CN102868970A - System and method for actively identifying and communicating with vehicles - Google Patents
System and method for actively identifying and communicating with vehicles Download PDFInfo
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- CN102868970A CN102868970A CN2012103569570A CN201210356957A CN102868970A CN 102868970 A CN102868970 A CN 102868970A CN 2012103569570 A CN2012103569570 A CN 2012103569570A CN 201210356957 A CN201210356957 A CN 201210356957A CN 102868970 A CN102868970 A CN 102868970A
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Abstract
The invention discloses a system and a method for actively identifying and communicating with vehicles, wherein a vehicle-mounted intelligent terminal transmits information to a remote server and receives information transmitted by the remote server, and transmits a unique device identifier as the identifier of the vehicle-mounted intelligent terminal together with vehicle information of the vehicle to the remote server in a wireless mode, so as to realize the binding of the vehicle-mounted intelligent terminal and the vehicle; a GPS (global positioning system) positioning system on the vehicle obtains the GPS positioning information in real time, and uploads the positioning information together with the unique device identifier to the remote server; after the server receives unique device identifiers, the vehicle information and the position information uploaded by all vehicle-mounted intelligent terminals, the data are stored into a databank in a mode that each unique device identifier is used as an item; and the remote server receives and processes the information transmitted by the vehicle-mounted intelligent terminal, and transmits the processing result to a corresponding vehicle-mounted intelligent terminal. With the adoption of the system and the method, identification of vehicles at near distance and point-to-point information communication between vehicles are realized.
Description
Technical field
The present invention relates to wireless communication technology field, be specifically related to the wireless communication technology between a kind of vehicle.
Background technology
Along with the development of society, automobile has become requisite walking-replacing tool in people's life, owing to sharply increasing of vehicle, so that traffic problems increase accordingly greatly.Because a large amount of appearance of traffic problems, how avoiding these traffic problems is problem needing to overcomes of safety trip.If the traffic around the vehicle in the driving process is can Real-time Obtaining current allows the driver carry out ahead of time corresponding preparation or can in time obtain and reminds, can effectively avoid like this appearance of traffic problems, accomplish real safety trip.
For example vehicle in the process of moving, have under following several scenes with near the demand that directly exchanges of vehicle:
1, remind: find that the front vehicles car door does not shut or truck on the abnormal conditions such as goods leakage, remind.
2, inquiry: road blocks up when serious, forwards vehicle inquiry block cause and the order of severity;
3, seek help: vehicle breaks down or the route that arrives the destination is unfamiliar with etc., seeks help near vehicle.
For above-mentioned situation, near the vehicle in exercising how can carry out direct communication and exchange, and can effectively avoid the appearance of some traffic problems: as, by other vehicles to there being the safety problem vehicle in time to remind the generation that can effectively avoid traffic accident; Inform the road traffic congestion by other vehicles, can avoid traffic congestion, further alleviate traffic pressure etc.
Because the ability that existing vehicle does not externally communicate, the personnel in the vehicle externally communicate the following dual mode of main utilization:
(1) utilizes mobile device, because the particularity that mobile device communicates, it is merely able to realize communicate by letter between the mobile device of known both sides' number, utilize the communication between its realization vehicle, the number of mobile device in the other side's vehicle need to be known, the purpose of active communication can't be realized near strange vehicle is carried out at all.
(2) utilize close range public broadcast interphone, although carrying out smoothly voice between the strange vehicle that utilizes close range public broadcast interphone to make closely to travel links up, but public broadcast interphone is the transmission of the information of being undertaken by the radio signals of same frequency, near can not identifying, this method needs the vehicle that exchanges, can only carry out the broadcasting of message, near intercom can both be received, can not carry out point-to-point interchange.
This shows, exercise between identification between the vehicle and vehicle point-to-point information interchange near how realizing and be this area and need badly and deal with problems.
Summary of the invention
The present invention is directed to the problem that to identify and carry out point-to-point communication between the existing enforcement vehicle, and the system of initiative recognition communication between a kind of vehicle is provided.This system utilizes 3G network as information transmitting medium, and in conjunction with location technology, cloud computing, can realize the closely identification between the vehicle, point-to-point information interchange between vehicle.
In order to achieve the above object, the present invention adopts following technical scheme:
The system of initiative recognition communication between the vehicle, this system comprises:
Vehicle intelligent terminal, described vehicle intelligent terminal are used for sending to remote server the information of information and the transmission of receiving remote server; Be provided with the GPS navigation system in the described vehicle intelligent terminal, described vehicle intelligent terminal will reach remote server by wireless mode, the binding of realization equipment and vehicle together with the information of vehicles of place vehicle as the equipment unique identifier of self identification; GPS navigation system Real-time Obtaining GPS locating information in the described vehicle intelligent terminal, and locating information uploaded to remote server together with the equipment unique identifier, with the positional information of real-time update equipment;
Remote server, described server are received the equipment unique identifier that all vehicle intelligent terminals are uploaded, and after information of vehicles and the positional information, take each equipment unique identifier as clauses and subclauses data are stored in the database; Described remote server receives and processes the information that vehicle intelligent terminal sends, and result is sent to corresponding vehicle intelligent terminal.
In the preferred embodiment of system, described vehicle intelligent terminal has corresponding MAC Address, and the MAC Address of self is carried out MD5 code conversion extracts the equipment unique identifier of intelligent terminal as the sign of self.
Based on such scheme, the present invention also provides the method for initiative recognition communication between a kind of vehicle, and the method comprises the steps:
(1) the transmission vehicle intelligent terminal of request communication at first sends the request of obtaining surrounding vehicles information to remote server, includes in this solicited message to send the up-to-date positional information of vehicle intelligent terminal self and the ultimate range that need to get access to information of vehicles;
(2) remote server is identified calculating according to the latest position information that sends other all vehicle intelligent terminals of storing in the up-to-date positional information of vehicle intelligent terminal self, ultimate range that needs get access to information of vehicles and the remote server in the solicited message, obtain the information of satisfactory all vehicle intelligent terminals, and this information is reached the transmission vehicle intelligent terminal;
(3) send vehicle intelligent terminal behind acquired information, the reception vehicle intelligent terminal that selection need to communicate, generate the message data that is used for communication, and be sent to remote server together with the equipment unique identifier of selected reception vehicle intelligent terminal and transmission vehicle intelligent terminal;
(4) information that remote server receives and storage transmission vehicle intelligent terminal sends, and according to the equipment unique identifier that receives vehicle intelligent terminal in the information, this message is sent to the reception vehicle intelligent terminal;
(5) receive vehicle intelligent terminal and receive and the display message content, finish once communication.
In the preferred version of communication means, front all vehicle intelligent terminals of described step (1) send information of vehicles and the equipment unique identifier of place vehicle to remote server, remote server is finished the binding of vehicle intelligent terminal and place vehicle with equipment unique identifier and information of vehicles corresponding stored.
Further, comprise also in the described method that vehicle intelligent terminal sends the step of the positional information that includes the equipment unique identifier in real time to remote server, and remote server is according to the step of equipment unique identifier real-time update correspondence position information.
Further, the implementation procedure of described step (2) is as follows:
(21) remote server extracts the positional information of the transmission vehicle intelligent terminal in the solicited message and the ultimate range Max that need to get access to information of vehicles;
(22) positional information of all online vehicle intelligent terminals in the reading database, and the positional information corresponding with sending vehicle intelligent terminal calculated respectively, draws distance less than information of vehicles corresponding to vehicle intelligent terminal of obtaining information ultimate range Max.
Further, described step (22) computational process is as follows:
(221) at first calculate the distance that two vehicle intelligent terminal correspondence positions differ at longitude, if the distance that differs has surpassed ultimate range Max, then skip;
(222) if less than Max, then carry out accurately distance calculating by longitude and latitude again, computing formula is
(α wherein
1, β
1), (α
2, β
2) be respectively the latitude and longitude coordinates of two vehicle intelligent terminal correspondence positions, α
1, α
2Longitude coordinate, α
1, α
2∈ [π, π], β
1, β
2Latitude coordinate, β
1, β
2∈ [pi/2, pi/2];
(223) read after step (222) is calculated apart from less than the vehicle intelligent terminal of ultimate range Max corresponding information of vehicles and equipment unique identifier.
