CN110702140A - Automobile speed limit fusion reminding method based on positioning - Google Patents
Automobile speed limit fusion reminding method based on positioning Download PDFInfo
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- CN110702140A CN110702140A CN201911018360.3A CN201911018360A CN110702140A CN 110702140 A CN110702140 A CN 110702140A CN 201911018360 A CN201911018360 A CN 201911018360A CN 110702140 A CN110702140 A CN 110702140A
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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
- 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
- G01C21/3644—Landmark guidance, e.g. using POIs or conspicuous other objects
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Abstract
The invention provides a positioning-based automobile speed limit fusion reminding method.A vehicle-mounted processor detects a speed limit sign in a current road visible range through an outer camera, 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; the vehicle-mounted processor reads the navigation speed limit information of the current road section through vehicle-mounted navigation, and if the current road section has navigation speed limit, the vehicle-mounted processor prompts a driver that the current road section is the navigation speed limit through an instrument and navigation voice; the vehicle-mounted processor positions the current road section through vehicle-mounted navigation, acquires road information of the current road section, inquires a universal speed limit numerical value of the current road, and prompts a driver that the current road section is the universal speed limit through an instrument and navigation voice if the universal speed limit exists on the current road.
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 positioning.
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 positioning-based automobile speed limit fusion reminding method to solve the technical defects.
A method for reminding fusion of automobile speed limit based on positioning 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 fusion of automobile speed limit based on positioning comprises the following steps:
s1, 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 S2;
s2, 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 a 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 S3 is carried out;
s3, the vehicle-mounted processor positions the current road section through vehicle-mounted navigation, acquires road information of the current road section, inquires a universal speed limit value of the current road, if the current road has a universal speed limit, the vehicle-mounted processor prompts a driver that the current road section is the universal speed limit through an instrument and navigation voice, and if the single road does not have the universal speed limit, the step S1 is repeated.
Further, in step S1, 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 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. if the central line of the road is not identified by the camera under the conditions of no navigation speed limit and no road sign speed limit, 30 kilometers per hour are used for positioning urban roads, and 40 kilometers per hour are used for highways;
i. if the speed is limited without navigation speed limit and road sign, the camera identifies the road with only 1 motor lane in the same direction, and the urban road is 50 kilometers per hour and the highway is 70 kilometers per hour according to the positioning;
j. if the vehicle is positioned to a non-motor vehicle lane in and out under the condition of no navigation speed limit and no road sign speed limit, the highest running speed can not exceed 30 kilometers per hour when the vehicle passes through a railway crossing, a sharp curve, a narrow road and a narrow bridge;
k. if the speed limit is determined to be the expressway under the conditions of no navigation speed limit and no road sign speed limit, the highest speed is not more than 120 kilometers per hour, and the lowest speed is not less than 60 kilometers per hour.
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 positioning 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 an automobile speed limit fusion reminding method based on positioning according to the present invention.
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 positioning is realized based on a vehicle-mounted system, the vehicle-mounted system comprises an external camera, a vehicle-mounted processor and a vehicle-mounted navigation, as shown in figure 1, the method for reminding fusion of automobile speed limit based on positioning comprises the following steps:
s1, 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 S2;
s2, 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 a 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 S3 is carried out;
s3, the vehicle-mounted processor positions the current road section through vehicle-mounted navigation, acquires road information of the current road section, inquires a universal speed limit value of the current road, if the current road has a universal speed limit, the vehicle-mounted processor prompts a driver that the current road section is the universal speed limit through an instrument and navigation voice, and if the single road does not have the universal speed limit, the step S1 is repeated.
