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Electric energy and signal parallel wireless transmission system based on multi-modulation-wave composite SPWM control

A wireless transmission and modulated wave technology, applied in transmission systems, electrical components, circuit devices, etc., can solve problems such as slow transmission rates, and achieve the effect of increasing data volume, avoiding cross-coupling, improving efficiency and application flexibility

Active Publication Date: 2020-11-06
CHINA UNIV OF MINING & TECH
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  • Abstract
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Problems solved by technology

The existing single-coil shared channel transmission technology generally has the problem of slow transmission rate

Method used

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  • Electric energy and signal parallel wireless transmission system based on multi-modulation-wave composite SPWM control
  • Electric energy and signal parallel wireless transmission system based on multi-modulation-wave composite SPWM control
  • Electric energy and signal parallel wireless transmission system based on multi-modulation-wave composite SPWM control

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Embodiment 1

[0041] In order to better describe a multi-compound SPWM modulation wave power control signals in parallel with the wireless transmission system and a control method, three signals selected transmission channels, in parallel with the power transmission rate of 50kbit / s (transmission period T s = 20us) as an example of a serial binary bits into the analysis, the power requirements of the design specification parameters conditions 3, choose energy modulation wave frequency f 0 = 200kHz, 1-channel signal corresponding to the modulated wave characteristic frequency f 1 2 corresponds to the modulated wave characteristic = 600kHz, the channel signal frequency f 2 = 1000kHz, 3-modulated wave corresponding to the frequency channel characteristics of the signal f 3 = 1400kHz.

[0042] Step a: Design System Structure:

[0043] A multi-wave power and the modulation signal SPWM control complex parallel wireless transmission system includes an AC power source, rectifying and smoothing circui...

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Abstract

The invention provides an electric energy and signal parallel wireless transmission system based on multi-modulation-wave composite SPWM control. The electric energy and signal parallel wireless transmission system comprises a primary circuit and a secondary circuit. In the primary circuit, high-speed serial bits form n paths of parallel binary sequences through an encoder, the n paths of parallelbinary sequences are sent to a multi-modulation-wave composite SPWM control circuit to be subjected to amplitude modulation, then composite pulse waves are output based on SPWM control, and a composite high-frequency current is generated in a primary coil in a magnetic coupling coil. In the secondary circuit, a secondary coil and a secondary electric energy compensation capacitor form an electricenergy transmission channel, electric energy modulation wave frequency components in the composite high-frequency current are separated to supply power to a load resistor, a signal separation channelnetwork separates n paths of signal modulation wave components with different frequencies, and a signal demodulation circuit network demodulates signals and then sends the signals to a decoder to recover high-speed serial bits. According to the invention, no cross coupling interference and stable parallel synchronous transmission of electric energy and multiple paths of signals are realized, andthe signal transmission rate is effectively improved while the stability of the electric energy is ensured.

Description

Technical field [0001] The present invention provides a composite multi-modulation wave signal SPWM parallel with the power control wireless transmission system, wireless power transmission belonging to the technical field. Background technique [0002] With the increasingly widespread use of intelligent electronic products, wireless power transmission technology more and more attention has been paid. In many cases, the system on the basis of the power transmission, still need to provide additional wireless communications capabilities, such as underwater exploration wireless, body built equipment. The radio signal synchronous parallel transmission is becoming an important issue to adapt to future development needs. [0003] Wireless power transmission technology (Wireless Power Transfer, referred to as WPT) was first born in the nineteenth century America. It is a space-soft intangible media (e.g., magnetic, electric, laser, microwave, etc.), to achieve a new access mode power tr...

Claims

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Application Information

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IPC IPC(8): H04B14/02H04B14/04H02J50/80H02J50/20H02J50/12
CPCH04B14/023H04B14/026H04B14/042H02J50/12H02J50/20H02J50/80
Inventor 夏晨阳张宏泰魏楠吴镇贾仁海廖志娟刘旭伍小杰
Owner CHINA UNIV OF MINING & TECH
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