Acceleration detection device, detection system, electronic equipment and acceleration detection method

Abstract

The present application discloses an acceleration detection device, a detection system, an electronic device and an acceleration detection method, which belong to the field of acceleration detection technology. The acceleration detection device includes: a detection arm, including a fixed section, a deformation section and a swing section, the first end of the fixed section is connected to the first end of the swing section through the deformation section, and the swing section swings relative to the fixed section through the deformation of the deformation section; a mass block is arranged at the second end of the swing section, and the mass block moves relative to the fixed section under the action of inertia to drive the swing section to swing relative to the fixed section; a deformation detection module is arranged in the deformation section, and the deformation detection module deforms with the deformation of the deformation section; a temperature compensation module is arranged in at least one of the fixed section and the swing section, and the temperature compensation module deforms with the temperature change, and the temperature deformation coefficient of the temperature compensation module is the same as the temperature deformation coefficient of the deformation detection module to compensate for the deformation of the deformation detection module due to temperature change.

Description

Technical Field

[0001] The present application belongs to the technical field of acceleration detection, and specifically relates to an acceleration detection device, a detection system, an electronic device and an acceleration detection method. Background Art

[0002] At present, inertial measurement units (IMUs) are widely used in electronic devices, and most IMUs include accelerometers for detecting acceleration. Accelerometers usually use a capacitive detection structure to calculate acceleration by the change in capacitance between metal plates. However, when the temperature inside the electronic device changes, the metal plates of the accelerometer may deform, which makes the capacitance change between the metal plates not only related to acceleration, but also to temperature, thus affecting the accuracy of acceleration detection. Summary of the invention

[0003] The present application aims to provide an acceleration detection device, a detection system, an electronic device and an acceleration detection method, which at least solve the problem in the prior art that the acceleration detection accuracy of the capacitive accelerometer is low due to temperature changes.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides an acceleration detection device, comprising:

[0006] The detection arm comprises a fixed section, a deformation section and a swing section, wherein the first end of the fixed section is connected to the first end of the swing section through the deformation section, and the swing section swings relative to the fixed section through the deformation of the deformation section;

[0007] A mass block is disposed at the second end of the swing section, and the mass block moves relative to the fixed section under the action of inertia to drive the swing section to swing relative to the fixed section;

[0008] A deformation detection module is arranged at the deformation section, and the deformation detection module is deformed along with the deformation of the deformation section;

[0009] A temperature compensation module is arranged in at least one of the fixed section and the swing section. The temperature compensation module deforms with temperature changes. The temperature deformation coefficient of the temperature compensation module is the same as the temperature deformation coefficient of the deformation detection module to compensate for the deformation of the deformation detection module caused by temperature changes.

[0010] In a second aspect, an embodiment of the present application proposes an acceleration detection system, comprising an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer, wherein at least one of the X-axis accelerometer, the Y-axis accelerometer and the Z-axis accelerometer adopts the acceleration detection device described in the first aspect.

[0011] In a third aspect, an embodiment of the present application proposes an electronic device, comprising the acceleration detection system described in the second aspect.

[0012] In an embodiment of the present application, by setting a deformation detection module and a temperature compensation module with the same temperature deformation coefficient, the deformation amount of the deformation detection module caused by temperature change can be obtained through the temperature compensation module, thereby performing temperature compensation on the deformation amount detected by the deformation detection module. In this way, the detection accuracy of the acceleration detection device can be improved.

[0013] In a fourth aspect, an embodiment of the present application provides an acceleration detection method, which is applied to an electronic device, wherein the electronic device includes the acceleration detection device according to the first aspect, and the method includes:

[0014] Acquire a first analog signal output by the deformation detection device and a second analog signal output by the temperature compensation device;

[0015] The acceleration of the electronic device is calculated according to the first analog signal and the second analog signal.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of the structure of an acceleration detection device provided in an embodiment of the present application;

[0019] Figures 2 to 3 yes Figure 1 A schematic diagram of the structure of the acceleration detection device in an acceleration scenario;

[0020] Figure 4 is a schematic diagram of acceleration detection logic provided in an embodiment of the present application;

[0021] Figure 5 is a schematic structural diagram of a first Wheatstone bridge provided in an embodiment of the present application;

[0022] Figure 6 is a schematic diagram of the structure of a second Wheatstone bridge provided in an embodiment of the present application;

[0023] Figure 7 is a structural schematic diagram of an acceleration detection system provided in an embodiment of the present application;

[0024] Figure 8 It is a flow chart of the acceleration detection method provided in the embodiment of the present application.

[0025] Reference numerals:

[0026] 10. Acceleration detection device; 11. Detection arm; 12. Mass block; 13. Deformation detection module; 14. Temperature compensation module; 15. Base; 16. Column;

[0027] 111, fixed section; 112, deformation section; 113, swing section; 131, first deformation resistor; 132, second deformation resistor; 141, third deformation resistor; 142, fourth deformation resistor;

[0028] R1, first sub-resistor, R2, second sub-resistor; R3, third sub-resistor; R4, fourth sub-resistor; R5, fifth sub-resistor; R6, sixth sub-resistor; R7, seventh sub-resistor; R8, eighth sub-resistor; H1, first Wheatstone bridge; H2, second Wheatstone bridge;

[0029] 20. Acceleration detection system; 21. Z-axis accelerometer. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0031] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] An embodiment of the present application provides an acceleration detection device.

[0034] As the application of inertial sensing units becomes more and more widespread, the detection data obtained can be applied to various application scenarios, such as pedometers, inertial navigation, posture adjustment, camera anti-shake function, game interaction, virtual reality (VR) and other application scenarios. An inertial sensing unit usually contains an accelerometer and a gyroscope, wherein the accelerometer is used to detect acceleration and the gyroscope is used to detect angular velocity. The acceleration detection device provided in the embodiment of the present application can be applied to any of the above application scenarios.

[0035] Combine the following Figures 1 to 6 An acceleration detection device according to an embodiment of the present application is described.

[0036] like Figures 1 to 3 As shown, the embodiment of the present application provides an acceleration detection device 10, comprising:

[0037] The detection arm 11 includes a fixed section 111, a deformable section 112 and a swing section 113. The first end of the fixed section 111 is connected to the first end of the swing section 113 through the deformable section 112. The swing section 113 swings relative to the fixed section 111 through the deformation of the deformable section 112.

[0038] The mass block 12 is disposed at the second end of the swing section 113. The mass block 12 moves relative to the fixed section 111 under the action of inertia to drive the swing section 113 to swing relative to the fixed section 111.

[0039] The deformation detection module 13 is disposed on the deformation section 112, and the deformation detection module 13 is deformed along with the deformation of the deformation section 112;

[0040] The temperature compensation module 14 is disposed in at least one of the fixed section 111 and the swing section 113. The temperature compensation module 14 deforms as the temperature changes. The temperature deformation coefficient of the temperature compensation module 14 is the same as the temperature deformation coefficient of the deformation detection module 13 to compensate for the deformation of the deformation detection module 13 caused by the temperature change.

[0041] The fixed section 111 can be understood as a fixed position. The deformable section 112 can be understood as a portion that deforms under the action of an external force and restores its shape when the external force is released. The swing section 113 can be understood as a portion that is not fixed and can swing under the action of the mass block 12.

[0042] When the acceleration detection device 10 is in a static scene or a uniform motion scene, the mass block 12 and the swinging section 113 are both stationary relative to the fixed section 111, and the deformation section 112 is in an initial state and has not deformed. When the acceleration detection device 10 is in an acceleration scene, the mass block 12 moves relative to the fixed section 111 under the action of inertia, and drives the swinging section 113 to swing relative to the fixed section 111. When the swinging section 113 swings, the deformation section 112 is deformed. At this time, the deformation detection module 13 is deformed along with the deformation of the deformation section 112.

[0043] The acceleration detection device 10 of the embodiment of the present application can be applied to electronic devices, that is, the acceleration detection device 10 of the embodiment of the present application can be set in the electronic device. The temperature in the electronic device is generally not constant, so the temperature change will have a slight effect on the deformation of the deformation detection module 13.

[0044] The temperature compensation module 14 is set in at least one of the fixed section 111 and the swing section 113. Since the fixed section 111 and the swing section 113 themselves do not deform, the temperature compensation module 14 does not deform due to acceleration, but only due to temperature change. In this way, the deformation of the temperature compensation module 14 can accurately reflect the temperature change. In addition to the deformation caused by acceleration, the deformation detection module 13 will also deform due to temperature change, and the effect of temperature change on the deformation detection module 13 can be equivalent to the effect of temperature change on the temperature compensation module 14. Therefore, the deformation of the deformation detection module 13 caused by temperature change can be compensated by the deformation of the temperature compensation module 14, so as to eliminate the effect of temperature change on the detection accuracy of the deformation detection module 13.

