Helmet wearing detection device, method and shared vehicle

Abstract

The present application discloses a helmet wearing detection device, method and shared vehicle. The helmet wearing detection device includes a height detection module, a position detection module and a control module; the height detection module is arranged on the helmet, and the height detection module is configured to detect the height of the position of the helmet and generate height data; the position detection module is configured to detect whether the helmet is located at a set position on the shared vehicle; when the helmet is located at the set position, the position detection module generates a position signal; when the helmet is located at a non-set position, the position detection module generates an out-of-position signal; the height detection module and the position detection module are respectively connected to the control module, and the control module is configured to receive the height data while receiving the position signal or the out-of-position signal. The helmet wearing detection device provided in the present application can detect whether the user is wearing a helmet.

Description

Technical Field

[0001] The present application relates to the technical field of transportation vehicles, and more specifically, to a helmet wearing detection device, method and shared vehicle. Background Art

[0002] With the increasing pressure of urban traffic and the demand for green travel, bicycles and other two-wheeled vehicles have gradually become common means of transportation. In recent years, shared vehicles have been favored by many people for their low-carbon, environmentally friendly and convenient parking characteristics.

[0003] In the prior art, some shared vehicles are gradually equipped with protective components to ensure the safety of riders and reduce casualties in traffic accidents. For example, some shared electric vehicles usually require helmets, but in actual use, riders usually forget to wear helmets for various reasons, resulting in reduced riding safety. In order to ensure the safety of riders, it is necessary to determine whether the rider is wearing a helmet in order to remind or force the rider to wear a helmet. Summary of the invention

[0004] One purpose of the present application is to provide a new technical solution for helmet wearing detection device, method and shared vehicle.

[0005] According to a first aspect of the present application, a helmet wearing detection device is provided, which is applied to a shared vehicle, comprising:

[0006] A height detection module, the height detection module is arranged on the helmet, and the height detection module is configured to detect the height of the helmet and generate height data;

[0007] an in-position detection module, the in-position detection module being configured to detect whether the helmet is located at a set position on the shared vehicle; when the helmet is located at the set position, the in-position detection module generates an in-position signal; when the helmet is located at a position other than the set position, the in-position detection module generates an out-of-position signal;

[0008] The control module, the height detection module and the in-position detection module are respectively connected to the control module, and the control module is configured to receive the height data while receiving the in-position signal or the out-of-position signal.

[0009] Optionally, the altitude detection module comprises a first atmospheric pressure sensor, which is located on the helmet and generates the altitude data.

[0010] Optionally, the altitude detection module further includes a second atmospheric pressure sensor, and the second atmospheric pressure sensor is located at the set position;

[0011] The first atmospheric pressure sensor and the second atmospheric pressure sensor can be calibrated with each other.

[0012] Optionally, a helmet lock is further included, wherein the helmet lock is connected to the control module, and when the helmet is located at the set position, the control module can control the helmet lock to lock the helmet.

[0013] Optionally, the control module includes a first module and a second module, the first module is located on the helmet and connected to the height detection module, and the second module is located at the set position and connected to the in-place detection module;

[0014] The second module can receive the height data through the first module while receiving the in-position signal or the out-of-position signal.

[0015] Optionally, a distance sensor is further included, the distance sensor is located on the helmet, and is used to detect the distance between the object in the helmet and the helmet, and generate distance data;

[0016] The control module can receive the distance data at least simultaneously with receiving the out-of-position signal.

[0017] Optionally, a motion sensor is further included, the motion sensor being located on the helmet and configured to detect whether the helmet is angularly deflected relative to its set posture and generate deflection data;

[0018] The control module can receive the deflection data at least simultaneously with receiving the out-of-position signal.

[0019] According to a second aspect of the present application, a helmet wearing detection method is provided, which is applied to the helmet wearing detection device according to the first aspect, wherein the control module is preset with a height threshold, and the detection method comprises:

[0020] When the control module receives the in-position signal, the received height data is used as a first height value, and when the control module receives the out-of-position signal, the received height data is used as a second height value;

[0021] A relative height difference between the second height value and the first height value is obtained, and the relative height difference is compared with the relative height threshold. When the relative height difference is included in the relative height threshold, it is determined that the user is wearing a helmet.

[0022] Optionally, when the control module receives the in-place signal, the height data is received at a fixed time;

[0023] Before the control module receives the out-of-position signal, the height data received by the control module for the last time is used as the first height value.

