CN206583927U - A kind of vehicle speed detector device and automobile - Google Patents
A kind of vehicle speed detector device and automobile Download PDFInfo
- Publication number
- CN206583927U CN206583927U CN201720214305.1U CN201720214305U CN206583927U CN 206583927 U CN206583927 U CN 206583927U CN 201720214305 U CN201720214305 U CN 201720214305U CN 206583927 U CN206583927 U CN 206583927U
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- speed
- infrared
- detector device
- infrared signal
- vehicle speed
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Abstract
The utility model provides a kind of vehicle speed detector device and automobile, belongs to technical field of automobile detection.The vehicle speed detector device includes infrared sensor, including for the Infrared Projector towards ground launch infrared signal and for the infrared signal receiver for the reflected signal for receiving infrared signal；Beam analysis device, is connected with the Infrared Projector and the infrared signal receiver respectively；Timer, is connected with the Infrared Projector and the infrared signal receiver respectively；Signal controller, is connected with the Infrared Projector；Speed calculator, is connected with the beam analysis device and timer respectively.The technical solution of the utility model, in Bus- Speed Monitoring, it is to avoid the interference of the extraneous factors such as road conditions and radius of wheel, realize it is real-time, accurately detect speed.
Description
Technical field
The utility model belongs to technical field of automobile detection, more particularly, to a kind of vehicle speed detector device and automobile.
Background technology
Most of current real-time Bus- Speed Monitoring mode of automobile is all by wheel of the bus wheel speed sensors installed above, institute
The number of turns that sensor obtains wheel rotation in the unit interval is stated, is then calculated with radius of wheel, real-time speed, therefore meter is calculated
The speed of calculation is relevant with radius of wheel, if vehicle tire pressure is not enough or will result in radius of wheel change higher than the demarcation tire pressure that dispatches from the factory
Small or change is big, so as to cause the real-time speed calculated to have error.
Utility model content
The purpose of this utility model is to provide a kind of vehicle speed detector device and automobile, so as to solve to detect in the prior art
Real-time speed the problem of have error due to being influenceed by extraneous factor.
To achieve these goals, the utility model provides a kind of vehicle speed detector device, including：
Infrared sensor, the infrared sensor include be used for towards ground launch infrared signal Infrared Projector and
For the infrared signal receiver for the reflected signal for receiving infrared signal；
Beam analysis device, is connected with the Infrared Projector and the infrared signal receiver respectively；
Timer, is connected with the Infrared Projector and the infrared signal receiver respectively；
Signal controller, is connected with the Infrared Projector；
Speed calculator, is connected with the beam analysis device and timer respectively.
Wherein, the speed that the speed calculator includes the first speed calculator, is connected with the first speed calculator
Checker and the second speed calculator being connected with the speed checker.
Wherein, the beam analysis device and the timer are connected with the first speed calculator respectively.
Wherein, the second speed calculator is also connected with instrument.
Wherein, the speed checker is also connected with power system controller.
Wherein, the infrared sensor and the beam analysis device are all on the chassis of vehicle.
The utility model additionally provides a kind of automobile, including vehicle speed detector device as described above.
Above-mentioned technical proposal of the present utility model at least has the advantages that：
Above-mentioned technical proposal of the present utility model, by the way that beam analysis device and timer is red with infrared sensor respectively
External signal receiver and Infrared Projector connection, the parameter for the infrared signal launched and received is exported to connected
Speed calculator, it is achieved thereby that the real-time detection to speed so that solve prior art by during wheel speed calculation speed by
The error caused by the interference of the external factor such as road conditions and automotive hub radius, realizes the purpose of precise real-time detection speed.
Brief description of the drawings
Fig. 1 is the first connection diagram of vehicle speed detector device of the present utility model；
Fig. 2 is the second connection diagram of vehicle speed detector device of the present utility model；
Fig. 3 is that transmission route when the first infrared signal of the present utility model is 90 degree relative to the angle in speed direction shows
It is intended to.
Description of reference numerals：
1- infrared sensors, 11- Infrared Projectors, 12- infrared signal receivers, 2- beam analysis devices, 3- timing
Device, 4- signal controllers, 5- speed calculators, 51- the first speed calculators, 52- speed checkers, the speeds of 53- second are calculated
Device, 6- instrument, 7- power system controllers.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
As shown in figure 1, an embodiment of the present utility model provides a kind of vehicle speed detector device, including：
Infrared sensor 1, the infrared sensor includes being used for the Infrared Projector towards ground launch infrared signal
11 and for the infrared signal receiver 12 for the reflected signal for receiving infrared signal；
Beam analysis device 2, is connected with the Infrared Projector 11 and the infrared signal receiver 12 respectively；It is described
Beam analysis device 2 includes the reflective mirror of a photographic plate and an adjustable angle, wherein, be fixed with the photographic plate by
The photo resistance arranged according to matrix-style.The first infrared signal that the reflective mirror launches the Infrared Projector 11 or
Second infrared signal of first infrared signal through ground return that infrared signal receiver 12 is received is injected into described photosensitive
On plate, the coordinate points of infrared signal are shown according to the photo resistance on the photographic plate, so as to calculate the first infrared signal
Or second infrared signal relative to speed direction angle.
Timer 3, is connected with the Infrared Projector 11 and the infrared signal receiver 12 respectively；
Signal controller 4, is connected with the Infrared Projector 11；
Speed calculator 5, is connected with the beam analysis device 2 and timer 3 respectively.
As shown in Fig. 2 the speed calculator 5 includes the first speed calculator 51 and the first speed calculator 51
The speed checker 52 of connection and the second speed calculator 53 being connected with the speed checker 52.
Wherein, the beam analysis device 2 and the timer 3 are connected with the first speed calculator 51 respectively.
Wherein, the second speed calculator 53 is also connected with instrument 6.
Wherein, the speed checker 52 is also connected with power system controller 7.
Wherein, the infrared sensor 1 and the beam analysis device 2 are all on the chassis of vehicle.
Above-mentioned vehicle speed detector device of the present utility model, specifically carry out Bus- Speed Monitoring when, the signal controller 4 with
To the Infrared Projector 11 on vehicle chassis control signal is sent every the time of the first preset duration, made described
Infrared Projector 11 launches the first infrared signal, meanwhile, the Infrared Projector 11 sends a signal to the meter
When device 3, the timer 3 is started timing；The beam analysis device 2 gathers first infrared signal, and calculates described
Angle, θ of first infrared signal relative to speed direction1, and the angle, θ by the first infrared signal relative to speed direction1Output
To the first speed calculator 51.
First infrared signal forms the second infrared signal after ground return, wherein, second infrared signal is
The first beam infrared signal that first infrared signal is formed after ground return, the infrared signal receiver 12 receives described
Second infrared signal, while the infrared signal receiver 12 sends a signal to the timer 3, stops the timer 3
Only timing, and the time of record is exported to the first speed calculator 51；It is red that the beam analysis device 2 gathers described second
External signal, and calculate angle, θ of second infrared signal relative to speed direction2, then by the second infrared signal relative to
The angle, θ in speed direction2Export to the first speed calculator 51.
The first speed calculator 51 is according to angle, θ of first infrared signal relative to speed direction received1,
Angle, θ of two infrared signals relative to speed direction2, infrared signal transmission speed and time and formulaThe real-time speed of vehicle is calculated, wherein, the C in the formula is the Infrared Transmission light velocity
Constant.
The first speed calculator 51 exports the real-time speed calculated to the speed checker 52, the car
Fast checker 52 obtains the current driving parameter of the power system controller 7, is obtained according to the speed checklist prestored
The theoretical speed corresponding with current driving parameter, and the real-time speed is matched with the theoretical speed, when both
During matching, the speed checker 52 exports the real-time speed to the second speed calculator 53, wherein, the speed
The corresponding relation of multiple power output parameters and corresponding theoretical speed is stored in checklist.
Described second is finished and is output to when speed checker 52 verifies multiple real-time speeds in the second preset duration
After speed calculator 53, the second speed calculator 53 calculates the average value of multiple real-time speeds, and the average value is
For the current detection speed of the vehicle, and the detection speed is exported to instrument 6, wherein, second preset duration is big
In first preset duration.
