A device for simulating the direction of geomagnetic induction signals

Abstract

The invention discloses a device for simulating the direction of geomagnetic induction signals, belonging to the field of signal simulation machines. The device comprises a magnetic sensor simulator body, the magnetic sensor simulator body comprises a loading box body, a magnetic sensor simulator control board and a magnetic sensor simulator module, and the magnetic sensor simulator control board and the magnetic sensor simulator module are both arranged inside the loading box body, the magnetic sensor simulator control board comprises a power supply module, an angle setting and display module, a first CPU processing module and a first RS232 communication module, the magnetic sensor simulator module comprises a second RS232 communication module, a second CPU processing module, a frequency multiplication module and a synchronous output module, and the device can quickly adjust the angle parameters of the magnetic sensor and ensure the measurement accuracy and stability after adjustment, and the device is simple to operate during use, which can effectively improve the work efficiency and ensure the quality of the final maintenance.

Description

Technical Field

[0001] The invention relates to the field of signal simulation machines, and more specifically to a direction simulation device for geomagnetic induction signals. Background Art

[0002] The working principle of the magnetic sensor is to use the characteristics of the change of its magnetic sensitive element relative to the geomagnetic orientation to generate a corresponding output signal to determine the direction of the geomagnetic meridian. The sensor uses a three-phase geomagnetic sensitive element, and the magnetic circuit of the sensitive element is a regular hexagonal closed magnetic circuit. There are three sets of windings on the overlapping hexagonal soft magnetic core. The three sets of excitation windings are connected in series, and the signal windings are connected in a star shape.

[0003] Based on the above, the inventors found that:

[0004] In the test process that requires the matching of magnetic sensors, it is very troublesome to adjust the angle parameter information of the magnetic sensors, and the accuracy is not high.

[0005] Therefore, in view of this, the existing structure is studied and improved, and a direction simulation device for geomagnetic induction signals is provided, in order to achieve a more practical purpose. Summary of the invention

[0006] 1. Technical problems to be solved

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a direction simulation device for geomagnetic induction signals, which can quickly adjust the angle parameters of the magnetic sensor and ensure the measurement accuracy and stability after adjustment. At the same time, the device is easy to operate during use, which can effectively improve work efficiency and ensure the quality of the final maintenance.

[0008] 2. Technical solution

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A device for simulating the direction of geomagnetic induction signals, comprising a magnetic sensor simulator body, the magnetic sensor simulator body comprising a loading box, a magnetic sensor simulator control board and a magnetic sensor simulator module, and the magnetic sensor simulator control board and the magnetic sensor simulator module are both arranged inside the loading box, the magnetic sensor simulator control board comprises a power module, an angle setting and display module, a first CPU processing module and a first RS232 communication module, and the magnetic sensor simulator module comprises a second RS232 communication module, a second CPU processing module, a frequency multiplication module and a synchronous output module;

[0011] A power module, used to control the power connection of the simulation device and provide power to the entire system, and is arranged on one side of the loading box;

[0012] An angle setting and display module, used for setting the device to adjust the simulation direction of geomagnetic induction signal direction simulation and displaying the display result of angle adjustment, and is arranged on the upper surface of the loading box body;

[0013] A first CPU processing module, used for processing data generated under the operation of the power module and the angle setting and display module, is arranged inside the loading box body;

[0014] A first RS232 communication module, used for transmitting data generated in the first CPU processing module in the magnetic sensor simulator control board to the second CPU processing module in the magnetic sensor simulator module, is arranged on the other side of one side of the loading box body;

[0015] A second RS232 communication module, used for receiving data sent by the first RS232 communication module, and disposed inside the loading box;

[0016] A second CPU processing module, used for processing the control signal received from the first CPU processing module and synchronizing the data to the corresponding module settings, and arranged inside the loading box body;

[0017] The frequency multiplication module is used to control the excitation signal to perform frequency conversion and is arranged inside the loading box;

[0018] The synchronous output module is used to process the excitation signal processed by the frequency multiplication module and output it as a three-wire synchronous signal, and is arranged inside the loading box body.

[0019] Furthermore, the power supply module is composed of multiple transformers, and the input power supply is +27VDC, and the output voltage is ±15VDC or +5VDC.

