阅读说明：本技术 一种基于后视镜检测车门开启安全预警系统 (Door opening safety early warning system based on rearview mirror detection ) 是由 黄峰明 于 2020-04-23 设计创作，主要内容包括：本发明公开了一种基于后视镜检测车门开启安全预警系统,包括长测距雷达、锁门模块、短信报警电路、用户终端和电控单元,此基于后视镜检测车门开启安全预警系统长测距雷达先检测车身两侧是否有物体靠近(行人或者车辆)同时测出车门与行进物体的距离(S)与速度(V),之后将测得数据送入电控单元,电控单元在接收到数据后利用行进物体的速度(V)计算出打开车门的安全距离(S0),然后与测得的距离(S)进行比较,如果实测距离大于安全距离(S>S0)车门能够正常的打开,如果实测距离小于计算出的安全距离(S<S0)系统自动将车门锁上并且启动声光报警系统,汽车内声报警模块发出报警声。(The invention discloses a door opening safety early warning system based on rearview mirror detection, which comprises a long distance measuring radar, a door locking module, a short message alarm circuit, a user terminal and an electric control unit, wherein the long distance measuring radar firstly detects whether objects (pedestrians or vehicles) are close to two sides of a vehicle body or not and simultaneously measures the distance (S) and the speed (V) between a vehicle door and a traveling object, then the measured data are sent to the electric control unit, the electric control unit calculates the safety distance (S0) for opening the vehicle door by using the speed (V) of the traveling object after receiving the data, then the safety distance is compared with the measured distance (S), if the measured distance is greater than the safety distance (S > S0), the vehicle door can be normally opened, and if the measured distance is smaller than the calculated safety distance (S < S0), a system automatically locks the vehicle door and starts an acousto-optic alarm system, the automobile interior sound alarm module gives out alarm sound.)

1. The utility model provides a detect door and open safe early warning system based on rear-view mirror, includes long range finding radar (3), lock a door module (10), SMS warning circuit (4), user terminal (5) and electrical unit (6), electrical unit (6) respectively with long range finding radar (3), SMS warning circuit (4) and lock a door module (10) electric connection, electrical unit (6) are connected with user terminal (5) through SMS warning circuit (4), its characterized in that still includes: rearview camera body (1), long range finding radar (3), AD conversion (7) and lock a door module (10), rearview camera body (1) electric connection has image processing module (2), and rearview camera body (1) is connected with long range finding radar (3) through image processing module (2), long range finding radar (3) are connected with automatically controlled unit (6) through AD conversion (7), lock a door module (10) electric connection respectively has alarm module (12) and GSM monitoring alarm unit (13).

2. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the image processing module (2) comprises an image acquisition (16), an image pre-processing (17) and an image post-processing (18).

3. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the GSM monitoring alarm unit (13) comprises a single chip circuit (19), a data storage circuit (20), an alarm protection circuit (21), a CAN communication circuit (22) and a GSM communication circuit (23), and the single chip circuit (19), the data storage circuit (20), the alarm protection circuit (21), the CAN communication circuit (22) and the GSM communication circuit (23) are all electrically connected with the door locking module (10).

4. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the door locking module (10) comprises an original door locking signal (8) and a door mistaken unlocking prevention signal (9), and the original door locking signal (8) and the door mistaken unlocking prevention signal (9) are both electrically connected with the door locking module (10).

5. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the short message alarm circuit (4) comprises a power-on control circuit (28), a level conversion circuit (29) and a GSM module circuit (11).

6. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the alarm module (12) comprises a buzzer (15) and an alarm lamp (14).

7. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the CAN communication circuit (22) comprises a CAN controller (24), a CAN driver (25), a high-speed optical coupler (26) and an isolation power supply (27).

8. The vehicle door opening safety early warning system based on rearview mirror detection is characterized in that: the rear-view camera body (1) has a horizontal view field with a view angle of 110 degrees.

Technical Field

The invention relates to the technical field of a vehicle door opening safety early warning system, in particular to a vehicle door opening safety early warning system based on rearview mirror detection.

Background

With the rapid increase of automobile reserves in China, the total amount of traffic accidents is also rising in successive years, and the problem of how to reduce the traffic accidents and the loss caused by the traffic accidents becomes more and more concerned by people.

With the increase of the number of automobiles, the close-distance contact time between a person or a non-motor vehicle and the automobile is more and more, when the automobile stops at the roadside, the person in the automobile suddenly opens the automobile door to cause great primary injury or even fatal secondary injury to the passing person or the non-motor vehicle driver, and therefore a safety early warning system for detecting the opening of the automobile door based on a rearview mirror is provided.

