CN202783263U - Train-ground wireless communication system - Google Patents
Train-ground wireless communication system Download PDFInfo
- Publication number
- CN202783263U CN202783263U CN 201220500948 CN201220500948U CN202783263U CN 202783263 U CN202783263 U CN 202783263U CN 201220500948 CN201220500948 CN 201220500948 CN 201220500948 U CN201220500948 U CN 201220500948U CN 202783263 U CN202783263 U CN 202783263U
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- train
- wireless
- frequency spectrum
- trackside
- wireless communication
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Abstract
The utility model discloses a train-ground wireless communication system. The train-ground wireless communication system comprises a train-mounted unit, a data communication unit and a trackside train automatic control system. The train-mounted unit comprises a vehicular train automatic control system and a positioning system. The data communication unit comprises a wireless network and a trackside network device. The wireless network comprises an input end, an output end, and a channel recognizer. An automatic train supervision system is connected between the wireless networks and the trackside network device. The trackside train automatic control system is in wireless connection with the train-mounted unit through the data communication unit. The train-ground wireless communication system is characterized in that the wireless network comprises a repeat accumulate code arithmetic device and a wireless perceptron, the repeat accumulate code arithmetic device is installed at the output end of the wireless networks, and the wireless perceptron is installed in the channel recognizer of the wireless networks.
Description
Technical field
The utility model relates to a kind of wireless communication system, especially a kind of vehicle-ground wireless communication system.
Background technology
Train control system has experienced the change from unidirectional track circuit to two-way wireless communication in the evolution of subway signal.What be widely used at present the subway train control system is to based on radio CBTC system (CBTC).Subway CBTC wireless communication system comprises that mainly mobile unit and trackside equipment form.Safe and reliable vehicle-ground wireless communication is the basis that subway CBTC system realizes the Train Control function.Track traffic adopts the WLAN wireless local area network technology of IEEE 802.11g standard to realize car-ground radio data communication.This passage is used for transmitting the various data messages between CBTC system ground and the train.
The jamproof mode of CBTC Radio Communication is to realize by different communications bands is set at present.But owing to also exist a large amount of other to use same wireless communication standard in the subway field again, and such as the PIS(passenger guidance system), also have in addition the civil equipment of using in a large number WIFI; Therefore so under the complex environment disturbed situation appearance often can appear.Owing in the wireless communication data of CBTC system a large amount of secure datas are arranged, in order to guarantee the security of system reliability service, need to introduce the disturbance rejection unit.
And no matter based on WLAN or the communication of private wireless network, all have same frequency or face the problem of frequently disturbing.For this reason, how to introduce technological means, improve the antijamming capability of CBTC system, guarantee that it is reliable, smooth operation is very important.
Summary of the invention
In order to solve problems of the prior art, the purpose of this utility model provides a kind of anti-interference resistance that can improve system, the vehicle-ground wireless communication system that availability and reliability are higher.
In order to achieve the above object, the utility model is taked following technical scheme:
A kind of vehicle-ground wireless communication system, comprise board units, data communication units and trackside train automatic controlling system, described board units comprises vehicle-mounted train automatic controlling system and position fixing system, described data communication units comprises wireless transmitting system and trackside network equipment, described wireless transmitting system comprises input end, mouth and channel identification device, be connected with automatic train monitor between described wireless transmitting system and the trackside network equipment, described trackside train automatic controlling system and board units are by the data communication units wireless connections, it is characterized in that described wireless transmitting system comprises repetition accumulated codes arithmetic and logic unit and radio-aware device, described repetition accumulated codes arithmetic and logic unit is installed on the mouth of wireless transmitting system, and described wireless sensor is installed on the channel identification device of wireless transmitting system; Described repetition accumulated codes arithmetic and logic unit is to be formed by repetition coder, interleaver and accumulator/accum serially concatenated; Described wireless sensor comprises frequency spectrum perception unit, spectral analysis unit, frequency spectrum determining means, information in the described frequency spectrum perception unit reception radio environment and difference output spectrum cavity information are to frequency spectrum determining means and spectral analysis unit, information in the described spectral analysis unit reception radio environment and output channel capacity feed back to radio environment with information to the frequency spectrum determining means after described frequency spectrum determining means received spectrum cavity information and the channel capacity.
Description of drawings
Fig. 1 is the structural representation of a kind of vehicle-ground wireless communication of the utility model system.
Fig. 2 is the structural representation that repeats the accumulated codes arithmetic and logic unit in a kind of vehicle-ground wireless communication of the utility model system.
