CN113091720A - Detection method and detection system of electronic compass - Google Patents
Detection method and detection system of electronic compass Download PDFInfo
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- CN113091720A CN113091720A CN202110392969.8A CN202110392969A CN113091720A CN 113091720 A CN113091720 A CN 113091720A CN 202110392969 A CN202110392969 A CN 202110392969A CN 113091720 A CN113091720 A CN 113091720A
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- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 10
- 238000012549 training Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/38—Testing, calibrating, or compensating of compasses
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- Radar, Positioning & Navigation (AREA)
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- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The invention discloses a detection method and a detection system of an electronic compass. The detection method comprises the following steps: (1) the electronic compass is made to rotate horizontally. (2) And converting the electromagnetic field mode value generated by the electronic compass into a coordinate point in an XY plane. (3) And judging whether the circuit board of the electronic compass is installed correctly or not by judging whether the path direction of the coordinate point is consistent with the horizontal rotation of the electronic compass or not. (4) And horizontally rotating the electronic compass for a circle, and judging whether the electronic compass is magnetized and damaged or not according to the proximity degree of the coordinate point path and the standard circle. (5) And (4) the electronic compass which meets the detection in the steps (3) and (4) is qualified. The invention also discloses a hardware detection system matched with the detection method. The detection method can detect the assembled electronic compass one by one to determine whether the product is qualified or not, has short detection time and uncomplicated operation, and can finish detection without training detection personnel basically.
Description
Technical Field
The invention relates to the field of detection, in particular to a detection system of an electronic compass.
Background
Electronic compasses, also known as digital compasses, have been widely used in the fields of aviation, aerospace, robots, navigation, autonomous navigation of vehicles, etc. as navigation instruments or attitude sensors in modern technical conditions. At present, factory tests of the electronic compass mostly only verify the accuracy of the electronic compass, but reverse installation of the front side and the back side of a circuit board may exist in the compass assembling process, or the condition of magnetization damage of components and parts caused by the use of a magnetic tool in the assembling process occurs; the detection scheme that currently often adopts is for installing specific equipment (for example unmanned aerial vehicle) on detecting, then the actual measurement analysis after gathering data, and manpower and time are wasted to this kind of mode comparison.
Disclosure of Invention
The present invention is directed to a method for testing an electronic compass, which may solve one or more of the above problems.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a detection method of an electronic compass comprises the following steps:
(1) the electronic compass is enabled to rotate horizontally,
(2) converting the electromagnetic field module value generated by the electronic compass into a coordinate point in an XY plane;
(3) judging whether the circuit board of the electronic compass is installed correctly or not by judging whether the path direction of the coordinate point is consistent with the horizontal rotation of the electronic compass or not;
(4) the electronic compass rotates horizontally for a circle, and whether the electronic compass is magnetized and damaged is judged according to the proximity degree of the coordinate point path and the standard circle;
(5) and (4) the electronic compass which meets the detection in the steps (3) and (4) is qualified.
Preferably: the detection in the step (3) is performed preferentially to the detection in the step (4).
Preferably: the detection of the step (3) is performed simultaneously with the detection of the step (4).
It is another object of the present invention to provide a test system for an electronic compass that solves one or more of the above mentioned problems.
A detection system for an electronic compass, comprising:
the test module is used for installing the electronic compass to be detected and realizing the horizontal rotation of the electronic compass;
the data processing module is electrically connected with the electronic compass; the coordinate points are used for converting the electromagnetic field modulus of the electronic compass into X, Y coordinate points in two directions;
the display module is electrically connected with the data processing module; the display module is used for displaying the coordinate point in a coordinate system;
the first judgment module is used for judging whether the horizontal rotation direction of the electronic compass is consistent with the path direction of a coordinate point appearing according to a time sequence; if the circuit boards are correctly installed, entering a second judgment module;
the second judgment module is used for judging whether the coordinate point is a standard circle in the coordinate system according to the time sequence connecting line; if the standard circle is the standard circle, the product is qualified through detection.
Preferably: the test module comprises a turntable and a base, wherein the turntable is arranged on the base through a rotating shaft.
Preferably: the rotating shaft is driven by a motor.
Preferably: the base is provided with a level gauge.
Preferably: and screw adjusting buttons are arranged at n equal positions at the bottom of the base. Wherein n is more than or equal to 3.
