CN206711172U - The drive recorder that a kind of auxiliary security drives - Google Patents

Abstract

The utility model discloses the drive recorder that a kind of auxiliary security drives, the display device that is connected including central processing unit and respectively with central processing unit, CCD camera assembly, the CCD camera assembly includes camera bracket and on camera bracket and the wide-angle camera, the trigger device that are electrically connected with each other, wide-angle camera also carry out data transmission with central processing unit；The wide-angle camera includes wide-angle imaging lens, handles the wide-angle single-chip microcomputer of wide-angle imaging lens epigraph data；The camera bracket includes clamp, the support body and connection clamp and support body and the universal joint of step-less adjustment of installation wide-angle camera that can be clamped on rearview mirror connecting pole；The support body sets the prefabricated chamber that trigger device is fixedly mounted.The utility model can make up the blind area of eliminating driving blind area, and can also not only reducing the interference of field of front vision, separately adjustable universal camera shoots with video-corder angle again, many-side auxiliary raising drive safety.

Description

A driving recorder for assisting safe driving

technical field

The utility model relates to the field of vehicle accessories, in particular to a driving recorder for assisting safe driving.

Background technique

With the development of society, cars are becoming more and more popular, and people are paying more and more attention to driving safety issues.

At present, the driving recorder can be said to be the black box of the vehicle. The driving recorder takes pictures through a high-definition lens to completely record the image and sound of the vehicle while driving. In this way, when an accident occurs, the information recorded by the driving recorder can immediately provide evidence, thereby protecting the driver's self-rights. In addition, for users who like to travel by car, they can also use a driving recorder to record the process of conquering difficulties and obstacles. Through the driving recorder, the user records the video while driving, and records the time, speed, and location in the video at the same time.

As shown in Figure 1, it is a schematic diagram of the field of view of a small vehicle when the existing driving recorder is installed in the car, and the driving recorder monitors the situation outside the vehicle through the front windshield. The field of view of the existing driving recorder is relatively narrow, generally 50-70°, which cannot record the "driving blind spot" in the driving process.

On the other hand, the camera device of the existing driving recorder is either adsorbed on the front windshield through a structure such as a suction cup or installed on the front fender through a bracket, or installed on the rearview mirror through a connecting piece. The former will hinder the driver's line of sight and affect driving safety; the shooting angle of the latter camera device is limited by the angle of the rearview mirror, and the shooting angle and the viewing angle of the rearview mirror interfere with each other, affecting driving safety.

Utility model content

The purpose of the utility model is to provide a driving recorder for assisting safe driving, which uses a wide-angle camera to record a wide field of view, and the field of view covers the driving blind area and provides a display to the driver to assist in improving the driving safety during driving; and , the wide-angle camera can be adjusted and installed on the back of the interior rearview mirror. The angles of the wide-angle camera and the rearview mirror are adjusted independently, which not only reduces the interference to the driver's sight, but also does not affect the use of the original rearview mirror, thereby assisting in improving driving safety.

The utility model is realized through the following technical solutions: a traffic recorder for assisting safe driving, including a central processing unit, a display device connected to the central processing unit, and a camera assembly, and the camera assembly includes a camera bracket and is installed on the camera bracket A wide-angle camera and a trigger device electrically connected to each other, and the wide-angle camera also performs data transmission with the central processing unit;

The wide-angle camera includes a wide-angle camera lens, a wide-angle single-chip microcomputer for processing image data on the wide-angle camera lens, and a power management module connected to the wide-angle single-chip microcomputer, a second USB module, and a bluetooth transmitter module;

The camera bracket includes a clip body that can be clamped on the connecting column of the rearview mirror, a frame body for installing a wide-angle camera, and a universal joint that connects the clip body and the frame body and is steplessly adjustable; the clip body includes a hinge shaft, A hard spring and two claws hinged at the hinge shaft and respectively connected to the two free ends of the hard spring; the frame body is provided with a prefabricated cavity for fixedly installing the trigger device.