[0045] In an embodiment of the present application, by setting a deformation detection module 13 and a temperature compensation module 14 with the same temperature deformation coefficient, the deformation amount of the deformation detection module 13 caused by temperature change can be obtained through the temperature compensation module 14, so that the deformation amount detected by the deformation detection module 13 is temperature compensated, so that the detection accuracy of the acceleration detection device 10 can be improved.

[0046] In some embodiments, the deformation detection module 13 includes a first deformation resistor 131 and a second deformation resistor 132, and the temperature compensation module 14 includes a third deformation resistor 141 and a fourth deformation resistor 142. The first deformation resistor 131 and the second deformation resistor 132 are arranged on different sides, the third deformation resistor 141 and the first deformation resistor 131 are arranged on the same side, and the fourth deformation resistor 142 and the second deformation resistor 132 are arranged on the same side.

[0047] The third deformation resistor 141 and the fourth deformation resistor 142 are used to compensate for the difference in deformation between the first deformation resistor 131 and the second deformation resistor 132 due to the temperature difference on both sides.

[0048] The deformation resistor can also be called a resistance strain gauge. When the resistance strain gauge is deformed, its resistance will also change. Correspondingly, when the resistance of the resistance strain gauge changes, it will deform. Therefore, the deformation amount of the deformation resistor can be calculated by detecting the change in resistance.

[0049] The heat inside the electronic device can be conducted in the detection arm 11. There is a certain time difference in the conduction of heat to different parts of the detection arm 11. Therefore, there is a temperature difference in different parts of the detection arm 11. For example, the temperature of the side of the detection arm 11 close to the heat source (such as the circuit board of the electronic device) is higher, while the temperature of the side away from the heat source is lower. This causes a temperature difference on different sides of the detection arm 11, and the temperature difference causes the deformation resistors on different sides of the detection arm 11 to produce different deformations.

[0050] Therefore, in order to eliminate the influence of temperature difference on the detection accuracy of the deformation detection module 13, the deformation detection module 13 and the temperature compensation module 14 can be respectively arranged on different sides (for example, two opposite sides) of the detection arm 11. In this way, the temperature difference on different sides of the detection arm 11 will cause the deformation amounts of the third deformation resistor 141 and the fourth deformation resistor 142 to be different, so that the difference in deformation amount of the first deformation resistor 131 and the second deformation resistor 132 caused by the temperature difference is compensated by the difference in deformation amount of the third deformation resistor 141 and the fourth deformation resistor 142.

[0051] For example, the acceleration detection logic is as follows: Figure 4As shown, when the posture of the electronic device changes, the mass block 12 is forced to swing, and the first deformation resistor 131 and the second deformation resistor 132 on both sides of the detection arm 11 produce different deformations, and the ASCII module inside the electronic device IC collects the corresponding first analog signal. When there is a temperature difference on both sides of the detection arm 11, the resistance of the third deformation resistor 141 and the fourth deformation resistor 142 on both sides of the detection arm 11 changes, so that the third deformation resistor 141 and the fourth deformation resistor 142 produce different deformations, and the ASCII module inside the electronic device IC collects the corresponding second analog signal. The ASCII module calculates the precise acceleration based on the first analog signal and the second analog signal. After calculating the precise acceleration, the ASCII module can send the calculation result to the AP (Application Processor, application processor) end, and the application layer can perform corresponding processing or reaction according to the acceleration. For example, the application layer can perform step counting, inertial navigation, posture adjustment, camera anti-shake, and interactive operations in the game interface according to the acceleration.

[0052] According to the acceleration detection device 10 of the embodiment of the present application, it can be used to detect acceleration in any direction, for example, it can be used to detect acceleration of the X axis, and it can also be used to detect acceleration of the Y axis or Z axis. The following takes the Z axis acceleration detection scenario as an example to introduce the acceleration detection device 10 in more detail.

