CN114584218B - Low-power-consumption infrared communication circuit and method thereof - Google Patents
Low-power-consumption infrared communication circuit and method thereof Download PDFInfo
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- CN114584218B CN114584218B CN202210144288.4A CN202210144288A CN114584218B CN 114584218 B CN114584218 B CN 114584218B CN 202210144288 A CN202210144288 A CN 202210144288A CN 114584218 B CN114584218 B CN 114584218B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
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Abstract
The invention relates to a low-power consumption infrared communication circuit and a method thereof, which aim at the technical problems of large occupied space, poor anti-interference performance, large influence of external environment on communication and large debugging difficulty of the existing similar products. The circuit board of the low-power consumption infrared communication circuit is provided with a microprocessor, a receiving and transmitting switching circuit device, a transmitting driving circuit device, an infrared conversion device and an integrated infrared conversion head, wherein the microprocessor periodically controls the receiving and transmitting switching circuit to monitor infrared signals in the receiving process of the infrared signals, and when continuous infrared signal input is found, the receiving and transmitting switching circuit is switched to a continuous receiving state to wait for receiving data; the microprocessor generates a control signal for transmitting and receiving in the transmitting process of the infrared signal, transmits the control signal to the receiving and transmitting switching circuit device for modulation, and transmits the modulation signal to the transmitting driving circuit device for converting the received control signal and the modulation signal into a control driving signal of the infrared conversion device.
Description
Technical Field
The invention relates to an infrared communication circuit in the field of communication, in particular to a low-power consumption infrared communication circuit and a method thereof.
Background
The infrared communication is to transmit data through infrared rays, and in early development of computer technology, the data are transmitted through cables, the transmission and connection of the cables are troublesome, and a special interface is needed, so that inconvenience is brought. Then, wireless data transmission technologies such as infrared, bluetooth and 802.11 are available later. Infrared is used as a communication mode, and has wide application in various fields due to the advantages of non-contact, low power consumption, simple application and the like. Some infrared communication circuits exist, such as application number 202021167410.2, grant date 2020.11.27, and the title of the utility model "a communication device and near infrared communication circuit" disclosed in chinese patent literature; some of the infrared communication circuits are applied to electric meters or water meters, such as application number 202011224058.6 disclosed in Chinese patent literature, application publication date 2021.01.12, and the utility model name "high-speed infrared communication system and method of Internet of things water meter". However, the communication circuits used at present are all used for receiving and transmitting the infrared tubes respectively, so that the occupied space is large, the communication angle is harsh, the anti-interference performance is poor, the influence of the external environment on the communication is large, and the debugging difficulty is high.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a low-power-consumption infrared communication circuit based on infrared as a data carrier and a method thereof for solving the technical problems of large occupied space, poor anti-interference performance, large influence of external environment on communication and large debugging difficulty of the existing similar products. The aim is achieved by the following technical scheme.
The low-power consumption infrared communication circuit is arranged on a circuit board of the instrument equipment, and infrared signals are sent and received by a circuit of the circuit board; the circuit board is characterized by being provided with a microprocessor, a receiving and transmitting switching circuit device, a transmitting driving circuit device, an infrared conversion device and an integrated infrared conversion head.
The infrared conversion device comprises a received signal amplification processing device, a signal demodulation device and a signal shaping device.
According to the structural characteristics of the circuit design, the method comprises the following steps: the microprocessor periodically controls the receiving and transmitting switching circuit to monitor the infrared signals in the receiving process of the infrared signals, and when continuous infrared signal input is found, the receiving and transmitting switching circuit is switched to a continuous receiving state to wait for receiving data; the microprocessor generates a control signal for transmitting and receiving in the transmitting process of the infrared signal, transmits the control signal to the receiving and transmitting switching circuit device, modulates data to be transmitted, and then transmits the modulated signal to the transmitting driving circuit device, and the transmitting driving circuit device converts the received control signal and the modulated signal into a control driving signal of the infrared conversion device.
The receiving process of the infrared signal is that the integrated infrared conversion head receives the infrared signal and converts the infrared signal into a weak current signal, the current signal is amplified by the amplifying circuit and then is transmitted to the shaping circuit, the shaping circuit converts the current signal into a voltage signal and transmits the voltage signal to the microprocessor, and the microprocessor demodulates the voltage signal to obtain transmitted data.
