CN103744046A - Intelligent electric energy meter running state monitoring system - Google Patents

Abstract

The present invention provides a system for monitoring the operating state of an intelligent electric energy meter, comprising: an ARM processor, a power supply, a memory, a liquid crystal display, a communication interface, a general packet wireless service GPRS module, and buttons; wherein, the power supply is used for power supply, and the operating state of the intelligent electric energy meter The monitoring system communicates with the smart energy meter terminal through the communication interface, and obtains the measurement and status information of the smart energy meter in real time; the ARM processor analyzes and processes the measurement and status information, and sends them to the remote server through the GPRS module; the memory communicates with the ARM through the SPI interface The processor communicates; the GPRS module is externally connected to the antenna device, which uses the UART interface to communicate with the ARM processor; the liquid crystal display and buttons are used for human-computer interaction, and the operator can set the parameters of the smart energy meter operation status monitoring system through the buttons, and the historical data Query, transfer data operations.

Description

A Smart Energy Meter Operation Status Monitoring System

technical field

The invention relates to the field of electric power technology, in particular to a system for monitoring the operating state of an intelligent electric energy meter.

Background technique

At present, the electric energy metering system can combine microcomputer, communication and metering technology, integrate electric energy metering, data acquisition and processing, and realize remote control of smart electric energy meters, which can fundamentally reduce the complicated labor of meter reading personnel and reduce the number of departments Disputes with customers also adapt to modern people's needs for payment and improve overall work efficiency. Among them, the smart electric energy meter is the nerve ending of the electric energy metering system and the most important and basic component of the electric energy usage information collection system.

The operational reliability of smart energy meters is an important factor for the reliability of the entire electric energy metering system. The domestic research on the reliability of smart energy meters is not perfect, and the design, production, inspection, and use of smart energy meters have not yet formed standardized reliability. The permanent management system leads to various hidden dangers in the entire metering system, which easily causes waste of manpower, material resources, and financial resources, and affects the interests of power companies and users. At the same time, the reliability analysis of smart energy meters requires a large amount of energy meter operating data and fault data. The current power supply system has not yet carried out a detailed collection system for them, which affects the process of scientific reliability analysis of energy meters.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a monitoring system for the operating state of a smart electric energy meter.

The present invention provides a system for monitoring the operating state of an intelligent electric energy meter, comprising: an ARM processor, a power supply, a memory, a liquid crystal display, a communication interface, a general packet wireless service GPRS module, and buttons;

Wherein, the power supply supplies power to the smart energy meter operation status monitoring system, and the smart energy meter operation status monitoring system communicates with the smart energy meter terminal through the communication interface to obtain the measurement of the smart energy meter in real time and status information;

The ARM processor analyzes and processes the metering and status information, and sends it to a remote server through the GPRS module;

The memory communicates with the ARM processor through an SPI interface, and is used to store metering and status information analyzed and processed by the ARM processor;

The GPRS module is externally connected to an antenna device, which uses a UART interface to communicate with the ARM processor;

The liquid crystal display and buttons are used for human-computer interaction, and operators can perform parameter setting, historical data query, and data transmission operations on the smart electric energy meter operating state monitoring system through the buttons.

Wherein, the memory is a FLASH memory.

Wherein, the system further includes: an infrared communication interface, used for sending out the historical data of the processing results of the ARM processor when the communication between the GPRS module and the ARM processor is interrupted.

Wherein, the system further includes: a real-time clock chip for synchronizing system time, which is equipped with a button battery.

Wherein, the liquid crystal display is an LED or LCD liquid crystal display, which is used to display the running status and communication status.

Compared with prior art, the beneficial effect of the present invention is:

Utilizing the characteristics of low cost, strong computing power and high reliability of the embedded system of the ARM processor, through the 485 communication mode, the remote monitoring of up to 128 electric energy meter terminals can be realized, and the status data of the electric energy meter can be preliminarily analyzed and timely Faults are found, and the results are sent to the remote server through the GPRS module in real time. After the fault is found, the power company can replace the faulty electric energy meter in time, reducing losses, and collecting a large amount of electric energy meter operation data and fault data. The reliability analysis work provides data support.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of Embodiment 1 of an operating state monitoring system for a smart electric energy meter;

Fig. 2 is a schematic structural diagram of Embodiment 2 of an operating state monitoring system for a smart electric energy meter.

Detailed ways

Referring to Fig. 1 , a schematic structural diagram of Embodiment 1 of an operating state monitoring system for a smart electric energy meter provided by the present invention, which includes an ARM processor 1, a power supply 2, buttons 3, a memory 5, a liquid crystal display 6, a communication interface 8, and a GPRS module 11.

