CN102194331A - Vehicles interval managing device and vehicles interval managing method - Google Patents
Vehicles interval managing device and vehicles interval managing method Download PDFInfo
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- CN102194331A CN102194331A CN2011100491599A CN201110049159A CN102194331A CN 102194331 A CN102194331 A CN 102194331A CN 2011100491599 A CN2011100491599 A CN 2011100491599A CN 201110049159 A CN201110049159 A CN 201110049159A CN 102194331 A CN102194331 A CN 102194331A
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Abstract
The invention relates to a vehicles interval managing device and a vehicles interval managing method, wherein the vehicles interval managing device (10) comprises a storage section (11), a selecting section (2), an acquiring section (13) and a determining section (14); the storage section (11) is used for storing a data table for corresponding the vehicle speeds to templates with different sizes; the selecting section (2) is used for selecting a template with the size corresponding to the speed of the driving vehicle according to the data table stored in the storage section (11); the acquiring section (13) is used for acquiring an image of a license plate of the vehicle in front of the driving vehicle; and the determining section (14) is used for determining whether the distance between the driving vehicle and the vehicle in front of the driving vehicle is proper according to the template selected by the selecting section (11) and the image of the license plate acquired by the acquiring section (13).
Description
Technical field
The present invention relates to a kind of convoy spacing management devices and convoy spacing management method.
Background technology
In recent years, along with the rule of punishing that road traffic law is revised is strengthened, fuel cost is surging, the quantity of paying close attention to safe driving, the economic driver who drives increases day by day.For paying close attention to safe driving, the economic driver who drives, and to keep suitable vehicle headway between the front vehicles be one of effective driving technology.
For this reason, for purposes such as help safe drivings, the prior art of various measurement vehicle headways has been proposed.If will give an example, following technology has been proposed then: from carrying laser radar head on vehicle, receive from the time till the reflector laser of range finding object by measurement and to measure vehicle headway to range finding object irradiating laser.
In addition, for example for the purpose that is used to drive evaluation, also proposed to come the prior art of the method for change record driving condition according to vehicle headway.For example, following technology is arranged: measure vehicle headway by arbitrary method, can judge that according to the vehicle headway that measures the driver has made under the situation of dangerous movement, the logging mode of change drive recorder (Drive record).
Patent documentation 1: Japanese kokai publication hei 11-203599 communique
Patent documentation 2: TOHKEMY 2002-42288 communique
Summary of the invention
Yet, as described above, for safe driving, the economic driving, guarantee that vehicle headway is important, therefore require to realize registration of vehicle in travelling vehicle headway and estimate the whether suitable technology of vehicle headway.
Yet, even whether suitable present situation be to have used above-mentioned prior art also to be difficult to realize to estimate vehicle headway technology.For example, using the laser radar head to measure in the technology of vehicle headway, existing the corner to detect subtend car test survey is problems such as front vehicles less than front vehicles or the narrow road place mistake of road width.Therefore for this reason, not necessarily under any situation, can both write down vehicle headway, be difficult to realize to carry out the technology of estimating at the driving of vehicle headway.
The disclosed technology of the application is In view of the foregoing finished, and its purpose is to provide a kind of convoy spacing management devices and convoy spacing management method that can realize at the driving evaluation of vehicle headway.
The disclosed convoy spacing management devices of the application has storage part, selection portion, obtaining section and judging part in a mode.The tables of data that storage portion stores is mapped car speed and the template that varies in size.Selection portion is according to being stored in tables of data in the storage part, selects the template with the corresponding size of speed of the vehicle of driving.Obtaining section obtains the image of the license plate of the vehicle that travels in the place ahead of the vehicle of driving.The image of the license plate that judging part is obtained according to the template of being selected by selection portion with by obtaining section, the relevant judgement of vehicle headway between the vehicle that carries out travelling with the vehicle of driving and in the place ahead of the vehicle of driving.
A mode according to the disclosed technology of the application can realize the driving evaluation at vehicle headway.
Description of drawings
Fig. 1 is the figure of the expression convoy spacing management devices relevant with embodiment 1.
Fig. 2 is the figure of the structure of the expression vehicle relevant with embodiment 2.
Fig. 3 is the figure that expression is stored in the structure example of the information in the vehicle headway result of determination storage part relevant with embodiment 2.
Fig. 4 is the figure that expression is stored in the structure example of the information in the template stores portion relevant with embodiment 2.
Fig. 5 is the figure of the structure of the expression driving evaluating apparatus relevant with embodiment 2.
Fig. 6 is the figure of the treatment scheme of the expression convoy spacing management department relevant with embodiment 2.
Fig. 7 is the figure that expression is stored in the structure example of the information in the template stores portion relevant with embodiment 3.
Fig. 8 is the figure of the treatment scheme of the expression convoy spacing management department relevant with embodiment 3.
Fig. 9 is the figure of the structure of the expression vehicle relevant with embodiment 4.
Figure 10 is the figure of the treatment scheme of the expression convoy spacing management department relevant with embodiment 4.
Figure 11 is the figure of an example of the expression computing machine of carrying out the convoy spacing supervisory routine.
