A wireless body area network communication system
A wireless body area network and communication system technology, applied in the field of wireless body area network communication systems, can solve problems such as inability to compensate for reverse path loss and inability to maintain low power consumption, and achieve the effect of reducing power consumption
Active Publication Date: 2021-07-20
TSINGHUA UNIV
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Problems solved by technology
However, the reverse path loss changes with the change of human body posture. The existing technology cannot effectively compensate the reverse path loss during the dynamic change of human body posture. Therefore, the low power consumption of the system cannot be maintained.
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[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] image 3 A schematic structural diagram of a wireless body area network communication system provided by an embodiment of the present invention, as shown in image 3 As shown, the system includes: a transmitting end 31 and a receiving end 32; wherein, the receiving end 32 includes:
[0024] Load resistance 321, digitally controlled induct...
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An embodiment of the present invention provides a wireless body area network communication system. The system includes: a transmitter and a receiver; the receiver includes: a load resistor, a numerically controlled inductance array and a compensation inductance calculator; the load resistor and a numerically controlled inductance array are serially connected between the signal electrode and the ground electrode, and the compensation inductance calculator and the load The resistance and the digitally controlled inductance array are connected in parallel; the load resistance is used to generate a voltage signal according to the excitation signal emitted by the transmitter; the compensation inductance value calculator is used to calculate the compensated inductance value according to the voltage signal; For the inductance value, several inductances are determined from the multiple inductances of the numerically controlled inductance array as compensation inductances, and the reverse path loss in the wireless body area network communication system is compensated through the compensation inductances. The system provided by the embodiment of the present invention can dynamically and effectively compensate the reverse path loss in the system during the change of human body posture, so that the power consumption of the system is greatly reduced.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of wireless body area network, and in particular to a wireless body area network communication system. Background technique [0002] Wireless body area networks (WBAN) refer to information networks established between electronic devices carried by individuals. In order to promote the development of wireless body area network, the wireless body area network standard IEEE802.15.6 was formally established in 2012. The standard stipulates three types of signal frequency bands for wireless body area network communication: narrowband (narrowband, NB), ultra wideband (ultra wideband, UWB) and human body communication (human body communication, HBC) frequency bands. Among them, both narrowband and ultra-wideband are radio frequency communication methods, while human body communication regards the human body as a conductor and uses the human body as a channel to complete signal transmission, wh...
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IPC IPC(8): H04B5/00H04B13/00
CPCH04B13/005H04B5/24
Inventor 赵健杨华中刘勇攀
Owner TSINGHUA UNIV