Optical wireless fusion method and system for high-speed flying train in vacuum pipeline
A technology of vacuum pipeline and fusion method, which is applied in fiber optic radio, transmission system, electromagnetic wave transmission system, etc., and can solve the problems of low delay, frequent handover, Doppler effect, etc.
Pending Publication Date: 2021-09-03
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0004] In order to solve the problems of extremely frequent handover and serious Doppler effect in the vehicle-to-ground communication of the high-speed flying train in the vacuum tube, realize the high-speed, low-latency, and uninterrupted data transmission of the high-speed flying train in the vacuum tube
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation methods.
[0026] A kind of optical wireless fusion method of vacuum pipeline high-speed flying train of the present invention is as follows: figure 1 shown, including the following steps:
[0027] S101: Obtain data service information through a terrestrial access network. Data service information includes safety services and non-safety services, among which safety services include train control feedback, train operation status, operation voice communication, train safety monitoring and other services, and non-safety services include voice data, high-definition video, online office, Internet, cloud data and other services.
[0028] S102: Perform optical / radio frequency wireless fusion optimization according to business information, establish optimization goals according to system channel conditions and business requirements (system ...
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The invention discloses an optical wireless fusion method and system for a high-speed flying train in a vacuum pipeline. The method comprises the following steps: acquiring data service information; performing optical / radio frequency wireless fusion optimization according to the service information; and reasonably performing service scheduling and resource allocation through an adaptive algorithm according to an optimization result. The system comprises a data service acquisition module used for acquiring security service and non-security service information; an optical wireless fusion module which is used for carrying out optical / radio frequency wireless fusion optimization according to the service information and acquiring service, scheduling and resource allocation information; an optical wireless module which is used for transmitting information through a LiFi system; and a radio frequency wireless module which is used for transmitting information through a radio frequency system. According to the invention, the problems of absolutely frequent handover, serious Doppler effect and the like in the train-ground communication of the vacuum pipeline high-speed flying train can be solved, and the train-ground optical wireless converged communication system of the vacuum pipeline high-speed flying train is safe, high in reliability, high in speed, low in time delay, free of interruption and free of switching.
Description
technical field [0001] The invention belongs to the fields of high-speed train vehicle-ground communication and wireless optical communication, and in particular relates to a method and system for optical and wireless fusion of high-speed flying trains in vacuum tubes. Background technique [0002] As the next generation of high-speed rail transit technology, the vacuum tube high-speed flying train lays a closed tube on the ground or underground, and makes the inside of the tube reach a low-pressure environment close to vacuum by extracting air, so that the maglev train can travel in the vacuum tube with low mechanical friction, low aerodynamic resistance, The low-noise mode operates all-weather at ultra-high speed (more than 1000km / h). The safe and efficient operation and business scheduling of high-speed flying trains in vacuum tubes cannot be separated from the support of wireless communication technology. However, traditional broadband wireless communication technologies...
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IPC IPC(8): H04B10/2575
CPCH04B10/2575H04B10/25753
Inventor 邓雄邹喜华叶佳闫连山潘炜
Owner SOUTHWEST JIAOTONG UNIV