[0053] In some embodiments, the acceleration detection device 10 further includes a base 15 and a column 16, wherein a first end of the column 16 is connected to the base 15, and a second end of the column 16 is connected to a second end of the fixed section 111;

[0054] The first deformation resistor 131 and the third deformation resistor 141 are disposed at a side close to the base 15 , and the second deformation resistor 132 and the fourth deformation resistor 142 are disposed at a side away from the base 15 .

[0055] When the base 15 is in contact with the heat source, the heat will be conducted from the base 15 to the column 16, and then conducted along the column 16 to the detection arm 11, and conducted from the side of the detection arm 11 close to the base 15 to the side of the detection arm 11 away from the base 15. Therefore, the temperature of the side of the detection arm 11 close to the base 15 is higher than the temperature of the side of the detection arm 11 away from the base 15, and there is a temperature difference between the two opposite sides.

[0056] Therefore, by respectively arranging the first deformation resistor 131 and the second deformation resistor 132 on two opposite sides, and respectively arranging the third deformation resistor 141 and the fourth deformation resistor 142 on two opposite sides, the difference in deformation between the third deformation resistor 141 and the fourth deformation resistor 142 can be used to compensate for the difference in deformation between the first deformation resistor 131 and the second deformation resistor 132 caused by the temperature difference on both sides, thereby improving the detection accuracy of the acceleration detection device 10.

[0057] In some embodiments, Figures 5 and 6 As shown, the first deformation resistor 131 includes a first sub-resistor R1 and a second sub-resistor R2, and the second deformation resistor 132 includes a third sub-resistor R3 and a fourth sub-resistor R4. The first sub-resistor R1, the second sub-resistor R2, the third sub-resistor R3 and the fourth sub-resistor R4 form a first Wheatstone bridge H1;

[0058] The third deformation resistor 141 includes a fifth sub-resistor R5 and a sixth sub-resistor R6. The fourth deformation resistor 142 includes a seventh sub-resistor R7 and an eighth sub-resistor R8. The fifth sub-resistor R5, the sixth sub-resistor R6, the seventh sub-resistor R7 and the eighth sub-resistor R8 form a second Wheatstone bridge H2.

[0059] This embodiment provides a Wheatstone bridge detection solution.

[0060] For the first Wheatstone bridge H1, if Figure 5 As shown, when the mass block 12 moves under the action of inertia, it drives the swing section 113 to swing relative to the fixed section 111. At this time, the deformation section 112 is deformed, and drives the first deformation resistor 131 and the second deformation resistor 132 to deform accordingly. At this time, the first Wheatstone bridge H1 outputs a first differential signal. The acceleration direction can be determined by the positive and negative value of the first differential signal, and the initial acceleration value can be calculated by the value of the first differential signal.

[0061] For the second Wheatstone bridge H2, if Figure 6 As shown, the four deformation resistors are grouped in two, ensuring that each time deformation occurs, the resistance of one group increases while the resistance of the other group decreases. As long as the resistance of the fifth sub-resistor R5 and the sixth sub-resistor R6 decreases at the same time, and the resistance of the seventh sub-resistor R7 and the eighth sub-resistor R8 decreases at the same time, the second differential signal is output, and then the deformation caused by the temperature difference can be calculated based on the second differential signal.

[0062] Subsequently, the initial acceleration value can be compensated according to the deformation caused by the temperature difference calculated from the second differential signal to obtain an accurate acceleration value.

[0063] The use of a Wheatstone bridge for deformation detection can efficiently and easily solve the problem of acceleration detection accuracy caused by temperature changes.

[0064] It should be noted that, in addition to using the Wheatstone bridge method to perform deformation detection, a resistance value detection method can also be used to perform deformation detection.

[0065] In some embodiments, the fifth sub-resistor R5 and the seventh sub-resistor R7 are both disposed in the fixed section 111 , and the sixth sub-resistor R6 and the eighth sub-resistor R8 are both disposed in the swing section 113 .

[0066] In this way, the temperature compensation modules 14 are located on both sides of the deformation detection module 13 . Furthermore, the temperature compensation modules 14 can be symmetrically arranged on both sides of the deformation detection module 13 with the deformation detection module 13 as the center.

[0067] By arranging the temperature compensation modules 14 on both sides of the deformation detection module 13 , the temperature difference that may exist in the same plane can be further eliminated, thereby further improving the detection accuracy of the acceleration detection device 10 .

