Detection device, magnetic reagent tube, detection method and computer equipment

Abstract

The invention provides a detection device, a magnetic reagent tube, a detection method and computer equipment, which can be used for detecting a magnetic field generated by the magnetic reagent tube in a low-temperature environment and automatically identifying and recording the access condition of a reagent according to detection data. The detection device is used for detecting an external magnetic field and comprises one or more detection points, Hall sensor units are arranged in the detection points and comprise a first Hall sensor group and a second Hall sensor group, the first Hall sensor group comprises one or more first Hall sensors, and the second Hall sensor group comprises one or more second Hall sensors. The first Hall sensor group is arranged in the central area of the detection point, the second Hall sensor group comprises one or more second Hall sensors, and the second Hall sensor group is arranged in the non-central area of the detection point.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a detection device, a magnetic reagent tube, a detection method and a computer device. Background Art

[0002] Smart reagent cabinets are a high-tech storage solution designed for chemical reagents and other hazardous materials in laboratories. These cabinets integrate intelligent identification and management systems that can automatically identify and record the storage and access of reagents, thereby reducing human errors and improving management efficiency. Although existing technologies can automatically identify and record the storage and access of reagents, the efficiency of existing technologies in automatically identifying and recording the storage and access of reagents will be reduced in low temperature environments. Summary of the invention

[0003] One advantage of the present application is that it provides a detection device and a magnetic reagent tube, wherein the detection device can detect the magnetic field generated by the magnetic reagent tube in a low-temperature environment, and automatically identify and record the storage and access status of the reagent based on the detection data.

[0004] Another advantage of the present application is to provide a detection method and a computer device, wherein it is possible to determine whether the external magnetic field is normal and / or determine whether the direction of the external magnetic field is correct based on the detected data.

[0005] Another advantage of the present application is to provide a detection device, a magnetic reagent tube, a detection method and a computer device, wherein in order to achieve the above advantages, no expensive materials or complex structures are required in the present application. Therefore, the solution provided by the present application can successfully and effectively solve the above problems, and not only provides a simple detection device, a magnetic reagent tube, a detection method and a computer device, but also increases the practicality and reliability of the detection device, the magnetic reagent tube, the detection method and the computer device.

[0006] Based on this, in order to achieve at least one of the above advantages or other advantages and purposes of the present application, the present application provides a detection device for detecting an external magnetic field, the detection device comprising:

[0007] One or more detection points, each detection point is provided with a Hall sensor unit, the Hall sensor unit includes a first Hall sensor group and a second Hall sensor group, the first Hall sensor group includes one or more first Hall sensors, the first Hall sensor group is arranged in the central area of ​​the detection point, the second Hall sensor group includes one or more second Hall sensors, the second Hall sensor group is arranged in the non-central area of ​​the detection point.

[0008] With such a configuration, the external magnetic field can be detected with the help of the Hall sensor unit, and the first Hall sensor group is set in the central area of ​​the detection point to obtain high-precision magnetic field center information, and the second Hall sensor group is set in the non-central area to detect the edge and distribution of the magnetic field, thereby detecting more comprehensive and accurate magnetic field distribution information. In this way, not only the detection accuracy is improved, but also the reliability and robustness of the detection device are enhanced through redundant design, and comprehensive detection of three-dimensional magnetic fields is achieved. The number and position of sensors can be flexibly adjusted according to specific needs, thereby improving the anti-interference ability of the detection device and improving its adaptability to diverse detection needs.

[0009] According to one embodiment of the present application, the first Hall sensor is a unipolar sensor, and the second Hall sensor is a bipolar sensor.

[0010] In this arrangement, a unipolar sensor can only detect a magnetic field in a single magnetic field direction, while a bipolar sensor can detect magnetic fields in two different magnetic field directions. The difference in sensor types between the first Hall sensor and the second Hall sensor makes it possible to determine whether the direction of the magnetic field detected by the detection device is in a positive state based on the magnetic field data detected by the first Hall sensor and the second Hall sensor, thereby preventing the magnetic field to be detected at other detection points from interfering with the accuracy of the detection data of this detection point.

