CN220207838U - Three-component data measuring device for magnetic field in three-dimensional space - Google Patents
Three-component data measuring device for magnetic field in three-dimensional space Download PDFInfo
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- CN220207838U CN220207838U CN202321589372.3U CN202321589372U CN220207838U CN 220207838 U CN220207838 U CN 220207838U CN 202321589372 U CN202321589372 U CN 202321589372U CN 220207838 U CN220207838 U CN 220207838U
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Abstract
The utility model relates to a three-component data measuring device of a magnetic field in a three-dimensional space, which comprises a controller module, a power module, a sensor module, a communication module, a 485 communication module, a program downloading module and a 485 concentrator, wherein the controller module is connected with the power module; the controller module is used as a control core, the sensor module provides 3 data acquisition channels for acquiring output signals generated by an external magnetic field in real time, SPI communication is adopted between the controller module and the sensor module through the communication module, the measured magnetic field digital quantity is read into the controller module, and finally the 485 communication module uploads data to an upper computer through a 485 concentrator. The measuring device has good common mode interference resistance and is suitable for long-distance transmission. The controller parameters can be automatically adjusted to be optimal under a complex environment, the optimal acquisition rate is determined, and the rapid and accurate acquisition of the magnetic field data is realized. Making the sensor more suitable for magnetic field measurements in complex environments.
Description
Technical Field
The utility model belongs to the technical field of magnetic field measurement, and particularly relates to a device for measuring three-component data of a magnetic field in a three-dimensional space, which can be applied to three-component data measurement in complex environments with magnetic abnormal signals such as underground, indoor space and the like.
Background
Currently, analog sensors such as fluxgates, HMC1053 and the like are commonly used in magnetic field measurement, have the advantages of good robustness and high accuracy in measurement, and are already used in large-scale commerce.
However, the sensor needs to be subjected to amplification and analog-to-digital conversion in the data processing stage, the sensor has a complex structure, high cost and inconvenient operation, three-component data cannot be obtained simultaneously, and the defect of large measurement error exists in the process of obtaining the data for multiple times.
Disclosure of Invention
The utility model aims to provide a device for measuring three-component data of a magnetic field in a three-dimensional space, which aims to solve the problems that the existing sensor is inconvenient to operate, cannot acquire the three-component data simultaneously and has large error in acquiring the data for multiple times.
The utility model aims at realizing the following technical scheme:
the three-component data measuring device of the magnetic field in the three-dimensional space is composed of a controller module 1, a power module 2, a sensor module 3, a communication module 4, a 485 communication module 5, a program downloading module 6 and a 485 concentrator 7;
the controller module 1 is respectively connected with the power module 2, the communication module 4 and the program downloading module 6; the sensor module 3 communicates with the controller module 1 through the communication module 4, the sensor module 3 communicates with the 485 communication module 5 through the 485 concentrator 7, and the 485 communication module 5 communicates with the upper computer; the power module 2 is connected with the sensor module 3, and the power module 2 is also connected with an external +12V lithium battery; the program downloading module 6 is used for downloading data to the controller module 1.
Further, the sensor module 3 can provide 3 data acquisition channels to acquire output signals generated by external magnetic fields in real time.
Furthermore, the sensor module 3 is composed of three magnetic induction sensors and a control chip, the magnetic induction sensors comprise a high-permeability magnetic core, coils are wound on the outer surfaces of the magnetic induction sensors, and the magnetic induction sensors and the control chip are combined to form a basic resistance-inductance circuit for driving the magnetic induction sensors and are used for collecting three-component data generated by an external magnetic field.
Further, SPI communication is adopted between the controller module 1 and the sensor module 3 through the communication module 4, and the digital quantity of the magnetic field measured by the sensor module 3 is read into the controller module 1.
Further, the 485 concentrator 7 transmits data to an upper computer by adopting 485 bus differential signals.
Further, the power module 2 includes an LM7805 chip capable of converting +12v to +5v for supplying power to the sensor module 3, and an MS1117 chip capable of converting +5v to 3.3V for supplying power to the controller module 1.