In step S1, 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 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. if the central line of the road is not identified by the camera under the conditions of no navigation speed limit and no road sign speed limit, 30 kilometers per hour are used for positioning urban roads, and 40 kilometers per hour are used for highways;
i. if the speed is limited without navigation speed limit and road sign, the camera identifies the road with only 1 motor lane in the same direction, and the urban road is 50 kilometers per hour and the highway is 70 kilometers per hour according to the positioning;
j. if the vehicle is positioned to a non-motor vehicle lane in and out under the condition of no navigation speed limit and no road sign speed limit, the highest running speed can not exceed 30 kilometers per hour when the vehicle passes through a railway crossing, a sharp curve, a narrow road and a narrow bridge;
k. if the speed limit is determined to be the expressway under the conditions of no navigation speed limit and no road sign speed limit, the highest speed is not more than 120 kilometers per hour, and the lowest speed is not less than 60 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 (4)
1. A method for reminding fusion of automobile speed limit based on positioning is realized based on a vehicle-mounted system, the vehicle-mounted system comprises an external camera, a vehicle-mounted processor and a vehicle-mounted navigation, and is characterized in that the method for reminding fusion of automobile speed limit based on positioning comprises the following steps:
s1, 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 S2;
s2, 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 a 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 S3 is carried out;
s3, the vehicle-mounted processor positions the current road section through vehicle-mounted navigation, acquires road information of the current road section, inquires a universal speed limit value of the current road, if the current road has a universal speed limit, the vehicle-mounted processor prompts a driver that the current road section is the universal speed limit through an instrument and navigation voice, and if the single road does not have the universal speed limit, the step S1 is repeated.
2. The positioning-based automobile speed limit fusion reminding method as claimed in claim 1, wherein in step S1, when the automobile is in the road sign speed limit state, the onboard processor detects the speed limit removal sign within the current road visible range through the external camera, and when the speed limit removal sign is detected, the road sign speed limit prompt is cancelled.
3. The positioning-based automobile speed limit fusion reminding method as claimed in claim 1, wherein when the onboard processor identifies any speed limit, the onboard processor prompts a driver to have a speed limit requirement, 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 positioning-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. if the central line of the road is not identified by the camera under the conditions of no navigation speed limit and no road sign speed limit, 30 kilometers per hour are used for positioning urban roads, and 40 kilometers per hour are used for highways;
i. if the speed is limited without navigation speed limit and road sign, the camera identifies the road with only 1 motor lane in the same direction, and the urban road is 50 kilometers per hour and the highway is 70 kilometers per hour according to the positioning;
j. if the vehicle is positioned to a non-motor vehicle lane in and out under the condition of no navigation speed limit and no road sign speed limit, the highest running speed can not exceed 30 kilometers per hour when the vehicle passes through a railway crossing, a sharp curve, a narrow road and a narrow bridge;
k. if the speed limit is determined to be the expressway under the conditions of no navigation speed limit and no road sign speed limit, the highest speed is not more than 120 kilometers per hour, and the lowest speed is not less than 60 kilometers per hour.
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| CN201911018360.3A CN110702140A (en) | 2019-10-24 | 2019-10-24 | Automobile speed limit fusion reminding method based on positioning |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466139A (en) * | 2020-11-25 | 2021-03-09 | 重庆长安汽车股份有限公司 | Speed limit fusion method and system based on multiple sensors, vehicle and storage medium |
| CN112735160A (en) * | 2020-09-22 | 2021-04-30 | 北京百度网讯科技有限公司 | Driving behavior reminding method and device, cloud server 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 |
| CN114724380A (en) * | 2020-12-22 | 2022-07-08 | 智道网联科技(北京)有限公司 | Vehicle speed limit recognition processing method and device, intelligent vehicle-mounted terminal and vehicle networking system |
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Effective date of registration: 20210519 Address after: 046000 7th floor, block a, Yuecheng financial service center, No.36 zhuomaxi street, Changzhi City, Shanxi Province Applicant after: Zhongji hydrogen energy automobile (Changzhi) Co.,Ltd. Address before: Room 101, 1 / F, building 13, phase I, industrial incubation base, east of future third road and south of Keji fifth road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant before: WUHAN LUOGEFU HYDROGEN ENERGY AUTOMOBILE Co.,Ltd. |