JP2742448B2 - Terminal for remote control - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control terminal that performs load control by receiving a time division multiplexed transmission signal from a central controller.

[Prior Art] Fig. 5 shows a schematic structure of the remote monitoring control system using the remote control terminal unit according to the present invention, the central controller 1, the switch S ₁ to S ₄ unique address is set , A control terminal 3 for controlling the loads L _{1 to} L ₄ , a wireless relay terminal 7, an external interface terminal 8, and a pattern setting terminal 9. The transmission signal Vs, which is connected by the line 4 and transmitted from the central controller 1 to the signal line 4, includes a start pulse signal ST indicating the start of signal transmission, as shown in FIG.
Mode data signal MD indicating signal mode, terminals 2, 3, 7 ~
8 calls the 9, the address data signal AD for transmitting address data bits, control data signal CD for transmitting the control data for controlling the load L ₁ ~L _4, check sum data signal
This is a multi-pole (± 24V) time-division multiplexed signal composed of a CS and a return wait signal WT for setting a return period from the terminals 2, 3, 7 to 9, and data is transmitted by pulse width modulation. ing. Each of the terminals 2, 3, 7 to 9 takes in control data of the transmission signal Vs when the address data of the transmission signal Vs received via the signal line 4 matches its own unique address data, and transmits the data. The monitor data signal is returned as a current mode signal (a signal transmitted by short-circuiting between the signal lines 4 via a suitable low impedance) in synchronization with the return standby signal WT of the signal Vs. Also,
The central control unit 1 includes a dummy signal transmitting unit that constantly transmits a dummy transmission signal in which the mode data signal MD is set to the dummy mode, and any one of the monitoring terminal 2 or the wireless relay terminal 7, the external interface terminal 8, When an interrupt signal Vi as shown in FIG. 6 (b) returned from the pattern setting terminal 9 is received, the interrupt generating terminals 2, 7 to 9 are detected and the terminals 2, 7 to 9 are detected. And an interrupt processing means for accessing the data and returning the monitoring data. The central control unit 1 also uses the monitoring data returned to the central control unit 1 from the monitoring terminal 2 or the wireless relay terminal 7, the external interface terminal 8, and the pattern setting terminal 9 as described above. In addition to creating control data to be transmitted to the control terminal 3 for controlling the corresponding loads L _{1 to} L ₄ , the control data is transmitted to the signal line 4.
Multiplex transmission to the control terminal 3 via the
And controls the L ₁ ~L _4.

The wireless relay terminal 7 includes an optical wireless transmitter Y,
A terminal for relaying data of an optical wireless system composed of an optical wireless receiver X and a wireless signal line 4a. The optical signal transmitted from the optical wireless transmitter Y is received by the optical wireless receiver X and received. The received data is received via the wireless signal line 4a, and the data is transferred to the central controller 1. The external interface terminal 8 is connected to an external control device 8a.
The pattern setting terminal 9 is a terminal that transfers pattern control data input from the data input unit 9a to the central control device 1. A remote control relay for load control (a latching relay that can be turned on and off by a hand switch) 5 is controlled by the control output of the control terminal 3 disposed in the distribution board 6 or the relay control panel 6a. It is supposed to be.

[Problems to be Solved by the Invention] However, in the above-described conventional example, since the control terminal device 3 is of a distribution board mounting type or a device built-in type, it cannot be easily arranged on the ceiling surface. There is a problem, and the address setting unit for setting the unique address of the control terminal is formed by a dip switch, which complicates the configuration and, when installed on the ceiling surface, the unique address There is a problem that the setting operation is troublesome and maintenance is difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to be easily arranged on a ceiling, to be easily maintained, to have a simple configuration, and to have a unique address. It is an object of the present invention to provide a remote control terminal device that can easily perform a setting operation.

[Means for Solving the Problems] A remote control terminal of the present invention receives a transmission signal including data such as address data and control data transmitted from a central control device via a pair of signal lines, and transmits the signal. A signal processing circuit for processing, an address setting unit for setting a unique address, and a load control unit for controlling a load based on the control data. In a remote control terminal having a signal processing circuit formed so as to control a load by taking in control data of a transmission signal, a head in which a terminal circuit is housed in a base portion attached to a ceiling surface and provided with wiring terminals. Section is detachably attached, the address setting section is formed in a memory, and the unique address data written in the address setting section is transmitted by an optical wireless signal. It is provided with an address setting means that can be set freely.

