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A full-duplex communication infrared communication system
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An infrared communication, full-duplex technology, applied in the field of infrared communication, can solve the problems of easy reflection and refraction of light waves, difficult practical application, etc., and achieve the effects of simplifying circuits, improving communication efficiency, and saving costs
Active Publication Date: 2021-02-26
深圳市杰纳瑞医疗仪器股份有限公司
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[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, which 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 An infrared transceiver module, the host, the first control module, the first infrared modulation and demodulation module, and the first infrared transceiver module are connected in sequence; the plug-in module communication module includes the second control module, the second infrared modulation and demodulation module, and the second infrared modulation and demodulation module. The transceiver module, the plug-in module, the second control module, the second infrared modulation and demodulation module, and the second infrared transceiver module are connected in sequence. The host actively sends and receives data, and the plug-in module receives data when the host sends data through query, and sends the data to the host after receiving, which overcomes the communication error problem caused by infrared communication due to light refraction, and realizes full duplex communication.
Description
technical field [0001] The invention relates to the technical field of infrared communication, in particular to an infrared communication system 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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