CN104008654A - Automatic speeding illegal act sending system and method for key transportation vehicle - Google Patents
Automatic speeding illegal act sending system and method for key transportation vehicle Download PDFInfo
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- CN104008654A CN104008654A CN201410156886.9A CN201410156886A CN104008654A CN 104008654 A CN104008654 A CN 104008654A CN 201410156886 A CN201410156886 A CN 201410156886A CN 104008654 A CN104008654 A CN 104008654A
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Abstract
The invention discloses an automatic speeding illegal act sending system and method for a key transportation vehicle. The system comprises an image collection unit, an image processing unit, a road segment speed limit value storage unit, a speed collection unit, a GPS positioning unit and a speeding sending unit. Mark plates arranged on the road sides are collected, speed limit mark plates and road segment speed limit values are extracted, then the running speed of the vehicle is obtained in real time, and when the running speed of the vehicle exceeds the speed limit value, the speeding information is sent to an owner of the vehicle. The speed limit information in the scheme can change along with changes of the speed limit mark plates in the road signs, a driver regards the speed limit mark plates as the speed limit bases when driving the vehicle, and the problem that as updating of the limited speed lags behind, speeding misjudgment is caused in the prior art is avoided effectively. In addition, as the speeding information is sent to the owner of the vehicle, the driver is supervised, the owner can take measures on the driver if necessary, more binding force is exerted on the driver, the frequency of illegal acts of the speeding driver is reduced, and consequently the road running safety risk is reduced.
Description
Technical field
The present invention relates to a kind of vehicles overspeed alarm system, specifically a kind of illegal hypervelocity automatic-prompting warning system and method for emphasis transport.
Background technology
Along with the fast development of Road Transportation cause, road transport is day by day busy.In order to prevent and to reduce road traffic accident, vehicle supervision department can be according to the speed designs requirement in section, be provided with different speed(-)limit signs in different sections, alerting drivers can not exceed speed limit in the process of moving, to prevent and to reduce because of the traffic hazard that causes of hypervelocity.China's law on road traffic safety specifies: the automobile driving speed of highway must not exceed 120 kilometers the soonest, while having speed limit road traffic sign or speed limit face mark, should travel in strict accordance with the speed of mark regulation, exceeding that this section restriction speed travels is exactly to drive over the speed limit.The method of at present overspeed of vehicle monitoring adopts the equipment that radar, laser, ground induction coil, video isotype is set at the section in part section that needs speed limit to monitor the vehicle of illegal hypervelocity mostly, but this method is limited to the riding position of the said equipment, can not carry out complete monitoring to the illegal behavior of driving over the speed limit of emphasis haulage vehicle.In order to address the above problem, in Chinese invention patent CN103208187A, a kind of method that detects overspeed of vehicle is disclosed, OBD interface connecting communication device on motor vehicle, the vehicle operating information of this communication device collection vehicle working time, longitude, latitude, the speed of a motor vehicle, automobile logo, send to server by wireless network, server compares the speed in vehicle operating information and this restriction vehicle that section is set, judge, judged result is stored in to server.It is flexible, convenient that this scheme detects, and cost is low and the scope of application is wider.But, in this scheme, the data of the restriction speed of a motor vehicle of setting section need to be set in server.Due in current road network, due to situations such as newly-built, reconstructions, cause the situation in some sections to convert, in addition also exist some special circumstances to cause the restriction speed in the current section of Iterim Change, these information are difficult to feed back in time in server, make in server information updating lag behind, while therefore using the method monitor vehicle hypervelocity, exist restriction speed to change and the erroneous judgement that causes.In addition,, after overspeed of vehicle, some driver is owing to lacking supervision, even if recognize hypervelocity, also ignore, continue to drive over the speed limit, now for emphasis haulage vehicle, as coach, hazardous materials transportation vehicle etc., driver is not car owner, but car owner employ personnel, hypervelocity potential risks are very large, if this hypervelocity information can be sent to car owner, driver is supervised or processed in time, can effectively reduce the security risk of emphasis haulage vehicle.
Summary of the invention
For this reason, technical matters to be solved by this invention is the method for monitor vehicle hypervelocity of the prior art, that the information of the restriction speed of a motor vehicle corresponding section is stored in server, hypervelocity erroneous judgement, the driver who exists restriction speed to upgrade to lag behind and cause lacks the problem of supervision after exceeding the speed limit, and automatically sends to system thereby propose a kind of vehicle speed value that limits according to the speed limit real-time update on section, the hypervelocity illegal activities that can not produce a kind of emphasis haulage vehicle of erroneous judgement.