Compared with the prior art, the utility model has the beneficial effects that:
the device for measuring the three-component data of the magnetic field in the three-dimensional space adopts a 485 bus data communication mode, has a simple structure, can measure the three-component data of the magnetic field in a small space, simplifies circuit design, can effectively improve data acquisition efficiency, and reduces measurement errors; the measuring device has good common mode interference resistance and is suitable for long-distance transmission.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a device for measuring three-component data of a magnetic field in a small space according to the present utility model;
FIG. 2 is a flow chart of the operation of the three-component data measuring device of the magnetic field in three-dimensional space of the present utility model.
In the figure, a controller module 2, a power module 3, a sensor module 4, a communication module 5.485, a communication module 6 and a program downloading module 7.485 are arranged.
Detailed Description
The utility model is further illustrated by the following examples:
the utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As shown in FIG. 1, the three-component data measuring device of the magnetic field in the three-dimensional space is composed of a controller module 1, a power supply module 2, a sensor module 3, a communication module 4, a 485 communication module 5, a program downloading module 6 and a 485 concentrator 7.
The controller module 1 is respectively connected with the power module 2, the communication module 4 and the program downloading module 6. The sensor module 3 communicates with the controller module 1 through the communication module 4, the sensor module 3 communicates with the 485 communication module 5 through the 485 concentrator 7, and the sensor module 3 also communicates with an upper computer. The power module 2 is connected with the sensor module 3, and the power module 2 is also connected with an external +12V lithium battery.
The utility model relates to a magnetic field three-component data measuring device in a three-dimensional space, which takes a controller module 1 as a control core, a sensor module 3 provides 3 data acquisition channels for acquiring output signals generated by an external magnetic field in real time, SPI communication is adopted between the controller module 1 and the sensor module 3 through a communication module 4, the magnetic field digital quantity measured by the sensor module 3 is read into the controller module 1, and data is uploaded to an upper computer through a 485 communication module 5 by a 485 concentrator 7.
The controller module 1 adopts STM32F103C8T6 with larger memory capacity, the communication module 4 and the sensor module 3 adopt SPI communication, the measured magnetic field digital quantity is read into the controller module 1, and then the communication is carried out with an upper computer through the serial port and 485 communication module 5.
The sensor module 3 measures and identifies magnetic field data by utilizing the characteristics of the sensor module, wherein the sensor module is RM3100, and comprises three magnetic-Inductive (MI) sensors and a special control chip. The MI sensor is made by winding a coil outside a high-permeability magnetic core, and the sensor is combined with a control chip to form a basic resistance-inductance (RL) circuit for driving the MI sensor, so as to collect three-component data generated by an external magnetic field.
The program downloading module 6 is used for downloading data to the controller module 1.
The power module 2 comprises an LM7805 chip, an MS1117 chip and a controller module 1, wherein the LM7805 chip can convert +12V to +5V which is connected with the power module to supply power to the sensor module 3, and the MS1117 chip can convert +5V to 3.3V which is connected with the power module to supply power to the controller module 1.
The 485 communication module 5 establishes communication between the controller module 1 and the upper computer through the 485 concentrator, and directly transmits data to the upper computer, so that the data acquisition efficiency is improved.
The utility model relates to a magnetic field three-component data measuring device in a three-dimensional space, which uses a sensor acquisition chip and is mounted on the same SPI bus with a controller module 1 to realize synchronous acquisition of magnetic field three-component data; the controller module 1 can adjust the data acquisition speed according to the data transmission speed and the upper computer feedback information, can automatically adjust the controller parameters to be optimal under the complex environment, determine the optimal acquisition rate, realize the rapid and accurate acquisition of the magnetic field data, and make the sensor more suitable for magnetic field measurement in the complex environment.
