JPH04253127A - Card insertion type switch for remote control system - Google Patents

Abstract

PURPOSE:To facilitate wiring work by reducing the number of wires, and connecting the wires with terminals. CONSTITUTION:A switch main body 2 turned on or off when a card is inserted or removed is provided on a case main body 1. The on/off state of the switch main body 2 is transmitted to the outside by a time division multiplex transmission system via a terminal processing section. Terminals T1 for connecting the terminal processing section to a transmission line are exposedly provided on the back face of the case main body 1.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a card insertion type switch for a remote control system that is turned on and off in response to insertion and removal of a card into a card insertion slot opened in a case body. .

0002

[Prior Art] In recent years, card keys have been used in facilities such as hotels, in which a magnetic recording section is provided on a hard card such as a synthetic resin card, and the room number, etc., is verified based on the contents stored in the magnetic recording section. ing. In hotels that use such card keys, card-insertion type switches are placed in the room for the purpose of preventing people from forgetting to turn off the lights in the room, and the card keys are placed in the card-insertion type switch. The system uses a system that supplies electricity to the room only while it is inserted. In addition to card keys, tags attached to room keys can also be used as cards.

0003

[Problems to be Solved by the Invention] By the way, conventional card insertion type switches were normally used in conjunction with an electromagnetic contactor to control large-capacity loads, so it was difficult to connect the lead from the case body to the electromagnetic contactor. The lines were directly drawn out. As a result, there have been problems in that there are many restrictions on wiring construction and construction is troublesome.

[0004] The present invention aims to solve the above-mentioned problems, and by providing terminals on the case body, restrictions on wiring construction are reduced, and moreover, it can be mounted on the construction surface using the same method as wiring devices. It is an object of the present invention to provide a card insertion type switch for a remote control system that can be easily adopted and installed.

[0005]

[Means for Solving the Problems] In order to achieve the above object, in claim 1, a plurality of terminal devices, each having an address set individually, are connected to a main control device via a transmission line consisting of a pair of lines. Connect and set the period for receiving address data for specifying each terminal from the main control device, transmission data to each terminal, and return data from the terminal to the main control device. The transmission signal including the signal return period is time-division multiplexed, and the load connected to the other terminal device is set according to the monitoring input inputted to one terminal device in a pair, and the correspondence relationship by address is set. A card insertion type switch used in a remote control system that controls It is equipped with a terminal processing section that creates reply data as a monitoring input, an address setting section that sets an address, and a display element that lights up when no card is inserted into the slot, and connects the transmission line and the terminal processing section. A terminal for a signal to be transmitted and a terminal for a power supply to supply power to the display element are arranged on the back side of the case body, and the terminal processing section receives a transmission signal containing address data that matches the address set by the address setting section. When received from the transmission line, the on/off status of the switch itself is sent back to the main controller as reply data.

[0006] In claim 2, the case body includes a base that is attached to a wall surface or the like, and a cover that engages with the front surface of the base, and the base includes a box that is screwed into an embedded box for a wiring device. A clip that holds the periphery of the mounting hole formed in the wall panel between the through hole into which the screw is inserted and the base, and can change the distance from the base by screwing into the tightening screw passing through the through hole. It is equipped with a hook hole into which a part of the metal fitting is hooked.

[0007]

[Operation] According to the structure of claim 1, since the on/off state of the switch body is transmitted by the time division multiplex transmission method, the number of wire connections is reduced compared to the case where the switch body and the load are directly connected. In addition, the signal terminal that connects the transmission line and the terminal processing section, and the power supply terminal that supplies power to the display element are arranged on the back of the case body, so the conventional structure in which lead wires are drawn out is provided. Compared to this, there are fewer restrictions on wiring construction. Additionally, since it is equipped with a display element that lights up when the card is not inserted into the slot, the card's location is displayed and it can be easily found even in places where the lighting equipment is not lit.

[0008] According to a second aspect of the present invention, the base, which constitutes a part of the case body and is attached to a wall surface, etc., has a through hole through which a box screw screwed into the embedded box for the wiring device is inserted, and a wall panel. A hook hole is provided in which a part of the clamping fitting that can be screwed into the tightening screw passing through the through-hole and return the distance from the base is hooked. Therefore, by using a built-in box for wiring devices or using clamps for wiring devices, it is possible to use the same construction method as for wiring devices, making installation easier. .

[0009]

[Embodiment] As shown in FIGS. 1 to 5, the case body 1
is constructed by combining a base 10 and a cover 20. The base 10 has a box-shaped body portion 11 with an open front, and a mounting flange 12 is formed around the entire circumference of the opening edge, and a spacer rib 13 is provided on the inner peripheral surface of the peripheral wall of the body portion 11. It is installed protrudingly. A circuit board 30 made of a printed circuit board is in contact with the front end surface of the spacer rib 13, and the body portion 1
1 and the circuit board 30 are spaced apart from each other. On this circuit board 30, components constituting a circuit section to be described later are mounted, such as a switch main body 2 made of a microswitch, a plurality of light emitting diodes 31 as display elements, and a dip switch 32 for setting an address. A plurality of terminal plates 34 having terminal screws 33 screwed together are disposed on the rear surface of the body portion 11 . Each terminal board 34 is fixed to the base 10 by being caulked to the rear wall of the body portion 11, and is connected to the circuit board 30 via a lead wire 35. Further, an opening window 14 is formed on the rear wall of the body portion 11 at a portion corresponding to the dip switch 32, so that the dip switch 32 can be operated from the back side of the base 10.

The mounting flange 12 has a pair of elongated through holes 15 and a pair of hook holes 16 provided on both sides of each through hole 15. That is,
When an embedded box such as a switch box used for installing an embedded wiring device is embedded in the wall surface, the base 10 can be attached to the wall surface by screwing the box screw into the embedded box through the through hole 15. It is possible. In addition, when attaching the base 10 to a wall panel such as a plasterboard, a part of a clip that can hold the circumferential part of the mounting hole drilled in the wall panel between the base 10 and the hook hole 16 can be hooked. At the same time, a tightening screw is screwed into the clamping fitting through the through hole 15, and the tightening screw is tightened so that the distance between the base 10 and the clamping fitting is reduced.

Engagement hooks 17 are protruded at four locations around the front surface of the mounting flange 12, and when the tips of the engagement hooks 17 engage with the inner circumferential surface of the circumferential wall of the cover 20,
The base 10 and cover 20 are coupled together. Furthermore, four fixing bases 19 each having a fixing recess 18 are protruded from the front surface of the mounting flange 12 . An inner cover 40 is disposed on the front surface of the base 10, and the circuit board 30 is held between the spacer ribs 13 and the inner cover 40. A fixing protrusion 41 is provided protruding from the periphery of the inner cover 40 , and when the fixing protrusion 41 engages with the fixing recess 18 , the inner cover 40 is fixed to the base 10 . The inner cover 40 is arranged so as not to cover the through hole 15 formed in the base 10. The inner cover 40 is formed with a cutout groove 42 through which the operating lever 2a of the switch body 2 passes.
A pair of holding frames 43 for holding both sides of the card 3 are formed on both sides of the card 2. The holding frame 43 protrudes from the front side of the inner cover 40 and is provided with a guide groove 44 that slidably guides the side of the card 3. In addition, the inner cover 4
A pair of guide ribs 45 are protruded from both sides of the front surface of the switch 0 to hold the card 3 between them and the inner peripheral surface of the guide groove 44 so that a part of the card 3 comes into contact with the switch body 2. There is. An illumination recess 46 is formed between both guide ribs 45, and a light emitting diode 31 is inserted into the rear wall of the illumination recess 46. Further, the peripheral wall of the illumination recess 46 forms a reflective surface 47 that is inclined so that the cross-sectional area of the illumination recess 46 decreases from the opening surface toward the rear wall.

The cover 20 has a protrusion 2 for card insertion on the front side.
1 is provided protrudingly, and the card insertion protrusion 21 has a slot 22 on the top surface in FIG. 5 into which the card 3 can be inserted.
opens. Further, on the front surface of the card insertion protrusion 21, a lamp cover 23 made of a translucent material is attached to a portion of the inner cover 40 that corresponds to the illumination recess 46. That is, when the card 3 is not inserted into the slot 22, the light from the light emitting diode 31 passes through the lamp cover 23, so that the position can be displayed. Further, when the card 3 is inserted into the slot 22, the light emitting diode 31 is turned off.

According to the above structure, when the card 3 is inserted into the slot 22, the card 3 is guided by the guide ribs 45 and the guide grooves 44 and held by the holding frame 43. At this time, the operation lever 2a of the switch body 2 is controlled by the card 3.
is pressed, and the on/off state of the switch body 2 is reversed. By the way, the card insertion type switch A configured as described above is used in a remote control system configured as shown in FIG. That is, in this remote control system, a plurality of wall switches 52, control terminals 53, and card insertion type switches A, each having an address set individually, are connected to the main controller 51 via a transmission line 5 consisting of a pair of lines. connected to. From the main controller 51,
A transmission signal Vs having the format shown in is sent out, and the wall switch 52, control terminal 53, and card insertion type switch A are controlled. That is, the transmission signal Vs includes a start pulse ST indicating the start of signal transmission,
A bipolar (± 24V)
It is a time division multiplexed signal (FIG. 7b), and data is transmitted by pulse width modulation. The wall switch 52, the control terminal 53, and the card insertion type switch A each receive a transmission signal Vs received via the transmission line 5.
When the address data AD matches the preset address data, the control data CD of the transmission signal Vs is taken in, and the reply data is sent to the current mode signal (transmission mode signal) in synchronization with the signal return period WT of the transmission signal Vs. The signal is sent back by short-circuiting the lines Ls via an appropriate low impedance.

On the other hand, the main controller 31 is provided with dummy signal transmitting means and interrupt processing means. The dummy signal transmitting means always sends out a transmission signal Vs with the mode data MD in a dummy mode. Furthermore, when an interrupt signal Vi as shown in FIG.
Alternatively, the card insertion type switch A can be accessed to send back the reply data. That is, when the wall switch 52 is operated or the card 3 is inserted or removed from the card insertion type switch A, the interrupt signal Vi is generated. The main controller 51 creates control data CD to be sent to the control terminal 53 that controls the corresponding load L based on the reply data sent back from the wall switch 52 or the card insertion type switch A as described above. At the same time, by time-division multiplexing the control data CD to the control terminal 53 via the transmission line 5, each load L is individually controlled on and off. In the main control device 51, a correspondence relationship with a control terminal device 53 equipped with a load L to be controlled is set in response to reply data from the wall switch 52 and the card insertion type switch A, and according to this correspondence relationship. The load L of the control terminal 53 is controlled to be turned on or off.

The wall switch 52, the control terminal 53, and the card insertion type switch A rectify and smooth the transmission signal Vs that is constantly transmitted to the transmission line 5 and use it as a power source. Also,
In the control terminal 53, the power supply to the load L is connected to the load power supply line (
In the card insertion type switch A, the control power line (AC24V) 7 is connected to the remote control transformer 54 separately from the transmission line 5.
Power is supplied to the light emitting diode 31 and the like through the light emitting diode 31 and the like. Furthermore, a selector 55 equipped with a large number of switches and displays is connected to the transmission line 5, and can be used to collectively monitor the operation status of the wall switch 52 and card insertion type switch A, and to control the control terminal 53. The connected load L can be controlled. Therefore, if this remote control system is used in a hotel etc., each room R
A wall switch 52, a load L connected to a control terminal 53, a card insertion type switch A are arranged, and a selector 55
All you have to do is place it at the front. For each room R, as shown in FIG. Only when card 3 is inserted into formula switch A,
Main controller 5 so that operation of wall switch 52 becomes effective.
Configure 1.

The card insertion type switch A has a configuration as shown in FIG. 9 so that it can be used in the above-mentioned remote control system. That is, the terminal T1 connected to the transmission line 5 and the terminal T2 connected to the control power line 7
It is equipped with The transmission signal received through the terminal 5 is transmitted to a terminal processing section 36 mainly composed of a microprocessor.
is input. Further, the power supply of the terminal processing section 36 is connected to the terminal T
The transmission signal input from 1 is rectified by the power supply circuit section 37,
Obtained by stabilization. Furthermore, the reply data is transmitted by turning on and off a transistor Q1 provided in the reply signal generating section 38. Terminal processing section 3
Address No. 6 is set by a dip switch 32 serving as an address setting section. The switch body 2 is a changeover switch, and one changeover contact is connected in series with the light emitting element ED of the photocoupler PC, and this series circuit is connected between the DC output terminals of a diode bridge DB whose AC input terminal is connected to the terminal T2. Connected. Photocoupler PC light receiving element PD
is connected to the monitoring input terminal of the terminal processing section 36, and reply data corresponding to the blinking of the light emitting element ED of the photocoupler PC is sent to the transmission line 5. The other switching contact of the switch body 2 is connected to turn on and off a transistor Q2, and a light emitting diode 31 is connected in series to the transistor Q2. A series circuit of transistor Q2 and light emitting diode 31 is connected between the DC output terminals of diode bridge DB. Here, the switch body 2 is configured so that the light emitting element ED is turned off when the card 3 is not inserted.

[0017]

As described above, according to the structure of claim 1, since the on/off state of the switch body is transmitted by the time division multiplex transmission method, compared to the case where the switch body and the load are directly connected. In addition to reducing the number of connections,
The signal terminal that connects the transmission line and the terminal processing section and the power supply terminal that supplies power to the display element are located on the back of the case body, compared to the conventional configuration in which lead wires are pulled out. This has the advantage that there are fewer restrictions on wiring construction. In addition, since it is equipped with a display element that lights up when the card is not inserted into the slot, it indicates the card's location and has the effect of making it easy to find it even in places where the lighting equipment is not lit. be.

[0018] According to a second aspect of the present invention, the base, which constitutes a part of the case body and is attached to a wall surface, etc., has a through hole through which a box screw screwed into the embedded box for the wiring device is inserted, and a wall panel. A hook hole is provided in which a part of the clamping fitting that can be screwed into the tightening screw passing through the through-hole and return the distance from the base is hooked. Therefore, by using a built-in box for wiring devices or using clamps for wiring devices, it is possible to use the same construction method as for wiring devices, and the advantage is that installation is easy. There is.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a side view of the embodiment.

FIG. 4 is a rear view of the embodiment.

FIG. 5 is a cross-sectional view of the embodiment.

FIG. 6 is a schematic configuration diagram showing a remote control system using an embodiment.

FIG. 7 is an explanatory diagram of the operation of the remote control system using the embodiment.

FIG. 8 is a circuit diagram showing an example of use of the embodiment.

FIG. 9 is a circuit diagram showing an example.

[Explanation of symbols]

1 Case body 2 Switch body 3 Card 5 Transmission line 15 Through hole 16 Hook hole 22 slots 31 Display element 32 DIP switch 36 Terminal processing section 51 Main control device 52 Wall switch 53 Control terminal L Load T1 terminal T2 terminal

Claims (2)

[Claims] Claim 1: A plurality of terminal devices each having an address set individually are connected to a main control device via a transmission line consisting of a pair of lines, and from the main control device to each terminal device,
Time-division multiplex transmission of transmission signals that include address data that specifies each terminal, transmission data to each terminal, and a signal return period that sets the period for receiving return data from the terminal to the main controller. A card insertion type used in a remote control system that controls the load connected to the other terminal according to the monitoring input input to one of the paired terminal devices, with correspondence by address set. a switch body that is turned on and off in response to insertion and removal of a card into a slot opened in the case body; a terminal processing unit that uses the on and off states of the switch body as monitoring input and creates reply data; Equipped with an address setting part for setting the address, a display element that lights up when no card is inserted into the slot, a signal terminal for connecting the transmission line and the terminal processing part, and a power supply for supplying power to the display element. terminals are arranged on the back side of the case body, and when the terminal processing section receives a transmission signal containing address data that matches the address set by the address setting section from the transmission line, it determines the on/off state of the switch body. A card insertion type switch for a remote control system characterized by sending back data to a main control device. [Claim 2] The case body consists of a base that is attached to a wall surface, etc., and a cover that engages with the front surface of the base, and a box screw that is screwed into an embedded box for a wiring device is inserted into the base. A pair of clamps that clamps the periphery of a mounting hole formed in a wall panel between a base and a through hole formed in the wall panel, and that can be screwed onto a tightening screw passing through the through hole to change the distance between the base and the base. 2. The card insertion type switch for a remote control system according to claim 1, further comprising a hook hole into which the part is hooked.