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Implementation method for chain fracture cache file management

A technology for caching files and files, applied in the field of communication

Active Publication Date: 2013-03-20
ZTE INTELLIGENT IOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the same industry, there is no good way to realize the function of caching data when the link is broken

Method used

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  • Implementation method for chain fracture cache file management
  • Implementation method for chain fracture cache file management
  • Implementation method for chain fracture cache file management

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In the radio frequency identification (RFID) reader, the specific implementation is as follows:

[0023] (1) Index file management label data package file such as figure 1 :

[0024] The file name follows a rule: the names of these N files are obtained according to the order of the integer value of the file name + 10000, and then it is converted into a string, and the string starting with "file" plus the integer value is used as the corresponding file name name. For example:

[0025] File 0 file name integer value = 0+10000 file string name is "file10000"

[0026] File 1 file name integer value = 1+10000 file string name is "file10001"

[0027] File 2 file name integer value = 2+10000 file string name is "file10002"

[0028]

[0029] File N file name integer value = N+10000 file string name is "file10000+N"

[0030] A path string can also be added in front of the file name, and the path string and the file name string can be combined to identify the file to be ...

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Abstract

The invention relates to a method for caching data after chain fracture, which comprises the following steps: (1) initializing files and setting pointers of the head and the tail end of an index file, the number of cache files and the space occupied by each cache file; (2) judging whether the cache files exist or not, if the cache files exist, judging whether the memory space of the cache files is fully written or not, and if the cache files do not exist, writing in files and returning; (3) if the memory space of the cache files is not fully written, writing in the files and returning, and if the cache files are not fully written, overlaying the written-in files. The file management method is simple and efficient and has the advantage that the data is guaranteed not to be lost after the chain fracture between data acquisition equipment and an application and management platform occurs.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to the design and implementation of file management for data packets after data acquisition equipment and application management platforms are disconnected in the fields of radio frequency identification (RFID), meteorological observation, industrial automatic control, and road traffic method. Background technique [0002] In the application scenarios of radio frequency identification (RFID), meteorological observation, industrial automatic control, and road traffic technology, when the data acquisition equipment is working normally, if the link between the data acquisition equipment and the application management platform is disconnected for some reason, the collected If the data cannot be transmitted to the application management platform in time, the data will be lost. Therefore, in order to ensure that important data is not lost and can be saved even when the link is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 吴中平吴明远
Owner ZTE INTELLIGENT IOT TECH