[0024] According to a third aspect of the present application, a shared vehicle is provided, comprising: a braking device, a main control module and the helmet wearing detection device according to the first aspect, wherein the braking device and the control module are respectively connected to the main control module;

[0025] The main control module is configured to control the braking device to brake the shared vehicle according to the height data received by the control module.

[0026] The present application can detect the position height of the helmet in real time and generate the height data of the helmet by setting a height detection module on the helmet, and can send out an in-position signal when the helmet is at a set position and send out-of-position signal when the helmet is at a non-set position by setting an in-position detection module on the shared vehicle. In use, the position height of the helmet at the set position and the position height when worn on the user's head have different height value ranges, or have a certain height difference range, and the control module can determine whether the user is wearing a helmet based on the height data received when receiving the in-position signal and the height data received when receiving the out-of-position signal.

[0027] By adopting the detection method of the position detection module combined with the height detection module, the control module can accurately receive the height values ​​of the helmet at different positions, thereby improving the accuracy of judging whether the helmet is worn.

[0028] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0030] Figure 1 It is a schematic diagram of a helmet wearing detection device provided by the present application when the helmet is located at a set position.

[0031] Figure 2 This is an electronic functional structure diagram of a helmet wearing detection device provided in this application.

[0032] Figure 3 This is an electronic functional structure diagram of another helmet wearing detection device provided in this application.

[0033] Description of reference numerals:

[0034] 1. Helmet; 2. Car basket; 3. First atmospheric pressure sensor; 4. Second atmospheric pressure sensor; 5. Hall sensor; 6. Magnet; 7. Helmet lock; 8. Control module. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that all actions to obtain signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located, and with the authorization given by the owner of the corresponding device.

[0040] according to Figures 1 to 3 As shown, the present application provides a helmet wearing detection device, which is applied to a shared vehicle, and includes a height detection module, an in-position detection module and a control module 8; the height detection module is arranged on the helmet 1, and the height detection module is configured to detect the height of the position of the helmet 1 and generate height data; the in-position detection module is configured to detect whether the helmet 1 is located at a set position on the shared vehicle; when the helmet 1 is located at the set position, the in-position detection module generates an in-position signal; when the helmet 1 is not located at the set position, the in-position detection module generates an out-of-position signal; the height detection module and the in-position detection module are respectively connected to the control module 8, and the control module 8 is configured to receive the height data while receiving the in-position signal or the out-of-position signal.

[0041] Specifically, in this embodiment, the height detection module is arranged on the helmet 1, and can detect the height of the position of the helmet 1 at any time as the helmet 1 moves, and convert this height into a specific height value as the height data. In one embodiment, the height data generated by the height detection module can be transmitted to an external device, such as the control module 8 in this application; or the external device can directly obtain this height data from the height detection module, and then analyze or organize the data, etc., and this application does not limit this. Among them, the detection function of the height detection module can be implemented by using components such as sensors that can detect height, such as atmospheric pressure sensors, or acceleration sensors, etc., which can be selected according to actual needs, and this application does not limit this.

[0042] In this embodiment, the in-place detection module generates an in-place signal or an out-of-place signal by detecting whether the helmet 1 is at a set position. Among them, the in-place signal or the out-of-place signal can be a continuous signal or an intermittent signal, and the setting position of the in-place detection module can be set on the helmet 1 or on the shared vehicle, and the specific basis can be determined according to the form of the in-place detection module or actual needs. In one embodiment, the function of the in-place detection module can be realized by devices such as a Hall sensor 5 or an RFID reader. For example, when the Hall sensor 5 is used, the Hall sensor 5 and the magnet 6 can be respectively set on the helmet 1 and the set position of the shared vehicle, and the purpose of detecting whether the helmet 1 is at the set position is achieved by mutual induction of the two. Among them, the set position is the placement position of the helmet 1 on the shared vehicle when not in use, such as the basket 2 of the shared vehicle, which can be selected according to the design requirements.

[0043] In addition, the height detection module and the in-position detection module are respectively connected to the control module 8, so that the control module 8 can receive the in-position signal and the out-of-position signal generated by the in-position detection module, as well as the height data generated by the height detection module. When the control module 8 receives the in-position signal, it means that the helmet 1 is located at the set position. At this time, the control module 8 simultaneously receives the height data generated by the height detection module. This height data is the position height value when the helmet 1 is located at the set position, which is recorded as the first height value. When the control module 8 receives the out-of-position signal, it means that the helmet 1 is not located at the set position, that is, the user may take the helmet 1 away and place it somewhere else, or may wear the helmet 1 on the head. At this time, the control module 8 simultaneously receives the height data generated by the height detection module. This height data is the position height value when the helmet 1 is located at a non-set position, which is recorded as the second height value.