Wherein, the power supply 2 supplies power for the smart energy meter operation status monitoring system, and the smart energy meter operation status monitoring system communicates with the smart energy meter terminal 9 through the communication interface 8 to obtain the smart energy meter in real time. Metrology and status information of Table 9;

The ARM processor 1 analyzes and processes the metering and status information, and sends it to a remote server through the GPRS module 11;

The memory 5 communicates with the ARM processor 1 through the SPI interface, and is used for storing measurement and status information analyzed and processed by the ARM processor 11;

The GPRS module 1 is externally connected to an antenna device 12, which uses a UART interface to communicate with the ARM processor 1;

The liquid crystal display 6 and the key 3 are used for human-computer interaction, and the operator can perform parameter setting, historical data query, and data transmission operations on the operating state monitoring system of the smart energy meter 9 through the key 3 .

Referring to FIG. 2 , it is a schematic structural diagram of Embodiment 2 of a system for monitoring the operating state of a smart electric energy meter provided by the present invention.

In the present embodiment, the ARM processor 1 is specifically an ARM Cortex-M3 processor, and the ARM Cortex-M3 is a high-performance 32-bit processor core, which is suitable for intelligent measurement, industrial control systems, man-machine interface equipment and automotive electronics, In medical equipment and other fields, the code running speed can reach 1.2DMIPS/MHz; in addition, the ARM processor adopts the Harvard structure, has an independent 32-bit instruction bus and data bus, and embeds the μC/OS-Ⅱ multi-tasking real-time operating system. In the operating system, data acquisition control, communication control and state judgment algorithms are realized. The ARM processor 1 communicates with the smart energy meter terminal 9 through the 485 communication interface 8, obtains the measurement and status information of the smart energy meter 9 in real time, and then transmits the measurement information and status information to the remote server of the electric power company through the GPRS module 11, In this way, not only real-time monitoring of the operating status of the electric energy meter can be realized, but also remote meter reading can be realized.

In addition, the system also includes: an infrared communication interface 10, which is used to send out the historical data of the processing results of the ARM processor 1 when the communication between the GPRS module 11 and the ARM processor 1 is interrupted . Specifically, when the communication of the GPRS module 11 is interrupted, the handheld device of the meter reading personnel can communicate with the infrared communication interface 10 to read historical data and other information.

The system also includes: a real-time clock chip 4 for synchronizing system time, which is configured with a button battery. When the total system power supply 1 is cut off, the real-time clock chip 4 can still work normally.

In a specific implementation, the memory 6 is a FLASH memory, which satisfies the storage of multiple data and the calling of historical data, and communicates with the ARM processor 1 through an SPI interface. The liquid crystal display 6 is an LED or LCD liquid crystal display, which is used to display the running status and communication status. Operators can set parameters such as device communication address, communication rate, time, etc., can query historical data, and output historical data through the infrared communication interface.

Compared with prior art, the beneficial effect of the present invention is:

Utilizing the characteristics of low cost, strong computing power and high reliability of the embedded system of the ARM processor, through the 485 communication mode, the remote monitoring of up to 128 electric energy meter terminals can be realized, and the status data of the electric energy meter can be preliminarily analyzed and timely Faults are found, and the results are sent to the remote server through the GPRS module in real time. After the fault is found, the power company can replace the faulty electric energy meter in time, reducing losses, and collecting a large amount of electric energy meter operation data and fault data. The reliability analysis work provides data support.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (5)

1. an intelligent electric energy meter operating state monitoring system, is characterized in that, comprising: arm processor, power supply, storer, liquid crystal display, communication interface, general packet radio service GPRS module, button;

Wherein, described power supply is described intelligent electric energy meter operating state monitoring system power supply, described intelligent electric energy meter operating state monitoring system carries out communication by described communication interface and described intelligent electric energy meter terminal, metering and the status information of intelligent electric energy meter described in Real-time Obtaining;

Described arm processor carries out analyzing and processing to described metering and status information, by described GPRS module, is sent to remote server;

Described storer communicates by SPI interface and described arm processor, for storing metering and the status information after described arm processor analyzing and processing;

Described GPRS module external antenna device, it adopts UART interface to communicate by letter with described arm processor;

Described liquid crystal display and button are for man-machine interaction, and operating personnel can carry out parameter setting to intelligent electric energy meter operating state monitoring system by button, the inquiry of historical data, transmission data manipulation.

2. intelligent electric energy meter operating state monitoring system as claimed in claim 1, is characterized in that, described storer is FLASH storer.

3. intelligent electric energy meter operating state monitoring system as claimed in claim 2, it is characterized in that, described system also comprises: infrared communication interface, while being used for the communication disruption between described GPRS module and described arm processor, the historical data of the result of described arm processor is sent.

4. intelligent electric energy meter operating state monitoring system as claimed in claim 3, is characterized in that, described system also comprises: real-time timepiece chip, for the synchro system time, it disposes button cell.

5. intelligent electric energy meter operating state monitoring system as claimed in claim 4, is characterized in that, described liquid crystal display is LED or LCD liquid crystal display, and it is for showing running status, communications status.

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