CN114286033A - Method for automatically recording and photographing after vehicle collision - Google Patents

Abstract

A method for automatically recording and shooting after a vehicle is collided relates to the technical field of new energy automobile safety and solves the problems that vehicle accidents cannot be timely processed and the severity of accident sites is caused in the prior art. The method of the invention increases the call judgment condition after collision, ensures the safety of vehicles, and can automatically carry out ECALL call after the shooting is finished if a car accident occurs.

Description

Method for automatically recording and photographing after vehicle collision

Technical Field

The invention relates to the technical field of new energy automobile safety, in particular to a method for automatically recording and shooting a vehicle after collision through interaction of a vehicle-mounted terminal TBOX, an airbag ACU and a vehicle AVN camera of a new energy automobile.

Background

At present, vehicles are more and more, so that vehicle traffic accidents are frequent, and when a vehicle has a major car accident, a rescue department cannot know the severity of the car accident site in time, so that the phenomena of time waste and life rescue optimal time missing are caused. In order to deal with the problem, the invention realizes the automatic video recording and remote photographing method for the vehicle when the safety airbag is knocked open due to the car accident.

Disclosure of Invention

The invention provides a method for automatically recording and photographing after a vehicle is collided, and aims to solve the problems that the prior art cannot timely process the vehicle accidents, causes the severity of scene accidents and the like.

A method for automatically recording and shooting after a vehicle is collided is realized by the following steps:

step one, when a vehicle receives an ACU collision signal in a non-OFF state, the vehicle immediately reports to a TSP, and an Ecall identification bit is attached to the TSP to request an Ecall number from a TSP background, and 1min identifies that a collision signal is effective once;

step two, the T-BOX sends out an instruction to wake up the CAN network, so that the AVN of the vehicle is started, and a collision emergency photographing and video recording instruction signal with an event ID is sent periodically for 1000 ms;

step three, after receiving a collision emergency photographing and video recording instruction signal with an event ID, the AVN starts a CPU to start, a camera is started to take photos and record videos, if the AVN judges that the camera is not opened successfully, the state of the photographing result of the AVN is fed back to a T-BOX, and the T-BOX feeds back information of failure of remote camera opening to a cloud end;

step four, the vehicle AVN stores the shot pictures and video recording files in a local SOS collision shooting type folder on the same day, and uploads the pictures and the video recording files to a cloud end through a network, and the cloud end receives and displays the pictures and the video image files;

the cloud judges and feeds back whether the on-board AVN successfully receives the uploaded photos or not, and feeds back a signal that the on-board AVN does not successfully receive the photos if the photos are not received, and the on-board AVN always executes the uploading action until the uploading is successful;

step six, after the vehicle AVN shooting and video recording is finished, a signal of successful shooting and receiving is returned to the T-BOX, the T-BOX stops periodically sending collision emergency shooting and video recording command signals with event IDs, and the vehicle AVN switches the highest priority to an ECALL emergency call interface to carry out call;

step seven, the cloud judges whether the picture is successfully received within 1 hour, and if not, information of failure in receiving the AVN picture of the vehicle is displayed and recorded; if yes, the TSP stores the emergency photo in a collision photographing folder, and the rescue center platform inquires the image stored in the cloud end according to the requirement through a protocol.

The invention has the beneficial effects that: the method is based on vehicle collision signals of a CAN communication protocol of a vehicle, the vehicle collision signals are acquired in real time through a hardware vehicle-mounted terminal TBOX, the position, the speed and the gear information of the vehicle are uploaded in real time, when the vehicle collides, a vehicle-mounted module TBOX receives a collision mark signal, the TBOX automatically sends a photographing instruction to a vehicle AVN, the AVN executes a camera to photograph one piece, and the photographed image is recorded in 10S and then uploaded to a cloud end to automatically pop up videos and photograph displays. Has the following advantages:

1. according to the method, the vehicle data are acquired in real time through the vehicle-mounted terminal TBOX, the vehicle state is monitored in real time through the cloud platform, and a user can know the vehicle condition in time.

2. The method increases the call judgment condition after collision, ensures the safety of the vehicle, and can automatically carry out ECALL call after the shooting is finished if a car accident occurs.

3. According to the method, the cloud end makes a humanized prompt according to the humanized operation habit, so that the wrong operation is avoided.

Drawings

Fig. 1 is a flowchart of a method for automatically recording and photographing after a vehicle collision according to the present invention.

