CN211335970U - Safe distance prompting device for vehicles in narrow road section - Google Patents
Safe distance prompting device for vehicles in narrow road section Download PDFInfo
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- CN211335970U CN211335970U CN201922329509.1U CN201922329509U CN211335970U CN 211335970 U CN211335970 U CN 211335970U CN 201922329509 U CN201922329509 U CN 201922329509U CN 211335970 U CN211335970 U CN 211335970U
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Abstract
The utility model discloses a safe distance prompting device for vehicles in narrow road sections, belonging to the technical field of vehicle active safety; the device comprises a perception prompt component arranged on the top of the vehicle, transverse distance sensors arranged on two sides of the vehicle body and a longitudinal distance sensor arranged on a front bumper of the vehicle; the perception prompting component comprises a laser transmitter, a humidity sensor and a data processing module; the utility model discloses remove the problem of rubbing to the pieces of vehicle on the narrow road, designed the horizontal safe distance suggestion and the vertical safe distance suggestion of vehicle, make the driver can in time learn the both sides of vehicle and whether have the risk of removing rubbing to pieces with other structures to avoid removing the occurence of failure to remove.
Description
Technical Field
The utility model belongs to the technical field of the vehicle initiative safety, especially, relate to a safe distance suggestion device of narrow highway section vehicle.
Background
When a vehicle passes through a road with a narrow space, due to the fact that two sides of the road are narrow, in addition, a driver has a visual field blind area on the right side of the vehicle, and when the right side of the vehicle is close to roadside obstacles, scratching is easy to happen. The problem of scratching is very common on large trucks, and for large trucks with full loads, scratching easily causes goods to fall off or the driving direction of a vehicle is out of control, so that traffic safety is damaged.
Particularly, when a vehicle runs in a tunnel or on a bridge, both light rays in the tunnel and structures on two sides of the bridge have adverse effects on the sight of a driver, so that the scratch problem is more likely to occur, and the driving safety is seriously affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide a safe distance prompting device for vehicles in narrow road sections, which prompts the situation that the transverse distance is too small during the running of the vehicles, and further can avoid the rubbing of the vehicles with structures on two sides when the vehicles run in tunnels and bridges; meanwhile, the fact that the longitudinal following distance of the vehicle is too small in the running process is prompted, and the rear-end collision accident of the vehicle caused by the emergency accident in the front is avoided.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A safe distance prompting device for vehicles in narrow road sections comprises a sensing prompting component arranged on the top of a vehicle, transverse distance sensors arranged on two sides of the vehicle body and a longitudinal distance sensor arranged on a front bumper of the vehicle; the sensing prompt component comprises a laser transmitter, a humidity sensor and a data processing module;
the transverse distance sensor is used for acquiring the transverse distance between two sides of the vehicle body and a roadside structure in real time and transmitting the transverse distance to the data processing module;
the longitudinal distance sensor is used for acquiring the longitudinal distance between the vehicle and the front vehicle in real time and transmitting the longitudinal distance to the data processing module;
the humidity sensor is used for acquiring current air humidity information in real time and transmitting the humidity information to the data processing module;
the data processing module judges whether to carry out transverse safe distance prompt according to the received transverse distance and transmits a judgment result to the laser transmitter; the laser transmitter starts a corresponding oblique laser lamp according to the received instruction to transmit red laser to the oblique front of the vehicle to prompt the driver to pay attention to the transverse distance of the corresponding side;
the data processing module is used for receiving vehicle speed information transmitted by a vehicle CAN bus; judging whether longitudinal safe distance prompt is carried out or not according to the received longitudinal distance, real-time vehicle speed and humidity information, and transmitting a judgment result to a laser transmitter; the laser transmitter starts the corresponding forward laser lamp according to the received instruction to transmit red laser to the front of the vehicle, and prompts a driver to pay attention to the vehicle following distance.
Further, the longitudinal distance sensor is a solid-state lidar.
Further, the transverse distance sensor is a Steel-mate radar distance sensor.
Furthermore, the laser emitter, the humidity sensor and the data processing module are arranged in the transparent organic glass shell, the side face of the organic glass shell, which is located at the front end of the vehicle, is provided with an opening, the sensing end of the humidity sensor extends out of the opening of the organic glass shell, and the laser emitting end of the laser emitter faces the opening of the organic glass shell.
Further, laser emitter contains two slant laser lamps and just to the laser lamp, and two slant laser lamps transmit the laser of the left front side and the right front side of orientation vehicle traffic direction respectively, just to the laser lamp transmission orientation vehicle traffic direction's laser.
