CN205810137U - A kind of spacing anti-collision prewarning apparatus based on car networking - Google Patents
A kind of spacing anti-collision prewarning apparatus based on car networking Download PDFInfo
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- CN205810137U CN205810137U CN201620710356.9U CN201620710356U CN205810137U CN 205810137 U CN205810137 U CN 205810137U CN 201620710356 U CN201620710356 U CN 201620710356U CN 205810137 U CN205810137 U CN 205810137U
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Abstract
The utility model discloses a kind of spacing anti-collision prewarning apparatus based on car networking, this device includes information acquisition unit, alarm unit, data processing unit and power-supply circuit；It is provided by beam antenna, obtains the distance between Current vehicle distance above nearest vehicle, and send and receive vehicle acceleration, speed and directional information by wireless receiving and dispatching terminal；Whole apparatus structure is simple, has incorporated beam antenna cleverly, has defined range of readings so that the data transmission between vehicle is precisely, quickly；Carry out safe distance between vehicles judgement by data processing unit according to vehicle heading, if the distance judged between Current vehicle and distance above nearest vehicle is less than the minimum safe spacing between two cars, triggers alarm unit and send alarm signal.Beam antenna radio receiving terminal, the installation site of combining wireless launch terminal are installed in employing additional so that find range more accurate.It is prevented effectively from the shortcoming that existing anti-collision prewarning apparatus is affected by the external environment.
Description
Technical field
This utility model belongs to field of automobile control, relates to a kind of spacing anti-collision prewarning apparatus based on car networking.
Background technology
Now, China's automobile pollution presents a rapidly rising trend, and the thing followed is traffic congestion, and vehicle accident takes place frequently.
By installing spacing early warning system to vehicle, make to keep between car and car safe distance, be effectively reduced vehicle accident.
Flourish along with transportation cause, car networking technology will be widely used in field of traffic.
Existing spacing anti-collision early warning system uses the distance measuring methods such as camera system, ultrasound wave, laser, infrared ray mostly,
And these distance measuring methods are easily subject to the impact of external environment, such as camera system easily by illumination effect, laser ranging requires optics
System keeps clean, and infrared distance measurement precision is low, and ultrasonic ranging is limited by distance.Such as patent documentation Application No.
The patent " spacing detection alarm " of " 201410805797.2 " uses laser range sensor.
Spacing early warning system based on the car networking then modes using the satellite navigations such as GPS are found range more, but between high building, tunnel
Gps signal is poor in road or in the rainy day, can cause bigger error.Such as patent documentation Application No. " 201310090625.7 "
Patent " a kind of vehicle safe driving method for early warning based on car networking " uses GPS to position mode.
The patent of patent documentation Application No. " 201510176209.8 " proposes a kind of car based on wireless transmit terminal
Away from method for early warning, but the fixed base stations that the method uses road other positions, and has implemented considerable restraint.
Therefore, it is necessary to utility model is a kind of is difficult to the simple and practical anti-collision prewarning apparatus that is affected by the external environment.
Utility model content
The utility model proposes a kind of spacing anti-collision prewarning apparatus based on car networking, its object is to overcome existing skill
When in art, current vehicle runs into emergency brake, rear car cannot realize the problem that automatic early-warning controls by automatic sensing.
A kind of spacing anti-collision prewarning apparatus based on car networking, processes single including information acquisition unit, alarm unit, data
Unit and power-supply circuit；
Described information acquisition unit is all connected with described data processing unit with alarm unit, described power-supply circuit with
Described data processing unit is connected；
Described information acquisition unit includes wireless receiving and dispatching terminal, acceleration transducer, velocity sensor and electronic compass；
Be provided with beam antenna in described wireless receiving and dispatching terminal, obtain Current vehicle distance above recently between vehicle away from
From, and send and receive vehicle acceleration, speed and directional information by wireless receiving and dispatching terminal；
Described vehicle acceleration is obtained by acceleration transducer, and described speed is obtained by velocity sensor, described vehicle side
Obtain to by electronic compass；
Described data processing unit carries out safe distance between vehicles judgement, if judging Current vehicle and distance according to vehicle heading
Above the distance between nearest vehicle is less than the minimum safe spacing between two cars, triggers alarm unit and sends alarm signal.
Also include the interactive unit being connected with data processing unit.
Described alarm unit is acousto-optic warning unit.