[0020] Furthermore, the angle setting and display module comprises a button (3021), a stepless knob (3022) and an LED display screen (3023), wherein the button (3021) is arranged on one side of the stepless knob (3022), the setting angle range of the stepless knob (3022) is 0-359.9°, and the LED display screen (3023) is arranged on one side of the stepless knob (3022).

[0021] Furthermore, the frequency doubling module performs a frequency doubling process on the excitation signal from 400 Hz to 800 Hz.

[0022] Furthermore, the selectable model range of the magnetic sensor simulator body includes TMU-0311A, TMU-0311B, TMU-0311C, and TMU-0311D. When performing signal input and output, the selected model can be determined according to the amplitudes of different input and output signals;

[0023] The input effective value of the TMU-0311A magnetic sensor simulator is 1.5V, and the maximum output effective value is 50mV;

[0024] The input effective value of the TMU-0311B magnetic sensor simulator is 1.7V, and the maximum output effective value is 150mV;

[0025] The input effective value of the TMU-0311C magnetic sensor simulator is 23.5V, and the maximum output effective value is 300mV;

[0026] The input effective value of the TMU-0311D magnetic sensor simulator is 1.7V, and the maximum output effective value is 150mV.

[0027] Furthermore, the performance parameters of the selectable models of the magnetic sensor simulator body are determined as follows:

[0028] The input signal error of the magnetic sensor simulator model TMU-0311A is ±100mV, the maximum effective value output error is ±3.3mV, and when the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, the allowable error is 5°, and the time interval is 35us;

[0029] The input signal error of the magnetic sensor simulator model TMU-0311B is ±200mV, and the maximum effective value allowable error of the output is ±17.6mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us;

[0030] The input signal error of the magnetic sensor simulator model TMU-0311C is ±2.5V, and the maximum effective value output error is ±31.9mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us;

[0031] The input signal error of the magnetic sensor simulator model TMU-0311D is ±200mV, and the maximum effective value allowable error of the output is ±17.6mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us.

[0032] Furthermore, the magnetic sensor simulator body selected as the magnetic sensor simulator model TMU-0311 has a size of 160 mm×100 mm×70 mm.

[0033] Furthermore, the optional socket models of the magnetic sensor simulator body are as follows:

[0034] XS1 socket model 2PX24J10Q5B for TMU-0311A magnetic sensor simulator;

[0035] XS1 socket model YZ-7 for TMU-0311B magnetic sensor simulator;

[0036] XS1 socket model MS3470L12-10PINI I of TMU-0311C magnetic sensor simulator;

[0037] XS1 socket model MS3470L12-10PINI I for TMU-0311D magnetic sensor simulator.

[0038] 3. Beneficial effects

[0039] Compared with the prior art, the advantages of the present invention are:

[0040] In this scheme, the principle of the magnetic sensor simulator is to input +27VDC and convert it into ±15VDC and +5VDC through the power module to provide power to the system. The angle is set by buttons and stepless knobs from 0 to 359.9° and displayed by LED. Then the CPU processes the data and transmits the data to the magnetic sensor simulator module through the RS232 communication module. The magnetic sensor simulator module receives the data from the magnetic sensor control board through RS232 and makes corresponding settings for the synchronous output module. The excitation signal is changed from 400Hz to 800Hz through the frequency multiplication module, and then processed by the synchronous output module to output a three-wire synchronous signal. During the test, the angle parameters of the magnetic sensor can be quickly adjusted to ensure the measurement accuracy and stability after adjustment. At the same time, the device is easy to operate during use, which can effectively improve work efficiency and ensure the quality of the final maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0042] Figure 2 It is a system schematic diagram of the present invention.

[0043] Description of the numbers in the figure:

[0044] 1. Magnetic sensor simulator body;

[0045] 2. Load the box;

[0046] 3. Magnetic sensor simulator control board; 301. Power module; 302. Angle setting and display module; 3021. Button; 3022. Stepless knob; 3023. LED display; 303. First CPU processing module; 304. First RS232 communication module;

[0047] 4. Magnetic sensor simulator module; 401. Second RS232 communication module; 402. Second CPU processing module; 403. Frequency multiplication module; 404. Synchronous output module. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0049] Example:

[0050] See also Figure 1-2 , a device for simulating the direction of geomagnetic induction signals, comprising a magnetic sensor simulator body 1, the magnetic sensor simulator body 1 comprising a loading box body 2, a magnetic sensor simulator control board 3 and a magnetic sensor simulator module 4, and the magnetic sensor simulator control board 3 and the magnetic sensor simulator module 4 are both arranged inside the loading box body 2, the magnetic sensor simulator control board 3 comprises a power module 301, an angle setting and display module 302, a first CPU processing module 303 and a first RS232 communication module 304, the magnetic sensor simulator module 4 comprises a second RS232 communication module 401, a second CPU processing module 402, a frequency multiplication module 403 and a synchronous output module 404;

[0051] A power module 301, used to control the power connection of the simulation device and provide power for the entire system, and is disposed on one side of the loading box 2;

[0052] An angle setting and display module 302, used for setting the device to adjust the simulation direction of the geomagnetic induction signal direction simulation and displaying the display result of the angle adjustment, and is arranged on the upper surface of the loading box body 2;

[0053] A first CPU processing module 303, used for processing data generated under the operation of the power module 301 and the angle setting and display module 302, is disposed inside the loading box body 2;

[0054] A first RS232 communication module 304, used to transmit data generated in the first CPU processing module 303 in the magnetic sensor simulator control board 3 to the second CPU processing module 402 of the magnetic sensor simulator module 4, is disposed on the other side of one side of the loading box body 2;

[0055] The second RS232 communication module 401 is used to receive data sent by the first RS232 communication module 304 and is disposed inside the loading box 2;

[0056] The second CPU processing module 402 is used to process the control signal received from the first CPU processing module 303 and synchronize the data to the corresponding module settings, and is arranged inside the loading box body 2;

[0057] The frequency multiplication module 403 is used to control the excitation signal to perform frequency conversion and is disposed inside the loading box 2;

[0058] The synchronous output module 404 is used to process the excitation signal processed by the frequency multiplication module 403 and output it as a three-wire synchronous signal, and is arranged inside the loading box body 2;

[0059] The principle of the magnetic sensor simulator is to input +27VDC and convert it into ±15VDC and +5VDC through the power module 301 to provide power to the system. The angle is set from 0 to 359.9° through the button 3021 and the stepless knob, and displayed through the LED. Then the CPU processes the data and transmits the data to the magnetic sensor simulator module 4 through the RS232 communication module. The magnetic sensor simulator module 4 receives the data from the magnetic sensor control board through RS232 and makes corresponding settings for the synchronous output module 404. The excitation signal is passed through the frequency multiplication module 403 to change the frequency from 400Hz to 800Hz, and then processed by the synchronous output module 404 to output a three-wire synchronous signal, thereby realizing the signal transmission from the magnetic sensor simulator control board 3 to the magnetic sensor simulator module 4, and realizing the direction simulation of the geomagnetic induction signal.

[0060] See also Figure 2 , the power module 301 is composed of multiple transformers, and the input power supply is +27VDC, and the output voltage is ±15VDC or +5VDC;

[0061] The power module 301 is connected to an external DC power source and converts the voltage into ±15VDC or +5VDC, and is used within the system to ensure that the entire simulation device and system operate at the rated voltage.

[0062] See also Figure 1 and Figure 2The angle setting and display module 302 includes a button 3021, a stepless knob 3022 and an LED display screen 3023. The button 3021 is arranged on one side of the stepless knob 3022. The setting angle range of the stepless knob 3022 is 0-359.9°. The LED display screen 3023 is arranged on one side of the stepless knob 3022.

[0063] The button 3021 and the stepless knob 3022 cooperate to set the angle, and then the LED display screen 3023 is used to adjust and display it, so as to ensure the accurate setting of the angle.

[0064] See also Figure 2 The frequency multiplication module 403 performs a multiplication process on the frequency of the excitation signal from 400 Hz to 800 Hz;

[0065] By converting the frequency of the excitation signal, the research direction of the geomagnetic induction signal is increased and the simulation effect of the device is improved.

[0066] See also Figure 2 The model range of the magnetic sensor simulator body 1 includes TMU-0311A, TMU-0311B, TMU-0311C, and TMU-0311D. When inputting and outputting signals, the selected model can be determined according to the amplitudes of different input and output signals;

[0067] The input effective value of the TMU-0311A magnetic sensor simulator is 1.5V, and the maximum output effective value is 50mV;

[0068] The input effective value of the TMU-0311B magnetic sensor simulator is 1.7V, and the maximum output effective value is 150mV;

[0069] The input effective value of the TMU-0311C magnetic sensor simulator is 23.5V, and the maximum output effective value is 300mV;

[0070] The input effective value of the TMU-0311D magnetic sensor simulator is 1.7V, and the maximum output effective value is 150mV;

[0071] The corresponding model of the magnetic sensor simulator body 1 is selected according to the actual amplitude of the input and output signals, so as to improve the directional simulation range of the geomagnetic induction signal, thereby improving the simulation effect of the device on the geomagnetic induction signal.