Preferably: the display module includes a display screen having a grid thereon.
The invention has the technical effects that:
the detection method can be used for detecting the electronic compass one by one after the electronic compass is assembled to determine whether the product is qualified or not, the detection process is quick, the detection time is short, and the detection can be finished without training for detection personnel basically;
the system is simple in assembly, rapid in operation and uncomplicated in operation, can realize express detection of correct installation of the circuit board in the assembled electronic compass, and can detect whether the electronic compass is damaged by magnetization and whether the magnetic field value is normal.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic illustration of the testing method of the present invention;
FIG. 2 is a schematic structural diagram of the present system;
FIG. 3 is a schematic diagram showing the results of the module;
FIG. 4 is a further schematic structural view of FIG. 3;
wherein the figures include the following reference numerals:
the device comprises a base 1, a turntable 11, an electronic compass 2, a data module 3 and a display module 4.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided only for the purpose of illustrating the present invention and are not to be construed as unduly limiting the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, a method for detecting an electronic compass includes:
(1) the electronic compass is enabled to rotate horizontally,
(2) converting the electromagnetic field module value generated by the electronic compass into a coordinate point in an XY plane;
(3) judging whether the circuit board of the electronic compass is installed correctly or not by judging whether the path direction of the coordinate point is consistent with the horizontal rotation of the electronic compass or not;
(4) the electronic compass rotates horizontally for a circle, and whether the electronic compass is magnetized and damaged is judged according to the proximity degree of the coordinate point path and the standard circle;
(5) and (4) the electronic compass which meets the detection in the steps (3) and (4) is qualified.
Preferably: the detection in the step (3) is performed preferentially to the detection in the step (4).
Preferably: the detection of the step (3) is performed simultaneously with the detection of the step (4).
By the method, whether the electronic compass is qualified or not can be quickly detected, and the quality of the product can be detected from the qualification or not of the assembly to the qualification or not of the product, so that the outgoing quality of the product is ensured.
As shown in fig. 2, in some embodiments, there is also provided a detection system of an electronic compass according to the detection method, including:
the test module is used for installing the electronic compass to be detected and realizing the horizontal rotation of the electronic compass; the specific structure of the test module is not limited, and the test module is set according to the actual use requirement.
A data processing module (such as any MCU in the market) electrically connected with the electronic compass; the electronic compass transmits communication data (the communication data comprises electromagnetic field modulus values) of the electronic compass to the data processing module in a communication mode of SPI, IC, CAN or serial port, the data processing module extracts the electromagnetic field modulus values after analyzing the communication data, and outputs X, Y coordinate points in two directions to the display module; the specific transformation process is not limited.
The display module is electrically connected with the data processing module; the display module is used for displaying the coordinate point in a coordinate system; the path track and the position of the coordinate point can be visually seen from the display module.
The first judgment module is used for judging whether the horizontal rotation direction of the electronic compass is consistent with the path direction of a coordinate point appearing according to a time sequence; if the circuit boards are correctly installed, the second judgment module is started.
The second judgment module is used for judging whether the coordinate point is a standard circle in the coordinate system according to the time sequence connecting line; if the standard circle is the standard circle, the product is qualified through detection.
The judgment can be made by directly observing the display module by human eyes, so that the cost is saved; other visual detection modules can be adopted for judgment, so that the detection precision is improved; the specific determination method is not limited.
Preferably: the test module comprises a turntable and a base, wherein the turntable is arranged on the base through a rotating shaft. The electronic compass is fixed by arranging the clamp on the turntable, the specific form of the clamp is not limited, and the electronic compass is correspondingly adjusted according to the shape of the electronic compass.
Preferably: the rotating shaft is driven by a motor. The convenience of use is improved.
Preferably: the base is provided with a level gauge. The accuracy of use can be guaranteed.
Preferably: and screw adjusting buttons are arranged at n equal positions at the bottom of the base. Wherein n is more than or equal to 3. Is convenient for flexible use.
Preferably: the display module includes a display screen having a grid thereon. Whether the circle is standard or not can be determined through the grid, and the method is more intuitive.
In some embodiments, a more preferable mode is to draw a standard circle and an error circle on the display screen, and the display module can visually judge whether the coordinate points are matched or not as long as the coordinate points fall into the error circle and the standard circle; meanwhile, whether the electronic compass is damaged by magnetization or not and whether the magnetic field value is normal or not can be detected.
Example one
As shown in fig. 1, a method for detecting an electronic compass includes:
(1) the electronic compass is enabled to rotate horizontally,
(2) converting the electromagnetic field module value generated by the electronic compass into a coordinate point in an XY plane;
(3) judging whether the circuit board of the electronic compass is installed correctly or not by judging whether the path direction of the coordinate point is consistent with the horizontal rotation of the electronic compass or not;
(4) the electronic compass rotates horizontally for a circle, and whether the electronic compass is magnetized and damaged is judged according to the proximity degree of the coordinate point path and the standard circle;
(5) and (4) the electronic compass which meets the detection in the steps (3) and (4) is qualified.
Wherein the detection of the step (3) is performed preferentially to the detection of the step (4).
In the embodiment, whether the circuit board is reversely mounted is tested, if the circuit board is reversely mounted, the test is stopped, and the circuit board is remounted, so that the detection efficiency can be improved.
Example two
As shown in fig. 1, in the present embodiment, the detection of the step (3) is performed simultaneously with the detection of the step (4), unlike the above-described embodiment.
When the detection is carried out simultaneously, whether the circuit board has problems or not can be quickly detected whether the electronic compass is damaged by magnetization or not and whether the magnetic field value is normal or not; when the electronic compass is determined to be normal, the electronic compass can pass the test on the spot, and if the circuit board has problems, the electronic compass can be reworked on the spot, so that the repair speed is increased.
EXAMPLE III
As shown in fig. 1 and fig. 2, in the present embodiment, there is provided a detection system for an electronic compass, including:
the test module is used for installing the electronic compass to be detected and realizing the horizontal rotation of the electronic compass; the specific structure of the test module is not limited, and the test module is set according to the actual use requirement.
The test module comprises a turntable and a base, wherein the turntable is arranged on the base through a rotating shaft. The electronic compass is fixed by arranging a clamp on the turntable, wherein the clamp is an elastic clamp, and 2-4 elastic clamps are equally arranged on the surface of the turntable. The rotating shaft is driven by a motor, wherein the motor is a speed-adjustable motor, and can quickly complete rotation and complete subsequent detection under the condition that the circuit board is determined to be installed without problems. The base is provided with a level gauge, so that the rotation level of the electronic compass is guaranteed. And screw adjusting buttons are arranged at n equal positions at the bottom of the base. Wherein n is more than or equal to 3. The level can be adjusted conveniently.
The data processing module is electrically connected with the electronic compass; the coordinate points are used for converting the electromagnetic field modulus of the electronic compass into X, Y coordinate points in two directions; where X and Y are the modulus values of the electromagnetic field modulus values, respectively; the specific transformation process is not limited.
The display module is electrically connected with the data processing module; the display module is used for displaying the coordinate point in a coordinate system; the path track and the position of the coordinate point can be visually seen from the display module.
The optimal mode is that a standard circle and an error circle are drawn on a display screen, and whether the coordinate points meet the standard circle or not can be visually judged from a display module as long as the coordinate points fall into the error circle and the standard circle; meanwhile, whether the electronic compass is damaged by magnetization or not and whether the magnetic field value is normal or not can be detected.
As shown in fig. 3 and 4, the first determining module is configured to determine whether a horizontal rotation direction of the electronic compass is consistent with a path direction of a coordinate point appearing according to a time sequence; if the circuit boards are correctly installed, the second judgment module is started.
As shown in fig. 3 and 4, the second determining module is configured to determine whether a line connecting the coordinate points in the coordinate system according to the time sequence is a standard circle; if the standard circle is the standard circle, the product is qualified through detection.
The judgment can be visually judged by observing the display screen through human eyes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A detection method of an electronic compass is characterized in that: comprises that
(1) The electronic compass is enabled to rotate horizontally,
(2) converting the electromagnetic field module value generated by the electronic compass into a coordinate point in an XY plane;
(3) judging whether the circuit board of the electronic compass is installed correctly or not by judging whether the path direction of the coordinate point is consistent with the horizontal rotation of the electronic compass or not;
(4) the electronic compass rotates horizontally for a circle, and whether the electronic compass is magnetized and damaged is judged according to the proximity degree of the coordinate point path and the standard circle;
(5) and (4) the electronic compass which meets the detection in the steps (3) and (4) is qualified.
