CN202837392U - Gprs network electric energy meter - Google Patents
Gprs network electric energy meter Download PDFInfo
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- CN202837392U CN202837392U CN 201220460472 CN201220460472U CN202837392U CN 202837392 U CN202837392 U CN 202837392U CN 201220460472 CN201220460472 CN 201220460472 CN 201220460472 U CN201220460472 U CN 201220460472U CN 202837392 U CN202837392 U CN 202837392U
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- electric energy
- energy meter
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- gprs network
- arm processor
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Abstract
The utility model relates to the technical field of electric energy meters and provides a GPRS network electric energy meter. The GPRS network electric energy meter comprises a power supply module, a GPRS module, a storage module, an interface unit, an LED display unit, a three-phase electric energy meter, and an ARM processor. The power supply module, the GPRS module, the storage module, the interface unit, the LED display unit, and the three-phase electric energy meter are all connected with the ARM processor. The GPRS network electric energy meter servers as an electric energy meter.
Description
Technical field
The utility model relates to the electric energy meter technical field, and a kind of GPRS network electric energy meter is provided.
Background technology
Development along with technology, meter reading method is the transformation from on-the-spot manual metering to remote automatic meter reading also, the technology that is used at present checking meter has multiple, such as RS485 bus, infrared and power line carrier etc., these reading techniques are relatively ripe, but use its limitation arranged respectively, check meter and to connect up and the increase investment such as the RS485 bus, and transmission range can not be greater than 1200 meters, and infrared copy meter needs artificial scene to check meter, power carrier check meter since electromagnetic interference (EMI) etc. affect limited transmission distance.The GPRS communication technology is ripe, and the network coverage is wide, can be forever online, to charge by flow, and expense is cheap, and is not subjected to the restriction in distance and space, so that very suitable in the application of the industry of checking meter.
Summary of the invention
The utility model provides a kind of GPRS network electric energy meter for the deficiencies in the prior art.
The utility model is by the following technical solutions for achieving the above object:
A kind of GPRS network electric energy meter, it is characterized in that: comprise power module, GPRS module, memory module, interface unit, led display unit, three-phase electric energy meter and arm processor, described power module, GPRS module, memory module, interface unit, led display unit, three-phase electric energy meter all are connected with arm processor.
In the such scheme, described power module comprises the 5V system power supply, and reserve battery and power conversion unit, described 5V system power supply and reserve battery all are connected with power conversion unit, and described power conversion unit connects arm processor.
In the such scheme, described memory module comprises Flash storer and ferroelectric memory, and described Flash storer and ferroelectric memory all are connected with arm processor.
In the such scheme, described interface unit comprises jtag interface, 232 serial ports, 485 serial ports and infrared serial interface, and described jtag interface, 232 serial ports, 485 serial ports and infrared serial interface all are connected with arm processor.
The utlity model has following beneficial effect:
The utility model adopts GPRS network to carry out data transmission, and it is short to have overcome traditional RS485 bus transmission range of checking meter, the defective that infrared copy meter needs artificial scene to check meter.
Description of drawings
Fig. 1 is the utility model system block diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Arm processor adopts the 32-bit microprocessor LPC2138 based on the ARM7TDMI-S kernel.The high speed Flash storer of the embedded 512KB of LPC2138 and the RAM of 32KB have abundant peripheral hardware resource: 2 32 bit timing devices (passage is caught, compared to band); 2 10 8 road ADC; 1 10 DAC; The PWM passage; 47 road GPIO; The external interrupt of 9 edges or level triggers; RTC with independent current source and clock; A plurality of serial line interfaces (UART, I2C, SPI, SSP).It includes vectorial interruptable controller, configurable interrupt priority level and vector address, the Boot load module can be implemented in system/at application programming (ISP/IAP) in the sheet, can realize the CPU operating frequency of 60MHz by PLL in the sheet, have idle and 2 kinds of low-power consumption modes of power down, and can pass through external interrupt wakeup.
The GPRS module adopts the M580z of the side of having, Shenzhen science and technology product, inside modules is integrated ICP/IP protocol stack, have two communication links, the accurate TTL communication port of one road sign, the AT command set of simplifying realizes that by the AT order parameter setting of module and data send.M580 is connected by the serial port of a Transistor-Transistor Logic level with CPU.
Storer, owing to should satisfy " power consumer power information acquisition system communication protocol " with the uplink communication of main website, the class data (real time data), two class data (curve data, statistics) and the three class data (event) that need the storage stipulations to require, particularly curve data requires the data volume of storage large, therefore adopt jumbo flash storer to store two classes and three class data, ferroelectric memory is owing to can be unconfined erasable, so be used for storing real time data and the parameters that needs often renewal.The interface of storer and MPU is the SPI interface.
Serial line interface and JTAG emulated port, 232 serial ports, infrared communication mouth can realize that this locality of module parameter arranges and maintenance, wherein 232 serial ports can be realized, the monitoring of right GPRS module status, but satisfy the data of " power consumer power information acquisition system communication protocol " by 485 serial port copy readings; The JTAG emulated port can be carried out emulation and program burn writing to arm processor.
Power supply status, module that LED indication, LED light are used to refer to module log in state, network service state and protect electricity condition etc.
Three-phase electric energy meter, three-phase electric energy meter is realized data acquisition and the calculating such as electric flux and electric current and voltage.It is connected by a serial port with MPU, communication protocol satisfies the DT/L645 agreement, and module is copy reading three-phase meter data regularly, comprise the real time datas such as electric weight, requirement, voltage, electric current, and with copy reading to data change and store, to satisfy main website to the visiting demand of module.
Claims (4)
1. GPRS network electric energy meter, it is characterized in that: comprise power module, GPRS module, memory module, interface unit, led display unit, three-phase electric energy meter and arm processor, described power module, GPRS module, memory module, interface unit, led display unit, three-phase electric energy meter all are connected with arm processor.
2. a kind of GPRS network electric energy meter according to claim 1, it is characterized in that: described power module comprises the 5V system power supply, reserve battery and power conversion unit, described 5V system power supply and reserve battery all are connected with power conversion unit, and described power conversion unit connects arm processor.
3. a kind of GPRS network electric energy meter according to claim 1, it is characterized in that: described memory module comprises Flash storer and ferroelectric memory, described Flash storer and ferroelectric memory all are connected with arm processor.
4. a kind of GPRS network electric energy meter according to claim 1, it is characterized in that: described interface unit comprises jtag interface, 232 serial ports, 485 serial ports and infrared serial interface, and described jtag interface, 232 serial ports, 485 serial ports and infrared serial interface all are connected with arm processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220460472 CN202837392U (en) | 2012-09-11 | 2012-09-11 | Gprs network electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220460472 CN202837392U (en) | 2012-09-11 | 2012-09-11 | Gprs network electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837392U true CN202837392U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220460472 Expired - Fee Related CN202837392U (en) | 2012-09-11 | 2012-09-11 | Gprs network electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344804A (en) * | 2013-07-16 | 2013-10-09 | 沈阳时尚实业有限公司 | Hot plugging device of GPRS module of three-phase multi-functional table |
-
2012
- 2012-09-11 CN CN 201220460472 patent/CN202837392U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344804A (en) * | 2013-07-16 | 2013-10-09 | 沈阳时尚实业有限公司 | Hot plugging device of GPRS module of three-phase multi-functional table |
| CN103344804B (en) * | 2013-07-16 | 2016-06-22 | 沈阳时尚实业有限公司 | A kind of can the three-phase multi-functional table of warm swap GPRS module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130911 |