JPH0346893A - Terminal device for remote control - Google Patents

Abstract

PURPOSE:To eliminate need for a heat radiation plate and to simplify a constitution by forming a terminal equipment case of a body and a cover to the standard size of a wiring instrument, clamping a metallic plate where fitting frame parts for embedding are arranged at both end parts between the body and cover, and fitting the heat radiation fin of a power control element to the center part of the metallic sheet. CONSTITUTION:The terminal equipment case 20 consists of the box-shaped body 20a which is open to the front and the cover 20b to the standard size (twin module size) of the wiring instrument, the metallic sheet 22 where the fitting frame parts 21 for embedding are formed at both end parts is clamped between the body 20a and cover 20b, and the heat radiation fin of the power control element Q is fitted to the center part of the metallic sheet 22. Engagement grooves 25a that engagement claws 25 of the cover engage and screw holes 26a of fitting screws for fitting the body 20a are formed in the metallic sheet 22, and fitting holes 21a for fitting to a wiring box (embedded type three- way switch box) are bored in the fitting frame part 21.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control terminal device that performs load control by receiving time-division multiplexed transmission signals from a central control device.

[Prior Art] FIG. 7 shows a schematic configuration of a remote monitoring and control system using a remote control terminal according to the present invention.
t1, a plurality of monitoring terminals 2 with unique addresses set and monitoring the switches S, ~S, a control terminal 3 that loads and controls ~L4, a wireless relay terminal 7, and an external interface terminal. 8 and a pattern setting terminal 9 are connected by a pair of signal lines 4, and the transmission signal Vs sent from the central controller 1 to the signal line 4 is as shown in FIG. 8(a). a start pulse signal ST indicating the start of signal exit; a mode data signal MD indicating the signal mode;
Address data signal AD, load, ~L that transmits 8-bit address data to call terminal device 2.3.7~9
, a control data signal CD that transmits control data for controlling the
, checksum data signal C8 and terminal 2.3.7
This is a bipolar (±24■) time division multiplexed signal consisting of a return standby signal WT that sets a return period from 9 to 9, and data is transmitted by pulse width modulation. When the address data of the transmission signal VS received via the signal Ii4 and its own unique address data match, each terminal device 2.3.7 to 9 takes in the control data of the transmission signal VS, and Vs return standby signal W
The monitoring data signal is sent back as a current mode signal (a signal sent by short-circuiting the signal lines 4 via an appropriate low impedance) in synchronization with T. Further, the central control device 1 includes a dummy signal transmitting means for constantly transmitting a dummy transmission signal with the mode data signal MD in a dummy mode, and either a monitoring terminal 2 or a wireless relay terminal 7 or an external interface terminal. 8. When the interrupt signal Vi as shown in FIG. 8(b) returned from the pattern setting terminal 9 is received, the interrupt generating terminal 2, 7 to 9 is detected and the terminal 2.7 Interrupt processing means is provided for accessing .about.9 and returning monitoring data.

The central control device 1 also uses the monitoring data sent back to the central control device 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. and create control data to be transmitted to the control terminal 3 that controls the corresponding loads LI to L4, and transmit the # control data to the signal line 1.
1 to control terminal 3 through time-division multiplex transmission to control .about.L4.

The wireless relay terminal 7 is a terminal that relays data in an optical wireless system consisting of an optical wireless transmitter Y, an optical wireless receiver X, and a wireless signal M4a, and transmits the optical signal transmitted from the optical wireless transmitter Y. The optical wireless receiver X receives the received data via the wireless signal 114a, and also transfers this data to the central control device 1.

The external interface terminal 8 is a terminal that performs data transmission with the external control device 8a, and the pattern setting terminal 9 sends pattern control data input from the data input section 9a to the central control device π1. This is the terminal device for the transfer. The monitoring terminal 2 and the control terminal 3 installed in the distribution board 6 or relay control panel 6a have the dimensions agreed upon in the distribution board, and their control output enables the remote control relay for load control. (A latching relay that can be turned on and off using a hand switch) 5 is controlled.

By the way, conventionally, the control terminal device 3 is built into an electrical device (for example, a lighting fixture) that is a load, but is arranged inside the distribution panel 6.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional example, the terminal case was formed to be used to embed equipment or to be installed in a distribution board, so there was a problem that it could not be embedded in a wall. there were. Also,
When a lighting load is dimmed and controlled using a power control element, a heat sink is required for the power control element, which increases the number of parts, making assembly difficult and increasing costs. .