Wherein, the formulaDeduction process be：
The transmission range for presetting first infrared signal is L1, the angle relative to speed direction is θ1；Second infrared letter
Number transmission range be L2, the angle relative to speed direction is θ1；Vehicle travelled in the time T of infrared signal transmission away from
From for S, then：
L1+L2=C × T；
S=L1×cosθ1+L2×cos(π-θ2)；
By the corner relation of triangle, it is known that：
L1×sinθ1=L2×sinθ2；
Therefore,
Sine and cosine transformational relation in mathematical formulae, can finally draw：
Further, as shown in figure 3, first infrared signal relative to speed direction angle, θ1For 90 degree when, institute
State θ2Close to and slightly larger than 90 degree；Therefore θ2- pi/2 is smaller, according to Taylor's formula, and when θ is smaller, sin θ is approximately equal to θ, and cos θ are about
Equal to 1, therefore, work as θ1For 90 degree when, the calculation of the real-time speed is V=C × (θ2-π/2)/2。
Another embodiment of the present utility model provides a kind of automobile, including vehicle speed detector device as described above.
It is corresponding due to the vehicle speed detector device of the utility model embodiment, applied on automobile, therefore, the utility model
Embodiment additionally provide a kind of automobile, wherein, above-mentioned vehicle speed detector device it is described realize embodiment be applied to the automobile
Embodiment in, can also reach identical technique effect.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
Protection domain of the present utility model is also should be regarded as with retouching.
Claims (7)
1. a kind of vehicle speed detector device, applied to vehicle, it is characterised in that the vehicle speed detector device includes：
Infrared sensor (1), including for the Infrared Projector (11) towards ground launch infrared signal and red for receiving
The infrared signal receiver (12) of the reflected signal of external signal；
Beam analysis device (2), is connected with the Infrared Projector (11) and the infrared signal receiver (12) respectively；
Timer (3), is connected with the Infrared Projector (11) and the infrared signal receiver (12) respectively；
Signal controller (4), is connected with the Infrared Projector (11)；
Speed calculator (5), is connected with the beam analysis device (2) and timer (3) respectively.
2. vehicle speed detector device according to claim 1, it is characterised in that the speed calculator (5) includes the first car
Fast calculator (51), the speed checker (52) being connected with the first speed calculator (51) and with the speed checker
(52) the second speed calculator (53) of connection.
3. vehicle speed detector device according to claim 2, it is characterised in that the beam analysis device (2) and the timing
Device (3) is connected with the first speed calculator (51) respectively.
4. vehicle speed detector device according to claim 2, it is characterised in that the second speed calculator (53) is gone back and instrument
Table (6) is connected.
5. vehicle speed detector device according to claim 2, it is characterised in that the speed checker (52) is gone back and dynamical system
Controller (7) of uniting is connected.
6. vehicle speed detector device according to claim 1, it is characterised in that the infrared sensor (1) and the light beam
Analyzer (2) is all on the chassis of vehicle.
7. a kind of automobile, it is characterised in that including the vehicle speed detector device as described in claim any one of 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214305.1U CN206583927U (en) | 2017-03-07 | 2017-03-07 | A kind of vehicle speed detector device and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214305.1U CN206583927U (en) | 2017-03-07 | 2017-03-07 | A kind of vehicle speed detector device and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583927U true CN206583927U (en) | 2017-10-24 |
Family
ID=60112926
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214305.1U Expired - Fee Related CN206583927U (en) | 2017-03-07 | 2017-03-07 | A kind of vehicle speed detector device and automobile |
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| CN (1) | CN206583927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535510A (en) * | 2018-05-29 | 2018-09-14 | 安徽大明汽车零部件有限公司 | A kind of wheel hub monitoring rotating speed |
-
2017
- 2017-03-07 CN CN201720214305.1U patent/CN206583927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535510A (en) * | 2018-05-29 | 2018-09-14 | 安徽大明汽车零部件有限公司 | A kind of wheel hub monitoring rotating speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200806 Address after: 101300 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Patentee after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Renhe Town, Beijing, Shunyi District Patentee before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |