CN110266447A - A method of the wireless network blind zone data based on embedded system, which are mended, to be passed - Google Patents
A method of the wireless network blind zone data based on embedded system, which are mended, to be passed Download PDFInfo
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- CN110266447A CN110266447A CN201910402629.1A CN201910402629A CN110266447A CN 110266447 A CN110266447 A CN 110266447A CN 201910402629 A CN201910402629 A CN 201910402629A CN 110266447 A CN110266447 A CN 110266447A
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- gps
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- gps data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/113—Details of archiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The wireless network blind zone data based on embedded system that the invention discloses a kind of mend the method passed, including GPS module, embedded system, wireless network module, memory, storage equipment and data center server；GPS module, for acquiring the GPS data of mobile device；Embedded system receives GPS data, and the GPS data of acquisition is reported to Data processing central server by wireless network module, while carrying out GPS data and mending biography；Memory caches most newly generated and sends the GPS data that do not go out；Equipment is stored, it is interior that earliest GPS data is saved in storage equipment when depositing buffer area completely, data are saved in by way of file in storage equipment.A kind of wireless network blind zone data based on embedded system of the present invention mend the method passed, equipment is stored by the way of being cached to memory and combining using being cached to, not only the read-write frequency to storage equipment had been greatly reduced, but also has ensured the integrality of GPS position information data.
Description
Technical field
The present invention relates to field of data transmission, in particular to a kind of wireless network blind zone data based on embedded system are mended
The method of biography.
Background technique
Current mobile network signal can not cover all areas space, and the signal strength of each overlay area there is also
Difference, signal strength fluctuation is big, mobile network's terminal transceiver network data failure is easy to cause, when the movement for needing GPS positioning
When network-termination device enters this wireless network blind zone, it is impossible to forward GPS data, cause equipment track imperfect.For
This problem, the prior art may discard this part GPS data, or GPS data is directly cached to the storages such as SD card and is set
Among standby, data being read from storage equipment again when network is unobstructed and are uploaded, this will lead to frequent read-write storage equipment, effect
Rate is low, for this purpose, it is proposed that a kind of wireless network blind zone data based on embedded system mend the method passed.
Summary of the invention
The main purpose of the present invention is to provide a kind of, and the wireless network blind zone data based on embedded system mend the side passed
Method can effectively solve the problems in background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A method of the wireless network blind zone data based on embedded system, which are mended, to be passed, including GPS module, embedded system
System, wireless network module, memory, storage equipment and data center server；
GPS module, for acquiring the GPS data of mobile device；
Embedded system receives GPS data, and the GPS data of acquisition is reported at data by wireless network module
Central server is managed, while carrying out GPS data and mending biography；
Memory caches most newly generated and sends the GPS data that do not go out；
Equipment is stored, when core buffer is full, earliest GPS data is saved in storage equipment, data are passed through into text
The form of part is saved in storage equipment；
Wireless network module for GPS data to be transferred to data center server, and receives data center server
Feedback data；
Data center server receives the GPS data that mobile device reports, shifting can be fed back to after receiving GPS data
Dynamic one confirmation message of equipment end.
Preferably, GPS data acquisition reports that steps are as follows:
(1), GPS module acquisition GPS data is first passed through, in memory by the GPS data buffering of acquisition；
(2), when memory buffer is full, earliest GPS data is cached in storage equipment.
Preferably, in the step (2), when core buffer is full, newest GPS data is cached into memory, and most
Early GPS data caching hereof, has following two situation when storing equipment storage file:
A, when file is writeable, file is directly stored in storage equipment；
B, when file is not writeable, GPS data is abandoned.
Preferably, the GPS reports verification step as follows:
1., after data center server receives GPS data, to embedded system feedback acknowledgment information；
2., embedded system receive confirmation message, and memory buffer with store device file in search, after upload
GPS data abandons.
