CN101470947A - Information acquisition terminal capable of displaying traffic information - Google Patents
Information acquisition terminal capable of displaying traffic information Download PDFInfo
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- CN101470947A CN101470947A CNA2007101728957A CN200710172895A CN101470947A CN 101470947 A CN101470947 A CN 101470947A CN A2007101728957 A CNA2007101728957 A CN A2007101728957A CN 200710172895 A CN200710172895 A CN 200710172895A CN 101470947 A CN101470947 A CN 101470947A
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Abstract
The invention relates to an information obtaining terminal which can display road traffic information and comprises a data receiving unit which is used to receive data packets wirelessly, a storage unit which is used to store electronic maps and to mark a label which represents a road section respectively on each road section in the electronic maps, a processing unit which can decode the data packets which are received by the data receiving unit, can obtain the road section label in the data packets and the road traffic information of the road section, and can reflect the road traffic information on a corresponding road section of the electronic maps, and an information output unit which is used to output the electronic maps which reflect the road traffic information. The information obtaining terminal which can display the road traffic information of the invention can display effective road traffic information which is newly obtained to users at any time, which is beneficial for the users to formulate a travel plan effectively in time.
Description
[affiliated technical field]
The present invention relates to a kind of information acquisition terminal that shows Traffic Information, the Traffic Information correspondence of wireless receiving is shown on the corresponding highway section.
[background technology]
Provide the method for transport information to have three kinds at present: to issue, issue, issue by the electrical screen of roadside setting by the internet by broadcasting station TV station.
Three kinds of top modes respectively have its relative merits.Mode information releasing amount by broadcasting station TV station is limited, and the road section scope that Traffic Information covered is also very limited, and in addition, the user can not in time obtain whole traffic conditions that oneself needs to understand route.
Mode by the website distributing traffic information has remedied the defective that broadcasting, TV mode are issued, and its data that provide are more comprehensive, covered all roads in city substantially.But the user must have the PC that can network can know these information, and general user only learnt about the situation of road before going out, but just has no idea to know the variation of road information after going out.Well-known, the variation of road conditions is real-time, has only real-time data just meaningful to the user.
The mode that direction board is set in the roadside can in time be informed the place ahead road conditions to the user, and but, the cost that this direction board is set up is very high, and quantity of information is little, and the user can not check at any time.
Based on the problems referred to above, need a kind of device that can check the traffic information of relevant road segments by the user at any time in the market.
[summary of the invention]
The object of the present invention is to provide a kind of information acquisition terminal of shown Traffic Information newly, technical matters to be solved is that its Traffic Information that data acquisition module can be got access to is indicated on the corresponding road section of electronic chart.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of information acquisition terminal that shows Traffic Information that invention proposes, it comprises: the Data Receiving unit is used for the wireless receiving packet; Storage unit stores electronic chart, and each highway section in this electronic chart respectively mark represent the label in this highway section; Processing unit, the decoded packet data that the Data Receiving unit can be received, the highway section label in the acquisition packet and the Traffic Information in this highway section, and Traffic Information is mapped on the respective stretch of electronic chart; Information output unit, output is mapped with the electronic chart of Traffic Information.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid information acquisition terminal that shows Traffic Information, in described storage unit, each highway section of electronic chart is stored in each storage area respectively with the form of graph data, and each storage area is stored the highway section labelled notation in highway section to represent, and is provided with the storage space of the Traffic Information that can store this highway section in storage area; Described processing unit is stored in the Traffic Information in the packet in the corresponding storage space according to the highway section label; Described processing unit is when forming electronic chart with the graph data coding, with the graph data in the highway section of storing in each storage area when forming electronic chart, transfer the Traffic Information in this storage area in the lump, and this Traffic Information is mapped on this highway section.
The aforesaid information acquisition terminal that shows Traffic Information stores the coordinate and/or the highway section title in the start-stop place of each highway section in electronic chart in the wherein said storage unit; Processing unit is searched the coordinate and/or the highway section title in corresponding start-stop place according to the highway section label in the packet in electronic chart, and determines and the corresponding highway section of highway section label with this.
The aforesaid information acquisition terminal that shows Traffic Information stores the coordinate in the start-stop place of each highway section in electronic chart in the wherein said storage unit, and is carried in the electronic chart with the graph data of this coordinate with each highway section.
The aforesaid information acquisition terminal that shows Traffic Information, wherein said Traffic Information comprise the speed of a motor vehicle, jam situation, the accident conditions in highway section.
The aforesaid information acquisition terminal that shows Traffic Information, also being included as processing unit in the wherein said information acquisition terminal provides the time clock unit of clock signal, new Traffic Information is not received in the highway section that is mapped with Traffic Information within a certain period of time, and then processing unit is deleted the mapping of this Traffic Information; Receive new Traffic Information within a certain period of time, then processing unit is mapped on the respective stretch with new Traffic Information replacement prime information.
The aforesaid information acquisition terminal that shows Traffic Information, it also comprises the GPS unit, this GPS unit can receive gps coordinate, and can locate in electronic chart according to gps coordinate.
The aforesaid information acquisition terminal that shows Traffic Information, the Traffic Information in gps coordinate, electronic chart and each highway section that wherein said processing unit can receive according to the GPS unit generates the path that can reach the destination the soonest.
By technique scheme, the present invention can show that the information acquisition terminal of Traffic Information has following advantage:
Information acquisition terminal of the present invention can be mapped in Traffic Information on the respective stretch of electronic chart by the packet that receives, thus, the information acquisition terminal of Traffic Information that shows of the present invention can be shown to the user with the effective Traffic Information that newly obtains at any time, helps the user to formulate plan of travel timely and effectively.
[description of drawings]
Fig. 1 is the synoptic diagram of traffic information communication system of the present invention.
Fig. 2 is the structural representation that the present invention can show the information acquisition terminal of Traffic Information.
Fig. 3 is the process flow diagram that the method for Traffic Information is provided of the present invention.
Fig. 4 is the process flow diagram that information acquisition terminal of the present invention obtains Traffic Information.
[embodiment]
Reach technological means and the effect that predetermined purpose is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, a kind of information acquisition terminal that shows Traffic Information to foundation the present invention proposition, its embodiment, structure, feature and effect thereof, describe in detail as after.
Seeing also shown in Figure 1ly, is the structural representation of traffic information communication system of the present invention, and this system comprises: data acquisition module, obtain the Traffic Information in each highway section; Data processing module, wherein be provided with the database that to store each highway section Traffic Information, and each highway section is label respectively, and the Traffic Information of data collecting module collected can be treated as the packet that meets host-host protocol, the Traffic Information with every highway section in this packet is corresponding with the label in this highway section; Data transmission unit is modulated into the analog radio-frequency signal emission with data processing module according to host-host protocol coded data bag; Information acquisition terminal comprises: the Data Receiving unit that is used to receive the packet of data transmission unit emission; Store the storage unit of electronic chart, each highway section in this electronic chart is marked with label respectively, and the label in the same highway section of expression is identical in the database of this label and data processing module; Processing unit with the decoded packet data of Data Receiving unit reception, and is mapped in Traffic Information on the respective stretch of electronic chart according to the highway section label in the packet; Information output unit, output is mapped with the electronic chart of Traffic Information.
The mode that above-mentioned data acquisition module is collected Traffic Information comprises: send the reporter that collects folk songs to some other department, the feedback in real time at the road of key or crossing; The audience of radio station or station synchronization or spectators provide local Traffic Information; By the information that car transfer center is collected, this car transfer center for example is the taxi dispatching center, by this car transfer center the Traffic Information of current grasp is sent to data processing module; The artificial Traffic Information that receives and write down of the staff of artificial paging station utilizes information input unit that Traffic Information is sent to data processing module; The view data that the road observation system obtains, the passage situation in highway section, place is analyzed and calculated to its image of taking in real time by the electronic monitoring system.Above-mentioned Traffic Information has comprised longitude and latitude, road speed, jam situation, accident conditions, and the burst road conditions etc. in all highway sections.
Above-mentioned data processing module receives and gathers the Traffic Information that is obtained by the way by data acquisition module, and this Traffic Information is processed into the data layout that meets host-host protocol with relevant uniform data.Above-mentioned relevant data comprise the pairing highway section of Traffic Information label etc.
Data transmission unit comprises parts such as source encoder, channel encoder, multiplexer, OFDM modulator and analog radio frequency, is used for launching being modulated into analog radio-frequency signal by the host-host protocol coded data.
Information acquisition terminal transfers in the processing unit after by the data decode of parts such as tuner, DAB decoder module, data service demoder, interface and system's master control with data transmission unit emission.
Store the coordinate and/or the highway section title in the start-stop place in electronic chart in each highway section in the electronic chart in the storage unit of above-mentioned information acquisition terminal, the label in each highway section is corresponding with the coordinate and/or the highway section title in the start-stop place in electronic chart in this highway section; Processing unit is searched the coordinate and/or the highway section title in corresponding start-stop place according to the highway section label in the packet in electronic chart, and determines and the corresponding highway section of highway section label with this.Data processing module can also redefine the highway section definition of information acquisition terminal, promptly the highway section in each highway section of storage defines information in the database of data processing module, this highway section definition information comprises the highway section label, the highway section title, and the starting point in highway section, mid point, the coordinate of terminal point in electronic chart, the highway section definition information in Traffic Information and this highway section together is sent to information acquisition terminal, highway section definition information that this information acquisition terminal received and the highway section label in the electronic chart, the highway section title, and the starting point in highway section, mid point, when terminal point coordinate is incomplete same, define the information definition highway section with new highway section, and shine upon the Traffic Information that newly obtains according to the highway section that redefines.
See also shown in Figure 2, it is the synoptic diagram of information acquisition terminal of the present invention, also being included as processing unit in this information acquisition terminal provides the time clock unit of clock signal, new Traffic Information is not received in the highway section that is mapped with Traffic Information within a certain period of time, and then processing unit is deleted the mapping of this Traffic Information; Receive new Traffic Information within a certain period of time, then processing unit is mapped on the respective stretch with new Traffic Information replacement prime information, thereby effectively guarantees the promptness and the validity of the Traffic Information of demonstration, avoids outdated information to mislead the user.In addition, the issuing time that includes Traffic Information in the packet that the present invention can also make data processing module generate, and be provided for providing the clock unit of current time information at information acquisition terminal to processing unit, when the current time interval that provides at the issuing time and the clock unit of Traffic Information reaches certain value, assert that promptly this Traffic Information is expired, then processing unit is deleted the mapping of this Traffic Information on corresponding road section.
Above-mentioned information acquisition terminal can also comprise the GPS unit, and this GPS unit can receive gps coordinate, and processing unit is located in electronic chart according to gps coordinate.The Traffic Information in gps coordinate, electronic chart and each highway section that information acquisition terminal can receive according to the GPS unit generates the path that can reach the destination the soonest.In addition, dividing in electronic chart has a plurality of zones, and the Traffic Information in each highway section generates a packet in the zone; After information acquisition terminal utilizes the gps coordinate location, analyze the described zone of gps coordinate, and preferentially obtain the packet of its region.
Information output unit comprises the display screen that can show the electronic chart that is mapped with Traffic Information.
Above-mentionedly Traffic Information is mapped in respective stretch comprises this Traffic Information is presented at respective stretch, perhaps on this highway section, represent the different kinds of roads transport information with special marking, for example corresponding with corresponding speed interval with the painted of road, red, yellow, green represents that respectively the travel speed 0 to 10km/s, 10 of road is to 30km/s, greater than 30km/s.The type of certain road has multiple, such as being divided into super expressway and ordinary road, can set up model to dissimilar roads, thereby define the painted of road discriminatively.
Particularly, data processing module of the present invention is processed into a packet with Traffic Information and corresponding information, this packet can comprise rate frames, time frame, file frame, road code name definition frame, meteorological frame etc., each frame encoding and decoding all is to be unit with bit, and data stream is used as a bit stream.
Rate frames comprises sync byte (0xFF), check code (CRC), length (LEN), file type (TYPE), road sequence number (START ROAD ID), road speeds (SPEED).This rate frames form is as follows:
In the present embodiment, rate frames TYPE=3, length LEN is relevant with the road quantity that will represent, START ROAD ID only provides the highway section label of first road, stores whole highway sections speed from first road to the last item road that sets successively according to predefined order in the road speeds (SPEED).In addition, all there is unique corresponding with it label in all highway sections, and are many in the quantity of road, and the length of frame can not situation greater than 256 bytes under, therefore a frame can not be sent out the information of all roads.By searching the label in first highway section, information acquisition terminal can be judged respectively corresponding which section road of the speed of storing successively among the SPEED.In addition, rate frames also can use other method for expressing to represent the speed of each road, and is as follows:
By contrast, this transmission method handles simple but the data redundancy amount is big, does not have above-mentioned method effective.
Time frame comprises sync byte (0xFF), check code (CRC), length (LEN), file type (TYPE), time (YYMMDDHHMMSS).This time frame format is as follows:
| 0xFF | CRC | LEN | TYPE | YYMMDDHHMMSS |
In the present embodiment, the TYPE=1 of time frame, frame length LEN=6, frame data comprise information such as year, month, day, hour, min, second.
File frame (file_frame) is used to transmit various files, comprises sync byte (0xFF), check code (CRC), length (LEN), file type (TYPE), file data (DATA).This time frame format is as follows:
| 0xFF | CRC | LEN | TYPE | DATA |
The TYPE=2 of file frame in the present embodiment, frame length is variable, and promptly LEN is fixed value not.First of DATA, second byte is file serial number (file_number), third and fourth byte is file frame number (file_sequence_no), is that 0 o'clock this file frame is document control frame (file_contrl_frame) at the file frame number, and its form is as follows:
| file_number | 0 | file_type | file_frame_sum | filename_len | filename |
File_type represents the type of file.Represent different condition of road surface respectively, close etc., give over to expansion as accident, landslide, traffic control, tunnel.During file_type=AAAA, expression map upgrade data.
File_frame_sum represents the file totalframes.
Filename_len represents filename length.
Filename represents filename, can comprise directory name.
When the file frame number of file frame is the natural number of non-zero, be common file frame, be the content of file frame since the 5th byte, its form is as follows:
| file_number | file_sequence_no | file_frame_content |
File_frame_content partly comprises instant messagings such as accident, warning, notice.These instant messagings send the user to by the form of file frame.In addition, information programme upgrading, map upgrading also can partly be published to information acquisition terminal by the file_frame_content of file frame, after transmission finishes, carry out next time when the user starts shooting and upgrade.
Road code name definition frame (Road ID Frame) comprises sync byte (0xFF), check code (CRC), length (LEN), file type (TYPE), road code definition data (DATA).This road code name definition frame form is as follows:
In the present embodiment, road code frame TYPE=4, length LEN is relevant with the quantity of road.In the road code definition data (DATA):
A represents continent/numbering (Country ID): 11bits of country, span 0～2047bits;
B representative province (state)/city/county (district) numbering (City ID): 20bits, span 0～1048576bits;
C represents highway section start sequence number (Road ID): 16bits, span 0～65535bits;
D represents highway section title (Name): 128bits, 16 English digitals or 8 Chinese characters;
E1 represents highway section starting point longitude and latitude (Position): 128bits;
E2 represents highway section mid point longitude and latitude (Position): 128bits;
E3 represents road segment end longitude and latitude (Position): 128bits;
F represents road segment classification (Road type): 16bits, can indicate road be common,
Information such as viaduct, tunnel, bridge, national highway, provincial highway, county road, single file.
G represents highway section speed limit (Speed): 8bits, and span 0 is to 125bits.
Meteorological frame comprises sync byte (0xFF), check code (CRC), length (LEN), file type (TYPE), weather data (DATA).Meteorological frame format is as follows:
| 0xFF | CRC | LEN | TYPE | DATA(abcdbcd...) |
In the present embodiment, weather frame TYPE=5.
Seeing also shown in Figure 3ly, is the process flow diagram that the invention provides the method for Traffic Information, and this method step is as follows:
Storing electronic map in the storage unit of information acquisition terminal, and in the electronic chart that the database and the information acquisition terminal of data processing module are stored, represent same highway section with identical label respectively, promptly on each highway section of electronic chart to unique label should be arranged, in the database of data processing module, also store the expression same highway section same numeral;
The Traffic Information in data collecting module collected highway section;
Data processing module is created on the label of the Traffic Information gathered and the corresponding road section mode with association in the packet, and promptly the Traffic Information with every highway section is corresponding with the label in this highway section in this packet;
Packet is modulated into the analog radio-frequency signal emission;
Information acquisition terminal receives packet with wireless mode, and the label to decoded packet data acquisition Traffic Information and corresponding road section thereof is mapped in Traffic Information on the respective stretch of electronic chart according to the highway section label in the packet again;
Output is mapped with the electronic chart of Traffic Information.
See also shown in Figure 4, it is the process flow diagram that information acquisition terminal of the present invention obtains Traffic Information, information acquisition terminal tuning high-frequency signal that enters from antenna and carry out the A/D conversion after startup, obtain digital signal and carry out verification, verification is to the packet then discarded packets of makeing mistakes, packet is not made mistakes then to decoded packet data, judge process selection by processing unit according to file type in the packet (TYPE), when receiving the data of time frame (TYPE=1), set up condition of road surface and (comprise Traffic Information, the burst road conditions, accident information etc.) with the corresponding relation of time, so that condition of road surface is eliminated the reflection of itself and road after exceeding effective time; When receiving the data of file frame (TYPE=2), whether the type file_type of Study document belongs to map upgrade data (file_type=AAAA), if belong to then storage frame equals file totalframes (file_frame_sum) in the file data (DATA) until the frame sum of being stored, remind the customer upgrade map then, if do not belong to the map upgrade data, information in the then display file data, and on map, make respective markers; When receiving the data of rate frames (TYPE=3), on the identical highway section of highway section label, indicate road speed; When receiving the data of road code name definition frame (TYPE=4), upgrade the highway section definition of road; When receiving the data of meteorological frame (TYPE=5), set up the corresponding relation of weather conditions and time, and with weather conditions output, make things convenient for the user to transfer road traffic condition record in the type weather in the past.
Claims (8)
1, a kind of information acquisition terminal that shows Traffic Information is characterized in that it comprises:
The Data Receiving unit is used for the wireless receiving packet;
Storage unit stores electronic chart, and each highway section in this electronic chart respectively mark represent the label in this highway section;
Processing unit, the decoded packet data that the Data Receiving unit can be received, the highway section label in the acquisition packet and the Traffic Information in this highway section, and Traffic Information is mapped on the respective stretch of electronic chart;
Information output unit, output is mapped with the electronic chart of Traffic Information.
2, the information acquisition terminal that shows Traffic Information according to claim 1, it is characterized in that, in described storage unit, each highway section of electronic chart is stored in each storage area respectively with the form of graph data, and each storage area is stored the highway section labelled notation in highway section to represent, and is provided with the storage space of the Traffic Information that can store this highway section in storage area; Described processing unit is stored in the Traffic Information in the packet in the corresponding storage space according to the highway section label; Described processing unit is when forming electronic chart with the graph data coding, with the graph data in the highway section of storing in each storage area when forming electronic chart, transfer the Traffic Information in this storage area in the lump, and this Traffic Information is mapped on this highway section.
3, the information acquisition terminal that shows Traffic Information according to claim 1 is characterized in that storing in the wherein said storage unit coordinate and/or the highway section title in the start-stop place of each highway section in electronic chart; Processing unit is searched the coordinate and/or the highway section title in corresponding start-stop place according to the highway section label in the packet in electronic chart, and determines and the corresponding highway section of highway section label with this.
4, the information acquisition terminal that shows Traffic Information according to claim 2, it is characterized in that storing in the wherein said storage unit coordinate in the start-stop place of each highway section in electronic chart, and be carried in the electronic chart with the graph data of this coordinate with each highway section.
5, the information acquisition terminal that shows Traffic Information according to claim 1 is characterized in that wherein said Traffic Information comprises the speed of a motor vehicle, jam situation, the accident conditions in highway section.
6, the information acquisition terminal that shows Traffic Information according to claim 1, it is characterized in that also being included as in the wherein said information acquisition terminal time clock unit that processing unit provides clock signal, new Traffic Information is not received in the highway section that is mapped with Traffic Information within a certain period of time, and then processing unit is deleted the mapping of this Traffic Information; Receive new Traffic Information within a certain period of time, then processing unit is mapped on the respective stretch with new Traffic Information replacement prime information.
7, the information acquisition terminal that shows Traffic Information according to claim 1 is characterized in that it also comprises the GPS unit, and this GPS unit can receive gps coordinate, and can locate in electronic chart according to gps coordinate.
8, the information acquisition terminal that shows Traffic Information according to claim 7 is characterized in that the Traffic Information in gps coordinate, electronic chart and each highway section that wherein said processing unit can receive according to the GPS unit generates the path that can reach the destination the soonest.
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| CNA2007101728957A CN101470947A (en) | 2007-12-25 | 2007-12-25 | Information acquisition terminal capable of displaying traffic information |
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| CNA2007101728957A CN101470947A (en) | 2007-12-25 | 2007-12-25 | Information acquisition terminal capable of displaying traffic information |
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| CN101937458A (en) * | 2010-08-31 | 2011-01-05 | 北京世纪高通科技有限公司 | Simple map generation and release method and device based on traffic information |
| CN102097009A (en) * | 2011-01-06 | 2011-06-15 | 北京世纪高通科技有限公司 | Method and device for processing traffic information |
| CN102411843A (en) * | 2011-09-21 | 2012-04-11 | 中盟智能科技（苏州）有限公司 | Traffic accident prevention analysis system |
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| CN102496296A (en) * | 2011-12-09 | 2012-06-13 | 北京世纪高通科技有限公司 | Method and device for processing traffic information |
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| CN102469112A (en) * | 2010-11-01 | 2012-05-23 | 赵继安 | Position tracking implementation method, device and system |
| CN102097009B (en) * | 2011-01-06 | 2013-05-01 | 北京世纪高通科技有限公司 | Method and device for processing traffic information |
| CN102097009A (en) * | 2011-01-06 | 2011-06-15 | 北京世纪高通科技有限公司 | Method and device for processing traffic information |
| CN102811417A (en) * | 2011-06-03 | 2012-12-05 | 中兴通讯股份有限公司 | System and method for acquiring traffic path |
| CN102411843A (en) * | 2011-09-21 | 2012-04-11 | 中盟智能科技（苏州）有限公司 | Traffic accident prevention analysis system |
| CN102496296A (en) * | 2011-12-09 | 2012-06-13 | 北京世纪高通科技有限公司 | Method and device for processing traffic information |
| CN102496296B (en) * | 2011-12-09 | 2014-04-16 | 北京世纪高通科技有限公司 | Method and device for processing traffic information |
| CN103186979A (en) * | 2011-12-28 | 2013-07-03 | 高德软件有限公司 | Description method and device for traffic state |
| CN103186979B (en) * | 2011-12-28 | 2015-06-24 | 高德软件有限公司 | Description method and device for traffic state |
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| CN103714694A (en) * | 2013-12-13 | 2014-04-09 | 广东车联网信息科技服务有限公司 | Urban traffic information access processing system |
| CN103714694B (en) * | 2013-12-13 | 2016-01-20 | 广东车联网信息科技服务有限公司 | Urban traffic information access disposal system |
| CN106023585A (en) * | 2015-03-25 | 2016-10-12 | 丰田自动车株式会社 | Congestion information generation device and congestion information generation method |
| CN106023585B (en) * | 2015-03-25 | 2018-07-13 | 丰田自动车株式会社 | Traffic congestion information generating means and traffic congestion information generation method |
| CN109564728A (en) * | 2016-07-27 | 2019-04-02 | 住友电气工业株式会社 | Wireless communication system, computer program, is used to determine whether the method for using the information provided at information acquisition terminal |
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| CN107170271B (en) * | 2017-06-22 | 2020-09-01 | 段九兵 | Regional management scheduling method and system for Internet of vehicles |
| CN109326123A (en) * | 2018-11-15 | 2019-02-12 | 中国联合网络通信集团有限公司 | Traffic information treating method and apparatus |
| CN109712404A (en) * | 2018-11-29 | 2019-05-03 | 佛山市航标资讯有限公司 | A kind of non-at-scene enforcement approach of road violation behavior and system |
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| Czogalla et al. | * Senior Engineer, Institut f. Automation und Kommunikation Werner-Heisenberg-Str. 1, 39106 Magdeburg, Germany Phone+ 49 391 990 1442, e-mail: olaf. czogalla@ ifak. eu |
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