TWI798082B - Driving behavior warning system and method - Google Patents

Abstract

Driving behavior warning system and method are provided, the driving behavior warning system including: a first sensing unit, configured to be disposed behind a first vehicle and sensing a second vehicle located behind the first vehicle to obtain a first sensing signal; an on-board diagnostic system, generating a driving signal according to an operating information of the first vehicle; a processing unit, being respectively communicative with the first sensing unit and the on-board diagnostic system and generating a controlling signal; a warning unit, being communicative with the processing unit, externally displying a warning information according to at least one of the driving signal and the first sensing signal; a first communication unit, connected with the processing unit and transmitting the controlling signal; and a second communication unit, configured to be disposed on the second vehicle, being communicative with the first communication unit to receive the controlling signal to control the second vehicle.

Description

Driving behavior warning system and warning method thereof

The invention relates to a driving behavior warning system and a warning method thereof.

Traffic accidents often occur because the vehicles behind did not maintain a safe distance, excessive speed or fatigue driving, etc., which led to collision accidents. Therefore, general vehicle all is equipped with stop light, and this stop light lights up immediately when stepping on the brakes, to prompt the rear driver to brake early. Some vehicles are equipped with a third brake light, which is set at a position higher than the brake light on the rear center line of the vehicle; when the driver steps on the brakes, the third brake light and the brake light will light up at the same time, increasing the degree of eye-catching Effectively increase the reaction time of driving behind. However, the known brake light and the third brake light only light up when the driver steps on the brakes, and cannot take into account factors such as relative speed with adjacent vehicles, weather conditions or safe distance between vehicles for active reminders, and the effect is limited, so there are still The driver's unresponsive situation cannot effectively prevent the occurrence of accidents.

Therefore, it is necessary to provide a novel and progressive driving behavior warning system and warning method thereof to solve the above-mentioned problems.

The main purpose of the present invention is to provide a driving behavior warning system and a warning method thereof, which can effectively avoid traffic accidents.

To achieve the above object, the present invention provides a driving behavior warning system, comprising: at least one first sensing unit, provided behind a first vehicle, capable of sensing a second vehicle located behind the first vehicle to obtain at least one a first sensing signal, the at least one first sensing signal includes a vehicle distance between the first vehicle and the second vehicle and a relative vehicle speed; an on-vehicle diagnostic system is provided in the first vehicle, At least one driving signal can be generated according to the running state information of the first vehicle; a processing unit can be connected with the at least one first sensing unit and the on-vehicle diagnostic system respectively, and can calculate a safety signal based on the vehicle distance and the relative speed distance, and can generate a control signal according to the safety distance and the vehicle distance; a warning unit, which is provided on the first vehicle and communicates with the processing unit, can be based on the at least one driving signal and the at least one first sensing At least one of the signals displays a warning message to the outside; a first communication unit is connected to the processing unit and can send the control signal; and a second communication unit is provided in the second vehicle and can communicate with the first The unit communicates and receives the control signal to control the second vehicle to change the driving state.

In order to achieve the above object, the present invention further provides a warning method of the above-mentioned driving behavior warning system, comprising the following steps: obtaining the at least one first sensing signal through the at least one first sensing unit; The system generates the at least one driving signal according to the running state information of the first vehicle; through the warning unit, according to at least one of the at least one driving signal and the at least one first sensing signal, the warning message is displayed externally; through the processing unit Calculate the safety distance based on the vehicle distance and the relative vehicle speed; control the first communication unit to send the control signal through the processing unit according to the safety distance and the vehicle distance; receive the control signal through the second communication unit to control the second communication unit The second vehicle changes the driving state.

1: Driving Behavior Warning System

2: The first vehicle

3: Second vehicle

10: The first sensing unit

20: On-board diagnostic system

30: Processing unit

40: warning unit

41: LED display

50: The first communication unit

60: The second communication unit

70: Information access device

80:Prompt unit

81: Electrical stimulation device

90: Second sensing unit

1 and 2 are schematic diagrams of a preferred embodiment of the present invention.

Fig. 3 is a block diagram of a preferred embodiment of the present invention.

The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention.

Please refer to FIGS. 1 to 3, which show a preferred embodiment of the present invention. The driving behavior warning system 1 of the present invention includes at least one first sensing unit 10, an on-board diagnostic system 20, a processing unit 30, a warning The unit 40 , a first communication unit 50 and a second communication unit 60 .

The at least one first sensing unit 10 is provided behind a first vehicle 2 and can sense a second vehicle 3 located behind the first vehicle 2 to obtain at least one first sensing signal. The at least one first The sensing signal includes a vehicle distance and a relative vehicle speed between the first vehicle 2 and the second vehicle 3; The status information generates at least one driving signal; the processing unit 30 communicates with the at least one first sensing unit 10 and the on-vehicle diagnostic system 20 respectively, and the processing unit 30 can calculate a safety distance according to the vehicle distance and the relative vehicle speed , and can generate a control signal according to the safety distance and the vehicle distance; the warning unit 40 is provided in the first vehicle 2 and communicates with the processing unit 30, and the warning unit 40 can be based on the at least one driving signal and the at least At least one of a first sensing signal displays a warning message; the first communication unit 50 is connected to the processing unit 30 and can send the control signal; the second communication unit 60 is provided on the second vehicle 3 , The second communication unit 60 can communicate with the first communication unit 50 and receive the control signal to control the second vehicle 3 to change the driving state. Wherein, the control signal can, for example, control the second vehicle 3 to slow down or change the driving direction, so as to avoid rear vehicle collision and reduce accidents.

The at least one first sensing unit 10 includes at least one of a camera, a radar sensor, a lidar sensor, an infrared sensor, and an ultrasonic sensor, and can be arranged on the first vehicle 2 to obtain External information, such as pedestrians or obstacles within the sensing range, relative distance or orientation to the first vehicle 2 , terrain or weather conditions, etc., are useful for calculating the safe distance and assisting driving. The first communication unit 50 and the second communication unit 60 are preferably connected by a 5G network, with fast message transmission rate and short delay time.

The warning unit 40 includes an LED display 41 provided at the rear of the first vehicle 2. The warning method of the warning message includes at least one of text, image, light color change and light flashing, as shown in FIG. 2 , Increased conspicuity to alert rear drivers. In other embodiments, the warning unit may further include a speaker to increase the warning effect. When the difference between the vehicle distance and the safety distance is less than a preset value, the processing unit 30 controls the warning unit 40 to display the warning message, which can remind the driver of the second vehicle 3 to slow down, change lanes or change driving direction, etc. to avoid accidents, and if the second vehicle 3 continues to approach the first vehicle 2, the processing unit 30 can control the first communication unit 50 to send the control signal to the second communication unit 60 to change the first vehicle 2 2. The driving state of the vehicle 3, effectively maintaining a safe distance between vehicles or misaligning left and right.

Preferably, the driving behavior warning system 1 further includes an information access device 70 provided on the first vehicle 2, and the information access device 70 is connected to each of the first sensing unit 10 and the processing unit 30 and store the at least one first sensing signal. The processing unit 30 can integrate the at least one first sensing signal and the at least one driving signal to form driving history information, and store it in at least one of the information access device 70 and the on-vehicle diagnostic system 20, which can be complete and The running status information and external environment information of the first vehicle 2 are stored synchronously. In detail, the information access device 70 includes a first sequence, and the plurality of first sensing signals are stored in the information access device 70 according to the first sequence; the on-board diagnostic system 20 includes a first Two time series, the plurality of driving signals are stored in the on-board diagnostic system 20 according to the second time series, and the processing unit 30 can compare the first and second time series and integrate the plurality of first sensing signals and the plurality of driving signals into one The driving history information with the same time sequence. In this way, reading the driving history information can restore the time and space conditions at the time of the accident, which facilitates the clarification of the responsibility for the accident, and when applied to automatic driving, it is also helpful for the judgment of driving behavior.

The driving behavior warning system 1 preferably further includes a prompt unit 80 provided inside the first vehicle 2, the prompt unit 80 communicates with the processing unit 30, and the processing unit 30 can be based on the at least one driving signal, the at least At least one of a first sensing signal and the driving history information controls the prompting unit 80 to generate a prompting message internally, for example, the distance between the vehicle and the second vehicle 3 is too small, and the prompting message can remind the driver to speed up Or change lanes to avoid being chased. The prompt unit 80 includes at least one of a head-up display, a vehicle-mounted computer device, an audio device, and an electrical stimulation device; the prompt message includes at least one of lights, audio, text, images, and electrical signals. In this way, the driving behavior warning system 1 can actively warn the vehicles behind and at the same time remind the driver, effectively reducing the probability of accidents.

In this embodiment, the driving behavior warning system 1 preferably further includes at least one second sensing unit 90 provided in front of the first vehicle 2 and communicating with the processing unit 30, the at least one second sensing unit 90 is capable of sensing at least one obstacle located in front of the first vehicle 2 to obtain at least one second sensing signal, the at least one second sensing signal including the distance between the first vehicle 2 and the at least one obstacle a distance and a relative speed. The prompt unit 80 includes the electrical stimulation device 81, and the processing unit 30 can control the electrical stimulation device 81 to generate at least one electrical signal according to the at least one second sensing signal. For example, the electrical stimulation device 81 can be installed on the steering wheel or the driver's seat of the first vehicle 2, and when the distance between the first vehicle 2 and the obstacle is too close, the electrical stimulation device 81 will generate a The electrical signal stimulates the driver of the first vehicle 2 to feel pain, which can effectively avoid accidents caused by fatigue driving.

The present invention also provides a warning method of the above-mentioned driving behavior warning system 1, which includes the following steps: obtaining the at least one first sensing signal through the at least one first sensing unit 10; The running status information of the first vehicle 2 generates the at least one driving signal; the warning message is displayed externally through the warning unit 40 according to at least one of the at least one driving signal and the at least one first sensing signal; through the processing unit 30 calculate the safety distance based on the vehicle distance and the relative vehicle speed; control the first communication unit 50 to send the control signal through the processing unit 30 according to the safety distance and the vehicle distance; receive the control signal through the second communication unit 60 To control the second vehicle 3 to change the driving state. Thereby, the driving behavior warning system 1 can actively warn the vehicles behind, and when the vehicle distance is too small, the first vehicle 2 can send the control signal to control the second vehicle 3, effectively avoiding accidents.

2: The first vehicle

3: Second vehicle

41: LED display

Claims (10)

A driving behavior warning system, comprising: at least one first sensing unit, provided behind a first vehicle, capable of sensing a second vehicle behind the first vehicle to obtain at least one first sensing signal, the At least one first sensing signal includes a vehicle distance between the first vehicle and the second vehicle and a relative vehicle speed; an on-vehicle diagnostic system is provided for the first vehicle and can be used according to the operation of the first vehicle The state information generates at least one driving signal; a processing unit communicates with the at least one first sensing unit and the on-vehicle diagnostic system respectively, and can calculate a safety distance based on the vehicle distance and the relative vehicle speed, and can calculate a safety distance based on the safety distance and the vehicle distance to generate a control signal; a warning unit, which is provided on the first vehicle and communicates with the processing unit, can display a warning message; a first communication unit, connected to the processing unit and capable of sending the control signal; and a second communication unit, configured in the second vehicle, capable of communicating with the first communication unit and receiving the control signal for The second vehicle is controlled to change the driving state. The driving behavior warning system as claimed in claim 1, wherein the at least one first sensing unit includes at least one of a camera, a radar sensor, a lidar sensor, an infrared sensor, and an ultrasonic sensor. The driving behavior warning system according to claim 1, wherein the first communication unit and the second communication unit are connected through a 5G network. The driving behavior warning system as described in claim 1, wherein the warning unit includes an LED display provided at the rear of the first vehicle, and the warning methods of the warning message include text, image, light color change and light flashing at least one of them. The driving behavior warning system according to claim 1, wherein when the difference between the vehicle distance and the safety distance is less than a preset value, the processing unit controls the warning unit to display the warning message. The driving behavior warning system as described in Claim 1 further includes a prompt unit provided inside the first vehicle, wherein the prompt unit communicates with the processing unit, and the processing unit can rely on the at least one driving signal and the at least At least one of the first sensing signals controls the prompt unit to generate a prompt message. The driving behavior warning system described in any one of claims 1 to 6 further includes an information access device provided on the first vehicle, wherein the information access device communicates with each of the first sensing unit and the The at least one first sensing signal is stored between the processing units. The driving behavior warning system as described in claim 7, wherein the processing unit can integrate the at least one first sensing signal and the at least one driving signal to form driving history information, and store it in the information access device and the vehicle at least one of the diagnostic systems. The driving behavior warning system according to claim 6, wherein the at least one first sensing unit includes at least one of a camera, a radar sensor, a lidar sensor, an infrared sensor, and an ultrasonic sensor; The first communication unit and the second communication unit are connected through a 5G network; the warning unit includes an LED display provided at the rear of the first vehicle, and the warning method of the warning message includes text, image, and light color At least one of change and light flashing; when the difference between the vehicle distance and the safety distance is less than a preset value, the processing unit controls the warning unit to display a warning message; the driving behavior warning system also includes a An information access device installed on the first vehicle, wherein the information access device communicates with The at least one first sensing signal is stored between each of the first sensing units and the processing unit; the processing unit can integrate the at least one first sensing signal and the at least one driving signal to form driving history information, and Stored in at least one of the information access device and the on-vehicle diagnostic system; the processing unit can control the prompt unit according to at least one of the at least one driving signal, the at least one first sensing signal and the driving history information Generate the prompt message; the prompt unit includes at least one of a head-up display, a vehicle-mounted computer device, an audio device, and an electrical stimulation device; the prompt message includes at least one of light signals, audio, text, images, and electrical signals; the information The access device includes a first sequence, the plurality of the first sensing signals are stored in the information access device according to the first sequence; the on-board diagnostic system includes a second sequence, the plurality of the driving signals are stored in accordance with the second sequence The time series is stored in the on-board diagnostic system, the processing unit can compare the first and second time series and integrate the plurality of first sensing signals and the plurality of driving signals into the driving history information with consistent time series; the driving behavior warning system It also includes at least one second sensing unit provided in front of the first vehicle and communicating with the processing unit, the at least one second sensing unit can sense at least one obstacle located in front of the first vehicle to obtain At least one second sensing signal, the at least one second sensing signal includes a distance and a relative speed between the first vehicle and the at least one obstacle; the prompt unit includes the electrical stimulation device, and the processing unit can The electric stimulation device is controlled to generate at least one electric signal according to the at least one second sensing signal. A warning method for a driving behavior warning system according to claim 1, comprising the following steps: obtaining the at least one first sensing signal through the at least one first sensing unit; The running status information generates the at least one driving signal; the warning message is displayed externally through the warning unit based on at least one of the at least one driving signal and the at least one first sensing signal; The processing unit calculates the safety distance according to the vehicle distance and the relative vehicle speed; the processing unit controls the first communication unit to send the control signal according to the safety distance and the vehicle distance; the second communication unit receives the control signal to control the second vehicle to change the driving state.

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