CN105487057A - Vehicle-mounted Doppler radar positioning system error identification device - Google Patents
Vehicle-mounted Doppler radar positioning system error identification device Download PDFInfo
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- CN105487057A CN105487057A CN201510975648.5A CN201510975648A CN105487057A CN 105487057 A CN105487057 A CN 105487057A CN 201510975648 A CN201510975648 A CN 201510975648A CN 105487057 A CN105487057 A CN 105487057A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
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Abstract
The invention relates to a vehicle-mounted Doppler radar positioning system error identification device. The invention provides a data complete control device which is interlocked with an electric lock, comprising a vehicle-mounted Doppler radar positioning system, a block nodes, and an error tolerance node; an expansion train control center performs expansion on the vehicle-mounted Doppler radar positioning system by using cross validation; the correlation relations are established on the nodes on the data transmission link between the error tolerance node and the train control center; and the error tolerance node verifies the data packet to be transmitted in an alternative hop-by-hop mode. The vehicle-mounted Doppler radar positioning system error identification device improves the reliability of the railway communication, and effectively guarantees the safety of the train operation.
Description
Technical field
The present invention relates to railway communication field, particularly relate to a kind of railway information and collect and the field communicated.
Background technology
Move ahead the position of train and following train, speed is the parameter calculating train maximum permission speed. for high density, the train that high speed is run, train position, the mensuration of speed must be very accurate, particularly all breakneck when train is strayed into home signal at a few error of meter of home signal cause. comparatively common are to utilize and according to Doppler's principle, train is tested the speed, along the line, radar Doppler is installed, when there being car occupied block, radar antenna launches uhf electromagnetic wave to moving vehicle, electromagnetic wave through car body reflection is received by the same antenna, difference frequency between the reflection electromagnetic wave taking out emitting electromagnetic wave and reception through frequency mixer, be directly proportional to train running speed according to this difference frequency of Doppler's principle. this difference frequency is sent to station master-control room, make analog or digital by master scheduling computing machine to difference frequency to measure, and according to the numbering of radar antenna, draw train speed, positional information. according to Doppler's principle, train is tested the speed, along the line, radar Doppler is installed, when there being car occupied block, radar antenna launches uhf electromagnetic wave to moving vehicle, electromagnetic wave through car body reflection is received by the same antenna, difference frequency between the reflection electromagnetic wave taking out emitting electromagnetic wave and reception through frequency mixer, be directly proportional to train running speed according to this difference frequency of Doppler's principle. this difference frequency is sent to station master-control room, make analog or digital by master scheduling computing machine to difference frequency to measure, and according to the numbering of radar antenna, draw train speed, but positional information. easily there is error and data interference in this positioning system, easy generation data noise, how to solve this error problem, the a great problem of pendulum in railway communication field.。
According to above problem, the present invention is compared to traditional approach in the past, and error identification is more accurate, generates with consumption of natural resource when calling less, start and the response time almost nil, therefore, the present invention has more advantage in error identification.
Summary of the invention
The technical problem to be solved in the present invention is: under bullet train runs.The error identification accuracy that more complicated teleseme and even more equipment communicate with train control center.
The invention provides following technical scheme: vehicle-mounted radar Doppler Positioning System Error recognition device, comprise vehicle-mounted radar Doppler positioning system, block node, fault tolerant node, utilize the mode of validation-cross to expand train control center to expand vehicle-mounted radar Doppler positioning system, be associated between each node on the data transfer links of fault tolerant node to train control center relation, and all fault tolerant nodes verify its packet that will transmit in a kind of staggered hop-by-hop mode; When only having X+1, (X is the error upper limit of setting, get the included vehicle-mounted radar Doppler positioning system nodes in block node) individual node is all by fault-tolerant certification, packet is passed to train control center, therefore, as long as the nodes of error is less than or equal to X, train control center or just can not detected by fault tolerant node and abandon desired data bag; Even if fault tolerant node is that when ensureing respective nodes or the link failure of part location, train control center still can obtain the effective means of partial data; But, direct transmission raw data then seriously can increase error identification location amount, cause the energy resource consumption of a large amount of inaction, fault tolerant node also will position fusion to block node, from but eliminate error identification data unnecessary, reduce Internet traffic, if block node receives the data that each vehicle-mounted radar Doppler positioning system node transmits in block, then after eliminating unnecessary error identification location amount, locator data is uploaded train control center by Content inspection.
Accompanying drawing explanation
Fig. 1 is system assumption diagram of the present invention;
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention will be described in detail.It should be noted that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention, the product that can realize said function belongs to equivalent to be replaced and improves, and is all included within protection scope of the present invention.Concrete grammar is as follows:
Embodiment 1: as shown in Figure 1: relate to the power consumption issues of vehicle-mounted radar Doppler positioning system every aspect to closing vehicle-mounted radar Doppler positioning system life cycle.Say from operational process, the energy ezpenditure of vehicle-mounted radar Doppler positioning system node subsystems influences each other again, shifting, and the error identification control strategy for vehicle-mounted radar Doppler positioning system system can not tackle the problem at its root.
Therefore must in conjunction with the applied environment of network, select from device, functional characteristics and performance requirement that each vehicle-mounted radar Doppler positioning-system subsystem is taken into account in the aspect such as the validity of data processing algorithm and complicacy, data traffic and network operation mechanism, assessment errors identification problem on the whole, even suitably reduce performance standard if desired, to design corresponding error identification control strategy, effectively extend network lifecycle.Generally, error identification control strategy should enter principle from the power consumption singularity of error identification itself, dormancy emphatically, shorten these aspects of communication distance and carry out tolerance design.This kind of mode is only reduction of the error in data routing process, does not affect the node error problem of data transmission.Substitute Errors Catastrophic by a small amount of error identification to know method for distinguishing and further reduce the traffic in error identification.