Minimum safe spacing between described two cars is pre-stored within data processing unit, calculates according to existing method and obtains
?；
If radio receiving terminal t interval time reads a spacing information, in time t, Current vehicle operating range is
L1, front truck operating range is L2；
The two initial spacings of car are S1, after elapsed time t, two car spacings are S2, two car spacing S1, S2All Current vehicle record；a1
And v1It is respectively acceleration and speed, a of Current vehicle2And v2It is respectively acceleration and the speed of front truck, wherein, a1And v1By working as
Vehicle in front information acquisition unit obtains in real time, L1Obtained by distance travelled meter onboard, a2、v2And L2Obtained by formula below
Arrive:
(1) if L2=L1+S2-S1> 0, then two cars are to travel in the same direction:
Now front truck speed: v2=L2/ t, front truck acceleration: a2=(v2-v0)/t, wherein v0For a time interval on front truck
Speed measured by t, when measuring first, makes v0=v2；
(2) if L2=L1+S2-S1< 0, then two cars are backward going:
Now L2=S1-L1-S2, front truck speed v2=L2/ t, front truck acceleration: a2=(v2-v0)/t, wherein v0For front truck
Speed measured by upper time interval t, when measuring first, makes v0=v2。
Distance between two cars calculates according to below equation and obtains:
S=L-R1-R2
Wherein, S is actual spacing, and L is that this vehicle radio receives the terminal distance to front truck wireless transmit terminal, and R1 is this car
Radio receiving terminal is to the ultimate range of headstock outer rim, and R2 is the front truck wireless transmit terminal ultimate range to vehicle body outer rim.
By mount message collecting unit on vehicle, the beam antenna in information acquisition unit is utilized to obtain in real time currently
Distance between nearest vehicle before vehicle distances, vehicle acceleration, speed and directional information；Travel according to the vehicle obtained
Direction and velocity information carry out safe distance between vehicles judgement, if the distance judged between Current vehicle and distance above nearest vehicle is little
Minimum safe spacing between two cars, triggers alarm unit and sends alarm signal.
Beneficial effect
This utility model provides a kind of spacing anti-collision prewarning apparatus based on car networking, and this device includes information gathering list
Unit, alarm unit, data processing unit and power-supply circuit；Described information acquisition unit and alarm unit all with described data
Processing unit is connected, and described power-supply circuit is connected with described data processing unit；Described information acquisition unit includes wireless
Transceiver terminal, acceleration transducer, velocity sensor and electronic compass；It is provided with orientation sky in described wireless receiving and dispatching terminal
Line, obtains Current vehicle distance above nearest distance between vehicle, and sends and receive vehicle by wireless receiving and dispatching terminal and add
Speed, speed and directional information；Whole apparatus structure is simple, has incorporated beam antenna cleverly, has defined range of readings, has made
Obtain the data transmission between vehicle precisely, quickly；Carry out safe distance between vehicles by data processing unit according to vehicle heading to sentence
Disconnected, if the distance judged between Current vehicle and distance above nearest vehicle is less than the minimum safe spacing between two cars, trigger
Alarm unit sends alarm signal.Extensively application based on wireless transmit terminal, uses radio receiving transmitting module range finding, wireless receiving
Terminal installs beam antenna additional, defines read range, in combination with the installation site of wireless transmit terminal so that find range more smart
Really.This utility model can be prevented effectively from the shortcoming that existing anti-collision prewarning apparatus is affected by the external environment, thus reduces wrong report, leakage
The situation of report.
Accompanying drawing explanation
Fig. 1 is the structural representation of device described in the utility model；
Fig. 2 is being arranged on vehicle of device described in the utility model, the distance schematic diagram between vehicle；
Fig. 3 is vehicle when travelling in the same direction, the spacing schematic diagram of vehicle；
When Fig. 4 is vehicle backward going, the spacing schematic diagram of vehicle.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described further.
As it is shown in figure 1, a kind of based on car networking spacing anti-collision prewarning apparatus, including information acquisition unit, alarm unit,
Data processing unit and power-supply circuit；
Described information acquisition unit is all connected with described data processing unit with alarm unit, described power-supply circuit with
Described data processing unit is connected；
Described information acquisition unit includes wireless receiving and dispatching terminal, acceleration transducer, velocity sensor and electronic compass；
Be provided with beam antenna in described wireless receiving and dispatching terminal, obtain Current vehicle distance above recently between vehicle away from
From, and send and receive vehicle acceleration, speed and directional information by wireless receiving and dispatching terminal；
Described vehicle acceleration is obtained by acceleration transducer, and described speed is obtained by velocity sensor, described vehicle side
Obtain to by electronic compass；
Described data processing unit carries out safe distance between vehicles judgement, if judging Current vehicle and distance according to vehicle heading
Above the distance between nearest vehicle is less than the minimum safe spacing between two cars, triggers alarm unit and sends alarm signal.
Utilize the interactive unit being connected with data processing unit, dimension information and the driving behaviour of human pilot to vehicle
It is configured as the response time.
This vehicle radio receives terminal and is arranged on the fixed position of vehicle body, and it is deposited in advance to ultimate range R1 of headstock outer rim
Entering data processing unit, the information of the wireless transmit terminal of the most all vehicles to ultimate range R2 of vehicle body outer rim pre-deposits
In wireless transmit terminal, the speed of front vehicles, the real time information of acceleration are also deposited in wireless transmit terminal, and will letter
Breath is sent by wireless transmit terminal.
In this example, described alarm unit is acousto-optic warning unit.
Minimum safe spacing between described two cars is stored in advance in data processing unit, calculates according to existing method and obtains
?.