Embodiment
Below, explain an embodiment of the disclosed convoy spacing management devices of the application, convoy spacing management method and convoy spacing supervisory routine with reference to accompanying drawing.In addition, below as an embodiment of the disclosed convoy spacing management devices of the application, convoy spacing management method and convoy spacing supervisory routine and embodiment described later does not limit the disclosed technology of the application.
[embodiment 1]
Fig. 1 is the figure of the expression convoy spacing management devices relevant with embodiment 1.As shown in Figure 1, convoy spacing management devices 10 has storage part 11, selection portion 12, obtaining section 13 and judging part 14.
The tables of data that storage part 11 storages are mapped car speed and the template that varies in size.Selection portion 12 is according to the tables of data that is stored in the storage part 11, selects the template with the corresponding size of speed of the vehicle of driving.Obtaining section 13 obtains the image of the license plate of the vehicle that travels in the place ahead of the vehicle of driving.The image of the license plate that judging part 14 is obtained according to the template of being selected by selection portion 11 with by obtaining section 13, the relevant judgement of vehicle headway between the vehicle that carries out travelling with the vehicle of driving and in the place ahead of the vehicle of driving.
For example under the situation of the regulation vehicle headway of between obtaining, guaranteeing according to the speed needs of vehicle and front vehicles, convoy spacing management devices 10 at each speed storage representation of vehicle by the camera of vehicle to the template of license plate of front vehicles.And, when the image of the license plate that obtains front vehicles, convoy spacing management devices 10 by the license plate in this image relatively size and with the size of the corresponding template of speed of vehicle, for example judge whether vehicle headway suitable.
Thus, the convoy spacing management devices 10 relevant with embodiment 1 can be realized the driving evaluation at vehicle headway.
[embodiment 2]
[structure of vehicle (embodiment 2)]
Fig. 2 is the figure of the structure of the expression vehicle relevant with embodiment 2.In addition, the following describes a embodiment when being applied to vehicle with corresponding each the processing capacity portion of the disclosed convoy spacing management devices of the application.
As shown in Figure 2, in vehicle 100, be equipped with: image obtaining section 101, vehicle speed sensor 102, input part 103, display part 104, audio output unit 105, positional information obtaining section 106 and time information obtaining section 107.And, in vehicle 100, be equipped with: storage part 108, exterior storage write section 109 and convoy spacing management department 110.
Positional information obtaining section 106 for example is equivalent to the GPS receiver, by calculating the position of vehicle with communicating by letter of GPS artificial satellite.Positional information obtaining section 106 is for example calculated the position of vehicle under the timing of the image of having been imported front vehicles by image processing apparatus 110a described later, the information relevant with the position of the vehicle of calculating is exported to time information obtaining section 107.In addition, positional information obtaining section 106 can also make the projected route of travelling of navigational system management vehicle by the positional information of vehicle is provided to not shown navigational system.
Time information obtaining section 107 provides service to wait from time information and obtains the time information of being calculated the position of vehicle by positional information obtaining section 106.Time information obtaining section 107 gets up to export to convoy spacing management department 110 with the time information of obtaining with the associating information relevant with the position of the vehicle of obtaining from positional information obtaining section 106.
Fig. 3 is the figure that expression is stored in the structure example of the information in the vehicle headway result of determination storage part relevant with embodiment 2." front vehicles data " shown in Figure 3 are meant data such as the car type that obtains according to the image of the front vehicles that is obtained by image obtaining section 101 and car body color." positional information " shown in Figure 3 is meant the information relevant with the position of the vehicle of being calculated by positional information obtaining section 106." time information " shown in Figure 3 is meant the time information of being obtained by time information obtaining section 107." sign of jumping a queue " shown in Figure 3 is meant the sign that is generated by convoy spacing management department 110 under the situation of the vehicle of having jumped a queue forwardly.
As shown in Figure 3, vehicle headway result of determination storage part 108a is used as the information relevant with the vehicle headway result of determination of convoy spacing management department 110 with " front vehicles data ", " positional information ", " time information ", " sign of the jumping a queue " storage that is mapped.
Fig. 4 is the figure that expression is stored in the structure example of the information in the template stores portion relevant with embodiment 2." front vehicles license plate species " shown in Figure 4 are meant the species of the license plate of the front vehicles that mirrors in the image of being obtained by image obtaining section 101.For example, be by vehicle size, discharge capacity or staffing etc. with the size species of standardized license plate in advance, start from any one numeral in 1,2,3,4,5,6,7,8,9,0.Usually, start from 3 license plate and be called " 3 licence plate ".
" from vehicle speed " shown in Figure 4 is meant the travel speed of the vehicle of being obtained by vehicle speed sensor 102 of driving.Shown in Figure 4 " suitably vehicle headway corresponding templates " be meant be illustrated in and front vehicles between guarantee the template of size of the license plate of the front vehicles that in the image of obtaining by image obtaining section 101, mirrors under the state with the corresponding suitably vehicle headway of the travel speed of vehicle.