[0011] According to one embodiment of the present application, the detection device further includes a processor for determining whether the external magnetic field is normal and / or determining whether the direction of the external magnetic field is in a positive state.

[0012] With such a configuration, the processor can determine whether the external magnetic field is normal and / or determine whether the direction of the external magnetic field is in a positive state based on the magnetic field data detected by the first Hall sensor group and the second Hall sensor group, thereby preventing the magnetic field to be detected at other detection points from interfering with the accuracy of the detection data of this detection point.

[0013] According to one embodiment of the present application, the detection device further includes a temperature sensor for detecting the external temperature and transmitting the detected temperature data to the processor, and the processor performs temperature compensation on the magnetic field data according to the temperature data.

[0014] With such a configuration, the magnetic field strength changes due to the influence of the ambient temperature, so the magnetic field data detected by the first Hall sensor group and the second Hall sensor group will change with the change of the external temperature. Compared with the solution without setting the temperature sensor, this solution detects the external temperature through the set temperature sensor and transmits the detected temperature data to the processor. The processor performs temperature compensation on the magnetic field data according to the temperature data, thereby avoiding the influence of the external temperature on the magnetic field and reducing the accuracy of the magnetic field data detected by the first Hall sensor group and the second Hall sensor group.

[0015] According to another aspect of the present application, the present application further provides a magnetic reagent tube, which matches the above-mentioned detection device, and the magnetic reagent tube includes:

[0016] A magnetic component and a tube body, wherein the magnetic component is embedded in the bottom of the tube body or arranged on the surface of the tube body.

[0017] With such arrangement, the Hall sensor unit in the above detection device detects the magnetic field generated by the magnetic test tube and processes the detected magnetic field data, thereby achieving the purpose of automatically identifying the reagent and recording the storage and access status of the reagent.

[0018] According to one embodiment of the present application, the magnetic component is a magnet embedded in the bottom of the tube body or a magnetic label attached to the surface of the tube body.

[0019] According to another aspect of the present application, the present application further provides a detection method for detecting whether an external magnetic field is normal, the detection method comprising the following steps:

[0020] S1, obtain central magnetic field data, side magnetic field data and temperature data;

[0021] S2. performing temperature compensation on the central magnetic field data and the side magnetic field data according to the temperature data;

[0022] S3, judging whether the central magnetic field data is greater than the side magnetic field data, if so, executing S4, if not, judging that the direction of the magnetic field to be measured is in a reverse state;

[0023] S4. Determine whether the central magnetic field data is within a preset magnetic field strength range. If so, determine that the external magnetic field is normal and the central magnetic field data is valid. If not, determine that the external magnetic field is abnormal and the central magnetic field data is invalid.

[0024] With such configuration, it is possible to detect whether the external magnetic field is normal and / or determine whether the direction of the external magnetic field is in a normal state based on the detected data.

[0025] According to an embodiment of the present application, when the number of the first Hall sensors in the first Hall sensor group is greater than 1, the following steps are further included between step S2 and step S3:

[0026] S21. Determine whether the first Hall sensor is damaged and whether the central magnetic field data is abnormal based on the central magnetic field data.

[0027] Compared with the scheme without step S21, this scheme can compare the central magnetic field data detected by each first Hall sensor by setting step S21, so as to determine whether the first Hall sensor is damaged and whether each central magnetic field data is abnormal.

[0028] According to one embodiment of the present application, the S21 is specifically:

[0029] S211, comparing whether the differences between the central magnetic field data are within an acceptable range, if so, executing S3, if not, executing S212;

[0030] S212, comparing whether the differences between the central magnetic field data are too large, if so, determining that there is a damaged first Hall sensor in the first Hall sensor group, discarding the unreasonable central magnetic field data, and executing S3, if not, determining that the data of each central magnetic field data is abnormal.

[0031] According to another aspect of the present application, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned detection method when executing the computer program.

