CN100497036C - Speed-measuring positioner of magnetic suspension vehicle - Google Patents
Speed-measuring positioner of magnetic suspension vehicle Download PDFInfo
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- CN100497036C CN100497036C CN 200410024657 CN200410024657A CN100497036C CN 100497036 C CN100497036 C CN 100497036C CN 200410024657 CN200410024657 CN 200410024657 CN 200410024657 A CN200410024657 A CN 200410024657A CN 100497036 C CN100497036 C CN 100497036C
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Abstract
A speed-measuring and locating system for the magnetic levitation train is composed of more than one light emitter installed on train, a light receiver installed on train for receiving light signal and generating pulse signal, the opaque marker plates installed on lateral surface of rail between light emitter and light receiver and with regularly arranged mark holes, and signal processing circuit on the train for finding out the data about speed and position.
Description
Technical field:
The present invention relates to the device of a kind of speed and Position automatic detection, especially a kind of magnetic floats automobile-used registration device.
Background technology:
The floating automobile-used registration device of existing magnetic mainly adopts the method for loop line or leakage coaxial cable.It is the variation that utilizes the magnetic direction (or amplitude) that loop line that ground lays or leakage coaxial cable energising back produce, pulse induced electricity in the vehicle-mounted receiving coil of operation, the accurate location of realizing the floating car of magnetic through Signal Processing.
In the floating car of the domestic first platform magnetic of Southwest Jiaotong University's development, also adopted a kind of method for locating speed measurement based on the counting sleeper.It obtains the present speed that magnetic floats car by measuring the floating car of magnetic by the time of the sleeper of known distance, realizes train positioning by the sleeper number that counting passes through.
Prior art also is used for other modes that need adopt Contactless Measurement system of location that realizes testing the speed except that being used for the floating car of magnetic.Have product to sell at present, its main deficiency is to lay cross-inductive loop line or leakage coaxial cable on ground, and will be at the floor mounted signal source.This magnetic that is not suitable for long distance floats the requirement of the location of car.And the method for locating speed measurement error of counting sleeper is excessive, can not satisfy the requirement of the floating car control of magnetic.
Summary of the invention:
The related registration device that tests the speed of method for locating speed measurement at the floating car of present magnetic will lay cross-inductive loop line or leakage coaxial cable on ground, and will be at the floor mounted signal source, not high for the track circuit expense costliness of long distance and precision and reliability, and the method for locating speed measurement error of counting sleeper is excessive, can not satisfy accurately the test the speed requirement of location of the floating car of magnetic, the object of the present invention is to provide a kind of simple in structure utilize the photoimpact counting and its data handled carry out the test the speed device of location of the floating car of magnetic.
Comprise according to the floating automobile-used registration device that tests the speed of a kind of magnetic of goal of the invention of the present invention: vehicle-mounted optical transmitting set more than; Mounted in a vehicle and the corresponding optical receiver in optical transmitting set position, this optical receiver are subjected to illumination to penetrate the back and produce electric impulse signal; Be installed in the opaque identification plate of rail side, this identification plate is provided with certain regularly arranged control hole, and the position of identification plate is between optical transmitting set and the optical receiver; The signal processing circuit that links to each other with optical receiver onboard is installed, and the time also can handle the electric pulse that optical receiver produces according to predefined formula between this signal processing circuit calculating pulse, obtains the velocity location data.
Magnetic floats the registration device that tests the speed of car at present, the test the speed advantage of registration device of the floating car of magnetic of the present invention is conspicuous: it is simple in structure, except that the tick lables plate was placed on the car lower railway, all the other were all laid onboard, thereby had improved reliability and reduced cost.The floating car of the magnetic of the present invention registration device that tests the speed adopts photoelectric technology to make it have higher survey precision.
Description of drawings:
Fig. 1 is the scheme of installation of registration device on the floating car of magnetic that test the speed of the present invention.
Fig. 2 is the test the speed scheme drawing of positioning principle of the present invention.
Fig. 3 is the scheme drawing of the identification plate in the registration device that tests the speed of the present invention.
The specific embodiment:
Please refer to Fig. 1, this is a floating automobile-used registration device embodiment that tests the speed of the magnetic according to goal of the invention of the present invention.Suspension car body 4 belows are loaded with 1, one group of optical transmitting set 6 of levitating electromagnet and are installed on the car body 4; Also be contained on the car body 4 with the corresponding optical receiver 8 in optical transmitting set 6 positions, this group optical transmitting set 6 and cooresponding optical receiver 8 are formed probe 7; Opaque identification plate 5 is installed in long stator 23 sides that get on the right track, and this identification plate 5 is provided with certain regularly arranged control hole 9, and the position of identification plate 5 is between optical transmitting set 6 and the optical receiver 8; The signal processing circuit (not illustrating in the drawings) that links to each other with optical receiver 8 onboard is installed.
With reference to Fig. 2, when train operation, when the light pulse of emission was stopped by identification plate 5 atresia positions, the signal of receiving on optical receiver 8 was zero; When the light pulse of emission is radiated on the optical receiver 8 through the hole 9 on the identification plate, produce electric pulse on the optical receiver 8.By handle, the counting electric pulse, thereby the location that can realize the floating car of magnetic with test the speed, Here it is levitated vehicle of the present invention is with the principle of work of the registration device that tests the speed.
If it is S that the width between centers of control hole 9 is put at the two-phase ortho position of identification plate 5 equal intervals, it is a known quantity; 7 required times of this segment distance of S of passing by of probe are T (this amount that need detect are measured by signal processing circuit in the present embodiment), then the speed V of the floating car of magnetic:
V＝S/T
The range ability D of the floating car of magnetic:
D＝SN
N is the count value in identification plate equal intervals tick lables hole 9 in the formula.
Adopt the strong light source of penetrance, as the laser in the present embodiment, and send with reception not far from one anotherly, add the special mounting mode of identification plate 5, sleet dust can not influence the normal operation of testing circuit.Measure the cumulative errors of bringing for eliminating, one embodiment of the present of invention have adopted the location, absolute location to realize high-precision location with the method that the relative position location combines.Promptly every just 5 notches 9 of setting up a string sign absolute distance value on identification plate of a fixing known distance.Read this coded message and just can eliminate the error that relative position control hole 91 countings bring, realize accurately location.
The structure of tick lables plate 5 such as Fig. 3, it is to be placed in the fixed opaque thin slice in track 3 limits.Material there is not specific (special) requirements.A last row of identification plate 5 just just opens a sector hole at the certain position (as every 200m) of circuit for absolute location control hole 92; Next row of identification plate is relative position control hole 91, equidistant perforate on whole circuit.Count by the time of relative position control hole 91 spacings and to the number in hole by detecting train, can obtain the relative position and the speed of train; And absolute fix is the variation that relies on absolute location control hole 92 spacings, and carries out Code And Decode as a reference with the pitch of holes of relative position control hole 91.Certainly in some other embodiment of the present invention, also can only adopt row's relative position control hole 91 or only adopt a row absolute location control hole 92, can also adopt and arrange absolute/relative position control holes more, also can adopt arrange definitely/relative position control hole to come together more.
The time also can handle the electric pulse that optical receiver produces according to predefined formula between the signal processing circuit calculating pulse, obtains the velocity location data.For the present embodiment, Yu She formula is exactly above-mentioned those two formula.Those skilled in the art in the present technique field can also adopt different hole coded systems and corresponding with it different data handing formula to reach the purpose that position and velocity information read and handle according to thought according to the present invention, and this does not exceed summary of the invention of the present invention.Time quantum between the pulse is measured by signal processing circuit in the present embodiment; but this amount also can be provided by optical receiver 8; or offer signal processing circuit by other circuit or timing means; such simple functions module variations is that easy full of beard reaches, obviously still within scope of patent protection of the present invention.
In the present embodiment, optical transmitting set 6 is laser diodes, and it sends beam of laser.Optical receiver 8 is photoconductive cells.When optical transmitting set 6 skims over identification plate 5 and since hole and plate to light stop with penetrate different, thereby in optical receiver 8, produce and the cooresponding electric pulse in hole.Certainly in some other embodiment of the present invention, can also select for use other light sources to be used as the light source of optical transmitting set 6.
