CN104751667A - A traffic information management system - Google Patents
A traffic information management system Download PDFInfo
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- CN104751667A CN104751667A CN201410806906.2A CN201410806906A CN104751667A CN 104751667 A CN104751667 A CN 104751667A CN 201410806906 A CN201410806906 A CN 201410806906A CN 104751667 A CN104751667 A CN 104751667A
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- Prior art keywords
- speed limit
- vehicle
- driving path
- speed
- information
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/09675—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where a selection from the received information takes place in the vehicle
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
- G06V20/582—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads of traffic signs
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
Abstract
A traffic information management system which can properly manage traffic information in various speed limit road environments is provided. A digital automobile data recorder (1) comprises a main camera (11) used for shooting a zone including a driving path of a vehicle; an image identification CPU (10) used for identifying road marks according to captured images; and a control system processing CPU (20). When the image identification CPU (10) identifies a speed limit mark as a road mark, the control system processing CPU (20) is used for recording variety of the identified speed limit marks, driving path positions and a driving direction of the vehicle in the driving path as speed limit information. A management device (5) comprises an information management CPU (54) used for acquiring the speed limit information recorded by the digital automobile data recorder (1) of each vehicle, accumulating the acquired speed limit information, and establishing a speed limit map regulating driving path positions and driving directions on the base of the speed limit information having same driving path positions and driving directions.
Description
Technical field
The present invention relates to a kind of traffic information management system.
Background technology
Traditionally, known a kind of traffic information management system comprising vehicle-mounted information recording device and management devices.Such as, the operator using vehicle to carry on the business has crew member's safe driving vehicle and the major issue of Accident prevention of pointing out vehicle.Therefore, such as, use the vehicle-mounted information recording device being called " digital road registering instrument ", make the supvr of operator can check whether each crew member's safe driving every day vehicle.
Digital road registering instrument be each vehicle install and automatically record about the instrument of the information of the revolution of the speed obtained at every certain hour (such as, 0.5 second) or engine.Can be installed on things in management devices (such as, PC) in read the data be recorded in digital road registering instrument by such as cloud system or recording medium.Therefore, supvr can by the transport information utilizing the data being arranged in management devices collected by routine analyzer check dight drive recorder to grasp each crew member.Therefore, it is possible to prompting crew member safety or economically steering vehicle.Such as, this transport information comprises: the running time of vehicle, operating range, maximal rate, average velocity, hypervelocity time, hypervelocity number of times, engine revolution overtime, revolution exceed number of times, suddenly startup, anxious acceleration, anxious deceleration and idle time.
In addition, such as, JP-A-2010-186345 discloses a kind of for by such as detecting about the navigation information that the velocity information of each vehicle at traveling ahead is such and reporting the system comprising the congestion information of upward slope information being present in front in management server.Within the system, server obtains the navigation information transmitted by the Department of Communication Force of each vehicle-mounted instrument, such as about the positional information of vehicle, velocity information or angular velocity information.Server detects the navigation information about all vehicles be positioned in the predetermined road interval in front based on the vehicle on the road of each vehicle place.Server calculates the average velocity of road interval according to velocity information.Travel speed when server extracts the normal time of this road interval from memory storage.Below travel speed when jamming judgment instrument judges whether this average velocity falls into extracted normal time.
Further, JP-A-2000-207677 discloses a kind of congestion detection device that can obtain congestion information about subtend track.This congestion detection device is arranged on vehicle, and has the range sensor for the distance between measuring vehicle and the vehicle in subtend track.When there is vehicle in subtend track, the distance between vehicle and vehicle diminishes.But the distance between each vehicle on subtend track becomes large.Therefore, it is possible to set suitable threshold value to obtain the quantity of the vehicle comprised in this interval by the output of sensor of adjusting the distance.Then, when the vehicle fleet size when subtend track in certain interval exceedes predetermined vehicle fleet size, congestion detection device detects the congested of subtend track.
Summary of the invention
But traditional digital road registering instrument has following problem: only have the information about the speed limit corresponding to common road and highway two kinds of roads.Even if owing to also setting different speed limits according to position on common road or highway, so in traditional digital road registering instrument, hypervelocity judges to reflect actual speed limit deficiently.
And, digital road registering instrument proposes the seizure image by being photographed by camera and speed limit marker recognition is pavement markers and by the speed limit mark that recognizes with car speed compared with and the technology of recording traffic information (such as, hypervelocity).But, in some cases, pavement markers can not be identified according to surface conditions or traffic conditions, even and if when identifying pavement markers, also hypothesis comprises the situation of wrong identification information.
In view of such situation, complete the present invention, and the object of this invention is to provide a kind of traffic information management system of the information that suitably can regulate the traffic in the environment of driving path setting various speed limit.
Traffic information management system according to aspects of the present invention, comprising: vehicle-mounted information recording device, and this vehicle-mounted information recording device is arranged in vehicle, and record is about the transport information of described vehicle; And management devices, the described transport information about described vehicle of this management devices management accounts in described vehicle-mounted information recording device.Described vehicle-mounted information recording device comprises: camera, and this camera exports and comprises the region of the driving path that described vehicle travels and the image that captures by shooting; Image recognizer, this image recognizer identifies pavement markers based on the seizure image exported from described camera; With control system processor, when described image recognizer recognizes speed limit mark as described pavement markers, the direct of travel of the kind that described speed limit marks by this control system processor, the position of driving path and described driving path is recorded as speed-limiting messages.Described management devices comprises: acquisition unit, and this acquisition unit obtains the speed-limiting messages that the described vehicle-mounted information recording device that comprises in each vehicle records; And information manager, this information manager accumulates the described speed-limiting messages obtained by described acquisition unit, and creates the speed limit map of the direct of travel of position and the described driving path defining described driving path based on the described speed-limiting messages that the position of wherein said driving path is identical respectively with the direct of travel of described driving path.
Described traffic information management system can be configured so that described vehicle-mounted information recording device also comprises an acquisition unit, this acquisition unit obtains described speed limit map from described management devices, and described control system processor is handled as follows: the described speed limit map obtained by referring to the described acquisition unit by described vehicle-mounted information recording device and the speed of described vehicle compared with the speed limit corresponding to the described position of described driving path and the direct of travel of described driving path and judge to exceed the speed limit.
Described traffic information management system can be configured so that the described information manager of described management devices by statistically processing the kind of wherein said speed limit mark, described speed-limiting messages that the position of described driving path is identical respectively with the direct of travel of described driving path creates described speed limit map.
According to the present invention, vehicle-mounted information recording device can the information (speed-limiting messages) about speed limit mark that recognizes of the pavement markers on Collection utilization driving path.Therefore, management devices can create the speed limit map of the speed limit defined in the position of driving path based on the speed-limiting messages collected.The existence of speed limit map can build the traffic information management system of the actual speed limit reflected on driving path.As a result, suitably can regulate the traffic information in the road environment of the various speed limit of setting.In addition, due to the multiple speed-limiting messages collected from the vehicle-mounted information recording device be arranged on each vehicle can be used, so high-precision speed limit map can be created.
Accompanying drawing explanation
Fig. 1 is the block figure of the structure that traffic information management system is according to an embodiment of the invention shown.
Fig. 2 describes the process flow diagram according to the operation of the traffic information management system of this embodiment.
Fig. 3 describes the process flow diagram according to the operation of the traffic information management system of this embodiment.
Fig. 4 describes the process flow diagram according to the operation of the traffic information management system of this embodiment.
