Wireless transceiving device for detecting and observing left, right and rear parts in driver examination

Abstract

The utility model discloses a wireless transceiver device for detecting and observing left, right and rear parts in a driver test, and relates to the technical field of driving test assistance. The device comprises a human body side module used for being fixedly worn on the head of a driver and a vehicle body side module used for being fixedly installed on a driver examination vehicle, and the human body side module comprises a first attitude sensor and a first wireless receiving and transmitting unit which are in communication connection. The vehicle body side module comprises a second wireless transceiving unit, a second attitude sensor and a detection unit, and can detect whether the driver observes the left side, the right side or the rear side or not based on the head attitude and the vehicle body attitude of the driver in the driver examination process through the communication connection relation of the second wireless transceiving unit, the second attitude sensor and the detection unit; and the device has the characteristics of being simple in structure, easy to implement and the like, is particularly suitable for driving test compliance monitoring scenes of all motorcycles, and is convenient for practical application and popularization.

Description

Technical Field

[0001] This utility model belongs to the field of driver test assistance technology, specifically relating to a wireless transceiver device for detecting and observing the left, right and rear sides during driver testing. Background Technology

[0002] The driver's license exam is a qualification test administered by relevant departments. Only by passing this exam can one obtain a driver's license, thus legally driving motor vehicles. Driver's license exams mainly include Class A, Class B, Class C, and Class D license exams. The Class D license exam is for drivers of low-speed trucks, three-wheeled vehicles, and motorcycles.

[0003] Currently, during driver's license examinations, there is a need for compliance monitoring to periodically check whether drivers are observing left, right, or rearwards, according to regulations. While this need can be met using technologies such as video analysis of the driver's head, existing compliance monitoring solutions generally do not consider changes in vehicle posture (e.g., motorcycles tilting when turning or curving), leading to some inaccuracies in the head-turn detection results. Therefore, developing a new technology that can detect whether a driver is observing left, right, or rearwards based on their head and vehicle posture during driver's license examinations is a crucial research topic for those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a wireless transceiver device for detecting and observing the left, right, and rear sides during driver's license examinations, in order to solve the problem that existing driver's license compliance monitoring schemes have certain deviations in the detection results of drivers turning their heads because they do not consider changes in vehicle posture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a wireless transceiver device for detecting left, right, and rearward observation during driver's examinations. It includes a human-side module for fixedly wearing on the driver's head and a vehicle-side module for fixedly installing on the vehicle used for driver's examinations. The human-side module includes a first posture sensor and a first wireless transceiver unit connected in communication. The vehicle-side module includes a second wireless transceiver unit, a second posture sensor, and a detection unit for detecting whether the driver is observing the left, right, or rear based on the phase difference between two posture data. The second wireless transceiver unit is wirelessly connected to the first wireless transceiver unit. The detection unit is also wirelessly connected to both the second wireless transceiver unit and the second posture sensor. The two posture data are synchronously derived from the first posture sensor and the second posture sensor, respectively.

[0007] Based on the above-mentioned utility model content, a new solution is provided that can detect whether a driver is looking to the left, right, or rear based on the driver's head posture and vehicle posture. This solution includes a human-side module for fixedly wearing on the driver's head and a vehicle-side module for fixedly installing on the vehicle used for driver's examination. The human-side module includes a first posture sensor and a first wireless transceiver unit connected in communication. The vehicle-side module includes a second wireless transceiver unit, a second posture sensor, and a detection unit. Through their communication connection, it can detect whether the driver is looking to the left, right, or rear based on the driver's head posture and vehicle posture during the driver's examination, ensuring the accuracy of the head-turn detection results. This solution is characterized by its simple structure and ease of implementation, making it particularly suitable for compliance monitoring scenarios in driver's examinations for all motorcycles, facilitating practical application and promotion.

[0008] In one possible design, the first attitude sensor is an attitude sensor that supports a USB interface and is communicatively connected to the first wireless transceiver unit via a USB interface unit located in the human body side module.

[0009] In one possible design, the USB interface unit is implemented using a CH340G SOP16 USB bus adapter chip and its peripheral circuitry.

[0010] In one possible design, the human body side module further includes a battery charge / discharge management unit and a secondary battery, wherein the battery charge / discharge management unit is electrically connected to the secondary battery and the first attitude sensor and / or the first wireless transceiver unit, respectively.

[0011] In one possible design, the battery charge and discharge management unit is implemented using a TP5400 battery charging management and boost control chip and its peripheral circuitry.

[0012] In one possible design, the first wireless transceiver unit and the second wireless transceiver unit are respectively implemented using an ESP32-S MCU chip that integrates 2.4GHz Wi-Fi and Bluetooth functions and its peripheral circuits.

