CN201421637Y - Electric Energy Meter Terminal Prepayment System Based on Carrier Communication - Google Patents
Electric Energy Meter Terminal Prepayment System Based on Carrier Communication Download PDFInfo
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- CN201421637Y CN201421637Y CN2009201383867U CN200920138386U CN201421637Y CN 201421637 Y CN201421637 Y CN 201421637Y CN 2009201383867 U CN2009201383867 U CN 2009201383867U CN 200920138386 U CN200920138386 U CN 200920138386U CN 201421637 Y CN201421637 Y CN 201421637Y
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Abstract
本实用新型公开一种基于载波通信的电能表终端预付费系统，包括预付费终端和电能表，其特征点为预付费终端通过火线和零线与电能表相连，预付费终端与电能表之间通过电力线载波通信或采用485通信。预付费终端包括处理芯片、LCD显示屏、载波通信模块、射频天线模块，在处理芯片外部相应的功能引脚上连接有液晶显示屏、载波通信模块和射频天线模块；所述的电能表，包括主处理芯片、电能计量模块、载波通信模块和ESAM模块，在主处理芯片外部相应的功能引脚上连接有电能计量模块、载波通信模块、ESAM模块。预付费终端通过电力线外接电能表；电能表的ESAM模块保证载波通信的安全性，运用电力线载波通信无需架设其它网络成本也较低。
The utility model discloses a prepayment system for electric energy meter terminals based on carrier communication, which includes a prepayment terminal and an electric energy meter. Through power line carrier communication or 485 communication. The prepaid terminal includes a processing chip, an LCD display, a carrier communication module, and a radio frequency antenna module, and the corresponding function pins outside the processing chip are connected with a liquid crystal display, a carrier communication module and a radio frequency antenna module; the electric energy meter includes The main processing chip, the electric energy metering module, the carrier communication module and the ESAM module are connected with the electric energy metering module, the carrier communication module and the ESAM module on the corresponding function pins outside the main processing chip. The prepaid terminal is externally connected to the electric energy meter through the power line; the ESAM module of the electric energy meter ensures the safety of the carrier communication, and the use of the power line carrier communication does not need to set up other networks and the cost is low.
Description
Technical field:
The utility model relates to a kind of intelligent payment system, relates in particular to a kind of terminal payment system based on carrier communication and radio frequency card.
Background technology:
Present domestic ammeter installation site is than higher, often is locked in the table case, and the user needs cat ladder or opens the table case and just can swipe the card and purchase electricity and check the electricity consumption situation, has brought a lot of inconvenience to the user like this.
Summary of the invention:
The purpose of this utility model is, at above-mentioned shortcoming, provides a kind of electric energy meter terminal payment system based on carrier communication based on carrier communication and radio frequency card.
The purpose of this utility model is to realize like this, described electric energy meter terminal payment system based on carrier communication, comprise prepaid terminal and electric energy meter, its design feature is that prepaid terminal links to each other with electric energy meter with zero line by live wire, between prepaid terminal and the electric energy meter by power line carrier communication or adopt RS485 to communicate by letter.
The purpose of this utility model also can be achieved through the following technical solutions, described electric energy meter terminal payment system based on carrier communication, its characteristics are that described prepaid terminal is made up of power circuit, process chip, LCD display, carrier communication module and radio-frequency antenna circuit, are connected with LCD display, carrier communication module and radio-frequency antenna circuit on the outside function corresponding pin of process chip; Described electric energy meter is a carrier electric energy meter, carrier electric energy meter comprises main process chip, liquid crystal display, carrier communication module, ESAM module and electric energy metrical module, is connected with electric energy metrical module, liquid crystal display, carrier communication module and ESAM module on the outside function corresponding pin of main process chip.Described electric energy meter terminal payment system based on carrier communication, its characteristics are that prepaid terminal is the prepaid terminal that adopts the contactless technical intelligence card of 13.56MHz.
The utility model has following advantage with original prepaid card epiphase ratio:
1) user can purchase electricity and operation such as inquiry grade to ammeter at prepaid terminal, has avoided the danger of artificial cat ladder and has opened the trouble of panel box.
2) adopt ESAM encrypting module assurance user profile and purchase electric data security.
3) adopt power line carrier communication, need not set up other circuit, convenient and reliable.
4) adopt contact type intelligent card, contact type intelligent card uses rapidly, convenience, needs to safeguard prepaid terminal hardly, and smart card can not wear and tear yet.
5) performance of the utility model system aspect practicality is comparatively outstanding, to need not to set up other network cost also lower for the utilization power line carrier communication, based on the proposition of the terminal payment system notion of carrier communication and radio frequency card the popularization of prepaid card table had bigger meaning.
Description of drawings:
Fig. 1 is the schematic diagram of prepaid terminal of the present utility model.
Fig. 2 is an electric energy meter schematic diagram of the present utility model.
Fig. 3 is a system of the present utility model connection layout.
Embodiment:
Below in conjunction with drawings and Examples the utility model is elaborated:
As Fig. 1, Fig. 2, shown in Figure 3, the electric energy meter terminal payment system based on carrier communication described in the utility model, it comprises prepaid terminal and electric energy meter two partly, prepaid terminal connects electric energy meter by under the line of electric force.