[0068] It should be noted that the above resistors can all be arranged in the fixed section 111 , or can all be arranged in the swing section 113 . In this way, the temperature compensation module 14 is located at one side of the deformation detection module 13 .

[0069] Other structures and operations of the acceleration detection device 10 according to the embodiment of the present application are known to those skilled in the art and will not be described in detail here.

[0070] An embodiment of the present application also provides an acceleration detection system, including an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer, at least one of the X-axis accelerometer, the Y-axis accelerometer and the Z-axis accelerometer adopts any one of the acceleration detection devices in the above embodiments.

[0071] The acceleration detection system is also called MEMS (Micro-Electro-Mechanical System). Figure 7 As shown, an acceleration detection system 20 can be set in the electronic device, including a Z-axis detection area, an X-axis detection area and a Y-axis detection area, wherein a Z-axis accelerometer 21 can be set in the Z-axis detection area, an X-axis accelerometer (not shown) can be set in the X-axis detection area, and a Y-axis accelerometer (not shown) can be set in the Y-axis detection area.

[0072] In some embodiments, the Z-axis accelerometer adopts any one of the acceleration detection devices in the above embodiments.

[0073] The X-axis accelerometer and the Y-axis accelerometer can realize acceleration detection in a plane, and the temperature distribution in the plane is generally more uniform. Therefore, the detection accuracy of the X-axis accelerometer and the Y-axis accelerometer is minimally affected by the temperature difference and can be ignored. Therefore, the X-axis accelerometer and the Y-axis accelerometer do not need to be provided with a temperature compensation module, and both the X-axis accelerometer and the Y-axis accelerometer can adopt a capacitive structure. However, due to the time difference of heat conduction in the Z-axis accelerometer, the detection accuracy of the Z-axis accelerometer 21 is greatly affected by the temperature difference. Therefore, the Z-axis accelerometer 21 can be provided with a temperature compensation module to eliminate the influence of the temperature difference on the acceleration detection accuracy.

[0074] An embodiment of the present application also provides an electronic device, comprising any one of the acceleration detection systems in the above embodiments.

[0075] In some embodiments, the acceleration detection device is disposed on a circuit board, and the deformation detection module and the temperature compensation module are both electrically connected to the circuit board.

[0076] In the embodiment of the present application, the electronic device may be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc.

[0077] Other structures and operations of the electronic device according to the embodiments of the present application are known to those skilled in the art and will not be described in detail here.

[0078] like Figure 8 As shown, an embodiment of the present application further provides an acceleration detection method, which is applied to an electronic device, wherein the electronic device includes any one of the acceleration detection devices in the aforementioned embodiments, and the method includes:

[0079] Step 301: Acquire a first analog signal output by a deformation sensing device and a second analog signal output by a temperature compensation device;

[0080] Step 302: Calculate the acceleration of the electronic device according to the first analog signal and the second analog signal.

[0081] In some embodiments, the deformation sensing device forms a first Wheatstone bridge, and the temperature compensation device forms a second Wheatstone bridge;

[0082] The step of obtaining a first analog signal output by the deformation detection device and a second analog signal output by the temperature compensation device includes:

[0083] Acquire a first differential signal output by the first Wheatstone bridge and a second differential signal output by the second Wheatstone bridge;

[0084] Calculating the acceleration of the electronic device according to the first analog signal and the second analog signal includes:

[0085] The acceleration of the electronic device is calculated according to the first differential signal and the second differential signal.

[0086] In some embodiments, calculating the acceleration of the electronic device according to the first differential signal and the second differential signal includes:

[0087] Determining the acceleration direction of the electronic device according to the positive or negative value of the first differential signal, and calculating a first acceleration value according to the absolute value of the first differential signal;

[0088] Calculating the temperature difference deformation amount according to the second differential signal;

[0089] The first acceleration value is compensated according to the temperature difference deformation to obtain the acceleration value of the electronic device.