[0032] With such a configuration, the computer program has flexibility and adaptability, so that the execution steps can be adjusted according to different inputs and conditions, thereby adapting to the ever-changing needs and technical environment, and maintaining the advancement and practicality of the computer program. In addition, the architecture of the computer device allows the realization of multiple functions, so that the program in the memory can contain multiple functional modules, and the computer program can be executed by the processor to meet different application needs, thereby improving the function of the computer program and enhancing the integration of the computer device.

[0033] Beneficial effect: The detection device detects the central area and non-central area of ​​the magnetic field in the detection point respectively through the first Hall sensor group and the second Hall sensor group arranged in the detection point, and processes the detected central magnetic field data and side magnetic field data, so as to analyze whether the magnetic field detected by the detection point is normal and / or determine whether the direction of the external magnetic field is in a positive state. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A three-dimensional schematic diagram of a detection device provided in one embodiment of the present application;

[0036] Figure 2 A schematic diagram of the structure of a Hall sensor unit in a detection device according to the above embodiment of the present application is shown;

[0037] Figure 3 A schematic diagram of a detection method provided in another embodiment of the present application;

[0038] Figure 4 A schematic structural diagram of a magnetic reagent tube provided in another embodiment of the present application;

[0039] Figure 5 A schematic structural diagram of another magnetic reagent tube provided in another embodiment of the present application;

[0040] Figure 6 A schematic flow chart of a detection method provided for other embodiments of the present application.

[0041] Figure numerals: 10, detection device; 11, detection point; 12, Hall sensor unit; 121, first Hall sensor group; 1211, first Hall sensor; 122, second Hall sensor group; 1221, second Hall sensor; 20, magnetic reagent tube; 21, magnetic component; 22, tube body. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0043] Considering that the existing intelligent reagent cabinet can automatically identify and record the access status of reagents, its efficiency of automatically identifying and recording the access status of reagents will be reduced in a low temperature environment. In order to solve this problem, the present application provides a detection device, a magnetic reagent tube, a detection method and a computer device, which can detect the magnetic field generated by the magnetic reagent tube in a low temperature environment, and automatically identify and record the access status of the reagent based on the detection data.

[0044] For details, please refer to the attached Figure 1 to Figure 2 An embodiment of the present application provides a detection device 10 for detecting an external magnetic field. The detection device 10 includes: one or more detection points 11, and a Hall sensor unit 12 is provided in each detection point 11.

[0045] More specifically, the Hall sensor unit 12 includes a first Hall sensor group 121 and a second Hall sensor group 122, the first Hall sensor group 121 includes one or more first Hall sensors 1211, the first Hall sensor group 121 is arranged in the central area of ​​the detection point 11, the second Hall sensor group 122 includes one or more second Hall sensors 1221, and the second Hall sensor group 122 is arranged in the non-central area of ​​the detection point 11.

[0046] It should be noted that the external magnetic field can be detected with the help of the Hall sensor unit 12, and by setting the first Hall sensor group 121 in the central area of ​​the detection point 11 to obtain high-precision magnetic field center information, and setting the second Hall sensor group 122 in the non-central area to detect the edge and distribution of the magnetic field, so as to detect more comprehensive and accurate magnetic field distribution information. In this way, not only the detection accuracy is improved, but also the reliability and robustness of the detection device 10 are enhanced through redundant design, and the comprehensive detection of the three-dimensional magnetic field is realized. The number and position of the sensors can be flexibly adjusted according to specific needs, thereby improving the anti-interference ability of the detection device 10 and improving its adaptability to diversified detection needs.

[0047] In particular, the Hall sensor is a magnetic field detection device 10 based on the Hall effect, which can detect the magnetic field strength of the magnetic field and convert it into an electrical signal output. The Hall sensor senses the magnetic field with the help of the internal Hall element. When the magnetic field acts on the Hall element, a voltage difference is generated at both ends of the element, and the voltage difference is proportional to the magnetic field strength of the magnetic field. Due to the small size, fast response speed, high measurement accuracy and strong environmental adaptability of the Hall sensor, the Hall sensor is widely used in various industrial or electronic fields, such as position detection, speed measurement, current measurement and brushless motor control.

[0048] It is worth noting that the first Hall sensor 1211 is a unipolar sensor, and the second Hall sensor 1221 is a bipolar sensor. Hall sensors can be divided into two types: unipolar and bipolar according to their ability to respond to magnetic field polarity. Unipolar Hall sensors can only detect one magnetic field polarity (usually the South Pole or the North Pole) and output a signal when the polarity is detected. Bipolar Hall sensors can detect both positive and negative magnetic field polarities at the same time, and output corresponding voltage signals according to the change in the polarity of the magnetic field. Unipolar sensors are suitable for applications that need to detect a single magnetic field direction, while bipolar sensors are suitable for complex application scenarios that need to accurately judge and respond to changes in magnetic field polarity, such as motor control, position detection, and speed measurement.

[0049] It should be noted that the difference in sensor types between the first Hall sensor 1211 and the second Hall sensor 1221 makes it possible to determine whether the direction of the magnetic field detected by the detection device 10 is in the upright state based on the magnetic field data detected by the first Hall sensor 1211 and the second Hall sensor 1221, thereby preventing the magnetic field to be detected by other detection points 11 from interfering with the accuracy of the detection data of the current detection point 11. Specifically, when the direction of the external magnetic field is in the reverse state, the first Hall sensor 1211 cannot detect the magnetic field because the direction of the external magnetic field is in the reverse state, and the first Hall sensor 1211 is a unipolar sensor, so the central magnetic field data is zero, and the second Hall sensor 1221 is a bipolar sensor, which can detect the magnetic field in the reverse state, so the side magnetic field data is not zero, so when the direction of the external magnetic field is in the reverse state, the side magnetic field data is greater than the central magnetic field data; when the direction of the external magnetic field is in the normal state, the data detected by the first Hall sensor 1211 and the second Hall sensor 1221 are not zero, and the first Hall sensor 1211 is set in the central area of ​​the detection point 11, that is, the central area of ​​the magnetic field, and the magnetic field strength of the central area of ​​the magnetic field is greater than the magnetic field strength of the non-central area of ​​the magnetic field, so when the direction of the external magnetic field is in the normal state, the side magnetic field data is less than the central magnetic field data. Therefore, the size between the central magnetic field data and the side magnetic field data can be compared to determine whether the direction of the external magnetic field is in the normal state.

[0050] It is worth noting that the detection device 10 further includes a processor for determining whether the external magnetic field is normal and / or determining whether the direction of the external magnetic field is in a positive state. The processor can determine whether the external magnetic field is normal and / or determine whether the direction of the external magnetic field is in a positive state based on the magnetic field data detected by the first Hall sensor group 121 and the second Hall sensor group 122, thereby preventing the occurrence of a situation where the magnetic field to be detected by other detection points 11 interferes with the accuracy of the detection data of the detection point 11.

[0051] It should be noted that the relationship between magnetic field strength and temperature mainly depends on the magnetic properties of the material, especially near the Curie temperature, which refers to the critical temperature at which the material loses its ferromagnetism at high temperatures. When the temperature is lower than the Curie temperature, the magnetic field strength of the material will gradually weaken as the temperature increases. In a low temperature environment, as the temperature decreases, the thermal motion inside the material will decrease, and the arrangement of the magnetic domains and magnetic moments inside the material will become more orderly, thereby enhancing the magnetic field strength. This phenomenon is particularly evident in ferromagnetic and antiferromagnetic materials. For example, in ferromagnetic materials, lower temperatures make the boundaries of magnetic domains more stable and the magnetic moments easier to align, thereby enhancing the magnetic field strength; while in antiferromagnetic materials, lower temperatures reduce thermal disturbances, making the antiferromagnetic order more significant, which in turn affects the magnetic field response. That is, low temperatures usually enhance the magnetic properties of the material, causing the magnetic field strength to increase as the temperature decreases, and when the temperature reaches or exceeds the Curie temperature, the ferromagnetism of the material disappears, the magnetic field strength drops sharply, or even completely loses, that is, the magnetic field strength is generally negatively correlated with the temperature.

