阅读说明：本技术 一种智能控制雨刮及大灯的行车记录仪 (Vehicle event data recorder of intelligent control windscreen wiper and headlight ) 是由 叶剑斌 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种智能控制雨刮及大灯的行车记录仪,包括后框(1)及安装在后框(1)的上的与车辆BCM连接的USB接口(2)、电源接口(3)、数字摄像头(4)、太阳能板(5)和控制主板(8)；控制主板(8)上安装有DSP数字信号处理器(9)、存储器A(10)、单片机(11)、电源模块(12)、电流传感器A(13)、报警模块(14)存储器B(15)和存储器C(16)；后框(1)一侧设置有前板(17)；前板(17)的上设置有卡块(18),后框(1)的上设有卡槽(19)；前板(17)中部设有屏幕安装槽(20),屏幕安装槽(20)内安装有显示屏(21)。本发明不仅能够降低车辆配置成本,还具有装配和使用方便、拆装方便和适用范围广的优点。(The invention discloses a vehicle event data recorder for intelligently controlling windscreen wipers and headlights, which comprises a rear frame (1), a USB interface (2) which is arranged on the rear frame (1) and connected with a BCM (body control module) of a vehicle, a power interface (3), a digital camera (4), a solar panel (5) and a control main board (8); a DSP (digital signal processor) 9, a memory A10, a singlechip 11, a power module 12, a current sensor A13, an alarm module 14, a memory B15 and a memory C16 are arranged on the control mainboard 8; a front plate (17) is arranged on one side of the rear frame (1); a clamping block (18) is arranged on the front plate (17), and a clamping groove (19) is arranged on the rear frame (1); a screen mounting groove (20) is formed in the middle of the front plate (17), and a display screen (21) is mounted in the screen mounting groove (20). The invention not only can reduce the vehicle configuration cost, but also has the advantages of convenient assembly and use, convenient disassembly and assembly and wide application range.)

1. The utility model provides an automobile data recorder of intelligent control windscreen wiper and headlight which characterized in that: the vehicle BCM power supply comprises a rear frame (1), wherein a USB interface (2) connected with a vehicle BCM is installed on the bottom surface of the rear frame (1), and a power supply interface (3) is arranged on one side of the USB interface (2); a digital camera (4) is arranged on the back surface of the rear frame (1), and a solar panel (5) is arranged on one side of the digital camera (4); a control mainboard (8) is arranged in the rear frame (1), and a DSP (digital signal processor) (9) is installed on the control mainboard (8); a memory A (10) is arranged on one side of the DSP (9), and a singlechip (11) is arranged on the other side; a power supply module (12) is arranged on one side of the singlechip (11), a current sensor A (13) is arranged on the other side of the singlechip (11), and an alarm module (14) is arranged on one side of the power supply module (12); one side of the memory A (10) is provided with a plurality of memories B (15) which are connected in series, and the other side is provided with a memory C (16); a front plate (17) is arranged on one side of the rear frame (1); clamping blocks (18) are arranged on two sides of the front plate (17), clamping grooves (19) are arranged on two side walls of the rear frame (1) at positions corresponding to the clamping blocks (18), and the clamping blocks (18) are clamped with the clamping grooves (19) mutually; a screen mounting groove (20) is formed in the middle of the front plate (17), and a display screen (21) is mounted in the screen mounting groove (20); the USB interface (2), the DSP (digital signal processor) 9, the current sensor A (13) and the alarm module (14) are electrically connected with the singlechip (11); and the power module (12) and the current sensor A (13) are electrically connected with the solar panel (5).

2. The automobile data recorder of claim 1, wherein the wiper and the headlamp are intelligently controlled, and the automobile data recorder is characterized in that: a first mounting hole (22) is formed in the position, corresponding to the digital camera (4), on the back surface of the rear frame (1), and a second mounting hole (23) is formed in the position, corresponding to the solar panel (5), on the back surface of the rear frame (1); a rotating head (24) is arranged on the top surface of the rear frame (1), and a sucking disc (25) is arranged on the rotating head (24); a plurality of mounting blocks (26) which are vertically and uniformly distributed are mounted on the two inner side walls of the rear frame (1), and a groove (27) is formed in each mounting block (26); all install a plurality of vertical evenly distributed's inserted block (28) on the both sides wall of control mainboard (8), inserted block (28) set up in recess (27).