Relative position control hole 91 is the consistent equidistant bar holes of a series of distances among the present invention, and it can be a row, also can be many rows, and the latter requires to differ a fixing phase place to improve the precision of measuring.Present embodiment adopts bar hole can improve the precision of measurement, adopts the hole of other shapes also not exceed invention scope of the present invention.
This device can be realized accurately testing the speed and locating of the floating car of magnetic.Absolute location control hole 92 adopts binary encoding in the present embodiment, the distance of its expression can be increased by the number of bits that increases on the identification plate, and the number of phases (or spacing) of accuracy of positioning and the relative position control hole 91 of employing, pop one's head in 7 number and position are relevant.Those skilled in the art in the present technique field also can adopt the coded system beyond the binary encoding to implement this patent, and this does not exceed protection scope of the present invention.
This technology can be widely used in testing the speed and locating of magnetic-levitation train, also can be used for the occasion that other need adopt no touch to test the speed and locate, and is particularly suitable for the occasions such as transfer system of the floating car of magnetic, subterranean railway, translation.
This invention is tested on the floating car of the magnetic of Southwest Jiaotong University's development.It is made of position identification plate on sensing probe 7 (vehicle-mounted code reader), the circuit 5 and signal processing circuit.Wherein, except that tick lables plate 5 was placed on the car lower railway 3, all the other were all laid onboard.During train operation, the location information on probe 7 (vehicle-mounted demoder) take-off location identification plate 5.Obtain the present speed of train by the relative position signal; Determine the current location of train by relative position signal and absolute location information.
As calculated, tick lables plate code reader can correctly be read the coded message on the identification plate 5 under speed of experiment is not less than the speed of 50m/h.Highest measurement speed is not less than 500m/h.Position error is not more than a relative positioning pitch-row (two probes, stagger 90 spend) when arranging continuously.Range rate accuracy: (low speed is with surveying all methods, high speed frequency measurement method) distance error is not more than two relative positioning pitch-rows when arranging continuously; Adopting during discontinuous layout and surveying all methods (frequency division during high speed) error is the cycle of 2 rf carriers.
Adopt above-mentioned thinking,, improve and test the speed and accuracy of positioning, also can realize the automatic guidance that moves by arranging different notches 9 on the identification plate 5 and corresponding sensor 7 being installed realizing obtaining of more information.
Claims (7)
1, the floating automobile-used registration device that tests the speed of a kind of magnetic is characterized in that it comprises:
Vehicle-mounted optical transmitting set (6) more than one;
Mounted in a vehicle and the corresponding optical receiver in optical transmitting set (6) position (8), this optical receiver (8) are subjected to illumination to penetrate the back and produce electric impulse signal;
Be installed in the opaque identification plate (5) of track (3) side, this identification plate (5) is provided with certain regularly arranged control hole (9), and the position of identification plate (5) is between optical transmitting set (6) and the optical receiver (8);
The signal processing circuit that links to each other with optical receiver (8) onboard is installed, and the time also can handle the electric pulse that optical receiver (8) produces according to predefined formula between this signal processing circuit calculating pulse, obtains the velocity location data.
2, the floating automobile-used registration device that tests the speed of magnetic according to claim 1 is characterized in that described optical transmitting set (6) is a laser.
3, the floating automobile-used registration device that tests the speed of magnetic according to claim 1 is characterized in that described optical receiver (8) is a photoconductive cell.
4, the floating automobile-used registration device that tests the speed of magnetic according to claim 1, it is characterized in that the control hole (9) on the described identification plate (5) is the equidistant relative position control hole (91) of a row, the default formula of corresponding signal processing circuit is: the speed of a motor vehicle equals pitch of holes divided by optical transmitting set (6) or optical receiver (8) control hole (9) the spacing required time of passing by, and the floating car range ability of magnetic equals pitch of holes and amasss with hole count is.
5, the floating automobile-used registration device that tests the speed of magnetic according to claim 1, it is characterized in that the control hole (9) on the described identification plate (5) is the absolute location control hole (92) of row's expression absolute position encoder, corresponding signal processing circuit is a code-reading apparatus, the speed of a motor vehicle equal to read range ability divided by the time.
6, the floating automobile-used registration device that tests the speed of magnetic according to claim 5 is characterized in that the absolute position encoder of described absolute location control hole (92) is a binary encoding.
7, the floating automobile-used registration device that tests the speed of magnetic according to claim 1, the control hole (9) that it is characterized in that (5) on the described identification plate can be many rows, and arranging control hole (9) can existing absolute location control hole (92) row have relative position control hole (91) row again more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024657 CN100497036C (en) | 2004-05-26 | 2004-05-26 | Speed-measuring positioner of magnetic suspension vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024657 CN100497036C (en) | 2004-05-26 | 2004-05-26 | Speed-measuring positioner of magnetic suspension vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1583457A CN1583457A (en) | 2005-02-23 |
| CN100497036C true CN100497036C (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410024657 Expired - Fee Related CN100497036C (en) | 2004-05-26 | 2004-05-26 | Speed-measuring positioner of magnetic suspension vehicle |
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| CN (1) | CN100497036C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007001479B4 (en) * | 2007-01-09 | 2019-10-10 | Siemens Aktiengesellschaft | Method and device for measuring the pole angle of a magnetic levitation vehicle of a magnetic levitation railway |
| CN100428284C (en) * | 2007-03-08 | 2008-10-22 | 中国人民解放军国防科学技术大学 | Data communication and positioning-speed-measuring combined system based on asymmetic structure inductive loop |
| DE102009015540A1 (en) * | 2009-04-01 | 2010-10-14 | Siemens Aktiengesellschaft | Method and device for speed monitoring |
| CN103183043B (en) * | 2011-12-27 | 2015-08-19 | 北京交通大学 | A kind of train positioning system |
| CN106494256A (en) * | 2016-11-24 | 2017-03-15 | 西南交通大学 | The control system of Superconducting MAGLEV |
| CN109849975B (en) * | 2017-11-30 | 2020-08-14 | 株洲中车时代电气股份有限公司 | Passive speed measuring device of maglev train and speed measuring system of maglev train |
| CN108045263B (en) * | 2017-12-08 | 2020-09-01 | 江西理工大学 | Precise positioning and speed measuring system and method for magnetic suspension train |
| CN111335084B (en) * | 2018-12-19 | 2021-11-16 | 中车唐山机车车辆有限公司 | Track |
| CN112172535B (en) * | 2020-10-16 | 2021-10-19 | 中国人民解放军国防科技大学 | Method for positioning, measuring speed and measuring height of magnetic-levitation train |
-
2004
- 2004-05-26 CN CN 200410024657 patent/CN100497036C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 磁悬浮列车定位和测速技术研究. 龙志强，李晓龙，周文武，刘曙生.国防科技大学学报，第25卷第4期. 2003 |
| 磁悬浮列车定位和测速技术研究. 龙志强，李晓龙，周文武，刘曙生.国防科技大学学报，第25卷第4期. 2003 * |
| 磁悬浮列车脉宽编码式绝对定位系统. 李晓龙，龙志强，刘曙生.传感器技术，第22卷第4期. 2003 |
| 磁悬浮列车脉宽编码式绝对定位系统. 李晓龙，龙志强，刘曙生.传感器技术，第22卷第4期. 2003 * |
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| CN1583457A (en) | 2005-02-23 |
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Owner name: TONGJI UNIVERSITY Free format text: FORMER OWNER: SHANGHAI MAGNETIC SUSPENSION COMMUNICATION ENGINEERING TECHNOLOGY RESEARCH CENTE Effective date: 20131126 |
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Free format text: CORRECT: ADDRESS; FROM: 201204 PUDONG NEW AREA, SHANGHAI TO: 200092 YANGPU, SHANGHAI |
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Effective date of registration: 20131126 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee after: Tongji University Address before: 201204 Pudong New Area, Longyang Road, No. 2520, Patentee before: Shanghai Magnetic Suspension Communication Engineering Technology Research Cente Effective date of registration: 20131126 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee after: Tongji University Address before: 201204 Pudong New Area, Longyang Road, No. 2520, Patentee before: Shanghai Magnetic Suspension Communication Engineering Technology Research Cente |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20190526 |