JPH09149478A - Terminal equipment for switch and remote control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily change display on a name plate without bothering to go to the installing place of a terminal equipment for a switch by displaying various kinds of characters based on display data in a transmission signal including its own address sent from a transmission unit. SOLUTION: A personal computer PC connected to the transmission unit 1 is operated to input the address of the terminal equipment for the switch 2 changing characters and codes as the name plate and a character code expressing the characters and codes as the desired name plate in the transmission unit 1. The transmission unit 1 displays the characters and codes as the desired name plate on the liquid crystal display part 2b of the terminal equipment for the switch 2 of a prescribed address among terminal equipments for switches distribute-installed remotely. Thereby there is no need bother to go to the scene to change the name plate one by one and the name plate is speedily and easily changed from one centralized place.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art FIG. 5 is a system configuration diagram showing a conventional remote control system, and FIG. 6 is an explanatory diagram showing transmission signals. Conventionally, there is a remote control system that performs load control from a distance using time division multiplexing transmission. As shown in FIG. 5, the conventional remote control system includes a transmission unit 1, a plurality of switch terminals 2, and a plurality of load control terminals 3. The transmission unit 1 receives power from a commercial power source and sends a transmission signal to the two signal lines L. The switch terminal 2 includes a control operation unit 2 _a such as a wall switch, a red indicator light 2 _r for displaying a state that is turned on or off based on a transmission signal, and a green indicator light 2 _g , and a signal line L. Is connected to the control operation unit _2a to monitor the operation. The load control terminal device 3 is connected to the signal line L and internally includes a switch unit (not shown) that is turned on / off based on a transmission signal.
A switch section (not shown) inside the load control terminal 3
Is connected to an external load A such as a lighting device so that the commercial power supply is turned on / off.

By the way, the above remote control system operates as follows. The transmission unit 1 sequentially transmits the transmission signal V _{S in the} format shown in FIG. 6A as one frame for each address, and monitors and controls the switch terminal 2 and the load control terminal 3. That is, the transmission signal V _S includes a start pulse ST indicating the start of signal transmission, mode data MD indicating the signal mode, address data AD indicating the destination address, and control data CD controlling the load.
Is a time-division multiplex transmission signal of bipolar (± 24 V) including checksum data CS for detecting a transmission error and a signal reply period WT for setting a reply period of reply data, and pulse width modulated data To transmit.

Switch terminal 2 and load control terminal 3
Is the transmission signal V received via the signal line L, respectively.
_When the address data AD of _S coincides with its own preset address, the control data CD of the transmission signal V _S is fetched and the reply data to be returned is the signal reply period of the transmission signal V _S. In sync with WT,
It is returned as a return signal of a current mode signal (a signal that is sent out by shorting the lines of the signal line L via an appropriate low impedance).

The transmission unit 1 comprises a dummy signal transmitting means and an interrupt processing means. The dummy signal transmitting means uses the transmission signal V in which the mode data MD is set to the dummy mode.
Always send _S. When the interrupt signal V _i as shown in FIG. 6B is returned, the interrupt processing means transmits the transmission signal V _S for sending back the reply data from, for example, the switch terminal 2 that generated the interrupt signal V _i. Is sent.

The switch terminal 2 sends out an interrupt signal V _i when the control operation section 2 _a is turned on or off and the state of the switch terminal 2 changes. The transmission unit 1 searches for the interrupted switch terminal 2 in response to the interrupt signal V _i ,
A transmission signal V _S for address search is transmitted for each group address. Switch terminal device 2 that interrupted
Returns its own unique address as reply data when the group to which it belongs is accessed.

In response to this reply, the transmission unit 1 determines the interrupting switch terminal 2 and then sends out the transmission signal V _S having the address data AD of the switch terminal 2 to output the switch signal. Access terminal 2,
Operation data of the control operation unit 2 _a is returned from the switch terminal device 2 as reply data.

In this way, the transmission unit 1 controls the load control terminal device 3 for controlling the load A corresponding to the switch terminal device 2 based on the operation data returned from the switch terminal device 2. The data CD is created, and the transmission signal V _S including the control data CD is _sent to the signal line L.
Each load A is individually turned on / off by being sent to the load control terminal device 3 via. That is, the transmission unit 1 is provided with a correspondence table between the switch terminal 2 and the load control terminal 3 to which the load A to be controlled is connected, and is returned from the switch terminal 2 based on the correspondence table. The load A of the load control terminal device 3 is turned on / off in response to the operation data.

The load control terminal 3 performs on / off control of the load A connected to itself, and when the control state of the load control terminal 3 changes, the control operation unit _2a of the switch terminal 2 is operated. As in the case, the interrupt signal V _i is transmitted.
The transmission unit 1 responds to this interrupt signal V _i by
In order to search the interrupted load control terminal 3, a transmission signal V _S for address search is sent for each group address. The interrupted load control terminal device 3 returns its own unique address as reply data when the group to which it belongs is accessed.

With this reply data, the transmission unit 1
The load control terminal device 3 that has interrupted is determined, and then the transmission signal V _S having the address data AD of the load control terminal device 3 is transmitted to access the load control terminal device 3, The control state data is returned from the load control terminal 3 as return data.

In this way, the load control terminal device 3 returns
Based on the transmitted control status data, the transmission unit 1
Corresponds to the control status data of the load control terminal 3.
Control the indicator lamp for the status display of the switch terminal 2.
In order to create control data CD for the switch terminal 2.
Transmission signal V including the control data CD
_STo the switch terminal 2 via the signal line L.
If the load A is turned on, the red indicator light 2_rTo
Lights up and green indicator light 2_gWas turned off and load A was turned off.
If there is red indicator 2_rTurn off and green indicator light 2_gTurn on
You. That is, the transmission unit 1 and the switch terminal 2
Pair with the load control terminal 3 to which the load A to be controlled is connected
Based on the correspondence table and returned from the load control terminal 3.
Switch terminal in response to the received control status data
Red indicator light 2 for status display 2_rAnd green indicator light 2_gAnd control
I do.

Further, the control operation unit 2 of the switch terminal 2
_In order to insert a name plate for each purpose such as "first meeting room", "common reception room", "corridor", on the surface of a,
A transparent insertion portion (not shown) is formed so that the name plate can be replaced depending on the application.

On the other hand, although not shown, the following single wall switch has been conventionally available. That is, this is a wall switch in which a liquid crystal display surface is formed on the surface of an operating portion such as a push button of a single wall switch, and a liquid crystal display is performed on the liquid crystal display surface as a name plate.

[0014]

However, in the switch terminal 2 in the conventional remote control system, for example, when the name plate on the surface of the control operation unit _2a is changed over the entire building, It is troublesome because you have to go to the site where the switch terminals 2 are installed one by one and replace the name plates one by one. In addition, even if there is a wall switch that allows the display as a name plate to be displayed on the liquid crystal display, when changing the display content, please bring a dedicated data rewriting device to the site where the wall switch is installed one by one. There is a problem that it is troublesome because it is necessary to go and update the display data one by one.

The present invention has been made to solve the above problems, and the purpose thereof is to easily change the display of the name plate without going to the installation location of the switch terminal. It is to provide a remote control system that is easy to use and easy to use.

[0016]

In order to solve the above problems, the present invention provides a transmission unit and a transmission unit, which is connected to the transmission unit via two signal lines. A switch terminal used in a remote control system including a plurality of load control terminals is provided with a display unit for displaying various characters based on display data in a transmission signal including a self address transmitted from a transmission unit. It is characterized by that.

According to a second aspect of the present invention, the transmission unit is provided with a plurality of switch terminals and a plurality of load control terminals connected to the transmission unit via two signal lines. The remote control system is characterized in that the switch terminal is provided with a display section for displaying various characters based on display data in a transmission signal including a self address transmitted from the transmission unit.

