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Field bus based electric energy computing system

A field bus, power calculation technology, applied in electric vehicles, electrical devices, electrical components, etc., can solve problems such as unreasonable and uneconomical substation resources

Inactive Publication Date: 2008-06-18
浙江正泰能效科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But directly in the field bus, it is uneconomical and unreasonable to occupy a large number of substation resources for such a real-time engineering system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: In this embodiment, the electric energy calculation system based on the field bus of the present invention includes a plurality of electric energy metering sub-stations, and there are field bus communication sub-stations in the plurality of electric energy metering sub-stations, and are connected to the Field bus communication system, wherein, the field bus communication sub-stations in each electric energy metering sub-station share a common sub-station address and can receive information at the same time; each electric energy metering sub-station has a second-layer address coding register, which can save Address coding; only when the address of the substation and the second-layer address code of the electric energy metering substation match, it can send reporting information to the fieldbus communication system through its internal fieldbus communication substation through the communication master station. In this embodiment, when checking whether the lay...

Embodiment 2

[0012] Embodiment 2: In this embodiment, the electric energy meter sub-station also includes a timing setter, which sets the second-layer offset code to automatically respond on time, which can further reduce the occupied time resources.

Embodiment 3

[0013] Embodiment 3: In this embodiment, the electric energy metering substation also includes an automatic switching device. When the second-layer offset code responds on time, within the preset response communication period, the electric energy metering substation is connected to the field bus communication The bus of the system, after the communication is completed, automatically exits the connection with the bus. In this embodiment, the automatic switching device includes a time synchronization device for automatic calibration with the bus clock of the field bus communication system. And the electric energy metering sub-station is connected to the bus of the field bus communication system through its internal field bus communication sub-station through the communication master station. In this way, the occupation of physical resources of the field bus is also minimized.

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PUM

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Abstract

This invention provides in site bus based electric energy calculation system, especially containing plurality of electric energy measuring sub-station with internal in site bus communication sub-station and connected to in site bus communication through communication main station, the in site bus communication sub-station sharing common sub-station address and receiving information simultaneously, each electric energy measuring sub-station has one two-layer coding register for storing two-layer coding and sends information to in site bus communication through communication main station when sub-station and two-layer address are fitted. Said invention can minimize occupying real time resource of in site bus without influence of its operation.

Description

technical field [0001] The invention belongs to the field of electrical appliances, and relates to electric energy measurement, in particular to a closed internal electric energy calculation and distribution system. technical background [0002] In the internal electric energy measurement and calculation system, there are many advantages of using fieldbus, such as no need to establish an additional communication system, but electric energy measurement and calculation is a centralized parameter reporting system for a long time segment. Such as: submit data once a day, a week, and a month. But it is uneconomical and unreasonable to occupy a lot of substation resources directly in the field bus, such an engineering system with strong real-time performance. Contents of the invention [0003] Therefore, the object of the present invention is to invent a method and capacity to avoid the above disadvantages and utilize the advantages of the fieldbus in the electric energy calcul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00G01R21/00
Inventor 朱守云张扬朱飞刘琤柴熠赵雷
Owner 浙江正泰能效科技有限公司