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Electric power measuring instrument based on CAN bus communication

A CAN bus and power measurement technology, applied in the field of electronic measurement, can solve the problems of low data transmission rate and low bus utilization

Inactive Publication Date: 2020-07-07
陕西天道必成信息技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the RS485 bus communication technology has low bus utilization rate, low data transmission rate, and only one host, it is mostly used between the centralized control hub and the decentralized control unit

Method used

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  • Electric power measuring instrument based on CAN bus communication
  • Electric power measuring instrument based on CAN bus communication
  • Electric power measuring instrument based on CAN bus communication

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto.

[0021] Please refer to figure 1 , figure 1 It is a schematic diagram of the hardware principle provided by the embodiment of the present invention. An embodiment of the present invention is a power measuring instrument based on CAN bus communication, which specifically includes: a central processing unit, a communication circuit, a power supply circuit, a measurement circuit, a driving circuit, buttons and a display circuit, wherein: the central processing unit passes through its internal The serial port is connected to the communication circuit, the central processing unit is connected to the power supply circuit through its internal power port, the central processing unit is connected to the measurement circuit through its internal control port, and the central processing unit is connected to th...

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Abstract

The invention relates to an electric power measuring instrument based on CAN bus communication, which specifically comprises a central processing unit, a communication circuit, a power supply circuit,a measuring circuit, a driving circuit and a key and display circuit; the central processing unit is connected with the communication circuit through an internal serial port of the central processingunit. The central processing unit is connected with the power supply circuit through an internal power supply port of the central processing unit; the central processing unit is connected with the measuring circuit through an internal control port of the central processing unit, the central processing unit is connected with the driving circuit through an internal bus port of the central processing unit, and the key and display circuit is connected with an internal I / O port of the central processing unit and a driving bus of the driving circuit. According to the embodiment of the invention, the CAN bus is used for communication; and the electric power measuring instrument has the advantages of high transmission rate, long transmission distance, high electromagnetic interference resistanceand the like.

Description

technical field [0001] The invention belongs to the technical field of electronic measurement, and in particular relates to a power measuring instrument based on CAN bus communication. Background technique [0002] With the rapid development of my country's economy, the power load has increased. In addition, in recent years, the country has promoted the intelligentization of the power system grid, the operation of the smart grid and the reform of the power market have made the power grid have higher requirements for power quality. , the early power load is not sensitive to short-term voltage changes, and only needs to ensure the continuity and reliability of power supply. However, with the update of technology and technology, many new rectifier bridges and frequency conversion speed control devices have appeared. , electrification equipment, etc. These loads have the characteristics of nonlinearity and impact unbalance. At the same time, more and more equipment controlled by m...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 欧烨
Owner 陕西天道必成信息技术有限责任公司
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