JP2008228427A - Switching system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remotely control a load in a concentrated manner by air through a simple and economical facility using existing wiring without change. <P>SOLUTION: A switching system has a switch unit 11 on the same alternating-current wiring L as lighting equipment 3. The switch unit 11 is provided with: a manual switch 12 that outputs an operation signal; a wireless circuit 13 that receives a control signal from the outside; a relay 14 that opens and closes a distribution line L2 to the lighting equipment; a control circuit 15 that turns on/off the relay 14 based on the operation signal or the control signal; a first power supply circuit 16 that takes operating power for the wireless circuit 13 and the control circuit 15 out of the distribution line L2 when the relay 14 is off; and a second power supply circuit 17 that takes operating power for the wireless circuit 13 and the control circuit 15 out of the distribution line L2 when the relay 14 is on. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a switching system that wirelessly controls a load on an AC wiring.

  As shown in FIG. 5A, in the general AC wiring, one distribution line L1 is directly connected to the load 52 from the AC power supply 51, and the other distribution line L2 is mechanically connected to the mechanical power switch 53 from the AC power supply 51. Is connected to a load 52 via For this reason, only one pole of the AC power supply 51 is energized to the manual switch 53. When this type of AC wiring L is used to control the load 52 wirelessly, instead of the manual switch 53, an electric switch 54 such as a relay or triac is connected in series with the load 52 as shown in FIG. It is necessary to provide it. However, in this case, power for operating the electric switch 54 and its control circuit cannot be obtained from the existing AC wiring L.

In view of this, a switching system that wirelessly controls on / off of a load without using existing wiring has been proposed. For example, Patent Document 1 describes a switching system 61 as shown in FIG. In this system 61, a power line PL is wired between a breaker 62 and a load 52, a reception control unit 64 for controlling the electric switch 54 is provided in the switch unit 63 on the power line PL, and an operation unit 65 attached to a wall surface. A battery and a wireless transmission unit are built in, and the electric switch 54 is turned on / off by a wireless signal from the operation unit 65 so that the load 52 can be controlled.
JP-A-9-251894

  However, according to the conventional switching system 61, it is troublesome to periodically replace the battery of the operation unit 65, and it is necessary to newly route the power supply line PL in order to secure the power supply of the switch unit 63. Conventionally, there is also known a system that uses an existing manual switch on a wall and a remote controller together to turn on / off an electric switch attached to a load. However, according to this, a manual switch on an existing wiring is turned off. However, when the electric switch cannot be operated, for example, when the lighting of a plurality of rooms is centrally controlled from a remote place, there is a problem that the lighting cannot be controlled in some rooms.

  An object of the present invention is to solve the above-mentioned problems and to provide a novel switching system capable of centrally and remotely controlling a load with a simple and economical facility using existing wiring as it is.

  In order to solve the above-described problems, a switching system according to the present invention is a manual switch that outputs an operation signal to a switch unit installed on the same AC wiring as the load in a system that wirelessly controls a load on the AC wiring. A wireless circuit that receives a control signal from the outside, an electric switch that opens and closes a distribution line leading to a load, a control circuit that turns ON / OFF the electric switch based on an operation signal or a control signal, and an OFF state of the electric switch A first power supply circuit that extracts the operating power of the radio circuit and the control circuit from the AC wiring, and a second power supply circuit that extracts the operating power of the radio circuit and the control circuit from the AC wiring when the electric switch is ON, To do.

  The switching system of the present invention is not limited to a specific application, and can be used, for example, for ON / OFF control or output adjustment of various electric devices such as lighting equipment, air conditioning equipment, alarm devices, and acoustic equipment. In particular, since the switch unit includes a wireless circuit, it is possible to perform centralized control or remote control of a load that is distributed and installed in a plurality of rooms in a house or business office using short-range wireless communication. In centralized or remote control, a switch unit installed on an AC wiring in a specific room can function as a remote control unit for controlling the load in another room. It is also possible to construct a system that centrally controls the load of all rooms through a switch unit for each room by a common remote control unit.

  The radio circuit of the switch unit has a transmission / reception function, receives radio control signals such as radio waves, infrared rays, and ultrasonic waves from the remote control unit, and transmits a load status signal to the remote control unit. The control circuit turns on / off the electric switch based on a control signal from the radio circuit or an operation signal from the manual switch. Then, according to the ON / OFF state of the electric switch, the two power supply circuits supply operating power to the radio circuit and the control circuit. Here, it is preferable to connect the first power supply circuit and the second power supply circuit to the same distribution line as the electric switch so that the switch unit can be easily replaced with an existing manual switch. Note that either single-phase two-wire or single-phase three-wire indoor wiring can be used for AC wiring.

  According to the switching system of the present invention, since the two power supply circuits are provided in the switch unit, the radio circuit and the control circuit operate using the power supplied from the first power supply circuit when the electric switch is OFF. When the electric switch is ON, it operates using the power supplied from the second power supply circuit. Therefore, there is no need to install a battery in the switch unit, there is no need to route a new power line, and the excellent effect that the load can be remotely or centrally controlled by simple and economical equipment using the existing AC wiring as it is. Play.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a switching system for centrally and remotely controlling lighting fixtures installed in a plurality of rooms. FIG. 2 shows a conceptual configuration of the switch unit provided on the AC wiring in one room in the switching system of FIG. FIG. 3 shows the configuration of the switch unit of FIG. 2 in more detail. FIG. 4 conceptually shows the configuration of a centralized switch unit and a personal computer for remotely controlling lighting fixtures in a plurality of rooms in the switching system of FIG.

  As shown in FIG. 1, the switching system 1 of this embodiment is configured to centrally and remotely control one or a plurality of lighting fixtures 3 installed in each room 2 such as a house or business office by short-range radio. It is configured. In each room 2, the AC wiring L is constructed so as to extend between the AC power supply 4 and the lighting fixture 3, and the switch unit 11 is installed on the same AC wiring L as the lighting fixture 3. The lighting fixture 3 is attached to the ceiling surface of each room 2 by a hook-type or screw-type ceiling 5. A collective switch unit 31 and a personal computer 41 as remote control units are installed in a specific room or management room 6.

  As shown in FIG. 2, the switch unit 11 is attached to the wall surface of the room 2 in place of the existing manual switch 53 (see FIG. 5). The switch unit 11 includes a manual switch 12 that outputs an operation signal by a resident's operation, a wireless circuit 13 that wirelessly communicates a control signal with an external collective switch unit 31 or a personal computer 41, and a distribution line that leads to the luminaire 3 A relay 14 is provided as an electric switch that opens and closes L2 (the line on the side where the existing manual switch 53 is installed). In addition to the relay 14, various switching elements such as a triac can be used as the electric switch.

  Further, the switch unit 11 includes a control circuit 15 equipped with a microprocessor for turning on / off the relay 14 based on an operation signal from the manual switch 12, a control signal from the collective switch unit 31 or the personal computer 41, The first power circuit 16 takes out the operating power of the wireless circuit 13 and the control circuit 15 from the same distribution line L2 as the relay 14 in the OFF state, and the operating power of the wireless circuit 13 and the control circuit 15 in the ON state of the relay 14 A second power supply circuit 17 to be taken out from the light source and a pilot lamp 18 for displaying whether the lighting fixture 3 is turned on or off are provided.

  As shown in FIG. 3, the wireless circuit 13 includes a receiving unit 131 that receives a control signal from the collective switch unit 31 or the personal computer 41, and a transmitting unit 132 that transmits a status signal of the lighting fixture 3 to each unit 31, 41. I have. A manual switch 12, a relay 14, and a pilot lamp 18 are connected to the control circuit 15. When the resident operates the manual switch 12 or when the wireless circuit 13 receives a remote control signal, the control circuit 15 turns on / off the relay 14 to turn on / off the lighting fixture 3. The energization of the pilot lamp 18 is controlled in synchronization with the lighting / lighting-off of the lighting fixture 3.

  The first power supply circuit 16 includes a capacitor 161, a rectifier 162, an electrolytic capacitor 163, and a diode 164. The capacitor 161 and the rectifier 162 are provided on a bypass wiring 21 extending between two terminals Ta and Tb on the distribution line L2. It has been. The second power supply circuit 17 includes a transformer 171, a rectifier 172, an electrolytic capacitor 173, and a diode 174, and the transformer 171 is provided in series with the relay 14 between the terminals Ta and Tb. A connection point 22 between the diodes 164 and 174 in both power supply circuits 16 and 17 is connected to the radio circuit 13 and the control circuit 15 via a power supply wiring 23. In addition, between the two poles of the ceiling 5, a capacitor 24 and a resistor 25 for flowing an alternating current from the distribution line L1 side to the bypass wiring 21 are provided in series. However, when using an incandescent lamp that flows a weak current Can omit the capacitor 24 and the resistor 25.

  As shown in FIG. 4A, the collective switch unit 31 includes a control circuit 32, a radio circuit 33, a plurality of push button switches 34, and an indicator lamp 35, and responds to the operation of the switch 34, and the corresponding room 2 A signal for controlling the lighting fixture 3 is transmitted to the switch unit 11 and a status signal of the lighting fixture 3 is received from the switch unit 11 to control the corresponding indicator lamp 35 to turn on / off each room 2. It is configured so that the status can be confirmed remotely. As shown in FIG. 4B, the personal computer 41 includes a CPU 42, a wireless communication device 43, and a recording device 44, transmits a control signal for the lighting fixture 3 to the switch unit 11, and switches a status signal for the lighting fixture 3. It is configured to be able to receive from the unit 11 and record in the recording device 44.

  In the switching system 1 configured as described above, when the relay 14 of the switch unit 11 is OFF, an alternating current flows from the power source 4 through the distribution line L1, the capacitor 24 of the ceiling 5, and the resistor 25 into the bypass wiring 21. Then, the first power supply circuit 16 converts alternating current into direct current by the rectifier 162, and supplies direct current power from the diode 164 to the wireless circuit 13 and the control circuit 15 via the power supply wiring 23. For this reason, the radio circuit 13 can receive a control signal from the external centralized switch unit 31 or the personal computer 41, and the control circuit 15 turns on the relay 14 in response to the control signal from the outside or the operation signal from the manual switch 12. Can do.

  On the other hand, when the relay 14 is ON, an alternating current flows through the distribution line L1 and L2, the lighting fixture 3 is turned on, and the first power supply circuit 16 does not function. However, the second power supply circuit 17 drops the AC voltage by the transformer 171, converts the AC output of the transformer 171 to DC by the rectifier 172, and controls DC power from the diode 174 via the power supply wiring 23 and the radio circuit 13. To the circuit 15. Therefore, the radio circuit 13 can receive a control signal from the centralized switch unit 31 or the personal computer 41, and the control circuit 15 can turn off the relay 14 in response to an external control signal or an operation signal from the manual switch 12. . The transformer 171 is designed to have a voltage drop within 1V so as not to affect the operating voltage of the lighting fixture 3.

  Therefore, according to the switching system 1 of this embodiment, it is not necessary to replace the battery of the switch unit 11 or route a new power supply line, and replace the switch unit 11 and the ceiling 5 by using the existing AC wiring L as it is. The lighting fixture 3 can be accurately controlled with only simple construction. In particular, since the switch unit 11 connects both the first power supply circuit 16 and the second power supply circuit 17 to the same distribution line L2 as the relay 14, only one wiring to which the existing manual switch 53 is attached is provided. There is an advantage that the replacement work can be easily performed.

  In addition, since the switch unit 11 communicates control signals wirelessly, the lighting fixtures 3 in the plurality of rooms 2 can be remotely controlled from the centralized switch system 31 or the personal computer 41, and in the room where the manual switch 12 is OFF. The relay 22 can also be turned on wirelessly, and centralized control such as turning on or turning off all rooms simultaneously can be realized with a simple system. Furthermore, by giving this remote control function to the switch unit 11 in a specific room, it is possible to control a lighting device 3 in another room that is not on the same wiring, and to receive a status signal of the lighting device 3 from another room, It is possible to prevent forgetting to turn off, and it is also possible to construct various switching systems by using the existing wiring in each room as it is.

The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing the configuration of each part without departing from the spirit of the invention, as exemplified below.
(1) Only one of the centralized switch unit 31 and the personal computer 41 is used in the switching system 1 shown in FIG.
(2) In the switching system 1 shown in FIG. 1, the air conditioning equipment installed in each room 2 is intensively remotely controlled using existing AC wiring.
(3) In the switch unit 11 shown in FIG. 2, a dimmer for adjusting the output of the lighting fixture 3 can be connected to the control circuit 15 so that both ON / OFF and dimming of the lighting fixture 3 can be remotely controlled in a centralized manner. Configure as follows.

1 is an overall configuration diagram of a switching system showing an embodiment of the present invention. It is a block diagram which shows the notional structure of this system. It is a block diagram which shows the switch unit of this system in detail. It is a block diagram which shows the remote control unit of this system. It is a block diagram which shows a general alternating current wiring. It is a block diagram which shows the conventional switching system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Switching system 3 Lighting fixture 5 Sealing 11 Operation unit 12 Manual switch 13 Wireless circuit 14 Relay 15 Control circuit 16 1st power supply circuit 17 2nd power supply circuit 31 Collective switch unit 41 Personal computer L AC wiring L1, L2 Distribution line

Claims (2)

  In a system that wirelessly controls a load on an AC wiring, a manual switch that outputs an operation signal to a switch unit installed on the same AC wiring as the load, a wireless circuit that receives a control signal from the outside, and the load An electric switch that opens and closes the distribution line, a control circuit that turns the electric switch on / off based on an operation signal or a control signal, and a first power source that extracts the operating power of the radio circuit and the control circuit from the AC wiring when the electric switch is OFF A switching system comprising: a circuit; and a second power supply circuit that extracts operating power of the radio circuit and the control circuit from the AC wiring when the electric switch is in an ON state.   The switching system according to claim 1, wherein the first power supply circuit and the second power supply circuit are connected to the same distribution line as the electric switch.

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