[0044] In actual use, since the height of the helmet 1 when the user wears the helmet 1 and the height of the helmet 1 when the helmet 1 is in a set position have different height ranges, the control module 8 or the external device can determine whether the user is wearing the helmet 1 according to the first height value and the second height value. In order to make the technical solution of the present application clearer, several determination methods are listed below.

[0045] In one embodiment, the control module 8 sets a height value range of the helmet 1 relative to the ground when the user wears the helmet 1 in combination with the user's height value, such as being set to 140 to 170 cm. When the control module 8 receives an out-of-position signal and the received height data (i.e., the second height value) is within the above-mentioned height value range, it is determined that the user is wearing the helmet 1.

[0046] In another embodiment, the control module 8 sets the height difference range of the helmet 1 relative to the set position when the user wears the helmet 1 in combination with the user's height value, such as being set to 50 to 80 cm. When the control module 8 receives the out-of-position signal, when the height difference of the received height data (i.e., the second height value) relative to the first height value is within the above-mentioned height value range, it is determined that the user is wearing the helmet 1.

[0047] The specific determination method can be set according to actual needs, and the determination of whether the user is wearing a helmet 1 can be performed by the control module 8 in this application, or by an external device, for example, it can be implemented by a main control module or APP equipped in a shared vehicle, and this application does not limit this. It should be noted that the height value range listed above is only an example and is not used as a specific numerical value to limit this solution. In addition, the connection between the control module 8 and the in-place detection module and the height detection module can be directly connected or indirectly connected through other devices, and this application does not limit this.

[0048] The present application uses the above structure to detect whether the user is wearing a helmet 1 during the use of a shared vehicle, thereby improving the safety of riding. In addition, by using a position detection module combined with a height detection module, the control module 8 can accurately receive the height value of the helmet 1 at different positions, thereby improving the accuracy of determining whether the helmet 1 is worn.

[0049] Optionally, refer to Figure 1 The altitude detection module includes a first atmospheric pressure sensor 3, which is located on the helmet 1 and generates the altitude data.

[0050] Specifically, the atmospheric pressure sensor can collect atmospheric pressure and convert the collected data into altitude, and can calculate relative altitude and absolute altitude. It has low cost, high accuracy and low power consumption, and is suitable for mass production of shared vehicles.

[0051] In one embodiment, the first atmospheric pressure sensor 3 is embedded in the helmet, and an air hole is provided on the outer surface of the helmet 1. The first atmospheric pressure sensor 3 can collect the atmospheric pressure at the position where the helmet 1 is located through the air hole and convert it into a height value. When the helmet 1 is located at the set position, the control module 8 receives an in-position signal and simultaneously receives the height data generated by the first atmospheric pressure sensor 3 as the first height value. When the helmet 1 is located at a non-set position, the control module 8 receives an out-of-position signal and simultaneously receives the height data generated by the first atmospheric pressure sensor 3 as the second height value. By comparing the difference between the second height value and the first height value, it can be determined whether the user is wearing the helmet 1.

[0052] Among them, the first atmospheric pressure sensor 3 can actively collect the atmospheric pressure to generate altitude data, or it can passively collect the atmospheric pressure through the action instructions issued by the control module 8 to generate altitude data. The specific collection method can be set according to design requirements.

[0053] Optionally, refer to Figure 1 and Figure 3 The height detection module further includes a second atmospheric pressure sensor 4, which is located at the set position; the first atmospheric pressure sensor 3 and the second atmospheric pressure sensor 4 can be calibrated with each other.

[0054] Specifically, in this embodiment, the altitude detection module includes two atmospheric pressure sensors. The first atmospheric pressure sensor 3 is located on the helmet 1 and is used to collect the atmospheric pressure at the location of the helmet 1 to calculate the altitude and generate altitude data. The second atmospheric pressure sensor 4 is located at a set position and is used to collect the atmospheric pressure at the set position and calculate the altitude.

