Timing synchronization of self-powered power sensors and central controller collecting samples therefrom

A technology of central controller and power sensor, applied in synchronous signal speed/phase control, measurement of electric power, electric power measurement by applying digital technology, etc., can solve the problem that wireless SPPS cannot accurately measure power consumption, etc.

Active Publication Date: 2020-06-19
PANORAMIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when there is a wireless connection between the sampling of current and voltage, other innovations are required to measure accurately to overcome the shortcomings of wireless SPPS that cannot accurately measure power consumption

Method used

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  • Timing synchronization of self-powered power sensors and central controller collecting samples therefrom
  • Timing synchronization of self-powered power sensors and central controller collecting samples therefrom
  • Timing synchronization of self-powered power sensors and central controller collecting samples therefrom

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Embodiment Construction

[0025] It is important to note that the embodiments disclosed herein are only examples of the many advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily limit any of the various claimed embodiments. Furthermore, some statements may apply to some inventive features but not to others. In general, unless otherwise indicated, singular elements may be plural and vice versa without loss of generality. In the drawings, like reference numerals refer to like parts throughout the several views.

[0026] Some example disclosed embodiments include methods and systems for sampling at least one current signal from a self-powered power sensor (SPPS). The current signal information is wirelessly transmitted to the central controller using a packet containing the preamble, synchronization information, current signal information, and transmission offset time information. The transmission starts bef...

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Abstract

A system and method for the synchronization of a central controller wirelessly for determining values of electrical parameters are provided. The method includes sampling an electrical signal via at least one self-powered power sensor (SPPS); estimating, via the at least one SPPS, a time-stamp based on the sampled electrical signal; estimating, via the at least one SPPS, at least a first electricalparameter; generating a preamble of a packet; generating a synchronization information for a synchronization field of the packet; transmitting the packet components wirelessly; determining a time offset value for the packet based on the time-stamp and the transmission time-stamp of the synchronization information; and transmitting the time offset value by appending the time offset value to the packet, wherein the time offset value is used for determining at least a second electrical parameter.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 537,324, filed July 26, 2017, the contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates generally to a self-powered power sensor (SPPS), and more particularly to accurately synchronizing the SPPS to measure power consumption when using a wireless SPPS. Background technique [0004] By using self-powered power sensors (SPPS) located at multiple locations within the facility grid, power consumption across the grid can be measured. Typically, such SPPSs are located at critical points of power consumption, such as circuit breakers or devices that draw more power. [0005] FIG. 1 is a block diagram of an exemplary SPPS 100 that includes a current transformer (CT) 103 whose primary winding receives a primary current 102 . It also includes an analog-to-digital converter (ADC or A / D) 105 that c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/00H04L7/04
CPCG01R35/04G01R15/18G01R19/2506H04W56/001G01R21/133H04B15/005H04B1/04
Inventor A·萨米尔D·阿尔雅德夫
Owner PANORAMIC POWER
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