[0013] In one possible design, when the second wireless transceiver unit is implemented using an ESP32-S MCU chip with integrated 2.4GHz Wi-Fi and Bluetooth functions and its peripheral circuitry, the detection unit is integrated into the MCU chip, and the MCU chip is connected to the second attitude sensor, which uses an attitude sensor with a USB interface, via another USB interface unit located in the vehicle side module.

[0014] In one possible design, the vehicle-side module further includes an Ethernet connection unit for accessing the Ethernet network, implemented using an embedded Ethernet controller chip of model W5500 and its peripheral circuitry, wherein the Ethernet connection unit is communicatively connected to the detection unit.

[0015] In one possible design, the vehicle-side module further includes a DC-to-DC step-down unit and a power connector for plugging into the DC power output port of the driver's test vehicle, wherein the DC-to-DC step-down unit is electrically connected to the power connector and the second wireless transceiver unit, the second attitude sensor and / or the detection unit.

[0016] In one possible design, the DC-to-DC step-down unit is implemented using a step-down DC power converter chip of model XL1509 and its peripheral circuitry.

[0017] The beneficial effects of the above scheme are:

[0018] (1) This utility model creatively provides a new solution that can detect whether a driver is looking to the left, right or rear based on the driver's head posture and vehicle posture. It includes a human body side module for being fixedly worn on the driver's head and a vehicle body side module for being fixedly installed on the vehicle used for driver's test. The human body side module includes a first posture sensor and a first wireless transceiver unit that are connected in communication. The vehicle body side module includes a second wireless transceiver unit, a second posture sensor and a detection unit. Through their communication connection, it can detect whether the driver is looking to the left, right or rear based on the driver's head posture and vehicle posture during the driver's test, ensuring the accuracy of the driver's head turning detection results. It has the characteristics of simple structure and easy implementation, and is particularly suitable for compliance monitoring scenarios for all motorcycle driving tests, which is convenient for practical application and promotion. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the principle structure of a wireless transceiver device for detecting and observing the left, right, and rear sides during driver's examination, provided in an embodiment of this application.

[0021] Figure 2 This is a circuit diagram of the first wireless transceiver unit in a wireless transceiver device provided in an embodiment of this application.

[0022] Figure 3 This is a circuit diagram of a USB interface unit in a wireless transceiver provided in an embodiment of this application.

[0023] Figure 4 This is a circuit diagram of a battery charge / discharge management unit in a wireless transceiver device provided in an embodiment of this application.

[0024] Figure 5 This is a circuit diagram of an Ethernet connection unit in a wireless transceiver provided in an embodiment of this application.

[0025] Figure 6 This is a circuit diagram of a DC-to-DC step-down unit in a wireless transceiver provided in an embodiment of this application. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these embodiments without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0027] It should be understood that although the terms "first" and "second", etc., may be used herein to describe various objects, these objects should not be limited by these terms. These terms are only used to distinguish one object from another. For example, the first object may be referred to as the second object, and similarly, the second object may be referred to as the first object, without departing from the scope of the exemplary embodiments of this utility model.

[0028] It should be understood that the term "and / or" that may appear in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, or A and B exist simultaneously. Another example is A, B and / or C, which can mean that any one of A, B, and C or any combination thereof exists. The term " / and" that may appear in this document describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone or A and B exist simultaneously. In addition, the character " / " that may appear in this document generally indicates that the related objects before and after it are in an "or" relationship.

[0029] Example

[0030] like Figures 1-5 As shown in the embodiment, the wireless transceiver device provided for driver testing to detect observation of the left, right, and rear sides includes, but is not limited to, a human body side module for fixedly wearing on the driver's head and a vehicle body side module for fixedly installing on the vehicle used for driver testing. The human body side module includes, but is not limited to, a first posture sensor and a first wireless transceiver unit connected in communication. The vehicle body side module includes, but is not limited to, a second wireless transceiver unit, a second posture sensor, and a detection unit for detecting whether the driver is observing the left, right, or rear sides based on the phase difference between two posture data. The second wireless transceiver unit is wirelessly connected to the first wireless transceiver unit, and the detection unit is respectively connected in communication to the second wireless transceiver unit and the second posture sensor. The two posture data are synchronously obtained from the first posture sensor and the second posture sensor, respectively.