Further, the data processing module is an ARM processor, a single chip microcomputer or an industrial personal computer.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model designs the transverse safety distance prompt and the longitudinal safety distance prompt of the vehicle aiming at the problem of rubbing the vehicle on the narrow road, so that a driver can timely know whether the two sides of the vehicle have the risk of rubbing the other structures, and can be guided to timely adjust the driving direction so as to avoid rubbing accidents; particularly, when the vehicle is positioned in a narrow road section such as a tunnel, a bridge and the like and runs in an environment with poor driver sight, or the vehicle is a large truck and the driver sight blind area is large, the vehicle can be prevented from being scratched and rubbed, and the traffic driving safety is improved; and simultaneously, the utility model discloses a combine the safety of air humidity calculation current vehicle with car distance, and then guarantee the vertical safety of traveling of vehicle, avoid the driver to neglect often with the car distance and the rear-end collision accident that causes about the adjustment, fundamentally stops driving accident's emergence.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic connection diagram of a safe distance prompting device for vehicles in a narrow road section according to the present invention;
fig. 2 is a schematic diagram of a transverse safe distance prompt according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a longitudinal safe distance prompt according to an embodiment of the present invention.
Detailed Description
The embodiments and effects of the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present invention provides a safe distance indicating device for vehicles in narrow road, which includes a sensing and indicating component installed on the top of the vehicle, lateral distance sensors installed on both sides of the vehicle body, and a longitudinal distance sensor installed on the front bumper of the vehicle; the sensing prompt component comprises a laser transmitter, a humidity sensor and a data processing module; laser emitter, humidity transducer and data processing module set up in a transparent organic glass shell, the side opening that is located the vehicle front end of organic glass shell, humidity transducer's response end stretches out the opening part of organic glass shell, laser emitter's laser emission end is towards the opening part of organic glass shell to make organic glass shell can protect laser emitter, humidity transducer and data processing module etc. not drenched by the wind-blown rain, prolong its life, guaranteed simultaneously that laser emitter and humidity transducer can normally work.
The transverse distance sensor is used for acquiring the transverse distance between two sides of the vehicle body and a roadside structure in real time and transmitting the transverse distance to the data processing module through an RS232 serial port; the longitudinal distance sensor is used for acquiring the longitudinal distance between the vehicle and the front vehicle in real time and transmitting the longitudinal distance to the data processing module through an RS232 serial port;
the humidity sensor is used for acquiring current air humidity information in real time and transmitting the humidity information to the data processing module through an RS232 serial port; the data processing module judges whether to carry out transverse safe distance prompt according to the received transverse distance and transmits a judgment result to the laser transmitter; the laser emitter starts a corresponding oblique laser lamp to emit red laser to the oblique front of the vehicle, and prompts a driver to pay attention to the transverse distance of the corresponding side; the data processing module is used for receiving vehicle speed information transmitted by a vehicle CAN bus; judging whether longitudinal safe distance prompt is carried out or not according to the received longitudinal distance, real-time vehicle speed and humidity information, and transmitting a judgment result to a laser transmitter; the laser emitter starts the corresponding forward laser lamp to emit red laser to the front of the vehicle, and prompts a driver to pay attention to the following distance.
The embodiment of the utility model provides an adopt the high resolution's that Innoviz provided solid-state laser radar, its specific model is innovizPro, as longitudinal distance sensor; the data processing module is an ARM processor, a single chip microcomputer or an industrial personal computer; the laser transmitter is BANNER-S186 ELD; the transverse distance sensors arranged on both sides of the vehicle are of the model Steel-mate radar distance sensor.
The utility model provides a laser emitter contains two slant laser lamps at least and just to the laser lamp, and two slant laser lamps launch respectively towards the left front side of vehicle direction of travel and the laser of right front side for remind the driver to notice the transverse distance between vehicle and the both sides. The lateral deviation angle may be a wide range as long as the driver can be made aware of the vehicle deviation direction. The laser lamp is used for emitting laser towards the vehicle running direction to remind a driver of paying attention to the vehicle following distance. The downward irradiation angles of the laser lamps are different according to the height of the vehicle, and the laser lamps are adjusted and installed according to the condition that a driver in the vehicle can see the laser lamps.
The utility model discloses safe distance suggestion method specifically does:
step 1, respectively acquiring the transverse distance between two sides of a vehicle body of a vehicle and structures on two sides of the vehicle and the longitudinal distance between the front end of the vehicle and a front vehicle in real time through a transverse distance sensor and a longitudinal distance sensor; acquiring current air humidity information through a humidity sensor;
and 2, judging whether transverse distance prompt or longitudinal distance prompt is needed, and if so, carrying out corresponding prompt.
Specifically, referring to fig. 2, for the lateral distance cue: judging whether the real-time transverse distance of each side of the vehicle is smaller than a preset transverse safe distance threshold (the value is generally set to be 30cm), if so, starting a laser lamp of the corresponding side to emit red laser to prompt a driver to pay attention to the transverse distance of the corresponding side; the driver adjusts the distance between the vehicle and the road surface close to the side in time according to the prompt; when the distance between the vehicle and the near side of the road is adjusted by a driver, the distance sensors arranged between the two sides of the vehicle can detect the distance between the vehicle and the two sides of the road in real time, and when the distance is adjusted to be larger than the transverse safe distance threshold value, the laser transmitter finishes transmitting laser.
Referring to fig. 3, for the longitudinal distance cue, it is specifically:
(a) determining the current road adhesion coefficient according to the air humidity: establishing a corresponding relation between air humidity and road adhesion coefficient by counting historical data of the same vehicle type, and determining the current road adhesion coefficient according to the corresponding relation;
wherein the historical data is obtained through experimental measurement.
(b) Calculating a required safe braking distance under the current speed, namely a minimum safe following distance, according to the current road attachment coefficient and the safe sight distance model;
specifically, the method comprises the following steps: first, a maximum braking reaction distance S of a vehicle driver is calculated1；
S1＝vt1
Where v is the current speed of the vehicle, t1The brake reaction time of a driver is generally 0.8-2.0 s;
secondly, according to the current road adhesion coefficient, the driving distance S of the vehicle in the braking time is calculated2；
Wherein g is the gravity acceleration, f is the current road adhesion coefficient, and i is the road longitudinal gradient;
and finally, summing the maximum braking reaction distance and the running distance of the vehicle within the braking time to obtain the required safe braking distance at the current vehicle speed.
(c) And judging whether the current real-time longitudinal distance is less than the minimum safe vehicle following distance, if so, starting a laser lamp in front to emit red laser to prompt a driver to pay attention to the vehicle following distance. The driver can adopt proper measures for braking or reducing the throttle valve of the engine according to the laser prompt information right ahead, the current following distance is adjusted, and the driving safety is ensured. By the active prompting method, the scratch between the vehicle and the tunnel side of the road is avoided, the risk of rear-end accidents is reduced, and the transportation safety and the high efficiency of narrow road sections such as tunnel roads, bridge roads and the like are realized.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A safe distance prompting device for vehicles in narrow road sections is characterized by comprising a sensing prompting component arranged on the top of a vehicle, transverse distance sensors arranged on two sides of the vehicle body and a longitudinal distance sensor arranged on a front bumper of the vehicle; the sensing prompt component comprises a laser transmitter, a humidity sensor and a data processing module;
the transverse distance sensor is used for acquiring the transverse distance between two sides of the vehicle body and a roadside structure in real time and transmitting the transverse distance to the data processing module;
the longitudinal distance sensor is used for acquiring the longitudinal distance between the vehicle and the front vehicle in real time and transmitting the longitudinal distance to the data processing module;
the humidity sensor is used for acquiring current air humidity information in real time and transmitting the humidity information to the data processing module;
the data processing module judges whether to carry out transverse safe distance prompt according to the received transverse distance and transmits a judgment result to the laser transmitter; the laser transmitter starts a corresponding oblique laser lamp according to the received instruction to transmit red laser to the oblique front of the vehicle to prompt the driver to pay attention to the transverse distance of the corresponding side;
the data processing module is used for receiving vehicle speed information transmitted by a vehicle CAN bus; judging whether longitudinal safe distance prompt is carried out or not according to the received longitudinal distance, real-time vehicle speed and humidity information, and transmitting a judgment result to a laser transmitter; the laser transmitter starts the corresponding forward laser lamp according to the received instruction to transmit red laser to the front of the vehicle, and prompts a driver to pay attention to the vehicle following distance.
2. The apparatus according to claim 1, wherein the longitudinal distance sensor is a solid-state lidar.
3. The apparatus of claim 1, wherein the lateral distance sensor is a Steel-mate radar distance sensor.
4. The device as claimed in claim 1, wherein the laser emitter, the humidity sensor and the data processing module are disposed in a transparent organic glass housing, the organic glass housing has a side opening at a front end of the vehicle, the humidity sensor has a sensing end extending out of the opening of the organic glass housing, and the laser emitting end of the laser emitter faces the opening of the organic glass housing.
5. The apparatus as claimed in claim 1, wherein the laser transmitter includes two oblique laser lamps for emitting laser light toward the left and right front sides of the traveling direction of the vehicle, respectively, and a forward laser lamp for emitting laser light toward the traveling direction of the vehicle.
6. The device for prompting the safe distance of the vehicle in the narrow road section as claimed in claim 1, wherein the data processing module is an ARM processor, a single chip microcomputer or an industrial personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329509.1U CN211335970U (en) | 2019-12-23 | 2019-12-23 | Safe distance prompting device for vehicles in narrow road section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329509.1U CN211335970U (en) | 2019-12-23 | 2019-12-23 | Safe distance prompting device for vehicles in narrow road section |
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| Publication Number | Publication Date |
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| CN211335970U true CN211335970U (en) | 2020-08-25 |
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| CN201922329509.1U Expired - Fee Related CN211335970U (en) | 2019-12-23 | 2019-12-23 | Safe distance prompting device for vehicles in narrow road section |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301435A (en) * | 2019-12-23 | 2020-06-19 | 长安大学 | Safe distance prompting device and method for vehicles in narrow road section |
| CN112124192A (en) * | 2020-09-01 | 2020-12-25 | 北汽福田汽车股份有限公司 | Prompting device for vehicle braking distance |
-
2019
- 2019-12-23 CN CN201922329509.1U patent/CN211335970U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301435A (en) * | 2019-12-23 | 2020-06-19 | 长安大学 | Safe distance prompting device and method for vehicles in narrow road section |
| CN112124192A (en) * | 2020-09-01 | 2020-12-25 | 北汽福田汽车股份有限公司 | Prompting device for vehicle braking distance |
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Granted publication date: 20200825 |