem that it takes time if the number is large.

The present invention has been made in view of the above-mentioned problems, and its purpose is to identify the operation target and the operation switch at a glance so that there is no erroneous operation and the wiring control is easy. To provide the terminal of.

[0009]

To achieve the above object, the present invention connects a plurality of individually addressed terminals to a central control unit via a transmission line consisting of a pair of lines. , A signal from the central control unit to each terminal unit, which sets address data for individually designating each terminal unit, transmission data to each terminal unit, and a period for receiving reply data from the terminal unit to the central control unit Controls the load connected to the other terminal according to the monitoring input input to one of the terminal units that are paired with the correspondence relationship set by address so that the transmission signal including the return period is time-division multiplexed. The terminal device used in the remote control system is configured to display a segmented area in which the load to be controlled is arranged, and a light transmission type panel switch arranged on the display surface of the liquid crystal display. When a panel switch on the segmented area displayed on the liquid crystal display is operated, the operation signal is taken in as a monitoring input for controlling the load of the segmented area and is returned to the central controller as reply data. And a circuit section.

A liquid crystal display equipped with a backlight is used.

[0011]

Thus, according to the terminal device of the remote control system of the present invention, by simply touching a section area displayed on the liquid crystal display, a panel switch which is operation information of the load corresponding to the section area is displayed. The operation signal is taken into the terminal circuit unit as a monitoring input and can be returned as reply data in response to the call of the central control unit.

Therefore, since the display surface and the operation surface of the divided area coincide with each other, the correspondence relationship becomes clear, which makes it unlikely that a conventional error occurs. In addition, since the transmission wiring for the transmission line, which is required when using a plurality of monitoring terminals, is not required, the wiring construction becomes easy. Further, by providing a backlight, it can be used in a dark place.

[0013]

The present invention will be described below with reference to the drawings. Figure 1
Shows a configuration of a terminal device circuit portion of the terminal device T of the remote control system of the present invention. The liquid crystal display device 10 with a backlight for displaying a screen of a divided area and the CPU for performing signal processing of the terminal device. Arranged on the screen surface of the liquid crystal display 10; and a signal processing circuit 11 including the above, a liquid crystal driver 12 that drives the liquid crystal display 10 by writing display data by the signal processing circuit 11 and displays a screen based on the display data. Panel switch 13 and this panel switch 1
The key input matrix circuit 1 which detects the XY coordinate points of the operation position 3 and gives the operation signal to the signal processing circuit 11.
4, a RAM 15 for rewritably storing display data and other data, and a transmission signal Vs transmitted from the central control device 1 via the transmission line 4 and receiving the signal Vs to the signal processing circuit 11, and further performing signal processing. A receiving / reply circuit 18 for short-circuiting the transmission line 4 via the impedance based on the reply data from the circuit 11 and returning it as a reply signal in the current mode.
And a reset circuit 16 for resetting the signal processing circuit 11 at the time of system start, and for RS232C for further communicating with a data creating means such as an external personal computer (of course, RS485 may be used). The communication control circuit 17 of FIG.

As shown in FIG. 2, the terminal T has a panel of the liquid crystal display 10 arranged on the front surface of the body 20, a RS232C connector 21 on the rear side of the body 20, and both sides of the rear upper surface. Has a connection terminal 22 for connecting the transmission line 4 of the remote control system, and a power supply terminal 23 for connecting an external power supply to obtain the power supply inside the terminal. A mounting frame 20 for a triple module of a general wiring device is mounted around the front of the body 20. The mounting frame 24 is for mounting to a switch box (not shown), and mounting holes 25 through which fixing screws (not shown) are inserted are formed in the upper and lower frame sides.

In the present embodiment, the normal mode in which the terminal device actually operates and the panel switch 1 for the divided area
The setting mode for setting the relationship between the operation of 3 and the control mode and the like, and the entry mode for creating while displaying the display data such as the division areas and characters to be displayed on the liquid crystal display 10 on the screen of the liquid crystal display 10. In addition, communication function, input function to read the display data file of the divided data from the external data generator, password input function to limit the operation, and display the operating state of the target load with predetermined pictures, characters, etc. There is a switching function for switching and a mode for setting options such as a function for displaying a moving image. Switching and setting of these modes are based on the function keys displayed on the liquid crystal display 10. To do.

