CN101471935B - Data transmission method and system as well as terminal equipment and server - Google Patents
Data transmission method and system as well as terminal equipment and server Download PDFInfo
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- CN101471935B CN101471935B CN2007103081509A CN200710308150A CN101471935B CN 101471935 B CN101471935 B CN 101471935B CN 2007103081509 A CN2007103081509 A CN 2007103081509A CN 200710308150 A CN200710308150 A CN 200710308150A CN 101471935 B CN101471935 B CN 101471935B
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- terminal equipment
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- driving information
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a data transmission method and a system, as well as a terminal device and a server. The method comprises the following steps: sending the first driving information of the terminal device to a server; calculating the condition of sending second driving information from the terminal device to the server based on the first driving information; sending the condition to the terminal device; and sending the second driving information of the terminal device to the server when the terminal device satisfies the condition. By utilizing the data transmission method and the system, due to only transmitting position data at an intersection on a driving road, not transmitting the position data of each position point on a real-time basis, the data transmission quantity is reduced, so that the transmission cost and the electric power consumption of a terminal are reduced.
Description
Technical field
The present invention relates to data-transmission technology, be specifically related to a kind of method and system and terminal equipment and server from terminal equipment to the location server the transmission of data.
Background technology
At present some application are from terminal equipment its position data to be transferred to location server, and location server is responsible for position real-time rendering with terminal equipment on screen.There have been some technology can realize above-mentioned position data real-time Transmission function, such as certain automobile in motion process by the GPS image data, then by communication equipment coordinate points is issued location server, location server will be made real-time route according to track.
But this scheme only actually is the process that data gather, and in order to reach real-time effect, needs communication equipment ceaselessly to send coordinate points to location server.To cause like this and redundant data volume, redundant data volume causes direct result to be exactly, and expense increases in the time of the power consumption of terminal equipment and transmission data.Therefore, need a kind of a large amount of position data transmission technology that can not expend.
Summary of the invention
The purpose of this invention is to provide a kind of method and system and terminal equipment and server from terminal equipment to the server the transmission of data, thereby it reaches the minimizing of the data volume of transmission by reducing the number of transmissions.Along with transmitted data amount reduces, the power consumption in the time of transmission and transmission cost can descend naturally.
In one aspect of the invention, proposed a kind of data transmission method, comprised step: the first driving information of terminal equipment has been sent to server; The second driving information is sent to the condition of server from terminal equipment based on described first information calculations of travelling; This condition is sent to terminal equipment; And when terminal equipment satisfies this condition, the second driving information of terminal equipment is sent to server.
In another aspect of this invention, proposed a kind of data transfer server, having comprised: receiving element, the first driving information of receiving terminal apparatus; Computing unit sends the condition of the second driving information by using the first information calculations terminal equipment that travels; And output unit, export this condition.
In still another aspect of the invention, proposed a kind of terminal equipment, having comprised: the position acquisition unit, obtain the first driving information of terminal equipment; Computing unit sends to the second driving information the condition of server according to first information calculations of travelling from terminal equipment; And transmitting element, the second driving information with terminal equipment when terminal equipment satisfies this condition sends to server.
Proposed a kind of data transmission system more on the one hand of the present invention, having comprised: terminal equipment, the first driving information of transmitting terminal equipment; And server, comprising: receiving element, the first driving information of receiving terminal apparatus; Computing unit sends the condition of the second driving information by using the first information calculations terminal equipment that travels; And output unit, export this condition.
Utilize data transmission method of the present invention and system, because fork point transmission location data on travel only, rather than the position data of each location point of real-time Transmission, so reduced volume of transmitted data, thus the expense of transmission and the power consumption of terminal reduced.
Description of drawings
After the detailed description and accompanying drawing below having read, these and other objects and advantages of the present invention will become clearer, in the accompanying drawings:
Fig. 1 shows the schematic diagram according to the data transmission system of the embodiment of the invention.
Fig. 2 is the structured flowchart of the terminal equipment that carries on the automobile according to the first embodiment.
Fig. 3 is the structured flowchart according to the server of the first embodiment.
Fig. 4 is the detail flowchart according to the data transmission method of first embodiment of the invention.
Fig. 5 is the structured flowchart according to the terminal equipment that carries at automobile of second embodiment of the invention.
Fig. 6 is the structured flowchart according to the server of second embodiment of the invention.
Embodiment
The below's contrast accompanying drawing describes the specific embodiment of the present invention in detail.
[the first embodiment]
Fig. 1 shows the schematic diagram according to the data transmission system of the embodiment of the invention.Among Fig. 1, thick black line represents it is the route that automobile 1 is being advanced, when automobile 1 in traveling process, Yi Bian receive the coordinate data that satellite 6 is sent, and data communication device is crossed network 4 send to server 5, server 5 will draw according to coordinate data the track of automobile.
Under normal conditions, an automobile moves in the expressway, and what it can be real-time beams back server with data, and server will be drawn out the real-time track of this car.But in the situation that vehicle travels in the expressway, if not running into outlet, this car possibility is not left the expressway.If in this case also with the position data real-time Transmission of each location point to server, a large amount of redundancies will be produced, this is because in fact need not transmit to the position in next nearest exit in the automobile current location, and server can be according to the approximate location of speed and direction prediction automobile and roughly arrived the time that the next one exports.
As mentioned above, automobile 1 needn't send data in real time.Because in server 5, store the coordinate points of road, and an automobile is to leave travel route less than branch road point (2,3 position among Fig. 1) in certain bar route running, actual transmissions is in fact as long as get final product in branch road point (2,3 position among Fig. 1) transmission so.
Fig. 2 is the structured flowchart of the terminal equipment that carries on the automobile according to first embodiment of the invention.As shown in Figure 2, terminal equipment comprises: communication unit 15, can communicate by letter with server 5 by for example cordless communication network 4 of GPRS and so on, and send data to it, perhaps receive the data from server 5; GPS receiver 16, it receives the information that comprises longitude, latitude and so on from satellite 6, and calculates speed and/or direction, forms position data, and this position data will send to server 5 by communication unit 15; Operating unit 17, for example keyboard or mouse and other input equipment make things convenient for user input instruction or operate this terminal equipment; Memory cell 14, it temporarily stores the position data that GPS receiver 16 receives, and other data; Controller 13, it controls each part of whole terminal equipment; Display device 12 for example is LCD display; And bus 11, connect each above-mentioned part.
Fig. 3 is the structured flowchart according to the server of second embodiment of the invention.As shown in Figure 3, server 5 comprises: Transmit-Receive Unit 51, for example receive the position data of uploading from terminal equipment by GPRS network, and perhaps send other data that server 5 issues to terminal equipment; Electronic map database 53 stores the electronic chart of the road information that comprises at least each bar road; Computing unit 52, the position data of the terminal equipment that it receives based on Transmit-Receive Unit 51, search is along the position of next fork point of travel route in electronic chart, and this position will send to terminal equipment by Transmit-Receive Unit 51, as the reference position point of transfer of data next time; Data storage cell 54, its temporary transient storage is from data or other data of terminal equipment; And drawing unit 55, according to the next driving trace of drawing this automobile at screen last year of the position data on the actual travel route of computing unit 52 resulting terminal equipments.
The below's contrast accompanying drawing 4 describes above-mentioned terminal equipment and the specific operation process of server in detail.Fig. 4 is the detail flowchart according to the data transmission method of first embodiment of the invention.
As shown in Figure 4, object, automobile for example, entrained terminal equipment for example is counted as client, and server 5 is counted as server end.At first, at step S11, the GPS receiver 16 of terminal equipment obtains current location information, for example comprises coordinate points information P1, writing time T1, speed of a motor vehicle S1, the travel direction D of longitude and latitude.Then by communication unit 15 this positional information is sent to server 5 at step S12.
At step S13, the Transmit-Receive Unit 51 of server 5 receives this positional information, and utilized the electronic chart of storage in the electronic map database 53 by computing unit 52, according to coordinate points information P1 and travel direction D, calculate a nearest branch road point (outlet) P2 on the travel direction, again according to speed of a motor vehicle S1, calculate automobile to the time T 2 of P2, and judge that at step S14 whether this time T 2 is less than predetermined threshold value, if be no, then at step S15 this fork point P2 and time T 2 are returned to client, tell simultaneously client, transmission that can the stop position data.If the T2 time is too short, then client still continues to send position data in real time.
The following describes the process that computing unit 52 calculates fork point.In electronic map database, route data all is to deposit with following form:
＜road ID, longitude 1, latitude 1.。。>
＜road ID, longitude 2, latitude 2.。。>
＜road ID, longitude 3, latitude 3.。。>
＜road ID, longitude 4, latitude 4.。。>
＜road ID, longitude 5, latitude 5.。。>
＜road ID, longitude 6, latitude 6.。。>
＜road ID, longitude 7, latitude 7.。。>
Identical ID represents the same road.Suppose that Liang Tiaolu is arranged (supposing it is 1,2), above data can be write as following form.
<ID1，x
1，y
1>，<ID1，x
2，y
2>...，<ID1，x
n，y
n>
<ID2，x
1，y
1>，<ID1，x
2，y
2>...，<ID1，x
m，y
m>
Like this, whether whether Liang Tiaolu have the problem of intersection point by intersection point with regard to the line segment that converts two consecutive points to and form, namely among the ID1, and line segment (X
i, Y
i) (X
I+1, Y
I+1) (1＜=i＜n) wherein, and among the ID2, line segment (X
j, Y
j) (X
J+1, Y
J+1) (wherein whether 1＜=i＜m) has the intersection point problem.This can calculate with the principle of find intersection in the analytic geometry.
But in order to improve the retrieval rate of server, can calculate first all intersection points, intersection point is stored in the electronic map database 53, need only inquiry when needing.
In addition, come to ask the needs automobile to arrive in next fork band the time T 2 that needs also travel according to the position of position at that time, next fork in the road and speed according to following formula (1):
If the description on road is＜ID x
1, y
1,＜ID, x
2, y
2...,＜ID, x
n, y
n, because the position of next fork in the road necessarily not on the way, is made as＜ID x
m, y
m(m＜=n), speed is S, arrives so the time T 2 that next fork in the road needs:
At step S16, receive fork point P2 and time T 2 from server 5 by communication unit 15, calculate a neighborhood by controller 13 according to fork point P2, one of this neighborhood is centered by P2, take 50 squares as the length of side.Like this, at step S17, automobile continues to travel, and does not send position data, but records the position data on the travel route, is stored in the memory cell 14.At step S18, controller 13 judges whether current location point is among the neighborhood of above-mentioned calculating.
If automobile has entered into the neighborhood of fork point P2, then send new coordinate points P2 to server 5 at step S27 controller 13 by communication unit 15.Server 5 repeats above action.
If automobile does not enter this neighborhood, at step S19, whether controller 13 judges the current time to the T2 time of advent, if also there is not the T2 time of advent, then flow process turns back to step S17, continues above-mentioned action.But, if the time of advent T2, then at step S20, controller 13 is obtained the current location information that GPS receiver 16 produces, for example coordinate points information P3, time T 23 and speed S3, and at step S21, above-mentioned positional information is sent to server 5, tell the coordinate that server 5 is present.At this moment may have two kinds of situations occurs.
I) automobile for some reason (such as on the way having repaiied a little while car) does not arrive P2 at T2 in the time, but automobile still travels at predetermined road, in this case, repeats above step and gets final product.
II) another kind of situation, may be that the road data renewal is untimely, there is new turnout to occur, client is from new turnout to other place, judge after step S22 server 5 is based on up-to-date positional information calculation whether up-to-date coordinate points P3 departs from this route, if the coordinate points P3 of clients report departed from road far (having gone out from road), server 5 transmits P1 to the data of P3 again in step S23 notice client so.If but do not depart from this route, then at step S28, server 5 records this position data in data storage cell 54.
At step S24, client is delivered to server 5 to the data packing of P3 and at step S25 with the position data of packing with P1, and server 5 is drawn the driving trace of automobile according to new position data at step S26.
[the second embodiment]
Fig. 5 and Fig. 6 show according to the terminal equipment of second embodiment of the invention and the structured flowchart of server.
As shown in Figure 5, the terminal equipment of the second embodiment possesses computing unit 20 and electronic map database 19.
As shown in Figure 6, the server of the second facility example comprises Transmit-Receive Unit 51, data storage cell 54 and drawing unit 55.
In other words, according to second embodiment of the invention, terminal equipment side realized with the first embodiment in the similar function of computing function of server, and the server of the second embodiment is implemented as from the terminal equipment receive data, send data to terminal equipment, and draw the driving trace of terminal equipment.
In view of the function class of the computing unit 52 in the server of the function of computing unit 20 and electronic map database 19 and the first embodiment and electronic map database 53 seemingly, therefore omitted the detailed description to computing unit 20 and electronic map database 19.
Can carry out various concrete enforcements or change to above-mentioned content and do not depart from essence of the present invention and marrow.The above embodiments are intended to illustration the present invention, but not want to limit the scope of the invention.Scope of the present invention by appended claim but not embodiment limit.In the claim scope and the various modifications of carrying out in the meaning of claim of the present invention and the equivalency range be regarded as among scope of the present invention.
Claims (16)
1. data transmission method comprises step:
The first driving information of terminal equipment is sent to server;
Based on described first information calculations of travelling the second driving information is sent to the condition of server from terminal equipment, this condition comprises the precalculated position, and calculates this precalculated position by the crosspoint that server calculates travel route and another route;
This condition is sent to terminal equipment; And
The second driving information with terminal equipment when terminal equipment enters preset range around this precalculated position sends to server.
2. data transmission method as claimed in claim 1, wherein the first and second driving informations comprise longitude, latitude, speed and the direction of terminal equipment.
3. data transmission method as claimed in claim 1, wherein this condition also comprises the time of calculating based on the first driving information.
4. data transmission method as claimed in claim 3, wherein when this time representation terminal equipment enters the preset range around the precalculated position.
5. data transmission method as claimed in claim 4, if wherein terminal equipment failed to enter this preset range before this time, then terminal equipment sends the second driving information.
6. data transmission method as claimed in claim 4, if wherein should the time early than a predetermined time, then terminal equipment sends driving information continuously.
7. data transmission method as claimed in claim 4, if wherein terminal equipment failed to enter this preset range before this time, when then arriving this time, terminal equipment sends the second driving information.
8. data transmission method as claimed in claim 2, wherein said longitude, latitude and speed are obtained by the GPS receiver of terminal equipment.
9. data transmission method as claimed in claim 1, wherein this driving information sends by wireless network.
10. data transfer server comprises:
Receiving element, the first driving information of receiving terminal apparatus;
Computing unit sends the condition of the second driving information by using the first information calculations terminal equipment that travels, and this condition comprises the precalculated position; And
Output unit is exported this condition;
Wherein this computing unit calculates this precalculated position by the crosspoint of calculating travel route and another route.
11. data transfer server as claimed in claim 10, wherein this condition also comprised by computing unit based on the first time of travelling information calculations.
12. data transfer server as claimed in claim 11, wherein when this time representation terminal equipment enters precalculated position preset range on every side.
13. a terminal equipment comprises:
The position acquisition unit obtains the first driving information of terminal equipment;
Computing unit sends to the condition of server with the second driving information from terminal equipment according to first information calculations of travelling, and this condition comprises the precalculated position; And
Transmitting element, the second driving information with terminal equipment when terminal equipment satisfies this condition sends to server;
Wherein computing unit calculates this precalculated position by the crosspoint of calculating travel route and another route.
14. terminal equipment as claimed in claim 13, wherein this condition also comprised by computing unit based on the first time of travelling information calculations.
15. terminal equipment as claimed in claim 14, wherein when this time representation terminal equipment enters precalculated position preset range on every side.
16. a data transmission system comprises:
Terminal equipment, the first driving information of transmitting terminal equipment; And
Server comprises:
Receiving element, the first driving information of receiving terminal apparatus;
Computing unit sends the condition of the second driving information by using the first information calculations terminal equipment that travels, and this condition comprises the precalculated position; And
Output unit is exported this condition;
Wherein computing unit calculates this precalculated position by the crosspoint of calculating travel route and another route.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103081509A CN101471935B (en) | 2007-12-29 | 2007-12-29 | Data transmission method and system as well as terminal equipment and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103081509A CN101471935B (en) | 2007-12-29 | 2007-12-29 | Data transmission method and system as well as terminal equipment and server |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101471935A CN101471935A (en) | 2009-07-01 |
| CN101471935B true CN101471935B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103081509A Expired - Fee Related CN101471935B (en) | 2007-12-29 | 2007-12-29 | Data transmission method and system as well as terminal equipment and server |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012222931A1 (en) * | 2012-12-12 | 2014-06-12 | Robert Bosch Gmbh | Method for determining e.g. position and/or type of road sign, involves reading set of records, where each record comprises positional data representing different geographical positions, transaction data and vehicle specifications |
| CN104765781A (en) * | 2015-03-20 | 2015-07-08 | 四川九洲电器集团有限责任公司 | Route acquiring system and method |
| CN112446536A (en) * | 2020-11-19 | 2021-03-05 | 海南省林业科学研究院(海南省红树林研究院) | Ecological environment monitoring gridding system based on big data architecture and monitoring method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373426A (en) * | 2001-02-28 | 2002-10-09 | 株式会社Ntt都科摩 | Position managing method and system, and position information submitting system |
| CN1540288A (en) * | 2003-04-24 | 2004-10-27 | ���ǵ�����ʽ���� | Device and method for calculating route from affset position to primary route, and its guide system |
-
2007
- 2007-12-29 CN CN2007103081509A patent/CN101471935B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373426A (en) * | 2001-02-28 | 2002-10-09 | 株式会社Ntt都科摩 | Position managing method and system, and position information submitting system |
| CN1540288A (en) * | 2003-04-24 | 2004-10-27 | ���ǵ�����ʽ���� | Device and method for calculating route from affset position to primary route, and its guide system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-220262A 2004.08.05 |
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| CN101471935A (en) | 2009-07-01 |
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