KR0128559Y1 - Wireless supply switch control apparatus - Google Patents

Abstract

The present invention relates to a wireless power switch control device for turning a light or a heater into a wireless remote control in a home security system, and the present invention is composed of a wireless remote control and a switch control unit. It is effective to turn on / off the power switch without being disturbed by the object.

The switch control unit is a wireless receiving unit for receiving a signal transmitted from a wireless remote control, a microcomputer for decoding the received signal, a relay switch on / off by the operation control signal of the microcomputer, and discharges when the relay switch is on When the battery is off, the secondary battery is charged.

Description

Wireless power switch controller

1 is a block diagram showing the configuration of a wireless power switch control device according to the present invention.

2 is a circuit diagram of the wireless transmitter of FIG.

3 (a) is a block diagram showing the configuration of the radio receiver of FIG.

3 (b) is a circuit diagram showing a device for supplying power to the switch control unit of FIG.

* Explanation of symbols for main parts of the drawings

1: wireless remote control 2: switch control unit

11: keypad 12,15: micom

13: wireless transmitter 14: wireless receiver

16: relay switch S1: SAW Resonator

L1: loop antenna 31: high frequency amplifier

32: band pass filter 33: mixer

34: local oscillator 35: second amplifier

36: comparator

The present invention relates to a home security system (HOME SECURITY SYSTEM), and more particularly to a wireless power switch control device for turning on or off a lamp or a heater with a wireless remote control.

In general, in order to operate a light or a heater provided only in a building, a switch is provided in series with a power supply line of the light, and the switch turns on / off the light and the heater by turning on / off the power.

Conventionally, an infrared signal is used to operate the power switch. That is, when the keypad of the infrared remote control is pressed, the key signal input from the microcomputer included in the infrared remote control is output as digital data, and the digital data value is output as the infrared LED, and the signal is received by the IRE receiving sensor provided at the receiver. Amplify in OP AMP and output to micom. The microcomputer determines this and controls the power switch of the heater and the lamp.

Since the conventional infrared remote control as described above has a short communication distance, there is an inconvenience that can be controlled by the remote control only within the visible distance of the receiver. In addition, there is a problem between the infrared remote control and the receiver (for example, people, furniture, walls, etc.) and can not operate.

An object of the present invention is to solve the inconvenience as described above, to provide a wireless power switch control device for turning on / off the power switch by a wireless signal using a wireless remote control.

The present invention as a technical means for achieving the above object is a wireless power switch control device for turning on / off the light, the microcomputer to decode the signal input from the keypad to output the command data to the wireless transmitter, and A wireless remote controller including a wireless transmitter configured to convert data output from the microcomputer into a wireless signal, and a wireless receiver configured to receive a wireless signal transmitted from the wireless remote controller, demodulate data from the wireless signal, and output the data to the microcomputer; And a switch control unit configured to read data inputted from a receiving unit to control the operation of the relay switch, and a relay switch to operate the micom operation control signal to turn on / off the light.

Hereinafter, with reference to the accompanying drawings of the present invention.

1 is a block diagram showing the overall configuration of a wireless shut-off control device composed of a wireless remote control 1 and a switch control unit 2 according to the present invention, the wireless remote control 1 is a keypad 11 for key operation, and A microcomputer 12 for decoding the signal received from the keypad 11 and outputting command data, and a high frequency transmitter 13 for modulating and transmitting the digital data output from the microcomputer 12 into a high frequency signal, The switch control unit 2 receives the high frequency signal transmitted from the remote controller 1, modulates the digital signal into a digital signal, and outputs the high frequency receiver 14, and decodes the digital signal input from the high frequency receiver 14 to relay the switch 16. And a relay switch 16 for turning on / off a light by opening and closing operations.

2 is a circuit diagram showing the detailed configuration of the wireless transmitter 13, a high frequency oscillation transistor Q1 for oscillating a high frequency signal, oscillation capacitors C1 and C2 for forming a feedback loop of the oscillation circuit, and a bias resistor R1. , R2, R3, saw resonator S1 resonating a specific frequency, bypass capacitors C3, C4, and loop antenna L1 for transmitting a high frequency signal modulated with an ASK signal.

3 (a) is a block diagram showing the detailed configuration of the radio receiver 14 of FIG. 1, a high frequency amplifier 31 for amplifying a high frequency signal received by an antenna, and a band pass filter for removing noise frequencies other than the transmission frequency. (32), a mixer (33) for mixing the signal output from the band pass filter (32) and the oscillation frequency of the local oscillator (34), a local oscillator (34) for outputting the oscillation frequency to the mixer (33), and And comparing the signal output from the second amplifier 35 with the second amplifier 35 to amplify the signal obtained by converting the frequency characteristic output from the mixer 33, and outputting digital data. It consists of a comparator 36. The digital signal output from the comparator 36 is configured to be output to the microcomputer 15.

3 (b) is a circuit diagram showing a device for supplying power to the switch control unit 2 of FIG. 1, the relay switch 16 is connected in series to the power line connected to the lamp 38, the relay switch 16 Connected to the a and b contacts of the diodes D1, D2, D3 and D4 connected in a bridge form with the a 'and b' contacts, and the secondary battery V is connected through the resistor R4 at the remaining contacts c and d. Configure to connect.

Hereinafter will be described in detail the operation and effect according to the present invention.

In FIG. 1, when the user operates the keypad 11 of the wireless remote control 1, the above-mentioned key signal is input to the microcomputer 12. In FIG. The microcomputer 12 decrypts a signal input from the keypad 11 and outputs a digital command. The digital signal is input to the radio transmitter 13, and the operation of the radio transmitter 13 will be described with reference to FIG.

In FIG. 2, the high frequency oscillation transistor Q1 having the feedback loop by the capacitors C1 and C2 oscillates at a frequency generated by the resonance of the saw resonator S1. Power is applied to the transistor by the bias resistors R2 and R3, and while the data is input to the base, the transistor Q1 oscillates at the frequency oscillated by the saw resonator S1. If no data value is input, the bias of the transistor Q1 is not applied. The output value oscillated by the transistor Q1 is radiated through the loop antenna L1 connected to the collector of the transistor Q1. By the operation as described above, the digital data output from the microcomputer 12 in FIG. 1 is modulated and transmitted by the frequency shift modulation (ASK) method.

The high frequency signal transmitted from the wireless remote controller 1 by the above operation is received by the antenna of the switch control unit and input to the wireless receiving unit 14. The operation of the wireless receiving unit 14 will be described with reference to FIG. do.

In FIG. 3, the high frequency amplifier 31 amplifies the input high frequency signal with low noise and improves the signal sensitivity and outputs the signal to the band pass filter 32. In the band pass filter 32, the frequency outside the reception signal band is blocked and only the signal frequency band is passed through and output to the mixer 33. The mixer 33 mixes the frequency oscillated by the local oscillator 34 and the received signal output from the bandpass filter 32 to output an intermediate frequency signal, and the intermediate frequency signal output from the mixer 33 is It is amplified by the second amplifier 35 and input to the comparator 36. The comparator 36 compares an input signal with a reference voltage and outputs a digital signal. The digital signal is input to the microcomputer 15 of FIG. 1, and the microcomputer 15 decodes the input signal to relay the switch 16. Outputs an on / off control signal. The relay switch 16 operates on or off by a control signal output from the microcomputer 15. As the relay switch 16 is blocked or turned on, the power line supplied to the lamp is turned on / off, and the lamp 38 is turned on / off.

FIG. 3 (b) is a circuit diagram showing a device for supplying power for the switch control unit 2 of FIG. 1 to operate as described above, and the relay switch 16 receiving the off operation signal of the microcomputer 15 is cut off. In this case, a closed circuit using a lamp as a load is configured, power is supplied to the switch control unit 16, and the lamp V is turned off. By the way, when the relay switch 16 is turned on by the ON operation signal of the microcomputer 15, the lamp is turned on and power is not supplied because the closed circuit is not configured in the switch control unit. While the relay switch 16 is in the interrupted state, a voltage is applied to the contacts a and b, and a current flows from the contact c to the contact d to charge the secondary battery V. When the relay switch 16 is turned on while the secondary battery V is charged, AC power flows from the contact a 'to the contact b', the lamp is turned on, and the secondary battery V is discharged to switch the current power. It supplies to the control part 2. By the above operation, the switch control unit 2 receives AC power while the relay switch 16 is shut off, and operates the secondary battery V while the relay switch 16 is turned on. It works.

The present invention as described above has an effect that can be turned on / off without disturbing the object, etc. even outside the visible distance by turning on / off the light with a wireless remote control, there is an excellent effect that can be controlled.

In addition, the secondary battery (V) has an excellent effect that can be operated by receiving power from the secondary battery while the relay switch 16 is conducting.

Claims (3)

A wireless power switch control apparatus for turning a light switch on / off with a wireless remote control, comprising: a keypad 11 having a plurality of keys and a microcomputer that decodes a key signal input from the keypad 11 and outputs a digital command signal. (12), a radio remote control unit (1) having a radio transmitter (13) for mixing a digital signal output from the microcomputer (12) with a high frequency signal and outputting it to an antenna, and a radio transmitted from the radio remote control (1). The wireless receiver 14 receives the signal, removes the carrier signal, outputs the digital signal to the microcomputer 15, and decodes the digital signal input from the wireless receiver 14 to control the operation of the relay switch 16. And a switch control unit (2) having a micom (15) and a relay switch (16) which is operated by an operation control signal of the microcomputer (15) to turn on / off a light (V). Control Value. The oscillation capacitor (C1, C2) for forming a feedback loop of the oscillation circuit, the bias resistor (R1, R2, R3) according to claim 1, ), A saw resonator (S1) that resonates a specific frequency, a bypass antenna (C3, C4), and a loop antenna (L1) for transmitting a high frequency signal modulated with an ASK signal, and the radio receiver (14). A high frequency amplifier (31) for amplifying a high frequency signal received by an antenna, a band pass filter (32) for removing noise frequencies other than the transmission frequency, a signal output from the band pass filter (32), and a local oscillator (34). A mixer 33 for mixing with the oscillation frequency of the local oscillator, a local oscillator 34 for outputting the oscillation frequency to the mixer 33, and a second signal for amplifying a signal whose frequency characteristic is output from the mixer 33 is converted. A signal and a reference voltage output from the amplifier 35, the second amplifier 35 Compared to the radio power switch control apparatus characterized in that it includes a comparator 36 for outputting the digital data to the microcomputer 15 a. 2. The switch of claim 1, wherein the switch controller 2 discharges the diodes D1, D2, D3, D4, each of which is bridged at both ends of the relay switch 16, and when the relay switch 16 is turned on. When the relay switch 16 is turned on by the power supply device comprising a secondary battery (V) to be charged, and a resistor (R4) connected between the connection points of the diodes (D1, D3) and the cathode of the secondary battery (V). Wireless power switch control device characterized in that the power supply.