Further, the implementation procedure of described step (4) is as follows:
(41) send the equipment unique identifier of vehicle intelligent terminal, the message content that receives the equipment unique identifier of vehicle intelligent terminal and be used for communicating by letter in the remote server information extraction, and temporary transient storing message content;
(42) from database, read the information of vehicles of its corresponding vehicle according to the equipment unique identifier that sends vehicle intelligent terminal, and deposit in the message table in the database with the equipment unique identifier that receives vehicle intelligent terminal and message content, and take the equipment unique identifier that receives vehicle intelligent terminal as the message destination address field (DAF);
(43) remote server is when the equipment unique identifier of uploading in real time according to all vehicle intelligent terminals and positional information are upgraded corresponding vehicle intelligent terminal positional information, remote server can keep being connected with the TCP of this vehicle intelligent terminal after reading positional information, and according to the message destination address field (DAF) in the continuous Query Database message table of its corresponding equipment unique identifier whether the equipment unique identifier that receives vehicle intelligent terminal is arranged;
(44) if having, remote server reads message content and pushes in the past according to the equipment unique identifier that receives vehicle intelligent terminal together with the information of vehicles of storing in these clauses and subclauses in the database message table, and disconnects; If no, be connected with vehicle intelligent terminal above disconnecting behind the certain hour when the time of implementation.
Further, described method also comprises the step that receives the vehicle intelligent terminal return information, and this step adopts the method for step (4)-(5) to realize.
The present invention utilizes the interior intelligent terminal of car as the platform of information interchange between the vehicle, the high speed 3G network is as information transmitting medium, and in conjunction with location technology, cloud computing, effectively guarantee accuracy, the real-time of information interaction between the vehicle, for the feasible approach that provides closely is provided between the vehicle.
The present invention compared with prior art has the following advantages:
1. can identify target vehicle, guarantee to exchange with this vehicle;
2. can carry out point-to-point interchange, guarantee information is only transmitted between communicating pair;
3. the positional information of vehicle can be upgraded at any time, and is close on the geographical position to guarantee exchanging both sides;
4. under the high vehicle speeds environment, communication quality is guaranteed;
5. send and receive information has very easily operation and friendly interactive mode, such as voice control, can guarantee that driver's energy concentrates on vehicle front.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the system block diagram among the present invention;
Fig. 2 is system's operation logic figure among the present invention;
Fig. 3 is that the present invention carries out the flow chart that vehicle exchanges;
Fig. 4 is the principle schematic of medium-long range server push message of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, the system 100 of initiative recognition communication between the vehicle provided by the invention, it mainly comprises vehicle intelligent terminal 101 and remote server 102 two parts.
Vehicle intelligent terminal 101, this terminal 101 is placed on the corresponding vehicle, send information by wireless mode to remote server and send relevant information with the receiving remote server, such as the log-on message (model of vehicle, license plate number etc.) of vehicle, the positional information of vehicle, equipment unique identifier (UDID, Unique Device Identifier) of terminal etc.
In the specific implementation, this vehicle intelligent terminal 101 comprises wireless communication module 101a, central processing module 101b, MIM message input module 101c, display module 101d, GPS navigation system 101e etc.
Wireless communication module 101a is used for the information data that sending and receiving is handled well, and it has unique MAC Address.
MIM message input module 101c is used for the relevant information of input, such as word information to be sent, voice messaging or be used for the log-on message (model of vehicle, license plate number etc.) etc. of the vehicle of registration.
Central processing module 101b is the information processing centre of whole terminal, its MAC Address to this terminal is carried out the conversion of MD5 code and is extracted the equipment unique identifier (UDID, Unique Device Identifier) of intelligent terminal as the sign to each equipment.This module is processed the information of MIM message input module 101c input, and the information of input number is encoded with UDID forms corresponding data to be sent, and is sent to remote server 102 by wireless communication module 101a; Moreover central processing module 101b decoding data that wireless communication module 101a is received, and the information exchange of the processing of will decode is crossed display module 101d and is realized; The GPS locating information that also has central processing module 101b to obtain from GPS navigation system 101e, from the GPS message, extract the latitude, longitude field, making it form vehicle intelligent terminal 101(with UDID is vehicle) the position message information, and make it be sent to remote server 102 by wireless communication module 101a, with the position of real-time update oneself.
System 100 by initiative recognition communication between the above-mentioned vehicle carries out carrying out between the vehicle before the in-plant interchange, at first needs to carry out the information of vehicles binding, uploads, and processes the process (as shown in Figure 2) with storage.
1, at vehicle corresponding vehicle intelligent terminal is set, open vehicle intelligent terminal, the vehicle intelligent terminal operation is carried out the equipment unique identifier (UDID that the conversion of MD5 code extracts intelligent terminal with its MAC Address, Unique Device Identifier) as the sign to each equipment, then inputted model and the license plate number information of intelligent terminal place vehicle by the user, upload to remote server with UDID by 3G network, the binding of realization equipment and vehicle.
2, open the GPS navigation system of vehicle intelligent terminal, obtain the GPS locating information, and every the one very short period (such as 2s) just latitude and longitude information that the GPS locating information is corresponding and the UDID of vehicle intelligent terminal together upload to remote server, guarantee that the vehicle position information on the remote server all is real-time update, realize simultaneously equipment, vehicle is corresponding one by one with the position.
3, remote server is received the UDID that all vehicles are uploaded, and after information of vehicles and the positional information, take each UDID as clauses and subclauses data is stored in the database.When uploading different information of vehicles or positional information for same UDID, original clauses and subclauses are upgraded, guaranteed that vehicle that each equipment is corresponding and the positional information of vehicle are up-to-date.
After finishing the precondition that realizes closely exchanging between vehicle by above-mentioned steps, the process that exchanges between the vehicle following (referring to Fig. 3).For ease of narration, setting vehicle A is the vehicle that active request exchanges communication; Vehicle B is for receiving the vehicle (vehicle namely to be communicated by letter) that exchanges communication.
1, vehicle A at first sends the request of obtaining surrounding vehicles information to remote server by the vehicle intelligent terminal on it, the ultimate range Max that comprises the up-to-date positional information of vehicle A self in this solicited message and need to get access to information of vehicles.
2, remote server is identified calculating according to the latest position information that sends other all vehicle intelligent terminals of storing in the up-to-date positional information of vehicle intelligent terminal self, ultimate range that needs get access to information of vehicles and the remote server in the solicited message, obtain the information of satisfactory all vehicle intelligent terminals, and this information is reached the transmission vehicle intelligent terminal.Its specific implementation is crossed into as follows:
1) remote server is decoded to the solicited message that receives, and proposes positional information (being longitude, latitude value) and the ultimate range Max of vehicle A from this solicited message;
2) latitude and longitude value of the online vehicle intelligent terminal of up-to-date all that upgrade place vehicle in the reading database, and calculate with the latitude and longitude value of vehicle A respectively, draw both distance less than the information of vehicles of Max.Calculation procedure is as follows:
A. because the every once distance of correspondence of longitude is fixed, calculate first the distance that two cars differs at longitude, if this distance has surpassed ultimate range Max, then skip.
If b. less than Max, then carry out accurately distance calculating by longitude and latitude again, computing formula is
(α wherein
1, β
1), (α
2, β
2) be respectively the latitude and longitude coordinates of two vehicle intelligent terminal place vehicle correspondence positions, α
1, α
2Longitude coordinate, α
1, α
2∈ [π, π], β
1, β
2Latitude coordinate, β
1, β
2∈ [pi/2, pi/2].
3) in the reading database with vehicle license plate number, the UDID of vehicle A distance less than the vehicle of Max, and form an array take each car as clauses and subclauses and return to vehicle intelligent terminal on the vehicle A.
3, the vehicle intelligent terminal on the vehicle A is after receiving the remote server return information, the content of array and be presented on the vehicle intelligent terminal by the form of tabulation in the information extraction is such as the UDID that shows vehicle license plate number, this vehicle vehicle intelligent terminal, distance etc.The user manually selects to carry out the vehicle B of information interchange, input characters or speech message in the dialog box that ejects.Wherein the input of speech message is by the microphone of intelligent terminal the user to be recorded, and recording file is stored temporarily, is converted into binary data format, and word message is then directly stored with textual form.After the user finishes the input of message or records, add vehicle B the UDID of corresponding vehicle intelligent terminal and self vehicle intelligent terminal, form corresponding transmission information and together send to server.
4, remote server receive and store car A on the information that sends of vehicle intelligent terminal, and according to the UDID of the corresponding vehicle intelligent terminal of vehicle B in the information, this message is sent to the corresponding vehicle intelligent terminal of vehicle B.Its concrete implementation is as follows:
1) remote server extracts to receive and sends UDID corresponding to information vehicle A, corresponding UDID and the message content of reception information vehicle B in the information, if message content is speech message, its binary data is converted into document form temporarily is stored in the remote server, and form corresponding URL.
2) from database, read its vehicle license plate number information (sending the information of vehicles of information vehicle) according to UDID corresponding to transmission information vehicle A that proposes, and the UDID corresponding with the reception information vehicle B that from information, extracts and URL or the word message content of storage of voice messages, deposit in the message table in the database as clauses and subclauses, the UDID that wherein vehicle B is corresponding is the message destination address field (DAF).
3) remote server is when the equipment unique identifier of uploading in real time according to the corresponding vehicle intelligent terminal of vehicle B and positional information are upgraded corresponding vehicle position information (being the positional information of vehicle intelligent terminal), remote server can keep being connected with the TCP of this vehicle intelligent terminal after reading positional information, and whether the equipment unique identifier that receives vehicle intelligent terminal arranged according to the message destination address field (DAF) in the continuous Query Database message table of UDID corresponding to vehicle B, if inquire, then read text message or the speech message URL of place clauses and subclauses, if speech message, then read voice messaging according to URL and be converted into binary data format, be pushed on the vehicle intelligent terminal of vehicle B together with the information of vehicles of the vehicle A in these clauses and subclauses.
Remote server carries out message push principle process following (referring to Fig. 4) in the present invention:
1) because institute's remote server needs constantly to upgrade all vehicle position informations (being the positional information of vehicle intelligent terminal), so that the vehicle position information that keeps existing in its database is up-to-date positional information.So all vehicle intelligent terminals will connect with remote server, and constantly upload the positional information of own UDID and place vehicle (being self) to remote server when operation;
2) remote server can keep being connected with the TCP of this intelligent terminal after reading positional information, and according to the message destination address field (DAF) in the continuous Query Database message table of UDID whether this UDID is arranged;
3) if having, remote server reads message content and pushes in the past according to the equipment unique identifier that receives vehicle intelligent terminal together with the information of vehicles of storing in these clauses and subclauses in the database message table, and disconnects; If no, after the time of implementation surpasses T, also can disconnect and being connected of vehicle intelligent terminal.Simultaneously, when vehicle intelligent terminal is received data or asked unsuccessfully, can rebulid immediately and being connected of server, and the next circulation of beginning.Like this, just can guarantee when discovering server has message to pass to intelligent terminal, can push in real time.
5, the vehicle intelligent terminal that vehicle B is corresponding reads message content and information of vehicles after receiving PUSH message.If word message, the then direct information of vehicles of display message content and the information of transmission vehicle on screen; If speech message, at the information of vehicles of screen demonstration transmission information vehicle, speech message play-overs out.
The upper personnel of vehicle B can reply by vehicle intelligent terminal after knowing relevant information, specifically can adopt above-mentioned steps (3) to step (5) to realize the answer of message, and its running is same as described above, is not given unnecessary details herein.
Thus, the present invention can realize closely the initiative recognition between the vehicle and carry out point-to-point information interchange between vehicle by above-mentioned technology.By real-time point-to-point interchange, can be at other vehicles to there being the safety problem vehicle in time to remind the generation that can effectively avoid traffic accident; Simultaneously can inform the road traffic congestion by other vehicles, can avoid traffic congestion, further alleviate traffic pressure etc.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. the system that initiative recognition is communicated by letter between the vehicle is characterized in that described system comprises:
Vehicle intelligent terminal, described vehicle intelligent terminal are used for sending to remote server the information of information and the transmission of receiving remote server; Be provided with the GPS navigation system in the described vehicle intelligent terminal, described vehicle intelligent terminal will reach remote server by wireless mode, the binding of realization equipment and vehicle together with the information of vehicles of place vehicle as the equipment unique identifier of self identification; GPS navigation system Real-time Obtaining GPS locating information in the described vehicle intelligent terminal, and locating information uploaded to remote server together with the equipment unique identifier, with the positional information of real-time update equipment;
Remote server, described server are received the equipment unique identifier that all vehicle intelligent terminals are uploaded, and after information of vehicles and the positional information, take each equipment unique identifier as clauses and subclauses data are stored in the database; Described remote server receives and processes the information that vehicle intelligent terminal sends, and result is sent to corresponding vehicle intelligent terminal.
2. the system that initiative recognition is communicated by letter between the vehicle according to claim 1, it is characterized in that, described vehicle intelligent terminal has corresponding MAC Address, and the MAC Address of self is carried out MD5 code conversion extracts the equipment unique identifier of intelligent terminal as the sign of self.
3. the method for initiative recognition communication between the vehicle is characterized in that described method comprises the steps:
(1) the transmission vehicle intelligent terminal of request communication at first sends the request of obtaining surrounding vehicles information to remote server, includes in this solicited message to send the up-to-date positional information of vehicle intelligent terminal self and the ultimate range that need to get access to information of vehicles;
(2) remote server is identified calculating according to the latest position information that sends other all vehicle intelligent terminals of storing in the up-to-date positional information of vehicle intelligent terminal self, ultimate range that needs get access to information of vehicles and the remote server in the solicited message, obtain the information of satisfactory all vehicle intelligent terminals, and this information is reached the transmission vehicle intelligent terminal;
(3) send vehicle intelligent terminal behind acquired information, the reception vehicle intelligent terminal that selection need to communicate, generate the message data that is used for communication, and be sent to remote server together with the equipment unique identifier of selected reception vehicle intelligent terminal and transmission vehicle intelligent terminal;
(4) information that remote server receives and storage transmission vehicle intelligent terminal sends, and according to the equipment unique identifier that receives vehicle intelligent terminal in the information, this message is sent to the reception vehicle intelligent terminal;
(5) receive vehicle intelligent terminal and receive and the display message content, finish once communication.
4. the method that initiative recognition is communicated by letter between the vehicle according to claim 3, it is characterized in that, front all vehicle intelligent terminals of described step (1) send information of vehicles and the equipment unique identifier of place vehicle to remote server, remote server is finished the binding of vehicle intelligent terminal and place vehicle with equipment unique identifier and information of vehicles corresponding stored.
5. the method that initiative recognition is communicated by letter between the vehicle according to claim 3, it is characterized in that, comprise also in the described method that vehicle intelligent terminal sends the step of the positional information that includes the equipment unique identifier in real time to remote server, and remote server is according to the step of equipment unique identifier real-time update correspondence position information.
6. the method that initiative recognition is communicated by letter between the vehicle according to claim 3 is characterized in that the implementation procedure of described step (2) is as follows:
(21) remote server extracts the positional information of the transmission vehicle intelligent terminal in the solicited message and the ultimate range Max that need to get access to information of vehicles;
(22) positional information of all online vehicle intelligent terminals in the reading database, and the positional information corresponding with sending vehicle intelligent terminal calculated respectively, draws distance less than information of vehicles corresponding to vehicle intelligent terminal of obtaining information ultimate range Max.
7. the method that initiative recognition is communicated by letter between the vehicle according to claim 6 is characterized in that described step (22) computational process is as follows:
(221) at first calculate the distance that two vehicle intelligent terminal correspondence positions differ at longitude, if the distance that differs has surpassed ultimate range Max, then skip;
(222) if less than Max, then carry out accurately distance calculating by longitude and latitude again, computing formula is
(α wherein
1, β
1), (α
2, β
2) be respectively the latitude and longitude coordinates of two vehicle intelligent terminal correspondence positions, α
1, α
2Longitude coordinate, α
1, α
2∈ [π, π], β
1, β
2Latitude coordinate, β
1, β
2∈ [pi/2, pi/2];
(223) read after step (222) is calculated apart from less than the vehicle intelligent terminal of ultimate range Max corresponding information of vehicles and equipment unique identifier.
8. the method that initiative recognition is communicated by letter between the vehicle according to claim 3 is characterized in that the implementation procedure of described step (4) is as follows:
(41) send the equipment unique identifier of vehicle intelligent terminal, the message content that receives the equipment unique identifier of vehicle intelligent terminal and be used for communicating by letter in the remote server information extraction, and temporary transient storing message content;
(42) from database, read the information of vehicles of its corresponding vehicle according to the equipment unique identifier that sends vehicle intelligent terminal, and deposit in the message table in the database with the equipment unique identifier that receives vehicle intelligent terminal and message content, and take the equipment unique identifier that receives vehicle intelligent terminal as the message destination address field (DAF);
(43) remote server is when the equipment unique identifier of uploading in real time according to all vehicle intelligent terminals and positional information are upgraded corresponding vehicle intelligent terminal positional information, remote server can keep being connected with the TCP of this vehicle intelligent terminal after reading positional information, and according to the message destination address field (DAF) in the continuous Query Database message table of its corresponding equipment unique identifier whether the equipment unique identifier that receives vehicle intelligent terminal is arranged;
(44) if having, remote server reads message content and pushes in the past according to the equipment unique identifier that receives vehicle intelligent terminal together with the information of vehicles of storing in these clauses and subclauses in the database message table, and disconnects; If no, be connected with vehicle intelligent terminal above disconnecting behind the certain hour when the time of implementation.
9. the method for initiative recognition communication between the vehicle according to claim 3 is characterized in that described method also comprises the step that receives the vehicle intelligent terminal return information, and this step adopts the method for step (4)-(5) to realize.
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| CN2012103569570A CN102868970A (en) | 2012-09-21 | 2012-09-21 | System and method for actively identifying and communicating with vehicles |
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