For solving the problems of the technologies described above, system is sent in the hypervelocity illegal activities that a kind of emphasis haulage vehicle is provided of the present invention automatically, comprising:
Image acquisition units, arranges onboard, and the sign board of vehicle front setting is carried out to image acquisition;
Graphics processing unit, obtains the image information that described image acquisition units collects, and extracts the speed(-)limit sign board in current collection image, and identifies the section speed limit in this speed(-)limit sign board;
Section speed limit storage unit, when vehicle crosses, the position at the speed(-)limit sign board place that is located at vehicle front is follow-up to continue while sailing, and the section speed limit that described graphics processing unit is obtained stores section speed limit storage unit into;
Speed acquisition unit, the current vehicle speed information of Real-time Collection vehicle;
GPS positioning unit, obtains the position of this vehicle in real time;
Hypervelocity is sent to unit, current vehicle speed value and described section speed limit are compared, in the time that the current vehicle speed of vehicle exceedes this section speed limit, hypervelocity information is sent on car owner's handheld terminal, described hypervelocity information comprises current vehicle speed value, position, described section speed limit and current time when vehicle in front.
Preferably, hypervelocity information is sent on car owner's handheld terminal by the form of micro-letter or note, described car owner's handheld terminal is mobile phone or pad or computer.
Preferably, described graphics processing unit also comprises the releasing speed(-)limit sign board extracting in current collection image, and when obtaining after this releasing limit notice plate image information, described section speed limit storage unit is removed section speed limit corresponding this releasing limit notice plate.
Preferably, described speed acquisition unit is connected with the OBD interface of vehicle.
A method is sent in the hypervelocity illegal activities of emphasis haulage vehicle automatically, comprises the steps:
The sign board in Vehicle Driving Cycle front is carried out to image acquisition;
Obtain the image information that described image acquisition units collects, and extract the speed(-)limit sign board in current collection image, and identify the section speed limit in this speed(-)limit sign board;
When vehicle crosses, this speed(-)limit sign board position is follow-up to continue while sailing, and the section speed limit in this section that described graphics processing unit is obtained is as the current speed limit of this vehicle;
The current vehicle speed value of Real-time Collection vehicle, obtain in real time the current location of vehicle by GPS, current vehicle speed value and described section speed limit are compared, in the time that the current vehicle speed value of vehicle exceedes this section speed limit, hypervelocity information is sent on car owner's handheld terminal, and described hypervelocity information comprises current vehicle speed value, position, described section speed limit and current time when vehicle in front.
Preferably, when the sign board in Vehicle Driving Cycle front is carried out to image acquisition, carry out image acquisition to being positioned at the sign board that vehicle heading arranges at vision field of driver.
Preferably, the form of hypervelocity information exchange being crossed to note or micro-letter sends on car owner's handheld terminal, and this handheld terminal comprises mobile phone, pad or computer.
Preferably, when vehicle crosses, this speed(-)limit sign board position is follow-up to continue while sailing, and the section speed limit in this section that described graphics processing unit is obtained, as the process of the current speed limit of this vehicle, comprises
Extract the positional information at speed(-)limit sign board place and the positional information at vehicle place, enter behind speed limit district the current speed limit using the section speed limit in this speed(-)limit sign board as this vehicle when vehicle crosses this positional information.
Preferably, also comprise:
The vehicle speed value of Real-time Collection vehicle, as exceed legal top speed value by current vehicle speed, send on car owner's handheld terminal by the mode of note or micro-letter when the position of vehicle in front and current time.
Preferably, also comprise and extract the image information collecting, remove speed(-)limit sign bridge queen when obtaining, remove speed limit.
