CN102325002A - Method and device for positioning data compression and transmission - Google Patents
Method and device for positioning data compression and transmission Download PDFInfo
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- CN102325002A CN102325002A CN201110187053A CN201110187053A CN102325002A CN 102325002 A CN102325002 A CN 102325002A CN 201110187053 A CN201110187053 A CN 201110187053A CN 201110187053 A CN201110187053 A CN 201110187053A CN 102325002 A CN102325002 A CN 102325002A
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Abstract
The embodiment of the invention discloses a method and a device for positioning data compression and transmission, relates to the technical field of data transmission, and solves the problems of low positioning data transmission efficiency and high transmission cost in the prior art. The method comprises the following steps of: monitoring a positioning data base to judge whether the positioning data base is updated or not; if the positioning data base is updated, performing BCD (Binary-Coded Decimal) code compression on updated positioning data; calculating an error check code for the positioning data which is subjected to the BCD code compression; and transmitting the positioning data after the calculation of the error check code. The method and the device are suitable for compression and transmission of the positioning data.
Description
Technical field
The present invention relates to technical field of data transmission, particularly a kind of method and apparatus of locator data Compression and Transmission.
Background technology
In order to make urban transportation more smooth and easy, be convenient for people to trip, we need carry out urban transportation according to the urban transportation situation and induce in real time.In the process of inducing, need to gather the real-time positioning data of entire city traffic, if the locator data of gathering very little then can influence the calculating that traffic is implemented in the city, causes urban road real-time road disappearance, be unfavorable for inducing in real time of urban transportation.In order to realize that efficient, real-time urban transportation induces, we need gather a large amount of real-time positioning data and carry out the urban transportation real-time road and calculate.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
Gather a large amount of real-time positioning data and need certain network bandwidth; If the network bandwidth is limited; Then can cause the real-time positioning data that collect expired, the urban transportation real-time road that calculates with expired locator data can not truly reflect the virtual condition of urban transportation, induces in real time if these data are used for urban transportation; Then can reduce the public's the line efficiency that goes out, strengthen the public's trip cost; If increase the network bandwidth in order to transmit a large amount of real-time positioning data, then can increase the cost that urban transportation is induced in real time.
Summary of the invention
Embodiments of the invention provide a kind of method and apparatus of locator data Compression and Transmission, can insert real-time positioning data as much as possible by enough limited network bandwidths, have reduced the cost that urban transportation is induced in real time when guaranteeing the real-time positioning data validity.
The technical scheme that the embodiment of the invention adopts is:
A kind of method of locator data Compression and Transmission comprises:
Location database is monitored, judged whether said location database has renewal;
If said location database has renewal, the locator data of upgrading is carried out the BCD encoding compression;
Calculate carrying out error check code through the locator data after the BCD encoding compression;
The locator data that to pass through after error check code calculates is sent.
A kind of device of locator data Compression and Transmission comprises:
Location database is used for the store location data;
Location database is monitored module, is used for location database is monitored, and judges whether said location database has renewal;
The BCD data coding module is used for the locator data of upgrading is carried out the BCD encoding compression;
The CRC check module is used for calculating carrying out error check code through the locator data after the BCD encoding compression;
Data transmission blocks is used for the locator data after calculating through error check code is sent.
The locator data Compression and Transmission method and apparatus that the embodiment of the invention provides through location database is monitored, judges whether said location database has renewal; If said location database has renewal, the locator data of upgrading is carried out the BCD encoding compression; Calculate carrying out error check code then through the locator data after the BCD encoding compression; The locator data that to pass through at last after error check code calculates is sent.Compared with prior art, the embodiment of the invention can insert real-time positioning data as much as possible by enough limited network bandwidths, has reduced the cost that urban transportation is induced in real time when guaranteeing the real-time positioning data validity.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The method flow diagram of the locator data Compression and Transmission that Fig. 1 provides for the embodiment of the invention one;
The method flow diagram of the locator data Compression and Transmission that Fig. 2 provides for the embodiment of the invention two;
The apparatus structure sketch map of the locator data Compression and Transmission that Fig. 3, Fig. 4 provide for the embodiment of the invention three.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
For the advantage that makes technical scheme of the present invention is clearer, the present invention is elaborated below in conjunction with accompanying drawing and embodiment.