Fig. 3 is the structural representation of radio-aware device in a kind of vehicle-ground wireless communication of the utility model system.
The specific embodiment
Below the utility model is described in further detail in conjunction with the specific embodiment with reference to the accompanying drawings.
As shown in Figure 1, a kind of vehicle-ground wireless communication system, comprise board units, data communication units and trackside train automatic controlling system (ATC), described board units comprises vehicle-mounted train automatic controlling system (ATC) and position fixing system, described data communication units comprises wireless transmitting system and trackside network equipment, described wireless transmitting system comprises input end, mouth and channel identification device, be connected with automatic train monitor (ATS) between described wireless transmitting system and the trackside network equipment, described trackside train automatic controlling system and board units are by the data communication units wireless connections, it is characterized in that described wireless transmitting system comprises repetition accumulated codes arithmetic and logic unit and radio-aware device, described repetition accumulated codes arithmetic and logic unit is installed on the mouth of wireless transmitting system, and described wireless sensor is installed on the channel identification device of wireless transmitting system; As shown in Figure 2, described repetition accumulated codes arithmetic and logic unit is to be formed by repetition coder, interleaver and accumulator/accum serially concatenated; As shown in Figure 3, described wireless sensor comprises frequency spectrum perception unit, spectral analysis unit, frequency spectrum determining means, information in the described frequency spectrum perception unit reception radio environment and difference output spectrum cavity information are to frequency spectrum determining means and spectral analysis unit, information in the described spectral analysis unit reception radio environment and output channel capacity feed back to radio environment with information to the frequency spectrum determining means after described frequency spectrum determining means received spectrum cavity information and the channel capacity.
Claims (3)
1. vehicle-ground wireless communication system, comprise board units, data communication units and trackside train automatic controlling system, described board units comprises vehicle-mounted train automatic controlling system and position fixing system, described data communication units comprises wireless transmitting system and trackside network equipment, described wireless transmitting system comprises input end, mouth and channel identification device, be connected with automatic train monitor between described wireless transmitting system and the trackside network equipment, described trackside train automatic controlling system and board units are by the data communication units wireless connections, it is characterized in that described wireless transmitting system comprises repetition accumulated codes arithmetic and logic unit and radio-aware device, described repetition accumulated codes arithmetic and logic unit is installed on the mouth of wireless transmitting system, and described wireless sensor is installed on the channel identification device of wireless transmitting system.
2. a kind of vehicle-ground wireless communication according to claim 1 system is characterized in that described repetition accumulated codes arithmetic and logic unit is to be formed by repetition coder, interleaver and accumulator/accum serially concatenated.
3. a kind of vehicle-ground wireless communication according to claim 1 system, it is characterized in that described wireless sensor comprises frequency spectrum perception unit, spectral analysis unit, frequency spectrum determining means, information in the described frequency spectrum perception unit reception radio environment and difference output spectrum cavity information are to frequency spectrum determining means and spectral analysis unit, information in the described spectral analysis unit reception radio environment and output channel capacity feed back to radio environment with information to the frequency spectrum determining means after described frequency spectrum determining means received spectrum cavity information and the channel capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500948 CN202783263U (en) | 2012-09-27 | 2012-09-27 | Train-ground wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500948 CN202783263U (en) | 2012-09-27 | 2012-09-27 | Train-ground wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202783263U true CN202783263U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220500948 Expired - Lifetime CN202783263U (en) | 2012-09-27 | 2012-09-27 | Train-ground wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202783263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099850A (en) * | 2015-09-17 | 2015-11-25 | 宁波大学 | Intelligent internet of vehicle and things monitoring system based on frequency spectrum sensing and monitoring method thereof |
| CN116022201A (en) * | 2023-03-27 | 2023-04-28 | 中铁第四勘察设计院集团有限公司 | Train control wireless communication system and method using PIS channel as redundancy |
-
2012
- 2012-09-27 CN CN 201220500948 patent/CN202783263U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099850A (en) * | 2015-09-17 | 2015-11-25 | 宁波大学 | Intelligent internet of vehicle and things monitoring system based on frequency spectrum sensing and monitoring method thereof |
| CN105099850B (en) * | 2015-09-17 | 2018-06-12 | 宁波大学 | Intelligent vehicle connection network monitoring system for things and monitoring method based on frequency spectrum perception |
| CN116022201A (en) * | 2023-03-27 | 2023-04-28 | 中铁第四勘察设计院集团有限公司 | Train control wireless communication system and method using PIS channel as redundancy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |