CN114953999A - Front radar-based front vehicle starting driving reminding method - Google Patents

Abstract

The invention belongs to the technical field of vehicle intelligent control methods, and in particular relates to a front-radar-based reminding method for the start of a vehicle in front; when the vehicle is in a stopped state, if the front-of-vehicle radar detects the distance between the vehicle and the vehicle in front, it lasts for 2 seconds If it does not change, it will enter the mode of continuously detecting the start of the preceding vehicle. In this mode, when the front radar of the vehicle detects that the distance between the vehicle and the vehicle in front has increased by the calibration distance, it will judge that the vehicle in front has started and send a reminder signal. The vehicle meter receives the reminder signal transmitted by the radar in front of the vehicle, and sends out a reminder voice or a set reminder tone; the present invention realizes the driving reminder of the preceding vehicle on the basis of the existing hardware, and effectively relieves the driver's nervousness when driving in a congested road section. sense, provide a perfect driving experience and provide a safe driving environment.

Description

A front-end radar-based reminder method for the start of the vehicle ahead

technical field

The invention belongs to the technical field of vehicle intelligent control methods, and in particular relates to a method for reminding a preceding vehicle to start and drive based on a front radar.

Background technique

As the number of vehicles increases, traffic congestion is very common. When parking and waiting, the driver needs to keep a high degree of attention to observe whether the vehicle in front starts to drive. If the vehicle in front starts to drive and we do not notice it, it will cause the whole street to go out. The operation efficiency is low, and at the same time, a series of unpleasant things may occur, such as blocking the queue, being urged by the horn of the car behind, which will bring trouble to the driver, so driving on a congested road often makes the driver in a state of high tension. However, there is currently no solution for this situation.

SUMMARY OF THE INVENTION

In order to overcome the above problems, the present invention provides a method for reminding the vehicle ahead based on the front radar to start driving, which can be realized by making full use of the existing equipment of the vehicle, effectively relieve the driver's highly tense state in the congested road section, and observe whether the vehicle ahead is not through the front radar of the vehicle. When the vehicle starts, the radar in front of the vehicle will detect changes, thus reminding the driver that the vehicle in front has started and providing a safe driving environment.

A method for reminding a vehicle ahead to start driving based on a front radar, comprising the following contents:

Step 1, set the calibration distance;

Step 2: When the vehicle is in a stopped state, if the radar in front of the vehicle detects that the distance between the vehicle and the vehicle in front remains unchanged for 2 seconds, it will enter the mode of continuous detection of the vehicle ahead. In this mode, when the radar in front of the vehicle detects When the distance between the vehicle and the vehicle in front increases the calibration distance, it is judged that the vehicle in front has started to drive, and a reminder signal is issued;

Step 3: The vehicle meter receives the reminder signal transmitted by the front radar of the vehicle, and sends out a reminder voice or a set reminder tone.

In the step 1, the calibration distance is set to 10cm.

In the second step, when the vehicle is in a stopped state, the vehicle speed is less than 1 km/H.

In the second step, the distance between the vehicle and the vehicle in front detected by the front radar of the vehicle is the distance between the front of the vehicle and the rear of the vehicle in front.

In the second step, if the front radar of the vehicle detects that the distance between the vehicle and the vehicle in front does not change within 2 seconds, it will not enter the starting state mode of continuously detecting the vehicle in front.

In the step 2, in the mode of continuously detecting the starting state of the preceding vehicle, when the front radar of the vehicle detects that the distance between the vehicle and the preceding vehicle has not increased to the calibrated distance, it is judged that the preceding vehicle has not started to drive, and a reminder signal is not issued. .

Beneficial effects of the present invention:

The present invention can effectively relieve the driver's highly tense state in the congested road section, observe whether the vehicle in front starts through the front radar of the vehicle, and when the front vehicle starts, the front radar of the vehicle will detect the change, thereby reminding the driver that the vehicle in front has started to drive, Provide a safe driving environment.

On the basis of the existing hardware, the present invention realizes the driving reminder of the preceding vehicle, effectively relieves the driver's nervousness when driving in a congested road section, provides a perfect driving experience, and provides a safe driving environment.

Description of drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings to be used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the contents of the embodiments of the present invention and these drawings without any creative effort.

FIG. 1 is a flow chart of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "left", "right" and other azimuth or positional relationships are based on the azimuth or positional relationship shown in the accompanying drawings, which are only for the convenience of description and simplifying operations. It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

Example 1

As shown in Figure 1, a method for reminding the vehicle ahead to start driving based on the front radar includes the following contents:

Step 1, set the calibration distance;

Step 2: When the vehicle is in a stopped state, if the radar in front of the vehicle detects that the distance between the vehicle and the vehicle in front remains unchanged for 2 seconds, it will enter the mode of continuous detection of the vehicle ahead. In this mode, when the radar in front of the vehicle detects When the distance between the vehicle and the vehicle in front increases the calibration distance, it is judged that the vehicle in front has started to drive, and a reminder signal is issued;

Step 3: The vehicle meter receives the reminder signal transmitted by the front radar of the vehicle, and sends out a reminder voice or a set reminder tone.

In the step 1, the calibration distance is set to 10cm.

In the second step, when the vehicle is in a stopped state, the vehicle speed is less than 1 km/H.

In the second step, the distance between the vehicle and the vehicle in front detected by the front radar of the vehicle is the distance between the front of the vehicle and the rear of the vehicle in front. Specifically, it is the distance between the frontmost position of the front of the vehicle and the rearmost position of the preceding vehicle.

In the second step, if the front radar of the vehicle detects that the distance between the vehicle and the vehicle in front does not change within 2 seconds, it will not enter the starting state mode of continuously detecting the vehicle in front.

In the step 2, in the mode of continuously detecting the starting state of the preceding vehicle, when the front radar of the vehicle detects that the distance between the vehicle and the preceding vehicle has not increased to the calibrated distance, it is judged that the preceding vehicle has not started to drive, and a reminder signal is not issued. .

Example 2

A front-radar-based reminder method for the start of a vehicle ahead, the method is mainly realized by the following two parts:

1. Front radar

It is used to identify the distance between the vehicle and the vehicle in front. The specific reminder distance is realized by calibration. For example, the calibration distance is 10cm, then when the vehicle is in a stopped state (vehicle speed < 1km/H, this parameter can be changed), if the distance to the vehicle in front remains unchanged for 2 seconds, it will enter the mode of continuous detection of the vehicle ahead. When the distance increases by 10cm, it is judged that the vehicle in front has started to drive, and a reminder signal is issued.

2. Instrument

After the instrument receives the prompt signal, it will send out a prompt voice or a set prompt tone. The prompt mode is set in the instrument.

The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, however, the protection scope of the present invention is not limited to the specific details in the above-mentioned embodiments. Within the technical scope disclosed by the present invention, equivalent replacements or changes are made according to the technical solutions and the inventive concept of the present invention, and these simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present invention provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (6)

1. A preceding vehicle starting and running reminding method based on a preceding radar is characterized by comprising the following steps:

step one, setting a calibration distance;

step two, when the vehicle is in a stop state, if the distance between the vehicle and the front vehicle is detected to be unchanged for 2 seconds by the radar in front of the vehicle, entering a mode of continuously detecting a starting state of the front vehicle, and under the mode, when the radar in front of the vehicle detects that the distance between the vehicle and the front vehicle is increased by a calibration distance, judging that the front vehicle is started to run, and sending a reminding signal;

and step three, the vehicle instrument receives the reminding signal transmitted by the radar in front of the vehicle and sends out a reminding voice or a set reminding sound.

2. The method for reminding the start and running of the preceding vehicle based on the front radar as claimed in claim 1, wherein the set distance in the first step is 10 cm.

3. The method for reminding the start and running of the preceding vehicle based on the preceding radar as claimed in claim 1, wherein the vehicle speed is less than 1km/H when the vehicle is in a stopped state in the second step.

4. The method as claimed in claim 1, wherein the distance between the vehicle and the preceding vehicle detected by the front radar in step two is the distance between the vehicle head and the preceding vehicle tail.

5. The method for reminding the start of the vehicle before running according to claim 1, wherein in the second step, if the vehicle front radar detects that the distance between the vehicle and the vehicle before is not changed within 2 seconds, the vehicle front radar does not enter the mode of continuously detecting the start state of the vehicle before running.

6. The method for reminding the vehicle to start and run before based on the front radar as claimed in claim 1, wherein in the mode of continuously detecting the starting state of the vehicle before in the second step, when the radar in front of the vehicle detects that the distance between the vehicle and the vehicle in front is not increased to the calibrated distance, it is determined that the vehicle in front is not started and run, and no reminding signal is sent out.

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