CN202421329U - in-SIM (subscriber identity module) technique based GPRS (general packet radio service) network energy meter - Google Patents
in-SIM (subscriber identity module) technique based GPRS (general packet radio service) network energy meter Download PDFInfo
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- CN202421329U CN202421329U CN2011205487612U CN201120548761U CN202421329U CN 202421329 U CN202421329 U CN 202421329U CN 2011205487612 U CN2011205487612 U CN 2011205487612U CN 201120548761 U CN201120548761 U CN 201120548761U CN 202421329 U CN202421329 U CN 202421329U
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Abstract
The utility model provides an in-SIM (subscriber identity module) technique based GPRS (general packet radio service) network energy meter. The energy meter comprises a base meter and a GPRS module; the base meter comprises an electric quantity collecting module, a measuring module, a main controller and a power supply module; a neutral line and a live line of the electric grid are connected into the electric quantity collecting module and the power supply module; the electric quantity collecting module, the measuring module and the main controller are sequentially in communication connection; and the power supply module is electrically connected at the main controller and the GPRS module for providing working voltage to the main controller and the GPRS module. The electric quantity collecting module performs analogue sampling to the voltage and the current of the electric grid, converts the voltage and the current into digital signals, and transmits the digital signals to the measuring module to calculate the electric quantity; the measuring module transmits the calculated electric quantity data to the main controller so as to process the data; the main controller is connected to the GPRS module; the GPRS module comprises an SIM (subscriber identity module) module; the SIM module is coupled into the GPRS module; and the main controller and the GPRS (general packet radio service) module are in communication through a serial interface.
Description
Technical field
The utility model relates to the electric energy metrical field, more particular it, the utility model relates to the GPRS network electric energy meter of a kind of inSIM of employing technology.
Background technology
Developing rapidly of prior art makes electric energy measurement instrument possess multiple communication transfer function; And the GPRS network electric energy meter appearred; It is the combination of the GPRS communication technology and ammeter technology; He combines multifunctional electric energy meter and GPRS communication module, forms the electric power meter with wireless communication ability.Usually, the GPRS network electric energy meter is made up of base table and GPRS wireless communication module two parts.Use the SIM of the plastic material that mobile phone operators (for example move, UNICOM, telecommunications etc.) provides, cooperate the GPRS wireless communication module to realize telecommunication.
Yet; All be provided with the SIM interface in the present GPRS communication module; Patent CN201837651 discloses a kind of GPRS communication module of electric energy meter; Its SIM interface to prior art improves, and has avoided having improved the compatibility of GPRS module because of the skimble-scamble defective of existing standard stipulations.But it should be noted that; The storage and the operating temperature range of electric energy meter communication module are narrow, and storage temperature is-20 ℃ to+85 ℃, and working temperature is+10 ℃ to+40 ℃; Can't reach electric energy meter-40 ℃ requirement to+70 ℃ working temperature; Particularly out of doors, be easy to the situation that SIM low temperature can't be worked occur, thereby cause communication unsuccessful.Simultaneously, the IC chip on the SIM is directly exposed to the surface, and oxidized easily, corrosion perhaps receives external force to cause damage, causing communication unsuccessful equally.Occur loose contact easily between SIM and the SIM seat, thereby cause communication unsuccessful.
The utility model content
The utility model is intended to solve the deficiency of prior art; A kind of GPRS network power table based on the inSIM technology is proposed; It comprises base table and GPRS module, and base table comprises electric quantity acquisition module, metering module, master controller and power module, and electrical network zero line and live wire insert said electric quantity acquisition module and power module; Said electric quantity acquisition module, metering module, master controller communication successively connect; Said power module is electrically connected on master controller, GPRS module and WV is provided for it, and wherein said electric quantity acquisition module carries out analog sampling and converts digital signal into line voltage and electric current, digital data transmission is carried out electric weight to metering module calculate; Said metering module is transferred to master controller with the electric quantity data that calculates and carries out data processing; Said master controller communication is connected to the GPRS module, it is characterized in that: said GPRS module comprises sim module, and said sim module is coupled in the GPRS module.
Wherein, be to adopt serial mode to carry out communication between master controller and the GPRS module.
Owing to adopted described technical scheme, the beneficial effect of the utility model:
1, uses novel GPRS wireless communication module, abandon the parts of plastics on the conventional SIM, silicon chip is directly embedded the module of wireless CPU, evaded all kinds of problems of bringing by SIM;
2, solved because the problem of GPRS wireless cisco unity malfunction under low-temperature condition that conventional SIM causes.Novel GPRS module can be in-40 ℃～+ 85 ℃ temperature ranges operate as normal, increased the scope of GPRS wireless telecommunications greatly;
3, because SIM is built-in, solve the problem of the loose contact of SIM and GPRS module upper blocking seat, increased the stability of GPRS wireless telecommunications greatly;
4, because SIM is built-in, solved that SIM is oxidized, the problem of burn into damage, solved the hot-swappable burning card problem of bringing of SIM simultaneously.Reduce cost, no longer need the peripheral plastics of SIM, low-carbon environment-friendly.
Description of drawings
Fig. 1 is the primary structure synoptic diagram as the GPRS network three-phase electric energy meter of the utility model preferred embodiment.
Embodiment
With reference to Fig. 1, the utility model is based on the GPRS network three-phase electric energy meter of inSIM technology, and it comprises base table 10 and GPRS module 20.Base table 10 comprises electric quantity acquisition module 11, metering module 12, master controller 13 and power module 14, and electrical network zero line N and live wire L insert electric quantity acquisition module 11 and power module 14.Electric quantity acquisition module 11, metering module 12, master controller 13 communication successively connect, and power module 14 is electrically connected on master controller 13, GPRS module 20 and the WV of 5V and 2V is provided respectively for it.Wherein, 11 pairs of electrical network three-phase voltage U of electric quantity acquisition module
A, U
B, U
CAnd electric current I
A, I
B, I
CCarry out analog acquisition and convert digital voltage into and current signal, carry out electric weight for metering module 12 these digital data transmission and calculate, metering module 12 is transferred to master controller 13 with the electric quantity data that calculates and carries out data processing.Master controller 13 communications are connected to GPRS module 20.
As preferably, GPRS module 20 comprises sim module 21, and said sim module 21 is coupled in the GPRS module 20.
Wherein, be to adopt serial mode to carry out communication between master controller 13 and the GPRS module 20.
Base table 10 can be realized the basic function of common three-phase multifunctional electrical energy meter, under the situation that does not insert GPRS module 20, does not influence its use as common multifunctional electric energy meter.It carries out real-time sampling, processing and storage to ac analog; Realize functions such as electric energy metrical, requirement are measured, rate, load curve calculating and storage again, data-frozen, logout, multiple rate, can realize that the user purchases functions such as electric control, load control, Long-distance Control in advance.Possess RS 485 communication interfaces, infrared communication interface, G PRS communication module interface etc., to realize the copy reading and the setting of data.Base table 10 also has local LCD, can support functions such as local repeating query demonstration and keying demonstration.
The novel GPRS network electric energy meter of the utility model adopts advanced inSIM know-why; SIM is coupled directly in the GPRS communication module; Realized a kind of novel wireless CPU unit module, removed the deck and the interface structure of SIM, practiced thrift material and strengthened the communication reliability.Should understand, the preferred embodiment of the utility model is merely the usefulness that illustrates, and is not to be the restriction to the utility model technical scheme.
Claims (2)
1. GPRS network electric energy meter based on inSIM technology; It comprises base table and GPRS module; Said base table comprises electric quantity acquisition module, metering module, master controller and power module; Electrical network zero line and live wire insert said electric quantity acquisition module and power module, and said electric quantity acquisition module, metering module, master controller communication successively connect, and said power module is electrically connected on master controller, GPRS module and WV is provided for it; Wherein said electric quantity acquisition module carries out analog sampling and converts digital signal into line voltage and electric current; Digital data transmission is carried out electric weight to metering module calculate, said metering module is transferred to master controller with the electric quantity data that calculates and carries out data processing, and said master controller communication is connected to the GPRS module; It is characterized in that: said GPRS module comprises sim module, and said sim module is coupled in the GPRS module.
2. the GPRS network electric energy meter based on the inSIM technology as claimed in claim 1 is characterized in that: be to adopt serial mode to carry out communication between said master controller and the GPRS module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205487612U CN202421329U (en) | 2011-12-23 | 2011-12-23 | in-SIM (subscriber identity module) technique based GPRS (general packet radio service) network energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205487612U CN202421329U (en) | 2011-12-23 | 2011-12-23 | in-SIM (subscriber identity module) technique based GPRS (general packet radio service) network energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421329U true CN202421329U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205487612U Expired - Fee Related CN202421329U (en) | 2011-12-23 | 2011-12-23 | in-SIM (subscriber identity module) technique based GPRS (general packet radio service) network energy meter |
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| CN (1) | CN202421329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901091A (en) * | 2019-04-03 | 2019-06-18 | 广西电网有限责任公司南宁供电局 | It is a kind of can remote diagnosis capacitor and inductor tester |
-
2011
- 2011-12-23 CN CN2011205487612U patent/CN202421329U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901091A (en) * | 2019-04-03 | 2019-06-18 | 广西电网有限责任公司南宁供电局 | It is a kind of can remote diagnosis capacitor and inductor tester |
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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: 20120905 Termination date: 20121223 |