Preferably, the step 2. in, when embedded system is not received by confirmation message, again to data center take
Business device sends GPS data and first carries out memory lookup so that data center server issues confirmation message again:, will when finding
GPS data in memory abandons；Lookup then, is not searched inside storage equipment；And then it carries out storage equipment and looks into
It looks for: when finding, the GPS data in equipment will be stored and abandoned.
Preferably, steps are as follows for the GPS benefit biography:
I, embedded system detects memory buffer situation, and when memory buffer is not sky, remaining data is passed to number again
According to central server；File when memory buffer sky, in detection storage equipment；
II, embedded system detection stores device file, when having the data of not confirmed in file, by the number of not confirmed
According to retransmitting to data center server, it is not processed when the data of not confirmed.
Compared with prior art, the invention has the following beneficial effects:
The present invention is both greatly reduced and is set to storage using being cached to storage equipment by the way of being cached to memory and combining
Standby read-write frequency, and ensured the integrality of GPS position information data.
Detailed description of the invention
Fig. 1 is that a kind of wireless network blind zone data based on embedded system of the present invention mend the method overall flow frame passed
Figure；
Fig. 2 is that GPS data is adopted in a kind of method that the wireless network blind zone data benefit based on embedded system passes of the present invention
Collect the flow diagram reported；
Fig. 3 is that GPS is reported really in a kind of method that the wireless network blind zone data benefit based on embedded system passes of the present invention
The flow diagram recognized；
Fig. 4 is that GPS benefit passes in a kind of method that the wireless network blind zone data benefit based on embedded system passes of the present invention
Flow diagram.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
As shown in Figs 1-4, a method of the wireless network blind zone data based on embedded system, which are mended, to be passed, including GPS mould
Block, embedded system, wireless network module, memory, storage equipment and data center server；
GPS module, for acquiring the GPS data of mobile device；
Embedded system receives GPS data, and the GPS data of acquisition is reported at data by wireless network module
Central server is managed, while carrying out GPS data and mending biography；
Memory caches most newly generated and sends the GPS data that do not go out；
Equipment is stored, when core buffer is full, earliest GPS data is saved in storage equipment, data are passed through into text
The form of part is saved in storage equipment；
Wireless network module for GPS data to be transferred to data center server, and receives data center server
Feedback data；
Data center server receives the GPS data that mobile device reports, shifting can be fed back to after receiving GPS data
Dynamic one confirmation message of equipment end.
Preferably, GPS data acquisition reports that steps are as follows:
(1), GPS module acquisition GPS data is first passed through, in memory by the GPS data buffering of acquisition；
(2), when memory buffer is full, earliest GPS data is cached in storage equipment.
Preferably, in the step (2), when core buffer is full, newest GPS data is cached into memory, and most
Early GPS data caching hereof, has following two situation when storing equipment storage file:
A, when file is writeable, file is directly stored in storage equipment；
B, when file is not writeable, GPS data is abandoned.
In this process, reporting GPS data is to be reported to data center server.It is also seen that working as file from this process
GPS data will be abandoned when not writeable, file is not writeable to be generally present in the case where being not inserted into TF card or TF card insufficient space.
The size of core buffer can go to design according to the actual conditions of system, for example at most only cache 10 GPS datas, by 15 seconds
Report the frequency of a GPS data that can then cache 150 seconds data in this way, for high-speed mobile traffic work as automobile
Tool, it is likely that be moved to the strong region of signal from the weak region of movable signal in 150 seconds, thus avoid repeatedly
Written document also ensures not losing for GPS data.
Preferably, the GPS reports verification step as follows:
1., after data center server receives GPS data, to embedded system feedback acknowledgment information；
2., embedded system receive confirmation message, and memory buffer with store device file in search, after upload
GPS data abandons.
Preferably, the step 2. in, when embedded system is not received by confirmation message, again to data center take
Business device sends GPS data and first carries out memory lookup so that data center server issues confirmation message again:, will when finding
GPS data in memory abandons；Lookup then, is not searched inside storage equipment；And then it carries out storage equipment and looks into
It looks for: when finding, the GPS data in equipment will be stored and abandoned.
