CN101471935A - 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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- CN101471935A CN101471935A CNA2007103081509A CN200710308150A CN101471935A CN 101471935 A CN101471935 A CN 101471935A CN A2007103081509 A CNA2007103081509 A CN A2007103081509A CN 200710308150 A CN200710308150 A CN 200710308150A CN 101471935 A CN101471935 A CN 101471935A
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- terminal equipment
- driving information
- server
- data transmission
- transmission method
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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 from method and system and the terminal equipment and the server of terminal equipment to location server transmission data.
Background technology
Some application at present 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, by communication equipment coordinate points is issued location server then, location server will be made real-time route according to track.
But this scheme only actually is the process that data are gathered, and in order to reach real-time effect, needs transmission coordinate points that communication equipment do not stop 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 from method and system and terminal equipment and the server of terminal equipment to the Server Transport data, thereby it is by reducing the minimizing that the number of transmissions reaches data quantity transmitted.Along with transmitted data amount reduces, 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: first driving information of terminal equipment has been sent to server; Calculate the condition that second driving information is sent to server from terminal equipment based on described first driving information; This condition is sent to terminal equipment; And when terminal equipment satisfies this condition, 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, first driving information of receiving terminal apparatus; Computing unit sends the condition of second driving information by using the first driving information computing terminal equipment; And output unit, export this condition.
In still another aspect of the invention, proposed a kind of terminal equipment, having comprised: the position acquiring unit, obtain first driving information of terminal equipment; Computing unit calculates the condition that second driving information is sent to server from terminal equipment according to first driving information; And transmitting element, 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, first driving information of transmission terminal equipment; And server, comprising: receiving element, first driving information of receiving terminal apparatus; Computing unit sends the condition of second driving information by using the first driving information computing terminal equipment; 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
Read after following detailed description and the accompanying drawing, these and other purpose of the present invention and advantage 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 first embodiment.
Fig. 3 is the structured flowchart according to the server of 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 on 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 contrast accompanying drawing describes the specific embodiment of the present invention in detail below.
[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 are sent to server 5 by network 4, and server 5 will be according to the draw track of automobile of coordinate data.
Under normal conditions, an automobile moves on 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 under the situation of travelling on the expressway, if not running into outlet, this car possibility is not left the expressway at vehicle.If also give server in this case with the position data real-time Transmission of each location point, a large amount of redundancies will be produced, this is because need not transmit in fact 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 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 is received, and other data; Controller 13, each part of its control whole terminal equipment; Display device 12 for example is a 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 receives the position data of uploading from terminal equipment, perhaps other data that issue to terminal equipment send server 5 by GPRS network; Electronic map database 53 stores the electronic chart of the road information that comprises each bar road at least; Computing unit 52, the position data of the terminal equipment that it is received 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.
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.By communication unit 15 this positional information is sent to server 5 at step S12 then.
At step S13, the Transmit-Receive Unit 51 of server 5 receives this positional information, and utilize 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 the time T 2 of automobile to P2, and judge that at step S14 whether this time T 2 is less than predetermined threshold value, if for denying, then give client with 2 passbacks of this fork point P2 and time T, tell client simultaneously, transmission that can the stop position data at step S15.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 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, promptly among the ID1, and line segment (X
i, Y
i) (X
I+1, Y
I+1) (1＜=i＜n) and among the ID2 wherein, 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 all intersection points earlier, 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 following formula (1) according to the position of position at that time, next fork in the road and speed:
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 the time T 2 that next fork in the road needs so:
At step S16, fork point P2 and time T 2 by communication unit 15 receives from server 5 calculate a neighborhood by controller 13 according to fork point P2, and one of this neighborhood is the center with P2, is a square of the length of side with 50.Like this, at step S17, automobile continues to travel, and does not send position data, but notes 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 aforementioned calculation.
If automobile has entered into the neighborhood of fork point P2, then send new coordinate points P2 to server 5 by communication unit 15 at step S27 controller 13.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 takes place.
I) automobile (such as on the way having repaiied car a little while) does not for some reason arrive P2 at T2 in the time, but automobile in this case, repeats above step and gets final product still in predetermined travels down.
II) another kind of situation, may be that the road data renewal is untimely, there is new turnout to occur, client from new turnout to other place, calculate the back at step S22 server 5 based on latest position information and judge 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 writes down this position data in data storage cell 54.
At step S24, client is delivered to server 5 to the packing data 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.
[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 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 first embodiment in the similar function of computing function of server, and the server of second embodiment is implemented as from terminal equipment reception data, send data to terminal equipment, and draw the driving trace of terminal equipment.
In view of the function class of computing unit 52 in the server of the function of computing unit 20 and electronic map database 19 and first embodiment and electronic map database 53 seemingly, therefore omitted 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 (26)
1, a kind of data transmission method comprises step:
First driving information of terminal equipment is sent to server;
Calculate the condition that second driving information is sent to server from terminal equipment based on described first driving information;
This condition is sent to terminal equipment; And
Second driving information with terminal equipment when terminal equipment satisfies this condition sends to server.
2, data transmission method as claimed in claim 1, wherein 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 comprises the precalculated position.
4, data transmission method as claimed in claim 3, wherein when terminal equipment entered preset range around this precalculated position, terminal equipment sent to server with second driving information.
5, data transmission method as claimed in claim 1, wherein this condition comprises the time of being calculated based on first driving information.
6, data transmission method as claimed in claim 5, wherein when this time representation terminal equipment enters precalculated position preset range on every side.
7, data transmission method as claimed in claim 6, if wherein terminal equipment failed to enter this preset range before this time, then terminal equipment sends second driving information.
8, data transmission method as claimed in claim 6, if wherein should the time early than a preset time, then terminal equipment sends driving information continuously.
9, data transmission method as claimed in claim 6, if wherein terminal equipment failed to enter this preset range before this time, when then arriving this time, terminal equipment sends second driving information.
10, data transmission method as claimed in claim 2, wherein said longitude, latitude and speed are obtained by the GPS receiver of terminal equipment.
11, data transmission method as claimed in claim 3, wherein server calculates this precalculated position by the crosspoint of calculating travel route and another route.
12, data transmission method as claimed in claim 3, wherein server is retrieved this precalculated position according to this driving information from the database that is pre-created.
13, data transmission method as claimed in claim 1, wherein this driving information sends by wireless network.
14, a kind of data transfer server comprises:
Receiving element, first driving information of receiving terminal apparatus;
Computing unit sends the condition of second driving information by using the first driving information computing terminal equipment; And
Output unit is exported this condition.
15, data transfer server as claimed in claim 14, wherein this condition comprises the precalculated position.
16, data transfer server as claimed in claim 15, wherein this computing unit calculates this precalculated position by the crosspoint of calculating travel route and another route.
17, data transfer server as claimed in claim 15, wherein computing unit is retrieved this precalculated position according to this driving information from the database that is pre-created.
18, data transfer server as claimed in claim 14, wherein this condition comprises the time of being calculated based on first driving information by computing unit.
19, data transfer server as claimed in claim 18, wherein when this time representation terminal equipment enters precalculated position preset range on every side.
20, a kind of terminal equipment comprises:
The position acquiring unit obtains first driving information of terminal equipment;
Computing unit calculates the condition that second driving information is sent to server from terminal equipment according to first driving information; And
Transmitting element, second driving information with terminal equipment when terminal equipment satisfies this condition sends to server.
21, terminal equipment as claimed in claim 20, wherein this condition comprises the precalculated position.
22, terminal equipment as claimed in claim 21, wherein computing unit calculates this precalculated position by the crosspoint of calculating travel route and another route.
23, terminal equipment as claimed in claim 21, wherein computing unit is retrieved this precalculated position according to this driving information from the database that is pre-created.
24, terminal equipment as claimed in claim 20, wherein this condition comprises the time of being calculated based on first driving information by computing unit.
25, terminal equipment as claimed in claim 24, wherein when this time representation terminal equipment enters precalculated position preset range on every side.
26, a kind of data transmission system comprises:
Terminal equipment, first driving information of transmission terminal equipment; And
Server comprises:
Receiving element, first driving information of receiving terminal apparatus;
Computing unit sends the condition of second driving information by using the first driving information computing terminal equipment; And
Output unit is exported this condition.
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 true CN101471935A (en) | 2009-07-01 |
| CN101471935B CN101471935B (en) | 2013-03-13 |
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ID=40829060
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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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868516A (en) * | 2012-12-12 | 2014-06-18 | 罗伯特·博世有限公司 | Method and device for determining location and/or type of road infrastructure facility |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3949902B2 (en) * | 2001-02-28 | 2007-07-25 | 株式会社エヌ・ティ・ティ・ドコモ | Location management method, communication system, and information providing system |
| KR100965656B1 (en) * | 2003-04-24 | 2010-06-23 | 삼성전자주식회사 | Re-routing apparatus and method for finding optimal paths to an original path from position detached oneself from the original path in navigation system, navigation system using the same |
-
2007
- 2007-12-29 CN CN2007103081509A patent/CN101471935B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868516A (en) * | 2012-12-12 | 2014-06-18 | 罗伯特·博世有限公司 | Method and device for determining location and/or type of road infrastructure facility |
| 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 |
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| Publication number | Publication date |
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| CN101471935B (en) | 2013-03-13 |
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Granted publication date: 20130313 Termination date: 20161229 |