As shown in Figure 4, the 108b of template stores portion is mapped " front vehicles license plate species ", " from vehicle speed " and " suitably vehicle headway corresponding templates " to store.For example, the 108b of template stores portion will be mapped as " 3 licence plate " of " front vehicles license plate species ", as " A (km/h) " of travel speed and as suitably " B " of vehicle headway corresponding templates and store.
Here, suitable vehicle headway and suitable vehicle headway corresponding templates are described.Suitably vehicle headway means that the braking that can not be subjected to front vehicles influences and the distance of driving, promptly vehicle carries out avoiding dangerous distance under the situation of brake hard forwardly, and for example the distance that vehicle was advanced for two seconds according to current driving speed is as mark post.For example, be to be about 28 meters under the situation of 50 kilometers of speed per hours in the speed of vehicle, be about in the speed of vehicle under the situation of 60 kilometers of speed per hours and be about 33 meters, be to be about 44 meters under the situation of 80 kilometers of speed per hours in the speed of vehicle.
Therefore, the travel speed that front vehicles is had wide 165 millimeters, long 330 millimeters the license plate of 3 licence plates and a vehicle be that the situation of 60 kilometers of speed per hours lifts is an example.Obtained by image obtaining section 101 under the situation of vehicle apart from the image of the front vehicles of the license plate with 3 licence plates of 33 meters of front vehicles, the size of 3 license plate that will mirror in image is made as suitable vehicle headway corresponding templates.Thus, at each species of license plate, obtain the corresponding suitably vehicle headway corresponding templates of the travel speed of supposing with vehicle respectively.
Exterior storage write section 109 writes the data relevant with the vehicle headway result of determination to storage medium, is writing the end back to outside discharge storage medium.Storage medium is that the user who for example carries out driver's driving evaluation inserts.
Convoy spacing management department 110 has image processing apparatus 110a and vehicle headway detection unit 110b.
Image processing part 110a carries out the image-related processing with the front vehicles that is obtained by image obtaining section 101.For example, when from the image of image obtaining section 101 input front vehicles, image processing part 110a uses prior art to carry out Flame Image Process, obtains the car type of the front vehicles that mirrors in image and the data of car body color.As prior art, for example be suitable for pattern match processing, edge extraction processing, colored 2 value processing etc.And image processing part 110a is recorded in the car type of front vehicles, the data of car body color in the storage inside portion.
In addition, image processing part 110a uses prior art to cut out license plate from the image by the front vehicles of image obtaining section 101 inputs.As prior art, for example be suitable for pattern match processing, edge extraction processing etc.And image processing part 110a is recorded in the data of the license plate of front vehicles in the storage inside portion.
Whether guaranteed suitable vehicle headway between vehicle headway detection unit 110b judgement and the front vehicles.For example, vehicle headway detection unit 110b is from the travel speed of vehicle speed sensor 102 input vehicles.Then, vehicle headway detection unit 110b reads in and the species of license plate and the corresponding suitable vehicle headway corresponding templates of travel speed of vehicle from the 108b of template stores portion from the image that image processing part 110a is taken into the license plate of front vehicles.And vehicle headway detection unit 110b judges that whether size from the image of the license plate of the front vehicles of image processing part 110a is less than the suitable vehicle headway corresponding templates of reading in from the 108b of template stores portion.
Vehicle headway detection unit 110b is under the situation of size less than suitable vehicle headway corresponding templates of image of license plate of front vehicles in result of determination, waits for the image of being imported next front vehicles by image processing part 110a.
On the other hand, vehicle headway detection unit 110b is that the size of image of the license plate of front vehicles is not less than under the situation of suitable vehicle headway corresponding templates in result of determination, reads in the image of the license plate that cuts out from input picture last time from image processing part 110a.And vehicle headway detection unit 110b judges whether the license plate of current input image is identical with the license plate of input picture last time.
Vehicle headway detection unit 110b is under the identical situation of license plate in result of determination, obtains front vehicles data such as car body species, car body color from image processing part 110a.And vehicle headway detection unit 110b associates with the front vehicles data and from the positional information and the time information of time information obtaining section 107 output, and is recorded among the vehicle headway result of determination storage part 108a as the vehicle headway result of determination.
On the other hand, vehicle headway detection unit 110b is under the license plate situation inequality in result of determination, generates to be illustrated in " sign of jumping a queue " that the place ahead has vehicle to jump a queue.Then, vehicle headway detection unit 110b obtains front vehicles data such as car body species, car body color from image processing part 110a.And, vehicle headway detection unit 110b will jump a queue sign, front vehicles data and associate from the positional information and the time information of time information obtaining section 107 outputs, and be recorded among the vehicle headway result of determination storage part 108a as the vehicle headway result of determination.
After the record that has carried out the vehicle headway result of determination, vehicle headway detection unit 110b does not take the warning of suitable vehicle headway to the effect that to driver's notice.For example, vehicle headway detection unit 110b will represent not take the warning message of the general idea of suitable vehicle headway to show output on display part 104, and will not take the auditory tone cues of the general idea of suitable vehicle headway to export to audio output unit 105.And vehicle headway detection unit 110b waits for the image of being imported next front vehicles by image processing part 110a.
Above-mentioned convoy spacing management department 110 is computing machines that microcomputer, microcontroller etc. have used integrated circuit.Special IC), FPGA (Field Programmable Gate Array: field programmable gate array) etc. as integrated circuit, ASIC (Application Specific Integrated Circuit: is for example arranged.
Fig. 5 is the figure of the structure of the expression driving evaluating apparatus relevant with embodiment 2.Operation is driven the driving of evaluating apparatus 200 and is estimated the exterior storage write section 109 that personnel for example are connected to storage medium vehicle 100, the data that are stored in the vehicle headway result of determination among the vehicle headway result of determination storage part 108a are kept in the storage medium, the data that are kept at the vehicle headway result of determination in the storage medium are kept at the inside of driving evaluating apparatus 200.And the data that the user of driving evaluating apparatus 200 obtains with the vehicle headway result of determination serve as that the basis is by driving the driving evaluation information that evaluating apparatus 200 generates.
As shown in Figure 5, driving evaluating apparatus 200 has display part 210, storage part 220 and drives evaluation information efferent 230.In addition, driving evaluating apparatus 220 is for example being connected with the state of printing equipment 300 swap datas such as printer.Printing equipment 300 will be from the driving evaluation information printout of driving evaluating apparatus 200 outputs on the paper medium.
When for example receiving the output indication of driving evaluation information when operating from driving the evaluation personnel, drive evaluation information efferent 230 and read in the data of vehicle headway result of determination, and read in map datum from map datum storage part 220b from vehicle headway result of determination storage part 220a.Then, drive evaluation information efferent 230, be deployed on the map datum, generate the driving evaluation information by other data in the data that will be included in the vehicle headway result of determination according to the positional information in the data that are included in the vehicle headway result of determination.And the driving evaluation information that driving evaluation information efferent 230 will generate shows output on display part 210, and sends to printing equipment 300.
In addition, more than narrated driving evaluating apparatus 200 and exchanged the data conditions of vehicle headway result of determination, but be not limited thereto via storage medium.For example also can be connected with the state that the convoy spacing management department 110 of carrying in vehicle 100 communicates, the data that are stored in the vehicle headway result of determination among the vehicle headway result of determination storage part 108a are taken into drive evaluating apparatus 200 by making driving evaluating apparatus 200.
[processing of convoy spacing management department (embodiment 2)]
Fig. 6 is the figure of the treatment scheme of the expression convoy spacing management department relevant with embodiment 2.As shown in Figure 6, (step S601 when importing the image of front vehicles from image obtaining section 101, be), image processing part 110a uses prior art to carry out Flame Image Process, obtains the car type of the front vehicles that mirrors in image and the data (step S602) of car body color.And image processing part 110a is recorded in (step S603) in the storage inside portion with the car type of front vehicles, the data of car body color.
Here, get back to the explanation of step S601.Image processing part 110a is to till the image of image obtaining section 101 input front vehicles, and the result of determination of step S601 is made as "No".
Then, image processing part 110a uses prior art to cut out the image (step S604) of license plate from the image by the front vehicles of image obtaining section 101 inputs.And image processing part 110a is with the image recording (step S605) in storage inside portion of the license plate of front vehicles.
Then, vehicle headway detection unit 110b is from the travel speed (step S606) of vehicle speed sensor 102 input vehicles.Then, vehicle headway detection unit 110b reads in and the species of the license plate of front vehicles and the corresponding suitable vehicle headway corresponding templates of travel speed (step S607) of vehicle from the 108b of template stores portion.And vehicle headway detection unit 110b judges that whether size from the image of the license plate of the front vehicles of image processing part 110a is less than the suitable vehicle headway corresponding templates (step S608) of reading in from the 108b of template stores portion.
Vehicle headway detection unit 110b in result of determination be the size of image of license plate of front vehicles less than under the situation of suitable vehicle headway corresponding templates (step S608 is), get back to above-mentioned steps S601.
On the other hand, vehicle headway detection unit 110b is that the size of image of the license plate of front vehicles is not less than under the situation of suitable vehicle headway corresponding templates that (step S608 not), carries out and nextly judges in result of determination.It is the license plate whether identical (step S609) that vehicle headway detection unit 110b judges the license plate of current input image and input picture last time.
Vehicle headway detection unit 110b is (step S609 under the identical situation of license plate in result of determination, be), front vehicles data, positional information and time information are associated, and be recorded among the vehicle headway result of determination storage part 108a (step S610) as the vehicle headway result of determination.
On the other hand, vehicle headway detection unit 110b is that (step S609 not), generates and is illustrated in " sign of jumping a queue " (the step S611) that the place ahead has vehicle to jump a queue under the license plate situation inequality in result of determination.And vehicle headway detection unit 110b forwards above-mentioned steps S610 to, and the sign of will jumping a queue, front vehicles data, positional information and time information associate, and is recorded among the vehicle headway result of determination storage part 108a as the vehicle headway result of determination.
After having write down the vehicle headway result of determination, vehicle headway detection unit 110b does not take the warning (step S612) of suitable vehicle headway to the effect that to driver's notice.And vehicle headway detection unit 110b gets back to above-mentioned steps S601.