List of reference signs
1: digital road registering instrument
2: image recognition CPU
11: principal phase machine
12: optional camera
13: demoder
14: storer (ROM)
15: storer (SDRAM)
16: scrambler
17: monitoring efferent
20: control system process CPU
21: storer (ROM)
22: storer (SDRAM)
23: storer (EEPROM)
25: signals of vehicles interface
26:GPS interface
27:CAN interface
28: sound interface
29: recording medium interface
30:PC sets interface
31: vibration efferent
5: management devices
50: display
51: operating portion
52: map data base
53: recording medium interface
54: information management CPU
7: recording medium
Embodiment
Fig. 1 is the key diagram of the structure of the traveling management system illustrated according to the present embodiment, and this traffic information management system comprises digital road registering instrument 1 and management devices 5.
First, digital road registering instrument 1 will be described.Digital road registering instrument 1 is mounted in the example of the vehicle-mounted information recording device in vehicle, and record is about the transport information of vehicle, and mainly comprises image recognition CPU 10 and control system process CPU 20.
Digital road registering instrument 1 comprises principal phase machine 11.Principal phase machine 11 is such as arranged in the car in the such vehicle of such as automobile near pilot set, and shooting is through the presumptive area in the visible front on direct of travel of front windshield.The driving path in front on the direct of travel that vehicle travels, the part, front vehicles, opposed vehicle etc. of the car body of vehicle are taken by principal phase machine 11 as object.Principal phase machine 11 can catch image during the operation of digital road registering instrument 1 always, and repeats practically to catch image with certain frame period (such as, 30 frames are per second), and the image that Sequential output catches.
In addition, except principal phase machine 11 or replace principal phase machine 11, optional camera 12 can be formed.Optional camera 12 is arranged in such as car near back seat, and shooting is through the presumptive area at the visible rear on direct of travel of rear seat windscreen.The driving path at the rear on direct of travel, a part for the car body of vehicle, afterwards vehicle, opposed vehicle etc. are taken by optional camera 12 as object.As the image captured by principal phase machine 11, the image that optional camera 12 captures also can be used in pavement markers identification etc.
The vision signal meeting NTSC (National Television SystemCommittee, National Television System Committee (NTSC)) standard exported from principal phase machine 11 is input to demoder 13.Demoder 13 process meets the vision signal of NTSC standard, and extracts the multiple signal contents (Y, Cb, Cr) comprised in vision signal respectively, and carries out A/D conversion, and generates the picture signal that can be used in image procossing.By image recognition CPU 10 read generate in demoder 13, as the view data of data image signal.Further, when needing, the view data as data image signal is read by control system process CPU 20.
Image recognition CPU 10 has the function of carrying out the such predetermined image process of such as pattern-recognition.Image recognition CPU 10 identifies the pavement markers as the mark be sprayed on driving path that vehicle travels based on the view data corresponding with the seizure image exported from principal phase machine 11.That is, image recognition CPU10 is used as image recognizer.
The storer 14 be made up of ROM and the storer 15 be made up of SDRAM are connected to image recognition CPU 10.Storer 14 prestores various constant data or database to identify pavement markers, and this database is for depositing the information of each feature representing the various patterns used in the pattern of image recognition CPU 10 is checked.Storer 15 is for keeping the such a data of figure such as handled by image recognition CPU 10 temporarily.
Image recognition CPU 10 realizes communication function, and communicates with control system process CPU 20.Particularly, when image recognition CPU 10 recognizes speed limit mark from pavement markers, this image recognition CPU 10 notifies the kind of the speed limit mark that control system process CPU 20 recognizes.
If desired, view data can be outputted to scrambler 16 by image recognition CPU 10.Scrambler 16 image data processing, and generate the vision signal meeting NTSC standard.Scrambler 16 is connected to watch-dog efferent 17, and by watch-dog (not shown) is connected to watch-dog efferent 17, the vision signal of own coding device 16 in the future can output to watch-dog.
Be stored in advance in inner preset program by performing, control system process CPU 20 realizes the various functions that digital road registering instrument 1 needs.Particularly, when control system process CPU 20 reads the information inputted by various interface, this control system process CPU 20 records described information as predetermined transport information.Such as, control system process CPU 20 reads in every certain hour (such as, 0.5 second) in obtain speed, engine revolution etc., and record the running time of such as vehicle hereof, operating range, maximal rate, average velocity, hypervelocity time, hypervelocity number of times, engine revolution overtime, revolution exceed number of times, suddenly start, suddenly accelerate, suddenly slow down and transport information that idle time is such.
