CN203172529U - Abnormal running state identification device for commercial vehicle - Google Patents
Abnormal running state identification device for commercial vehicle Download PDFInfo
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- CN203172529U CN203172529U CN 201320207167 CN201320207167U CN203172529U CN 203172529 U CN203172529 U CN 203172529U CN 201320207167 CN201320207167 CN 201320207167 CN 201320207167 U CN201320207167 U CN 201320207167U CN 203172529 U CN203172529 U CN 203172529U
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- running state
- micro controller
- controller system
- vision sensor
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Abstract
The utility model relates to vehicle safety driving technology, and discloses an abnormal running state identification device for a commercial vehicle. The abnormal running state identification device for the commercial vehicle comprises a single chip microcomputer, a liquid crystal display screen, a data acquisition unit, a microwave radar and a vision sensor, the data acquisition unit is connected with a vehicle bus, the microwave radar is used for measuring the relative distance between the vehicle and a front vehicle, the vision sensor is used for measuring the distance between each vehicle tire and a lane line, corresponding input ends of the single chip microcomputer are connected with the microwave radar, the vision sensor and an output end of the data acquisition unit respectively, and an output end of the single chip microcomputer is connected with the liquid crystal display screen. The abnormal running state identification device can automatically acquire operation behavior deviation of a driver and running state deviation of the vehicle, the driver is timely reminded when the vehicle is in the abnormal running state, and the dangerous running state of the vehicle is avoided, so that running safety of the vehicle is ensured.
Description
Technical field
The utility model relates to the vehicle safe driving technology, particularly a kind of commerial vehicle abnormal operating condition device for identifying.
Background technology
Many traffic accidents all can take place and cause personal casualty and a large amount of property damagees in each year, especially long-distance operating passenger car, sail distance at high speed uplink, what have reaches more than 1000 kilometers even 2000 kilometers, travel continuously for a long time and the tired attention collected state deterioration of travelling and to cause chaufeur, chaufeur to a certain extent decline also will occur to the perception of road traffic environment with to the operator perforniance of vehicle, thereby make that the safety in operation of operating passenger car can't farthest be ensured.Operation characteristic at operating passenger car, the part technical personnel has proposed various operating passenger car safety monitoring systems, the fatigue monitoring system when for example chaufeur is driven over a long distance, operating passenger car rear-end impact forewarn system, the dangerous running state Integrated Early Warning System of operating passenger car typical case etc.
The motoring condition of vehicle is divided into normal motoring condition, unusual motoring condition and dangerous motoring condition, the field of application of above-mentioned this type systematic is that commerial vehicle has been in dangerous motoring condition, at this moment steerman is carried out early warning and can point out chaufeur to take measures to avoid dangerous further deterioration, thereby avoid the generation of accident.Say that from practical application the appearance of precarious position has meaned the accident risk that existence is bigger, although this class safety pre-warning system can be avoided the accident of a part, can not avoid the appearance of the dangerous motoring condition of operating passenger car fully.The utility model is unusual motoring condition at operating passenger car by the state evolution that normally travels, and chaufeur is just taked the improvement measure, stops to make unusual motoring condition will change dangerous motoring condition into, thereby avoids causing bigger car accident.
Summary of the invention
The purpose of this utility model is to provide a kind of commerial vehicle abnormal operating condition device for identifying, automatically gather driver's operation behavior deviation and travel condition of vehicle deviation, when being in unusual motoring condition, vehicle points out timely, avoid vehicle to enter dangerous motoring condition, thereby guarantee the driving safety of vehicle.
For achieving the above object, the utility model is achieved by the following technical solutions.
A kind of commerial vehicle abnormal operating condition device for identifying, it is characterized in that, comprise micro controller system, LCDs, the data trap that is connected with the vehicle bus, be used for measuring the microwave radar of vehicle and front vehicles relative distance, be used for measuring the vision sensor of vehicle tire and lane mark distance; The corresponding I/O input end of described micro controller system connects the mouth of described microwave radar, vision sensor and data trap respectively, and the I/O mouth of described micro controller system connects described LCDs.
Characteristics of the present utility model and further the improvement are:
Described micro controller system is MC9S12XS256 type micro controller system.
Described vision sensor is located on the front windshield of vehicle.
Described data trap is the collector of CAN2.0A agreement.
Described LCDs is 12864 LCDs.
Commerial vehicle abnormal operating condition device for identifying of the present utility model, before vehicle enters precarious position, can recognize vehicle in advance and whether be in error state, when being in error state, vehicle by LCDs chaufeur is pointed out, be suppressed at bud thereby street accidents risks will take place, improve the safety that vehicle travels.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is the framework scheme drawing of commerial vehicle abnormal operating condition device for identifying of the present utility model.
The specific embodiment
With reference to Fig. 1, Fig. 1 is the framework scheme drawing of commerial vehicle abnormal operating condition device for identifying of the present utility model.The utility model comprises micro controller system, LCDs, and the data trap that is connected with the vehicle bus for the microwave radar of measuring vehicle and front vehicles relative distance, is used for measuring the vision sensor of vehicle tire and lane mark distance; The corresponding I/O input end of micro controller system connects the mouth of microwave radar, vision sensor and data trap respectively, and the I/O mouth of micro controller system connects LCDs.
Micro controller system adopts MC9S12XS256 type micro controller system, and micro controller system is installed on inside, the vehicle instrument side of renting; Vision sensor is located on the front windshield of vehicle, is used for measuring vehicle left tire and the distance of left-hand lane line and the distance of right tire and right-hand lane line; Data trap is the collector of CAN2.0A agreement, be installed on the meter panel of motor vehicle lower inner, gather vehicle speed signal in the vehicle operational process, steering wheel angle signal, bearing circle rotational angular velocity signal, acceleration pedal aperture signal, vehicle body yaw velocity signal, vehicle body transverse acceleration signal etc. in real time; LCDs is 12864 LCDs, and this small LCD Liquid Crystal Display (LCD) is installed on the gauge panel annex of vehicle, is used for chaufeur is pointed out.
The discrimination method of vehicle abnormality running state device for identifying of the present utility model may further comprise the steps:
(1) running velocity analysis: self speed of a motor vehicle input micro controller system that data trap is collected, micro controller system is divided into a plurality of speed intervals with the speed of a motor vehicle with 10km/h to be added up, with the speed of a motor vehicle and under it speed of a motor vehicle aviation value in speed interval compare, the absolute value of the speed of a motor vehicle aviation value difference in the speed of a motor vehicle and this speed interval is during greater than 4km/h, the speed of a motor vehicle of assert this moment is unusual, probably be that reasons such as the dispersion attention of chaufeur or fatigue driving cause, otherwise regard as normal.
(2) vehicle and lane mark distance analysis: vision sensor is collected the left and right sides tire of vehicle and the image of left and right sides lane mark is input to micro controller system, micro controller system is divided into the distance between tire and lane mark between a plurality of distance regions with 10cm to be added up, with the distance between tire and lane mark and under it aviation value between distance regions compare, when the absolute value of interior aviation value difference is greater than 5cm between the distance between tire and lane mark and this distance regions, assert that the distance between vehicle and lane mark is unusual, probably being chaufeur error occurred to the distance perspective of vehicle and lane mark, otherwise regards as normal.For the distance of vehicle left tire and left-hand lane line and the distance of the right tire of vehicle and right-hand lane line, as long as the distance that one of them result who recognizes for unusual, then regards as between vehicle and lane mark is unusual.
(3) vehicle follow gallop behavioural analysis: the speed of a motor vehicle input micro controller system of the vehicle that the vehicle that microwave radar is tested and the distance between front truck and data trap collect, micro controller system calculates the time headway of vehicle and adds up apart from the interval to be divided in 0.5 second when a plurality of, aviation value in the time of with time headway and under it in interval compares, the absolute value of the aviation value difference when time headway and this in interval is during greater than 0.2 second, assert the vehicle follow gallop abnormal behavior, may be the dispersion attention situation to occur owing to chaufeur is subjected to other factors interference, otherwise regard as normal.
(4) chaufeur is analyzed the acceleration pedal operation behavior: the acceleration pedal aperture parameter that data trap collects is imported micro controller system, micro controller system calculates the aperture rate of change of acceleration pedal and is divided into a plurality of rate of changes interval with 5% and adds up, the aperture rate of change of acceleration pedal=(this acceleration pedal opening value-last time acceleration pedal opening value)/last time acceleration pedal opening value, will speed up the aperture rate of change of pedal and the aviation value in its affiliated rate of change interval compares, the absolute value of the aviation value difference in the aperture rate of change of acceleration pedal and this rate of change interval was greater than 3% o'clock, assert that chaufeur is unusual to the operation behavior of acceleration pedal, show that this moment, chaufeur certain deviation occurred to the operation behavior of acceleration pedal and the normal driving behavior of chaufeur, otherwise regard as normal.
(5) steering wheel for vehicle rotates and analyzes: the bearing circle rotational angular velocity that data trap is collected is input to micro controller system, micro controller system is divided into a plurality of cireular frequencys interval with the bearing circle rotational angular velocity with 10 °/s to be added up, and with the bearing circle rotational angular velocity and under it mean angular velocity in cireular frequency interval compare, the absolute value of the mean angular velocity difference in bearing circle rotational angular velocity and this cireular frequency interval is during greater than 5 °/s, assert that the steering wheel for vehicle rotational angular velocity is unusual, there is certain deviation to the operation behavior of bearing circle in expression chaufeur this moment with normal operation behavior, otherwise regards as normal.
