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A Method for Power Line Carrier Meter Reading Based on Dynamic Routing Algorithm

A technology of power line carrier and power line, which is applied in the field of electric meter data acquisition, can solve problems such as the failure of multiple data communication paths to communicate normally, and the failure of large-scale electric meter reading, so as to reduce the forwarding and meter reading of repeated request frames and repeated data frames high success rate

Active Publication Date: 2016-04-27
ZHEJIANG CHINT INSTR & METER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the failure of multiple data communication paths caused by the failure of a certain meter in the power carrier online meter reading system in the prior art, which leads to the failure of large-scale meter reading. A Dynamic Routing Algorithm Based on Power Line Online Meter Reading

Method used

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  • A Method for Power Line Carrier Meter Reading Based on Dynamic Routing Algorithm
  • A Method for Power Line Carrier Meter Reading Based on Dynamic Routing Algorithm

Examples

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Effect test

Embodiment 1

[0043] A system structure involved in a dynamic routing algorithm for power line carrier meter reading in this embodiment, such as figure 2 As shown, it includes a concentrator and an ammeter, and the concentrator and the ammeter, and the ammeter and the ammeter are connected by power lines.

[0044] It is a dynamic routing algorithm for power line carrier meter reading, comprising the following steps:

[0045] S1: The concentrator sends a request frame to the power line in the form of broadcast to read the data of the electric meter; the specific steps are as follows:

[0046] S11: Before sending the request frame, first monitor whether the power line is in an idle state, the process is as follows:

[0047] S111: The concentrator sends a listening frame to the power line to detect whether the power line is busy;

[0048] S112: While the concentrator sends the interception frame to the power line, the concentrator receives the interception frame sent by the concentrator its...

Embodiment 2

[0080] As a further supplement to Embodiment 1, each request frame / data frame also includes the survival time of the request frame / data frame t=T-t'×repeat times, where T is when the request frame / data frame is generated The original survival time, t' is the time consumption factor, the time consumption factor t'=per frame data physical layer transmission time+program processing time, since the maximum transmission time of each frame data on the physical layer is 170ms, in order to prevent frame Frame transmission time is delayed due to frame waiting and other situations during transmission, so the physical layer transmission time of each frame is preferably slightly longer than 170ms, preferably 200ms, and the maximum processing time of the program is 40ms.

[0081] Correspondingly, in the step S4, the step of removing the repeated request frame is also included, and the process is as follows:

[0082] Each meter parses all request frames received at the same time, obtains the ...

Embodiment 3

[0092] As a further supplement to the above embodiment, the request frame includes a task ID, and the task ID represents the type of electric meter data that should be included in the data frame that the concentrator requests the target electric meter to send. The types of the electricity meter data include: voltage, current, electricity, power, load curve, frame loss record. Since the meter reading system and method based on the power line carrier has been relatively maturely applied in the prior art, there are certain criteria for the types of meter data required for meter reading and the specific format and requirements of these data. This will not be described in detail in this application.

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Abstract

A kind of dynamic routing algorithm for power line carrier meter reading according to the present invention adopts the form of broadcast to send request frame and data frame of electric meter, backup redundantly requests frame and data frame of electric meter, thus guarantees that at any moment as long as The power line online meter reading system has a reliable communication path. The concentrator can successfully send the request frame data to the target meter and collect the meter data from the target meter. It has the advantages of real-time performance, stability and high success rate of meter reading. It provides an effective technical guarantee for realizing the value-added power business through the power line carrier channel.

Description

technical field [0001] The invention relates to a dynamic routing algorithm for power line carrier meter reading, in particular to a routing algorithm for power line carrier remote data centralized meter reading, and belongs to the technical field of meter data acquisition. Background technique [0002] The traditional manual meter reading method not only has a large workload and low efficiency, but is gradually replaced by modern automatic meter reading. At present, power line carrier meter reading has been vigorously promoted by the power management department because of its advantages of reducing manpower consumption and not needing to lay additional communication lines. [0003] For example, Chinese patent CN102195683A discloses a power carrier communication method, which is applied to the remote meter reading of the power carrier network, wherein the power carrier network is such as figure 1 As shown, it includes a concentrator, a collector and a carrier table. The con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04B3/54G08C19/00H04L45/74
Inventor 刘宏广
Owner ZHEJIANG CHINT INSTR & METER
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