CN202033893U

CN202033893U - Wireless electricity meter reader

Info

Publication number: CN202033893U
Application number: CN2011201575879U
Authority: CN
Inventors: 童世华; 胡云冰; 龚小勇; 吴焱岷
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2011-11-09
Anticipated expiration: 2021-05-18

Abstract

A wireless electricity meter reader comprises a signal collector and a bluetooth handheld device. The signal collector and the bluetooth handheld device respectively comprise a microprocessor, a power supply, a bluetooth module, keys, a JTAG (Joint Test Action Group) interface, a clock and a resetter; in addition, the signal collector further comprises a voltage collection module, an A/D (analog/digital) conversion module, an LED (light-emitting diode) display module and a 485 interface, and the bluetooth handheld device further comprises an LCD (liquid crystal display) module and a storage module. The microprocessor is used as a central controller to control the bluetooth module to send and receive data. The wireless electricity meter reader adopts bluetooth wireless communication technology to collect on-site power consumption data, thus having the advantages of stable property, convenient and fast transmission, strong mobility and the like. The utility model provides a wireless electricity meter reader for a power department, which has low cost, low power consumption, small damage to human body and strong interference resistance and adopts frequency modulation technology.

Description

A kind of radio energy meter-copy device

Technical field

The utility model relates to communication and industrial automation control field, refers more particularly to electric power field data monitoring device.

Background technology

Present electric energy meter-copy device mostly is wireline equipment, and the energy consumption measure fee collection mostly adopts to register one's residence month by month or every other month tests the mode of table charge, not only expends great amount of manpower, and also is a kind of interference to resident living.And at some working environments complicated and changeable, if any radiation or harmful gas etc. environment, it is quite dangerous and inconvenient that data acquisition is carried out at the people scene.At this moment adopt the Bluetooth wireless technology of radio energy meter-copy device that on-the-spot power consumption data are gathered and have stable performance, transmit convenient and swift, advantage such as movability is strong.

Summary of the invention

Technical problem to be solved in the utility model provide low cost, low-power consumption, little to human body harm, adopt frequency modulation technology, anti-interference strong radio energy meter-copy device.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of radio energy meter-copy device is characterized in that: this radio energy meter-copy device comprises signal picker and two parts of bluetooth hander, wherein:

Described signal picker comprises voltage acquisition module, A/D modular converter, microprocessor I, power supply I, LED display module, bluetooth module I, button I, clock I, I resets; The output terminal of described voltage acquisition module is connected with the input end of A/D modular converter; A/D modular converter, power supply I, LED display module, button I, clock I, the I that resets receive microprocessor I respectively; Described bluetooth hander comprises bluetooth module II, power supply II, LCD display module, button II, memory module, microprocessor II, clock II, II resets; Power supply II, LCD display module, button II, memory module, clock II, the II that resets are received the microprocessor II respectively.

The serial ports of bluetooth module I, bluetooth module II employing asynchronous serial communication mode and microprocessor I, microprocessor II joins; Signal picker and bluetooth hander communicate the wireless transmission that data are realized in agreement identification pairing back by bluetooth module I and bluetooth module II.

Described microprocessor I is external in order to 485 interfaces that use and the jtag interface I that realizes online programming and chip testing in the future, and described microprocessor II is external and the jtag interface II of jtag interface I identical function.

The voltage signal that voltage acquisition module is gathered, handle through input microprocessor after the A/D module processing, microprocessor sends to bluetooth module with the data of handling well by serial ports, before bluetooth module carries out data transmission, need main end (signal picker) to searching for pairing from end (bluetooth hander) equipment, form the path of link, just the data that obtain can be passed to the bluetooth module of bluetooth hander afterwards, make control terminal obtain that the electric supply meter data are stored and on the LCD display module, show this user's ammeter situation.

The utility model has the advantages that: (1) communication mode is flexible, and antijamming capability is strong, and is safe and reliable; (2) adaptability is strong. can be used for the short-range communication of portable set; (3) be fit to the collection and the observing and controlling of mass data, can be applicable to the wireless measurement, protection of electric system performance parameter, aspect such as control and power station synthetical automation automatically.

Description of drawings

Fig. 1 is a radio energy meter-copy device structure principle chart;

Fig. 2 is the signal picker software flow pattern;

Fig. 3 is a bluetooth hander software flow pattern;

Fig. 4 is a signals collecting serial data state flow chart;

Among the figure: the 1-signal picker; 2-bluetooth hander; 3-comprises voltage acquisition module; 4-A/D modular converter; 5-power supply I; 6-LED display module; 7-bluetooth module I; 8-microprocessor I; 9-button I; 10-clock I; The 11-I that resets; 12-bluetooth module II; 13-power supply II; 14-LCD display module; 15-button II; The 16-memory module; The 17-II that resets; 18-clock II; 19-microprocessor II; The 20-485 interface; 21-JTAG interface I; 22-jtag interface II.

