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Infrared communication system for full duplex communication
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An infrared communication, full-duplex technology, applied in the field of infrared communication, can solve problems such as practical application difficulties, easy reflection and refraction of light waves, etc., and achieve the effects of improving communication efficiency, simplifying circuits, and ensuring accuracy
Active Publication Date: 2020-05-19
深圳市杰纳瑞医疗仪器股份有限公司
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Problems solved by technology
[0004] Because light waves are easily reflected and refracted when they are transmitted in space, infrared communication can only work in half-duplex mode, which brings difficulties to practical applications.
Method used
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specific Embodiment approach 1
[0056] A kind of infrared communication system of full-duplex communication of the present invention, as figure 1 As shown, it includes a host, a host communication module, a plug-in module, and a plug-in module communication module. The host communication module includes a first control module, a first infrared modulation and demodulation module, a first infrared transceiver module, a host, a first control module, The first infrared modulation and demodulation module and the first infrared transceiver module are connected sequentially; the plug-in module communication module includes a second control module, a second infrared modulation and demodulation module, a second infrared transceiver module, a plug-in module, a second control module, The second infrared modulation and demodulation module and the second infrared transceiver module are connected in sequence.
[0057] between the host and the first control module, between the first control module and the first infrared mo...
specific Embodiment approach 2
[0072] In the infrared communication system of a kind of full-duplex communication of the present invention, the first control module controls sending and receiving, comprises the following steps:
[0073] A1, start;
[0074] A2. Check whether the UART flag is true, if so, go to the next step, if not, go to A7;
[0075] A3. Allow UART to send, prohibit UART to receive;
[0076] A4. Check whether the UART sending queue is empty, if yes, go to the next step, if not, go to A9;
[0077] A5. Send data frame;
[0078] A6. Set the response command flag to true;
[0079] A7. Check whether the sending queue is empty and the response command flag is true, if so, go to the next step, if not, go to A10;
[0080] A8, UART sends data, turn to A12;
[0081] A9, UART sends data, transfer to A4;
[0082] A10. Check whether the sending time exceeds the set value of the sending time and whether the response command flag is true, if so, go to the next step, if not, go to A13;
[0083] A11,...
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Abstract
The invention discloses an infrared communication system for full duplex communication. The system comprises a host, a host communication module, a plug-in module and a plug-in module communication module; the host communication module comprises a first control module, a first infrared modulation and demodulation module and a first infrared receiving and transmitting module; the host, the first control module, the first infrared modulation and demodulation module and the first infrared receiving and transmitting module are connected in sequence; the plug-in type module communication module comprises a second control module, a second infrared modulation and demodulation module and a second infrared receiving and transmitting module, and the plug-in type module, the second control module, the second infrared modulation and demodulation module and the second infrared receiving and transmitting module are connected in sequence. Data is actively sent and received through the host, and the plug-in module receives the data when the host sends the data in a query mode and sends the data to the host after receiving is completed, so the problem of communication errors caused by light refraction in infrared communication is solved, and full duplex communication is achieved.
Description
technical field [0001] The invention relates to the technical field of infrared communication, in particular to an infrared communicationsystem for full-duplex communication. Background technique [0002] At present, infrared communication is widely used in medical equipment such as plug-in monitors. [0003] Infrared communication uses the transmission of invisible infrared light in the air to transmit information, which can realize the complete isolation of electrical systems, and is a commonly used and reliable means of data transmission. Due to the short wavelength of infrared rays, the ability to diffract to obstacles is poor, and the distance is short, point-to-point straight-line data transmission can only transmit information, and the security is strong. [0004] Because light waves are easily reflected and refracted when they are transmitted in space, infrared communication can only work in half-duplex mode, which brings difficulties to practical applications. ...
Claims
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