According to a third aspect of the present invention, the transmission unit is provided with a plurality of switch terminals and a plurality of load control terminals connected to the transmission unit via two signal lines. In the remote control system, the transmission unit includes address data for accessing the terminal,
A switch is provided that includes a transmission unit that transmits a transmission signal that includes display data that gives a display instruction to the terminal device, control data that gives a control instruction to the terminal device, and a reply period that causes the terminal device to send reply data. The terminal device for reception receives at least display data in a transmission signal including its own address, and at the same time, transmits various kinds of operation data based on the display data received by the operation transmission section and the operation transmission section that returns reply data indicating the self state during the reply period. A display unit for displaying a character, and a control operation unit for changing the self-state, the load control terminal unit, a control transmission unit for receiving at least control data in a transmission signal including a self-address, And a switch unit that operates based on control data received by the control transmission unit.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a switch terminal and a remote control system according to the present invention will be described below with reference to FIGS.
This will be described in detail with reference to FIG.

FIG. 1 is a system configuration diagram showing a remote control system, FIG. 2 is a block diagram showing the internal configuration of a switch terminal, FIG. 3 is a flow chart for explaining the operation of the remote control system, and FIG. 4 is a transmission signal. FIG. In addition,
1 to 4, the same parts as those in the remote control system described in the related art with reference to FIGS. 5 and 6 are designated by the same reference numerals.

The remote control system, as shown in FIG.
The transmission unit 1, the plurality of switch terminals 2, and the plurality of load control terminals 3 are included.
Also, the configuration of the switch terminal 2 is different from the conventional one.

The transmission unit 1 is different from the conventional one in that it has a serial port 1a and a display data sending means (not shown). The serial port 1a receives the character code from the personal computer PC. The display data transmitting means transmits the character code received from the personal computer PC to the transmission signal V _S which is a time division multiplex transmission signal of bipolar (± 24 V) as shown in FIG.
It is incorporated as display data DD for giving a display instruction to the switch terminal 2 and sent out.

[0023] The switch terminal unit 2 is characterized differ from those of conventional liquid crystal display unit 2 _b is provided in the operation portion surface of the control handle 2 _a, inside, and character code storage unit 2 _f, The configuration includes a liquid crystal driver unit 2 _d . In FIG. 1, B is a continuous mounting frame for wiring equipment, and up to three switch terminals 2 can be continuously mounted on the continuous mounting frame B.

The switch terminal 2 is as shown in FIG.
The control operation unit 2_aAnd a liquid crystal display unit 2 corresponding to the display unit
_bAnd the signal processing unit 2_cAnd the operation transmission unit 2_dAnd address
Memory 2_eAnd the character code storage unit 2_fAnd the liquid crystal
Driver 2_gAnd input port 2 _hAnd

The control operation unit 2 _a, when the liquid crystal display unit 2 _b is pressed to turn on the electrical contacts sunk together with the liquid crystal display unit 2 _b, to turn off the electrical contacts again return the pressing is removed . The liquid crystal display unit 2 _b displays characters such as characters and symbols based on the electric signal output from the liquid crystal driver 2 _g . The signal processing unit 2 _c is composed of a microprocessor or the like and controls the entire switch terminal 2.

The operation transmission section 2 _d is connected to the signal line L, and is a transmission signal V as shown in FIG.
_S is received, the mode data MD, the address data AD, the control data CD, the display data DD, and the checksum data CS are converted into a normal Low / High digital signal and output to the signal processing unit 2 _c . The return data based on the instruction from the signal processing unit 2 _{c is} converted into the return signal of the current mode signal and is sent to the signal line L in synchronization with the signal return period WT of the transmission signal V _S.

The address storage section _2e is a section for storing a unique address of itself and is constituted by a DIP switch (not shown) or the like. Character code storage unit 2
_f is a RAM, which stores a character code which is the display data DD sent from the transmission unit 1 to its own switching terminal 2. of course,
The character code storage unit 2 _f is made non-volatile by backing up with a power failure compensation battery or the like.

