CN101887643A - Vehicular intelligent speed-limiting device - Google Patents
Vehicular intelligent speed-limiting device Download PDFInfo
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- CN101887643A CN101887643A CN201010204996XA CN201010204996A CN101887643A CN 101887643 A CN101887643 A CN 101887643A CN 201010204996X A CN201010204996X A CN 201010204996XA CN 201010204996 A CN201010204996 A CN 201010204996A CN 101887643 A CN101887643 A CN 101887643A
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Abstract
The invention relates to a vehicular intelligent speed-limiting device which comprises a central processing unit (1), a GPS (Global Positioning System) device (2), a display (3) and a vehicular power supply (9); the GPS device (2) transmits position and speed information to the central processing unit (1), an external environment sensor (5) transmits an external environment sensing signal to the central processing unit (1) through an A/D acquisition card (4), the display (3) receives image alarming information from the central processing unit (1) and sends an audible alarm, and the central processing unit (2) acquires road speed-limiting information in a GIS (Global Information System) software system according to the position information acquired from the GPS device (2), corrects the road speed-limiting information by utilizing an output signal of the external environment sensor (5) and compares the speed information acquired from the GPS device (2) with the corrected speed-limiting information so as to judge whether a vehicle is in a overspeed state or not, thereby selecting whether to carry out alarming prompt on a driver or not so as to enable the driver to slow down.
Description
Technical field
The present invention relates to the automobile active safety field, more specifically, relate to a kind of Vehicular intelligent speed-limiting device.
Background technology
At present, the maximum speed limit threshold value that traditional vehicle overspeed alarming device adopts all is that preset, fixing velocity amplitude, in the use, no matter how the situation of outside road environment changes, all adopts same velocity amplitude to limit, and often reports false-alarm false alert.Application number is that 03226688.X and application number are all to disclose such vehicle overspeed alarming device in 200820062397.7 the Chinese patent literature in the prior art, that these employings are preset, fixing degree of restriction threshold value comes the furious driving behavior of human pilot is retrained, though play certain good effect, but because its threshold speed immobilizes, can not change with extraneous road environment, thereby often report false-alarm false alert, and the driver is produced harmful effect, have a strong impact on traffic safety.
Thereby, the automobile speed limit device based on generalized information system has just appearred in the prior art, and application number is promptly to disclose such automobile speed limit device in 200520026149.3 the Chinese patent literature.This automobile speed limit device based on generalized information system utilizes the GIS Geographic Information System to obtain the speed-limiting messages in different highway sections, and its maximum speed limit threshold value is along with the highway section changes and changes, and has solved that preset, the fixing problem that threshold speed brought.Yet its threshold speed can not change (comprising weather conditions, people's current density, vehicle density etc.) with real external environment, and the variation of its maximum speed limit threshold value still has unicity.Secondly, it has increased the complicacy of system to the collection and utilization vehicle speed sensor of the speed of a motor vehicle.And this automobile speed limit device just reminds and warns driver's hypervelocity behavior, can not prevent driver's intentional hypervelocity behavior.Thereby above-mentioned automobile speed limit device all has functional limitation, can not well improve the hypervelocity behavior, even not have real speed limit effect.
Summary of the invention
Purpose of the present invention will overcome the deficiencies in the prior art exactly, and a kind of Vehicular intelligent speed-limiting device is provided.
Vehicular intelligent speed-limiting device according to the present invention comprises central processing unit, the GPS device, and display and vehicle power, described GPS device comprises GPS receiver and gps antenna; It is characterized in that: described GPS device sends position and velocity information by serial ports to described central processing unit, the external environment detecting sensor sends the external environment perceptual signal by the A/D capture card to described central processing unit, display receives and shows from the image alarm information of central processing unit and the warning message of sounding, described central processing unit is equipped with the GIS software systems, central processing unit utilizes the GIS software systems can obtain the speed-limiting messages in each different highway sections in real time, and can utilize the external environment detecting sensor to judge external environment information, described central processing unit is according to the road speed-limiting messages that is obtained by the positional information of GPS device acquisition in the GIS software systems, and utilize the output signal of external environment detecting sensor that the road speed-limiting messages is revised, velocity information and revised road speed-limiting messages that contrast is obtained by the GPS device, judge whether vehicle is in overspeed condition, thereby select whether to carry out alarm and make the driver carry out deceleration-operation to the driver.
By this device, adopt the GPS device to obtain traveling-position, the speed of operation of vehicle, realize information transmission by serial ports and central processing unit, the external environment detecting sensor is gathered the external environment signal and is sent to central processing unit and handles, calculate by the GPS/GIS coupling, system differentiates the overspeed condition of vehicle automatically and intelligently.And this device adopts the GPS device to replace vehicle speed sensor directly to obtain the vehicle real-time speed, and is simple in structure.Because this device adopts the external environment detecting sensor to introduce the influence of external environment to the restricted speed threshold value, it is intelligent, flexibly to defining of hypervelocity critical value, but not single, fixing, therefore, setting science more to the hypervelocity critical value, thereby the generation of the phenomenon that effectively prevents to exceed the speed limit improves traffic safety.
Preferably, described external environment detecting sensor adopts rain propagated sensation sensor, central processing unit will be analyzed and classification by the rain propagated sensation sensor signal that the A/D capture card collects, the rainy day environment is divided into heavy rain, moderate rain and three ranks of light rain, and the speed-limiting messages in the generalized information system is carried out in various degree correction, thereby realize intelligent speed limit according to these three different rainy day environment.
Preferably, described external environment detecting sensor adopts visibility sensor, central processing unit will be analyzed and classification by the visibility sensor signal that the A/D capture card collects, foggy environment is divided into dense fog, middle mist and three ranks of little mist, and the speed-limiting messages in the generalized information system is carried out in various degree correction, thereby realize intelligent speed limit according to these three different foggy environments.
Preferably, described central processing unit also receives the accelerator open degree signal from efp, according to the transport condition that vehicle is different the accelerator open degree signal is taked different control strategies, and the signal after will handling sends to Engine ECU.For example, when vehicle did not exceed the speed limit, central processing unit sent original accelerator open degree signal to Engine ECU, it was not done speed limit and handled; When vehicle was in overspeed condition, central processing unit was regulated original accelerator open degree signal, thereby reduced distributive value, and vehicle deceleration is travelled, and realized intelligent speed limit.
Most preferably, there is a selector switch on the circuit between described central processing unit and the efp, when selector switch is opened, described central processing unit receives the accelerator open degree signal from efp, according to the transport condition that vehicle is different the accelerator open degree signal is taked different control strategies, and the signal after will handling sends to Engine ECU, thereby control distributive value size realizes intelligent speed control; When selector switch was closed, the accelerator open degree signal of efp directly sent to Engine ECU without central processing unit.
Obviously, Vehicular intelligent speed-limiting device of the present invention has improved the reliability of automobile speed limit device and intelligent greatly, simultaneously, owing to adopt Vehicular intelligent speed-limiting device of the present invention to adopt the external environment detecting sensor that the speed-limiting messages based on the different highway sections of GIS is carried out real-time correction, by control E-Gas output signal to hypervelocity behavior control, can in time solve and be not intended to and deliberate hypervelocity behavior, so improved travel safety widely, reduce traffic hazard, improve traffic safety.
Description of drawings
Fig. 1 is the synoptic diagram of the most preferred embodiment of Vehicular intelligent speed-limiting device of the present invention;
Fig. 2 is the fundamental diagram of Vehicular intelligent speed-limiting device of the present invention shown in Figure 1.
Reference numeral:
1. central processing unit 5. external environment detecting sensors
2.GPS install 6. efps
2.1.GPS receiver 7. accelerator open degree signals
2.2.GPS antenna 8. Engine ECU
3. display 9. vehicle powers
4.A/D capture card 10. selector switch
Embodiment
Figure 1 shows that a most preferred embodiment of the present invention.