According to a second aspect of the present invention, in the first aspect, the memory is constituted by an EEPROM.

[Operation] The present invention is configured as described above, and is a remote control terminal that performs load control by receiving a time-division multiplexed transmission signal from a central control device. Since the head section housing the terminal device circuit is detachably attached to the base section provided with the terminals, the head section can be easily arranged on the ceiling and maintenance can be easily performed. In addition, since the address setting unit is formed in the memory and the address setting means for setting the unique address data written in the address setting unit by the optical wireless signal is provided, the DIP switch for setting the address becomes unnecessary. The configuration is simplified, and the setting operation of the unique address can be easily performed.

EXAMPLES intended Figure 3 is showing an embodiment of the control terminal unit 3 of the power supplied to the load L ₁ phase control as the luminaire, at a signal processing circuit 10 composed of a microcomputer EEPROM The address setting unit 11 to be formed and the photodiode PD
And an optical signal receiving unit 12 including transistors Q ₅ and Q ₆ ,
An optical signal transmitting unit 13 composed of a light emitting diode LD and the transistor Q _4, the Zener diode ZD and the transistor
A power supply circuit 14 of Q _2, resistors R and the transistor Q ₃
Return circuit 15, reset circuit 16, and bidirectional 3
Power control elements such as terminal thyristors (triacs)
It is formed with a drive circuit 17 for controlling the Q _0. Here, the transmission signal Vs transmitted via the signal line 4 is rectified by the diode bridge DB, which is input to the signal input terminal of the signal processing circuit 10 via the transistor Q _1, comprises a signal processing circuit 10 The circuit power of each terminal circuit is the transmission signal Vs
Is supplied via a power supply circuit 14 for making the rectified voltage of the rectified voltage constant. In the signal processing circuit 10, the address setting unit 11
Is determined to match the unique address data set to the address data of the received transmission signal Vs, and the control data subsequently transmitted when the address matches (in the embodiment, the control data for dimming) is fetched. controls power control element Q ₀ through the drive circuit 17 so as to load L ₁ phase control (dimming control), such as a lighting fixture. Also be sent to the return signal V _B is the signal line 4 to be returned to the central control unit 1 as a current mode signal monitoring data return circuit 15 dimming operation (inserting a resistor R of low resistance value between the signal line 4) It has become so.

On the other hand, writing of data to the EEPROM constituting the address setting unit 11 is performed by the signal processing circuit 10, and the data to be written is obtained by performing signal processing on a signal received by the optical signal receiving unit 12. Then, predetermined 32-bit data as shown in FIG. 4 is written. here,
The signal received by the optical signal receiving unit 12 is an optical wireless signal transmitted from a data setting device (not shown),
A response signal such as a reception acknowledgment signal is transmitted as an optical wireless signal from the optical signal transmission unit 13, so that data can be reliably transmitted wirelessly between the monitoring terminal 2 and the data setting device.

FIGS. 1 and 2 show the structure of one embodiment of the present invention, in which a head portion 22 containing a terminal circuit is detachably attached to a base portion 21 attached to a ceiling surface 20. FIG. Things. Here, in the embodiment, the blade receiving portion is provided on the base portion 21.
6 having 23a, electric wire connection portion 23b, and caulking fixing claw 23c
A plurality of wiring terminals 23 are provided, and a signal line 4 and a power supply line 2 led out through an electric wire insertion hole 20a formed in the ceiling surface 20.
4a and the load wire 24b are connected to the electric wire connection portion 23b of the wiring terminal 23. On the other hand, a head case that houses the terminal device circuit
25 is composed of a case body 25a and a cover 25b,
26 is fitted in the mounting groove 27 and can be assembled. The terminal device circuit is mounted on the printed circuit board 30 and housed in the head case 25, and the heat radiating plate 31 to which the power control element Q is attached also serves as a spacer. Furthermore, six blades 32 are protruded from the upper surface of the head portion 22.
When the blade 32 is connected to the blade receiving portion 23a of the wiring terminal 23 via the blade insertion hole 32a, electrical connection between the base 21 and the head 22 is established. The head 22
To attach the head part 22 to the base part 21, the mounting claw 28 projecting from the head part 22 may be engaged with the mounting groove 29 formed in the base part 21, and the head part 22 can be attached and detached to the base part 21 with one touch. I can do it.