The LCD driver 2 _g is character outputs an electrical signal conforming to the character code stored in the character code storage unit 2 _f on the liquid crystal display unit 2 _b, it is stored in the character code storage unit 2 _f characters such as characters and symbols according to the code, allowed to display on the liquid crystal display unit 2 _b. The input port 2 _h monitors the presence or absence of an ON signal output by operating the control operation unit 2 _a, and when the ON signal is input, notifies the signal processing unit 2 _c of that fact.

The load control terminal 3 is substantially the same as the conventional one, and if it is put to say, the transmission processing is performed in consideration of the fact that the display signal DD is included in the transmission signal V _S. Is different from the conventional one.

Next, the operation of the remote control system configured as described above will be described with reference to FIG. The description of the same operation as that of the conventional remote control system is omitted.

When the transmission unit 1 sends a 1-frame transmission signal V _S to the switch terminal 2 at a certain address through the signal line L, first, a communication request for a character code addressed to the address is sent to the personal computer PC. It is checked at the serial port 1a whether or not it is composed of (step 100). The transmission unit 1 is a personal computer P
If there is no communication request from C, the mode data MD included in the transmission signal V _S is set to the mode data MD that gives an instruction that the display data DD is invalid, and the transmission signal V _S of one frame is transmitted through the signal line. Send to L (step 10)
1). The switch terminal 2 having the same address data AD indicates that the display data DD is invalid by the mode data M.
It recognizes from D, ignores only the display data DD, and performs the control operation and the reply operation as in the conventional case.

On the other hand, in step 100, a personal computer PC
If there is a communication request from the transmission signal V _S , the mode data MD included in the transmission signal V _S is set to the mode data MD that gives an instruction that the display data DD is valid, and the transmission signal V _S of one frame is transmitted through the signal line L. (Step 102). The signal processing unit 2 _c of the switch terminal 2 having the same address data AD receives the transmission signal V _S (step 10
3) The mode data M indicates that the display data DD is valid.
The character code, which is digital data recognized by D and demodulated from the display data DD, is stored in the address storage unit 2 _e.
Together with updates the stored storage, and outputs to the liquid crystal driver 2 _g (step 104). The liquid crystal driver 2 _g outputs an output signal converted into an electric signal for displaying a character or a symbol corresponding to the character code to the liquid crystal display unit 2 _b . Then, the liquid crystal display unit 2 _b has the liquid crystal driver 2
Characters and symbols corresponding to the output signal of _g are displayed (step 105).

That is, in the above remote control system, the following functions are added to the functions of the conventional remote control system. That is, in the above remote control system, the personal computer P connected to the transmission unit 1 is
When C is operated to input the address of the switch terminal 2 for changing the characters or symbols as the name plate and the character code representing the desired characters or symbols as the name plate to the transmission unit 1, the transmission unit 1 Is
The liquid crystal display unit 2 of the switch terminals 2 having a predetermined address among the switch terminals 2 which are distributed and installed far apart.
_A function to display the desired name plate characters or symbols is added to _b .

Therefore, in the above remote control system, the name plate of the switch has to be changed when the tenant name or the layout is changed in the tenant building or the like and the name plate of the switch is changed. You don't have to go to and change the name plate one by one, you can change it quickly and easily from one place, and you can use it as an electronic contact plate.

Further, the transmission unit 1 is provided with a correspondence table between the character code for liquid crystal display of each switch terminal 2 and the load control terminal 3 to which the load A to be controlled is connected, and the correspondence table is provided. Based on the relation table and in response to the operation data returned from the switch terminal 2, a character corresponding to the indicator light of the switch terminal of the conventional remote control system is displayed on the liquid crystal display unit 2 _b of the switch terminal 2. You can also display symbols.