In order to better realize the utility model, further, the central processing unit includes a microprocessor and an interactive control module, an image processing module, a wireless transceiver unit, a wired transceiver unit, a GPS module, and a voice module respectively connected to the microprocessor. , power module, storage module;

The microprocessor performs data analysis and processing;

The interactive control module includes keys for manual operation and an exchange control circuit that converts the actions of the keys into electrical signals and sends them to the microprocessor;

The image processing module is connected with the display device, and after the data sent by the microprocessor is visualized, it is sent to the display device for display;

The wireless transceiver unit and the wired transceiver unit are both used for data input/output; the wireless transceiver unit includes an RF receiving module and a Bluetooth receiving module for wireless communication; the wired transceiver unit includes a first USB module, the first CAN module;

The GPS module is used for GPS navigation and monitoring of vehicle speed;

The voice module is used to play voice for navigation guidance or abnormal information broadcast;

The power module is used for power supply;

The storage module includes built-in SD RAM memory and/or Flash memory for storing data.

In order to better realize the utility model, further, the driving recorder also includes a tire pressure monitoring device communicating with the central processing unit.

In order to better realize the utility model, further, the tire pressure monitoring device includes a tire pressure acquisition module connected to the vehicle CAN bus and connected to the microprocessor, the tire pressure acquisition module directly collects tire pressure parameters from the CAN bus and Send to the microprocessor through the first CAN module.

In order to better realize the utility model, further, the tire pressure monitoring device includes a pressure sensor installed in the tire of the vehicle, a tire pressure single-chip microcomputer, and an RF transmitting module. The RF transmitting module communicates wirelessly with the RF receiving module, and the pressure sensor collects The tire pressure parameters are processed by the tire pressure microcontroller and sent to the microprocessor through RF wireless communication.

In order to better realize the utility model, further, the trigger device includes a trigger microcontroller connected to the wide-angle camera and a power management module, and an acceleration sensor module connected to the trigger microcontroller; the acceleration sensor module includes a three-axis acceleration sensor and/or or a three-axis gyroscope.

In order to better realize the utility model, further, the wide-angle camera head includes a wide-angle imaging lens; the wide-angle imaging lens includes a first lens group with positive refractive power, an aperture stop, and a positive refractive lens that are sequentially arranged on the object side. The second lens group of power; The first lens group includes the first lens of the negative meniscus lens with the convex surface arranged in sequence from the object side towards the object side, the negative second lens with the surface of the image side as a concave shape, The surface on the image side is a positive third lens that is convex toward the image side; the second lens group includes a positive fourth lens that is sequentially arranged on the image side from the object side, and a positive fourth lens that is convex toward the image side, two A negative fifth lens of concave shape, and a positive sixth lens of two convex shapes.

In order to better realize the utility model, further, the wide-angle imaging lens satisfies the following conditions:

-4.0<f2/f<-2.0...(1)

3.5<f3/f<6.0...(2)

-2.5<f5/f<-1.5 ……(3)

3.0<fb/f<5.0 ……(4)

-3.0＜f12/f＜-1.2……(5)

Among them, f is the focal length of the wide-angle imaging lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f5 is the focal length of the fifth lens, fb is the composite focal length of the second lens group, f12 is the first lens and The composite focal length of the second lens.

In order to better realize the utility model, further, the universal joint includes an upper joint, a middle joint, and a lower joint connected in sequence, one end of the upper joint is connected with the hinge shaft as a whole and the other end is provided with a first Groove, one end of the middle section rod is provided with the first ball head socketed with the first groove and the other end is provided with the second groove, one end of the lower section rod is provided with the second ball head socketed with the second groove and the other end is connected with the second groove The bracket is connected as a whole; the first groove and the first ball head, the second groove and the second ball head are respectively provided with rubber sleeves for damping effect.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) In this utility model, a wide-angle camera is used for video recording, which has a wider field of view than ordinary cameras and can cover driving blind spots; the images collected by the wide-angle camera can be displayed through the display device, which can assist the driver in the driving process. Observation of blind spots to improve driving safety;

(2) The camera bracket with a universal connector in the utility model, on the one hand, can install the wide-angle camera behind the rearview mirror of the car to reduce the interference of the driver's front line of sight; on the other hand, can install the wide-angle camera The camera angle is adjusted separately, so that the rearview mirror angle adjustment and the wide-angle camera angle adjustment are separated independently and do not interfere with each other, so as to ensure the normal use of the respective functions of the rearview mirror and the wide-angle camera, thereby assisting in improving driving safety;

(3) A trigger device is set in the wide-angle camera in the utility model, and when the wide-angle camera is dormant, it can also be automatically awakened to work under special circumstances such as vehicle collisions;

(4) The central processor of this utility model communicates with the wide-angle camera and the tire pressure monitoring device through wired or wireless communication, collects the recorded images or tire pressure data and gives feedback, thereby assisting in improving driving safety;

(5) The voice module is installed in the central processor of the utility model, and the GPS module can be used for voice navigation, and the collected tire pressure parameters can be used for abnormal tire pressure alarm, thereby assisting in improving driving safety.

Description of drawings

FIG. 1 is a schematic view of the field of view of a prior art driving recorder installed in the front of a car.

Fig. 2 is a schematic diagram of the connection relationship of the utility model in embodiment 1.

FIG. 3 is a schematic structural diagram of a wide-angle imaging lens and a CCD imaging element in Embodiment 2. FIG.

Fig. 4 is a schematic diagram of the connection relationship of the utility model in embodiment 3.

FIG. 5 is a schematic diagram of the internal connections of the central processing unit.

Fig. 6 is a schematic diagram of the connection relationship when the tire pressure parameters are collected directly in the first case in Embodiment 4.

Fig. 7 is a schematic diagram of the connection relationship when tire pressure parameters are indirectly collected in the second case in Embodiment 4.

FIG. 8 is a schematic structural diagram of a camera bracket.

Among them: 1. Articulation shaft; 2. Hard spring; 3. Claw; 4. Upper section bar; 5. Middle section bar; 6. Lower section bar; 7. Frame body; 71. Prefabricated cavity; 001. Wide-angle camera 11. First lens; 12. Second lens; 13. Third lens; 14. Fourth lens; 15. Fifth lens; 16. Sixth lens; 21. CCD imaging element; 002. Tire pressure monitoring device.

detailed description

The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto. It is to be understood that the terms "portrait", "landscape", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed, and operate in a specific orientation and therefore should not be construed as limiting the invention.

Example 1:

A driving recorder for assisting safe driving in this embodiment, as shown in Figure 2, includes a central processing unit, a display device connected to the central processing unit, and a camera assembly, and the camera assembly includes a camera bracket and is installed on the camera bracket The wide-angle camera 001 and the trigger device are electrically connected to each other, and the wide-angle camera 001 also performs data transmission with the central processing unit.

The wide-angle camera 001 includes a wide-angle camera lens, a wide-angle single-chip microcomputer for processing image data on the wide-angle camera lens, and a power management module, a second USB module, and a bluetooth transmitter module respectively connected to the wide-angle single-chip microcomputer.

The camera bracket includes a clip body that can be clamped on the connecting column of the rearview mirror, a frame body 7 for installing a wide-angle camera 001, and a universal joint that connects the clip body and the frame body 7 and is steplessly adjustable; the clip body includes The hinge shaft 1, the hard spring 2 and the two claws 3 which are hinged at the hinge shaft 1 and respectively connected to the two free ends of the hard spring 2; the frame body 7 is provided with a prefabricated cavity 71 for fixing the trigger device.

Generally, the wide-angle camera 001 sold on the market has a field of view of 90°-170°. Of course, there are also ultra-wide-angle cameras with a field of view exceeding 180°. The display device is a liquid crystal display, and exchanges data with the microprocessor through a USB data line.

In this embodiment, the wide-angle camera 001 is installed in front of the car and behind the car to record the key field of view through the glass to the front of the car and the rear of the car, respectively; or, the wide-angle camera 001 is installed in the front and rear of the vehicle , left, and right for 360° full-view video recording. The recorded video data stream is sent to the central processing unit through the USB data cable or bluetooth, processed by the central processing unit and then sent to the display device for display. On the other hand, the clip body with adjustable opening can be firmly clamped on the connecting column of the rearview mirror with the help of the structure of the hinge spring, which can be firmly connected and easily disassembled; at the same time, the wide-angle camera 001 is connected through a stepless universal connection The installation angle can be adjusted independently without affecting the use of the original rearview mirror.

The present embodiment has the following technical effects: one, the wide-angle camera 001 carries out video recording of a large field of view through the wide-angle camera lens, and the image is displayed on the display device through the central processing unit to assist the driver to observe the situation ahead of the front of the car. Since the field of view of the camera can cover the driving blind spot, it can help improve driving safety. The second is that the wide-angle camera 001 is detachably installed on the connecting column of the interior rearview mirror through the camera bracket, so as to avoid the situation where there are too many items in the front area of the driving and affect the driving. Stepless adjustment of the angle, so that the adjustment of the angle of the rearview mirror and the adjustment of the angle of the wide-angle camera 001 are independent of each other and do not interfere with each other. The third is that when the wide-angle camera 001 is dormant, the trigger device will automatically wake up the wide-angle camera 001 to record when it is stimulated by external information, so as to better record the situation around the vehicle. For example, when the vehicle is parked and turned off, the wide-angle camera 001 is generally in a dormant state to save energy consumption. However, if the car is suddenly hit by another vehicle, the impact will trigger the trigger device, thereby triggering the wide-angle camera 001 to quickly enter the working state for video recording. .

Example 2:

In order to realize the utility model better in this embodiment on the basis of Embodiment 1, the present embodiment is shown in Figure 3, and the wide-angle camera 001 also includes a lens barrel installed with a wide-angle camera lens and a camera installed at the imaging place of the wide-angle camera lens CCD imaging element 21, CCD imaging element 21 communicates with wide-angle single-chip microcomputer; Described wide-angle photographic lens comprises the first lens group with positive refractive power, aperture stop, the second lens group with positive refractive power arranged in turn with object side; The first lens group includes a first lens 11 of a negative meniscus lens with a convex surface facing the object side, a negative second lens 12 whose surface on the image side is concave, and a surface on the image side that is sequentially arranged from the object side. A positive third lens 13 that is convex toward the image side; the second lens group includes a positive fourth lens 14 that is convex toward the image side, and two concave lenses that are arranged in sequence from the object side. A negative fifth lens 15 and a positive sixth lens 16 of two convex shapes.

The wide-angle single-chip microcomputer is respectively connected with the CCD imaging element 21, the second USB module, the bluetooth transmitting module, and the power management module. The CCD imaging element 21 includes a CCD board, an amplifier, and an A/D converter connected in sequence, and the A/D converter sends video data to the central processing unit through a second USB module or a bluetooth transmitting module. The working principle of the CCD imaging element 21 is the existing common knowledge, so it will not be repeated here.

Further, the wide-angle imaging lens satisfies the following conditions:

-4.0<f2/f<-2.0...(1)

3.5<f3/f<6.0...(2)

-2.5<f5/f<-1.5 ……(3)

3.0<fb/f<5.0 ……(4)

-3.0＜f12/f＜-1.2……(5)

Wherein, f is the focal length of the wide-angle imaging lens, f2 is the focal length of the second lens 12, f3 is the focal length of the third lens 13, f5 is the focal length of the fifth lens 15, fb is the combined focal length of the second lens group, and f12 is the focal length of the second lens group. The composite focal length of the first lens 11 and the second lens 12.

Further, an opaque plate is arranged outside the effective diameter between the first lens 11 and the second lens 12 as a light-shielding mechanism to prevent ghosting. Both surfaces of the second lens 12 , the third lens 13 , and the fourth lens 14 are aspherical surfaces, so that superior resolution can be obtained with a relatively short overall length, and imaging clarity can be improved.

In this embodiment, through the above-mentioned structure, a high-resolution video signal with a viewing angle exceeding 150° can be obtained. The imaging principle of the wide-angle imaging lens is well known to the public, so it will not be repeated here.

Other parts of this embodiment are the same as those of Embodiment 1, so details are not repeated here.

Example 3:

In order to better realize the present invention on the basis of Embodiment 1 or 2, this embodiment is shown in Figure 4. A traffic recorder for assisting safe driving includes a central processing unit and devices connected to the central processing unit respectively. A camera assembly, a tire pressure monitoring device 002, and a display device.

The video signal collected by the camera module and the tire pressure signal collected by the tire pressure monitoring device 002 are converted into corresponding electrical signals and then sent to the display device for display by the central processing unit, which is convenient for the driver to observe the situation around the vehicle and whether the tire pressure value is normal. Thereby assisting in improving driving safety.

Further, as shown in Figure 5, the central processing unit includes a microprocessor and an interactive control module, an image processing module, a wireless transceiver unit, a wired transceiver unit, a GPS module, a voice module, a power module, storage module.

The microprocessor performs data analysis and processing. According to the data collected by the GPS module, the microprocessor performs voice navigation and real-time vehicle speed collection through the voice module, and the collected vehicle speed information is displayed on the display device through the image processing module. The microprocessor includes a 64-bit ARM processor and at least one 16-bit microcontroller connected to the AEM processor. Both the trigger single-chip microcomputer and the tire pressure single-chip microcomputer are DSP chips. The microprocessor, the trigger single-chip microcomputer, and the tire pressure single-chip microcomputer can directly purchase the corresponding chips in the market for assembly. The utility model only uses it for simple data analysis and processing, and does not improve its internal structure. repeat.

The interactive control module includes keys for manual operation and an exchange control circuit that converts the actions of the keys into electrical signals and sends them to the microprocessor. Manual operation can be used to manually operate the central controller, such as volume adjustment during voice playback, video selection during video viewing, and so on.

The image processing module is connected with the display device, and the data sent by the microprocessor is visualized and then sent to the display device for display. The image processing module includes a video synthesis unit for correcting and processing images collected by the wide-angle camera 001, and a digital unit for converting tire pressure signals into numerical values for display. The video synthesizing unit has been disclosed, such as the patent document CN201010590428.8 and the patent title: A Panoramic Parking Assistance System, which are described in detail and will not be repeated here.

The wireless transceiver unit and the wired transceiver unit are both used for data input/output; the wireless transceiver unit includes an RF receiving module and a Bluetooth receiving module for wireless communication; the wired transceiver unit includes a first USB module, first CAN module. The RF receiving module performs RF wireless communication with the RF transmitting module in the tire pressure monitoring device 002 . The bluetooth receiving module performs bluetooth wireless communication with the bluetooth transmitting modules installed in each wide-angle camera 001 . The first USB module is connected with the second USB module of the wide-angle camera 001 by USB cable, so as to transmit the video files recorded by the wide-angle camera 001 better. The first CAN module is connected with the tire pressure monitoring device 002 .

The GPS module is used for GPS navigation and monitoring information such as speed per hour, position, driving route, altitude and the like of the vehicle. Information such as the speed per hour, position, driving route, and altitude of the vehicle collected by the GPS module is stored in the storage module through the microprocessor, or is visually displayed on the display device through the image processing module. Visual display is an existing technology. This embodiment only uses the existing technology to achieve the effect of visual display. The improvement point is not visualization. Therefore, the specific model, connection relationship, and working principle of the image processing module will not be repeated here.