[0052] It is worth noting that in order to solve the above-mentioned influence of temperature on magnetic field strength, the detection device 10 also includes a temperature sensor for detecting the external temperature and transmitting the detected temperature data to the processor, and the processor performs temperature compensation on the magnetic field data according to the temperature data. The magnetic field strength changes due to the influence of the ambient temperature, so the magnetic field data detected by the first Hall sensor group 121 and the second Hall sensor group 122 will change with the change of the external temperature. Compared with the scheme without setting the temperature sensor, this scheme detects the external temperature through the set temperature sensor and transmits the detected temperature data to the processor, and the processor performs temperature compensation on the magnetic field data according to the temperature data, thereby avoiding the influence of the external temperature on the magnetic field and reducing the accuracy of the magnetic field data detected by the first Hall sensor group 121 and the second Hall sensor group 122.

[0053] In another embodiment of the present application, Figure 4 and Figure 5As shown, a magnetic reagent tube 20 is provided, and the magnetic reagent tube 20 matches the above-mentioned detection device 10, and the magnetic reagent tube 20 includes: a magnetic component 21 and a tube body 22, and the magnetic component 21 is embedded in the bottom of the tube body 22 or arranged on the surface of the tube body 22. The magnetic component 21 includes but is not limited to a magnet embedded in the bottom of the tube body 22 or a magnetic label attached to the surface of the tube body 22. The Hall sensor unit 12 in the detection device 10 provided in the above embodiment detects the magnetic field generated by the magnetic test tube, and processes according to the detected magnetic field data, thereby achieving the purpose of automatically identifying the reagent and recording the storage and access status of the reagent.

[0054] Another embodiment of the present application also provides a detection method, such as Figure 3 As shown, it is used to detect whether the external magnetic field is normal. The detection method includes the following steps:

[0055] S1, obtain central magnetic field data, side magnetic field data and temperature data;

[0056] S2. performing temperature compensation on the central magnetic field data and the side magnetic field data according to the temperature data;

[0057] S3, judging whether the central magnetic field data is greater than the side magnetic field data, if so, executing S4, if not, judging that the direction of the magnetic field to be measured is in a reverse state;

[0058] S4. Determine whether the central magnetic field data is within a preset magnetic field strength range. If so, determine that the external magnetic field is normal and the central magnetic field data is valid. If not, determine that the external magnetic field is abnormal and the central magnetic field data is invalid.

[0059] It should be noted that, whether the external magnetic field is normal and / or whether the direction of the external magnetic field is in a normal state can be detected based on the detected data.

[0060] It is worth noting that Figure 6 As shown, when the number of the first Hall sensors 1211 in the first Hall sensor group 121 is greater than 1, the following steps are further included between step S2 and step S3:

[0061] S21. Determine whether the first Hall sensor 1211 is damaged and whether the central magnetic field data is abnormal based on the central magnetic field data.

[0062] It is worth noting that the S21 is specifically as follows: S211, comparing whether the differences between the central magnetic field data are within an acceptable range, if so, executing S3, if not, executing S212;

[0063] S212, compare whether the differences between the central magnetic field data are too large. If so, determine that there is a damaged first Hall sensor 1211 in the first Hall sensor group 121, discard the unreasonable central magnetic field data, and execute S3. If not, determine that the data of each central magnetic field data is abnormal.

[0064] It should be noted that compared with the solution without setting step S21, this solution can compare the central magnetic field data detected by each first Hall sensor 1211 by setting step S21, so as to determine whether the first Hall sensor 1211 is damaged and whether each central magnetic field data is abnormal.

[0065] In other embodiments of the present application, a computer program is provided, and running the computer program can execute the above-mentioned detection method.

[0066] Other embodiments of the present application further provide a storage device, wherein the storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the above-mentioned detection method.