Disclosure of Invention

The invention aims to provide a fixed bed reactor which ensures that the temperature of each layer of a bed layer is uniform and avoids side reaction of a catalyst, so as to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a detect door and open safe early warning system based on rear-view mirror, includes long range radar, lock a module, SMS warning circuit, user terminal and electrical control unit, electrical control unit respectively with long range radar, SMS warning circuit and lock a module electric connection, electrical control unit is connected with user terminal through SMS warning circuit, still includes: rearview camera body, long range radar, AD conversion and lock a door module, rearview camera body electric connection has image processing module, and rearview camera body passes through image processing module and is connected with long range radar, long range radar passes through the AD conversion and is connected with the electrical control unit, lock a door module electric connection respectively has alarm module and GSM monitoring alarm unit.

Preferably, the image processing module comprises image acquisition, image preprocessing and image post-processing.

Preferably, the GSM monitoring alarm unit includes a single chip circuit, a data storage circuit, an alarm protection circuit, a CAN communication circuit and a GSM communication circuit, and the single chip circuit, the data storage circuit, the alarm protection circuit, the CAN communication circuit and the GSM communication circuit are all electrically connected to the door locking module.

Preferably, connect the folded plate inboard and C template bottom inner wall sliding connection for connect the more stable removal of folded plate the lock door module includes original lock door signal and mistake proofing lock door signal, and original lock door signal and mistake proofing lock door signal all with lock door module electric connection.

Preferably, the short message alarm circuit comprises a power-on control circuit, a level conversion circuit and a GSM module circuit.

Preferably, the alarm module comprises a buzzer and an alarm lamp.

Preferably, the CAN communication circuit comprises a CAN controller, a CAN driver, a high-speed optical coupler and an isolation power supply.

Preferably, the rear-view camera body has a horizontal view of 110 degrees.

Compared with the prior art, the invention has the beneficial effects that: the invention firstly detects whether objects are close to (pedestrians or vehicles) on two sides of a vehicle body or not through a long distance measuring radar, simultaneously measures the distance (S) and the speed (V) between a vehicle door and a traveling object, then sends the measured data to the electric control unit, the electric control unit calculates the safe distance (S) for opening the vehicle door by using the speed (V) of the traveling object after receiving the data, then compares the safe distance (S) with the measured distance (S), if the measured distance is greater than the safe distance (S) the vehicle door can be normally opened, if the measured distance is smaller than the calculated safe distance (S < S), the system automatically locks the vehicle door and starts the sound and light alarm system, and the sound alarm module in the vehicle gives out alarm sound, thereby realizing the function of safe early warning for opening the vehicle door and ensuring the safety.

Drawings

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

FIG. 2 is a block diagram of an image processing module according to the present invention;

FIG. 3 is a schematic structural diagram of a GSM monitoring alarm unit according to the present invention;

FIG. 4 is a schematic diagram of a circuit diagram of an alarm module according to the present invention;

FIG. 5 is a schematic diagram of a CAN communication circuit according to the present invention;

FIG. 6 is a schematic diagram of a short message alarm circuit according to the present invention.

In the figure: 1. a rearview camera head body; 2. an image processing module; 3. a long range radar; 4. a short message alarm circuit; 5. a user terminal; 6. an electronic control unit; 7. AD conversion; 8. original door locking signals; 9. a false unlocking prevention signal; 10. a door locking module; 11. a GSM module circuit; 12. an alarm module; 13. a GSM monitoring alarm unit; 14. an alarm lamp; 15. a buzzer; 16. collecting an image; 17. preprocessing an image; 18. image post-processing; 19. a single chip circuit; 20. a data storage circuit; 21. an alarm protection circuit; 22. a CAN communication circuit; 23. a GSM communication circuit; 24. a CAN controller; 25. a CAN driver; 26. a high-speed optical coupler; 27. isolating the power supply; 28. a startup control circuit; 29. a level conversion circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a rearview mirror-based vehicle door opening safety early warning system in the figure comprises a long distance measuring radar 3, a door locking module 10, a short message alarm circuit 4, a user terminal 5 and an electric control unit 6, wherein the electric control unit 6 is electrically connected with the long distance measuring radar 3, the short message alarm circuit 4 and the door locking module 10 respectively, and the electric control unit 6 is connected with the user terminal 5 through the short message alarm circuit 4;

further comprising: rearview camera body 1, long range radar 3, AD conversion 7 and lock a door module 10, rearview camera body 1 electric connection has image processing module 2, and rearview camera body 1 is connected with long range radar 3 through image processing module 2, long range radar 3 is connected with electrical unit 6 through AD conversion 7, lock a door module 10 electric connection respectively has alarm module 12 and GSM monitoring alarm unit 13.

The image processing module 2 comprises an image acquisition module 16, an image preprocessing module 17 and an image post-processing module 18, so that the image can be processed conveniently and can be clearer.