The voice module is used to play voice for navigation guidance or abnormal information broadcast. The abnormal information broadcasting means that when the tire pressure data is abnormal, the microprocessor notifies the voice module to call the pre-stored voice file to alarm the abnormal tire pressure information. The voice module can be an independent voice player, or a device connected to the vehicle audio playback system.

The power supply module is used for power supply of the entire driving recorder. The power supply module is connected to the battery of the vehicle, and converts the electric energy in the battery into a corresponding power supply voltage for the display device, the central processing unit, the camera assembly, and the wheel pressure monitoring device.

The storage module includes built-in SD RAM memory and/or Flash memory for storing data.

Other parts of this embodiment are the same as those of Embodiment 1 or 2, so details are not repeated here.

Example 4:

This embodiment is based on Embodiment 3 in order to better realize the utility model. In this embodiment, the tire pressure monitoring device 002 collects tire pressure signals and sends them to the central processing unit. Two different connection relationships .

As shown in Figure 6, in the first type, the tire pressure monitoring device 002 includes a tire pressure acquisition module connected to the CAN bus of the vehicle and connected to the microprocessor. The tire pressure acquisition module directly collects tire pressure parameters from the CAN bus and passes The first CAN module sends to the microprocessor. For the mainstream mid-to-high-end models currently on the market, the vehicle itself already has a tire pressure monitoring function, and the tire pressure data is usually transmitted through the CAN bus inside the vehicle. Here, the tire pressure monitoring function can be realized by a tire pressure monitoring system TPMS (Tire Pressure Monitoring System). In this case, this embodiment can adopt the structure that the tire pressure acquisition module directly collects the tire pressure parameters from the CAN bus, and records and displays the tire pressure parameters in the driving recorder. As one of the monitoring parameters, when the tire pressure parameter is abnormal, the microprocessor will notify the voice module to perform a voice alarm reminder.

As shown in Figure 7, in the second type, the tire pressure monitoring device 002 includes a pressure sensor arranged in the tire of the vehicle, a tire pressure single-chip microcomputer, and an RF transmitting module. The tire pressure parameters are processed by the tire pressure microcontroller and sent to the microprocessor through RF wireless communication. For most of the low-end models currently on the market or models that leave the factory earlier, the vehicle itself does not have a tire pressure monitoring function, so a pressure sensor needs to be installed on the tire, and the tire pressure parameters collected by the pressure sensor are analyzed and processed by the tire pressure microcontroller. , which is sent wirelessly to the central processor by the RF transmitter module, and the tire pressure parameters are sent to the microprocessor by the RF receiver module for analysis and comparison.

Other parts in this embodiment are the same as those in Embodiment 3, so details are not repeated here.

Example 5:

This embodiment is further optimized on the basis of any one of Embodiments 1-4, the trigger device includes a trigger microcontroller connected to the wide-angle camera 001 and a power management module, and an acceleration sensor module connected to the trigger microcontroller; the acceleration sensor module includes A three-axis accelerometer and/or a three-axis gyroscope. The acceleration sensor module is an original component with low power consumption. Under the control of the power management module, the acceleration sensor module can still work normally when the vehicle is turned off and parked. When the vehicle is suddenly hit, the acceleration sensor module detects the sudden change in acceleration caused by the collision and sends a high level to the power management module, prompting the power management module to supply power to the wide-angle camera 001 and wake up the wide-angle camera 001 to quickly enter the working state and perform video videotape. This structure can effectively capture and record the video of the vehicle's surrounding environment in case of an emergency.

Other parts in this embodiment are the same as any one of Embodiments 1-4, so details are not repeated here.

Embodiment 6:

This embodiment is further optimized on the basis of any one of Embodiments 1-5. The universal joint includes the upper joint rod 4, the middle joint rod 5, and the lower joint rod 6 connected in sequence, and one end of the upper joint rod 4 is connected to the hinge shaft. 1 is connected as a whole and the other end is provided with a first groove, one end of the middle section rod 5 is provided with a first ball joint socketed with the first groove and the other end is provided with a second groove, and one end of the lower section rod 6 is provided with a second groove. The groove is socketed with the second ball head and the other end is connected with the bracket as a whole; the first groove and the first ball head, the second groove and the second ball head are respectively provided with rubber sleeves for damping effect.