Technique scheme of the present invention has the following advantages compared to existing technology,
(1) method and system are sent in the hypervelocity illegal activities that the invention provides a kind of emphasis haulage vehicle automatically, comprise image acquisition units, graphics processing unit, section speed limit storage unit, speed acquisition unit, GPS positioning unit and hypervelocity are sent to unit, speed(-)limit sign board by capture setting on section, and extract speed(-)limit sign board and section speed limit, when vehicle crosses the current speed limit using section speed limit as vehicle of this speed(-)limit sign bridge queen, then obtain in real time the travelling speed of vehicle, when the travel speed of vehicle exceedes after this speed limit, will exceed the speed limit information delivery to car owner, allow car owner supervise or take measures.Section speed limit in this scheme, can change with the variation of the speed(-)limit sign board in section, driver driving vehicle is also using this speed(-)limit sign board as speed limit foundation, effectively avoid the method for monitor vehicle hypervelocity of the prior art, the information of the restriction speed of a motor vehicle corresponding to section is stored in server, the problem of the hypervelocity erroneous judgement that exists restriction speed to upgrade to lag behind and cause.In this programme, obtain in real time this speed(-)limit sign board information as speed limit foundation, there is not the problem of hysteresis, erroneous judgement, the speed limit that vehicle enters on the speed(-)limit sign obtaining according to system after speed-limit road section is monitored Vehicle Speed, when present speed exceedes speed limit, just can report to the police, greatly improve real-time and the accuracy of speed limit monitoring.In addition, by hypervelocity information being sent to car owner's mode, driver is supervised,, car owner can take measures to driver if desired, so just can allow driver there is more binding character, reduce furious driving person's illegal activities, thereby reduce road security of operation risk.
(2) the hypervelocity illegal activities of emphasis haulage vehicle of the present invention are sent to automatically, the travel image of front region of collection vehicle, carry out image acquisition to being positioned at the sign board that vehicle heading arranges at vision field of driver, by choosing the scope of appropriate image acquisition, improve speed and the precision of data processing, be conducive to so accurately identification and extract speed(-)limit sign board and the section speed limit in image.
(3) method is sent in the hypervelocity illegal activities of emphasis haulage vehicle of the present invention automatically, work as the real-time speed value of vehicle in front by the OBD interface acquisition of vehicle and guaranteed that the velometer displayed value of this velocity amplitude and vehicle and actual travel speed are consistent, and have improved the accuracy of speed monitoring.
(4) method and system are sent in the hypervelocity illegal activities of emphasis haulage vehicle of the present invention automatically, form by micro-letter or note sends to hypervelocity information on car owner's handheld terminal, described car owner's handheld terminal is mobile phone or pad or computer, as long as in advance car owner's phone number or micro-signal code are pre-set and can be realized, by which simple and fast, and car owner can obtain this information at any time, be convenient to the enforcement supervision of car owner to driver.
Brief description of the drawings
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structured flowchart that system is sent in the hypervelocity illegal activities of emphasis haulage vehicle of the present invention automatically;
Fig. 2 is the process flow diagram that method is sent in the hypervelocity illegal activities of emphasis haulage vehicle of the present invention automatically.
In figure, Reference numeral is expressed as: 20-GPS positioning unit, and 21-image acquisition units, 22-graphics processing unit, 23-section speed limit storage unit, 24-speed acquisition unit, 25-hypervelocity is sent to unit, 11-speed(-)limit sign board.
Embodiment
embodiment 1:
In the present embodiment, provide a kind of hypervelocity illegal activities of emphasis haulage vehicle automatically to send to system, comprise image acquisition units 21, graphics processing unit 22, section speed limit storage unit 23, speed acquisition unit 24, GPS positioning unit 20, exceed the speed limit and send to unit 25, structural drawing as shown in Figure 1.Specific as follows:
Image acquisition units 21 for camera is onboard set, can realize the Quick Catch to image in motion process, by this camera, the image in the vision field of driver of Vehicle Driving Cycle front is gathered.In the time of image acquisition, the main speed(-)limit sign board 11 gathering in identification vehicle front vision field of driver.
Graphics processing unit 22, obtains the image information that described image acquisition units 21 collects, and extracts the speed(-)limit sign board 11 of current collection, and identifies the section speed limit in this speed(-)limit sign board 11.Due to the implication difference of different traffic mark boards, its color and content are also all different.For example, domestic speed(-)limit sign board 11 is generally redness, and has a red annulus, and the numeral in this annulus is the velocity amplitude of restriction.First, default speed(-)limit sign board 11 models, by obtaining speed(-)limit sign board 11 with comparing of this model.So just, by the mode of mating and identifying, identify speed(-)limit sign board 11 and section speed limit wherein.
