JP2650950B2 - Remote control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention connects a central control unit and a plurality of terminals via signal lines, and transmits data by time division multiplex transmission to the terminals. The present invention relates to a remote control system for remotely controlling a connected load.

[Prior Art] As shown in FIG. 10, a remote control system of this type includes:
A plurality of operation terminals 2 and control terminals 3 each having a unique address are connected to the central controller 1 via a signal line 4 having a pair of lines. . The central control unit 1 sends out a transmission signal Vs to the line 4, and the transmission signal Vs is, as shown in FIG.
A mode signal MD indicating the mode of the signal, an address signal A for calling the individual terminals 2 and 3 by specifying the addresses of the terminals 2 and 3
D, the control signal CD for controlling the connected load L ₁ ~L ₄ to the terminal device 3 for controlling checksum signal CS for detecting a transmission error, return to set the return time from the terminal device 2 and 3 This is a multi-pole (± 24 V) time-division multiplex signal composed of the standby signal WT, and data is transmitted by pulse width modulation. In each of the terminals 2 and 3, when the address included in the transmission signal Vs received via the signal line 4 matches the address uniquely set in the terminals 2 and 3, the control of the transmission signal Vs is performed. In addition to reading the data, the monitor signal is returned as a current mode signal (a signal transmitted by short-circuiting the signal lines 4 through an appropriate low impedance) in synchronization with the return wait signal WT of the transmission signal Vs. ing.
In addition, the central control device 1 includes a dummy signal transmitting unit that constantly transmits a dummy transmission signal in which the mode signal MD is set to the dummy mode, and a dummy signal transmission unit that is returned from one of the operation terminals 2.
There is provided an interrupt processing means for detecting the terminal 2 which has generated an interrupt when an interrupt signal Vi as shown in FIG. 11 (b) is received. After detecting the terminal device 2, the interrupt processing means accesses the terminal device 2 and returns the monitoring data. A switch S ₁ is provided on the operation terminal 2.
To S ₄ are connected, and the interrupt means when there is an operation input by the switch S ₁ to S ₄ are operated in synchronism with the start signal ST of the dummy transmission signal to generate an interrupt signal Vi, the terminal device Central controller 1 in response to interrupt 2
Data returning means for returning predetermined data in response to an access made by the user. The interrupt means is
The address corresponding to the address of the terminal 2 in synchronization with the return standby signal WT of the transmission signal in the address confirmation mode from the central controller 1 (the terminal 2 having the same upper 4 bits of the address signal is accessed collectively). It also has a function to return the lower 4 bits of the signal. The central control unit 1 transmits control data to be transmitted to the control terminal 3 having a predetermined address based on the operation input state returned from the operation terminal 2 to the central control unit 1 as described above. The generated address signal and the control signal are transmitted to the terminal 3, and the terminal 3
Than it controls the connected load L ₁ ~L ₄ in. Moreover, the load L ₁ ~L ₄ is controlled, so that the the control state is returned in synchronism with the monitored return wait signal WT.

As shown in FIG. 12, the terminals 2 and 3 basically include a transmitting / receiving unit 12 for converting a transmission signal Vs on a signal line into a signal that can be processed by the signal processing unit 11, and an address including a dip switch for setting an address. It has a setting unit 13 '. Since the address setting unit 13 'is usually mounted on the back of the terminals 2, 3 or inside the terminals 2, 3, the switch of the terminal 2 is used.
When S ₁ to S ₄ is assumed to be a wall switch, it must be such to expose the DIP switch remove the decorative plate.

Since the setting operation of the address is troublesome in such a configuration, the present inventor has previously proposed that the address setting can be performed from outside the terminals 2 and 3 by a wireless signal.

[Problem to be Solved by the Invention] Terminal 2 for setting address by wireless signal
Has a wireless receiving unit 15 for receiving a wireless signal, as shown in FIG. 13, and an address is stored in an address storage unit 13 composed of an EEPROM.
In this case, it is necessary to use the directivity of the wireless signal or to limit the reach of the wireless signal so that the wireless signal is not received by an adjacent terminal. If it is large, the wireless signal can be transmitted only to the desired terminal. However, if the switch of the terminal device is a wall switch or the like, the distance between the terminal devices may be as short as about 2 cm,
It is difficult to specify a terminal to which a wireless signal is to be transmitted simply by controlling the directivity and the reach of the wireless signal, and the address of a terminal that is not a target may be set.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems, and an address can be set only when a switch exposed on the surface of a terminal case is operated, so that a target terminal can be set. It is intended to provide a remote control system in which only addresses are set.

[Means for Solving the Problems] In the present invention, in order to achieve the above object, each terminal device includes:
A writable address storage unit in which the address data is stored and held without power supply and the stored address data is used as an address unique to the terminal device, and a wireless signal including the address data written in the address storage unit is received. A wireless receiving unit and a switch for enabling writing of address data to the address storage unit only during operation are provided, and a setting device including an operating unit for creating and transmitting a wireless signal is provided separately from the terminal device. It is.