In this embodiment, wide-angle photography with clear images and high resolution is realized through the above structure.

Other parts in this embodiment are the same as any one of Embodiments 1-5, so they are not repeated here.

Embodiment 7:

This embodiment is further optimized on the basis of any one of Embodiments 1-6. A driving recorder for assisting safe driving includes a central processing unit and a display device and a camera assembly respectively connected to the central processing unit. It is characterized in that the The camera assembly includes a camera bracket, a wide-angle camera 001 installed on the camera bracket and electrically connected to each other, and a trigger device. The wide-angle camera 001 also performs data transmission with the central processing unit.

The wide-angle camera 001 includes a wide-angle camera lens, a wide-angle single-chip microcomputer for processing image data on the wide-angle camera lens, and a power management module, a second USB module, and a bluetooth transmission module respectively connected to the wide-angle single-chip microcomputer.

As shown in Figure 8, the camera bracket includes a clip body that can be clamped on the connecting column of the rearview mirror, a frame body 7 for installing the wide-angle camera 001, and a universal joint that connects the clip body and the frame body 7 and is steplessly adjustable. The clip body includes a hinged shaft 1, a hard spring 2 and two claws 3 that are hinged at the hinged shaft 1 and are respectively connected to the two free ends of the hardened spring 2; Prefabricated chamber 71.

The universal joint includes an upper joint rod 4, an intermediate joint rod 5, and a lower joint rod 6 connected in sequence. One end of the upper joint rod 4 is connected to the hinge shaft 1 as a whole and the other end is provided with a first groove. The middle joint rod 5 One end is provided with a first ball head socketed with the first groove and the other end is provided with a second groove, one end of the lower joint 6 is provided with a second ball head socketed with the second groove and the other end is connected with the bracket as a whole; The first groove and the first ball head, the second groove and the second ball head are respectively provided with rubber sleeves with a damping effect.

Other parts in this embodiment are the same as any one of Embodiments 1-6, so details are not repeated here.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model.

Claims (9)