[effect of embodiment 2]
As mentioned above, in embodiment 2, under the situation of the regulation vehicle headway of between taking, guaranteeing, at each travel speed storage and the corresponding template of template size in the license plate of the front vehicles that photographs from vehicle according to the speed needs of vehicle and front vehicles.In addition, in embodiment 2, when the image of the license plate that obtains front vehicles,, judge whether vehicle headway is suitable by the image of the license plate of front vehicles relatively and the suitable size of vehicle headway corresponding templates.And, in embodiment 2, under the unsuitable situation of vehicle headway, the position of record vehicle at this moment, the moment etc.Thus, can preserve according to embodiment 2 and be used to carry out the information estimated at the driving of vehicle headway.
In addition, in embodiment 2, provide the position of vehicle and be deployed in data on the map constantly to driving the evaluation personnel.Thus, drive the evaluation personnel and can carry out driving evaluation according to these data at vehicle headway.
In addition, in the above embodiments 2, also can be from the image of the license plate of the front vehicles that obtains by image obtaining section 101, calculate and front vehicles between vehicle headway, the vehicle headway of calculating is recorded as the vehicle headway result of determination.
In addition, in the above embodiments 2, though by relatively the image of the license plate of front vehicles and the size of suitable vehicle headway corresponding templates judge that whether vehicle headway is suitable, is not limited thereto.For example preserve in advance and the corresponding suitable spacing distance of travel speed itself.And, also can come actual vehicle headway of calculating with front vehicles according to the image of the license plate of front vehicles, judge by the vehicle headway of relatively calculating and suitable vehicle headway whether vehicle headway is suitable.
[embodiment 3]
In the above embodiments 2, for example also can judgement and front vehicles and vehicle between the corresponding suitably vehicle headway of relative velocity.
[structure of vehicle (embodiment 3)]
Fig. 7 is the figure that expression is stored in the structure example of the information in the template stores portion relevant with embodiment 3.As shown in Figure 7, the 108b of template stores portion is mapped " front vehicles license plate species ", " relative velocity " and " suitably vehicle headway corresponding templates " to store.For example, the 108b of template stores portion will be mapped as " 3 licence plate " of " front vehicles license plate species ", as " C (km/h) " of relative velocity and as suitably " D " of vehicle headway corresponding templates and store.
Vehicle headway detection unit 110b is from the travel speed of vehicle speed sensor 102 input vehicles.Then, vehicle headway detection unit 110b is taken into the image of the license plate of front vehicles from image processing part 110a.And vehicle headway detection unit 110b calculates the relative velocity between front vehicles and the vehicle according to the variation of the license plate size of the travel speed of vehicle and front vehicles.
For example, under the travel speed of vehicle kept certain state, vehicle headway detection unit 110b obtained the size variation of image of license plate of the front vehicles of certain stipulated time.Then, vehicle headway detection unit 110b calculates the variable quantity of the vehicle headway of certain stipulated time, calculates the travel speed of front vehicles according to the variable quantity of the travel speed of vehicle and vehicle headway.And vehicle headway detection unit 110b for example calculates the relative velocity of front vehicles with respect to the relative velocity of vehicle, the front vehicles promptly seen from vehicle.
Calculate after the relative velocity, vehicle headway detection unit 110b reads in and the species and the corresponding suitable vehicle headway corresponding templates of the relative velocity between vehicle and the front vehicles of license plate from the 108b of template stores portion.And vehicle headway detection unit 110b judges that whether size from the image of the license plate of the front vehicles of image processing part 110a is less than the suitable vehicle headway corresponding templates of reading in from the 108b of template stores portion.
[processing of convoy spacing management department (embodiment 3)]
Fig. 8 is the figure of the treatment scheme of the expression convoy spacing management department relevant with embodiment 3.In addition, in the processing of the convoy spacing management department relevant with embodiment 3, the processing of step S806 shown in Figure 8 and step S807 is different with the foregoing description 2.
Promptly as shown in Figure 8, when the image of the license plate by image processing part 110a record front vehicles, vehicle headway detection unit 110b calculates the relative velocity (step S806) between front vehicles and the vehicle.And vehicle headway detection unit 110b reads in and the species and the corresponding suitable vehicle headway corresponding templates of the relative velocity between vehicle and the front vehicles (step S807) of license plate from the 108b of template stores portion.
[effect of embodiment 3]
According to embodiment 3, under the situation of having used the relative velocity between vehicle and the front vehicles, also can carry out driving evaluation in the same manner with the foregoing description 2 to vehicle headway.
In addition, also can use and the corresponding suitable vehicle headway corresponding templates of acceleration of vehicle, and vehicle and front vehicles between the corresponding suitable vehicle headway corresponding templates of relative acceleration, replace relative velocity.
[embodiment 4]
In the foregoing description 2, also can wait the size of proofreading and correct suitable vehicle headway corresponding templates according to the driver's of the characteristic of the driver's of vehicle characteristic, vehicle, front vehicles characteristic.
