CN211043648U

CN211043648U - Detection device for 485 port of intelligent electric energy meter

Info

Publication number: CN211043648U
Application number: CN201920586092.4U
Authority: CN
Inventors: 周仁俊; 盛群; 马骏达; 施红星; 应英俊; 周爱群; 胡美意; 施里洵; 郁伟杰; 杜少华; 章晓敏; 张有春
Original assignee: State Grid Zhejiang Yongkang Power Supply Co ltd
Current assignee: State Grid Zhejiang Electric Power Co., Ltd. Yongkang Power Supply Co.
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-07-17
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a detection device for 485 port of an intelligent electric energy meter, which comprises a singlechip, a liquid crystal display module, a touch module, a serial port and 485 conversion module and a power module; the liquid crystal display module, the touch module, the serial port and 485 conversion module and the power supply module are all electrically connected with the single chip microcomputer. The utility model discloses still include clock module, clock module is connected with the monolithic is electromechanical. The utility model discloses in, the singlechip chip is from taking the serial ports and making serial ports and 485 conversion module and intelligent ammeter's 485 port communications, sends data reading and writing instruction and receives the data that intelligent ammeter sent back to with above-mentioned data display on the liquid crystal display module. The utility model has the characteristics of convenient operation and saving cost.

Description

Detection device for 485 port of intelligent electric energy meter

Technical Field

The utility model belongs to the technical field of intelligent electric energy meter detects technique and specifically relates to a convenient operation practices thrift the detection device who is used for intelligent electric energy meter 485 port of cost.

Background

The intelligent electric meter is an intelligent terminal of an intelligent power grid, and has intelligent functions such as bidirectional multi-rate metering function, user side control function, bidirectional data communication function of multiple data transmission modes, electricity larceny prevention function and the like besides the metering function of basic electricity consumption of the traditional electric meter. The 485 port of the electric energy meter is used as a data exchange bridge, receives instructions from the electricity utilization information acquisition system and sends data to the electricity utilization information acquisition system. The quality of the 485 port of the electric energy meter directly relates to the success or failure of data acquisition, currently, in the prior art, the 485 port of the electric energy meter is generally detected by combining a special test program on a meter reading machine (electric energy meter data acquisition equipment, similar to a PDA (personal digital assistant), namely a palm computer) with corresponding test accessories, however, the cost performance of the meter reading machine as a detection instrument is not high due to the characteristics of multiple manufacturers, non-universal program accessories, high cost, single function and the like of the meter reading machine.

Therefore, it is necessary to design a detection device for 485 ports of intelligent electric energy meters, which is convenient to operate and saves cost.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art for carry out the device that detects to electric energy meter 485 port, there is the problem of inconvenient, with high costs, the function singleness of operation, provide a convenient operation, practice thrift the detection device who is used for intelligent electric energy meter 485 port of cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a detection device for a 485 port of an intelligent electric energy meter comprises a single chip microcomputer, a liquid crystal display module, a touch module, a serial port and 485 conversion module and a power supply module; the liquid crystal display module, the touch module, the serial port and 485 conversion module and the power supply module are all electrically connected with the single chip microcomputer.

The utility model discloses in, the singlechip chip is from taking the serial ports and making serial ports and 485 conversion module and intelligent ammeter's 485 port communications, sends data reading and writing instruction and receives the data that intelligent ammeter sent back to with above-mentioned data display on the liquid crystal display module. The utility model has the characteristics of convenient operation and saving cost.

Preferably, the single chip microcomputer is AT89S52 in model.

Preferably, the utility model discloses still include the clock module, the clock module is connected with the monolithic is electromechanical.

Preferably, the clock module comprises a clock chip DS1302, a crystal oscillator Y2 and a battery pack BT 1; one end of the crystal oscillator Y2 is electrically connected with the 2 nd pin of the clock chip DS1302, the other end of the crystal oscillator Y2 is electrically connected with the 3 rd pin of the clock chip DS1302, the 8 th pin of the clock chip DS1302 is electrically connected with the positive electrode of the battery pack BT1, and the 4 th pin of the clock chip DS1302 and the negative electrode of the battery pack BT1 are both grounded. Constitute clock circuit such as clock chip and group battery, to the utility model provides a date and time data, and the utility model discloses keep away the time under the condition that the power was closed.

Preferably, the utility model also comprises a crystal oscillator Y1, a capacitor C1 and a capacitor C2; one end of the crystal oscillator Y1 is electrically connected with a 18 th pin of the capacitor C1 and the singlechip AT89S52 respectively, and the other end of the crystal oscillator Y1 is electrically connected with a 19 th pin of the capacitor C2 and the singlechip AT89S52 respectively; the capacitor C1 is electrically connected with the capacitor C2. The capacitor C1 and the capacitor C2 are load capacitors of the crystal oscillator Y1.

Therefore, the utility model discloses following beneficial effect has: (1) compared with a meter reading machine or a PDA detection, the utility model saves more cost; (2) the portable multifunctional electric tester is provided with a data interface and a corresponding function button, and is simple to operate and high in detection accuracy.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

fig. 2 is a partial circuit diagram of the present invention.