The storer 21 be made up of ROM, the storer 22 be made up of SDRAM and the storer 23 be made up of EEPROM are connected to control system process CPU 20.Storer 21 prestores the program such as performed by control system process CPU 20 or the various constant datas used by control system process CPU 20.Storer 22 for keeping ephemeral data, such as process in data.The data of the various constants of storer 23 storage control system process CPU20 institute reference etc.Because storer 23 is nonvolatile memorys, even if so also can data be kept under the state stopped in the electric power supply of power supply.If desired, the content of the data be stored in storer 23 can be rewritten.
Further, control system process CPU20 is connected to various interfaces etc.
Signals of vehicles interface 25 is such as handled as follows: input the various signals exported from vehicle side, and signal is converted to the signal that can be processed by control system process CPU 20.The signal processed by signals of vehicles interface 25 comprises: trigger exports, light a fire (IGN), hand switch (SW), brake, L side flashlamp, R side flashlamp, vehicle speed pulse etc.
GPS interface (I/F) 26 is such as handled as follows: input the positional information from gps receiver, and this information is converted to the signal that can be processed by control system process CPU 20.Gps receiver is for receiving importing radiowave into and obtaining the current location of acceptance point, i.e. the device of the current location (lat/longitude) of vehicle based on the mistiming between these radiowaves by calculating from multiple GPS (GPS) satellite.Therefore, control system process CPU 20 can according to the current location of GPS information identification vehicle.
CAN interface (I/F) 27 is such as handled as follows: input the information from other device be arranged in vehicle, and this information is converted to the signal that can be processed by control system process CPU 20.
Sound interface (I/F) 28 is connected to the audio output unit that such as loudspeaker (not shown) is such, and be such as handled as follows: input the voice signal from control system process CPU 20, and export sound according to voice signal from audio output unit.
Recording medium interface (I/F) 29 has slit, the such booking situation medium 7 of such as storage card can be secured to this slit, and recording medium interface (I/F) 29 comprises the signal processing function needed for control system process CPU 20 recording medium access 7.The file of transport information can be stored in recording medium 7 or be read the speed limit figure be recorded on recording medium 7 by recording medium interface 29 by control system process CPU 20.
PC setting interface (I/F) 30 is the interfaces for main process equipment such for such as PC being connected to digital road registering instrument 1.Setting interface 30 by main process equipment being connected to PC, such as, the violation decision condition of control system process CPU 20 references or various threshold value can be changed by the instruction from this main process equipment.
Vibration efferent 31 comprises compact motor etc., and generates for the careful mechanical vibration of prompt passengers according to the signal from control system process CPU20.
Then, management devices 5 will be described.Management devices 5 is the devices for the transport information about vehicle of management accounts in digital road registering instrument 1.Management devices 5 comprises: display 50, operating portion 51, map data base 52, recording medium interface 53 and information management CPU54.
Display 50 is the instruments for showing various information, and such as, liquid crystal display can be used as display 50.Display 50 is according to the control signal display predetermined information exported from information management CPU54.
Operating portion 51 comprises keyboard or the such point-seleecting device of such as mouse.Operation signal as the instruction operated by keeper is outputted to information management CPU 54 by operating portion 51.
Map data base 52 keeps the map datum comprising information of road surface in advance, the map datum that such as general-utility car guider uses.Further, map data base 52 comprises speed limit data or speed limit map.Speed limit data are data that the accumulation of the speed-limiting messages recorded by the digital road registering instrument 1 of each vehicle is formed, and represent the information of the kind that the speed limit relevant with direct of travel to the position in given travel path marks.Further, speed limit map is the map of the speed defined on the position and direct of travel in given travel path.
Recording medium interface 53 has slit, and the such booking situation medium 7 of such as storage card can be secured to this slit, and recording medium interface (I/F) 53 comprises the signal processing function needed for information management CPU 54 recording medium access 7.When the recording medium 7 that be have recorded traffic information file by digital road registering instrument 1 is secured to the slit of recording medium interface 53, information management CPU 54 can read traffic information file from recording medium 7.Further, speed limit map can be stored in via recording medium interface 53 in the map data base 52 in recording medium 7 by information management CPU 54.
According to the control program be stored in built-in ROM, information management CPU 54, while the whole management devices 5 of control, performs scheduled operation.Particularly, information management CPU 54 obtains the speed-limiting messages recorded by the digital road registering instrument 1 of each vehicle by recording medium interface 53.That is, information management CPU 54 is used as acquisition unit.And, information management CPU 54 accumulates the speed-limiting messages obtained from each vehicle, and creates the speed limit map of the speed limit on position for being defined in driving path and direct of travel based on the speed-limiting messages that the position of wherein driving path is identical respectively with direct of travel.That is, information management CPU 54 is used as information manager.
Operation according to the traffic information management system of this embodiment will be described below.Here, Fig. 2 to 4 is process flow diagrams of the operation of the traffic information management system illustrated according to embodiment.
First, in step slo, image recognition CPU 10 carries out pavement markers identifying processing.Particularly, when read from principal phase machine 11 correspond to the view data of a frame time, image recognition CPU10 carries out the such predetermined image process of such as pattern-recognition based on this view data and the pattern cross-check information that stores in memory 14.When showing pavement markers with discernible form in the seizure image corresponding to view data, identify pavement markers by this image procossing.
In step s 11, image recognition CPU 10 judges whether that the speed limit recognized as pavement markers marks.When making negative evaluation, that is, in step s 11 unidentified to speed limit mark time, flow process is back to the process of step S10.On the other hand, when making affirmative determination, that is, when recognizing speed limit mark in step s 11, flow process enters the process of step S12.
In step s 12, the kind that speed limit marks by image recognition CPU 10 notifies control system process CPU 20.In response to this notice, control system process CPU 20 by comprise the kind of speed limit mark, the time, current location and driving path direct of travel speed-limiting messages record in one file, as a part for transport information.
When by such operation note transport information, when the traveling termination time of such as vehicle is such, fetched the recording medium 7 of the file that have recorded transport information from digital road registering instrument 1 by the keeper of office side.
In the management devices 5 of office side, the recording medium 7 that have recorded the file of transport information is secured to the slit of recording medium interface 53.Therefore, information management CPU 54 reads out the file (step S20) of transport information from recording medium 7 via this recording medium interface 53.
In the step s 21, information management CPU 54 judges whether to have recorded speed-limiting messages based on the transport information read out.When making affirmative determination, that is, when have recorded speed-limiting messages in the step s 21, flow process enters step S22.On the other hand, when making negative evaluation, that is, when not recording speed-limiting messages in the step s 21, when pre-treatment stops.
In step S22, information management CPU 54 is with reference to described speed-limiting messages, and accurately ascertain position and direct of travel that speed limit marks identified driving path, then judge whether be present in map data base 52 corresponding to the position of this driving path and the speed limit data of direct of travel.When making affirmative determination, that is, when there are speed limit data in map data base 52 in step S22, flow process enters step S23.On the other hand, when making negative evaluation, that is, when there are not these speed limit data in map data base 52 in step S22, flow process enters step S26 described below.
In step S23, the kind that information management CPU 54 judges speed limit mark (such as, numerical character " 30 " " 40 " and " 50 ") in the speed-limiting messages read in step S20 whether with the speed limit data consistent of map data base 52.When making affirmative determination, that is, speed limit mark kind and step S23 in speed limit data consistent time, flow process enters step S24.On the other hand, when making negative evaluation, that is, speed limit mark kind and step S23 in speed limit data inconsistent time, flow process enters step S26.
In step s 24 which, information management CPU 54 judges whether the data bulk of speed limit data accumulative in described position exceedes threshold value.When make certainly judge time, that is, when in this step S24, data bulk exceedes this threshold value, flow process enters step S25.On the other hand, when making negative in step s 24 which and judging, that is, when data bulk is no more than this threshold value, flow process enters step S26.
In step s 25, information management CPU 54 exceedes the speed limit data of described threshold value with reference to wherein data bulk, and specifies that kind that speed limit marks is as the speed limit in the position of driving path, thus creates (renewal) speed limit map.
In step S26, position and the direct of travel of the kind that the speed limit of the speed-limiting messages read in step S20 marks by information management CPU 54 and driving path are associated, and then accumulate speed-limiting messages as the speed limit data in map data base 52.
When creating speed limit map by such operation, speed limit map is recorded on such as recording medium 7.
In the digital road registering instrument 1 of vehicle, the recording medium 7 that have recorded the file of speed limit map is secured to the slit of recording medium interface 29.Therefore, control system process CPU 20 reads the file (step S30) of speed limit map from this recording medium 7.
In step S31, control system process CPU 20 judges vehicle whether by the precalculated position (position of driving path and direct of travel) of defined in speed limit map.When making affirmative determination, that is, when in step S31, vehicle is by described precalculated position, flow process enters step S32.On the other hand, when making negative evaluation, that is, when in step S31, vehicle is not by affiliated precalculated position, flow process returns the process of step S30.
In step s 32, based on speed limit map, control system process CPU 20 judges whether the speed of vehicle exceedes threshold value.As the threshold value used in judgement, the speed limit self that specifies in speed limit map can be used in (namely, the position of driving path travelled corresponding to vehicle and the speed limit of direct of travel), but the value that also can use the speed limit by certain surplus being increased to speed limit map and obtain.When making affirmative determination, that is, when speed exceedes threshold value in step s 32, flow process enters step S33.When making negative evaluation, that is, when speed does not exceed threshold value in step s 32, flow process returns the process of step S30.
In step S33, voice signal is input to sound interface 28 by control system process CPU 20, and exports sound according to the voice signal from audio output unit, or operation signal is outputted to vibration efferent 31.Therefore, it is possible to the effect that the speed of prompting driver to vehicle exceedes speed limit arouses attention.
In this embodiment, digital road registering instrument 1 comprises: camera (such as, principal phase machine 11), and this camera is for exporting the image captured by taking the region comprising the driving path that vehicle travels; Image recognition CPU 10 (image recognizer), this image recognition CPU 10 identifies pavement markers based on the seizure image exported from camera; With control system process CPU 20 (control system processor), when speed limit marker recognition is pavement markers by image recognition CPU 10, this control system process CPU 20 for record the kind of speed limit mark, the position of the driving path in driving path and vehicle direct of travel as speed-limiting messages.Management devices 5 comprises: information management CPU 54 (acquisition unit and information manager), this information management CPU 54 is for obtaining the speed-limiting messages recorded by the digital road registering instrument 1 of each vehicle, and accumulate the speed-limiting messages that obtains, and create based on the speed-limiting messages that the position of wherein driving path is identical respectively with the direct of travel of driving path the speed limit map defining the position of each driving path and the speed limit of direct of travel.
According to such structure, digital road registering instrument 1 can collect the information (speed-limiting messages) of the speed limit mark recognized about the pavement markers by driving path.Therefore, management devices 5 can create the speed limit map of the speed limit defined in the position of driving path based on collected speed-limiting messages.Speed limit map can build the traffic information management system of the actual speed limit on reflection driving path.As a result, suitably can regulate the traffic information in the road environment setting various speed limit.In addition, due to the multiple speed-limiting messages collected from the digital road registering instrument 1 be arranged on each vehicle can be used, so high-precision speed limit map can be created.
