CN206788362U - A kind of measuring system of the front driving spacing of measurement in real time and speed - Google Patents
A kind of measuring system of the front driving spacing of measurement in real time and speed Download PDFInfo
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- CN206788362U CN206788362U CN201621205992.2U CN201621205992U CN206788362U CN 206788362 U CN206788362 U CN 206788362U CN 201621205992 U CN201621205992 U CN 201621205992U CN 206788362 U CN206788362 U CN 206788362U
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- speed
- ultrasonic sensor
- measurement
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- real time
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
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Abstract
The utility model discloses a kind of front driving spacing of measurement in real time and the measuring system of speed, including measurement module, processing module, measurement module to be made up of the first ultrasonic sensor, the second ultrasonic sensor and Hall sensor；Processing module is made up of input module and controller, the reminding module being made up of display and voice system is may also include, the first described ultrasonic sensor, the second ultrasonic sensor, Hall sensor, input module, display and voice system are connected with controller respectively.The utility model can measure mutual distance and front road speed in real time in the state of Ben Che and front truck are moved, and driver is prompted, so as to which traffic safety be effectively ensured.
Description
Technical field
Measuring vehicle speed and ranging field are the utility model is related to, more particularly, to a kind of front driving of measurement in real time car
Away from the measuring system with speed.
Background technology
A large amount of traffic accident statistical analysis, rear-ended car accident account for traffic accident sum significant proportion.Automobile is caused to chase after
Tail main cause is that distance keeps inadequate between two cars.To ensure driving safety, it is necessary to measure front driving spacing and speed, and
Prompted driver.Measuring car away from method have radar range finding, laser ranging and video ranging.Radar range finding, Laser Distance Measuring Equipment
Your cost is high.Video ranging is influenceed by illumination and shooting angle and driving environment, and algorithm is complicated.Traditional ultrasonic sensor
Ranging, only consider that both sides' inactive state or a side are mobile status, and must know in advance that front driving speed, in actual conditions
Under be impossible.
The system be both sides all under mobile status, measure mutual distance and front road speed in real time, and driver is added
With prompting, so as to which traffic safety be effectively ensured.
Utility model content
Technical problem to be solved in the utility model is to provide the survey of a kind of front driving spacing of measurement in real time and speed
Amount system.The utility model can measure mutual distance and front driving speed in real time in the state of Ben Che and front truck are moved
Degree, and driver is prompted.
In order to solve the above technical problems, the technical solution adopted in the utility model is, a kind of front driving of measurement in real time car
Away from the measuring system with speed, including measurement module, processing module.Measurement module the first is surpassed by measurement front speed and distance
Sonic sensor, the second ultrasonic sensor and Hall sensor composition；Processing module by input data input module and
The controller composition of processing data, the first described ultrasonic sensor, the second ultrasonic sensor, Hall sensor and defeated
Enter module to be connected with controller respectively；Speed of the Hall sensor for measuring this car, first ultrasonic sensor,
Second ultrasonic sensor is used to receiving the signal of back wave, and the controller calculates according to the signal of back wave, this car speed
Draw front truck speed and two car spacings.
Preferably, first ultrasonic sensor is arranged on different longitudinal positions of automobile from the second ultrasonic sensor
Put, using the direction of car traveling as longitudinal orientation.
Preferably, the input module includes peripheral hardware keypad, for inputting the first ultrasonic sensor and the second ultrasound
The fore-and-aft distance of wave sensor installation.
Preferably, the system also includes reminding module, and reminding module is by showing this car speed, front truck speed, two spacings
From display and after secure threshold carry out voice message voice system composition；Display and voice system respectively with control
Device connection processed.
Preferably, described controller computing draws front truck travel speed vfrontWith two car spacing s, solved by equation group：
(vch-vfront)*T1*(vch+v0)/(2*vch)=s (9)
(vch-vfront)*T2*(vch+v0)/(2*vch)=s+x0 (10)
Wherein, v0For this car travel speed, vchFor ultrasonic velocity, T1And T2Respectively the first ultrasonic sensor and
Two ultrasonic sensors receive the time of back wave.
Compared with prior art, the beneficial effects of the utility model are：The utility model uses ultrasonic sensor, can be with
In the state of Ben Che and front truck are all mobile, mutual distance and front road speed are measured in real time, and driver is prompted.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following specific implementations and accompanying drawing.
Fig. 1 is that structure of the present utility model is intended to.
Fig. 2 is flow chart of the present utility model
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.Being given for example only property of position relationship described in accompanying drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in figure 1, in the present embodiment, the measuring system of a kind of front driving spacing of measurement in real time and speed, including survey
Module, processing module and reminding module are measured, measurement module is by ultrasonic sensor 1, ultrasonic sensor 2 and Hall sensor
Composition；Processing module is made up of keypad and controller；Reminding module is made up of light-emitting diode display and voice system, and described is super
Sonic sensor 1, ultrasonic sensor 2, Hall sensor, keypad, light-emitting diode display and voice system respectively with controller
Connection.
As shown in Fig. 2 operation principle of the present utility model is：Driving spacing and speed carries in front of described real-time measurement
Show system, after the startup of this car, fore-and-aft distance when inputting ultrasonic sensor 1 and the installation of ultrasonic sensor 2 with keypad
x0；Hall sensor meeting automatic start, survey the travel speed v of this car0, light-emitting diode display display current vehicle speed；Supersonic sensing
Device 1, ultrasonic sensor 2 start simultaneously, send ultrasonic wave and receive the ultrasonic wave that front truck reflects, the timer of controller
Record ultrasonic sensor 1 and ultrasonic sensor 2 receive the time T of back wave1And T2；Data above is carried out by controller
Reason, the computing of controller are：
It is t that if the ultrasonic wave that ultrasonic sensor 1 is sent, which runs into the time used when front driving to be measured is reflected,1, from quilt
It is t that front driving to be measured, which reflexes to and receives the time used by ultrasonic sensor 1 again,2, then
(vch-vfront)*t1=s, (1)
(vch-v0)*t1/(vch+v0)=t2, (2)
t1+t2=T1 (3)
(2), (3) formula can solve more than：t1=T1*(vch+v0)/(2*vch), (4)；
If the ultrasonic wave that ultrasonic sensor 2 is sent runs into the time used when front driving to be measured is reflected and isFrom quilt
Front driving to be measured, which reflexes to, to be received the time used by ultrasonic sensor 2 again and isThen
(6), (7) formula can solve more than：
By more than (1), (4), (5), (8) formula to equation group and solve front truck travel speed vfrontWith two car spacing s：
(vch-vfront)*T1*(vch+v0)/(2*vch)=s (9)
(vch-vfront)*T2*(vch+v0)/(2*vch)=s+x0 (10)
Wherein, vchFor ultrasonic velocity；
Result of calculation real-time display on light-emitting diode display comes out；When the data that controller judges to calculate exceed safety
During threshold value, voice system carries out voice message.
Obviously, above-described embodiment of the present utility model is used for the purpose of clearly demonstrating the invention example,
And it is not the restriction to the embodiment of the invention.For those of ordinary skill in the field, stated upper
It can also be made other changes in different forms on the basis of bright.There is no need and unable to give all embodiments
With exhaustion.All all any modification, equivalent and improvement made within the spirit and principle of the invention etc., all should be included
Within the protection domain of the utility model claims.
Claims (4)
1. the measuring system of a kind of front driving spacing of measurement in real time and speed, including measurement module, processing module, its feature exist
In measurement module is passed by the first ultrasonic sensor, the second ultrasonic sensor and the Hall of measurement front speed and distance
Sensor forms；Processing module is by the input module of input data and the control of processing data
Device forms, the first described ultrasonic sensor, the second ultrasonic sensor, Hall sensor and input module difference
It is connected with controller；The Hall sensor is used for the speed for measuring this car, first ultrasonic sensor, the second ultrasonic wave
Sensor is used to receiving the signal of back wave, and front truck car is calculated according to the signal of back wave, this car speed in the controller
Speed and two car spacings.
2. the measuring system of the front driving spacing of measurement in real time according to claim 1 and speed, it is characterised in that described
First ultrasonic sensor and the second ultrasonic sensor are arranged on the different longitudinal position of automobile.
3. the measuring system of the front driving spacing of measurement in real time according to claim 2 and speed, it is characterised in that described
Input module includes peripheral hardware keypad.
4. the measuring system of the front driving spacing of measurement in real time according to claim 3 and speed, it is characterised in that described
System also includes reminding module, and reminding module is by showing this car speed, front truck speed, the display of two car distances and beyond safety
The voice system composition of voice message is carried out after threshold value；Display is connected with controller respectively with voice system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205992.2U CN206788362U (en) | 2016-11-08 | 2016-11-08 | A kind of measuring system of the front driving spacing of measurement in real time and speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205992.2U CN206788362U (en) | 2016-11-08 | 2016-11-08 | A kind of measuring system of the front driving spacing of measurement in real time and speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206788362U true CN206788362U (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621205992.2U Expired - Fee Related CN206788362U (en) | 2016-11-08 | 2016-11-08 | A kind of measuring system of the front driving spacing of measurement in real time and speed |
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| CN (1) | CN206788362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324604A (en) * | 2016-11-08 | 2017-01-11 | 岭南师范学院 | System and method for measuring distance and speed of vehicles ahead in real time |
-
2016
- 2016-11-08 CN CN201621205992.2U patent/CN206788362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324604A (en) * | 2016-11-08 | 2017-01-11 | 岭南师范学院 | System and method for measuring distance and speed of vehicles ahead in real time |
| CN106324604B (en) * | 2016-11-08 | 2019-06-14 | 岭南师范学院 | A kind of measuring system and method for the driving of real-time measurement front spacing and speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171222 Termination date: 20201108 |