The GSM monitoring alarm unit 13 comprises a single chip microcomputer circuit 19, a data storage circuit 20, an alarm protection circuit 21, a CAN communication circuit 22 and a GSM communication circuit 23, wherein the single chip microcomputer circuit 19, the data storage circuit 20, the alarm protection circuit 21, the CAN communication circuit 22 and the GSM communication circuit 23 are electrically connected with the door locking module 10, the GSM communication module adopts SIM900A of SIMCom company, the SIM900A module is a dual-frequency GSM/GPRS module, the working frequency ranges are EGSM900MHz and DCS1800MHz, the GSM monitoring alarm unit has the advantages of compact structure, low power consumption, simplicity in development and debugging and the like, the CAN communication circuit 22 adopts a CAN controller 24(SJA1000) and a CAN transceiver 82C250 which are manufactured by PHILIPS company, and in addition, the monitoring unit is also designed with circuits such as man-machine interaction, data storage and the like and is used for completing the functions of parameter setting, display, storage and the like.

The door locking module 10 comprises an original door locking signal 8 and an anti-false door locking signal 9, the original door locking signal 8 and the anti-false door locking signal 9 are electrically connected with the door locking module 10, the original door locking signal 8 and the anti-false door locking signal 9 of the automobile are connected in an OR logic mode, the automobile door can be normally locked after any signal is input into the original door locking signal 8 or the anti-false door locking signal 9, and the door locking module 10 is controlled by the original door locking signal 8 when the automobile door is opened safely.

The short message alarm circuit 4 comprises a power-on control circuit 28, a level conversion circuit 29 and a GSM module circuit 11, which is convenient for ensuring the reliability of communication.

The alarm module 12 comprises a buzzer 15 and an alarm lamp 14, so that sound and light alarm can be realized conveniently.

The CAN communication circuit 22 comprises a CAN controller 24, a CAN driver 25, a high-speed optical coupler 26 and an isolation power supply 27, the CAN communication circuit 24 mainly comprises four parts, namely a CAN controller 22(SJA1000), a CAN driver 25(82C250), a high-speed optical coupler 26(6N137) and the isolation power supply 27, the SJA1000 integrates all functions of a data link layer in a CAN specification, CAN automatically complete analysis of a CAN-bus protocol, and works in an interrupt mode, and an interrupt request is sent to the single chip microcomputer through an interrupt output pin of the SJA1000 to realize information receiving and transmitting between the single chip microcomputer and a bus; TX0 and RX0 of the SJA1000 are connected with 82C250 through a high-speed optical coupler 26(6N137), so that electrical isolation among CAN nodes on a bus is realized, and the anti-interference capability and stability of the CAN bus are enhanced; 82C250 is used as an interface between the CAN controller 24 and a physical bus to realize the conversion from a logic signal to a differential physical signal, and in order to further enhance the anti-interference capability of communication, the circuit also adopts the technology of an isolation power supply 27, the bus impedance matching technology and the like.

The rear-view camera body 1 has a horizontal view of 110 degrees, the camera with the horizontal view of 110 degrees has small deformation, an image does not need to be corrected, and the view range is good.

The working principle is as follows: after the automobile is stopped and stabilized, the automobile is shot through the rearview camera body 1, then the shot image is processed through the image processing module 2, the long range radar 3 can detect an object at a distance of 60-170m within 50ms, the detection angle is 20-90 degrees, the range and the speed of the detected object can be accurately provided, a plurality of detection targets can be distinguished, the radar automatically detects the distance and the speed with an obstacle after the detection is started, then the signal is sent to the electronic control unit 6 after being processed, the long range radar 3 firstly detects whether objects (pedestrians or vehicles) approach to the two sides of the automobile body and simultaneously detects the distance (S) and the speed (V) between the automobile door and a traveling object, then the detected data is sent to the electronic control unit 6, the electronic control unit 6 calculates the safe distance (S0) for opening the automobile door by using the speed (V) of the traveling object after receiving the data, then comparing with the measured distance (S), if the measured distance is larger than the safe distance (S > S0), the door can be normally opened, if the measured distance is smaller than the calculated safe distance (S < S0), the system automatically locks the door and starts the sound and light alarm system, the automobile interior sound alarm module 12 gives out alarm sound, the alarm lamp 14 is lightened, if the door cannot be opened without manual unlocking, the member in the automobile can observe the rear situation after receiving the alarm signal, the door is opened under the condition of ensuring the safety, meanwhile, the alarm signal is automatically eliminated after the automobile door lock is opened, the electric control unit 6 outputs a control signal to control the alarm module 12 and the door locking module 10 after processing, the original door locking signal 8 of the automobile is connected with the door mis-unlocking prevention signal 9 in a logic mode, the door can be normally locked after any one of the original door locking signal 8 or the door mis-unlocking prevention signal 9 is input, the door locking module 10 is controlled by the original door locking signal 8 at the moment of safe door opening.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.