Embodiment

Referring to Fig. 1, the utility model comprises signal picker 1 and 2 two parts of bluetooth hander, wherein:

Described signal picker 1 comprises voltage acquisition module 3, A/D modular converter 4, microprocessor I 8, power supply I 5, LED display module 6, bluetooth module I 7, button I 9, clock I 10, I 11 resets; The output terminal of described voltage acquisition module 3 is connected with the input end of A/D modular converter 4; A/D modular converter 4, power supply I 5, LED display module 6, button I 9, clock I 10, the I 11 that resets receive microprocessor I 8 respectively; Described bluetooth hander 2 comprises bluetooth module II 12, power supply II 13, LCD display module 14, button II 15, memory module 16, microprocessor II 19, clock II 18, II 17 resets; Power supply II 13, LCD display module 14, button II 15, memory module 16, clock II 18, the II that resets 17 are received microprocessor II 19 respectively.

The serial ports of described bluetooth module I 7, bluetooth module II 12 employing asynchronous serial communication modes and microprocessor I 8, microprocessor II 19 joins; Described microprocessor I 8 is external in order to 485 interfaces 20 that use and the jtag interface I 21 that realizes online programming and chip testing in the future, and described microprocessor II 19 is external and the jtag interface II 22 of jtag interface I 21 identical functions.

Described voltage acquisition module 3(employing LM1117-5V) voltage signal of gathering, process A/D modular converter 4(employing AD0809) handling back input microprocessor 18 handles, microprocessor 18 sends to bluetooth module 17 with the data of handling well by serial ports, before bluetooth module 17 carries out data transmission, need main end (signal picker 1) to searching for pairing from end (bluetooth hander 2) equipment, form the path of link, just the data that obtain can be passed to the bluetooth module II 12 of bluetooth hander 2 afterwards, make control terminal obtain that the electric supply meter data are stored and on LCD display module 14, show this user's ammeter situation.Microprocessor 18 and microprocessor II 19 8 series the most a single chip computer AT MG644 of high configuration of adopting atmel corps wherein, bluetooth module I 7 and bluetooth module II 12 all adopt GCO2-dip, the I 11 and the II 17 that resets of resetting all adopts the RC reset circuit, jtag interface I 21 and jtag interface II 22 all adopt WIGGLER 430 JATG chips, memory module 16 adopts CY62256L-70SNC chip extension storage amount, adopts the 4M crystal oscillator to realize clock II 18 and clock I 10 modules.

Referring to Fig. 2, the software section of signal picker has mainly comprised the program of AD conversion, the program of serial port drive, and the writing of the program that shows of button and LED.Program begins to carry out from master routine, the I/O mouth of initialization microprocessor I 8 at first, and AD interrupts, and serial ports interrupts and timer interrupts, and enables total interruption.Then, judge that timer interrupts whether arriving,, see if there is button and press, and judge it is which button is pressed and carried out corresponding instruction then if then button is judged.If timer interrupts not arriving, judge that then AD interrupts whether arriving; AD interrupts arrival and then the numerical value of AD is obtained and assignment, and this value is the data of being gathered; AD interrupts not arriving then carrying out the LED display routine.

Referring to Fig. 3, bluetooth hander 2 mainly carries out the login of password by button operation, can carry out password modification and user profile demonstration after the password login is finished then, if the signal that has signal picker 1 to send then, the interface can sign in to the interface of our passage collection, carries out data presentation here.Comprising the serial port drive program, button, liquid crystal display, I/O mouth, storer supervisor are write.

Referring to Fig. 4, for the communication between collaborative bluetooth hander 2 and the signal picker 1, stipulated one group of identification that software protocol is realized ordering, the process of its whole operation is: at first before bluetooth module I 7 connects, signal picker 1 sends beacon always and goes to seek it and will look for paired devices (bluetooth hander 2), before bluetooth forms path, bluetooth hander 2 can not receive signal, can't feed back to signal picker 1 information, the beacon that always sends of signal picker 1 so, match up to the identification of two bluetooth modules and to finish, return response then, next just can send data bit.

Claims

1. radio energy meter-copy device, it is characterized in that: this radio energy meter-copy device comprises signal picker (1) and (2) two parts of bluetooth hander, wherein:

Described signal picker (1) comprises voltage acquisition module (3), A/D modular converter (4), microprocessor I(8), power supply I(5), LED display module (6), bluetooth module I(7), button I(9), clock I(10), I(11 resets); The output terminal of described voltage acquisition module (3) is connected with the input end of A/D modular converter (4); A/D modular converter (4), power supply I(5), LED display module (6), button I(9), clock I(10), I(11 resets) receive microprocessor I(8 respectively);

Described bluetooth hander (2) comprises bluetooth module II (12), power supply II (13), LCD display module (14), button II (15), memory module (16), microprocessor II (19), clock II (18), the II that resets (17); Power supply II (13), LCD display module (14), button II (15), memory module (16), clock II (18), the II that resets (17) are received microprocessor II (19) respectively;

Bluetooth module I(7), bluetooth module II (12) adopt the asynchronous serial communication mode respectively with microprocessor I(8), the serial ports of microprocessor II (19) joins; Signal picker (1) and bluetooth hander (2) are by bluetooth module I(7) communicate the wireless transmission that data are realized in agreement identification pairing back with bluetooth module II (12).

2. radio energy meter-copy device according to claim 1, it is characterized in that: described microprocessor I(8) external in order to 485 interfaces (20) that use and the jtag interface I(21 of realization online programming and chip testing in the future), described microprocessor II (19) is external and jtag interface I(21) the jtag interface II (22) of identical function.