CN108600993A - Workshop information transferring method based on Bluetooth communication - Google Patents

Abstract

The invention discloses a workshop information transmission method based on bluetooth communication, which is characterized in that it is carried out in accordance with the following steps: S1: input a trigger signal through the first terminal device; S2: extract the license plate information of the vehicle in front through the first terminal device; S3: through the first terminal device The first Bluetooth module in a terminal device broadcasts Bluetooth handshake information, which includes the license plate information of the vehicle in front extracted in step S2 and the control command sent by the first terminal device; S4: the second Bluetooth module judges that it has received the Bluetooth Whether the handshake information matches its own license plate information, and if so, the control instruction is transmitted to the second terminal device to perform a corresponding control action. Its effect is: it can meet the needs of the vehicle behind to actively send reminder information to the vehicle ahead when following the vehicle at close distances. When the existing lights and whistles cannot directly prompt the vehicle in front, it can transmit control commands in a directional manner through a short-distance Bluetooth connection. , to provide a more convenient driving environment for the driver.

Description

Workshop Information Transmission Method Based on Bluetooth Communication

technical field

The invention relates to the Internet of Vehicles technology, in particular to a method for transmitting workshop information based on Bluetooth communication.

Background technique

With the development of the economy, the number of people using cars is gradually increasing, and the frequency of traffic accidents is also increasing. In the prior art, the information exchange between vehicles is mostly realized through lights and whistles, but the driving level of the drivers is uneven, and some drivers still have some bad driving habits, often ignoring the situation of the rear vehicles. Therefore, the conventional It is difficult to meet the driver's information transmission needs in the existing road traffic driving process.

With the development of Internet of Vehicles technology, some people have proposed to use special communication equipment to realize mutual interaction between vehicles, but its hardware configuration is relatively complicated, the networking cost is high, and for the information interaction between drivers, the operation Relatively complex, it is difficult to meet the needs of practical applications.

Contents of the invention

In order to solve the above problems, the present invention provides a method for transmitting inter-vehicle information based on Bluetooth communication. This method mainly meets the needs of vehicles in the rear to send reminder information to vehicles in front, and can transmit control instructions to vehicles in front based on existing conventional operations. It is more convenient for the vehicle in front to understand the driving situation of the vehicle behind, thereby reducing the probability of traffic accidents.

In order to achieve the above object, the concrete technical scheme adopted in the present invention is as follows:

A workshop information transmission method based on bluetooth communication, the key of which is to follow the steps below:

S1: Inputting a trigger signal through the first terminal device;

S2: Extract the license plate information of the vehicle in front through the first terminal device;

S3: Broadcasting Bluetooth handshake information through the first Bluetooth module in the first terminal device, the Bluetooth handshake information including the license plate information of the vehicle in front extracted in step S2 and the control command sent by the first terminal device;

S4: The second Bluetooth module judges whether the received Bluetooth handshake information matches its own license plate information, and if so, transmits the control command to the second terminal device to execute a corresponding control action.

Optionally, the first terminal device is a vehicle-mounted controller of the vehicle behind, and the trigger signal input in step S1 is a signal that the driver pulls the high beam more than twice consecutively.

Optionally, the first terminal device is a vehicle-mounted controller of the vehicle behind, and the trigger signal input in step S1 is a signal that the driver presses the horn button more than twice consecutively.

Optionally, a driving recorder is connected to the first terminal device, and the license plate information of the preceding vehicle is obtained by image processing by extracting the rear image of the preceding vehicle captured by the driving recorder.

Optionally, the control instruction sent by the first terminal device is any one of reminding to accelerate, reminding to slow down, reminding to turn on lights, reminding that the vehicle is abnormal, and reminding about overtaking.

Optionally, after the license plate information of the vehicle in front is correctly acquired, the first terminal device correspondingly inputs different control instructions by adopting different trigger modes, specifically:

Two consecutive flashes of the high beam correspond to a reminder to accelerate the command;

Tapping the brake lightly twice in a row corresponds to a reminder to decelerate;

Switching on and off the light signal twice in a row corresponds to a reminder to turn on the light;

Turning on the hazard warning light corresponds to reminding the vehicle of abnormality;

Turning on the left turn signal corresponds to reminding that overtaking is about to take place.

Optionally, the second terminal device is provided with a voice playback module, and when the second terminal device correctly acquires the control instruction sent by the first terminal device through the second Bluetooth module, the corresponding prompt information is played through the voice playback module .

Notable effect of the present invention is:

This method can meet the needs of the vehicle behind to actively send prompt information to the vehicle ahead when following the vehicle at close range. When the existing lights and whistles cannot directly prompt the vehicle in front, it can transmit control commands in a directional manner through a short-distance Bluetooth connection. The driver provides a more convenient driving environment.

Description of drawings

Figure 1 is a flowchart of the method.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

As shown in Figure 1, this embodiment provides a method for transmitting workshop information based on Bluetooth communication, which is performed according to the following steps:

S1: Input the trigger signal through the first terminal device; usually, the first terminal device is the on-board controller of the vehicle behind, and the input trigger signal is that the driver pulls the high beam signal for more than two consecutive times or presses the horn button for more than two consecutive times Signal. Triggered by the above signal, the system can wake up the Bluetooth device and enter the start-up process of information interaction;

S2: Extract the license plate information of the vehicle in front through the first terminal device. Usually, the first terminal device is connected to the driving recorder. After receiving the trigger signal given in step S1, the picture image taken by the driving recorder is automatically extracted, and then based on Image recognition technology to identify the license plate information of the front vehicle captured in the image; due to the uniqueness of the license plate number, it can be bound to its own Bluetooth device, and the license plate information can be used as the label in the Bluetooth handshake information;

S3: Broadcasting Bluetooth handshake information through the first Bluetooth module in the first terminal device, the Bluetooth handshake information including the license plate information of the vehicle in front extracted in step S2 and the control command sent by the first terminal device;

In this link, the driver can choose to input different control commands according to the actual situation, such as reminding to accelerate, reminding to slow down, reminding to turn on the lights, reminding the vehicle to be abnormal or reminding to overtake, etc.;

Usually, the system is pre-configured with input modes of different control commands. In this embodiment:

The first terminal device correspondingly inputs different control commands by adopting different trigger modes, specifically:

Two consecutive flashes of the high beam correspond to a reminder to accelerate the command;

Tapping the brake lightly twice in a row corresponds to a reminder to decelerate;

Switching on and off the light signal twice in a row corresponds to a reminder to turn on the light;

Turning on the hazard warning light corresponds to reminding the vehicle of abnormality;

Turning on the left turn signal corresponds to a reminder that overtaking is about to take place;

S4: The second Bluetooth module judges whether the received Bluetooth handshake information matches its own license plate information, and if so, transmits the control command to the second terminal device to execute a corresponding control action.

As an implementation, a voice playback module is provided in the second terminal device, and when the second terminal device correctly obtains the control instruction sent by the first terminal device through the second Bluetooth module, the corresponding prompt is played through the voice playback module information.

As another implementation manner, a corresponding controller is set in the second terminal device, and when it receives a corresponding control instruction, the controller automatically controls existing components to perform related operations.

Let’s take the scene of waiting for a traffic light at an intersection as an example. When the signal light turns from red to green, the car in front is still parked at the intersection and does not start. Since the horn is prohibited in the urban area, the car behind flashes its high beam twice consecutively. If the driver in front does not Observe surrounding situation, still can continue to stay, after adopting the method that the present invention proposes, the driving recorder of rear car can obtain the image information of front car, at this moment the driver of rear car flashes high beam light twice again, bluetooth module will The information is used as a control command, and at the same time, the license plate number is added as identity information to the Bluetooth handshake information and broadcast out. After receiving the above handshake information, the nearby Bluetooth device will automatically discard the data packet if it does not match itself. If it matches, it is deemed to belong to the information sent to itself, so as to extract the control command inside. When it is found to be a reminder acceleration command, the voice module in the vehicle in front will play a sound to remind the driver to speed up. In this way, the driver of the vehicle in front will It can be understood that the vehicle behind is urging, so as to quickly leave the intersection and reduce road congestion.

Based on the above design, when the following vehicle is following the vehicle at a close distance, this method can realize the automatic transmission of prompt information. According to different application scenarios, different prompts can be given, which facilitates the information transmission between the front and rear vehicles. , to provide more convenient support for road driving safety. The system is simple to control and easy to operate, and can be effectively applied to various models.

Finally, it should be noted that the above-mentioned automatic extraction of license plate numbers is a mature technology in image processing, and the specific technical details will not be repeated, and the description of this embodiment is only a preferred embodiment of the present invention. Under the enlightenment of the present invention, many similar representations can be made without violating the gist and claims of the present invention, and such transformations all fall within the protection scope of the present invention.

Claims (7)

1. a kind of workshop information transferring method based on Bluetooth communication, it is characterised in that follow the steps below：

S1：Trigger signal is inputted by first terminal equipment；

S2：Front truck license board information is extracted by first terminal equipment；

S3：Bluetooth handshaking information is broadcasted by the first bluetooth module in first terminal equipment, is wrapped in the bluetooth handshaking information Include the front truck license board information that step S2 is extracted and the control instruction that first terminal equipment is sent out；

S4：The judgement of second bluetooth module receives whether bluetooth handshaking information matches with itself license board information, if it does, then will Control instruction is transferred to second terminal equipment and executes corresponding control action.

2. the workshop information transferring method according to claim 1 based on Bluetooth communication, it is characterised in that：

The first terminal equipment is the Vehicle Controller of front vehicle, and the trigger signal inputted in step S1 is that driver is continuous Distance light modulating signal is pulled more than twice.

3. the workshop information transferring method according to claim 1 based on Bluetooth communication, it is characterised in that：

The first terminal equipment is the Vehicle Controller of front vehicle, and the trigger signal inputted in step S1 is that driver is continuous Horn button signal is pressed more than twice.

4. the workshop information transferring method according to claim 1 or 2 or 3 based on Bluetooth communication, it is characterised in that：It is described It is connected with automobile data recorder in first terminal equipment, by extracting the front truck tailstock image of automobile data recorder shooting, utilizes image Processing obtains front truck license board information.

5. the workshop information transferring method according to claim 4 based on Bluetooth communication, it is characterised in that：First terminal is set The control instruction that preparation goes out is to remind accelerate, remind and slow down, remind and open light, remind vehicle abnormality, remind and will overtake other vehicles Any type.

6. the workshop information transferring method according to claim 5 based on Bluetooth communication, it is characterised in that：It is obtained when correct After front truck license board information, the first terminal equipment corresponds to by using different triggering modes and inputs different control instructions, Specially:

High beam is flashed twice in succession to correspond to remind assisted instruction；

Brake is gently stepped on twice in succession to correspond to remind deceleration instruction；

Switch light signal, which corresponds to remind, twice in succession opens light；

Hazard warning light is opened to correspond to remind vehicle abnormality；

It opens left steering lamp and corresponds to remind and will overtake other vehicles.

7. the workshop information transferring method according to claim 5 or 6 based on Bluetooth communication, it is characterised in that：Described It is provided with voice playing module in two terminal devices, when second terminal equipment correctly obtains first terminal by the second bluetooth module When the control instruction that equipment is sent out, corresponding prompt message is played by the voice playing module.