CN209589119U - A kind of speed and position sensor detection system - Google Patents
A kind of speed and position sensor detection system Download PDFInfo
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- CN209589119U CN209589119U CN201821648061.9U CN201821648061U CN209589119U CN 209589119 U CN209589119 U CN 209589119U CN 201821648061 U CN201821648061 U CN 201821648061U CN 209589119 U CN209589119 U CN 209589119U
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 claims abstract description 84
- 238000012545 processing Methods 0.000 claims abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
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Abstract
The utility model discloses a kind of speed and position sensor detection system comprising test coil, host computer and the test coil drive unit being connected with the test coil；Wherein, the test coil changes for simulaed inductance；The test coil drive unit, for driving the test coil on-off；The host computer, the signal for processing speed and position sensor.The utility model has the following beneficial effects: it is by the way of host computer and inductance analogy device closed-loop control, overcome the shortcomings that needing to build larger volume, higher cost when detecting for the sensor based on inductance principle and low-speed detection equipment can only be carried out, and the utility model can convenient and fast simulaed inductance changing environment, inductance pace of change and changing pattern are controlled according to need for autogenic, the inductance variation of fair speed can be simulated, and then has reached convenient, multi-mode the reliability test of the speed based on inductance principle and the sensor of position.
Description
Technical Field
The utility model relates to a sensor detecting system's technical field, in particular to speed and position sensor detecting system.
Background
When a conventional magnetic levitation train runs on a track suspended in a long stator structure, speed and position sensors based on the inductance principle are used for detecting the running speed and the position of the train relative to the long stator track. In order to ensure that the sensor works reliably and correctly, special equipment is required to detect the sensor. At present, a detection method for the sensor is to construct a special test bed with an actual long stator structure, and drive the sensor to move through a motor for detection. However, the scheme only can test at a lower movement speed (0.2m/s) and cannot detect a higher operation speed of the sensor by considering factors such as the cost, the size, the component parameters, the safety and the like of the test bed.
Therefore, how to provide a speed and position sensor detection system which can accurately overcome the defects that a sensor based on an inductance principle needs to be built with a large size and high cost and can only be used for low-speed detection equipment during detection, can conveniently simulate an inductance change environment, controls the inductance change speed and change mode according to autonomous requirements, and can simulate the inductance change with high speed, so as to achieve the convenience of the sensor based on the speed and position of the inductance principle and the reliability test of multiple modes is an important technical problem to be solved by technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a speed and position sensor detecting system, this speed and position sensor detecting system can accurately detect maglev train's speed and position sensor function, performance and reliability high-efficiently.
In order to solve the technical problem, the utility model provides a speed and position sensor detection system, which comprises a test coil, an upper computer and a test coil driving unit connected with the test coil; wherein,
the test coil is used for simulating inductance change;
the test coil driving unit is used for driving the test coil to be switched on and off;
and the upper computer is used for processing signals of the speed and position sensors.
Optionally, the test coil driving unit is a shift register.
Optionally, the test coil driving unit is a controllable logic array.
Optionally, the controllable logic array is an analog switch array and/or an FPGA.
Optionally, the upper computer is further connected with the test coil driving unit and used for setting the on-off frequency of the test coil and realizing closed-loop control of sensor detection.
Another aspect of the present invention provides a speed and position sensor detection system, comprising a test coil, an upper computer, a speed and position sensor connected to the upper computer, and a test coil driving unit connected to the test coil; wherein,
the test coil is used for simulating inductance change;
the test coil driving unit is used for driving the test coil to be switched on and off;
the speed and position sensor is used for detecting the change of inductance caused by the on-off of the test coil;
and the upper computer is used for processing signals of the speed and position sensors.
Optionally, the test coil is disposed below the speed and position sensor.
Above-mentioned background art relatively, the utility model provides a speed and position sensor detecting system, it has following beneficial effect: the utility model discloses an upper computer and inductance analogue means closed loop control's mode has overcome to the sensor based on inductance principle to examine time measuring need build the shortcoming that the volume is great, the cost is higher, and can only carry out low-speed check out test set, just the utility model discloses simulation inductance change environment that can be convenient can simulate the inductance change of higher speed according to autonomic demand control inductance change speed and change pattern, and then has reached the convenient, multi-mode reliability test based on the sensor of the speed of inductance principle and position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of a speed and position sensor detection system according to one embodiment of the present invention;
fig. 2 is a layout diagram of a test coil according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The core of the utility model is to provide a speed and position sensor detection system, which solves the problem of detecting the speed and position sensor based on the inductance principle by the method of switching a plurality of induction coils according to a certain speed; the cost required by building the practical application environment of the sensor is saved by simulating the inductance change environment; the sensor performance testing device can test the functions and the performances of the sensor based on the speed and the position of the inductance principle, improves the detection efficiency of the sensor, and can accurately simulate the detection of the sensor at a high speed.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 2, fig. 1 is a structural diagram of a speed and position sensor detecting system according to an embodiment of the present invention; fig. 2 is a layout diagram of a test coil according to an embodiment of the present invention.
In a specific embodiment, the present invention provides a speed and position sensor detection system, comprising a test coil, an upper computer, and a test coil driving unit connected to the test coil; the test coil is used for simulating inductance change; the test coil driving unit is used for driving the test coil to be switched on and off; and the upper computer is used for processing signals of the speed and position sensors.
The utility model provides a speed and position sensor detecting system, test coil drive unit is shift register or test coil drive unit is controllable logic array. The controllable logic array is an analog switch array and/or an FPGA. The upper computer is also connected with the test coil driving unit and used for setting the on-off frequency of the test coil and realizing closed-loop control of sensor detection. The test coil driving unit and the test coil are of an integrated structure. The shape and number and layout of the test coils may vary.
In another embodiment, the present invention provides a speed and position sensor detection system, comprising a test coil, an upper computer, a speed and position sensor connected to the upper computer, and a test coil driving unit connected to the test coil; the test coil is used for simulating inductance change; the test coil driving unit is used for driving the test coil to be switched on and off; the speed and position sensor is used for detecting the change of inductance caused by the on-off of the test coil; and the upper computer is used for processing signals of the speed and position sensors. The test coil is disposed below the speed and position sensor.
The utility model provides a speed and position sensor detecting system, its theory of operation as follows:
the detection system comprises an upper computer with control software, a sensor to be detected (a speed and position sensor based on an inductance principle), a test coil driving unit and a test coil (used for simulating inductance change). The test coil driving unit of the detection system is connected with the test coil and used for generating a driving signal and directly driving the coil to be switched on and off; the test coil is positioned below the speed and position sensor, and the test coil changes the inductance change detected by the sensor through on-off change, so that the voltage at two ends of the winding coil in the sensor is changed, and the equivalent is to identify the tooth space structure of the sensor relative to the long stator of the track, thereby carrying out relative position measurement and speed measurement; the upper computer is connected with the speed and position sensor and used for processing signals of the sensor and obtaining position information and speed information detected by the sensor. The upper computer can also set the on-off frequency and the sequence of the coils to realize the closed-loop control of the detection of the sensor. The detection system is simple in structure and portable, the size of the test coil is changed only according to the size of the sensor to be detected, the detection system is flexible and convenient, and detection of the speed sensor and the position sensor at a higher speed can be reliably simulated.
It is right above that the utility model provides a speed and position sensor detecting system has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
1. A speed and position sensor detection system characterized by: the test device comprises a plurality of groups of test coils arranged in parallel, an upper computer and a test coil driving unit connected with the test coils; the upper computer is connected with the test coil driving unit; wherein,
the test coil is used for simulating inductance change;
the test coil driving unit is used for driving the test coil to be switched on and off according to a preset switching frequency and sequence;
and the upper computer is used for setting the on-off frequency and sequence of the test coils and processing signals of the speed and position sensors.
2. The speed and position sensor detection system of claim 1, wherein: the test coil driving unit is a shift register.
3. The speed and position sensor detection system of claim 1, wherein: the test coil driving unit is a controllable logic array.
4. A speed and position sensor detection system as claimed in claim 3 wherein: the controllable logic array is an analog switch array and/or an FPGA.
5. The speed and position sensor detection system of any one of claims 1 to 4, wherein: the upper computer is also used for realizing closed-loop control of sensor detection.
6. A speed and position sensor detection system characterized by: the device comprises a plurality of groups of test coils arranged in parallel, an upper computer, speed and position sensors connected with the upper computer, and a test coil driving unit connected with the test coils; the upper computer is connected with the test coil driving unit; wherein,
the test coil is used for simulating inductance change;
the test coil driving unit is used for driving the test coil to be switched on and off according to a preset switching frequency and sequence;
the speed and position sensor is used for detecting the change of inductance caused by the on-off of the test coil;
and the upper computer is used for setting the on-off frequency and sequence of the test coils and processing signals of the speed and position sensors.
7. The speed and position sensor detection system of claim 6, wherein: the test coil is disposed below the speed and position sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821648061.9U CN209589119U (en) | 2018-10-11 | 2018-10-11 | A kind of speed and position sensor detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821648061.9U CN209589119U (en) | 2018-10-11 | 2018-10-11 | A kind of speed and position sensor detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884526A (en) * | 2019-11-27 | 2020-03-17 | 苏州长风航空电子有限公司 | Simulation long stator for testing high-speed maglev train sensor |
| CN110907662A (en) * | 2019-11-29 | 2020-03-24 | 苏州长风航空电子有限公司 | Simulation test system for positioning and speed measuring device of high-speed maglev train |
| EP4332539A4 (en) * | 2021-04-30 | 2024-09-25 | Crrc Qingdao Sifang Co Ltd | Detection system for suspension system of maglev train |
-
2018
- 2018-10-11 CN CN201821648061.9U patent/CN209589119U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884526A (en) * | 2019-11-27 | 2020-03-17 | 苏州长风航空电子有限公司 | Simulation long stator for testing high-speed maglev train sensor |
| CN110907662A (en) * | 2019-11-29 | 2020-03-24 | 苏州长风航空电子有限公司 | Simulation test system for positioning and speed measuring device of high-speed maglev train |
| EP4332539A4 (en) * | 2021-04-30 | 2024-09-25 | Crrc Qingdao Sifang Co Ltd | Detection system for suspension system of maglev train |
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