CN110686698A - Automobile speed limit fusion reminding method based on weather conditions - Google Patents
Automobile speed limit fusion reminding method based on weather conditions Download PDFInfo
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- CN110686698A CN110686698A CN201911017613.5A CN201911017613A CN110686698A CN 110686698 A CN110686698 A CN 110686698A CN 201911017613 A CN201911017613 A CN 201911017613A CN 110686698 A CN110686698 A CN 110686698A
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- speed limit
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- road
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3691—Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3629—Guidance using speech or audio output, e.g. text-to-speech
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
Abstract
The invention provides a method for reminding fusion of automobile speed limit based on weather conditions, which comprises the steps that an on-board processor acquires the weather conditions of a current road section, secondary confirmation is carried out on the current weather conditions outside an automobile through an outside-automobile camera, the visibility of a current road is acquired by the on-board processor through the outside-automobile camera after the weather conditions are confirmed to be correct, and if the on-board processor judges that the current weather conditions are severe and the visibility of the road is low, a driver is prompted to be a general speed limit through an instrument and navigation voice; the vehicle-mounted processor detects a speed limit sign in a current road visible range, if the speed limit sign can be detected, the vehicle-mounted processor identifies the number on the speed limit sign, and prompts a driver to limit the speed for the road sign at present through an instrument and navigation voice; and the vehicle-mounted processor reads the navigation speed limit information of the current road section, and if the navigation speed limit exists in the current road section, the vehicle-mounted processor prompts the driver that the current road section is the navigation speed limit through an instrument and navigation voice.
Description
Technical Field
The invention relates to the field of hydrogen energy automobiles, in particular to an automobile speed limit fusion reminding method based on weather conditions.
Background
With the development of vehicle technology, the stability and comfort of the vehicle are gradually improved at high speed. This allows the driver to accelerate quickly to higher vehicle speeds without feeling as great, but at too high a speed it is not safe and often violated by excessive speed. Therefore, an on-board system is especially necessary to enable the driver to know the current speed accurately in real time and prompt the driver to overspeed.
Disclosure of Invention
The invention aims to solve the technical problem that a driver cannot obtain real-time and accurate speed prompt at present, and provides a method for reminding fusion of automobile speed limit based on weather conditions to solve the technical defects.
A method for reminding vehicle speed limit fusion based on weather conditions is realized based on a vehicle-mounted system, the vehicle-mounted system comprises an external camera, a vehicle-mounted processor and vehicle-mounted navigation, and the method for reminding vehicle speed limit fusion based on weather conditions comprises the following steps:
s1, the vehicle-mounted processor acquires the weather condition of the current road section through the Internet, and secondarily confirms the current weather condition outside the vehicle through the camera outside the vehicle, after the weather condition is confirmed to be correct, the vehicle-mounted processor acquires the visibility of the current road through the camera outside the vehicle, if the vehicle-mounted processor judges that the current weather condition is severe and the visibility of the road is low, the vehicle-mounted processor prompts a driver to be a universal speed limit through an instrument and navigation voice, and if the vehicle-mounted processor judges that the current weather condition is normal and the visibility of the road is normal, the step S2 is carried out;
s2, detecting a speed limit sign in a current road visible range through the camera outside the vehicle by the vehicle-mounted processor, if the speed limit sign can be detected, identifying numbers on the speed limit sign by the vehicle-mounted processor, and prompting a driver to limit the speed for the current road sign through an instrument and navigation voice, if the speed limit sign is not detected, performing S3;
s3, the vehicle-mounted processor reads the navigation speed limit information of the current road section through vehicle-mounted navigation, if the current road section has the navigation speed limit, the vehicle-mounted processor prompts the driver that the current road section is the navigation speed limit through an instrument and navigation voice, and if the current road section does not have the navigation speed limit, the step S1 is repeated.
Further, in step S2, when the vehicle is in the road sign speed limit state, the vehicle-mounted processor may detect a speed limit removal sign within a current road visible range through the vehicle-mounted camera, and when the speed limit removal sign is detected, cancel the road sign speed limit prompt.
Further, when the vehicle-mounted processor identifies any speed limit, the driver is prompted to have a speed limit requirement on the instrument, and if the speed is removed or no speed requirement exists, the prompt disappears; and if the driver does not overspeed currently, the driver is not prompted.
Further, the vehicle-mounted processor limits the speed according to the priority requirement based on the general speed limit required by the weather condition.
Further, the specific speed limit condition includes:
a. the navigation speed limit is consistent with the road sign speed limit, and a corresponding speed limit value is displayed;
b. if the navigation speed limit exists but the road sign speed limit does not exist, displaying the navigation speed limit value;
c. if the road sign speed limit exists but the navigation speed limit does not exist, displaying the road sign speed limit numerical value;
d. the navigation speed limit is inconsistent with the road sign speed limit, and the road sign speed limit value is displayed;
e. if a speed limit is determined in the current road section, no road sign speed limit exists in the next road section, and a navigation speed limit exists, displaying a navigation speed limit numerical value;
f. if a speed limit is determined in the current road section, the navigation speed limit is not available in the next road section, and the road sign speed limit is available, displaying the road sign speed limit value;
g. if a speed limit is determined in the current road section, no navigation speed limit exists in the next road section, and a road sign speed limit exists, displaying the road sign speed limit, and after the speed limit is removed from the sign, performing speed limit prompt according to the previous navigation speed limit;
h. and when the current weather is acquired to be severe weather meeting fog, rain, snow, dust and hail, and the vehicle-mounted processor secondarily confirms that no fault exists through the external camera or confirms that the visibility of the road is within 50 meters, displaying a general speed limit value.