1. A driving recorder for assisting safe driving, comprising a central processing unit and a display device and a camera assembly connected to the central processing unit respectively, it is characterized in that the camera assembly includes a camera bracket and is installed on the camera bracket and electrically connected to each other The wide-angle camera (001) and the trigger device are connected, and the wide-angle camera (001) also performs data transmission with the central processing unit; The wide-angle camera (001) includes a wide-angle camera lens, a wide-angle single-chip microcomputer for processing image data on the wide-angle camera lens, and a power management module connected to the wide-angle single-chip microcomputer, a second USB module, and a Bluetooth transmitter module; The camera bracket includes a clamp body that can be clamped on the connecting column of the rearview mirror, a frame body (7) for installing a wide-angle camera (001), and a universal joint that connects the clip body and the frame body (7) and is steplessly adjustable ; The clip body includes a hinge shaft (1), a hard spring (2) and two claws (3) hinged at the hinge shaft (1) and respectively connected to the two free ends of the hard spring (2); The frame body (7) is provided with a prefabricated cavity (71) for fixedly installing the trigger device. 2. A kind of traffic recorder for assisting safe driving according to claim 1, characterized in that: said central processing unit includes a microprocessor and an interactive control module connected with the microprocessor respectively, an image processing module, a wireless transceiver unit, wired transceiver unit, GPS module, voice module, power module, storage module; The microprocessor performs data analysis and processing; The interactive control module includes keys for manual operation and an exchange control circuit that converts the actions of the keys into electrical signals and sends them to the microprocessor; The image processing module is connected with the display device, and after the data sent by the microprocessor is visualized, it is sent to the display device for display; The wireless transceiver unit and the wired transceiver unit are both used for data input/output; the wireless transceiver unit includes an RF receiving module and a Bluetooth receiving module for wireless communication; the wired transceiver unit includes a first USB module, the first CAN module; The GPS module is used for GPS navigation and monitoring of vehicle speed; The voice module is used to play voice for navigation guidance or abnormal information broadcast; The power module is used for power supply; The storage module includes built-in SD RAM memory and/or Flash memory for storing data. 3. A driving recorder for assisting safe driving according to claim 2, characterized in that the driving recorder further comprises a tire pressure monitoring device (002) communicating with a central processing unit. 4. A driving recorder for assisting safe driving according to claim 3, characterized in that: the tire pressure monitoring device (002) includes a tire pressure acquisition module connected to the CAN bus of the vehicle and connected to a microprocessor, The tire pressure collection module directly collects tire pressure parameters from the CAN bus and sends them to the microprocessor through the first CAN module. 5. A driving recorder for assisting safe driving according to claim 3, characterized in that: the tire pressure monitoring device (002) includes a pressure sensor installed in the vehicle tire, a tire pressure single-chip microcomputer, and an RF transmitting module, The RF transmitting module communicates wirelessly with the RF receiving module, and the tire pressure parameters collected by the pressure sensor are processed by the tire pressure single-chip microcomputer and sent to the microprocessor through RF wireless communication. 6. A traffic recorder for assisting safe driving according to any one of claims 1-5, characterized in that: the trigger device includes a trigger microcontroller connected to a wide-angle camera (001) and a power management module, and a trigger An acceleration sensor module connected to the single-chip computer; the acceleration sensor module includes a three-axis acceleration sensor and/or a three-axis gyroscope. 7. A traffic recorder for assisting safe driving according to any one of claims 1-5, characterized in that: the wide-angle camera (001) also includes a lens barrel installed with a wide-angle camera lens and a lens barrel installed on the wide-angle camera lens The CCD imaging element (21) at the imaging place, and the CCD imaging element (21) communicates with the wide-angle single-chip microcomputer; the wide-angle imaging lens includes a first lens group with positive refractive power, an aperture stop, and a positive refractive power that are sequentially arranged on the object side. The second lens group of force; the first lens group includes the first lens (11) of the negative meniscus lens with the convex surface facing the object side arranged in sequence from the object side, and the negative first lens (11) with the concave surface on the image side Two lenses (12), a positive third lens (13) whose surface on the image side is convex toward the image side; the second lens group includes the surface on the image side arranged in sequence from the object side and is convex toward the image side A positive fourth lens (14) in two concave shapes, a negative fifth lens (15) in two concave shapes, and a positive sixth lens (16) in two convex shapes. 8. A driving recorder for assisting safe driving according to claim 7, wherein the wide-angle imaging lens satisfies the following conditions: -4.0<f2/f<-2.0...(1) 3.5<f3/f<6.0...(2) -2.5<f5/f<-1.5 ……(3) 3.0<fb/f<5.0 ……(4) -3.0＜f12/f＜-1.2……(5) Among them, f is the focal length of the wide-angle imaging lens, f2 is the focal length of the second lens (12), f3 is the focal length of the third lens (13), f5 is the focal length of the fifth lens (15), fb is the focal length of the second lens group The composite focal length, f12 is the composite focal length of the first lens (11) and the second lens (12). 9. A traffic recorder for assisting safe driving according to any one of claims 1-5, characterized in that: the universal joint includes an upper joint (4), a middle joint (5) connected in sequence ), the lower joint rod (6), one end of the upper joint rod (4) is connected with the hinge shaft (1) as a whole and the other end is provided with the first groove, and one end of the middle joint rod (5) is provided with a socket socketed with the first groove The first ball head and the second groove are arranged at the other end, and the second ball head that is socketed with the second groove is arranged at one end of the lower joint (6), and the other end is connected with the bracket as a whole; the first groove and the first groove The first ball head, the second groove and the second ball head are respectively provided with rubber sleeves with a damping effect.