RU2143181C1 - Device for remote switching of electric equipment - Google Patents

Abstract

FIELD: electronic equipment, in particular, remote control of TV sets, air coolers, other types of radio electronic and electric equipment. SUBSTANCE: device has remote control, which outputs encoded signals, input device, which receives encoded signals. Outputs of input unit are connected to signal inputs of decoder and capacitance power accumulation unit, which output is connected to power supply input of decoder, which output is connected to signal input of electronic commutation gates. Electric equipment is connected to mains power supply through said electronic commutation gates. This results in possibility to decrease useless power consumption of electric equipment, which is in idle mode, but ready for remote control of its operation mode. Device may be used for direct current and alternating current power supply. EFFECT: increased speed of control, decreased power consumption, increased reliability and safety against fire, simplified design of power supply circuit. 3 cl, 2 dwg

Description

 The device relates to electronic equipment and can be used for remote control of various electrical devices: televisions, other electronic equipment and electrical appliances.

 A device for remotely turning on and off an electric apparatus comprising a remote control / remote / configured to emit encoded signals, an input device configured to receive encoded signals, a decoder that decodes the received encoded signals, the decoder input is connected to the output of the input device, and output - with a switching key, the power supply input of the electrical apparatus through a switching key is connected to the supply network [1].

 The known device provides for the inclusion of an electrical apparatus in the operating mode / PP / from standby mode / DR /, in which part of the electrical apparatus remains connected to the mains to receive the encoded signal inclusion in the operating mode - this is a disadvantage of such a technical solution.

 The design of the device provides for a complete shutdown, but the consumer often does not use the "Network-off" button on the electric device, but transfers it to the DR in order to be able to turn on the PP again from the remote control. Therefore, part of the circuit is constantly under operating voltage, which can lead to failure and even fire, for example, as a result of an over-permissible increase in voltage during an accident on the power line. In addition, the round-the-clock inclusion in the network of many millions of power sources providing DR, although with a power consumption of less than 10 W each, leads to the useless consumption of a large amount of electricity and, as a result, to excessive pollution of the Earth.

 The problem solved by the invention is the prevention of useless consumption of electricity by an electric apparatus in an idle state while maintaining readiness for remote switching on of the operating mode.

 The technical result that can be obtained by using the device is an increase in control efficiency, a decrease in the total energy consumption, an increase in reliability and fire safety, a simplification of the power supply circuit.

 To solve the problem in a known device for remote switching on an electric apparatus, comprising a remote control configured to emit encoded signals, an input device configured to receive encoded signals, a decoder, the signal input of which is connected to the output of the input device, according to the invention, an energy storage device and electronic switching keys, the signal input of the energy storage device is connected to the output of the input device, and the output is connected to the power input of the decoder, the output is dek dera connected to the signal input of the electronic switching key input unit through supply of electric switching electronic switches connected to the supply mains.

Possible device options:
- the input device is made in the form of a matrix of photodiodes;
- the input device is made in the form of a frame radio antenna.

 By turning on the decoder while receiving encoded signals and introducing the necessary additional elements into the device, it was possible to solve the problem with the achievement of the aforementioned technical result.

 FIG. 1 is a structural diagram of a device for remotely turning on and off an electric apparatus.

 FIG. 2 is a functional diagram of a device for remotely turning on and off an electric apparatus.

 The device for remote turning on and off the electrical apparatus / Fig. 1 / contains a remote control 1 configured to emit encoded signals, an input device 2 configured to receive encoded signals, the outputs of which are connected to the signal inputs of energy storage 3 and decoder 4, the output of energy storage 3 is connected to the power input of decoder 4, decoder output 4 is connected to the signal input of electronic switching keys, the electrical apparatus 6 is connected to the supply network via electronic switching keys.

 The console 1 and decoder 4 are known nodes.

 The input device 2, it is advisable to perform in the form of a matrix of photodiodes or multi-turn frame radio antenna to increase the level of received encoded signals.

 The device operates as follows / Fig. 2 /.

 The console 1 emits encoded pulse signals with a carrier frequency in the infrared, optical or radio range. The input device - for the case with infrared rays - the photodiode array included in the photovoltaic mode generates a photocurrent in accordance with the received signal.

 Consider the operation of the elements included in the device / Fig. 2 /.

 The encoded signals received by the input device are detected. The energy of the detected signals is accumulated by a capacitive storage 3-1 and, upon reaching the required level, it energizes the decoder 4 - the transmitter’s proximity key transponder access system is protected by an electronics [2].

 In the RC-5 code format, the repetition period of a series of pulses of encoded signals is 0.1 sec, therefore, even with a short press of a button on the remote control, the input device receives several series of pulses. The energy of the first of them can accumulate to power the decoder, and subsequent series are used to identify the code. The power stabilizer of the decoder 3-2 serves to ensure that the voltage is supplied to the decoder when it is reached on the drive 3-1 of the nominal and that this voltage is maintained at the required level. The trigger element may be a tunnel diode. Upon recognition of the code, decoder 4 provides control voltages to the input of electronic keys 5.

 Consider the operation of the key on one of the wires of the supply network. The switching element is a bi-directional trinistor - the triac VS1 is opened by applying voltage from the output A of the decoder 4 to the control electrode of the triac after recognizing the enable code. Then the triac VS1 is kept open due to the voltage taken from the resistor R1. The voltage of the supply network through the open triac VS1 is supplied to the electric device 6 - the device is turned on.

 When a turn-off signal voltage appears at the input of decoder 4, it goes to base VT1. The transistor VT1 opens and by its collector-emitter junction shunts the resistor R1, setting the potential to zero on the control electrode of the triac VS1 - the triac closes, turning off the power to the electrical apparatus.

 When powering the electrical apparatus from a direct current source, the triacs can be replaced with trinistors in compliance with the corresponding polarity.

 The remote on and off device can be introduced as part of a multifunctional system for remote control of an electrical apparatus.

Sources of information
1. Japan patent JP58-5525A, 01/31/83.

 2. The magazine "Auto-review", Moscow, N 12, 1996, p. 8.

Claims (3)

 1. The remote control device of an electrical apparatus comprising a remote control configured to emit encoded signals, an input device configured to receive encoded signals, a decoder, a signal input of a decoder connected to an output of an input device, characterized in that the energy storage of received signals and electronic switching keys, the input of the energy storage device is connected to the output of the input device, and the output is connected to the power input of the decoder, the output of the decoder is connected to the signal input electronic switching keys, the electrical apparatus through electronic switching keys is connected to the supply network.  2. The device according to claim 1, characterized in that the input device is made in the form of a matrix of photodiodes.  3. The device according to claim 1, characterized in that the input device is made in the form of a multi-turn frame radio antenna.

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