The present invention has been made in view of the above points, and its purpose is to provide a device that can be easily embedded in a wall surface, has a simple structure, is easy to assemble, and is inexpensive. The objective is to provide a remote control terminal that can be used.

[Means for Solving the Problems] The remote control terminal of the present invention receives transmission signals including data such as artless data and control data sent from a central control device via a pair of signal lines. A signal processing circuit that processes signals, an address setting section that sets a unique address, and a power control element that controls dimming of a lighting load are housed in a terminal case, and the received address data is compared with the unique address. In a remote control terminal that controls a power control element by importing control data of a transmission signal when an address matches, a terminal case consisting of a body and a cover is formed to the standardized dimensions of a wiring device and embedded. A metal plate with mounting frame parts formed at both ends thereof is held between the body and the power bar, and a heat radiation fin of the power control element is attached to the center of the metal plate.

[Function] The present invention is configured as described above, and is provided in a remote control terminal that receives time-division multiplexed transmission signals from a central control device and controls the dimming of a lighting load. A terminal case consisting of a terminal case and a cover is formed to the standardized dimensions of a wiring device, and a metal plate having mounting frames for embedded installation formed at both ends is sandwiched between the body and the cover, and the metal plate is held between the body and the cover. The heat dissipation fin of the power control element is attached to the center of the power control element, and it can be easily embedded in the wall surface.Moreover, the metal plate with the mounting frame is used as the heat dissipation plate of the power control element. Since a heat sink is not required, the structure is simple, assembly is easy, and costs can be reduced.

[Embodiment] FIG. 5 shows an embodiment of the control terminal 3 for dimming control of the lighting load, which includes a signal processing circuit 10 made of a microcomputer and an address setting section 11 formed of an EEPROM. , photodiode PD and transistor Q1. an optical signal receiving section 12 consisting of a light emitting diode LD and a transistor Q4, a power supply circuit 14 consisting of a Zener diode ZD and a transistor Q2, and a return circuit consisting of a resistor R and a transistor Q. 15 and reset circuit 16
and a drive circuit 17 that drives the power control element Q. In particular, the transmission signal Vs transmitted via the signal line 4 is rectified by the diode bridge DB, and is input to the signal input terminal of the signal processing circuit IO via the transistor Q1. Circuit power for the terminal circuit is supplied via a power supply circuit 14 that makes the rectified voltage of the transmission signal Vs constant. Also,
The signal processing circuit 10 determines whether the unique address data set in the address setting unit 11 matches the address data of the received transmission signal Vs, and captures the dimming control data that is subsequently transmitted when the addresses match. The power control element Q is phase-controlled via the drive circuit 17, and the lighting load L1 is dimmed. In addition, monitoring data indicating the dimming state of the lighting load is sent by a current mode signal from the return circuit 15 (a resistor R with a low resistance value is inserted between the signal lines 4).
It is returned to the central control unit 1 with a return number 6.

On the other hand, writing of data to the EEPROM constituting the address setting section 11 is performed by the signal processing circuit 10, and the data to be written is processed by signal processing of the signal received by the optical signal receiving section 12. formed, the sixth
Predetermined 32-bit data as shown in the figure is written. Here, the signal received by the optical signal receiving section 12 is as follows:
This is an optical wireless signal transmitted from a data setting device (not shown), and a response signal such as a reception confirmation signal is transmitted from the optical signal transmitting unit 13 as an optical wireless signal, and a communication between the monitoring terminal 2 and the data setting device is transmitted. Data can now be reliably transmitted wirelessly between

1 and 2 show the structure and arrangement state of an embodiment of the present invention, in which the terminal case 20 is formed to the standardized dimensions (dual module dimensions) of a wiring device, and A metal plate 22, which is composed of a box-shaped body 20a with an opening and a cover 20b, and has a mounting frame 21 formed at both ends for embedded installation, is sandwiched between the body 20a and the cover 20b. A heat dissipation fin of the power control element Q is attached to the central part of the power control element Q. Note that the metal plate 22 is formed with an engagement groove 25a in which the engagement claw 25 of the cover 22b is engaged, and a threaded hole 26a for a mounting screw 26 for attaching the body 20a. Wiring box (
A mounting hole 21a for mounting on a recessed triple switch box 27 is provided.

Further, a signal processing circuit 10 consisting of a microcomputer
, an address setting section 11 consisting of an EEPROM, a photodiode PD and a light emitting diode LD for transmitting and receiving optical wireless signals, and a light emitting diode LD for confirming reception.
c is mounted on one printed circuit board 30, and this printed circuit board 30 is housed in the terminal case 20, and on the front surface of the terminal case 20, that is, the cover 20b,
Openings 31a correspond to the light emitting diode LD, photodiode PD, and confirmation light emitting diode LDc.

31b and 31c are provided. Further, on the back side of the terminal case 20, a signal line connection terminal 32, a power line connection terminal 33a, a feed line connection terminal 33b, and a load line connection terminal 33c mounted on the back side of the printed circuit board 30 are opened. is exposed through.

The operation of the embodiment will be described below. Now, the terminal case 20 of the control terminal 3 has standardized dimensions (
Since the terminal case 20 has a mounting frame 21 protruding from the terminal case 20, when installing it embedded in a wall, a wiring box (switch box) 27 for three modules is installed. This can be easily done using . Furthermore, since the heat dissipation fin of the power control element Q is attached to the center of the metal plate 22, the mounting frame 21 and the heat dissipation plate of the power control element Q are integrated, simplifying the configuration and making assembly easier. This can be done easily and costs can be reduced.

On the other hand, the address setting section 11 is formed of an EEPROM, and the data (32 bits) written to this EEPROM consists of 4-bit page data and 4-bit upper address data, as shown in FIG. , 4-bit lower address data, 4-bit load number data, 8
Bit identification data, 4 bit reply data A and 4
This is bit reply data B, which can be written and read as needed by the signal processing circuit 10.

In other words, when constructing the system or changing the load or switch layout, changing the unique address,
When the terminal type, control method, monitoring method, etc. are changed, when predetermined data is set using the data setting device and an optical wireless signal is transmitted, this optical wireless signal is received by the optical signal receiving section 12. The data signal-processed by the signal processing circuit 10 is sent to E of the address setting section 11.
Written to EPROM. In this case, the EEPROM retains data even in the event of a power outage, eliminating the need for a backup power source and allowing data to be electrically rewritten, making it easy to set and change unique addresses.

3 and 4 show another remote control terminal, in which a fitting protrusion 27 is provided on the side surface of the terminal case 20, and this fitting protrusion 28 is fitted into the mounting frame 21°. Joint part 2
8a to form a remote control terminal with a mounting frame, and since it uses the commonly used mounting frame 21, parts can be shared and costs can be reduced. can do. The mounting frame 21' is provided with a wiring box mounting hole 21a, a mounting hole 21b for direct wall mounting, an L-shaped scissor fitting mounting hole 21c, and a decorative cover mounting screw hole 21d. It is compatible with various embedded installations.

Further, 34 is a heat sink to which the heat sink fins of the power control element Q are attached. Note that the body 20a and the cover 20b are assembled by engaging the engaging claw 29 with the engaging portion 29a.

[Effects of the Invention] The present invention is configured as described above, and provides a remote control terminal that receives time-division multiplexed transmission signals from a central control device and controls the dimming of a lighting load. A terminal case consisting of a body and a cover is formed to the standardized dimensions of a wiring device.

A metal plate with a mounting frame for embedded installation formed at both ends is sandwiched between the body and the cover, and a heat dissipation fin for the power control element is attached to the center of the metal plate, making it easy to attach to the wall. Moreover, since a metal plate with a mounting frame is used as a heat sink for the power control element, a heat sink is not required, making the configuration simple and easy to assemble, reducing costs. It has the effect of being able to

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of one embodiment of the present invention, Fig. 2 is a perspective view showing the arrangement state, Figs. 3 and 4 are exploded perspective views of other remote control terminals, and Fig. 5 is an exploded perspective view of an embodiment of the present invention. FIG. 6 is an explanatory diagram of the same operation, FIG. 7 is a schematic configuration diagram of the remote monitoring and control system according to the present invention, and FIG. 8 is an explanatory diagram of the operation of the same. 1 is a central control unit, 2.3 is a terminal device, 4 is a signal line, 10
1 is a signal processing circuit, and 11 is an address setting section.

Claims (1)

[Claims] (1) A signal processing circuit that receives transmission signals including data such as address data and control data sent from a central control unit via a pair of signal lines and processes the signals; and an address setting section that sets a unique address. , a power control element that controls dimming of the lighting load is housed in a terminal case, the received address data is compared with a unique address, and when the addresses match, the control data of the transmission signal is taken in to control the power control element. In such a remote control terminal, a terminal case consisting of a body and a cover is formed to the standardized dimensions of a wiring device, and a metal plate is formed at both ends with mounting frames for embedded installation. A remote control terminal, which is sandwiched between a body and a cover, and has a heat dissipation fin of a power control element attached to the center of the metal plate.