CN110907662A - Simulation test system for positioning and speed measuring device of high-speed maglev train - Google Patents
Simulation test system for positioning and speed measuring device of high-speed maglev train Download PDFInfo
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- CN110907662A CN110907662A CN201911201955.2A CN201911201955A CN110907662A CN 110907662 A CN110907662 A CN 110907662A CN 201911201955 A CN201911201955 A CN 201911201955A CN 110907662 A CN110907662 A CN 110907662A
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- 238000012360 testing method Methods 0.000 title claims abstract description 97
- 238000004088 simulation Methods 0.000 title claims abstract description 51
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 5
- 238000005339 levitation Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a simulation test system of a high-speed maglev train positioning device, which mainly realizes the function simulation test of a positioning speed measuring device (comprising a relative position sensor and an absolute position sensor) for the high-speed maglev train, and comprises a low-speed test system and a high-speed test system; according to the low-speed test system and the high-speed test system designed by the invention, simulation tests are respectively carried out aiming at different functional requirements of the positioning and speed measuring system under low-speed and high-speed running conditions, and are compared with actual running test conditions of a real object on a train, the overall performance of the system meets the design requirements, and the accurate simulation test of the correlation performance of the positioning and speed measuring device (comprising a phase position sensor and an absolute position sensor) of the high-speed magnetic suspension train can be realized.
Description
Technical Field
The invention particularly relates to a simulation test system for a positioning device of a high-speed magnetic suspension train, which mainly realizes the function simulation test of a positioning speed measuring device (comprising a relative position sensor and an absolute position sensor) for the high-speed magnetic suspension train.
Background
The current high-speed magnetic suspension train generally adopts a speed measurement positioning scheme based on the combination of tooth space detection and absolute position detection, and the scheme used for the absolute position detection is an electromagnetic induction coding type absolute positioning method. The positioning and speed measuring device of the high-speed magnetic suspension train mainly comprises a relative position sensor and an absolute position sensor. The relative position sensor is mainly based on tooth slot detection and is used for measuring the real-time electrical angle between the train and the long stator track and the running speed of the train; the absolute position sensor is used to determine the absolute position of the train operation, primarily by reading the relevant information on the location indicator panel.
During operation, the speed measuring and positioning system of the train must accurately measure the position and speed of the maglev train and transmit the measured position and speed to the vehicle operation control system in real time, so that the vehicle operation control system can control the train running at high speed. When the maglev train runs at low speed (the speed is less than 20km/h), the speed measurement positioning system must also provide accurate stator electrical angle to the traction control system so that the traction control system can traction the train.
In order to ensure the testing precision of the positioning testing device, special testing equipment needs to be designed and manufactured for metering sensor products. And (3) according to the actual installation environment and the test conditions of the sensor product, carrying out test metering on the sensor, and obtaining the most real sensor performance. However, in practical application, the installation position structure of the related sensor of the positioning and testing device is special, so that the testing and metering under the real installation condition of the sensor cannot be realized, and particularly, the highest running speed of a high-speed maglev train reaches 600KM/h, and the cost for developing real testing equipment is too high, so that the simulation testing equipment needs to be developed, the testing condition of a simulation product is simulated, and the accurate measurement of the sensor is met as much as possible.
Disclosure of Invention
The invention relates to a simulation test system for a positioning and speed measuring device of a high-speed magnetic suspension train, which realizes effective test of related functions of the positioning and speed measuring device (comprising a relative position sensor and an absolute position sensor) of the high-speed magnetic suspension train, performs classified simulation test according to different functional requirements of the positioning and speed measuring device at high speed and low speed, realizes simulation test of the full function of the positioning and speed measuring device, and ensures the normality and accuracy of each function of the positioning and speed measuring device under the full working condition.
The test system of the invention comprises two parts, namely a low-speed test system and a high-speed test system.
The low-speed test system mainly builds a physical test environment according to the operation condition of the high-speed maglev train, so that the positioning speed measuring device can simulate the actual working state of the train at low speed, the output performance of the positioning speed measuring device at low speed of the train is tested by controlling the operation speed of the system, the output result is subjected to relevant analysis, and whether the positioning speed measuring device can meet relevant requirements is judged.
The high-speed test system mainly utilizes a hardware circuit to cooperate with a test tool, controls the test tool to generate a high-speed running signal through the hardware circuit, simulates the output of a related signal of the positioning speed measuring device under the high-speed running condition of a train, compares the related signal with a related signal of the hardware control circuit, and judges whether the positioning test device meets related functions under the high-speed running condition.
The specific technical scheme of the invention is as follows:
a simulation test system for a positioning and speed measuring device of a high-speed maglev train comprises a low-speed test system and a high-speed test system;
the low-speed testing system comprises a long stator track, a positioning mark plate, a relative position sensor, an absolute position sensor, a drivable high-speed moving track, a control system and a sensor signal acquisition system;
the long stator track is provided with a tooth groove surface with alternate teeth and grooves; the high-speed movable track capable of being driven is opposite to the tooth groove surface of the long stator track, and a gap is formed between the high-speed movable track capable of being driven and the long stator track;
the drivable high-speed moving track comprises a fixed guide rail and a sliding block; the sliding block is controlled by a control system to generate the simulated motion of the magnetic suspension train on the fixed guide rail; the relative position sensor and the absolute position sensor are arranged on the sliding block; the positioning mark plates are multiple and are all arranged on the fixed guide rail;
the relative position sensor is used for feeding back relative position information to the sensor signal acquisition system through the induction tooth space surface when the sliding block moves at a low speed along the fixed guide rail under the control of the control system;
the absolute position sensor is used for feeding back absolute position information to the sensor signal acquisition system through the induction positioning mark plate when the sliding block moves at a low speed along the fixed guide rail under the control of the control system;
the high-speed test system comprises an analog long stator plate, an analog positioning mark plate, a control system and a sensor signal acquisition system; the simulation long stator plate and the simulation positioning mark plate are connected with a control system through cables; the relative position sensor and the absolute position sensor are connected with a sensor acquisition system through cables;
the analog long stator plate is used for generating an analog relative position signal which can be measured by a relative position sensor of the magnetic suspension train during high-speed movement under the control of a control system;
the analog positioning mark plate is used for generating analog absolute position signals which can be read by an absolute position sensor of the magnetic suspension train during high-speed movement under the control of a control system; the relative position sensor is also used for acquiring a high-speed motion simulation relative position signal of the magnetic suspension train and feeding the relative position signal back to the sensor signal acquisition system;
the absolute position sensor is also used for acquiring a high-speed motion simulation absolute position signal and feeding back the signal to the sensor signal acquisition system.
Preferably, the simulation test system for the high-speed maglev train positioning and speed measuring device further comprises a plurality of groups of mounting tools, and when the low-speed test system works, the relative position sensor and the absolute position sensor are both fixedly mounted on the sliding block through the mounting tools; and the positioning mark plates are all installed on the fixed guide rail through installation tools.
Preferably, when the low-speed test system works, the installation tool provided with the relative position sensor is also used for adjusting a gap between a test surface of the relative position sensor and the long stator track.
Preferably, when the low-speed test system works, the installation tool provided with the positioning mark plate is also used for adjusting the clearance between the positioning mark plate and the two sides of the measurement cavity of the absolute position sensor.
Preferably, the simulation positioning mark plate is relatively fixed with a measurement cavity of the absolute position sensor through a mounting tool.
Preferably, the installation tool provided with the simulation positioning mark plate is also used for adjusting the clearance between the simulation positioning mark plate and the two sides of the measurement cavity of the absolute position sensor.
The invention can bring beneficial effects
According to the low-speed test system and the high-speed test system designed by the invention, simulation tests are respectively carried out aiming at different functional requirements of the positioning and speed measuring system under low-speed and high-speed running conditions, and are compared with actual running test conditions of a real object on a train, the overall performance of the system meets the design requirements, and the accurate simulation test of the correlation performance of the positioning and speed measuring device (comprising a phase position sensor and an absolute position sensor) of the high-speed magnetic suspension train can be realized.
Drawings
Fig. 1 is a main composition and a schematic block diagram of a low-speed simulation test system of a high-speed maglev train positioning and speed measuring device simulation test system of the invention.
Fig. 2 is a main component and a schematic block diagram of a high-speed simulation test system of the high-speed maglev train positioning and speed measuring device simulation test system of the invention.
Detailed Description
The invention will now be described in detail with reference to the drawings attached hereto
Example 1:
in this embodiment, a simulation test system for a positioning and speed measuring device of a high-speed magnetic levitation train is provided, which can well realize simulation tests on related functions in the positioning test device of the high-speed magnetic levitation train, and can respectively meet the simulation tests under low-speed and high-speed conditions according to actual needs.
The low-speed testing system mainly comprises a long stator track, a positioning mark plate, a plurality of mounting tools, a drivable high-speed guide rail, a low-speed control system, a low-speed sensor signal acquisition system and the like.
The relative position sensor and the absolute position sensor are installed on the installation tool and fixed, the installation work is fixedly connected with the drivable high-speed guide rail, the position and the gap between the relative position sensor and the long stator track are adjusted, the positions of the absolute position sensor and the positioning mark plate are adjusted, the output signals of the two sensors are collected by the low-speed sensor signal collection system, the drivable high-speed guide rail is controlled by the low-speed control system to move in an accelerating way to reach the running speed specified in the low-speed test, and the low-speed positioning speed measurement device is judged whether to meet the related functional requirements or not by respectively comparing the output speed of the relative position sensor, the electric angle of the long stator and the information of the positioning mark plate collected by the absolute position sensor with the output signals of the low-speed control system.
The high-speed test system of the invention mainly comprises a simulation long stator plate, a simulation positioning mark plate, a control and acquisition system and the like.
When the relative position sensor is used for testing the relative functions, the relative position sensor and the simulation long stator plate are relatively fixed, and the gap between the relative position sensor and the simulation long stator plate can be adjusted according to requirements. The control system controls the operation of the simulated long stator plate to simulate the relative moving speed of the relative position sensor and the long stator, the relative position sensor is excited to output a speed signal moving relative to the long stator, and the speed signal output by the relative position sensor is collected and compared with a driving signal for controlling the operation of the simulated long stator, so that the speed signal of the train can be accurately output by the relative position sensor under the condition of high-speed operation.
Similarly, when testing the related functions of the absolute position sensor, the absolute position sensor and the analog positioning mark plate are relatively fixed, and the relative position of the analog positioning mark plate and the absolute position sensor measuring cavity can be adjusted according to the testing requirements, such as the position away from a single-side measuring cavity when the analog positioning mark plate and the absolute position sensor measuring cavity are parallel, or the positioning mark plate and the measuring cavity are arranged to form a certain angle; controlling the operation of the simulated positioning mark plate by a control system, so that the simulated positioning mark plate can generate positioning mark plates with different coding meanings; the test performance of the absolute position sensor under different running speeds of the train can be simulated by controlling the switching speed of the relevant identification information of the simulated positioning mark plate; the positioning identification information output by the absolute position sensor is collected and compared with the signal of the control simulation positioning mark plate, and whether the sensor can meet the test requirements under different operating conditions is judged.
The simulated long stator plate is characterized in that a coil with a corresponding width is drawn on a printed board according to the actual width of a tooth slot in a real long stator, the on-off of the coil is controlled by a control system, so that the coil generates a corresponding induction signal on a measuring coil of a relative position sensor, and a related signal when the relative position sensor passes through the long stator is simulated. By controlling the on-off speed of the coil, the speed of the relative position sensor passing through the long stator can be simulated.
The simulation positioning mark plate is characterized in that corresponding coils are drawn on a printed board according to a test coil structure of an absolute position sensor, the on-off of the coils is controlled through a control system, the simulation positioning mark plate generates corresponding code information, the absolute position sensor test coil generates corresponding code reading information, and a related code signal read when the absolute position sensor passes through the positioning mark plate is simulated. By controlling the on-off of different coils, the coding information of different positioning mark plates can be simulated and generated; by controlling the on-off speed of the coil, the speed of the absolute position sensor passing through the positioning mark plate can be simulated.
The invention skillfully designs a low-speed simulation test system and a high-speed test system according to the test characteristics of the high-speed maglev train positioning and speed measuring system, and designs related test devices according to the test characteristics at different speeds, thereby meeting the test requirements of the positioning and speed measuring system.
The test equipment manufactured according to the invention mainly comprises a low-speed simulation test system and a high-speed simulation test system. The low-speed simulation test system mainly comprises a long stator track, a positioning mark plate, a high-speed movable track capable of being driven, an installation tool, a control system, a sensor signal acquisition system and the like. The high-speed simulation test system mainly comprises a simulation long stator plate, a simulation positioning mark plate, a control system, a sensor signal acquisition system and the like. The integration, the combination and the generalization of product test are greatly improved, the complexity of a test system is reduced, and the method has good economical efficiency. The method is suitable for the simulation test of the positioning speed measuring device product of the high-speed magnetic suspension train.
Claims (6)
1. A simulation test system for a positioning and speed measuring device of a high-speed magnetic suspension train is characterized by comprising a low-speed test system and a high-speed test system;
the low-speed testing system comprises a long stator track, a positioning mark plate, a relative position sensor, an absolute position sensor, a drivable high-speed moving track, a control system and a sensor signal acquisition system;
the long stator track is provided with a tooth groove surface with alternate teeth and grooves; the high-speed movable track capable of being driven is opposite to the tooth groove surface of the long stator track, and a gap is formed between the high-speed movable track capable of being driven and the long stator track;
the drivable high-speed moving track comprises a fixed guide rail and a sliding block; the sliding block is controlled by a control system to generate the simulated motion of the magnetic suspension train on the fixed guide rail; the relative position sensor and the absolute position sensor are arranged on the sliding block; the positioning mark plates are multiple and are all arranged on the fixed guide rail;
the relative position sensor is used for feeding back relative position information to the sensor signal acquisition system through the induction tooth space surface when the sliding block moves at a low speed along the fixed guide rail under the control of the control system;
the absolute position sensor is used for feeding back absolute position information to the sensor signal acquisition system through the induction positioning mark plate when the sliding block moves at a low speed along the fixed guide rail under the control of the control system;
the high-speed test system comprises an analog long stator plate, an analog positioning mark plate, a control system and a sensor signal acquisition system; the simulation long stator plate and the simulation positioning mark plate are connected with a control system through cables; the relative position sensor and the absolute position sensor are connected with a sensor acquisition system through cables;
the analog long stator plate is used for generating an analog relative position signal which can be measured by a relative position sensor of the magnetic suspension train during high-speed movement under the control of a control system; the analog positioning mark plate is used for generating analog absolute position signals which can be read by an absolute position sensor of the magnetic suspension train during high-speed movement under the control of a control system; the relative position sensor is also used for acquiring a high-speed motion simulation relative position signal of the magnetic suspension train and feeding the relative position signal back to the sensor signal acquisition system;
the absolute position sensor is also used for acquiring a high-speed motion simulation absolute position signal and feeding back the signal to the sensor signal acquisition system.
2. The system for simulating and testing the positioning and speed measuring device of the high-speed maglev train as claimed in claim 1, wherein the system for simulating and testing the positioning and speed measuring device of the high-speed maglev train further comprises a plurality of sets of mounting tools, and when the low-speed testing system works, the relative position sensor and the absolute position sensor are both fixedly mounted on the slide block through the mounting tools; and the positioning mark plates are all installed on the fixed guide rail through installation tools.
3. The system for simulating and testing the positioning and speed-measuring device of the high-speed maglev train as claimed in claim 2, wherein when the low-speed testing system is in operation, the installation tool with the relative position sensor is further used for adjusting the gap between the testing surface of the relative position sensor and the long stator track.
4. The system for simulating and testing the positioning and speed-measuring device of a high-speed magnetic levitation train as recited in claim 2, wherein when the low-speed testing system is in operation, the mounting tool with the positioning mark plate is further used for adjusting the gap between the positioning mark plate and the two sides of the measuring cavity of the absolute position sensor.
5. The system of claim 1, wherein the positioning and speed measuring device of the high-speed maglev train is fixed relative to the measuring cavity of the absolute position sensor by a mounting fixture.
6. The system for simulating and testing the positioning and speed-measuring device of a high-speed magnetic levitation train as recited in claim 5, wherein the mounting tool with the mounted simulated positioning mark plate is further used for adjusting the gap between the simulated positioning mark plate and the two sides of the measuring cavity of the absolute position sensor.
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| CN201911201955.2A CN110907662A (en) | 2019-11-29 | 2019-11-29 | Simulation test system for positioning and speed measuring device of high-speed maglev train |
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| CN201911201955.2A CN110907662A (en) | 2019-11-29 | 2019-11-29 | Simulation test system for positioning and speed measuring device of high-speed maglev train |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638072A (en) * | 2020-06-12 | 2020-09-08 | 中车青岛四方机车车辆股份有限公司 | Maglev train dynamic performance test system |
| CN112710871A (en) * | 2021-01-08 | 2021-04-27 | 中车青岛四方机车车辆股份有限公司 | Test method and device for positioning speed measurement system host |
| CN112747776A (en) * | 2020-12-21 | 2021-05-04 | 苏州长风航空电子有限公司 | Standard gap simulation test method and circuit for gap sensor |
| CN114486303A (en) * | 2021-12-31 | 2022-05-13 | 中车长春轨道客车股份有限公司 | Test platform for magnetic suspension vehicle speed measurement positioning system |
| CN114812649A (en) * | 2021-01-18 | 2022-07-29 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Test system of cross induction loop line under superspeed environment |
| CN115266160A (en) * | 2022-08-18 | 2022-11-01 | 中国人民解放军国防科技大学 | A method and device for detecting the performance of an induction loop positioning speed measurement system |
| CN115656546A (en) * | 2022-12-26 | 2023-01-31 | 北京全路通信信号研究设计院集团有限公司 | Speed measuring method, system and device for medium-low speed maglev train |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111638072A (en) * | 2020-06-12 | 2020-09-08 | 中车青岛四方机车车辆股份有限公司 | Maglev train dynamic performance test system |
| CN112747776A (en) * | 2020-12-21 | 2021-05-04 | 苏州长风航空电子有限公司 | Standard gap simulation test method and circuit for gap sensor |
| CN112710871A (en) * | 2021-01-08 | 2021-04-27 | 中车青岛四方机车车辆股份有限公司 | Test method and device for positioning speed measurement system host |
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| CN112710871B (en) * | 2021-01-08 | 2023-02-17 | 中车青岛四方机车车辆股份有限公司 | Test method and device for positioning speed measurement system host |
| JP7656046B2 (en) | 2021-01-08 | 2025-04-02 | 中▲車▼青▲島▼四方▲機車車▼輌股▲分▼有限公司 | Method and apparatus for testing a host of a positioning and speed measurement system |
| CN114812649A (en) * | 2021-01-18 | 2022-07-29 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Test system of cross induction loop line under superspeed environment |
| CN114486303A (en) * | 2021-12-31 | 2022-05-13 | 中车长春轨道客车股份有限公司 | Test platform for magnetic suspension vehicle speed measurement positioning system |
| CN114486303B (en) * | 2021-12-31 | 2023-11-21 | 中车长春轨道客车股份有限公司 | Test platform for speed measuring and positioning system of magnetic levitation vehicle |
| CN115266160A (en) * | 2022-08-18 | 2022-11-01 | 中国人民解放军国防科技大学 | A method and device for detecting the performance of an induction loop positioning speed measurement system |
| CN115656546A (en) * | 2022-12-26 | 2023-01-31 | 北京全路通信信号研究设计院集团有限公司 | Speed measuring method, system and device for medium-low speed maglev train |
| CN115656546B (en) * | 2022-12-26 | 2023-04-04 | 北京全路通信信号研究设计院集团有限公司 | Speed measurement method, system and device for medium-low speed maglev train |
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