Detailed Description

Referring to fig. 1, the embodiment is described, and a method for automatically recording and photographing after a vehicle collision occurs is implemented by the following steps:

step A, T, when the BOX receives a collision signal of the ACU in a non-OFF state, the collision signal is immediately reported to the TSP, and an Ecall identification bit is attached to the TSP to request an Ecall number from a TSP background (1min identifies that the collision signal is effective once);

step B, T-the BOX sends out an AVN signal to enable the AVN of the M171 central control host to start the MCU, and periodically sends a collision emergency 'photographing + recording 10S' instruction with an event ID for 1 min; namely: tbox _ crashhostorequest 0x1 for 1 min; c, executing the step C;

step C, AVN, power management identifies whether the start is successful, if yes, the AVN forces the camera to open after receiving the event type photographing instruction signal, and executes step D; if not, executing the step E;

d, judging whether the AVN feedback camera is successfully opened or not, if so, shooting 1 picture and recording 10S pictures after the AVN opens the camera, caching the pictures in an AVN local folder (the folder does not allow a user to check the pictures, and the file names correspond to the vehicle VIN and the date time of the collision ECALL), and naming the pictures according to rules (the file names correspond to the date time, the shooting/video sequence (000-999) and four digits after the vehicle VIN, such as 1905220011331); executing the step F; if not, executing the step E;

step E, AVN feeds back the failure information of starting up/opening the camera to the T-BOX, namely: feeding back AVN _ CameraOpState to the T-BOX and uploading the result to the TSP platform from the T-BOX, wherein the rescue platform can inquire the result;

step F, establishing connection according to a protocol, uploading the connection to the TSP platform, and storing the connection to a folder corresponding to the TSP platform;

step G, TSP, judging whether the AVN is successfully connected or not, if so, returning to the T-BOX to successfully receive the photographing signal after the AVN finishes photographing and recording, stopping periodically sending a photographing + recording 10S command by the T-BOX, and switching the highest priority to an Ecall emergency call interface by the AVN;

step H, TSP, judging whether the picture is successfully received within 1 hour, if not, displaying and recording the information of the failure of receiving the AVN picture of the vehicle, and executing step I; if yes, executing step I;

step I, TSP, the background stores the emergency photo in a collision photo folder (the filename corresponds to the VIN and the date and time of the collision Ecall vehicle), and the rescue center platform queries the image stored in the cloud as needed through a protocol.

In the embodiment, after the step A, the T-BOX issues an Ecall number according to the TSP, starts a main MIC of a main driving side, dials a rescue center number Ecall by using a call package through an internal storage networking SIM card, judges whether a vehicle-mounted telephone needs to be called back after the rescue center answers the number, and if so, a rescue platform initiates or a customer service worker calls back by using a mobile phone number to request the call to execute the step J; if not, executing the step L;

step J, AVN, judging whether the driver answers the call, if not, executing step K; if yes, the T-BOX is connected with an incoming call of the rescue platform Ecall; executing the step L;

step K, AVN, judging whether the call waiting is more than 5S, if yes, the T-BOX connects the rescue platform Ecall incoming call; executing the step L; if not, continuing to wait;

step L, AVN judges whether the call is answered normally, if yes, the call is interrupted by one party, and if not, the call is ended.

In this embodiment, after the step a, the rescue center platform calls the vehicle real-time positioning (longitude and latitude, position character information) of the TSP, the total vehicle mileage, the T-BOX built-in SIM card number and the APP registration/authorized login record mobile phone number, and performs pop-up display.

In this embodiment, the related signals and messages have the following meanings:

the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (2)

1. A method for automatically recording and shooting after a vehicle collision is characterized by comprising the following steps: the method is realized by the following steps:

step one, when a vehicle receives an ACU collision signal in a non-OFF state, the vehicle immediately reports to a TSP, and an Ecall identification bit is attached to the TSP to request an Ecall number from a TSP background, and 1min identifies that a collision signal is effective once;

step two, the T-BOX sends out an instruction to wake up the CAN network, so that the AVN of the vehicle is started, and a collision emergency photographing and video recording instruction signal with an event ID is sent periodically for 1000 ms;

step three, after receiving a collision emergency photographing and video recording instruction signal with an event ID, the AVN starts a CPU to start, a camera is started to take photos and record videos, if the AVN judges that the camera is not opened successfully, the state of the photographing result of the AVN is fed back to a T-BOX, and the T-BOX feeds back information of failure of remote camera opening to a cloud end;

step four, the vehicle AVN stores the shot pictures and video recording files in a local SOS collision shooting type folder on the same day, and uploads the pictures and the video recording files to a cloud end through a network, and the cloud end receives and displays the pictures and the video image files;

the cloud judges and feeds back whether the on-board AVN successfully receives the uploaded photos or not, and feeds back a signal that the on-board AVN does not successfully receive the photos if the photos are not received, and the on-board AVN always executes the uploading action until the uploading is successful;

step six, after the vehicle AVN shooting and video recording is finished, a signal of successful shooting and receiving is returned to the T-BOX, the T-BOX stops periodically sending collision emergency shooting and video recording command signals with event IDs, and the vehicle AVN switches the highest priority to an ECALL emergency call interface to carry out call;

step seven, the cloud judges whether the picture is successfully received within 1 hour, and if not, information of failure in receiving the AVN picture of the vehicle is displayed and recorded; if yes, the TSP stores the emergency photo in a collision photographing folder, and the rescue center platform inquires the image stored in the cloud end according to the requirement through a protocol.

2. The method of claim 1, wherein the method comprises the following steps: the collision emergency photographing and video recording instruction signal is a video instruction signal for photographing and 10s video recording.

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