[structure of vehicle (embodiment 4)]
Fig. 9 is the figure of the structure of the expression vehicle relevant with embodiment 4.As shown in Figure 9, storage part 108 has parameter storage part 108c.Driver's the characteristic that parameter storage part 108c storage is used for characteristic, the front vehicles of characteristic, vehicle according to the driver waits the parameter of the size of proofreading and correct suitable vehicle headway corresponding templates.In addition, in the 108b of template stores portion, do not consider above-mentioned various characteristics, but, store the template of the size corresponding with the vehicle headway that should guarantee corresponding to travel speed at the vehicle of mean size.
Here, the driver's of vehicle characteristic is meant age, driving age of driver for example etc.In addition, the characteristic of vehicle is meant the number of passengers of vehicle for example or load-carrying etc.In addition, the driver's of front vehicles characteristic is meant the driving ability that can be responsible for being arranged on the driver that the regulation mark on the vehicle recognizes by Traffic Administration Bureau.Be provided with in the vehicle forwardly under the situation of so-called " greenery mark ", because the driver is the beginner, it is unskilled therefore to be judged as its driving ability.In addition, be provided with in the vehicle forwardly under the situation of so-called " red autumnal leaves mark ", because the driver is the person at advanced age, it is low therefore to be judged as its driving ability.
For parameter storage part 108c, for example be under the situation of the weak scope of the neural beginning of reflection at driver's age, possible braking distance is elongated.Thus, parameter storage part 108c is at each age store predetermined parameter, and can confirming to guarantee that big more vehicle headway of age is long more, described regulation parameter is used for the size of suitable vehicle headway corresponding templates carried out that a little is less.
In addition, for parameter storage part 108c, be to think under the situation at unskilled age of driving technology for example in driver's driving age, possible braking distance is elongated.Thus, parameter storage part 108c is at each driving age store predetermined parameter, and can confirm to guarantee that short more then vehicle headway of driving age is long more, described regulation parameter is used for the size of suitable vehicle headway corresponding templates is carried out a little correction.
In addition, for parameter storage part 108c, under the big situation of the load-carrying of situation more than the number of passengers of vehicle or vehicle, possible braking distance is elongated.Thus, parameter storage part 108c comes the store predetermined parameter at the load-carrying of each number of passengers or vehicle, can confirm to guarantee that the big more then vehicle headway of number of passengers load-carrying many more or vehicle is long more, described regulation parameter is used for the size of suitable vehicle headway corresponding templates is carried out a little correction.
In addition, for parameter storage part 108c, forwardly the driver of vehicle be the beginner or advanced age the person situation under, might be owing to the front vehicles situation that is in jeopardy.Thus, parameter storage part 108c forwardly the driver of vehicle be the beginner or advanced age the person situation under, the store predetermined parameter, longer can confirm to guarantee vehicle headway, described regulation parameter is used for the size to suitable vehicle headway corresponding templates is carried out a little correction.
Image processing part 110a goes out to be used to judge in the image detection from the front vehicles by image obtaining section 101 input under the situation of regulation mark of driver characteristics of front vehicles, the characteristic that writes down the driver with the car type and the car body color of front vehicles.
Vehicle headway detection unit 110b reads in and the species of license plate and the corresponding suitable vehicle headway corresponding templates of travel speed of vehicle from the 108b of template stores portion.And vehicle headway detection unit 110b reads in characteristic relevant parameters with the driver of the characteristic of vehicle, driver's characteristic and front vehicles from parameter storage part 108c.And vehicle headway detection unit 110b uses the parameter of reading in to revise the size of suitable vehicle headway corresponding templates.
[processing of convoy spacing management department (embodiment 4)]
Figure 10 is the figure of the treatment scheme of the expression convoy spacing management department relevant with embodiment 4.Processing shown in Figure 10 is to begin under the prerequisite of the input of the characteristic of vehicles such as characteristic, number of passengers such as the age that receives above-mentioned driver in advance from the driver, driving age.In addition, in the processing of the convoy spacing management department relevant with embodiment 4, the processing of step S1002 shown in Figure 10, step S1003 and step S1008 is different with the foregoing description 2.
Promptly as shown in figure 10, image processing part 110a obtains the driver's of the data of car type, car body color of the front vehicles that mirrors and front vehicles characteristic (step S1002) in image.And image processing part 110a is recorded in (step S1003) in the storage inside portion with the data relevant with car type, car body color and the driver's of front vehicles characteristic.Vehicle headway detection unit 110b is by revising the size (step S1008) of suitable vehicle headway corresponding templates with the driver's of the characteristic of vehicle, driver's characteristic and front vehicles characteristic relevant parameters.
[effect of embodiment 4]
According to embodiment 4, can add driver's vehicles such as characteristic, number of passengers or load-carrying such as age, driving age characteristic, beginner, advanced age front vehicles such as person the driving evaluation to vehicle headway of driver characteristics.
[embodiment 5]
Below, other embodiment of the disclosed convoy spacing management devices of the application, convoy spacing management method and convoy spacing supervisory routine is described.
(1) apparatus structure etc.
For example, the structure of convoy spacing management department 110 shown in Figure 2 is concept of function, need not and must constitute like that as shown.For example, also can be functionally or physical property ground merge the image processing part 110a and the vehicle headway detection unit 110b of convoy spacing management department 110 shown in Figure 2.Thus, can according to various loads, behaviour in service etc. with arbitrary unit functionally or the whole or part of physical property ground dispersion/merging convoy spacing management department 110 constitute.
