Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Subway train-ground wireless transmission system

A technology of wireless transmission and subway car, applied in the field of wireless transmission, can solve the problems of low reliability, high manufacturing cost, lowering the manufacturing cost of subway car-ground wireless transmission system, etc., and achieve the effect of reducing manufacturing cost

Inactive Publication Date: 2011-04-06
QINGDAO EASYTOUSE ELECTRONICS +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a subway car-ground wireless transmission system, which is used to solve the defects of high manufacturing cost and low reliability of the subway car-ground wireless transmission system in the prior art, and realize the reduction of the manufacturing cost of the subway car-ground wireless transmission system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Subway train-ground wireless transmission system
  • Subway train-ground wireless transmission system
  • Subway train-ground wireless transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] 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.

[0015] figure 1 It is a structural schematic diagram of an embodiment of the subway car-ground wireless transmission system of the present invention, figure 2 It is a schematic structural diagram of the first wireless transmitting and receiving device in the embodiment of the subway car-ground wireless transmission system of the present inventio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a subway train-ground wireless transmission system which comprises a control center, a first wireless transreceiver and a second wireless transreceiver, wherein the first wireless transreceiver is arranged in a station and based on a coding orthogonal frequency-division multiplexing transmission technique; the second wireless transreceiver is arranged in a train and based on the coding orthogonal frequency-division multiplexing transmission technique; the first wireless transreceiver comprises a first base station receiver and a base station transmitter, the first base station receiver is used for receiving signals at a first frequency, and the base station transmitter is used for transmitting the signals at a second frequency; the second wireless transreceiver comprises a first train transmitter and a train receiver, the first train transmitter is used for transmitting the signals at the first frequency, and the train receiver is used for receiving the signals at the second frequency; and the first wireless transreceiver is connected with the control center through a local area network, and communicates with the second wireless transreceiver. Without the arrangement of a plurality of wireless routers, the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to the technical field of wireless transmission, in particular to a subway car-ground wireless transmission system. Background technique [0002] At present, taking the subway is a very convenient way of travel in people's daily life. The subway is usually installed underground, so it can effectively avoid traffic jams. The wireless transmission system used for communication transmission between subway trains and stations in subway tunnels of the prior art is usually realized by using a wireless local area network based on the IEEE802.11 standard. The wireless transmission system specifically includes the following devices: control center, multiple wireless routers, and wireless transmitting and receiving device. Wireless routers are installed every 200-300 meters in the subway tunnel, and all wireless routers are connected to the control center through a LAN; Realize information exchange with the control center, so that the ope...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/00H04B1/40H04L5/02
Inventor 李廷勇
Owner QINGDAO EASYTOUSE ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com