Section speed limit storage unit 23, when vehicle crosses, this speed(-)limit sign board 11 positions in the front that is located at vehicle operating direction are follow-up to continue while sailing, the section speed limit that described graphics processing unit 22 is obtained, as the current speed limit in this this section, stores section speed limit storage unit 23 into.Because speed-limit road section all can first arrange speed(-)limit sign board 11, therefore, by behind the position at speed(-)limit sign board 11 places, enter the speed limit district that this speed(-)limit sign board 11 is demarcated.
Speed acquisition unit 24, the current vehicle speed information of Real-time Collection vehicle.Can, by the speed acquisition device of the OBD interface of connection vehicle, obtain the real-time speed information of this vehicle.
GPS positioning unit 20, obtains the position of this vehicle in real time.In this unit, utilize GPS positioning system, this vehicle operating position of real-time acquisition.
Hypervelocity is sent to unit 25, current vehicle speed value and described section speed limit are compared, in the time that the current vehicle speed of vehicle exceedes this speed limit, the handheld terminal that hypervelocity information is sent to car owner by the mode of micro-letter or note is as on the equipment such as mobile phone, computer, pad, and described hypervelocity information comprises current vehicle speed value, position, described section speed limit and current time when vehicle in front.In this system, set in advance car owner's micro-signal code or phone number, be convenient to send micro-letter information or note.
System is sent in the hypervelocity illegal activities of the emphasis haulage vehicle in the present embodiment automatically, comprise image acquisition units 21, graphics processing unit 22, section speed limit storage unit 23, speed acquisition unit 24, GPS positioning unit 20, , hypervelocity is sent to unit 25, sign board by capture setting in Vehicle Driving Cycle road ahead, and extract speed(-)limit sign board 11 and section speed limit, the current speed limit using section speed limit as vehicle after vehicle crosses this speed(-)limit sign board 11, then obtain in real time the travelling speed of vehicle, when the travel speed of vehicle exceedes after this speed limit, to exceed the speed limit information delivery to car owner, allow car owner supervise or take measures.Speed-limiting messages in this scheme, can change with the variation of the speed(-)limit sign board 11 in road sign, driver driving vehicle is also using this speed(-)limit sign board 11 as speed limit foundation, effectively avoid the method for monitor vehicle hypervelocity of the prior art, the information of the restriction speed of a motor vehicle corresponding to section is stored in server, the problem of the hypervelocity erroneous judgement that exists restriction speed to upgrade to lag behind and cause.In this programme, obtain in real time these speed(-)limit sign board 11 information as speed limit foundation, there is not the problem of hysteresis, erroneous judgement, after entering speed limit district, generate section speed limit, when present speed exceedes speed limit, just can report to the police, greatly improved real-time and the accuracy of speed limit monitoring.In addition, by hypervelocity information being sent to car owner's mode, driver is supervised,, car owner can take measures to driver if desired, so just can allow driver there is more binding character, reduce furious driving person's illegal activities, thereby reduce road security of operation risk.
As other further embodiments, described graphics processing unit 22 also comprises the releasing speed(-)limit sign board extracting in current collection image, when obtaining after this releasing limit notice plate image information, described section speed limit storage unit 23 is removed section speed limit corresponding this releasing limit notice plate.Like this, for the section of special limit, when after speed limit release, driver can adjust running velocity, provides foundation for driver recovers drive speed, can not produce wrong report.
embodiment 2:
In the present embodiment, provide a kind of hypervelocity illegal activities of emphasis haulage vehicle automatically to send to method, comprise the steps:
(1) vehicle speed value of Real-time Collection vehicle, can Negotiation speed collecting unit the present speed value (also can obtain by vehicle speedometer dial plate the present speed of vehicle) of the vehicle that provides of 24 hours continuous collection vehicle OBD interfaces.Judge whether the current speed of vehicle exceedes the highest road limit value of safety traffic, as exceed legal top speed value by current vehicle speed, send in car owner's the terminal such as mobile phone or computer by the mode of note or micro-letter when the position of vehicle in front and current time.At present, in the security legislation of China, specify, the highest running speed of vehicle is 120 kilometers per hour, therefore need remain in this top speed when vehicle running velocity, otherwise by this overspeed information delivery to car owner.