[0036] For example, in Figure 1, the liquid crystal display unit 2 _b of the uppermost switch terminal unit 2, the symbol indicating that luminaire corresponding to the switch terminal unit 2 is in a lighting state is displayed There is. Further, on the liquid crystal display section 2 _b of the switch terminal 2 which is the fourth from the top, a character indicating that the room corresponding to the switch terminal 2 is being reserved is displayed.

The present invention is not limited to the above embodiment, and the liquid crystal display may be a plasma display. Further, the transmission form of the transmission signal is not limited to the time division multiplexing transmission signal as described above, and the transmission format is not limited to the format as described above. Further, it is not necessarily limited to the one in which the display unit is arranged on the surface of the control operation unit, and it is sufficient that the correspondence between the control operation unit and the display unit can be understood. Furthermore, the size of the display unit is not limited to the size of one module of the large-angle continuous switch box used in ordinary wiring equipment, and can be any size.

[0038]

According to the first aspect of the present invention, the contents displayed on the display units of the distributed switch terminals are not required to go to the site where the switch terminals are installed. It is possible to provide an excellent switching terminal device that can be easily modified from the transmission unit side if necessary and can construct a convenient remote control system.

According to the second aspect of the present invention, the contents displayed on the display units of the switch terminals that are distributed and installed are necessary even if they do not bother to go to the site where the switch terminals are installed. Accordingly, it is possible to provide a convenient remote control system that can be easily changed from the transmission unit side for each individual switch terminal.

According to the third aspect of the present invention, the transmission unit and the respective terminals are provided with address data for accessing the terminals, display data for giving display instructions to the terminals, and control instructions for the terminals. Since the data is transmitted and received through the two signal lines by the transmission signal including the control data for giving the data and the reply period for returning the reply data from the terminal device, the wiring for the display data is required separately. It does not require construction, and even if the display contents of the distributed switch terminals are not necessary to go to the site where the switch terminals are installed, a transmission unit It is possible to provide an easy-to-use remote control system in which a side can easily make a change instruction for each switch terminal.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing a remote control system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a switch terminal of the remote control system.

FIG. 3 is a flowchart illustrating an operation of the remote control system.

FIG. 4 is an explanatory diagram showing a transmission signal of the remote control system.

FIG. 5 is a system configuration diagram showing a conventional remote control system.

FIG. 6 is an explanatory diagram showing a transmission signal of the remote control system.

[Explanation of symbols]

1 transmission unit 2 switches terminal unit 2 _a control operation unit 2 _b display section 2 _d operation for the transmission unit 3 loads the control terminal unit DD display data L signal lines V _S transmission signal WT return period

Claims (3)

[Claims] 1. A transmission unit, a plurality of load control terminals connected to the transmission unit via two signal lines,
In a switch terminal used in a remote control system including a switch terminal, the switch terminal is provided with a display unit for displaying various characters based on display data in a transmission signal including a self-address transmitted from a transmission unit. vessel. 2. A remote control system comprising: a transmission unit; a plurality of switch terminals and a plurality of load control terminals connected to the transmission unit via two signal lines; The remote control system, wherein the terminal device includes a display unit that displays various characters based on display data in a transmission signal including a self address transmitted from the transmission unit. 3. A remote control system comprising: a transmission unit; a plurality of switch terminals and a plurality of load control terminals connected to the transmission unit via two signal lines; The transmission includes address data for accessing the terminal device, display data for giving a display instruction to the terminal device, control data for giving a control instruction to the terminal device, and a reply period for sending reply data from the terminal device. The switch terminal is provided with a transmission unit for transmitting a signal, and the switch terminal receives an operation data transmission unit for receiving at least display data in a transmission signal including its own address and returning reply data indicating its own state in a reply period. , A display unit that displays various characters based on the display data received by the operation transmission unit, and a control operation unit that changes the self-state, The cargo control terminal device includes a control transmission unit that receives at least control data in a transmission signal including a self-address, and a switch unit that operates based on the control data received by the control transmission unit. Remote control system characterized by.