The transmission process of the infrared signals is that the control driving signals are converted into the infrared signals through the integrated infrared conversion head and are emitted outwards.
The invention has reasonable structural design, small space occupation, small volume of instrument equipment, simple and convenient debugging, small influence by external environment, good anti-interference performance and high communication quality; the infrared communication circuit is suitable for being used as an infrared communication circuit of meter equipment such as an ammeter or a water meter and the like, and the structural improvement of similar products.
Drawings
Fig. 1 is a block diagram of the system flow of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The structure of the present invention is further described by the following detailed description. The low-power consumption infrared communication circuit is arranged on a circuit board of the instrument equipment, and the circuit of the circuit board sends and receives infrared signals; the circuit board is provided with a microprocessor, a receiving and transmitting switching circuit device, a transmitting driving circuit device, an infrared conversion device and an integrated infrared conversion head; the infrared conversion device comprises a received signal amplifying and processing device, a signal demodulation device and a signal shaping device. The receiving process and the transmitting process of the infrared signal are specifically as follows:
The receiving process comprises the following steps: the microprocessor periodically controls the receiving and transmitting switching circuit to monitor infrared signals, and when continuous infrared signal input is found, the receiving and transmitting switching circuit is switched to a continuous receiving state to wait for receiving data. The integrated infrared conversion head converts the received infrared signal into a weak current signal, the current signal is amplified by the amplifying circuit and then is transmitted to the shaping circuit, the shaping circuit converts the current signal into a voltage signal and transmits the voltage signal to the microprocessor, and the microprocessor demodulates the voltage signal to obtain transmitted data.
The transmission process comprises the following steps: the microprocessor generates a control signal for transmission and reception, transmits the control signal to the transceiver switching circuit device, modulates data to be transmitted, and transmits the modulated signal to the transmission driving circuit device, and the transmission driving circuit device converts the received control signal and the modulated signal into a control driving signal of the infrared conversion device. The integrated infrared conversion head converts the control driving signal into an infrared signal and emits the infrared signal outwards.
The circuit board is provided with at least two receiving and transmitting switching circuit devices, and the devices correspond to each circuit module; the method comprises the following specific steps: the infrared signal is received by the integrated infrared conversion head, then is transmitted by an infrared receiving control signal, and sequentially enters the microprocessor control module through the received signal amplifying and processing circuit module, the signal demodulation circuit module and the signal shaping circuit module, the microprocessor control module receives the received signal, then one path of the received signal is transmitted to the first receiving and transmitting switching circuit module through the receiving and transmitting control signal, one path of the received signal is transmitted to the transmitting driving circuit module through the infrared transmitting control signal, and the modulated signal is transmitted back to the integrated infrared conversion head; the other path of the first receiving-transmitting switching circuit module is transmitted to the second receiving-transmitting switching circuit module through an infrared receiving control signal, and is transmitted back to the integrated infrared conversion head through the infrared receiving control signal; the microprocessor control module receives the other path of modulated data, sends the modulated data to the emission driving circuit module, and sends the modulated signal back to the integrated infrared conversion head.
In summary, the low-power consumption infrared communication circuit abandons the conventional mode of using a single infrared tube for receiving and transmitting, reduces the occupied space of the device, adopts the receiving and transmitting control circuit to solve the interference problem, amplifies and reshapes signals by the circuit, effectively improves the communication quality, and has simple and convenient debugging and small influence by external environment due to the adoption of the single infrared conversion tube.
Claims (1)
1. The low-power consumption infrared communication circuit is arranged on a circuit board of the instrument equipment, and infrared signals are sent and received by a circuit of the circuit board; the circuit board is provided with a microprocessor, a receiving and transmitting switching circuit device, a transmitting driving circuit device, an infrared conversion device and an integrated infrared conversion head;
The infrared conversion device comprises a received signal amplification processing device, a signal demodulation device and a signal shaping device;
The receiving process and the transmitting process of the infrared signal are specifically as follows:
the receiving process comprises the following steps: the microprocessor periodically controls the receiving and transmitting switching circuit to monitor infrared signals, and if continuous infrared signal input is found, the receiving and transmitting switching circuit is switched to a continuous receiving state to wait for receiving data; the integrated infrared conversion head converts the received infrared signal into a weak current signal, the current signal is amplified by the amplifying circuit and then transmitted to the shaping circuit, the shaping circuit converts the current signal into a voltage signal and transmits the voltage signal to the microprocessor, and the microprocessor demodulates the voltage signal to obtain transmitted data;
the transmission process comprises the following steps: the microprocessor generates a transmitted and received control signal, transmits the control signal to the receiving and transmitting switching circuit device, modulates data to be transmitted, and then transmits the modulated signal to the transmitting driving circuit device, and the transmitting driving circuit device converts the received control signal and the modulated signal into a control driving signal of the infrared conversion device; the integrated infrared conversion head converts the control driving signal into an infrared signal and emits the infrared signal outwards;
The circuit board is provided with at least two receiving and transmitting switching circuit devices, each device corresponds to each circuit module respectively,
The method comprises the following specific steps: the infrared signal is received by the integrated infrared conversion head, then is transmitted by an infrared receiving control signal, and sequentially enters the microprocessor control module through the received signal amplifying and processing circuit module, the signal demodulation circuit module and the signal shaping circuit module, one path of the received signal is transmitted to the first receiving and transmitting switching circuit module through the receiving and transmitting control signal, one path of the first receiving and transmitting switching circuit module is transmitted to the transmitting driving circuit module through the infrared transmitting control signal, and the modulated signal is transmitted back to the integrated infrared conversion head; the other path of the first receiving-transmitting switching circuit module is transmitted to the second receiving-transmitting switching circuit module through an infrared receiving control signal, and is transmitted back to the integrated infrared conversion head through the infrared receiving control signal; the other path of modulated data received by the microprocessor control module is sent to the transmission driving circuit module, and the modulated signal is sent back to the integrated infrared conversion head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210144288.4A CN114584218B (en) | 2022-02-17 | 2022-02-17 | Low-power-consumption infrared communication circuit and method thereof |
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| CN202210144288.4A CN114584218B (en) | 2022-02-17 | 2022-02-17 | Low-power-consumption infrared communication circuit and method thereof |
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| CN114584218A CN114584218A (en) | 2022-06-03 |
| CN114584218B true CN114584218B (en) | 2024-07-30 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209625435U (en) * | 2018-12-21 | 2019-11-12 | 金卡智能集团股份有限公司 | A kind of infrared transmitting and receiving integral circuitry and gas meter, flow meter |
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| US7474857B2 (en) * | 2004-07-21 | 2009-01-06 | Zilog, Inc. | Recovering energy from an IrDA/remote control transmitter circuit |
| DE502005006541D1 (en) * | 2004-07-12 | 2009-03-12 | Atmel Germany Gmbh | MODULATOR AND MODULATION METHOD FOR A DEVICE FOR WIRELESS DATA TRANSMISSION |
| KR20070023429A (en) * | 2005-08-24 | 2007-02-28 | 엘지전자 주식회사 | Infrared communication device using universal serial bus |
| JP5506593B2 (en) * | 2010-08-11 | 2014-05-28 | 株式会社日立製作所 | Sensor data collection system |
| US20130266322A1 (en) * | 2012-04-10 | 2013-10-10 | Shan-Gow Lo | Infrared Remote Control Switching Method Through A Wireless Transmission |
| CN203405795U (en) * | 2013-08-15 | 2014-01-22 | Tcl通力电子（惠州）有限公司 | Receiving and transmitting circuit of infrared touch screen and infrared touch screen |
| CN107820714B (en) * | 2016-06-24 | 2021-07-02 | 广东易百珑智能科技有限公司 | Controller with electric energy generating device and control system thereof |
| CN109104211A (en) * | 2017-06-21 | 2018-12-28 | 广东华美骏达电器有限公司 | Infrared wireless communication and wireless power integral circuitry system |
| CN208421237U (en) * | 2018-06-11 | 2019-01-22 | 深圳市镭神智能系统有限公司 | Light emitting unit, optical signal detecting module, optical system and laser radar system |
| CN109035744A (en) * | 2018-09-25 | 2018-12-18 | 广州天空创想电子科技有限公司 | Infrared switch control module |
| CN112217571B (en) * | 2019-07-09 | 2022-02-22 | 博通集成电路（上海）股份有限公司 | CMOS single-tube infrared transceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209625435U (en) * | 2018-12-21 | 2019-11-12 | 金卡智能集团股份有限公司 | A kind of infrared transmitting and receiving integral circuitry and gas meter, flow meter |
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