(2) image acquisition in the vision field of driver of Vehicle Driving Cycle front is gathered.By the image in the camera collection Vehicle Driving Cycle front vision field of driver of image acquisition units 2, must include the sign board arranging on section.
(2) graphics processing unit 22 obtains the image information that described image acquisition units 21 collects, and extracts the speed(-)limit sign board 11 in the sign board image of current collection, and identifies the section speed limit in this speed(-)limit sign board 11.Due to the implication difference of different traffic mark boards, its color and content are also all different.For example, domestic speed(-)limit sign board 11 is generally redness, and has a red annulus, and the numeral in this annulus is the velocity amplitude of restriction.By the mode of mating and identifying, can identify speed(-)limit sign board 11 and section speed limit wherein.Also can preset speed(-)limit sign board 11 models herein, by comparing of the image collecting and this model obtained to speed(-)limit sign board 11, then obtain the section speed limit in this speed(-)limit sign board 11 by character recognition method.
(3) when vehicle crosses, these speed(-)limit sign board 11 positions are follow-up to continue while sailing, and the section speed limit that described graphics processing unit 22 is obtained, as the current speed limit of this vehicle, is stored in section speed limit storage unit 23.Because speed limit district all can first arrange this speed(-)limit sign board 11, therefore, by behind the position at these speed(-)limit sign board 11 places, enter the speed limit district that this speed(-)limit sign board 11 is demarcated, so just the speed of restriction and position can be mapped in real time.Then, by extracting the positional information at speed(-)limit sign board 11 places as the positional information (as longitude and latitude) at longitude and latitude and vehicle place, when crossing this positional information, vehicle enters behind speed limit district the current speed limit using the section speed limit in this speed(-)limit sign board 11 as this vehicle.
(4) the current vehicle speed value of Real-time Collection vehicle, can accurately obtain the current speed of a motor vehicle by connecting vehicle OBD communication interface.Obtain in real time the current location of vehicle by gps system.Current vehicle speed value and described section speed limit are compared, in the time that the current vehicle speed of vehicle exceedes this speed limit, the mode that hypervelocity information exchange is crossed to note or micro-letter sends on car owner's mobile phone or computer, and described hypervelocity information comprises current vehicle speed value, position, described section speed limit and current time when vehicle in front.
Method is sent in the hypervelocity illegal activities of the emphasis haulage vehicle in the present embodiment automatically, obtain in real time these speed(-)limit sign board 11 speed limits as speed limit foundation, there is not the problem of hysteresis, erroneous judgement, after entering speed limit district, generate speed limit, just can be by this hypervelocity information delivery to car owner when present speed exceedes, the operation conditions of monitoring its vehicle for car owner creates conditions, and has greatly improved real-time and the accuracy of speed limit monitoring.
In said process, can further include by the mode of image processing and extract the image information collecting, remove speed(-)limit sign bridge queen when obtaining, remove this section speed limit.When occurring removing speed(-)limit sign board in the image collecting, mean that current speed limit region finishes, therefore can remove the speed limit in this section, the section speed limit of storage in section speed limit storage unit 23 is removed, if enter new speed-limit road section, restart speed limit.Like this, just speed limit situation is combined with current actual road conditions, for driver and car owner provide the information that exceeds the speed limit accurately.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being extended out thus or variation are still among the protection domain in the invention.
Claims (10)
1. a system is sent in the hypervelocity illegal activities of emphasis haulage vehicle automatically, it is characterized in that, comprising:
Image acquisition units, arranges onboard, and the sign board of vehicle front setting is carried out to image acquisition;
Graphics processing unit, obtains the image information that described image acquisition units collects, and extracts the speed(-)limit sign board in current collection image, and identifies the section speed limit in this speed(-)limit sign board;
Section speed limit storage unit, when vehicle crosses, the position at the speed(-)limit sign board place that is located at vehicle front is follow-up to continue while sailing, and the section speed limit that described graphics processing unit is obtained stores section speed limit storage unit into;
Speed acquisition unit, the current vehicle speed information of Real-time Collection vehicle;
GPS positioning unit, obtains the position of this vehicle in real time;
Hypervelocity is sent to unit, current vehicle speed value and described section speed limit are compared, in the time that the current vehicle speed of vehicle exceedes this section speed limit, hypervelocity information is sent on car owner's handheld terminal, described hypervelocity information comprises current vehicle speed value, position, described section speed limit and current time when vehicle in front.