2. The method for detecting an electronic compass according to claim 1, wherein: the detection in the step (3) is performed preferentially to the detection in the step (4).
3. The method for detecting an electronic compass according to claim 1, wherein: the detection of the step (3) is performed simultaneously with the detection of the step (4).
4. A detection system of an electronic compass is characterized in that: comprises that
The test module is used for installing the electronic compass to be detected and realizing the horizontal rotation of the electronic compass;
the data processing module is electrically connected with the electronic compass; the coordinate points are used for converting the electromagnetic field modulus of the electronic compass into X, Y coordinate points in two directions;
the display module is electrically connected with the data processing module; the display module is used for displaying the coordinate point in a coordinate system;
the first judgment module is used for judging whether the horizontal rotation direction of the electronic compass is consistent with the path direction of a coordinate point appearing according to a time sequence; if the circuit boards are correctly installed, entering a second judgment module;
the second judgment module is used for judging whether the coordinate point is a standard circle in the coordinate system according to the time sequence connecting line; if the standard circle is the standard circle, the product is qualified through detection.
5. The detection system of the electronic compass according to claim 4, wherein: the test module comprises a turntable and a base, wherein the turntable is arranged on the base through a rotating shaft.
6. The detection system of the electronic compass according to claim 5, wherein: the rotating shaft is driven by a motor.
7. The detection system of the electronic compass according to claim 5, wherein: the base is provided with a level gauge.
8. The detection system of the electronic compass according to claim 4, wherein: the display module includes a display screen having a grid thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392969.8A CN113091720A (en) | 2021-04-13 | 2021-04-13 | Detection method and detection system of electronic compass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392969.8A CN113091720A (en) | 2021-04-13 | 2021-04-13 | Detection method and detection system of electronic compass |
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| CN113091720A true CN113091720A (en) | 2021-07-09 |
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| CN202110392969.8A Pending CN113091720A (en) | 2021-04-13 | 2021-04-13 | Detection method and detection system of electronic compass |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149262A (en) * | 2006-09-20 | 2008-03-26 | 三星电子株式会社 | Method, apparatus, and medium for calibrating compass sensor, method ,apparatus and medium for measuring azimuth |
| CN102297686A (en) * | 2010-06-22 | 2011-12-28 | 神讯电脑(昆山)有限公司 | Compass testing equipment and method |
| CN103884325A (en) * | 2012-12-21 | 2014-06-25 | 西安合众思壮导航技术有限公司 | Electronic compass and device with the same |
| CN105157690A (en) * | 2015-09-01 | 2015-12-16 | 湖南基石信息技术有限公司 | Four-rotor aircraft magnetic compass calibration method |
| CN110770539A (en) * | 2018-07-26 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Magnetic sensor calibration method, control terminal and movable platform |
| CN211234438U (en) * | 2019-12-31 | 2020-08-11 | 广西电网有限责任公司百色供电局 | Automatic rotation calibration system for electronic compass of unmanned aerial vehicle |
-
2021
- 2021-04-13 CN CN202110392969.8A patent/CN113091720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149262A (en) * | 2006-09-20 | 2008-03-26 | 三星电子株式会社 | Method, apparatus, and medium for calibrating compass sensor, method ,apparatus and medium for measuring azimuth |
| CN102297686A (en) * | 2010-06-22 | 2011-12-28 | 神讯电脑(昆山)有限公司 | Compass testing equipment and method |
| CN103884325A (en) * | 2012-12-21 | 2014-06-25 | 西安合众思壮导航技术有限公司 | Electronic compass and device with the same |
| CN105157690A (en) * | 2015-09-01 | 2015-12-16 | 湖南基石信息技术有限公司 | Four-rotor aircraft magnetic compass calibration method |
| CN110770539A (en) * | 2018-07-26 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Magnetic sensor calibration method, control terminal and movable platform |
| CN211234438U (en) * | 2019-12-31 | 2020-08-11 | 广西电网有限责任公司百色供电局 | Automatic rotation calibration system for electronic compass of unmanned aerial vehicle |
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Application publication date: 20210709 |
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