Further, the terminal may be provided with a plurality of switches for enabling writing of address data, and independent address data may be set in the address storage unit for each switch.

[Operation] According to the above configuration, the address data by the wireless signal is written into the address storage unit only when the switch is operated, so that it is possible to prevent the address data from being written to the non-target terminal. .

Further, if a plurality of switches are provided in the terminal device so that independent address data can be set for each switch, parts can be standardized, which leads to a reduction in cost for other types. .

First Embodiment In the following description, the operation terminal 2 is mainly described, but the same configuration can be applied to the control terminal 3.

As shown in FIG. 1, the operation terminal 2 has a signal line 4.
A signal processing unit 1 that receives a transmission signal Vs transmitted through the PX, performs signal processing, and forms and transmits a return signal.
1. The transmission signal V interposed between the signal processing unit 11 and the signal line 4
transmitting / receiving unit 1 for converting s to be processed by the signal processing unit 11
2, an address storage unit 13 for storing an address unique to the terminal 3, a switch SW such as a wall switch, and the like.

The signal processing unit 11 is configured using a microprocessor or the like. When the switch SW is operated, the signal processing unit 11 transmits the interrupt signal Vi described in the section of the related art to the central control device 1. Thereafter, a transmission signal is transmitted to and from the central control unit 1 using the address data stored in the address storage unit 13.
Vs is exchanged, and the operation state of the switch SW is transmitted to the central control device 1. The address storage unit 13 is configured using an EEPROM, is writable, and can hold data without power supply. Here, the terminal 2 described in FIG. 10 is provided with _four switches S _{1 to} S ₄ , but in this embodiment, the switch SW is set to 1 for each terminal 2.
Each is provided. The signal processing unit 11 has loads L _{1 to} L ₄
Are connected to display lamps LD ₁ and LD _{2 each} composed of a pair (green and red) of light emitting diodes for displaying the state of ( ₁ ). Here, the off state of the load is shown in green, and the on state of the load is shown in red.

Incidentally, the address data written in the address storage unit 13 is set based on the wireless signal received by the wireless reception unit 15. The wireless signal is generated by the operation unit 16 of the setting device 5 provided separately from the terminal device 3 and transmitted using infrared rays. The wireless signal contains address data. here,
A transmission medium such as an ultrasonic wave or a radio wave may be used between the wireless reception unit 15 and the operation unit 16 in addition to the infrared light. Operation unit 16
The address data set in (1) is received by the wireless receiving unit 15 as a wireless signal. At this time, if the switch SW is turned on, the address is written into the address storage unit 13.

As shown in FIG. 2, a switch SW composed of a push button switch and a wireless receiver 15 are mounted on the front side of a substrate 22 provided in a case 21 of the terminal device 2. The switch SW is opened and closed by pushing a handle 22 provided on the front side of the case 21. The handle 22 includes a main body 22a made of a material that can transmit infrared rays, and a cover 22b fitted on the front side of the main body 22a, and a nameplate 23 is provided between the main body 6a and the cover 22b. It is sandwiched. The cover 22b is formed of a transparent material such as acrylic so that the nameplate 23 can be seen. However, the infrared light transmitted from the setting device 5 is received by the wireless receiving unit 15 through the handle 22. When the transmission medium is radio waves or ultrasonic waves, there is no problem if a normal synthetic resin is used even if the main body 22a is not made of an infrared transmitting material.

As shown in FIG. 3, the setting device 5 includes a transmission start switch 6 composed of a push button switch and a wireless transmission unit 7 composed of a light emitting diode at a position facing the handle 22 of the terminal device 2. When the device 5 is pressed against the handle 22, the transmission start switch 6 is pressed and transmission of the wireless signal is started.

Next, the operation will be described. As shown in FIG. 4, when the power is turned on, each terminal 2 reads the address data written in the address storage unit 13 and operates as an address unique to each terminal 2. Here, when the system is used for the first time after installation of the system, it operates with the address data set in the address storage unit 13 in advance as a specified value at the time of shipment. Thus, the central controller 1 and the terminal 2
The transmission and reception of the transmission signal Vs is performed between the transmission and reception. If there is no wireless signal when the switch SW is operated, the interrupt signal Vi is transmitted to the central control device 1 as described above to control the loads L _{1 to} L ₄ provided in the control terminal 3. Perform On the other hand, if there is a wireless signal at the time of operating the switch SW, the wireless signal is received, and according to the mode of the wireless signal, if the setting mode, the data is written to the address storage unit 13 and then written by the display lamps LD ₁ and LD _2. Confirm the address data. In the confirmation mode, only the confirmation of the address data by the display lamps LD ₁ and LD ₂ is performed. How to display the address data by the display lamps LD ₁ and LD ₂ will be described later.