3. The automobile data recorder of claim 1, wherein the wiper and the headlamp are intelligently controlled, and the automobile data recorder is characterized in that: the digital camera (4) and the memory A (10) are both connected with the input end of the DSP digital signal processor (9); a reference picture of clear day weather based on the view angle of the vehicle window is stored in the memory A (10) and serves as a reference picture; the digital camera (4) firstly sends the shot video data to the DSP (digital signal processor) (9) in real time; the DSP digital signal processor (9) compares the video data of the digital camera (4) with the reference picture, judges the fuzzy degree and the brightness difference of the video data of the digital camera (4) relative to the reference picture, and takes the fuzzy degree and the brightness difference as judgment signals; and finally, sending the judgment signal to a single chip microcomputer (11).

4. The automobile data recorder of claim 3, wherein the wiper and the headlamp are intelligently controlled, and the automobile data recorder comprises: a CAN network (29) is connected between the USB interface (2) and the vehicle BCM, the single chip microcomputer (11) transmits data with the vehicle BCM through the CAN network (29), the memory C (16) is connected with the input end of the single chip microcomputer (11), and reference current parameters generated by the solar panel in the daytime are stored in the memory C (16); the current sensor A (13) firstly sends the detected current value generated by the solar panel (5) to the single chip microcomputer (11) in real time, and the single chip microcomputer (11) compares the current value with the reference current parameter and judges the current difference between the current value and the reference current parameter; and finally, the singlechip (11) converts and analyzes the judgment signal and the current difference to obtain a control signal, and sends the control signal to the vehicle BCM through the CAN network (29), and the vehicle BCM controls the running speed of the windscreen wiper and the brightness of the headlamp.

5. The automobile data recorder of claim 4, wherein the wiper and the headlamp are intelligently controlled, and the automobile data recorder comprises: the conversion analysis is that the fuzzy degree in the judgment signal is converted into the running speed parameter of the windscreen wiper, and the running speed parameter of the windscreen wiper is larger when the fuzzy degree is larger; converting the brightness difference in the judgment signal into a brightness parameter A of the headlamp, wherein the brightness parameter A of the headlamp is zero when the brightness difference is positive, and the brightness parameter A of the headlamp is larger when the brightness difference is negative and the brightness difference is smaller; meanwhile, the current difference is converted into a brightness parameter A ' of the headlamp, the current difference is positive, the brightness parameter A ' of the headlamp is zero, and when the current difference is negative, the current difference value is smaller, and the brightness parameter A ' of the headlamp is larger; then, difference calculation is carried out on the brightness parameter A and the brightness parameter A' to obtain delta A, absolute value | delta A | is obtained through absolute calculation of the delta A, the absolute value | delta A | is compared with a reference parameter range set in the single chip microcomputer (11), and whether the | delta A | is in the reference parameter range or not is judged; taking the average value of the brightness parameter A of the headlamp and the brightness parameter A' of the headlamp as the brightness parameter of the headlamp when the absolute value delta A is within the reference parameter range; if the [ delta A ] is not within the reference parameter range, the singlechip (11) controls the alarm module (14) to start, and the brightness parameter of the headlamp is set to be zero; and finally, taking the running speed parameter of the windscreen wiper and the brightness parameter of the headlamp as control signals.

6. The automobile data recorder of claim 1, wherein the wiper and the headlamp are intelligently controlled, and the automobile data recorder is characterized in that: the power supply module (12) comprises a mounting plate (30), and an internal power supply (31) is arranged on the mounting plate (30); one side of the internal power supply (31) is connected with a current sensor B (32), and the current sensor B (32) is connected with the power supply interface (3); the single chip microcomputer (11) is electrically connected with a vibration sensor (33), and the vibration sensor (33) is used for detecting abnormal vibration of the vehicle; the vibration sensor (33) converts the detected abnormal vibration of the vehicle into an electric signal and sends the electric signal to the singlechip (11), and the singlechip (11) controls the current sensor B (32) to detect the current value at the power interface (3); when the current value is positive, the singlechip (11) directly controls the DSP (digital signal processor) (9) and the current sensor A (13) to start; when the current value is zero, the singlechip (11) controls the internal power supply (31) to supply power, and then controls the digital camera (4), the DSP (9) and the current sensor A (13) to start.

7. A vehicle event data recorder of intelligent control windscreen wiper and headlight as claimed in any one of claims 1 to 6 wherein: the memory B (15) is connected with the digital camera (4), and at least two memories B (15) are arranged and used for storing video data shot by the digital camera (4).

Technical Field

The invention belongs to the field of automotive electronics, and particularly relates to a vehicle event data recorder for intelligently controlling a wiper and a headlamp.