As shown in Figure 1, the Vehicular intelligent speed-limiting device of most preferred embodiment of the present invention comprises central processing unit 1, GPS device 2, and display 3 and vehicle power 9, described GPS device 2 comprises GPS receiver 2.1 and gps antenna 2.2; Described GPS device 2 sends position and velocity information by serial ports to described central processing unit 1, external environment detecting sensor 5 sends the external environment perceptual signal by A/D capture card 4 to described central processing unit 1, display 3 receives and shows from the image alarm information of central processing unit 1 and the warning message of sounding, described central processing unit 1 is equipped with the GIS software systems, central processing unit 1 utilizes the GIS software systems can obtain the speed-limiting messages in each different highway sections in real time, there is a selector switch 10 on the circuit between described central processing unit 1 and the efp 6, when selector switch 10 is opened, the accelerator open degree signal 7 that described central processing unit 1 receives from efp 6, Engine ECU 8 will be sent to after this signal Processing, when selector switch 10 was closed, the accelerator open degree signal 7 of efp 6 directly sent to Engine ECU 8 without central processing unit 1.Described central processing unit 1 is according to the road speed-limiting messages that is obtained by the positional information of GPS device 2 acquisitions in the GIS software systems, and utilize the output signal of external environment detecting sensor 5 that the road speed-limiting messages is revised, velocity information and revised road speed-limiting messages that contrast is obtained by GPS device 2, judge whether vehicle is in overspeed condition, then send image and audible alarm to the driver as hypervelocity by display, and when selecting switch 10 to be in opening, control E-Gas aperture signal, thereby control distributive value, and then control rate, avoid the generation of furious driving behavior.
The Vehicular intelligent speed-limiting device principle of work of present embodiment is as follows:
Central processing unit 1 receives and handles the vehicle ' position and the velocity information of GPS device output, the external environment signal of external environment detecting sensor output, and utilize the external environment signal after handling that the speed-limiting messages of generalized information system is revised accordingly, car speed information and revised speed-limiting messages according to the output of GPS device judge intelligently whether vehicle is in the state of driving over the speed limit, thereby select whether to send image and audible alarm information to display, and, realize Based Intelligent Control to the furious driving behavior by the control accelerator open degree signal and then the control speed of a motor vehicle.
Adopt Vehicular intelligent speed-limiting device of the present invention that the monitoring of furious driving behavior is had intelligent, reliability and dirigibility:
Intelligent: owing to adopt the external environment detecting sensor, Vehicular intelligent speed-limiting device of the present invention can change with road environment defining of hypervelocity critical value and change, and is intelligent, flexibly to defining of hypervelocity critical value, but not single, fixing.So just can make the setting science more of hypervelocity critical value, thereby the generation of the phenomenon that effectively prevents to exceed the speed limit improves traffic safety.
Reliability: because Vehicular intelligent speed-limiting device of the present invention obtains the road speed-limiting messages in different highway sections based on generalized information system and changes according to outside road environment, its hypervelocity critical value can effectively suppress the generation of the behavior of exceeding the speed limit more accurately and reliably.
Dirigibility: adopted selector switch, can independently select whether E-Gas to be controlled hommization more.
Though the description of this invention helps to understand the present invention in conjunction with the accompanying drawings above, the present invention never is limited to this illustrated embodiment.On the contrary, in claims institute restricted portion, can make various improvement and replacement to the present invention.
Claims (8)
1. a Vehicular intelligent speed-limiting device comprises central processing unit (1), GPS device (2), and display (3) and vehicle power (9), described GPS device (2) comprise GPS receiver (2.1) and gps antenna (2.2); It is characterized in that: described GPS device (2) sends position and velocity information by serial ports to described central processing unit (1), external environment detecting sensor (5) sends the external environment perceptual signal by A/D capture card (4) to described central processing unit (1), display (3) receives and shows from the image alarm information of central processing unit (1) and the warning message of sounding, described central processing unit (1) is equipped with the GIS software systems, central processing unit (1) utilizes the GIS software systems can obtain the speed-limiting messages in each different highway sections in real time, and can utilize external environment detecting sensor (5) to judge external environment information, described central processing unit (1) is according to the road speed-limiting messages that is obtained by the positional information of GPS device (2) acquisition in the GIS software systems, and utilize the output signal of external environment detecting sensor (5) that the road speed-limiting messages is revised, velocity information and revised road speed-limiting messages that contrast is obtained by GPS device (2), judge whether vehicle is in overspeed condition, thereby select whether to carry out alarm and make the driver carry out deceleration-operation to the driver.