[0072] See also Figure 2 The performance parameters of the optional models of the magnetic sensor simulator body 1 are determined as follows:

[0073] The input signal error of the magnetic sensor simulator model TMU-0311A is ±100mV, the maximum effective value output error is ±3.3mV, and when the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, the allowable error is 5°, and the time interval is 35us;

[0074] The input signal error of the magnetic sensor simulator model TMU-0311B is ±200mV, and the maximum effective value allowable error of the output is ±17.6mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us;

[0075] The input signal error of the magnetic sensor simulator model TMU-0311C is ±2.5V, and the maximum effective value output error is ±31.9mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us;

[0076] The input signal error of the magnetic sensor simulator model TMU-0311D is ±200mV, and the maximum effective value allowable error of the output is ±17.6mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us;

[0077] Signals are input according to the selected model of magnetic sensor simulator, and then the angle θ between the corresponding winding center line and the geomagnetic level is adjusted according to the input signal to ensure the maximum accuracy of the magnetic sensor simulator.

[0078] See also Figure 2 , the size of the magnetic sensor simulator body 1 selected as the model TMU-0311 magnetic sensor simulator is 160mm×100mm×70mm;

[0079] The size of the magnetic sensor simulator body 1 is controlled to ensure the compliance with the use of the magnetic sensor simulator body 1.

[0080] See also Figure 2 The optional socket models of the magnetic sensor simulator body 1 are as follows:

[0081] XS1 socket model 2PX24J10Q5B for TMU-0311A magnetic sensor simulator;

[0082] XS1 socket model YZ-7 for TMU-0311B magnetic sensor simulator;

[0083] XS1 socket model MS3470L12-10PI NII for TMU-0311C magnetic sensor simulator;

[0084] XS1 socket model MS3470L12-10PI NII for TMU-0311D magnetic sensor simulator;

[0085] Different types of magnetic sensor simulator main bodies 1 select different types of sockets to ensure that the magnetic sensor simulator main body 1 operates under corresponding potential signals.

[0086] When using:

[0087] First, the power module 301 controls the power supply of the simulation device to be connected and provides power to the entire system. At this time, the input +27VDC is converted into ±15VDC and +5VDC by the power module 301 to provide power to the system. Then the button 3021 and the stepless knob 3022 in the angle setting and display module 302 set the angle 0-359.9° and display it through the LED display screen 3023. Then the first CPU processing module 303 processes the data and transmits the data to the magnetic sensor simulator module 4 through the first RS232 communication module 304.

[0088] Then the magnetic sensor simulator module 4 receives the data of the magnetic sensor simulator control board 3 through the second RS232 communication module 401, and makes corresponding settings for the synchronous output module 404. At this time, the excitation signal is changed from 400 Hz to 800 Hz by the frequency multiplication module 403, and then the three-wire synchronous signal is output after being processed by the synchronous output module 404.

[0089] In this way, the entire device can complete the directional simulation of the geomagnetic induction signal.