[0067] It is worth noting that the program stored in the storage medium can automatically perform complex tasks, reduce human intervention, thereby improving overall efficiency and ensuring the reliability and trustworthiness of operations. In addition, the program is repeatable and extensible, so that the same program can be repeatedly executed in different environments and times, and is easy to expand to meet new needs, enhancing the adaptability and flexibility of the program. In addition, running the program can greatly optimize resource utilization and reduce manpower and error costs by automating the processing of large amounts of data and tasks. Finally, the program is also traceable and secure, and can ensure the auditability and security of operations by recording and tracking every step of the program execution, reducing the risks brought by human operations.

[0068] In other embodiments of the present application, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned detection method when executing the computer program.

[0069] It is worth noting that the computer program is flexible and adaptable, so that the execution steps can be adjusted according to different inputs and conditions, so as to adapt to the ever-changing needs and technical environment, and maintain the advancement and practicality of the computer program. In addition, the architecture of the computer device allows the realization of multiple functions, so that the program in the memory can contain multiple functional modules, and the computer program can be executed by the processor to meet different application needs, thereby improving the function of the computer program and enhancing the integration of the computer device.

[0070] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0071] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, device, product or equipment that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0072] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0074] The technical features of the above embodiments can be combined without changing the basic principles of the present application. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A detection device for detecting an external magnetic field, characterized in that: The detection device comprises: One or more detection points, each detection point is provided with a Hall sensor unit, the Hall sensor unit includes a first Hall sensor group and a second Hall sensor group, the first Hall sensor group includes one or more first Hall sensors, the first Hall sensor group is arranged in the central area of ​​the detection point, the second Hall sensor group includes one or more second Hall sensors, the second Hall sensor group is arranged in the non-central area of ​​the detection point.

2. The detection device according to claim 1, characterized in that: The first Hall sensor is a unipolar sensor, and the second Hall sensor is a bipolar sensor.

3. The detection device according to claim 1, characterized in that: The detection device also includes a processor for determining whether the external magnetic field is normal and / or determining whether the direction of the external magnetic field is in a positive state.

4. The detection device according to claim 3, characterized in that: The detection device also includes a temperature sensor for detecting the external temperature and transmitting the detected temperature data to the processor, and the processor performs temperature compensation on the magnetic field data detected by the first Hall sensor and / or the second Hall sensor according to the temperature data.

5. A magnetic reagent tube, characterized in that: The magnetic reagent tube matches the detection device as described in any one of claims 1 to 4, and the magnetic reagent tube includes a magnetic component and a tube body, and the magnetic component is embedded in the bottom of the tube body or arranged on the surface of the tube body.

6. The magnetic reagent tube according to claim 5, characterized in that: The magnetic component is a magnet embedded in the bottom of the tube or a magnetic label attached to the surface of the tube.

7. A detection method for detecting whether an external magnetic field is normal, characterized in that: The detection method comprises the following steps: S1, obtain central magnetic field data, side magnetic field data and temperature data; S2. performing temperature compensation on the central magnetic field data and the side magnetic field data according to the temperature data; S3, judging whether the central magnetic field data is greater than the side magnetic field data, if so, executing S4, if not, judging that the direction of the magnetic field to be measured is in a reverse state; S4. Determine whether the central magnetic field data is within a preset magnetic field strength range. If so, determine that the external magnetic field is normal and the central magnetic field data is valid. If not, determine that the external magnetic field is abnormal and the central magnetic field data is invalid.

8. The detection method according to claim 7, characterized in that: When the number of the first Hall sensors in the first Hall sensor group is greater than 1, the following steps are further included between step S2 and step S3: S21. Determine whether the first Hall sensor is damaged and whether the central magnetic field data is abnormal based on the central magnetic field data.

9. The detection method according to claim 8, characterized in that: The S21 is specifically: S211, comparing whether the differences between the central magnetic field data are within an acceptable range, if so, executing S3, if not, executing S212; S212, comparing whether the differences between the central magnetic field data are too large, if so, determining that there is a damaged first Hall sensor in the first Hall sensor group, discarding the unreasonable central magnetic field data, and executing S3, if not, determining that the data of each central magnetic field data is abnormal.

10. A computer device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the detection method according to any one of claims 7 to 9 when executing the computer program.

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