2. Vehicular intelligent speed-limiting device as claimed in claim 1, it is characterized in that: described external environment detecting sensor (5) adopts rain propagated sensation sensor, central processing unit (1) will be analyzed and classification by the rain propagated sensation sensor signal that the A/D capture card collects, the rainy day environment is divided into heavy rain, moderate rain and three ranks of light rain, and the speed-limiting messages in the generalized information system is carried out in various degree correction, thereby realize intelligent speed limit according to these three different rainy day environment.
3. Vehicular intelligent speed-limiting device as claimed in claim 2 is characterized in that: described external environment detecting sensor (5) adopts photo-electric rain propagated sensation sensor.
4. Vehicular intelligent speed-limiting device as claimed in claim 1, it is characterized in that: described external environment detecting sensor (5) adopts visibility sensor, central processing unit (1) will be analyzed and classification by the visibility sensor signal that the A/D capture card collects, foggy environment is divided into dense fog, middle mist and three ranks of little mist, and the speed-limiting messages in the generalized information system is carried out in various degree correction, thereby realize intelligent speed limit according to these three different foggy environments.
5. Vehicular intelligent speed-limiting device as claimed in claim 1, it is characterized in that: described central processing unit (1) receives the accelerator open degree signal (7) from efp (6), according to the transport condition that vehicle is different accelerator open degree signal (7) is taked different control strategies, and the signal after will handling sends to Engine ECU (8), thereby control distributive value size realizes intelligent speed control.
6. as claim 2 or 3 described Vehicular intelligent speed-limiting devices, it is characterized in that: described central processing unit (1) receives the accelerator open degree signal (7) from efp (6), according to the transport condition that vehicle is different accelerator open degree signal (7) is taked different control strategies, and the signal after will handling sends to Engine ECU (8), thereby control distributive value size realizes intelligent speed control.
7. Vehicular intelligent speed-limiting device as claimed in claim 4, it is characterized in that: described central processing unit (1) receives the accelerator open degree signal (7) from efp (6), according to the transport condition that vehicle is different accelerator open degree signal (7) is taked different control strategies, and the signal after will handling sends to Engine ECU (8), thereby control distributive value size realizes intelligent speed control.
8. as the described Vehicular intelligent speed-limiting device of one of claim 5-7, it is characterized in that: have a selector switch (10) on the circuit between described central processing unit (1) and the efp (6), when selector switch is opened, described central processing unit (1) receives the accelerator open degree signal (7) from efp (6), according to the transport condition that vehicle is different accelerator open degree signal (7) is taked different control strategies, and the signal after will handling sends to Engine ECU (8), thereby control distributive value size realizes intelligent speed control; When selector switch was closed, the accelerator open degree signal (7) of efp (6) directly sent to Engine ECU (8) without central processing unit (1).
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| CN102826065A (en) * | 2012-09-12 | 2012-12-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Intelligent safety protection system for automobile |
| CN102866695A (en) * | 2012-09-25 | 2013-01-09 | 浙江吉利汽车研究院有限公司杭州分公司 | Aided driving system on rain or snow days and aided driving method |
| CN103184945A (en) * | 2011-12-27 | 2013-07-03 | 傅黎明 | Vehicle-mounted speed limit system based on navigation database |
| CN103257247A (en) * | 2012-02-17 | 2013-08-21 | 安徽理工大学 | Automobile overspeed alarm system based on visibility meter |
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| CN110246353A (en) * | 2019-06-18 | 2019-09-17 | 北京中位科技有限公司 | A kind of road network map speed limit alarm system based on car-mounted terminal |
| CN110264762A (en) * | 2019-07-03 | 2019-09-20 | 广西玉柴机器股份有限公司 | Method based on road speed limit target value restricted speed |
| CN112644449A (en) * | 2019-10-11 | 2021-04-13 | 李德和 | Passenger-cargo train wind pressure brake warning transmission system |
| CN113257010A (en) * | 2021-04-25 | 2021-08-13 | 安徽创夫子科技有限公司 | Traffic system and vehicle interconnection system |
| CN113653796A (en) * | 2021-08-06 | 2021-11-16 | 东风汽车集团股份有限公司 | Vehicle AMT gear shifting method based on road parameters |
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