Background

In the existing automotive electronics field, a vehicle event data recorder, an automatic wiper, an automatic light control and the like are common, but the functions are separately and independently designed from the vehicle, if the automatic wiper needs to be independently configured and installed with a rainfall sensor, the automatic light control can be realized by configuring an ambient light sensor to detect external light, and the cost of the whole vehicle is increased when the functions are realized; moreover, the addition of these independent designs also makes the structure of the vehicle complex, not only inconvenient to assemble, but also unsuitable for most of ordinary vehicle owners, and has a small application range. Therefore, how to solve the problem that the automatic wiper and the automatic light control function can be realized under the condition that the vehicle is not provided with a rainfall sensor and an ambient light sensor is a current urgent need to be solved.

Disclosure of Invention

The invention aims to provide a vehicle event data recorder for intelligently controlling a wiper and a headlamp. The invention not only can reduce the cost, but also has the advantages of convenient assembly and wide application range.

The technical scheme of the invention is as follows: a vehicle event data recorder for intelligently controlling a wiper and a headlamp comprises a rear frame, wherein a USB interface connected with a BCM (body control module) of a vehicle is installed on the bottom surface of the rear frame, and a power supply interface is arranged on one side of the USB interface; a digital camera is arranged on the back surface of the rear frame, and a solar panel is arranged on one side of the digital camera; a control mainboard is arranged in the rear frame, and a DSP (digital signal processor) is arranged on the control mainboard; one side of the DSP is provided with a memory A, and the other side is provided with a singlechip; one side of the single chip microcomputer is provided with a power supply module, the other side of the single chip microcomputer is provided with a current sensor A, and one side of the power supply module is provided with an alarm module; one side of the memory A is provided with a plurality of memories B which are connected in series, and the other side of the memory A is provided with a memory C; a front plate is arranged on one side of the rear frame; clamping blocks are arranged on two sides of the front plate, clamping grooves are formed in the positions, corresponding to the clamping blocks, of the two side walls of the rear frame, and the clamping blocks are clamped with the clamping grooves; a screen mounting groove is formed in the middle of the front plate, and a display screen is mounted in the screen mounting groove; the USB interface, the DSP digital signal processor, the current sensor A and the alarm module are electrically connected with the single chip microcomputer; and the power module and the current sensor A are electrically connected with the solar panel.

In the automobile data recorder for intelligently controlling the wiper and the headlamp, a first mounting hole is formed in the position, corresponding to the digital camera, on the back surface of the rear frame, and a second mounting hole is formed in the position, corresponding to the solar panel, on the back surface of the rear frame; the top surface of the rear frame is provided with a rotating head, and the rotating head is provided with a sucking disc; a plurality of mounting blocks which are vertically and uniformly distributed are mounted on the two inner side walls of the rear frame, and a groove is formed in each mounting block; all install a plurality of vertical evenly distributed's inserted block on the both sides wall of control mainboard, the inserted block setting is in the recess.

In the automobile data recorder for intelligently controlling the wiper and the headlamp, the digital camera and the memory A are both connected with the input end of the DSP; a reference picture of clear weather in the daytime based on the view angle of the vehicle window is stored in the memory A and serves as a reference picture; the digital camera firstly sends the shot video data to the DSP in real time; the DSP compares the video data of the digital camera with the reference picture, judges the fuzzy degree and the brightness difference of the video data of the digital camera relative to the reference picture, and takes the fuzzy degree and the brightness difference as judgment signals; and finally, sending the judgment signal to the singlechip.

In the automobile data recorder for intelligently controlling the wiper and the headlamp, a CAN network is connected between the USB interface and the vehicle BCM, the single chip microcomputer performs data transmission with the vehicle BCM through the CAN network, the memory C is connected with an input end of the single chip microcomputer, and reference current parameters generated by the solar panel in the daytime are stored in the memory C; the current sensor A sends a detected current value generated by the solar panel to the single chip microcomputer in real time, and the single chip microcomputer compares the current value with a reference current parameter and judges a current difference between the current value and the reference current parameter; and finally, the singlechip converts and analyzes the judgment signal and the current difference to obtain a control signal, and sends the control signal to the vehicle BCM through the CAN network, and the vehicle BCM controls the running speed of the windscreen wiper and the brightness of the headlamp.