(2) convoy spacing management method
By the foregoing description, the convoy spacing management method that the face that is achieved as follows is illustrated.This convoy spacing management method is applicable to above-mentioned convoy spacing management department 110.This convoy spacing management method comprises the selection step, obtains step and determining step.
Above-mentioned selection step is read in this tables of data from the storage part of the tables of data that storage is mapped car speed and the template that varies in size, according to this table that reads in, selects the template with the corresponding size of speed of the vehicle of driving.
Above-mentionedly obtain the image that step obtains the license plate of the vehicle that travels in the place ahead of the vehicle of driving.
Above-mentioned determining step is according to the template of being selected by above-mentioned selection step with by the above-mentioned image of obtaining the license plate that step obtains, judge the vehicle driven and the vehicle that travels in the place ahead of the vehicle of driving between vehicle headway whether suitable.
(3) convoy spacing supervisory routine
In addition, for example the various processing of carrying out by the convoy spacing management department 110 by the foregoing description explanation can also realize by carrying out pre-prepd program by computer systems such as personal computer, workstations.In addition, about the various processing of convoy spacing management department 110, for example will be with reference to Fig. 6,9,10 etc.
Therefore, use Figure 11 that an example of the computing machine of carrying out the convoy spacing supervisory routine is described below, described convoy spacing supervisory routine realizes and the processing identical functions of carrying out by the convoy spacing management department 110 by the foregoing description explanation.Figure 11 is the figure of an example of the expression computing machine of carrying out the convoy spacing supervisory routine.
CPU (central processing unit)) 410, receive input media 420 and monitor 430 as shown in figure 11, as convoy spacing management department 110 and the computing machine 400 of performance function has: CPU (the Central Processing Unit: that carries out various calculation process from the user's data input.
In addition, as shown in figure 11, computing machine 400 has: from the medium reading device 440 of storage medium fetch program etc., via the Network Interface Unit 450 that carries out exchanges data between network and other computing machine.In addition, as shown in figure 11, computing machine 400 has RAM (the Random Access Memory: random access memory) 460 and hard disk unit 470 of interim storing various information.And each installs 410～470 and is connected with bus 480.
In addition, for example can also use MUP (Micro Processing Unit: microprocessing unit) etc. electronic circuit, ASIC (Application Specific Integrated Circuit: special IC), FPGA (Field Programmable Gate Array: field programmable gate array) integrated circuit such as, come replaced C PU 410.In addition, can also use flash memory semiconductor memery devices such as (flash memory), replace RAM 460.
In hard disk unit 470, store with the convoy spacing supervisory routine 471 of the function performance identical function of above-mentioned convoy spacing management department 110 and convoy spacing management with data 472.In addition, can also suitably disperse this convoy spacing supervisory routine 471, be stored in the storage part of other computing machine that can connect communicatedly via network.
And CPU 410 is by reading convoy spacing supervisory routine 471 and it being deployed on the RAM 460 from hard disk unit 470, and as shown in figure 11, convoy spacing supervisory routine 471 is brought into play function as convoy spacing management process (process) 461.The convoy spacing management that convoy spacing management process 461 will be read from hard disk unit 470 is deployed in self the zone that suitably is distributed on the RAM 460 with data 472 grades, carries out various processing according to the various data of this expansion.
In addition, convoy spacing management process 461 for example comprises by the image processing part 110a of convoy spacing management department 110 shown in Figure 2 and the processing of vehicle headway detection unit 110b execution.In addition, the processing carried out of the processing capacity portion by convoy spacing management department 110 is for example corresponding with the processing shown in Fig. 6,9 by the foregoing description explanation, 10 etc.
In addition, about convoy spacing supervisory routine 471, need not just necessarily to be stored in the hard disk unit 470 at first.For example, each program of storage in " removable physical mediums " such as the floppy disk that is inserted into computing machine 400 (FD), CD-ROM, DVD dish, photomagneto disk, IC-cards.And, also can from them, read each program and carry out by computing machine 400.
And, each program of storage in " other computing machine (the perhaps server) " that be connected to computing machine 400 via public line, the Internet, LAN, WAN etc. etc.And, also can from them, read each program and carry out by computing machine 400.
Claims (8)
1. convoy spacing management devices is characterized in that having:
Storage part, the tables of data that its storage is mapped car speed and the template that varies in size;
Selection portion, its basis is stored in the tables of data in the described storage part, the template of the corresponding size of speed of selection and the described vehicle of driving;
Obtaining section, it obtains the image of the license plate of the vehicle that travels in the place ahead of the vehicle of driving; And
Judging part, the image of the license plate that it is obtained according to the template of being selected by described selection portion with by described obtaining section, the relevant judgement of vehicle headway between the vehicle that carries out travelling with the described vehicle of driving and in the place ahead of the described vehicle of driving.