[0031] like Figure 1 As shown, in the specific structure of the wireless transceiver device, the human-side module can be, but is not limited to, fixedly installed on a head-wearing device such as a helmet or glasses to achieve the purpose of being fixedly worn on the driver's head. The first posture sensor is used to collect the driver's head posture data in real time and transmit the collected results to the first wireless transceiver unit in real time. This can be implemented conventionally using existing posture sensors, but is not limited to. The first wireless transceiver unit is used to wirelessly forward the posture data from the first posture sensor to the second wireless transceiver unit in real time. This can be implemented using, but is not limited to, an ESP32-S MCU (Microcontroller Unit) chip with integrated 2.4GHz Wi-Fi and Bluetooth functions and its peripheral circuitry, such as... Figure 2As shown. The vehicle-side module can be fixedly installed on a driver's test vehicle, such as a motorcycle, using conventional installation methods. The second wireless transceiver unit is used to forward attitude data from the first wireless transceiver unit and the first attitude sensor to the detection unit in real time. Specifically, it can be implemented using an ESP32-S MCU chip with integrated 2.4GHz Wi-Fi and Bluetooth functions and its peripheral circuitry. The second attitude sensor is used to collect attitude data of the driver's test vehicle in real time and transmit the collection results to the detection unit in real time. It can also be implemented using existing attitude sensors. The detection unit is used to conventionally detect whether the driver is observing left, right, or rear based on the difference between the two attitude data. For example, it first conventionally determines the vehicle yaw angle based on the attitude data of the driver's test vehicle, and conventionally determines the head yaw angle based on the head attitude data of the driver collected synchronously with the attitude data of the driver's test vehicle. Then, it calculates the difference between the vehicle yaw angle and the head yaw angle, and finally uses this difference to determine the driver's position. The system determines whether a driver is observing left, right, or rear by classifying the driver's observation range as follows: a first preset angle range for observing left, a second preset angle range for observing right, and a third preset angle range for observing rear (where no two of the aforementioned angle ranges overlap). If the difference falls within the first preset angle range, the driver is observed to the left; if it falls within the second preset angle range, the driver is observed to the right; if it falls within the third preset angle range, the driver is observed rear; if the difference does not fall within any of these three preset angle ranges, the driver is not observed left, right, or rear. Therefore, based on the aforementioned wireless transceiver device, it is possible to detect whether the driver is looking to the left, right, or rear based on the driver's head posture and vehicle posture during the driver's test, ensuring the accuracy of the head-turn detection results. It also features a simple structure and ease of implementation, making it particularly suitable for compliance monitoring scenarios in driver's test for all types of motorcycles (such as three-wheeled motorcycles, sidecar motorcycles, ordinary two-wheeled motorcycles, and mopeds), facilitating practical application and promotion.

[0032] Preferably, the first attitude sensor is an attitude sensor that supports a USB interface, and it communicates with the first wireless transceiver unit via a USB (Universal Serial Bus) interface unit located in the human body-side module. Based on the aforementioned design, the ease of plugging and unplugging of the USB interface allows for convenient replacement of different first attitude sensors (e.g., the Yabo intelligent inertial navigation module, ARHS attitude sensor, and LPMS-CURS3 series sensors) for testing and application, improving the flexibility of head attitude acquisition. Specifically, the USB interface unit can be implemented using, but is not limited to, a CH340G SOP16 USB bus adapter chip and its peripheral circuitry, such as... Figure 3 As shown.

[0033] Preferably, the human-side module further includes, but is not limited to, a battery charge / discharge management unit and a secondary battery, wherein the battery charge / discharge management unit is electrically connected to the secondary battery and the first attitude sensor and / or the first wireless transceiver unit. Based on the aforementioned design, it is also possible to achieve stable power supply to each circuit unit on the human-side side, ensuring that they can all function normally. Specifically, the battery charge / discharge management unit can be implemented using, but is not limited to, a TP5400 battery charging management and boost control chip and its peripheral circuitry, such as... Figure 4 As shown.

[0034] Preferably, when the second wireless transceiver unit is implemented using an ESP32-S MCU chip with integrated 2.4GHz Wi-Fi and Bluetooth functions and its peripheral circuitry, the detection unit is integrated into the MCU chip. This MCU chip is then connected to the second attitude sensor, which uses a USB-enabled attitude sensor, via another USB interface unit located in the vehicle-side module. Based on this design, the data processing capabilities of the MCU chip can be utilized to detect whether the driver is observing the left, right, or rear based on the driver's head posture and vehicle posture within the second wireless transceiver unit, further simplifying the circuit design. Furthermore, the ease of plugging into the USB interface allows for convenient replacement of different second attitude sensors (such as the Yabo intelligent inertial navigation module, ARHS attitude sensor, and LPMS-CURS3 series sensors) for testing and application, improving the flexibility of vehicle attitude acquisition.