In the automobile data recorder for intelligently controlling the windscreen wiper and the headlamp, the conversion analysis is that the fuzzy degree in the judgment signal is converted into the running speed parameter of the windscreen wiper, and the larger the fuzzy degree is, the larger the running speed parameter of the windscreen wiper is; converting the brightness difference in the judgment signal into a brightness parameter A of the headlamp, wherein the brightness parameter A of the headlamp is zero when the brightness difference is positive, and the brightness parameter A of the headlamp is larger when the brightness difference is negative and the brightness difference is smaller; meanwhile, the current difference is converted into a brightness parameter A ' of the headlamp, the current difference is positive, the brightness parameter A ' of the headlamp is zero, and when the current difference is negative, the current difference value is smaller, and the brightness parameter A ' of the headlamp is larger; then, difference calculation is carried out on the brightness parameter A and the brightness parameter A' to obtain delta A, absolute value | delta A | is obtained through absolute calculation of the delta A, the absolute value | delta A | is compared with a reference parameter range set in the single chip microcomputer, and whether the | delta A | is in the reference parameter range or not is judged; taking the average value of the brightness parameter A of the headlamp and the brightness parameter A' of the headlamp as the brightness parameter of the headlamp when the absolute value delta A is within the reference parameter range; if the absolute value delta A is not in the reference parameter range, the singlechip controls the alarm module to start, and the brightness parameter of the headlamp is set to be zero; and finally, taking the running speed parameter of the windscreen wiper and the brightness parameter of the headlamp as control signals.

In the automobile data recorder for intelligently controlling the windscreen wiper and the headlamp, the power supply module comprises a mounting plate, and an internal power supply is arranged on the mounting plate; one side of the internal power supply is connected with a current sensor B, and the current sensor B is connected with the power supply interface; the single chip microcomputer is electrically connected with a vibration sensor, and the vibration sensor is used for detecting abnormal vibration of the vehicle; the vibration sensor converts the detected abnormal vibration of the vehicle into an electric signal and sends the electric signal to the singlechip, and the singlechip controls the current sensor B to detect the current value at the power interface; when the current value is positive, the singlechip directly controls the DSP and the current sensor A to start; when the current value is zero, the single chip microcomputer controls the internal power supply to supply power, and then controls the digital camera DSP and the current sensor A to start.

In the automobile data recorder for intelligently controlling the wiper and the headlamp, the memory B is connected with the digital cameras, and the memory B is at least provided with two memories and is used for storing video data shot by the digital cameras.

Compared with the prior art, the invention has the advantages that the DSP digital signal processor and the singlechip are arranged, the digital camera, the memory A and the memory B are all connected with the DSP digital signal processor, the DSP digital signal processor compares video data outside a windshield shot by the digital camera with a reference picture in the memory A, and the video data is used as a judgment signal to be sent to the singlechip according to the fuzzy degree and the brightness difference of the video data compared with the reference picture; by arranging the solar panel and the current sensor A, the singlechip compares the detected current value generated by the solar panel with the reference current parameter through the current sensor A, and judges the current difference of the current value and the reference current parameter; and finally, the singlechip converts and analyzes the judgment signal and the current difference to obtain a control signal, and sends the control signal to the vehicle BCM through a CAN network, and the vehicle BCM controls the running speed of the windscreen wiper and the brightness of a headlamp, so that the vehicle CAN realize the automatic windscreen wiper and the automatic light control function only by installing a driving recorder under the condition that a rainfall sensor and an ambient light sensor are not required to be installed. In addition, the automobile data recorder can be arranged at each position in the automobile by arranging the rotating head and the sucking disc, and the shooting angle of the digital camera can be manually adjusted by the rotating head, so that the use is convenient; by arranging the mounting block and the groove, the control main board can be fixed in the rear frame and can also be detached, so that the vehicle can be conveniently detached and installed, and the automobile data recorder can be started for emergency video recording once abnormal vibration occurs when the vehicle is parked; through setting up draw-in groove and fixture block, made things convenient for the separation of front bezel and after-frame, further made things convenient for the dismouting. Therefore, the invention not only can reduce the vehicle configuration cost, but also has the advantages of convenient assembly and use, convenient disassembly and assembly and wide application range.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a side view of the front plate;

FIG. 5 is a schematic diagram of a power module;

FIG. 6 is a control connection schematic of the present invention;

fig. 7 is a partially enlarged view of a portion a in fig. 1.

The labels in the figures are: 1-rear frame, 2-USB interface, 3-power interface, 4-digital camera, 5-solar panel, 8-control mainboard, 9-DSP digital signal processor, 10-memory A, 11-single chip microcomputer, 12-power module, 13-current sensor A, 14-alarm module, 15-memory B, 16-memory C, 17-front panel, 18-card block, 19-card slot, 20-screen mounting slot, 21-display screen, 22-first mounting hole, 23-second mounting hole, 24-rotating head, 25-sucker, 26-mounting block, 27-groove, 28-plug block, 29-CAN network, 30-mounting plate, 31-internal power supply, 32-current sensor B, 33-vibration sensor.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.