As shown in Figure 1, described prepaid terminal is made up of power circuit, process chip, LCD display, carrier communication module, radio-frequency antenna circuit etc., process chip is as adopting MCU, mainly finish radio communication, liquid crystal display shows, control function such as carrier communication, the radio-frequency antenna circuit can adopt radio frequency antenna module, power circuit comprises power transformer, bridge rectifier filter circuit and 7805 voltage stabilizing chips, power transformer time fraction two-way, the one tunnel obtains voltage VDD and voltage VCC for MCU and radio frequency antenna module through bridge rectifier filtering and 7805 voltage stabilizings; Another road is through bridge rectifier filtering and 7805 voltage stabilizings power supply carrier communication module, and carrier communication module can adopt PLCI36-III.Be connected with LCD display, carrier communication module and radio-frequency antenna circuit on the outside function corresponding pin of process chip, prepaid terminal adopts the carrier communication mode, possesses and reads the smart card that adopts the contactless technology of 13.56MHz.
Described electric energy meter as shown in Figure 2, comprises main process chip, liquid crystal display, carrier communication module, ESAM module, electric energy metrical part, power circuit etc.Main process chip can adopt MCU; it links to each other with ESAM module (being embedded safety module); embedded ESAM module has key authentication; in communication, support Single DES, the Triple DES algorithm of the approval of multiple safety protecting mechanism, the multiple secure access mode of support and authority, support People's Bank of China; carry out encrypting and authenticating between subscriber card and the ESAM module, guarantee user profile and purchase electric data security.Carrier communication module adopts PLCI36-III, and electric energy metrical partly comprises electric energy computation chip, and electric energy computation chip adopts ADE7755.Power circuit also will be powered to electric energy computation chip except the main process chip of powering, ESAM module, carrier communication module.On the outside function corresponding pin of main process chip, be connected with electric energy metrical module, carrier communication module, ESAM module.
System's connection layout as shown in Figure 3, a prepaid terminal 1 can articulate many electric energy meters 2, all embedded ESAM authentication module of each carrier electric energy meter provides the IC-card level other safeguard protection for it; Prepaid terminal links to each other with electric energy meter with zero line N by live wire L, and live wire L and zero line N see illustrated in figures 1 and 2.The all embedded ESAM authentication module of each carrier electric energy meter provides the IC-card level other safeguard protection for it.By power line carrier communication, provide cost savings greatly between prepaid terminal 1 and the electric energy meter 2, if certainly without power line carrier, also can adopt RS485 communication, system has reserved the RS485 interface.
Principle of work: when the user when prepaid terminal is swiped the card, at first carry out the authentication and authorization process of subscriber card by power line carrier communication: in ammeter, we embed security module ESAM module and finish authentication and authorization to subscriber card, to guarantee the safety control of sale of electricity link and power supply link.Authentication is meant the legal identity authentication between subscriber card and the ammeter (ESAM module), authorizes to be meant by reaching certain operating right after the specific authentication.Authentication and authorization is to be carried out through specific mathematical computing flow process by various keys that treasure in it and cryptographic algorithm between subscriber card and the ESAM.By the meritorious electric weight of power line carrier communication with ammeter, information such as remaining sum are sent to prepaid terminal by back ammeter master process chip in authentication, and the user can view these information on the liquid crystal display of prepaid terminal; Simultaneously can be purchasing in the ESAM module that electric data write corresponding ammeter on the subscriber card by power line carrier communication.When subscriber card and ESAM carry out data transmission; do not monitored, intercept and distort in order to protect significant data; guarantee the validity and the integrality of data; be necessary the transmission data are encrypted and protected; route protection is to be finished by cryptographic algorithm and route protection key in the subscriber card (or ESAM), and the route protection key is to be determined when the initialization by power supply administration.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201383867U CN201421637Y (en) | 2009-05-20 | 2009-05-20 | Electric Energy Meter Terminal Prepayment System Based on Carrier Communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201383867U CN201421637Y (en) | 2009-05-20 | 2009-05-20 | Electric Energy Meter Terminal Prepayment System Based on Carrier Communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421637Y true CN201421637Y (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201383867U Expired - Lifetime CN201421637Y (en) | 2009-05-20 | 2009-05-20 | Electric Energy Meter Terminal Prepayment System Based on Carrier Communication |
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| CN (1) | CN201421637Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012097489A1 (en) * | 2011-01-19 | 2012-07-26 | 四川电力科学研究院 | Intelligent electric meter centralized recharging terminal and control method thereof |
| CN103995163A (en) * | 2014-05-13 | 2014-08-20 | 国家电网公司 | Prepayment watt hour meter by utilizing radio-frequency technology for communication and electric energy information processing method |
| CN108717173A (en) * | 2018-05-15 | 2018-10-30 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | A kind of method that intelligent electric energy meter data are traced to the source |
-
2009
- 2009-05-20 CN CN2009201383867U patent/CN201421637Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012097489A1 (en) * | 2011-01-19 | 2012-07-26 | 四川电力科学研究院 | Intelligent electric meter centralized recharging terminal and control method thereof |
| CN103995163A (en) * | 2014-05-13 | 2014-08-20 | 国家电网公司 | Prepayment watt hour meter by utilizing radio-frequency technology for communication and electric energy information processing method |
| CN108717173A (en) * | 2018-05-15 | 2018-10-30 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | A kind of method that intelligent electric energy meter data are traced to the source |
| CN108717173B (en) * | 2018-05-15 | 2020-12-18 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | Intelligent electric energy meter data tracing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: WANGNENG SCIENCE-TECHNOLOGY DEVELOPMENT CO., LTD., FUJIAN Effective date: 20131108 Owner name: WANGNENG SCIENCE-TECHNOLOGY DEVELOPMENT CO., LTD., Effective date: 20131108 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350003 FUZHOU, FUJIAN PROVINCE TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131108 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Fujian Wangneng Technology Development Co., Ltd. Address before: Software Park B District No. 89 350003 Fujian city of Fuzhou Province Copper Road Road No. 7 building software Patentee before: Fujian Wangneng Technology Development Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100310 |