Compared with the prior art, the invention has the beneficial effects that:
1. integrating weather condition information and the speed limit of the known general road, and giving the speed limit under the current weather condition;
2. a logic for navigating to inform the position of the electronic monitoring area so as to remind the driver again;
3. and integrating the weather speed limit, the navigation speed limit and the road identification speed limit to give an accurate speed prompt.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of a method for reminding vehicle speed limit fusion based on weather conditions.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
A method for reminding fusion of automobile speed limit based on weather conditions is realized based on a vehicle-mounted system, the vehicle-mounted system comprises an external camera, a vehicle-mounted processor and vehicle-mounted navigation, as shown in figure 1, the method for reminding fusion of automobile speed limit based on weather conditions comprises the following steps:
s1, the vehicle-mounted processor acquires the weather condition of the current road section through the Internet, and secondarily confirms the current weather condition outside the vehicle through the camera outside the vehicle, after the weather condition is confirmed to be correct, the vehicle-mounted processor acquires the visibility of the current road through the camera outside the vehicle, if the vehicle-mounted processor judges that the current weather condition is severe and the visibility of the road is low, the vehicle-mounted processor prompts a driver to be a universal speed limit through an instrument and navigation voice, and if the vehicle-mounted processor judges that the current weather condition is normal and the visibility of the road is normal, the step S2 is carried out;
s2, detecting a speed limit sign in a current road visible range through the camera outside the vehicle by the vehicle-mounted processor, if the speed limit sign can be detected, identifying numbers on the speed limit sign by the vehicle-mounted processor, and prompting a driver to limit the speed for the current road sign through an instrument and navigation voice, if the speed limit sign is not detected, performing S3;
s3, the vehicle-mounted processor reads the navigation speed limit information of the current road section through vehicle-mounted navigation, if the current road section has the navigation speed limit, the vehicle-mounted processor prompts the driver that the current road section is the navigation speed limit through an instrument and navigation voice, and if the current road section does not have the navigation speed limit, the step S1 is repeated.
In step S2, when the vehicle is in the road sign speed limit state, the vehicle-mounted processor detects a speed limit removal sign within the current road visible range through the vehicle-mounted camera, and cancels the road sign speed limit prompt when the speed limit removal sign is detected.
When the vehicle-mounted processor identifies any speed limit, the driver is prompted to have a speed limit requirement on the instrument, and if the speed is removed or no speed requirement exists, the prompt disappears; and if the driver does not overspeed currently, the driver is not prompted.
The vehicle-mounted processor is used for limiting speed according to the requirement of the weather condition by taking the universal limiting speed as a priority requirement.
The specific speed limit conditions include:
a. the navigation speed limit is consistent with the road sign speed limit, and a corresponding speed limit value is displayed;
b. if the navigation speed limit exists but the road sign speed limit does not exist, displaying the navigation speed limit value;
c. if the road sign speed limit exists but the navigation speed limit does not exist, displaying the road sign speed limit numerical value;
d. the navigation speed limit is inconsistent with the road sign speed limit, and the road sign speed limit value is displayed;
e. if a speed limit is determined in the current road section, no road sign speed limit exists in the next road section, and a navigation speed limit exists, displaying a navigation speed limit numerical value;
f. if a speed limit is determined in the current road section, the navigation speed limit is not available in the next road section, and the road sign speed limit is available, displaying the road sign speed limit value;
g. if a speed limit is determined in the current road section, no navigation speed limit exists in the next road section, and a road sign speed limit exists, displaying the road sign speed limit, and after the speed limit is removed from the sign, performing speed limit prompt according to the previous navigation speed limit;
h. when the current weather is acquired to be severe weather meeting fog, rain, snow, dust and hail, and the vehicle-mounted processor secondarily confirms that no fault exists through the external camera or confirms that the visibility of the road is within 50 meters, a general speed limit value is displayed, and the general speed limit is generally set to be 30 kilometers per hour.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The method for reminding the fusion of the automobile speed limit based on the weather conditions is realized based on an on-board system, the on-board system comprises an external camera, an on-board processor and an on-board navigation, and the method for reminding the fusion of the automobile speed limit based on the weather conditions is characterized by comprising the following steps of:
s1, the vehicle-mounted processor acquires the weather condition of the current road section through the Internet, and secondarily confirms the current weather condition outside the vehicle through the camera outside the vehicle, after the weather condition is confirmed to be correct, the vehicle-mounted processor acquires the visibility of the current road through the camera outside the vehicle, if the vehicle-mounted processor judges that the current weather condition is severe and the visibility of the road is low, the vehicle-mounted processor prompts a driver to be a universal speed limit through an instrument and navigation voice, and if the vehicle-mounted processor judges that the current weather condition is normal and the visibility of the road is normal, the step S2 is carried out;
s2, detecting a speed limit sign in a current road visible range through the camera outside the vehicle by the vehicle-mounted processor, if the speed limit sign can be detected, identifying numbers on the speed limit sign by the vehicle-mounted processor, and prompting a driver to limit the speed for the current road sign through an instrument and navigation voice, if the speed limit sign is not detected, performing S3;
s3, the vehicle-mounted processor reads the navigation speed limit information of the current road section through vehicle-mounted navigation, if the current road section has the navigation speed limit, the vehicle-mounted processor prompts the driver that the current road section is the navigation speed limit through an instrument and navigation voice, and if the current road section does not have the navigation speed limit, the step S1 is repeated.
2. The weather-condition-based automobile speed limit fusion reminding method as claimed in claim 1, wherein in step S2, when the automobile is in the road sign speed limit state, the onboard processor detects a speed limit removal sign within the visible range of the current road through the camera outside the automobile, and when the speed limit removal sign is detected, the road sign speed limit prompt is cancelled.
3. The method for reminding the fusion of the vehicle speed limit and the vehicle speed limit based on the weather conditions as claimed in claim 1, wherein when the vehicle-mounted processor identifies any speed limit, the driver is prompted to have a speed limit requirement on the instrument, and if the speed is removed or no speed requirement exists, the prompt disappears; and if the driver does not overspeed currently, the driver is not prompted.
4. The weather-based vehicle speed limit fusion reminding method of claim 1, wherein the vehicle-mounted processor is configured to limit the speed according to the weather condition requirement by taking the universal speed limit as the priority requirement.
5. The weather-condition-based automobile speed limit fusion reminding method as claimed in claim 1, wherein the specific speed limit condition comprises:
a. the navigation speed limit is consistent with the road sign speed limit, and a corresponding speed limit value is displayed;
b. if the navigation speed limit exists but the road sign speed limit does not exist, displaying the navigation speed limit value;
c. if the road sign speed limit exists but the navigation speed limit does not exist, displaying the road sign speed limit numerical value;
d. the navigation speed limit is inconsistent with the road sign speed limit, and the road sign speed limit value is displayed;
e. if a speed limit is determined in the current road section, no road sign speed limit exists in the next road section, and a navigation speed limit exists, displaying a navigation speed limit numerical value;
f. if a speed limit is determined in the current road section, the navigation speed limit is not available in the next road section, and the road sign speed limit is available, displaying the road sign speed limit value;
g. if a speed limit is determined in the current road section, no navigation speed limit exists in the next road section, and a road sign speed limit exists, displaying the road sign speed limit, and after the speed limit is removed from the sign, performing speed limit prompt according to the previous navigation speed limit;
h. and when the current weather is acquired to be severe weather meeting fog, rain, snow, dust and hail, and the vehicle-mounted processor secondarily confirms that no fault exists through the external camera or confirms that the visibility of the road is within 50 meters, displaying a general speed limit value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911017613.5A CN110686698A (en) | 2019-10-24 | 2019-10-24 | Automobile speed limit fusion reminding method based on weather conditions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911017613.5A CN110686698A (en) | 2019-10-24 | 2019-10-24 | Automobile speed limit fusion reminding method based on weather conditions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445710A (en) * | 2020-04-02 | 2020-07-24 | 齐鲁交通信息集团有限公司 | Road automatic control method in severe weather |
| CN113034902A (en) * | 2021-03-05 | 2021-06-25 | 阿里云计算有限公司 | Traffic control method and device and electronic equipment |
| CN114446071A (en) * | 2022-02-28 | 2022-05-06 | 重庆长安汽车股份有限公司 | Road speed limit information fusion judgment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108986507A (en) * | 2018-08-31 | 2018-12-11 | 苏州神指微电子有限公司 | A kind of vehicle-mounted weather auxiliary monitoring and variable speed-limit system for prompting |
| CN109410617A (en) * | 2018-10-30 | 2019-03-01 | 江铃汽车股份有限公司 | Automobile speed limit indication control method, device, system and automobile |
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2019
- 2019-10-24 CN CN201911017613.5A patent/CN110686698A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108986507A (en) * | 2018-08-31 | 2018-12-11 | 苏州神指微电子有限公司 | A kind of vehicle-mounted weather auxiliary monitoring and variable speed-limit system for prompting |
| CN109410617A (en) * | 2018-10-30 | 2019-03-01 | 江铃汽车股份有限公司 | Automobile speed limit indication control method, device, system and automobile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445710A (en) * | 2020-04-02 | 2020-07-24 | 齐鲁交通信息集团有限公司 | Road automatic control method in severe weather |
| CN113034902A (en) * | 2021-03-05 | 2021-06-25 | 阿里云计算有限公司 | Traffic control method and device and electronic equipment |
| CN114446071A (en) * | 2022-02-28 | 2022-05-06 | 重庆长安汽车股份有限公司 | Road speed limit information fusion judgment method |
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