[0090] The acceleration detection method in the embodiments of the present application can refer to the relevant description of the acceleration detection scheme in the aforementioned embodiments. To avoid repetition, it will not be described in detail.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An acceleration detection device, characterized in that: include: The detection arm comprises a fixed section, a deformation section and a swing section, wherein the first end of the fixed section is connected to the first end of the swing section through the deformation section, and the swing section swings relative to the fixed section through the deformation of the deformation section; A mass block is disposed at the second end of the swing section, and the mass block moves relative to the fixed section under the action of inertia to drive the swing section to swing relative to the fixed section; A deformation detection device is arranged on the deformation section, and the deformation detection device is deformed along with the deformation of the deformation section; a temperature compensation device, disposed in at least one of the fixed section and the swing section, wherein the temperature compensation device deforms as the temperature changes, and the temperature deformation coefficient of the temperature compensation device is the same as the temperature deformation coefficient of the deformation detection device, so as to compensate for the deformation amount of the deformation detection device caused by the temperature change; The deformation detection device includes a first deformation resistor and a second deformation resistor, the temperature compensation device includes a third deformation resistor and a fourth deformation resistor, the first deformation resistor and the second deformation resistor are arranged on different sides, the third deformation resistor and the first deformation resistor are arranged on the same side, and the fourth deformation resistor and the second deformation resistor are arranged on the same side; The third deformation resistor and the fourth deformation resistor are used to compensate for the difference in deformation amount between the first deformation resistor and the second deformation resistor due to the temperature difference on both sides; The deformation detection device forms a first Wheatstone bridge, and the temperature compensation device forms a second Wheatstone bridge. The first Wheatstone bridge is used to output a first differential signal for calculating a first acceleration value, and the second Wheatstone bridge is used to output a second differential signal for calculating a temperature difference deformation amount, and the temperature difference deformation amount compensates the first acceleration value to obtain acceleration.

2. The acceleration detection device according to claim 1, characterized in that: It also includes a base and a column, wherein a first end of the column is connected to the base, and a second end of the column is connected to the second end of the fixing section; The first deformation resistor and the third deformation resistor are arranged on a side close to the base, and the second deformation resistor and the fourth deformation resistor are arranged on a side away from the base.

3. The acceleration detection device according to claim 1, characterized in that: The first deformation resistor includes a first sub-resistor and a second sub-resistor, the second deformation resistor includes a third sub-resistor and a fourth sub-resistor, and the first sub-resistor, the second sub-resistor, the third sub-resistor and the fourth sub-resistor form a first Wheatstone bridge; The third deformation resistor includes a fifth sub-resistor and a sixth sub-resistor, the fourth deformation resistor includes a seventh sub-resistor and an eighth sub-resistor, and the fifth sub-resistor, the sixth sub-resistor, the seventh sub-resistor and the eighth sub-resistor form a second Wheatstone bridge.

4. The acceleration detection device according to claim 3, characterized in that: The fifth sub-resistor and the seventh sub-resistor are both arranged in the fixed section, and the sixth sub-resistor and the eighth sub-resistor are both arranged in the swing section.

5. An acceleration detection system, characterized in that: The invention comprises an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer, wherein at least one of the X-axis accelerometer, the Y-axis accelerometer and the Z-axis accelerometer adopts the acceleration detection device according to any one of claims 1 to 4.

6. An electronic device, characterized in that: It comprises the acceleration detection system as claimed in claim 5, wherein the acceleration detection device is arranged on a circuit board, and the deformation detection device and the temperature compensation device are both electrically connected to the circuit board.

7. An acceleration detection method, applied to electronic equipment, characterized in that: The electronic device comprises the acceleration detection device according to any one of claims 1 to 5, and the method comprises: Acquire a first analog signal output by the deformation detection device and a second analog signal output by the temperature compensation device; Calculating the acceleration of the electronic device according to the first analog signal and the second analog signal; The deformation sensing device forms a first Wheatstone bridge, and the temperature compensation device forms a second Wheatstone bridge; and the step of obtaining a first analog signal output by the deformation sensing device and a second analog signal output by the temperature compensation device includes: Acquire a first differential signal output by the first Wheatstone bridge and a second differential signal output by the second Wheatstone bridge; Calculating the acceleration of the electronic device according to the first analog signal and the second analog signal includes: Calculating the acceleration of the electronic device according to the first differential signal and the second differential signal; Calculating the acceleration of the electronic device according to the first differential signal and the second differential signal includes: Determining the acceleration direction of the electronic device according to the positive or negative value of the first differential signal, and calculating a first acceleration value according to the absolute value of the first differential signal; Calculating the temperature difference deformation amount according to the second differential signal; The first acceleration value is compensated according to the temperature difference deformation to obtain the acceleration of the electronic device.

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