2. system is sent in the hypervelocity illegal activities of emphasis haulage vehicle according to claim 1 automatically, it is characterized in that, hypervelocity information is sent on car owner's handheld terminal by the form of micro-letter or note, described car owner's handheld terminal is mobile phone or pad or computer.
3. system is sent in the hypervelocity illegal activities of emphasis haulage vehicle according to claim 1 and 2 automatically, it is characterized in that, described graphics processing unit also comprises the releasing speed(-)limit sign board extracting in current collection image, when obtaining after this releasing limit notice plate image information, described section speed limit storage unit is removed section speed limit corresponding this releasing limit notice plate.
4. automatically send to system according to the hypervelocity illegal activities of the emphasis haulage vehicle described in claim 1 or 2 or 3, it is characterized in that, described speed acquisition unit is connected with the OBD interface of vehicle.
5. a method is sent in the hypervelocity illegal activities of emphasis haulage vehicle automatically, it is characterized in that, comprises the steps:
The sign board in Vehicle Driving Cycle front is carried out to image acquisition;
Obtain the image information that described image acquisition units collects, and extract the speed(-)limit sign board in current collection image, and identify the section speed limit in this speed(-)limit sign board;
When vehicle crosses, this speed(-)limit sign board position is follow-up to continue while sailing, and the section speed limit in this section that described graphics processing unit is obtained is as the current speed limit of this vehicle;
The current vehicle speed value of Real-time Collection vehicle, obtain in real time the current location of vehicle by GPS, current vehicle speed value and described section speed limit are compared, in the time that the current vehicle speed value of vehicle exceedes this section speed limit, hypervelocity information is sent on car owner's handheld terminal, and described hypervelocity information comprises current vehicle speed value, position, described section speed limit and current time when vehicle in front.
6. method is sent in the hypervelocity illegal activities of emphasis haulage vehicle according to claim 5 automatically, it is characterized in that, when the sign board in Vehicle Driving Cycle front is carried out to image acquisition, carry out image acquisition to being positioned at the sign board that vehicle heading arranges at vision field of driver.
7. automatically send to method according to the hypervelocity illegal activities of the emphasis haulage vehicle described in claim 5 or 6, it is characterized in that, the form of hypervelocity information exchange being crossed to note or micro-letter sends on car owner's handheld terminal, and this handheld terminal comprises mobile phone, pad or computer.
8. automatically send to method according to the hypervelocity illegal activities of the arbitrary described emphasis haulage vehicle of claim 5-7, it is characterized in that, when vehicle crosses, this speed(-)limit sign board position is follow-up to continue while sailing, the section speed limit in this section that described graphics processing unit is obtained, as the process of the current speed limit of this vehicle, comprises
Extract the positional information at speed(-)limit sign board place and the positional information at vehicle place, enter behind speed limit district the current speed limit using the section speed limit in this speed(-)limit sign board as this vehicle when vehicle crosses this positional information.
9. automatically send to method according to the hypervelocity illegal activities of the arbitrary described emphasis haulage vehicle of claim 5-8, it is characterized in that, also comprise:
The vehicle speed value of Real-time Collection vehicle, as exceed legal top speed value by current vehicle speed, send on car owner's handheld terminal by the mode of note or micro-letter when the position of vehicle in front and current time.
10. automatically send to method according to the hypervelocity illegal activities of the arbitrary described emphasis haulage vehicle of claim 5-9, it is characterized in that, also comprise and extract the image information collecting, remove speed(-)limit sign bridge queen when obtaining, remove speed limit.
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| CN201410156886.9A CN104008654B (en) | 2014-04-18 | 2014-04-18 | Automatic speeding illegal act sending system and method for key transportation vehicle |
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| CN201410156886.9A CN104008654B (en) | 2014-04-18 | 2014-04-18 | Automatic speeding illegal act sending system and method for key transportation vehicle |
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| CN104282147A (en) * | 2014-09-27 | 2015-01-14 | 无锡市恒通智能交通设施有限公司 | Intelligent vehicle monitor method |
| CN106157660A (en) * | 2015-05-11 | 2016-11-23 | 丰田自动车株式会社 | The restriction speed display device of vehicle |
| CN106504542A (en) * | 2016-09-30 | 2017-03-15 | 北京中星微电子有限公司 | Speed intelligent monitoring method and system |
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