The wireless signal from the setting device 5 has, for example, a configuration as shown in FIG. 5 in order to perform the above-described operation. That is, the basic signal format of the wireless signal includes a head signal HD indicating the start of the wireless signal, a custom signal CM including address data, and a data signal DT including control data, and after the wireless signal is transmitted, An answer back including the custom signal CM and the data signal DT is returned. The custom signal CM and the data signal DT are 10 bits and 8 bits, respectively, as shown in FIG. 6, and have a configuration as shown in FIG. 7, for example. That is, the custom signal CM is composed of 8-bit address data AD ₀ , 1-bit page data PG ₀ , and 1-bit data length data LN ₀ (determining whether the length is fixed length or variable length). It consists of 2-bit load number data RN ₀ , 2-bit control data CN ₀ , and 4-bit mode data MD ₀ specifying a mode. Mode of the wireless signal is of being set by the mode data MD _0, when the setting mode is specified as FIG. 7 (a) has the meaning address data AD _0, and Beji data PG _0, address Data AD ₀ and load number data RN
A value obtained by concatenating ₀ is written to the address storage unit 13.
On the other hand, in the confirmation mode, as in the FIG. 7 (b), only the mode data MD ₀ is meaningful, when the mode data MD ₀ is transmitted, the address data is read from the address storage section 13, the answer It is returned as a back, and its format is the same as in the setting mode.

Confirmation of the address data by the display lamps LD ₁ and LD ₂
This is performed in the format shown in FIG. That is, the address data is represented by the blinking state of the display lamps LD ₁ and LD _2. First, one of the display lamps LD ₁ is turned off for 2 seconds to indicate a start. 0
And a light-off period of 0.5 seconds is provided between 1 and 0. Thus, after showing the upper 4 bits of the address data in the display lamp LD _1, placing the rest period of one second, it is Below the lower 4 bits of the display lamp LD ₂ flashes like the address data. Thereafter, the display returns to the normal display after a two-second pause.

The switch SW is intended for a wall switch, but may be a pull switch for a lighting fixture or the like.

[Example 2] In this embodiment, as shown in FIG. 9, a plurality of switches SW ₁ to SW ₄ to a signal processing unit 11, display lamp LD ₁₁ to Ld ₂₄ corresponding to the switches SW ₁ to SW ₄ And the number of switches can be set arbitrarily. Here, the address data of the address storage section 13 for each switch SW ₁ to SW ₄ are set independently. According to this configuration, parts can be shared for one, four, eight, etc., so that the cost can be reduced for many types. It should be noted that the input of the switch SW ₁ ~SW ₄ may be either the key scan input in static input, display lamp LD
_{11 to} LD ₂₄ may be static lighting or dynamic lighting.

[Effects of the Invention] As described above, according to the present invention, a writable address storage unit in which address data is stored and held in each terminal without power supply and the stored address data is used as an address unique to the terminal. And a wireless receiving unit for receiving a wireless signal including address data to be written to the address storage unit, and a switch for enabling writing of the address data to the address storage unit only at the time of operation, and generating and transmitting a wireless signal. Since the setting device having the operation unit is provided separately from the terminal device, the address data by the wireless signal is written in the address storage unit only when the switch is operated. There is an advantage that writing of address data to the memory is prevented.

Also, if the terminal device is provided with a plurality of switches for enabling writing of address data, and if independent address data is set in the address storage unit for each switch, standardization of parts can be performed, This leads to a reduction in cost for other types.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an operation terminal device used in Embodiment 1 of the present invention, FIG. 2 is a sectional view of a main part of the above, FIG. FIG. 8 to FIG. 8 are explanatory diagrams of the above operation, FIG. 9 is a block diagram showing an operation terminal used in Embodiment 2 of the present invention, FIG. 10 is a schematic configuration diagram of a remote control system according to the present invention, FIG. 11 is an operation explanatory diagram showing the format of the transmission signal of the above, FIG. 12 is a block diagram showing a conventional operation terminal, and FIG. 13 is a block diagram showing a conventional control terminal. DESCRIPTION OF SYMBOLS 1 ... Central control device, 2 ... Terminal for operation, 3 ... Terminal for control, 5 ... Setting device, 11 ... Signal processing unit, 13
…… Address storage, 15… Wireless receiver, SW, SW
_{11 to} SW ₂₄ ...... Switch.

Claims (2)

(57) [Claims] A plurality of terminals, each of which has a unique address, are connected to a central controller via a signal line, and transmitted between the central controller and each terminal by a transmission signal transmitted from the central controller. The data is time-division multiplexed, and the transmission signal includes an address signal for accessing each terminal, a control signal for controlling a load connected to the terminal, and a return standby signal for setting a period for returning data from the terminal. In each of the remote control systems, each terminal device has a writable address storage unit that can store and hold address data without power supply and the stored address data is used as an address unique to the terminal device. A wireless receiving unit for receiving a wireless signal including address data written to the address storage unit; A switch is provided to enable inclusive can, a remote control system characterized by setting provided with an operation unit that creates sends the wireless signal device comprises provided separately from the terminal device. 2. The terminal according to claim 1, wherein a plurality of switches for enabling writing of address data are provided in the terminal device, and independent address data is set in the address storage unit for each switch. Remote control system.