[0090] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for simulating the direction of geomagnetic induction signals, comprising a magnetic sensor simulator body (1), characterized in that: The magnetic sensor simulator body (1) comprises a loading box (2), a magnetic sensor simulator control board (3) and a magnetic sensor simulator module (4), and the magnetic sensor simulator control board (3) and the magnetic sensor simulator module (4) are both arranged inside the loading box (2), the magnetic sensor simulator control board (3) comprises a power module (301), an angle setting and display module (302), a first CPU processing module (303) and a first RS232 communication module (304), and the magnetic sensor simulator module (4) comprises a second RS232 communication module (401), a second CPU processing module (402), a frequency multiplication module (403) and a synchronous output module (404); A power module (301), used for controlling the power connection of the simulation device and providing power to the entire system, is disposed on one side of the loading box (2); An angle setting and display module (302), used for setting the device to adjust the simulation direction of geomagnetic induction signal direction simulation and displaying the display result of the angle adjustment, and arranged on the upper surface of the loading box body (2); A first CPU processing module (303), used for processing data generated under the operation of the power module (301) and the angle setting and display module (302), is arranged inside the loading box body (2); A first RS232 communication module (304), used for transmitting data generated in the first CPU processing module (303) in the magnetic sensor simulator control board (3) to the second CPU processing module (402) in the magnetic sensor simulator module (4), is arranged on the other side of one side of the loading box body (2); A second RS232 communication module (401), used for receiving data sent by the first RS232 communication module (304), and arranged inside the loading box (2); A second CPU processing module (402), used for processing the control signal received from the first CPU processing module (303) and synchronizing data to the corresponding module settings, and arranged inside the loading box (2); A frequency multiplication module (403), used for controlling the excitation signal to perform frequency conversion, is arranged inside the loading box (2); The synchronous output module (404) is used to process the excitation signal processed by the frequency multiplication module (403) and output it as a three-wire synchronous signal, and is arranged inside the loading box body (2).

2. The device for simulating the direction of geomagnetic induction signals according to claim 1, characterized in that: The power supply module (301) is composed of multiple transformers, and the input power supply is +27VDC, and the output voltage is ±15VDC or +5VDC.

3. The device for simulating the direction of geomagnetic induction signals according to claim 1, characterized in that: The angle setting and display module (302) comprises a button (3021), a stepless rotary knob (3022) and an LED display screen (3023); the button (3021) is arranged on one side of the stepless rotary knob (3022); the setting angle range of the stepless rotary knob (3022) is 0-359.9°; and the LED display screen (3023) is arranged on one side of the stepless rotary knob (3022).

4. The device for simulating the direction of geomagnetic induction signals according to claim 1, characterized in that: The frequency doubling module (403) performs a frequency doubling process on the excitation signal from 400 Hz to 800 Hz.

5. The device for simulating the direction of geomagnetic induction signals according to claim 1, characterized in that: The selectable models of the magnetic sensor simulator body (1) include TMU-0311A, TMU-0311B, TMU-0311C, and TMU-0311D. When inputting and outputting signals, the selected model can be determined according to the amplitudes of different input and output signals. The input effective value of the TMU-0311A magnetic sensor simulator is 1.5V, and the maximum output effective value is 50mV; The input effective value of the TMU-0311B magnetic sensor simulator is 1.7V, and the maximum output effective value is 150mV; The input effective value of the TMU-0311C magnetic sensor simulator is 23.5V, and the maximum output effective value is 300mV; The input effective value of the TMU-0311D magnetic sensor simulator is 1.7V, and the maximum output effective value is 150mV; The performance parameters of the selectable models of the magnetic sensor simulator body (1) are determined as follows: The input signal error of the magnetic sensor simulator model TMU-0311A is ±100mV, the maximum effective value output error is ±3.3mV, and when the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, the allowable error is 5°, and the time interval is 35us; The input signal error of the magnetic sensor simulator model TMU-0311B is ±200mV, and the maximum effective value allowable error of the output is ±17.6mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us; The input signal error of the magnetic sensor simulator model TMU-0311C is ±2.5V, and the maximum effective value output error is ±31.9mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us; The input signal error of the magnetic sensor simulator model TMU-0311D is ±200mV, and the maximum effective value allowable error of the output is ±17.6mV. When the angle θ between the winding center line and the geomagnetic level is set, the output is θ±0.5°, the phase difference between the input 400Hz and the output 800Hz is 0°, and the allowable error is 5°, that is, the time interval is 35us.

6. The device for simulating the direction of geomagnetic induction signals according to claim 5, characterized in that: The magnetic sensor simulator body (1) is a magnetic sensor simulator of model TMU-0311, and its dimensions are 160 mm×100 mm×70 mm.

7. The device for simulating the direction of geomagnetic induction signals according to claim 5, characterized in that: The optional socket models of the magnetic sensor simulator body (1) are as follows: XS1 socket model 2PX24J10Q5B for TMU-0311A magnetic sensor simulator; XS1 socket model YZ-7 for TMU-0311B magnetic sensor simulator; XS1 socket model MS3470L12-10PINII of TMU-0311C magnetic sensor simulator; XS1 socket model MS3470L12-10PINII of TMU-0311D magnetic sensor simulator.

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