Embodiment one
Present embodiment provides a kind of method of locator data Compression and Transmission, and is as shown in Figure 1, and said method comprises:
101, location database is monitored, judged whether said location database has renewal.
102,, the locator data of upgrading is carried out the BCD encoding compression if said location database has renewal.
103, calculate carrying out error check code through the locator data after the BCD encoding compression.
104, the locator data that will pass through after error check code calculates is sent.
Wherein, said location database specifically is used to store the locator data of being uploaded in real time by GPS equipment.
Further, before said locator data to renewal is carried out the BCD encoding compression, also comprise:
Locator data to upgrading is carried out preliminary treatment.
Further, saidly the locator data of upgrading carried out preliminary treatment comprise:
The locator data of said renewal is carried out validity screen, delete invalid locator data.
The method of the locator data Compression and Transmission that the embodiment of the invention provides through location database is monitored, judges whether said location database has renewal; If said location database has renewal, the locator data of upgrading is carried out the BCD encoding compression; Calculate carrying out error check code then through the locator data after the BCD encoding compression; The locator data that to pass through at last after error check code calculates is sent.Compared with prior art, the embodiment of the invention can insert real-time positioning data as much as possible by enough limited network bandwidths, has reduced the cost that urban transportation is induced in real time when guaranteeing the real-time positioning data validity.
Embodiment two
Present embodiment provides a kind of method of locator data Compression and Transmission, and is as shown in Figure 2, and said method comprises:
201, location database is monitored.
Wherein, said location database specifically is used to store the locator data of being uploaded in real time by GPS equipment.
202, judge whether location database is upgraded, then do not return step 201, if location database has and upgrades then execution in step 203 if location database is upgraded.
203, the locator data of upgrading is carried out preliminary treatment.
Concrete, said locator data to renewal is carried out preliminary treatment and is comprised:
The locator data of said renewal is carried out validity screen, delete invalid locator data.
204, to carrying out the BCD encoding compression through pretreated locator data.
205, calculate carrying out error check code through the locator data of BCD encoding compression.
206, the locator data that will pass through after error check code calculates is sent.
The method of the locator data Compression and Transmission that the embodiment of the invention provides through location database is monitored, judges whether said location database has renewal; If said location database has renewal, the locator data of upgrading is carried out the BCD encoding compression; Calculate carrying out error check code then through the locator data after the BCD encoding compression; The locator data that to pass through at last after error check code calculates is sent.Compared with prior art, the embodiment of the invention can insert real-time positioning data as much as possible by enough limited network bandwidths, has reduced the cost that urban transportation is induced in real time when guaranteeing the real-time positioning data validity.
Embodiment three
Present embodiment provides a kind of device of locator data Compression and Transmission, and is as shown in Figure 3, and said device comprises:
Location database is monitored module 32, is used for location database is monitored, and judges whether said location database has renewal;
BCD data coding module 33 is used for when said location database has renewal, and the locator data of upgrading is carried out the BCD encoding compression;
Concrete, said location database 31 is used to store the locator data of being uploaded in real time by GPS equipment.
Further, as shown in Figure 4, said device also comprises:
Locator data pretreatment module 36 is used for the locator data of upgrading is carried out preliminary treatment;
Then said BCD data coding module 33 also is used for pretreated locator data is carried out the BCD encoding compression.
Further, said locator data pretreatment module 36 specifically is used for:
The locator data of said renewal is carried out validity screen, delete invalid locator data.
The device of the locator data Compression and Transmission that the embodiment of the invention provides is monitored 32 pairs of location database 31 of module through location database and is monitored, and judges whether said location database 31 has renewal; If said location database 31 has renewal, then carry out the BCD encoding compression through the locator data of 33 pairs of renewals of BCD data coding module; Carrying out error check code through 34 pairs of CRC check modules through the locator data after the BCD encoding compression then calculates; The locator data that to pass through after error check code calculates through data transmission blocks 35 is at last sent.Compared with prior art, the embodiment of the invention can insert real-time positioning data as much as possible by enough limited network bandwidths, has reduced the cost that urban transportation is induced in real time when guaranteeing the real-time positioning data validity.
The device of the locator data Compression and Transmission that the embodiment of the invention provides can be realized the above-mentioned method embodiment that provides, and concrete function is realized seeing also the explanation among the method embodiment, repeats no more at this.The method of the locator data Compression and Transmission that the embodiment of the invention provides and device go for locator data is carried out Compression and Transmission, but are not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. the method for a locator data Compression and Transmission is characterized in that, comprising:
Location database is monitored, judged whether said location database has renewal;
If said location database has renewal, the locator data of upgrading is carried out the BCD encoding compression;
Calculate carrying out error check code through the locator data after the BCD encoding compression;
The locator data that to pass through after error check code calculates is sent.
2. method according to claim 1 is characterized in that, said location database is used to store the locator data of being uploaded in real time by GPS equipment.
3. method according to claim 1 is characterized in that, before said locator data to renewal is carried out the BCD encoding compression, also comprises:
Locator data to upgrading is carried out preliminary treatment.
4. method according to claim 3 is characterized in that, said locator data to renewal is carried out preliminary treatment and comprised:
The locator data of said renewal is carried out validity screen, delete invalid locator data.
5. the device of a locator data Compression and Transmission is characterized in that, comprising:
Location database is used for the store location data;
Location database is monitored module, is used for location database is monitored, and judges whether said location database has renewal;
The BCD data coding module is used for when said location database has renewal, and the locator data of upgrading is carried out the BCD encoding compression;
The CRC check module is used for calculating carrying out error check code through the locator data after the BCD encoding compression;
Data transmission blocks is used for the locator data after calculating through error check code is sent.
6. device according to claim 5 is characterized in that, said location database specifically is used to store the locator data of being uploaded in real time by GPS equipment.
7. device according to claim 5 is characterized in that, also comprises:
The locator data pretreatment module is used for the locator data of upgrading is carried out preliminary treatment;
Then said BCD data coding module also is used for pretreated locator data is carried out the BCD encoding compression.
8. device according to claim 7 is characterized in that, said locator data pretreatment module specifically is used for:
The locator data of said renewal is carried out validity screen, delete invalid locator data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110187053A CN102325002A (en) | 2011-07-05 | 2011-07-05 | Method and device for positioning data compression and transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110187053A CN102325002A (en) | 2011-07-05 | 2011-07-05 | Method and device for positioning data compression and transmission |
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| CN201110187053A Pending CN102325002A (en) | 2011-07-05 | 2011-07-05 | Method and device for positioning data compression and transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308933A (en) * | 2012-03-07 | 2013-09-18 | Nxp股份有限公司 | Contextual data compression for geo-tracking applications |
| CN105739480A (en) * | 2016-01-26 | 2016-07-06 | 深圳市元征科技股份有限公司 | Data compression transmission method and data compression transmission device |
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| US20020035416A1 (en) * | 2000-03-15 | 2002-03-21 | De Leon Hilary Laing | Self-contained flight data recorder with wireless data retrieval |
| CN1458754A (en) * | 2003-05-15 | 2003-11-26 | 清华大学 | Global positioning and monitoring method for moving object |
| KR20090028265A (en) * | 2007-09-14 | 2009-03-18 | 엘에스산전 주식회사 | Phasor measurement unit performing data compression and transmission |
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2011
- 2011-07-05 CN CN201110187053A patent/CN102325002A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020035416A1 (en) * | 2000-03-15 | 2002-03-21 | De Leon Hilary Laing | Self-contained flight data recorder with wireless data retrieval |
| CN1458754A (en) * | 2003-05-15 | 2003-11-26 | 清华大学 | Global positioning and monitoring method for moving object |
| KR20090028265A (en) * | 2007-09-14 | 2009-03-18 | 엘에스산전 주식회사 | Phasor measurement unit performing data compression and transmission |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308933A (en) * | 2012-03-07 | 2013-09-18 | Nxp股份有限公司 | Contextual data compression for geo-tracking applications |
| CN103308933B (en) * | 2012-03-07 | 2015-09-02 | 泰利特汽车解决方案公司 | For the context data compression of geographic tracking application |
| CN105739480A (en) * | 2016-01-26 | 2016-07-06 | 深圳市元征科技股份有限公司 | Data compression transmission method and data compression transmission device |
| CN105739480B (en) * | 2016-01-26 | 2019-04-19 | 深圳市元征科技股份有限公司 | Data compression transmission method and device |
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Application publication date: 20120118 |