High-frequency synchronous power utilization data acquisition device

Abstract

The invention discloses a high-frequency synchronous power utilization data acquisition device. Firstly, analog signal pre-stage conditioning is carried out on voltage and current signals of an acquisition loop through a synchronization and filtering signal conditioning circuit; secondly, two paths of height separation and collection AD sampling chips are synchronously controlled to complete synchronous 128-point discretization of two paths of waveforms of voltage and current by adopting a finite-state machine method through a CPLD (Complex Programmable Logic Device); thirdly, designing an RAM by utilizing the management characteristics of multiple logic elements of the CPLD and a VHDL multithreading module, so that signal acquisition data input and signal processing data output are completely synchronous and independent and do not interfere; fourthly, a high-speed digital signal processing chip is adopted to read the high-density data stored in the RAM, and data preprocessing is carried out; fifthly, feature comparison, classification and feature forming are carried out on the high-density acquired data; and sixthly, load classification statistics is carried out on new acquisition points according to the final formed features, and a result is outputted through a high-speed physical layer protocol PHY chip. The device is applied to the electric data acquisition device.

Description

Technical field: [0001] The invention relates to a high-frequency synchronous power consumption data acquisition device. Background technique: [0002] With the progress of electric power reform, the separation of allocation and sales has become more and more formalized, and the competition in the electricity sales market has become increasingly fierce. Power companies need to retain as many customers as possible and attract more power customers by improving their own power management capabilities. How to retain power users, enhance the value of power users and their own value, so as to achieve mutual benefit between users and enterprises, has become an issue of increasing concern to power companies. At present, power companies' analysis and management of electricity consumption and related services for power users are still in their infancy, and a detailed analysis system has not been formed for a large number of users' electricity consumption information worth mining, so ...

AI Technical Summary

Problems solved by technology

[0004] 1. The user's electricity consumption information collection device only has a simple power metering function. Most of the collection devices are ordinary electric meters and smart electric meters. Due to the limitation of communication link resources, this type of equipment can only achieve a very low collection frequency, such as uploading within one day 24 power information points, even the current collection frequency of smart meters can only reach the upload frequency of 96 points per day, such low-density power consumption information data cannot support in-depth analysis of power consumption behavior and characteristics of power users, resulting in advanced The analysis strategy is limited by low-quality electricity consumption information data, and it is impossible to make effective customer electricity consumption information management

[0005] 2. The user's electricity consumption information collection device can only collect the general information of the metering circuit, which can only reflect the overall power consumption of the circuit. This type of information can only describe the load level of the user level. Micro information cannot be reflected at all, which is also one of the important reasons for the current low level of customer electricity information management and service

[0006] Low collection density of collection devices: At present, most electricity consumption information collection devices are implemented by dedicated electric energy metering chips, and the collection frequency is very low, which can only reach the collection density of a day, an hour or 15 minutes

[0007] The type of data items collected by the collection device is single: at present, the electricity consumption information collection device can only collect the overall energy consumption information at the user level, and this information is collected at a low collection frequency, which can only be used for simple metering

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