Automatic meter searching method of ammeter acquisition terminal

Abstract

The invention relates to an automatic meter searching method of an ammeter acquisition terminal, which comprises the following steps of: dividing all meter address ranges to be searched into two sections to realize halving processing, respectively sending meter address query messages corresponding to an upper limit value and a lower limit value of each section of meter address to each section of segmented meter address, if the ammeter corresponding to one section of meter address range does not return the message information, stopping the meter searching work, if a meter address to be queriedand a legal message returned by the meter exist in the meters corresponding to a section of meter address range, by a meter acquisition terminal, recording ammeter information corresponding to the meter address and stopping meter searching work, if the ammeter corresponding to one section of the meter address range has the meter address, to be queried, returned by the ammeter, and if the returnedmessage is illegal, by the ammeter acquisition terminal, performing half-folding processing on the segment of the meter address range, and stopping the meter searching work until the state of finishing the meter searching work is reached, thereby accelerating the meter searching speed of the ammeter acquisition terminal and improving the meter searching efficiency.

Description

technical field [0001] The invention relates to the field of electric energy meters, in particular to an automatic meter search method for an electric meter collection terminal. Background technique [0002] In the field of electric power, terminals and a certain number of electric energy meters form a data acquisition network. In this data acquisition network, the terminal is responsible for completing the collection of energy meter data in the station area. For example, the terminal generally collects the data of the energy meter managed in the jurisdiction through 485 communication, and then stores the response data information of the energy meter in the terminal middle. [0003] In actual scenarios, there are situations such as on-site meter replacement, crosstalk between station areas, and load switching, which lead to a sharp increase in the workload of file setting for on-site meters. In order to solve the on-site service workload for the electric meter and reduce d...

AI Technical Summary

Problems solved by technology

[0010] However, there are still some deficiencies in the traditional 485-bit abbreviated meter search scheme adopted by the energy meter collection terminal: the existing 485-bit abbreviated meter search scheme essentially uses the method of traversing addresses to search for meters. Since there are usually many electric energy meters on site, The order of magnitude is large. If the meter collection terminal sends query messages to the on-site electric energy meters one by one according to the meter address, and then returns according to whether the address of each meter has message information to judge whether there is an electric energy meter at the address of the meter, and then determine the address of each meter The change of the energy meter on the network will inevitably increase the complexity of the meter search, resulting in a significant increase in the time for the meter collection terminal to perform the meter search, reducing the efficiency of the meter search

Images