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Method for one-off collection of a plurality of data items

A data item, one-time technology, applied in signal transmission systems, instruments, wired transmission systems, etc., can solve the problems of many times of interaction, low efficiency, and insufficient utilization of system communication resources in the system, so as to improve data acquisition. efficiency, improving the frequency and density of data collection, and improving the utilization of system communication resources

Active Publication Date: 2017-02-22
STATE GRID FUJIAN ELECTRIC POWER CO LTD +2
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, the efficiency of copying a single data item is low, the number of system copying interactions is high, and the system communication resources are not fully utilized, which cannot meet the needs of various business development

Method used

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  • Method for one-off collection of a plurality of data items
  • Method for one-off collection of a plurality of data items
  • Method for one-off collection of a plurality of data items

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Embodiment Construction

[0039] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0040] The present invention provides a method for one-time collection of multiple data items. It provides a terminal as a master station and a plurality of electric energy meters connected to the terminal through power lines as slave stations, and realizes according to the following steps:

[0041] Step S1: The terminal initiates a request to read the data of the electric energy meter, generates a master station request message, and sends it to the electric energy meter; the data field in the master station request frame of the master station request message includes: the combined reading of multiple data items set at the header of the field identifier, a plurality of data item data identifiers set after the multi-data item combined reading identifier, and a combined reading data block separator set between the data item data identifiers;...

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Abstract

The invention relates to a method for one-off collection of a plurality of data items. A terminal serving as a master station and a plurality of electric energy meters that serve as slave stations and are connected with the terminal by power lines are provided. The terminal initiates a electric energy meter data reading request, generates master station request messages, and sends the messages to the electric energy meters; the electric energy meters check master station request frames; when detecting identifiers for multi-data-item combined reading in data domains of the master station request frames, the electric energy meters carry out multi-data-item combined reading processing; the electric energy meters generate slave station response messages and upload the messages to the terminal; the terminal checks the returned slave station response messages; and when the identifiers for multi-data-item combined reading in slave station response frame data domains are detected, multi-data-item combined parsing processing is carried out. According to the method provided by the invention, the different types of data items of the electric energy meters can be read in a one-off manner, so that the utilization rate of communication resources of the system is improved, the system communication resources are dug fully, and the data acquisition efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of meter communication, in particular to a method for one-time collection of multiple data items. Background technique [0002] Existing electric energy meters mainly adopt the DL / T645-2007 protocol. According to this agreement, most of the data does not have the function of block copying, and only the specified data items have the function of block copying. However, some block copy data content is not required by the business and cannot Realize the block copy function of different types of data items. [0003] Frame is the basic unit of information transmitted by the energy meter. frame format like figure 1 shown. According to the DL / T645-2007 protocol, the master station reads the data request frame as follows: [0004] Frame format 1: [0005] [0006] Frame format 2: [0007] [0008] Frame format 3: [0009] [0010] It can be seen from the above frame format that the current technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54G08C19/00
CPCG08C19/00H04B3/546
Inventor 夏桃芳郭银婷郑州詹世安陈慧谢榕芳魏晓莹
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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