High power intelligent home infrared communication circuit
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A smart home and infrared communication technology, applied in signal transmission system, electrical program control, general control system, etc., can solve the problems of expensive price, limited communication distance, high cost, etc., achieve flexible space access, facilitate high-speed application, cost-effective effect
Inactive Publication Date: 2016-08-31
CHENGDU KECHUANGGU TECH CO LTD
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[0003] Existing smart home devices are generally connected via Bluetooth or the Internet, which requires additional network communication chips, which are costly. Moreover, existing old-fashioned household appliances generally use infrared communication, and there are few ways to use digital network communication. Although existing household appliances also have Products embedded with smart chips are expensive and not suitable for promotion. Due to the high driving power requirements of the infrared emitting tube, the communication distance is limited in the case of low driving power, so it is not suitable for long-distance use.
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[0022] A high-power smart home infrared communication circuit, including: an input module: used to receive signals and send them to an amplifying and modulating circuit; Level shift circuit; level shift circuit: level shift the signal, convert it into a high-voltage square wave signal and send it to the infrared transmitter module; infrared transmitter module: convert the square wave signal of the level shift circuit into an infrared signal and send it; infrared Receiving module: receive infrared signal, complete the conversion of photoelectric signal and send it to the amplification and demodulation circuit: amplification and demodulation circuit: the signal sent by the infrared receiving module is amplified, filtered and demodulated and then sent to the output module; output module: receives the amplification and demodulation Adjust the signal of the circuit and complete the output.
[0023] The structure of the amplification and modulation circuit is: the negative input ter...
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Abstract
The invention relates to the intelligent home communication field, in particular to a high power intelligent home infrared communication circuit. The high power intelligent home infrared communication circuit includes: an input module, which is used for receiving signals and sending the signals to an amplification modulation circuit; the amplification modulation circuit, which amplifies signals and performs modulation to convert the signals into square-wave signals, and then sends the square-wave signals to a level shift circuit; the level shift circuit, which performs level shift on the signals and sends the signals to an infrared transmission module; the infrared transmission module, which converts the level shift square-wave signals into infrared signals and conducts transmission; an infrared receiving module, which completes optical-to-electric signal conversion and sends the signals to an amplification demodulation circuit; the amplification demodulation circuit, which conducts amplification-filtering demodulation treatment on the signals sent by the infrared receiving module and then sends the treated signals to an output module; and the output module, which completes signal output. The high power intelligent home infrared communication circuit has high performance cost ratio, is easy to realize, and has the characteristics of electromagnetic interference resistance, convenient high speed application and flexible space access, and can be used for realizing point-to-point transmission indoor and outdoor, driving high power infrared transmitting tubes and realizing long-distance communication.
Description
technical field [0001] The invention relates to the field of smart home communication, in particular to a high-power smart home infrared communication circuit. Background technique [0002] Smart home, or smart residence, takes the residence as a platform, combines construction, network communication, information appliances, equipment automation, and integrates systems, structures, services, and management into an efficient, comfortable, safe, convenient, and environmentally friendly living environment. It is convenient to connect various devices in the home, such as audio and video equipment, lighting system, curtain control, air conditioning control, security system, digital theater system, network appliances, etc., through the home network. [0003] Existing smart home devices are generally connected via Bluetooth or the Internet, which requires additional network communication chips, which are costly. Moreover, existing old-fashioned household appliances generally use in...
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Application Information
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