Vehicle-mounted radar Doppler Positioning System Error recognition device, comprise vehicle-mounted radar Doppler positioning system, block node, fault tolerant node, utilize the mode of validation-cross to expand train control center to expand vehicle-mounted radar Doppler positioning system, be associated between each node on the data transfer links of fault tolerant node to train control center relation, and all fault tolerant nodes verify its packet that will transmit in a kind of staggered hop-by-hop mode; When only having X+1, (X is the error upper limit of setting, get the included vehicle-mounted radar Doppler positioning system nodes in block node) individual node is all by fault-tolerant certification, packet is passed to train control center, therefore, as long as the nodes of error is less than or equal to X, train control center or just can not detected by fault tolerant node and abandon desired data bag; Even if fault tolerant node is that when ensureing respective nodes or the link failure of part location, train control center still can obtain the effective means of partial data;
Adjusted the operation of train according to train self and the train operation state that moves ahead by this vehicle-mounted radar Doppler Positioning System Error identification dress Master Control Center, ground signal can be cancelled, track circuit, fixed partition, adapt to mixed fortune type section, improving the handling capacity of circuit. system is adaptable, the raising of corresponding train running speed, system only need do the adjustment on software parameter, as: change the time interval that Master Control Center sends control command and Query Information, bi-directional information channel between car ground is utilized to realize the closed-loop control to train, thus greatly reduce the impact of mistake, realize the object of safe driving.
But, direct transmission raw data then seriously can increase error identification location amount, cause the energy resource consumption of a large amount of inaction, fault tolerant node also will position fusion to block node, from but eliminate error identification data unnecessary, reduce Internet traffic, if block node receives the data that each vehicle-mounted radar Doppler positioning system node transmits in block, then after eliminating unnecessary error identification location amount, locator data is uploaded train control center by Content inspection.
Design advantage of the present invention mainly contains: communicate with the state of various equipment with bursty state and according to the state of train according to actual operation, thus improves the reliability of driving.
Claims (1)
1. a vehicle-mounted radar Doppler Positioning System Error recognition device, is characterized in that:
Comprise vehicle-mounted radar Doppler positioning system, block node, fault tolerant node, utilize the mode of validation-cross to expand train control center to expand described vehicle-mounted radar Doppler positioning system, be associated relation between described fault tolerant node to each node on the data transfer links of train control center, and all described fault tolerant nodes verify its packet that will transmit in a kind of staggered hop-by-hop mode; When only having X+1, (X is the error upper limit of setting, get the included described vehicle-mounted radar Doppler positioning system nodes in described piece of node) individual node is all by fault-tolerant certification, packet is passed to train control center, therefore, as long as the nodes of error is less than or equal to X, train control center or just can not detected by fault tolerant node and abandon desired data bag; Even if described fault tolerant node is that when ensureing respective nodes or the link failure of part location, train control center still can obtain the effective means of partial data; But, direct transmission raw data then seriously can increase error identification location amount, cause the energy resource consumption of a large amount of inaction, described fault tolerant node also will position fusion to described piece of node, from but eliminate error identification data unnecessary, reduce Internet traffic, if described piece of node receives the data that in block, each described vehicle-mounted radar Doppler positioning system node transmits, then after eliminating unnecessary error identification location amount, locator data is uploaded train control center by Content inspection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975648.5A CN105487057A (en) | 2015-12-21 | 2015-12-21 | Vehicle-mounted Doppler radar positioning system error identification device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510975648.5A CN105487057A (en) | 2015-12-21 | 2015-12-21 | Vehicle-mounted Doppler radar positioning system error identification device |
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| CN105487057A true CN105487057A (en) | 2016-04-13 |
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| CN201510975648.5A Pending CN105487057A (en) | 2015-12-21 | 2015-12-21 | Vehicle-mounted Doppler radar positioning system error identification device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859075A (en) * | 2005-11-16 | 2006-11-08 | 华为技术有限公司 | Method for detecting link disturbing code configuration conformance |
| CN101521557A (en) * | 2008-02-29 | 2009-09-02 | 华为技术有限公司 | Method and system for error control and congestion control |
| CN102890451A (en) * | 2012-09-29 | 2013-01-23 | 浙江大学 | Semi-physical simulation platform for vehicle-mounted controller test |
| US20150026527A1 (en) * | 2012-04-11 | 2015-01-22 | Huawei Technologies Co., Ltd. | Data Transmission Method, Device and System |
| CN104554346A (en) * | 2014-11-21 | 2015-04-29 | 北京交控科技有限公司 | Train operation parameter real-time monitoring system |
-
2015
- 2015-12-21 CN CN201510975648.5A patent/CN105487057A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859075A (en) * | 2005-11-16 | 2006-11-08 | 华为技术有限公司 | Method for detecting link disturbing code configuration conformance |
| CN101521557A (en) * | 2008-02-29 | 2009-09-02 | 华为技术有限公司 | Method and system for error control and congestion control |
| US20150026527A1 (en) * | 2012-04-11 | 2015-01-22 | Huawei Technologies Co., Ltd. | Data Transmission Method, Device and System |
| CN102890451A (en) * | 2012-09-29 | 2013-01-23 | 浙江大学 | Semi-physical simulation platform for vehicle-mounted controller test |
| CN104554346A (en) * | 2014-11-21 | 2015-04-29 | 北京交控科技有限公司 | Train operation parameter real-time monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 刘纪红 等: "《物联网技术及应用》", 31 December 2011 * |
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Application publication date: 20160413 |