Preferably, steps are as follows for the GPS benefit biography:
I, embedded system detects memory buffer situation, and when memory buffer is not sky, remaining data is passed to number again
According to central server；File when memory buffer sky, in detection storage equipment；
II, embedded system detection stores device file, when having the data of not confirmed in file, by the number of not confirmed
According to retransmitting to data center server, it is not processed when the data of not confirmed.
The form that GPS data caches in memory and file is all continuously to cache as unit of structural body, therefore inside
It is array in depositing.Wherein the pseudocode of structural body is as follows:
In addition when depositing file, several bytes that most start of file save documentary Global Information, wherein containing
The GPS data of how many not confirmed in file can go to read this Global Information when device power-up, to judge text
Whether have in part and does not report successful GPS data.Entire data mend the process passed and are divided into following 3 sub- logic flow (these three
Process can be executed serially, wherein the execution frequency of GPS data acquisition report flow be about every 15 seconds it is primary, in addition two
A process is once per second).
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of wireless network blind zone data based on embedded system mend the method passed, which is characterized in that including GPS module,
Embedded system, wireless network module, memory, storage equipment and data center server；
GPS module, for acquiring the GPS data of mobile device；
Embedded system receives GPS data, and the GPS data of acquisition is reported to Data processing by wireless network module
Central server, while carrying out GPS data and mending biography；
Memory caches most newly generated and sends the GPS data that do not go out；
Equipment is stored, when core buffer is full, earliest GPS data is saved in storage equipment, data are passed through into file
Form is saved in storage equipment；
Wireless network module for GPS data to be transferred to data center server, and receives the feedback of data center server
Data；
Data center server receives the GPS data that mobile device reports, and movement can be fed back to after receiving GPS data and is set
One confirmation message in standby end.
2. a kind of wireless network blind zone data based on embedded system according to claim 1 mend the method passed, special
Sign is: GPS data acquisition reports that steps are as follows:
(1), GPS module acquisition GPS data is first passed through, in memory by the GPS data buffering of acquisition；
(2), when memory buffer is full, earliest GPS data is cached in storage equipment.
3. a kind of wireless network blind zone data based on embedded system according to claim 2 mend the method passed, special
Sign is: in the step (2), when core buffer is full, newest GPS data is cached into memory, and earliest GPS number
Hereof according to caching, there is following two situation when storing equipment storage file:
A, when file is writeable, file is directly stored in storage equipment；
B, when file is not writeable, GPS data is abandoned.
4. a kind of wireless network blind zone data based on embedded system according to claim 1 mend the method passed, special
Sign is: the GPS reports verification step as follows:
1., after data center server receives GPS data, to embedded system feedback acknowledgment information；
2., embedded system receive confirmation message, and memory buffer with store device file in search, by the GPS after upload
Data abandon.
5. a kind of wireless network blind zone data based on embedded system according to claim 4 mend the method passed, special
Sign is: the step 2. in, when embedded system is not received by confirmation message, again to data center server send
GPS data first carries out memory lookup so that data center server issues confirmation message again:, will be in memory when finding
GPS data abandons；Lookup then, is not searched inside storage equipment；And then carry out storage equipment and search: finding
When, the GPS data in equipment will be stored and abandoned.
6. a kind of wireless network blind zone data based on embedded system according to claim 1 mend the method passed, special
Sign is: the GPS mends biography, and steps are as follows:
I, embedded system detects memory buffer situation, and when memory buffer is not sky, remaining data is passed in data again
Central server；File when memory buffer sky, in detection storage equipment；
II, embedded system detection stores device file, when having the data of not confirmed in file, by the data weight of not confirmed
It newly is sent to data center server, is not not processed when the data of not confirmed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110957668A (en) * | 2019-11-29 | 2020-04-03 | 南京铁道职业技术学院 | Contact net inspection system and steps |
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| CN103699613A (en) * | 2013-12-17 | 2014-04-02 | 迈普通信技术股份有限公司 | Method and system for buffering file system in embedded system |
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Application publication date: 20190920 |