[0055] When the helmet 1 is at the set position, the two atmospheric pressure sensors can be synchronized or calibrated with each other. The altitude value calculated by the second atmospheric pressure sensor 4 can be used as the altitude 0 point of the first atmospheric pressure sensor 3. When the shared vehicle goes uphill or downhill, the second atmospheric pressure sensor 4 will go uphill or downhill with the vehicle. The relative distance between the first atmospheric pressure sensor 3 and the second atmospheric pressure sensor 4 on the helmet 1 worn on the user's head is constant, which eliminates the interference of the altitude data generated by the first atmospheric pressure sensor 3 by the uphill or downhill, eliminates errors, and improves the accuracy of the helmet wearing detection device.

[0056] Optionally, refer to Figure 1 and Figure 3 The helmet wearing detection device also includes a helmet lock 7, which is connected to the control module 8. When the helmet 1 is located at the set position, the control module 8 can control the helmet lock 7 to lock the helmet 1.

[0057] Specifically, in order to avoid the helmet 1 from being lost, a helmet lock 7 is usually used to fix the helmet 1 on the shared vehicle during actual use. In this embodiment, the helmet lock 7 is set at a set position. When the control module 8 receives the in-position signal of the in-position detection module, it means that the helmet 1 is at the set position. The control module 8 can control the helmet lock 7 to lock the helmet 1, so that the helmet wearing detection device and the helmet lock 7 are integrated into one place, which saves the layout space of the shared vehicle and improves the integration of the vehicle.

[0058] Optionally, refer to Figure 3 The control module 8 includes a first module and a second module, the first module is located on the helmet 1 and is connected to the height detection module, the second module is located at the set position and is connected to the in-position detection module; the second module can receive the height data through the first module while receiving the in-position signal or the out-of-position signal.

[0059] Specifically, when the helmet 1 is actually used, it is separated from the shared vehicle, and in order to ensure the accuracy of the detection of each module, there may be a situation where one part is located on the shared vehicle and the other part is located on the helmet 1. In this embodiment, the control module 8 includes a first module and a second module, wherein the first module is located on the helmet 1 and connected to the height detection module, which can be used to directly receive the height data at the location of the helmet 1, and the second module is located at a set position and connected to the in-place detection module, which can be used to directly receive the in-place signal or the out-of-place signal, and receive the height data through the first module. At this time, the first module and the second module can be connected by wireless signals, such as by Bluetooth, so as to separate the helmet 1 from the shared vehicle. The second module uses a wired communication module to connect with other parts of the shared vehicle, such as connecting with the main control module of the shared vehicle through a CAN communication module, so as to improve the reliability of the external transmission of signals by the helmet wearing detection device in the helmet 1.

[0060] Optionally, refer to Figure 3 The helmet wearing detection device also includes a distance sensor, which is located on the helmet 1 and is used to detect the distance between the object in the helmet 1 and the helmet 1 and generate distance data; the control module 8 can receive the distance data at least at the same time as receiving the out-of-position signal.

[0061] Specifically, in this embodiment, by arranging a distance sensor on the helmet 1, the distance between the object in the helmet 1 and the helmet 1 can be detected, that is, if the user takes the helmet 1 away from the set position, the in-place detection sensor sends a departure signal. At this time, the distance sensor can detect whether the user's head is inside the helmet 1 through the distance between the helmet 1 and the human body, and generate distance data. The control module 8 assists in determining whether the user is wearing the helmet 1 through the received distance data, so as to improve the accuracy of the helmet wearing detection device.

[0062] In one embodiment, the numerical range of the distance data when the user wears the helmet 1 can be set in the control module 8. For example, when the distance sensor detects that the distance between the human body and the inner surface of the helmet 1 falls within 0 to 3 cm, it is determined that the user is wearing the helmet 1. The distance sensor can be an infrared obstacle sensor, a human proximity sensor, a temperature sensor, etc., and this application does not limit this.

[0063] Optionally, refer to Figure 3 The helmet wearing detection device also includes a motion sensor, which is located on the helmet 1 and is used to detect whether the helmet 1 is angularly deflected relative to its set posture and generate deflection data; the control module 8 can receive the deflection data at least at the same time as receiving the out-of-position signal.

[0064] Specifically, in this embodiment, by arranging a motion sensor on the helmet 1, the posture change of the helmet 1 can be detected, that is, if the user wears the helmet 1, the wearing posture of the helmet 1 on the head can be maintained within a certain deflection degree, and the deflection data is generated by detecting the size of the deflection angle of the helmet 1. The control module 8 assists in determining whether the user wears the helmet 1 through the received deflection data, so as to improve the accuracy of the helmet wearing detection device.