In the figure: the intelligent electric energy meter comprises a single chip microcomputer 1, a liquid crystal display module 2, a touch module 3, a serial port and 485 conversion module 4, a power module 5, a clock module 6 and an intelligent electric energy meter 7.

Detailed Description

The invention will be further described with reference to the following detailed description and accompanying drawings:

example (b): the detection device for the 485 port of the intelligent electric energy meter shown in fig. 1 comprises a single chip microcomputer 1, a liquid crystal display module 2, a touch module 3, a serial port and 485 conversion module 4 and a power module 5; the liquid crystal display module, the touch module, the serial port and 485 conversion module and the power supply module are all electrically connected with the single chip microcomputer. The liquid crystal display module is specifically a liquid crystal display screen, and the touch module is specifically a touch key circuit. The utility model discloses still include clock module 6, clock module is connected with the monolithic is electromechanical.

As shown in fig. 2, the single chip microcomputer of the present invention adopts AT89S52 as the model. Further, the clock module includes a clock chip DS1302, a crystal oscillator Y2, and a battery pack BT 1; one end of the crystal oscillator Y2 is electrically connected with the 2 nd pin of the clock chip DS1302, the other end of the crystal oscillator Y2 is electrically connected with the 3 rd pin of the clock chip DS1302, the 8 th pin of the clock chip DS1302 is electrically connected with the positive electrode of the battery pack BT1, and the 4 th pin of the clock chip DS1302 and the negative electrode of the battery pack BT1 are both grounded. Clock chip and group battery BT1 etc. constitute clock circuit, to the utility model provides date and time data, and the utility model discloses keep away the time under the condition that the power was closed.

The utility model also comprises a crystal oscillator Y1, a capacitor C1 and a capacitor C2; one end of the crystal oscillator Y1 is electrically connected with a 18 th pin of the capacitor C1 and the singlechip AT89S52 respectively, and the other end of the crystal oscillator Y1 is electrically connected with a 19 th pin of the capacitor C2 and the singlechip AT89S52 respectively; the capacitor C1 is electrically connected with the capacitor C2. The capacitor C1 and the capacitor C2 are load capacitors of the crystal oscillator Y1.

In addition, in fig. 2, pin header J3 is used to connect the serial port and 485 conversion module, and pin header J6 is used to connect the lcd.

The utility model discloses a theory of operation and mode as follows:

when the 485 port of the intelligent electric energy meter needs to be detected, the serial port and the 485 conversion module in the utility model are electrically connected with the 485 port of the intelligent electric energy meter 7, the power switch of the device is turned on, the device automatically reads the asset number of the electric energy meter, the internal clock time of the electric energy meter and the internal battery voltage of the electric energy meter after initialization, and the quality of the 485 port of the intelligent electric energy meter is judged according to whether corresponding data can be read or not; the A, B, C phase voltage and current of the electric energy meter can be read by pressing the next page in the touch keys, when the electric energy meter is a single-phase meter, the B, C phase is displayed as FFF, the total, peak, valley and other readings of the electric energy meter can be read by pressing the next page, and the corresponding numerical value can be read again and displayed by pressing the refresh key in the touch keys.

It should be understood that the present embodiment is only for illustrating the present invention and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims

1. A detection device for a 485 port of an intelligent electric energy meter is characterized by comprising a single chip microcomputer (1), a liquid crystal display module (2), a touch module (3), a serial port and 485 conversion module (4) and a power module (5); the liquid crystal display module, the touch module, the serial port and 485 conversion module and the power supply module are all electrically connected with the single chip microcomputer.

2. The device as claimed in claim 1, wherein the type of the single chip microcomputer is AT89S 52.

3. The device for detecting the 485 port of the intelligent electric energy meter according to claim 2, further comprising a clock module (6), wherein the clock module is electrically connected with the single chip microcomputer.

4. The device as claimed in claim 3, wherein the clock module comprises a clock chip DS1302, a crystal oscillator Y2 and a battery pack BT 1; one end of the crystal oscillator Y2 is electrically connected with the 2 nd pin of the clock chip DS1302, the other end of the crystal oscillator Y2 is electrically connected with the 3 rd pin of the clock chip DS1302, the 8 th pin of the clock chip DS1302 is electrically connected with the positive electrode of the battery pack BT1, and the 4 th pin of the clock chip DS1302 and the negative electrode of the battery pack BT1 are both grounded.

5. The detecting device for the 485 port of the intelligent electric energy meter according to claim 2, 3 or 4, further comprising a crystal oscillator Y1, a capacitor C1 and a capacitor C2; one end of the crystal oscillator Y1 is electrically connected with a 18 th pin of the capacitor C1 and the singlechip AT89S52 respectively, and the other end of the crystal oscillator Y1 is electrically connected with a 19 th pin of the capacitor C2 and the singlechip AT89S52 respectively; the capacitor C1 is electrically connected with the capacitor C2.