First, in the normal mode, the signal processing circuit 11 uses the display data of the main screen registered in advance to
The whole map of the place where the remote control system is installed and the contents of the function keys are displayed. FIG. 3 shows an example of the parent screen A. In this state, the signal processing circuit 1
1 is in a standby state for fetching the key input shown in the flowchart of FIG. The remote control system is ready to receive the transmission signal Vs.

Here, in the screen of FIG. 3, "design""management"
This is a screen for group control or pattern control of the entire load in the divided area displayed with characters and a frame such as "meeting room". Details of these divided areas are shown in advance in the main screen A as shown in FIG. Is divided into multiple (in the example shown,
4) and can be displayed on the child screens B ₁ ... Created corresponding to the respective divided areas.

This screen switching is performed in the main screen display state,
Function keys displayed in screen bottom may press the position of "pages", the signal processing circuit 11 determines the operation contents by reading the operating position of the panel switch 13 through the key input matrix circuit 14, the child picture B ₁ ... of The child screen B ₁ ... Is displayed based on the display data. In this case, the sub-screen B ₁ that is displayed each time the "Page" key is operated ...
Is switched to cyclic.

To switch from the child screen display to the parent screen display, press the position of the function key displayed as "parent". The signal processing circuit 11 recognizes this operation and switches the screen to the parent screen A. The display data is given to the liquid crystal driver 12 to switch to the original parent screen A. The sectioned area on the detailed map displayed on the child screen B ₁ ... Shows an area for turning on / off individual loads in the sectioned area.

Therefore, when the display position of the divided area on the parent screen is pressed, a corresponding address for group control or pattern control of the loads 5 belonging to this divided area is received by the central control unit 1 via the receiving / replying circuit 18. The central control unit 1 sends control data to the control terminal 3 corresponding to the load 5 by the transmission signal Vs to turn the load 5 on or off.

Similarly, when the display position of the divided area on the sub-screen B ₁ ... Is pressed, the corresponding address for controlling the load 5 belonging to this divided area is returned to the central control unit 1 through the receiving / replying circuit 18, The central controller 1 sends control data to the control terminals 3 corresponding to the loads 5 by the transmission signal Vs to turn the loads 5 on or off. The display during the pattern or group control or the individual load 5 status display is based on the control data CD transmitted from the central controller 1 to the terminal T of the present invention, and the display of the divided area is being controlled or is on. If there is, it is performed by switching to the reverse display, and the control state of the divided area and the state of the load 5 can be known from this display state.

Next, the correspondence setting between the divided areas and the group control will be described. For example, in FIG. 3, when the position of the function key displayed as “setting” is pressed, the signal processing circuit 11 that recognizes this operation switches the operation mode to the setting mode, and first, as shown in FIG. The function keys necessary for setting are displayed along with the broken lines.

On this screen, "→""←""↑"
When the cursor on the screen is operated by operating the position of the cursor key indicated by "↓" and the "line" key is operated, the signal processing circuit 11 operates the liquid crystal display 12 through the liquid crystal driver 12 based on this operation. Draw an area shown by a solid line in each area on the screen of 10, and after the creation of this area is completed, operate the key labeled "Setting" to select and set the address assigned to the group control. The data of the correspondence relationship between the address of the group control and the address of the control terminal 3 of the load 5 belonging to the division area is returned to the central controller 1, and the setting contents are set in the table showing the relationship of the addresses of the central controller 1. You can write The setting contents can also be canceled by operating the key displayed as "Cancel". Addresses can be assigned to individual loads 5 by the same operation.

After the setting is completed, if the key displayed as "EXIT" is operated, the signal processing circuit 11 recognizes this operation and returns to the original screen shown in FIG. return. In addition, when the function key displayed as "Fill" in FIG. 3 is operated, the mode for creating a diagram of the divided area is entered. In this mode, the same key display as in FIG.
It is possible to create a diagram of the divided area while displaying it on the screen with the "line" key, and in the same way, it is possible to create the display characters with a PxQ dot matrix as shown in FIG. The display data of the screen is stored as a display data file in the RAM 15 by the signal processing circuit 11 when the “setting” key is operated, and the screen display based on this display data can be performed.