[0065] In one embodiment, the wearing posture of the helmet 1 is set to a deflection angle of ±60° in the vertical direction, and when the motion sensor detects that the helmet 1 is deflected within ±60° in the vertical direction, it is determined that the user is wearing the helmet 1. The motion sensor can be a 3-axis sensor, a 6-axis sensor, or a 9-axis sensor, etc., and this application does not limit this.

[0066] According to a second aspect of the present application, a helmet wearing detection method is provided, referring to Figures 2 to 3 , applied to the helmet wearing detection device described in the first aspect, the control module 8 is preset with a relative height threshold, and the detection method includes:

[0067] When the control module 8 receives the in-position signal, the received height data is used as the first height value; when the control module 8 receives the out-of-position signal, the received height data is used as the second height value;

[0068] A relative height difference between the second height value and the first height value is obtained, and the relative height difference is compared with the relative height threshold. When the relative height difference is included in the relative height threshold, it is determined that the user is wearing the helmet 1.

[0069] Specifically, in one embodiment, the relative height threshold is defined as the height difference between the height data when the helmet 1 is in a non-set position and the height data when the helmet 1 is in a set position, which is 50 to 80 cm. The height detection module uses an atmospheric pressure sensor, and the in-position detection module uses a Hall sensor. The atmospheric pressure sensor and the Hall sensor 5 are both set on the helmet 1, and a magnet 6 is set at the basket 2 (i.e., the set position).

[0070] When the helmet 1 is in the basket 2, the Hall sensor 5 and the magnet 6 sense the distance between each other and send a signal indicating that the helmet 1 is in place to the control module 8. At this time, the control module 8 simultaneously receives the height data detected by the atmospheric pressure sensor and uses the height data as the first height value.

[0071] When the user takes away the helmet 1, the sensing distance between the Hall sensor 5 and the magnet 6 changes, and a signal indicating that the helmet 1 is out of position is sent to the control module 8. At this time, the control module 8 simultaneously receives the height data detected by the atmospheric pressure sensor, and uses the height data as the second height value.

[0072] When the height difference between the second height value and the first height value is within 50-80 cm, it is determined that the user is wearing the helmet 1 ; when the height difference is greater than 80 cm or less than 50 cm, it is determined that the user is not wearing the helmet 1 .

[0073] In another embodiment, the relative height threshold is defined as the height difference between the height data when the helmet 1 is in a non-set position and the height data when the helmet 1 is in a set position, which is 50 to 80 cm. The height detection module uses two atmospheric pressure sensors, and the in-position detection module uses a Hall sensor. The first atmospheric pressure sensor 3 and the Hall sensor 5 are both arranged on the helmet 1, and a magnet 6 and a second atmospheric pressure sensor 4 are arranged at the basket 2 (i.e., at the set position).

[0074] When the helmet 1 is in the basket 2, the Hall sensor 5 and the magnet 6 sense the distance between each other and send a signal indicating that the helmet 1 is in place to the control module 8. At this time, the first atmospheric pressure sensor 3 and the second atmospheric pressure sensor 4 are calibrated with each other, so that the first atmospheric pressure sensor 3 detects the height value of the second atmospheric pressure sensor 4 as the height 0 point. The control module 8 simultaneously receives the height data detected by the first atmospheric pressure sensor 3 and uses the height data as the first height value.

[0075] When the user takes away the helmet 1, the sensing distance between the Hall sensor 5 and the magnet 6 changes, and a signal indicating that the helmet 1 is out of position is sent to the control module 8. At this time, the control module 8 simultaneously receives the height data detected by the first atmospheric pressure sensor 3, and uses the height data as the second height value. The second height value is the height data relative to the second atmospheric pressure sensor 4. Since the distance between the second pressure sensor and the first pressure sensor is constant during the driving process of the vehicle, the height data detected by the first pressure sensor is more accurate.

[0076] Similarly, when the height difference of the second height value minus the first height value is within 50-80 cm, it is determined that the user is wearing the helmet 1 ; when the height difference is greater than 80 cm or less than 50 cm, it is determined that the user is not wearing the helmet 1 .

[0077] Optionally, when the control module 8 receives the in-position signal, the height data is received periodically; before the control module 8 receives the out-of-position signal, the height data received last by the control module 8 is used as the first height value.