The case body 25a of the head case 25 is provided with a light emitting diode LD, a transmitting / receiving opening 35a and 35b corresponding to the photo diode PD, and an opening 35c corresponding to the light emitting diode LDc for confirming the reception of the optical wireless signal. ing. In the figure, 36 is a wood screw for attaching the base portion 21 to the ceiling surface 20, 37
Is a fixing screw for assembling the base body 21a and the cover 21b, 38 is a mounting screw for mounting the printed circuit board 30 to the radiator plate 31, and 39 is a mounting screw for mounting the power control element Q to the radiator plate 31.

Hereinafter, the operation of the embodiment will be described. Now, the control terminal 3 is attached to the ceiling surface 20 and the signal line 4 and the power supply line 24a.
And the base part 21 to which the load line 24b is wired, and the head part 22 which is detachably attached to the base part 21 and houses the terminal equipment circuit, so that when the terminal equipment circuit breaks down, The head unit 22 can be easily repaired by detaching the head unit 22 from the base unit 21, and maintenance is easy.

On the other hand, the address setting unit 11 is formed of an EEPROM, and data (32 bits) written to the EEPROM is
As shown in FIG. 4, 4-bit page data, 4-bit upper address data, 4-bit lower address data, 4-bit load number data, 8-bit identification data, 4-bit reply data A, and 4-bit , Which can be written and read as needed by the signal processing circuit 10. That is, when the system is installed or when the load or the switch layout is changed, the unique address is changed, the terminal type is changed,
When a control method or a monitoring method is changed, when a predetermined data is set by the data setting device and an optical wireless signal is transmitted, the optical wireless signal is transmitted to the optical signal receiving unit 12.
Is received and signal-processed by the signal processing circuit 10 is written to the EEPROM of the address setting unit 11. In this case, a dip switch is not required as compared with the conventional example, so that the structure is simplified and the cost can be reduced. In addition, since the EEPROM stores data even in the event of a power failure, a backup power supply is not required. Further, since the data can be electrically rewritten and the unique address can be set by the optical wireless signal, the address setting operation is easy even when the control terminal 3 is disposed on the ceiling surface 20. Can be done.

[Effects of the Invention] The present invention is configured as described above, and is a remote control terminal that performs load control by receiving a time-division multiplexed transmission signal from a central control device, the terminal being attached to a ceiling surface. Since the head unit housing the terminal device circuit is detachably attached to the base unit provided with the wiring terminals, the head unit can be easily arranged on the ceiling and the maintenance can be easily performed. In addition, since the address setting unit is formed in the memory and the address setting means for setting the unique address data written in the address setting unit by the optical wireless signal is provided, the DIP switch for setting the address becomes unnecessary. There is an effect that the configuration is simplified and the setting operation of the unique address can be easily performed.

[Brief description of the drawings]

1 (a) is an exploded perspective view of one embodiment of the present invention, FIG. 1 (b) is an enlarged perspective view of an essential part of the embodiment, FIG. 2 is an exploded perspective view of an essential part of the embodiment, and FIG. FIG. 4 is a circuit diagram, FIG. 4 is an explanatory diagram of the operation of the above, FIG. 5 is a schematic configuration diagram of a remote monitoring control system according to the present invention, and FIG. 1 is a central control device, 2 and 3 are terminals, 4 is a signal line, 10 is a signal processing circuit, 11 is an address setting unit, 20 is a ceiling surface, 21 is a base unit, and 22 is a head unit.

Claims (2)

(57) [Claims] 1. A signal processing circuit for receiving a transmission signal including data such as address data and control data transmitted from a central control unit via a pair of signal lines and processing the signal, and an address setting for setting a unique address. And a load control unit configured to control the load based on the control data, to compare the received address data with the unique address and to take in the control data of the transmission signal when the address matches to control the load. In the terminal for remote control in which a signal processing circuit is formed, a head portion housing the terminal device circuit is detachably mounted on a base portion attached to a ceiling surface and provided with wiring terminals, and the address setting portion is provided. Address setting means is provided which enables the unique address data formed in the memory and written in the address setting section to be freely set by an optical wireless signal. Remote control terminal unit to Toku傲. 2. The remote control terminal according to claim 1, wherein said memory comprises an EEPROM.