Further, when the "option" function key is created on the screen of FIG. 3, the operation mode is shifted to the option mode, and the function such as the communication function, the map input function, the password input function, the pictogram switching function, and the moving image switching function are selected. You will be able to. The communication function is a function to be used as a display device for other interfaces in addition to being used as a terminal device for controlling the load 5 of the normal lighting, and is RS232C (of course, RS485 may be used).
It is possible to receive a command from the interface and switch the display screen based on this command to display the screen corresponding to the interface.

The map input function is created by connecting a personal computer PC, which is an external data creating means, to the terminal T of the present invention using the RS232C communication control circuit 17 as shown in FIG. This is a function of reading the display data file of the diagram of the divided area and storing it in the RAM 15. In other words, by creating a map of the divided area using a high-level program such as map creation software FD on the personal computer PC, it can be created more efficiently than the drawing of the divided area on the terminal T side, and moreover, detailed It becomes easy to obtain the figure.

In the password input function, since the operation control of the load 5 of the lighting is performed also in the common part, the floor, etc., when the terminal T of the present invention is installed in such a place, it may be operated by mischief. . Therefore, in order to prevent mischief, it is a function to prevent the switch operation unless a predetermined password is entered. Even when this function is set, the operating state of the load 5 can be displayed. Of course.

The pictogram switching function and the moving image switching function are functions for displaying the state in the form of pictograms or moving images when the load state or the control state is difficult to understand in the reverse display. That is, as shown in FIG. 9, the display control software program PR is activated to specify the display method, and the RAM 1
An on-display data file area 15a storing, for example, on-state display data of each load 5 in a predetermined area 5
₁ and the off display data file area 15b ₁ for storing the off state display data, the display data is read out according to the load state, and the display by pictograms or moving images is performed based on this display data.

[0029]

According to the present invention, by simply touching a section area displayed on the liquid crystal display, the operation signal of the panel switch, which is the operation information of the load corresponding to the section area, is input to the terminal circuit section as a monitoring input. It is taken in and can be returned as reply data in response to the call of the central control unit, and since the display surface of the divided area and the operation surface are the same, the correspondence relationship is clear, and therefore the error as in the past This has the effect of preventing the occurrence of the above-mentioned problem, and since there is no need for the transmission wiring of the transmission line as in the case of using a plurality of monitoring terminals, there is the effect of facilitating the wiring work.

Further, by using a liquid crystal display equipped with a backlight, it can be easily used even in a dark place.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing the appearance of an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a display screen of a liquid crystal display according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a relationship between a parent screen and a child screen of the liquid crystal display according to the embodiment of the present invention.

FIG. 5 is a diagram showing a screen example of a liquid crystal display device for explaining the operation of the embodiment of the present invention.

FIG. 6 is a flowchart of an embodiment of the present invention.

FIG. 7 is an explanatory diagram of a character creation example according to an embodiment of the present invention.

FIG. 8 is an explanatory diagram of a map input function according to an embodiment of the present invention.

FIG. 9 is an explanatory diagram of a pictogram input function according to an embodiment of the present invention.

FIG. 10 is an overall configuration diagram of a remote control system.

FIG. 11 is an explanatory diagram of a transmission signal used in the remote control system.

[Explanation of symbols]

10 Liquid crystal display 11 Signal processing circuit 12 LCD driver 13 panel switch 14 key input matrix circuit 15 RAM 16 Reset circuit 17 Communication control circuit 18 Receive / reply circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location H04Q 9/00 341 Z 7170-5K 361 7170-5K

Claims (2)

[Claims] 1. A plurality of terminal devices each having an address set individually are connected to a central control device via a transmission line consisting of a pair of lines, and the central control device sends each terminal device to each terminal device. In order to perform time division multiplex transmission of a transmission signal including separately designated address data, transmission data to each terminal device, and a signal return period for setting a period for receiving reply data from the terminal device to the central control device, A terminal used for a remote control system in which a load connected to the other terminal is controlled in response to a monitoring input input to one of the terminals that form a pair with a corresponding relationship set by an address. A liquid crystal display that displays the segmented area where the target load is located, a light-transmissive panel switch that is located on the display surface of the liquid crystal display, and a panel switch on the segmented area that is displayed on the liquid crystal display. Tsu the switch is the operation terminal of the remote control system comprising a terminal circuit portion for returning the operation signal as a reply data to takes in the central control device as a monitor input for controlling the loading of the segment area. 2. The remote control system terminal according to claim 1, wherein the liquid crystal display is provided with a backlight.