[0035] Preferably, the vehicle-side module further includes, but is not limited to, an Ethernet connection unit implemented using an embedded Ethernet controller chip (model W5500) and its peripheral circuitry for Ethernet access, wherein the Ethernet connection unit is communicatively connected to the detection unit. Based on the aforementioned design, the communication capability of the Ethernet connection unit can also be utilized to easily transmit the driver's head-turning detection results to the driving test compliance monitoring server, further enhancing the practicality of the solution. Furthermore, the specific circuit structure of the Ethernet connection unit is illustrated in the following example... Figure 5 As shown.

[0036] Preferably, the vehicle-side module further includes, but is not limited to, a DC-to-DC step-down unit and a power connector for plugging into the DC power output port of the driver's test vehicle. The DC-to-DC step-down unit is electrically connected to the power connector and the second wireless transceiver unit, the second attitude sensor, and / or the detection unit. Based on the aforementioned design, it is also possible to draw power from the driver's test vehicle and provide a stable power supply to the various circuit units on the vehicle side, ensuring that they all function normally. Specifically, the DC-to-DC step-down unit can be implemented using, but is not limited to, an XL1509 step-down DC-DC converter chip and its peripheral circuitry, such as... Figure 6 As shown.

[0037] In summary, the wireless transceiver device provided in this embodiment has the following technical advantages:

[0038] (1) This embodiment provides a new solution for detecting whether a driver is looking to the left, right or rear based on the driver's head posture and vehicle posture. It includes a human body side module for being fixedly worn on the driver's head and a vehicle body side module for being fixedly installed on the vehicle used for driver's test. The human body side module includes a first posture sensor and a first wireless transceiver unit that are connected in communication. The vehicle body side module includes a second wireless transceiver unit, a second posture sensor and a detection unit. Through their communication connection, it can detect whether the driver is looking to the left, right or rear based on the driver's head posture and vehicle posture during the driver's test, ensuring the accuracy of the driver's head turning detection results. It has the characteristics of simple structure and easy implementation, and is particularly suitable for compliance monitoring scenarios for all motorcycle driving tests, which is convenient for practical application and promotion.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A wireless transceiver device for detecting observation of the left and right rear for a driver's license test, characterized by, The human body side module for fixing on the head of the driver and the vehicle body side module for fixing on the vehicle for driver test are connected by communication, the human body side module comprises a first attitude sensor and a first wireless transceiver unit, the vehicle body side module comprises a second wireless transceiver unit, a second attitude sensor and a detection unit for detecting whether the driver observes the left, right or rear according to the difference between the two attitude data, the second wireless transceiver unit is connected with the first wireless transceiver unit by wireless communication, the detection unit is connected with the second wireless transceiver unit and the second attitude sensor respectively, and the two attitude data are synchronously obtained from the first attitude sensor and the second attitude sensor respectively.

2. The wireless transceiver of claim 1, wherein, The first attitude sensor is a USB interface supported attitude sensor, and the first wireless transceiver unit is connected by a USB interface unit in the human body side module.

3. The wireless transceiver of claim 2, wherein, The USB interface unit is realized by a USB bus adapter chip with model CH340G SOP16 and its peripheral circuit.

4. The wireless transceiver of claim 1, wherein, The human body side module further comprises a battery charge and discharge management unit and a secondary battery, wherein the battery charge and discharge management unit is electrically connected with the secondary battery, the first attitude sensor and / or the first wireless transceiver unit.

5. The wireless transceiver of claim 4, wherein, The battery charge and discharge management unit is realized by a battery charge management and boost control chip with model tp5400 and its peripheral circuit.

6. The wireless transceiver of claim 1, wherein, The first wireless transceiver unit and the second wireless transceiver unit are realized by MCU chips with model ESP32-S and integrated with 2.4GHz Wi-Fi function and Bluetooth function and their peripheral circuits.

7. The wireless transceiver of claim 1, wherein, When the second wireless transceiver unit is realized by a MCU chip with model ESP32-S and integrated with 2.4GHz Wi-Fi function and Bluetooth function and its peripheral circuit, the detection unit is integrated in the MCU chip, and the MCU chip is connected with the second attitude sensor which is a USB interface supported attitude sensor through another USB interface unit in the vehicle body side module.

8. The wireless transceiver of claim 1, wherein, The vehicle body side module further comprises an Ethernet connection unit for accessing Ethernet and realized by an embedded Ethernet controller chip with model W5500 and its peripheral circuit, wherein the Ethernet connection unit is connected with the detection unit.

9. The wireless transceiver of claim 1, wherein, The vehicle body side module further comprises a DC to DC step-down unit and a power connector for plugging the DC power output port of the vehicle for driver test, wherein the DC to DC step-down unit is electrically connected with the power connector, the second wireless transceiver unit, the second attitude sensor and / or the detection unit.

10. The wireless transceiver of claim 9, wherein, The DC to DC step-down unit is realized by a step-down DC power converter chip with model XL1509 and its peripheral circuit.

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