Further, in this embodiment, the control system process CPU 20 (acquisition unit) of digital road registering instrument 1 obtains speed limit map from management devices 5.Here, control system process CPU 20 preferably carry out for by based on obtained speed limit map by the speed of vehicle with correspond to the position of driving path and the travel direction of this vehicle and compare the process judging to exceed the speed limit.
According to such structure, the use of speed limit map can judge to exceed the speed limit by the actual speed limit on the speed of vehicle and driving path being compared.Therefore, digital road registering instrument 1 can suitably recording traffic information.And, hypervelocity is judged owing to not needing the speed limit mark based on being recognized by self camera, so in some cases, pavement markers can not be identified according to surface conditions or traffic, even and if when can pavement markers be identified and comprise the identifying information of mistake, hypervelocity also suitably can be judged.
And, in this embodiment, the information management CPU 54 of management devices 5 by statistically process the kind of wherein speed limit mark, driving path position many speed-limiting messages identical with the direct of travel of vehicle on driving path and create speed limit map, as shown in step S22 to step S25.
When vehicle is by pavement markers, in some cases, pavement markers can not be identified according to surface conditions or traffic.Further, even if when pavement markers can be identified, the identifying information of mistake may also be comprised.But, by statistically processing example as wherein same vehicle same position repeatedly travel or multiple vehicle at many speed-limiting messages of the traveling of same position, speed limit map can be created accurately.
Be described above the traffic information management system according to this embodiment, but the invention is not restricted to this embodiment, and various change can be made when not deviating from scope of the present invention.Such as, vehicle-mounted information recording device is not limited to digital road registering instrument, and can be applied to other device with such as Tachographs or similar data recording function.Further, in this embodiment, carry out the exchanges data between vehicle-mounted information recording device and management devices by recording medium, but also can carry out exchanges data by such as wired or wireless communication technology.
The Japanese patent application No.2013-263543 that the application submitted to based on Dec 20th, 2013.
Claims (3)
1. a traffic information management system, comprising:
Vehicle-mounted information recording device, this vehicle-mounted information recording device is arranged in vehicle, and record is about the transport information of described vehicle; With
Management devices, the described transport information about described vehicle of this management devices management accounts in described vehicle-mounted information recording device, wherein
Described vehicle-mounted information recording device comprises:
Camera, this camera exports and comprises the region of the driving path that described vehicle travels and the image that captures by shooting;
Image recognizer, this image recognizer identifies pavement markers based on the seizure image exported from described camera; With
Control system processor, when described image recognizer recognizes speed limit mark as described pavement markers, the direct of travel of the kind that described speed limit marks by this control system processor, the position of driving path and described driving path is recorded as speed-limiting messages, and
Described management devices comprises:
Acquisition unit, this acquisition unit obtains the speed-limiting messages that the described vehicle-mounted information recording device that comprises in each vehicle records; With
Information manager, this information manager accumulates the described speed-limiting messages obtained by described acquisition unit, and creates the speed limit map of the direct of travel of position and the described driving path defining described driving path based on the described speed-limiting messages that the position of wherein said driving path is identical respectively with the direct of travel of described driving path.
2. traffic information management system according to claim 1, wherein
Described vehicle-mounted information recording device also comprises an acquisition unit, and this acquisition unit obtains described speed limit map from described management devices, and
Described control system processor is handled as follows: the described speed limit map obtained by referring to the described acquisition unit by described vehicle-mounted information recording device and the speed of described vehicle compared with the speed limit corresponding to the described position of described driving path and the direct of travel of described driving path and judge to exceed the speed limit.
3. traffic information management system according to claim 1 and 2, wherein
The described information manager of described management devices by statistically processing the kind of wherein said speed limit mark, described speed-limiting messages that the position of described driving path is identical respectively with the direct of travel of described driving path creates described speed limit map.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013263543A JP6431261B2 (en) | 2013-12-20 | 2013-12-20 | Operation information management system |
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| JP2015118668A (en) | 2015-06-25 |
| JP6431261B2 (en) | 2018-11-28 |
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