As shown in fig. 2, the working process of the magnetic field three-component data measuring device in the three-dimensional space of the utility model comprises the following steps:
a. the signal sources of the collected data are: when the external magnetic field exists, current is generated around the sensor, the magnetic induction sensor inside the sensor can vibrate, the period of vibration changes along with the size of the inductor, and therefore the period of vibration also changes along with the change of the external magnetic field, magnetic field data are collected, and three magnetic induction sensors exist inside the sensor, so that synchronous collection of three components can be achieved.
b. In the step a, after magnetic field data are collected through a sensor RM3100, the data are transmitted to an upper computer through a 485 bus through a 485 hub, the 485 bus is generally used for master-slave communication, and generally slave equipment is mounted on two wires 485-A and 485-B to finish communication.
c. In the step b, nine three-component data measuring devices of the magnetic field in nine three-dimensional spaces are assembled into an array through wires, nine groups of data of nine measuring points can be collected at one time, and synchronous collection of multiple groups of data in a short time is achieved. In addition, the 485 bus has the advantage of simple connection, so that the design and construction of the magnetic sensor array have higher flexibility, the design of an analog signal switching circuit is required to be considered in the traditional array design, and the 485 bus transmission mode enables the circuit design to be simpler and more convenient.
Through comparative analysis, the measuring device adopts X, Y and Z three-component data to synchronously acquire, can acquire data of nine measuring points at the same time, can acquire multiple groups of data faster, and transmits the data to an upper computer in real time through a 485 bus to perform further tensor solving and data processing of other contents, and can acquire multiple groups of magnetic source three-component data in the shortest time under the conditions of large magnetic source position change and rapid magnetic field change.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (6)
1. A three-component data measuring device of a magnetic field in a three-dimensional space is characterized in that: the intelligent control system comprises a controller module (1), a power supply module (2), a sensor module (3), a communication module (4), a 485 communication module (5), a program downloading module (6) and a 485 concentrator (7);
the controller module (1) is respectively connected with the power supply module (2), the communication module (4) and the program downloading module (6); the sensor module (3) is communicated with the controller module (1) through the communication module (4), the sensor module (3) is communicated with the 485 communication module (5) through the 485 concentrator (7), and the 485 communication module (5) is communicated with the upper computer; the power module (2) is connected with the sensor module (3), and the power module (2) is also connected with an external +12V lithium battery; the program downloading module (6) is used for downloading data to the controller module (1).
2. The three-dimensional space magnetic field three-component data measuring device according to claim 1, wherein: the sensor module (3) can provide 3 data acquisition channels to acquire output signals generated by an external magnetic field in real time.
3. The apparatus for measuring three-component data of a magnetic field in a three-dimensional space according to claim 2, wherein: the sensor module (3) is composed of three magnetic induction sensors and a control chip, the magnetic induction sensors comprise a high-permeability magnetic core, coils are wound on the outer surfaces of the magnetic induction sensors, and the magnetic induction sensors and the control chip are combined to form a basic resistance-inductance circuit for driving the magnetic induction sensors and are used for collecting three-component data generated by an external magnetic field.
4. The three-dimensional space magnetic field three-component data measuring device according to claim 1, wherein: the controller module (1) and the sensor module (3) adopt SPI communication through the communication module (4), and the magnetic field digital quantity measured by the sensor module (3) is read into the controller module (1).
5. The three-dimensional space magnetic field three-component data measuring device according to claim 1, wherein: and the 485 concentrator (7) transmits data to the upper computer by adopting 485 bus differential signals.
6. The three-dimensional space magnetic field three-component data measuring device according to claim 1, wherein: the power module (2) comprises an LM7805 chip, an MS1117 chip and a controller module (1), wherein +12V to +5V of the power module can be connected to the LM7805 chip for supplying power to the sensor module (3), and the MS1117 chip can be used for converting +5V of the power module into 3.3V of the power module for supplying power to the controller module (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589372.3U CN220207838U (en) | 2023-06-21 | 2023-06-21 | Three-component data measuring device for magnetic field in three-dimensional space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589372.3U CN220207838U (en) | 2023-06-21 | 2023-06-21 | Three-component data measuring device for magnetic field in three-dimensional space |
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| Publication Number | Publication Date |
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| CN220207838U true CN220207838U (en) | 2023-12-19 |
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| CN202321589372.3U Active CN220207838U (en) | 2023-06-21 | 2023-06-21 | Three-component data measuring device for magnetic field in three-dimensional space |
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| CN (1) | CN220207838U (en) |
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- 2023-06-21 CN CN202321589372.3U patent/CN220207838U/en active Active
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