[0078] Specifically, in actual use, the shared vehicle is not in use for a long time, and the helmet 1 is located at the set position for a long time. The control module 8 receives the height data regularly, which can reduce the power consumption of the entire helmet wearing detection device and save costs.

[0079] According to the third aspect of the present application, a shared vehicle is provided, comprising: a braking device, a main control module and the helmet wearing detection device described in the first aspect, the braking device and the control module 8 are respectively connected to the main control module; the main control module is configured to control the braking device to brake the shared vehicle according to the height data received by the control module 8.

[0080] Specifically, in this embodiment, the shared vehicle has a main control module, which can control the braking device to brake the vehicle. In actual use, the main control module can determine the wearing state of the helmet 1 through the control module 8. If the user wears the helmet 1, the vehicle can drive normally. If the user does not wear the helmet 1, the main control module can obtain this information through the control module 8, and then control the braking device to brake the vehicle to remind the user to wear the helmet 1 and improve safety.

[0081] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0082] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A helmet wearing detection device, applied to a shared vehicle, characterized in that: include: A height detection module, the height detection module is configured to detect the height of the helmet of the shared vehicle and generate height data, the height detection module includes a first atmospheric pressure sensor and a second atmospheric pressure sensor, the first atmospheric pressure sensor and the second atmospheric pressure sensor can be calibrated with each other; wherein the first atmospheric pressure sensor is located on the helmet and generates the height data, and the second atmospheric pressure sensor is located at a set position, and the set position includes a vehicle basket; an in-position detection module, the in-position detection module being configured to detect whether the helmet is located at a set position on the shared vehicle; when the helmet is located at the set position, the in-position detection module generates an in-position signal; when the helmet is located at a position other than the set position, the in-position detection module generates an out-of-position signal; A control module, comprising a first module and a second module, wherein the first module is located on the helmet and connected to the height detection module, and the second module is located at the set position and connected to the in-situ detection module; The second module can receive the height data through the first module while receiving the in-position signal or the out-of-position signal; When the helmet is in the basket, the in-place detection module sends a helmet in-place signal to the control module, and the first atmospheric pressure sensor and the second atmospheric pressure sensor are calibrated with each other, so that the first atmospheric pressure sensor detects the height value of the second atmospheric pressure sensor as the height 0 point. At this time, the control module simultaneously receives the height data detected by the first atmospheric pressure sensor and uses the height data as the first height value. When the user takes away the helmet, the on-site detection module sends a helmet-out-of-place signal to the control module. At this time, the control module simultaneously receives the altitude data detected by the first atmospheric pressure sensor and uses the altitude data as the second altitude value.

2. The helmet wearing detection device according to claim 1, characterized in that: It also includes a helmet lock, which is connected to the control module. When the helmet is located at the set position, the control module can control the helmet lock to lock the helmet.

3. The helmet wearing detection device according to claim 1, characterized in that: Also included is a distance sensor, which is located on the helmet and is used to detect the distance between the object in the helmet and the helmet and generate distance data; The control module can receive the distance data at least simultaneously with receiving the out-of-position signal.

4. The helmet wearing detection device according to claim 1, characterized in that: Also included is a motion sensor, which is located on the helmet and is used to detect whether the helmet is angularly deflected relative to its set posture and generate deflection data; The control module can receive the deflection data at least simultaneously with receiving the out-of-position signal.

5. A helmet wearing detection method, applied to the helmet wearing detection device according to any one of claims 1 to 4, characterized in that: The control module is preset with a relative height threshold, and the detection method includes: When the control module receives the in-position signal, the received height data is used as a first height value, and when the control module receives the out-of-position signal, the received height data is used as a second height value; A relative height difference between the second height value and the first height value is obtained, and the relative height difference is compared with the relative height threshold. When the relative height difference is included in the relative height threshold, it is determined that the user is wearing a helmet.

6. The helmet wearing detection method according to claim 5, characterized in that: When the control module receives the in-position signal, receiving the altitude data at a regular time; Before the control module receives the out-of-position signal, the height data received by the control module for the last time is used as the first height value.

7. A shared vehicle, characterized in that: include: A braking device, a main control module and a helmet wearing detection device according to any one of claims 1 to 4, wherein the braking device and the control module are respectively connected to the main control module; The main control module is configured to control the braking device to brake the shared vehicle according to the height data received by the control module.

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