(6) the automobile body yaw is analyzed: self vehicle body yaw velocity that data trap is collected and current self speed of a motor vehicle input micro controller system, micro controller system counts out the yaw speed of vehicle and is divided into a plurality of yaw speed interval with 15 (° km)/(sh) and adds up, the yaw speed of the vehicle=vehicle body yaw velocity * speed of a motor vehicle, aviation value in yaw speed and the yaw speed interval under it is compared, the absolute value of the aviation value difference in yaw speed and this yaw speed interval is during greater than 9 (° km)/(sh), assert that the vehicle body yaw is unusual, there is some difference to show the yaw characteristic of vehicle this moment and the yaw characteristic in the normal driving process, otherwise regard as normal.
(7) the automobile body transverse acceleration is analyzed: self transverse acceleration that data trap is collected is input to micro controller system, micro controller system with transverse acceleration with 1m/s
2Be divided into a plurality of transverse accelerations interval and add up, with transverse acceleration and under it aviation value in transverse acceleration interval compare, the absolute value of the aviation value difference in transverse acceleration and this transverse acceleration interval is greater than 0.4m/s
2The time, assert that the vehicle body transverse acceleration is unusual, there is some difference to show the transverse acceleration of vehicle this moment and the transverse acceleration data in the normal driving process, otherwise regard as normal.
(8) vehicle abnormality running state identification: or more than one result are arranged for unusual in above-mentioned steps (1)-step (3), and one or more than one result are arranged for unusual in step (4)-step (7), assert that then the travel condition of vehicle identification result is for unusual; Three or three above results are arranged for unusual in above-mentioned steps (1)-step (7), assert that then the travel condition of vehicle identification result is for unusual.Under all the other states, assert that the travel condition of vehicle identification result is normal.
(9) vehicle abnormality operation prompting: when the travel condition of vehicle identification result was unusual, the Single-chip Controlling LCDs carried out unusual condition and shows, the prompting chaufeur is attentively driven or stopped and has a rest.
Commerial vehicle abnormal operating condition device for identifying of the present utility model, before vehicle enters precarious position, can recognize vehicle in advance and whether be in error state, cause reason that vehicle is in error state comprise multiple, for example fatigue driving, take a risk driving, dispersion attention etc.; When being in error state, vehicle by LCDs demonstration " please attentively driving or the rest of stopping " chaufeur is pointed out, and concrete display abnormality result items, remind chaufeur to take certain measure to make vehicle be in normal motoring condition, thereby street accidents risks will take place be suppressed at bud, to avoid vehicle to enter precarious position, even situations such as deviation, rear-end impact, rollover appear, and improve the safety that vehicle travels, be particularly useful for operating passenger car.
Although below by reference to the accompanying drawings embodiment of the present utility model is described, the utility model is not limited to above-mentioned specific embodiments, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that the utility model claim protects, can also make a variety of forms under the enlightenment of this specification sheets, these all belong to the row of the utility model protection.
Claims (5)
1. commerial vehicle abnormal operating condition device for identifying, it is characterized in that, comprise micro controller system, LCDs, the data trap that is connected with the vehicle bus, be used for measuring the microwave radar of vehicle and front vehicles relative distance, be used for measuring the vision sensor of vehicle tire and lane mark distance; The corresponding I/O input end of described micro controller system connects the mouth of described microwave radar, vision sensor and data trap respectively, and the I/O mouth of described micro controller system connects described LCDs.
2. commerial vehicle abnormal operating condition device for identifying according to claim 1 is characterized in that, described micro controller system is MC9S12XS256 type micro controller system.
3. commerial vehicle abnormal operating condition device for identifying according to claim 1 is characterized in that described vision sensor is located on the front windshield of vehicle.
4. commerial vehicle abnormal operating condition device for identifying according to claim 1 is characterized in that, described data trap is the collector of CAN2.0A agreement.
5. commerial vehicle abnormal operating condition device for identifying according to claim 1 is characterized in that, described LCDs is 12864 LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207167 CN203172529U (en) | 2013-04-22 | 2013-04-22 | Abnormal running state identification device for commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207167 CN203172529U (en) | 2013-04-22 | 2013-04-22 | Abnormal running state identification device for commercial vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN203172529U true CN203172529U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320207167 Expired - Fee Related CN203172529U (en) | 2013-04-22 | 2013-04-22 | Abnormal running state identification device for commercial vehicle |
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| CN (1) | CN203172529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223901A (en) * | 2013-04-22 | 2013-07-31 | 长安大学 | Device and method for identifying abnormal running state of commercial vehicle |
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2013
- 2013-04-22 CN CN 201320207167 patent/CN203172529U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223901A (en) * | 2013-04-22 | 2013-07-31 | 长安大学 | Device and method for identifying abnormal running state of commercial vehicle |
| CN103223901B (en) * | 2013-04-22 | 2015-07-08 | 长安大学 | Device and method for identifying abnormal running state of commercial vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160422 |