Distance between two cars calculates according to below equation and obtains:
S=L-R1-R2
Wherein, S is actual spacing, and L is that this vehicle radio receives the terminal distance to front truck wireless transmit terminal, and R1 is this car
Radio receiving terminal is to the ultimate range of headstock outer rim, and R2 is the front truck wireless transmit terminal ultimate range to vehicle body outer rim, as
Shown in Fig. 2.
If radio receiving terminal t interval time reads a spacing information, in time t, Current vehicle operating range is
L1, front truck operating range is L2；
The two initial spacings of car are S1, after elapsed time t, two car spacings are S2, two car spacing S1, S2All Current vehicle record；a1
And v1It is respectively acceleration and speed, a of Current vehicle2And v2It is respectively acceleration and the speed of front truck, wherein, a1And v1By working as
Vehicle in front information acquisition unit obtains in real time, L1Obtained by distance travelled meter onboard, a2、v2And L2Obtained by formula below
Arrive:
(1) if L2=L1+S2-S1> 0, then two cars are to travel in the same direction:
Now front truck speed: v2=L2/ t, front truck acceleration: a2=(v2-v0)/t, wherein v0For a time interval on front truck
Speed measured by t, when measuring first, makes v0=v2, as shown in Figure 3；
(2) if L2=L1+S2-S1< 0, then two cars are backward going:
Now L2=S1-L1-S2, front truck speed v2=L2/ t, front truck acceleration: a2=(v2-v0)/t, wherein v0For front truck
Speed measured by upper time interval t, when measuring first, makes v0=v2, as shown in Figure 4.
Utilize spacing anti-collision prewarning apparatus based on car networking, by mount message collecting unit on vehicle, utilize letter
Beam antenna in breath collecting unit obtains Current vehicle distance above nearest distance between vehicle in real time, vehicle acceleration,
Speed and directional information；Vehicle heading and velocity information according to obtaining carry out safe distance between vehicles judgement, if judging to work as
Distance between vehicle in front and distance above nearest vehicle, less than the minimum safe spacing between two cars, triggers alarm unit and sends
Alarm signal.
Any detailed description of the invention of the present utility model modified or portion of techniques feature is carried out equivalent,
Without deviating from the spirit of technical solutions of the utility model, the technical scheme scope being claimed at this utility model all should be contained.
Claims (3)
1. one kind based on car networking spacing anti-collision prewarning apparatus, it is characterised in that include information acquisition unit, alarm unit,
Data processing unit and power-supply circuit；
Described information acquisition unit is all connected with described data processing unit with alarm unit, and described power-supply circuit is with described
Data processing unit is connected；
Described information acquisition unit includes wireless receiving and dispatching terminal, acceleration transducer, velocity sensor and electronic compass；
It is provided with beam antenna in described wireless receiving and dispatching terminal, obtains the distance between Current vehicle distance above nearest vehicle,
And send and receive vehicle acceleration, speed and directional information by wireless receiving and dispatching terminal；
Described vehicle acceleration is obtained by acceleration transducer, and described speed is obtained by velocity sensor, described direction of traffic by
Electronic compass obtains；
Described data processing unit carries out safe distance between vehicles judgement according to vehicle heading, if judging, Current vehicle is with distance above
Distance between vehicle is less than the minimum safe spacing between two cars recently, triggers alarm unit and sends alarm signal.
Device the most according to claim 1, it is characterised in that also include the interactive unit being connected with data processing unit.
Device the most according to claim 2, it is characterised in that described alarm unit is acousto-optic warning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710356.9U CN205810137U (en) | 2016-07-06 | 2016-07-06 | A kind of spacing anti-collision prewarning apparatus based on car networking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710356.9U CN205810137U (en) | 2016-07-06 | 2016-07-06 | A kind of spacing anti-collision prewarning apparatus based on car networking |
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| CN205810137U true CN205810137U (en) | 2016-12-14 |
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| CN201620710356.9U Expired - Fee Related CN205810137U (en) | 2016-07-06 | 2016-07-06 | A kind of spacing anti-collision prewarning apparatus based on car networking |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335504A (en) * | 2019-07-04 | 2019-10-15 | 北京交通大学 | Intelligent collision warning system and method based on bus or train route collaboration under vehicle follow gallop state |
| CN110727275A (en) * | 2019-03-20 | 2020-01-24 | 沈阳新松机器人自动化股份有限公司 | RGV dynamic collision avoidance control system and method based on PLC |
-
2016
- 2016-07-06 CN CN201620710356.9U patent/CN205810137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727275A (en) * | 2019-03-20 | 2020-01-24 | 沈阳新松机器人自动化股份有限公司 | RGV dynamic collision avoidance control system and method based on PLC |
| CN110335504A (en) * | 2019-07-04 | 2019-10-15 | 北京交通大学 | Intelligent collision warning system and method based on bus or train route collaboration under vehicle follow gallop state |
| CN110335504B (en) * | 2019-07-04 | 2021-03-16 | 北京交通大学 | Vehicle-road-cooperation-based collision avoidance early warning system and method in vehicle-following state |
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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 |
Granted publication date: 20161214 Termination date: 20200706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |