Vehicle blind area warning method

Abstract

The invention belongs to the technical field of vehicle driving safety, and particularly relates to a vehicle blind area warning method which comprises the steps that a sensor arranged on the periphery of a vehicle body monitors whether foreign matter exists in a preset warning area or not, and when the sensor recognizes that the foreign matter exists in the warning area, a first warning element arranged outside the vehicle body works and sends out warning information; pedestrians around the vehicle and the vehicle can be actively prompted to avoid the visual blind area of the driver of the vehicle, so that traffic accidents are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle driving safety, and in particular relates to a vehicle blind spot warning method. Background Art

[0002] The lack of field of vision in the vehicle's rearview mirror leads to visual observation blind spots, which makes it impossible for the driver and passengers to observe whether there are obstacles, vehicles or pedestrians in the blind spots, seriously affecting driving safety. To this end, the driver's visual blind spots are usually eliminated or reduced by adding curved mirrors, cameras and other auxiliary observation equipment. However, this is still from the driver's perspective, making traffic safety completely dependent on the driver's current observation field of vision and driving experience, while vehicles and pedestrians next to the vehicle cannot be reminded in time that they are in the vehicle's visual blind spots. Accidents caused by vehicle driving observation blind spots are still difficult to effectively prevent. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle blind spot warning method, which can effectively reduce the safety hazards caused by the vehicle blind spot.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a vehicle blind spot warning method, in which a sensor arranged on the periphery of the vehicle body monitors whether there is a foreign object in a preset warning area. When the sensor identifies the presence of a foreign object in the warning area, a warning element arranged on the outside of the vehicle body works and issues a warning message.

[0005] Compared with the prior art, the present invention has the following technical effects: it can actively prompt pedestrians and vehicles around the vehicle to avoid the visual blind spot of the driver of the vehicle, so as to avoid the occurrence of traffic accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The following is a brief description of the contents and symbols in the drawings of this specification:

[0007] Figure 1 is a schematic diagram of the present invention from a top-down perspective;

[0008] Figure 2 is a top view schematic diagram of a vehicle in a stopped state;

[0009] Figure 3 It is a top view schematic diagram of the vehicle's driving state;

[0010] Figure 4 It is a top view schematic diagram of the vehicle turning right. DETAILED DESCRIPTION

[0011] The specific implementation of the present invention is further described in detail below through description of embodiments in conjunction with the accompanying drawings.

[0012] A vehicle blind spot warning method, a sensor 10 arranged on the periphery of the vehicle body monitors whether there is a foreign object in a preset warning area A, and when the sensor 10 identifies the presence of a foreign object in the warning area A, a warning element arranged on the outside of the vehicle body starts to work and issues a warning message. The warning is issued only when the sensor 10 detects the presence of a foreign object in the warning area A, which can timely alert pedestrians or vehicles in the warning area A, and avoid continuous warning of the vehicle to reduce the attention of pedestrians or vehicles, or affect the normal driving of surrounding vehicles.

[0013] Furthermore, when the sensor 10 identifies that there is a foreign object in the warning area A, the warning element 2 provided in the vehicle operates and sends a warning message to the driver and passengers. The warning message sent by the warning element 2 is a sound signal or a light signal. That is, when the sensor 10 senses that the warning area A is abnormal, it sends a warning signal to the inside and outside of the vehicle at the same time, so that the driver and pedestrians and vehicles outside the vehicle can all be warned, which is convenient for both parties to take risk avoidance operations, thereby further ensuring driving safety.

[0014] As attached Figure 1 , 2 As shown, the warning area A is located at the side of the vehicle body, and a sensor 10 is arranged at the side of the vehicle body. The number of sensors 10 is determined according to the length of the vehicle body and the detection range of the sensor 10. Figure 2 As shown, the edge of the warning area A away from the vehicle body is in an arc shape with a large distance between the middle and the vehicle body and a small distance between the front and rear sides. The detection range of the sensor 10 located in the middle of the vehicle body is also greater than the detection range of the sensor 10 located at the front and parking spaces.

[0015] To ensure traffic safety, the range of warning area A is slightly adjusted according to the driving state of the vehicle. Specifically, the maximum distance between warning area A and the vehicle body is adjusted according to the driving state of the vehicle. The faster the vehicle travels, the greater the maximum distance between warning area A and the vehicle body. When the vehicle stops, the maximum distance between warning area A and the vehicle body is D1. When the vehicle is driving in a straight line, the maximum distance between warning area A and the vehicle body is D2. When the vehicle turns right / left, the maximum distance between warning area A on the right / left side of the vehicle body and the vehicle body is D3. Figure 2 , 3 As shown in 4, D3>D2>D1.

[0016] In the preferred embodiment, a safety restricted area B is also preset, as shown in the attached Figure 3 As shown, the safety restricted area B is located in the vicinity of the vehicle body in the warning area A. The sensor 10 disposed on the periphery of the vehicle body also monitors whether there is a foreign object in the preset safety restricted area B. The maximum distance between the safety restricted area B and the vehicle body is smaller than the maximum distance between the warning area A and the vehicle body, i.e. D4 <D1。

[0017] When the sensor 10 identifies the presence of foreign objects in the safety restricted area B, the vehicle control system sends a signal to brake the vehicle or reduce the vehicle's speed. The safety restricted area B is close to the vehicle, and pedestrians or vehicles in this area are likely to have a traffic safety accident. Therefore, when the sensor 10 identifies the presence of foreign objects in the safety restricted area B, the vehicle control system actively brakes or reduces the vehicle's speed to ensure vehicle driving safety.

[0018] Specifically, the sensor 10 can be any one of an ultrasonic ranging sensor, a short-range microwave sensor, an image sensor, an infrared sensor, a laser ranging sensor, or a combination of the aforementioned multiple sensors, so as to detect and identify foreign objects in a preset area. Warning element 1 and warning element 2 emit sound information or light signals when working. In the preferred embodiment, warning element 1 can emit a ground projection to show the warning area or edge, or emit a flashing light warning, or emit a pre-recorded warning sound warning, so as to prompt pedestrians and vehicles to keep a safe distance from the vehicle.

Claims

1. A vehicle blind spot warning method, characterized in that: A sensor (10) arranged on the periphery of the vehicle body monitors whether a foreign object exists in a preset warning area (A); when the sensor (10) identifies that a foreign object exists in the warning area (A), a warning element arranged on the outside of the vehicle body operates and issues a warning message.

2. The vehicle blind spot warning method according to claim 1, characterized in that: The warning area (A) is located on the side of the vehicle body.

3. The vehicle blind spot warning method according to claim 2, characterized in that: The edge of the warning area (A) away from the vehicle body side is in an arc shape with a large distance between the middle part and the vehicle body and a small distance between the front side and the rear side and the vehicle body.

4. The vehicle blind spot warning method according to claim 1, characterized in that: The maximum distance between the warning area (A) and the vehicle body is adjusted according to the driving state of the vehicle; when the vehicle stops, the maximum distance between the warning area (A) and the vehicle body is D1, when the vehicle is driving in a straight line, the maximum distance between the warning area (A) and the vehicle body is D2, when the vehicle turns right / left, the maximum distance between the warning area (A) located on the right / left side of the vehicle body and the vehicle body is D3, D3>D2>D1.

5. The vehicle blind spot warning method according to claim 1, characterized in that: When the sensor (10) recognizes that a foreign object exists in the warning area (A), a second warning element arranged in the vehicle operates and sends a warning message to the driver and passengers. The warning message sent by the second warning element is a sound signal or a light signal.

6. The vehicle blind spot warning method according to claim 1, characterized in that: A sensor (10) disposed on the periphery of the vehicle body monitors whether there is a foreign object in a preset safety restricted area (B), wherein the safety restricted area (B) is located in a portion of the vehicle body adjacent to the warning area (A), and the maximum distance between the safety restricted area (B) and the vehicle body is smaller than the maximum distance between the warning area (A) and the vehicle body; When the sensor (10) identifies the presence of a foreign object in the safety restricted area (B), the vehicle control system sends a signal to brake the vehicle or reduce the vehicle's running speed.

7. The vehicle blind spot warning method according to claim 1, characterized in that: The sensor (10) is any one of an ultrasonic distance measuring sensor, a short-range microwave sensor, an image sensor, an infrared sensor, and a laser distance measuring sensor, or a combination of the aforementioned sensors; the first warning element and the second warning element emit sound information or light signals when in operation.

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