2. convoy spacing management devices according to claim 1 is characterized in that also having:
The positional information obtaining section, it obtains the positional information of the described vehicle of driving;
The time information obtaining section, it obtains the moment of being obtained positional information by described positional information obtaining section;
Calculating part, it is according to the image of the license plate that is obtained by described obtaining section, calculate and the vehicle that just travelling in described the place ahead between vehicle headway; And
Recording portion, it is being under the unsuitable situation of described vehicle headway by described judgement section judges, and the image that will be obtained by described obtaining section, the described information that is obtained by described information obtaining section and be mapped by the described vehicle headway that described calculating part calculates is recorded in the storage part.
3. according to claim 1 or 2 described convoy spacing management devices, it is characterized in that,
Also have warning notice portion, described warning notice portion is being under the unsuitable situation of described vehicle headway by described judgement section judges, to driver's notification alert of the described vehicle of driving.
4. according to claim 1 or 2 described convoy spacing management devices, it is characterized in that,
Also have the relative velocity calculating part, the image of the license plate that described relative velocity calculating part is obtained according to the speed of the described vehicle of driving with by described obtaining section, calculate and the vehicle that travels in the place ahead of the described vehicle of driving between relative velocity,
Described selection portion is selected and the corresponding template of described relative velocity that is calculated by described relative velocity calculating part.
5. according to claim 1 or 2 described convoy spacing management devices, it is characterized in that,
Also have:
The parameter storage part, its storage is used for revising according to the attribute of the driver's of vehicle attribute or vehicle the parameter of described template size; With
Correction unit, it reads in and the driver's of the driver's of the attribute of the described vehicle of driving, this vehicle attribute and the vehicle that just travelling in the place ahead of this vehicle corresponding described parameter of attribute and the parameter of using this to read in from described parameter storage part, proofread and correct the size of the template of selecting by described selection portion
Described judging part is according to the image of the license plate of having been finished the template after the big or small correction by described correction unit and having been obtained by described obtaining section, judge the described vehicle of driving and the vehicle that travels in the place ahead of the described vehicle of driving between vehicle headway whether suitable.
6. a convoy spacing management method is applied to described convoy spacing management devices, and described convoy spacing management method is characterised in that, comprising:
Select step, the storage part of the tables of data that it is mapped car speed and the template that varies in size from storage reads in this tables of data and according to the table that this reads in, and selects the template with the corresponding size of speed of the vehicle of driving;
Obtain step, it obtains the image of the license plate of the vehicle that travels in the place ahead of the described vehicle of driving; And
Determining step, it is according to the template of being selected by described selection step with by the described image of obtaining the license plate that step obtains, the relevant judgement of vehicle headway between the vehicle that carries out travelling with the described vehicle of driving and in the place ahead of the described vehicle of driving.
7. convoy spacing management method according to claim 6 is characterized in that, also comprises:
Positional information obtains step, and it obtains the positional information of the described vehicle of driving;
Constantly obtain step, it is obtained by described positional information and obtains the moment that step obtains positional information;
Calculation procedure, it calculates the vehicle headway with the vehicle that is just travelling in described the place ahead according to by the described image of obtaining the license plate that step obtains;
Recording step, it is being judged as by described determining step under the unsuitable situation of described vehicle headway, will be by describedly obtaining image that step obtains, being obtained positional information that step obtains, obtained moment that step obtains and be mapped by the described vehicle headway that described calculation procedure calculates by the described moment and be recorded in the storage part by described positional information.
8. according to claim 6 or 7 described convoy spacing management methods, it is characterized in that,
Also comprise the warning notice step, described warning notice step is being judged as by described determining step under the unsuitable situation of described vehicle headway, to driver's notification alert of the described vehicle of driving.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-063207 | 2010-03-18 | ||
| JP2010063207A JP2011197947A (en) | 2010-03-18 | 2010-03-18 | Device, method and program for managing intervehicular distance |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410056573.6A Division CN103824475A (en) | 2010-03-18 | 2011-02-25 | Program, device and method for vehicle interval management |
| CN201410056587.8A Division CN103824476A (en) | 2010-03-18 | 2011-02-25 | Device, method and program for vehicle interval management |
Publications (2)
| Publication Number | Publication Date |
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| CN102194331A true CN102194331A (en) | 2011-09-21 |
| CN102194331B CN102194331B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410056587.8A Pending CN103824476A (en) | 2010-03-18 | 2011-02-25 | Device, method and program for vehicle interval management |
| CN201410056573.6A Pending CN103824475A (en) | 2010-03-18 | 2011-02-25 | Program, device and method for vehicle interval management |
| CN201110049159.9A Expired - Fee Related CN102194331B (en) | 2010-03-18 | 2011-02-25 | Vehicles interval managing device and vehicles interval managing method |
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| CN201410056587.8A Pending CN103824476A (en) | 2010-03-18 | 2011-02-25 | Device, method and program for vehicle interval management |
| CN201410056573.6A Pending CN103824475A (en) | 2010-03-18 | 2011-02-25 | Program, device and method for vehicle interval management |
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| CN (3) | CN103824476A (en) |
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Also Published As
| Publication number | Publication date |
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| CN102194331B (en) | 2014-07-09 |
| JP2011197947A (en) | 2011-10-06 |
| CN103824476A (en) | 2014-05-28 |
| CN103824475A (en) | 2014-05-28 |
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