Transceiver structure, communication system and method for human body communication

A technology of human body communication and communication system, which is applied in the field of human body communication, can solve the problems of less structure and complex structure of two-way communication transceivers, etc., and achieve the effect of error detection and retransmission, and shortening information interaction

Active Publication Date: 2015-03-04
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

However, there are relatively few human body communication transceiver structures for two-way communication at present, while the structures of other wireless two-way communication transceivers are relatively complicated.

Method used

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  • Transceiver structure, communication system and method for human body communication
  • Transceiver structure, communication system and method for human body communication

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Embodiment

[0046] Such as figure 1 Shown is the transceiver structure for human body communication of the present invention, including a microprocessor 1, a baseband processor 2, an isolation switch 3, a filter 4, an electrode plate 5, an amplifier, a wave detector 7, and a comparator 8.

[0047] The microprocessor 1 is a microcomputer, such as an ARM microprocessor, and is connected to the baseband processor 2 for sending data frames to the baseband processor 2 .

[0048] The baseband processor 2 can be, for example, an FPGA (Field-Programmable Gate Araay field programmable gate array) chip, which is connected with the microprocessor 1, the isolation switch 3, and the comparator 8, respectively, for receiving data frames from the microprocessor 1 , add a start frame and a check frame according to the data format, and encode the data, then use the OOK modulation method to select a square wave with the center frequency of the filter 4 as the carrier signal to be sent, and feed back the se...

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Abstract

The invention relates to a transceiver structure, communication system and method for human body communication. The transceiver structure for the human body communication comprises a micro-processor used for receiving and transmitting data frames, verifying data and controlling an isolating switch, a base band processor for coding and decoding data, the isolating switch used for controlling the open and close of a signal channel, a filter for shaping sending signals and filtering noise from received signals, an electrode plate used for sending coupling signals and receiving signals sent from a human body signal channel, an amplifier for amplifying the received signals, a detector used for demodulating the received signals, and a comparator used for comparing the demodulated signals and restoring the demodulated signals into digital signals. The communication system and communication method for the human body communication include that using a first transceiver structure and a second transceiver structure to simultaneously send signals to each other and receive signals from each other. The transceiver structure, communication system and method for the human body communication use signals with different frequencies to simultaneously receive and transmit data so as to avoid the interference between signals. The transceiver structure, communication system and method for the human body communication can play roles of detecting errors and re-transmitting to improve the data transmission precision.

Description

technical field [0001] The invention relates to the technical field of human body communication, in particular to a transceiver structure, communication system and solution for human body communication. Background technique [0002] Human body communication technology is a technology that uses the human body as a communication transmission medium to communicate at the proximal end of the human body. It can transmit data through capacitive coupling or current coupling. Compared with traditional wireless communication technology, human body communication technology has the advantages of small signal radiation, harmless to human body, low power consumption, high speed, high security, etc. It is an ideal wearable communication for accessing the "last meter" of the Internet of Things The technology has a wide range of application scenarios. [0003] In the human body communication technology, the human body communication transceiver is the key core of the technology. With the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/3827H04B1/40
Inventor 李景振聂泽东段长江刘宇航贾利亚刘洋阮忠周黄仁伟王珍陈泽王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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