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System and method for controlling operation frequency of electric energy measuring signal processor

A signal processor and electric energy measurement technology, applied in the field of operation frequency control system, digital signal processor control system, can solve the problem of high power consumption

Active Publication Date: 2013-12-18
HANGZHOU VANGO TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide an operation frequency control method of an electric energy metering signal processor, which is used to solve the problem that the existing electric energy metering signal processor cannot perform calculations on the same signal at multiple operation frequencies, resulting in high power consumption

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  • System and method for controlling operation frequency of electric energy measuring signal processor
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  • System and method for controlling operation frequency of electric energy measuring signal processor

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Embodiment Construction

[0017] see figure 1 As shown, it is a system architecture diagram for implementing the operation frequency control method of the electric energy metering signal processor of the present invention, and the system for implementing the operation frequency control method of the electric energy metering signal processor of the present invention mainly includes an instruction memory, a signal processor, and a system counter and a register. The instruction memory stores all the control instructions of the electric energy metering signal processor, the signal processor reads instructions from the instruction memory, and the system counter is used to record the number of instructions executed by the digital signal processor after starting to work. The signal processor first passes Obtain the value of the specified bit of the system counter to obtain the current operation step position, where the system counter is used to record the number of instructions executed by the signal processo...

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Abstract

A system and method for controlling operation frequency of an electric energy measuring signal processor are applied to the digital signal processor in the field of electric energy measurement. According to the method, firstly, the position of a current operation step is obtained by obtaining an appointed bit position of a system counter, wherein the system counter is used for recording the number of commands carried out by the digital signal processor after the digital signal processor begins to operate; then, the number is compared with a preset number so that whether an appointed operation frequency point is reached or not can be determined, and then whether operation with a lower operation frequency is conducted or not is determined. By means of the method, the signal processor can achieve operation dispatching of a filter under various operation frequencies conveniently, and then reduction of power dissipation is facilitated.

Description

【Technical field】 [0001] The invention relates to a control system and method of a digital signal processor, and is especially suitable for the field of electric energy metering, and is an operation frequency control system and method for conveniently realizing multiple down-sampling operations on multi-channel signals. 【Background technique】 [0002] Electric energy meters have gradually developed from early mechanical electric energy meters, counter digital electric energy meters, and liquid crystal simple digital electric energy meters to smart electric meters. Its functions have gradually increased from simple metering energy, and gradually added reactive power metering, effective value measurement, fundamental wave power metering, and fundamental wave effective value measurement. In the recent development trend, the measurement and monitoring of DC and AC signals such as relay status and external electromagnetic field have been added. These put forward higher requireme...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/10
Inventor 孔泉杨昆赵岩
Owner HANGZHOU VANGO TECH
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