CN103810591A - Power purchasing method for mobile phone and portable IC card reader thereof - Google Patents
Power purchasing method for mobile phone and portable IC card reader thereof Download PDFInfo
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- CN103810591A CN103810591A CN201410070817.6A CN201410070817A CN103810591A CN 103810591 A CN103810591 A CN 103810591A CN 201410070817 A CN201410070817 A CN 201410070817A CN 103810591 A CN103810591 A CN 103810591A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/16—Payments settled via telecommunication systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/22—Payment schemes or models
- G06Q20/28—Pre-payment schemes, e.g. "pay before"
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/322—Aspects of commerce using mobile devices [M-devices]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/325—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices using wireless networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
Abstract
The invention discloses a power purchasing method for mobile phone and portable IC card reader thereof, the power purchasing method for mobile phone and portable IC card reader belong to the technique field of data processing system or method applied to electric power distribution supervision purpose. The power purchasing method for mobile phone comprises the steps of building the power purchasing platform for mobile phone, connecting the portable IC card reader, mobile phone and the smart card, surfing the internet with cell phone and recharging the electricity meter; the portable IC card reader comprises a shell and a smart card operation module provided with a communication unit module, a coding unit module, a control unit module and a safety certificate unit module, the communication unit module is connected to the coding unit module, the coding unit module is connected to the control unit module in a double-way junction mode, the control unit module is connected to the safety certificate unit module in a double-way junction mode and connected to the communication unit module, and the safety certificate unit module is connected to the communication unit module in a double-way junction mode. The invention is simple in structure, convenient and fast in operation and use, strong in safety security, convenient in management and reduced in cost for the power supply company.
Description
Technical field
The invention belongs to the data handling system or the method and technology field that are specially adapted for distributing electric power supervision object.
Background technology
The payment of the public public institutions such as electric power, tap water, rock gas is a major issue affecting the livelihood of every family.For many years, for convenient subscriber payment, very many-sided work has been done by all departments unit, but still cannot accomplish convenient payment whenever and wherever possible, therefore, provides a kind of pay charge way that adapts to the current mobile Internet epoch to become a kind of urgent demand.
The read-write equipment of existing contact intelligent card, not only volume is large, and is all to use USB interface or serial ports to be connected and communication with PC mostly, and convenience is inadequate, price is higher.So greatly limit its possibility of promoting huge numbers of families.
Along with the arrival in mobile Internet epoch, mobile phone becomes the new mode of popular accessing Internet, exploitation one can be connected with mobile phone, volume is small and exquisite, the smart card read-write device of quick and safe is paid the fees, and becomes a kind of an urgent demand that user experiences, can safe relieved use of improving service quality, further improve.
Summary of the invention
Technical matters to be solved by this invention is to propose a kind of mobile phone power purchase method and portable card reader/writer thereof, the deficiencies in the prior art are overcome, can realize smart card read-write and mobile phone power purchase, have quick, time-saving and efficiency simple in structure, easy for operation, level security strong, be convenient to the feature of managing and reducing costs.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of mobile phone power purchase method, described method step is as follows:
A, set up mobile phone power purchase platform: build Utilities Electric Co. and Communications service business's the network architecture, user mobile phone is connected with mobile Internet operator by communication network, realize the access of mobile phone terminal;
B, portable card reader/writer is connected with mobile phone and smart card: completing user authentication, and transmit payment load value data to mobile phone power purchase platform, mobile phone power purchase platform is resolved the payment charging request receiving, and process Relational database increasing, change operation, carry out the safe read-write of smart card payment charging information; This portable card reader/writer comprises communication unit, codec unit, control module and safety certification unit, wherein,
Communication unit, the network communication function of realization and mobile phone and smart card, completing user authentication, payment media authentication, cost information inquiry and smart card payment are supplemented with money;
Codec unit, the information that communication unit is obtained is carried out encoding and decoding processing, obtains payment charging information;
Control module, processes the payment charging information that codec unit is obtained;
Safety certification unit, for guaranteeing the safety access of communication unit and control module, and provides safety guarantee to identity information, payment charging information that communication unit and control module obtain.
C, surfing Internet with cell phone operation: log in wireless network, download power purchase software or log in online webpage by electric terminal, carry out power purchase by power purchase software or online webpage, by third party's modes of payments or Communications service business, deduct fees, payment charging information is write in smart card, realize power purchase;
D, ammeter payment: user inserts successful power purchase smart card in ammeter, completes supplementing with money ammeter.
Described steps A mobile phone power purchase platform is the server platform that carries out network interaction with the client of mobile phone, comprising: be that interface server, prepaid electricity selling database server, mobile paying platform front server are trading server, state's net application encipher machine, state's net application service encryption equipment, communication access via telephone line gateway and communication company's payment paying server by networking bus 186 service platforms, company of province access via telephone line gateway, the prepaid electricity selling front server that intercom mutually.
Described prepaid electricity selling front server is that interface server and mobile paying platform front server are between trading server, to be provided with the safety access and data security server that connect by netting twine.
Described in step B, authentication is: send prepaid electricity selling database server through mobile phone communication network, server judge user's legal identity and user's related account amount of money whether effective.
A kind of portable card reader/writer, comprises device housings and the smart card operation module that is positioned at device housings, and described smart card operation module comprises:
Communication unit module, codec unit module, control module module and safety certification unit module, wherein communication unit module is connected with codec unit module, codec unit module is connected with control module module is two-way, control module module is connected and is connected with communication unit module, safety certification unit module and the two-way connection of communication unit module with safety certification unit module is two-way.
Described communication unit module comprises audio frequency terminal and intelligent card interface; Described codec unit module is audio coding decoding unit; Described control module module is micro-control unit; Described safety certification unit module is safe deciphering chip; Audio frequency terminal is connected with audio coding decoding unit and safe deciphering chip respectively, and micro-control unit is connected with intelligent card interface respectively with safe deciphering chip.
Described audio frequency terminal is by voice communication link and mobile communication, and described intelligent card interface is by 7816 communication links and smart card communication.
The beneficial effect that adopts technique scheme to produce is:
1. can realize user and use mobile phone to carry out public utilities to pay, overcome the deficiencies in the prior art, realize smart card read-write and mobile phone power purchase, get online without being tethered to a cable and operate, make user more convenient in mobile phone power purchase, improve comfortable experience property; Be convenient to electric company's sale of electricity management and cut operating costs;
2. portable card reader/writer comprises four module, and simple in structure, convenient operation uses;
3. guaranteeing data security property of unit module through safety certification, guarantees the safety of user account and fund, and level security is strong;
4. codec unit module adopts high-level efficiency code decode algorithm, effectively promotes data processing usefulness, makes operation simpler, use faster, time-saving and efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is power purchase process flow diagram of the present invention.
Fig. 2 is mobile phone operation view of the present invention.
Fig. 3 is the structural representation of the portable card reader/writer of the present invention.
Fig. 4 is the structural representation of an embodiment of the portable card reader/writer of the present invention.
Fig. 5 is that portable card reader/writer is connected schematic appearance with smart card.
Fig. 6 is the inventive method schematic diagram.
1, mobile phone, 2, voice communication link, 4,7816 communication links, 5, smart card, 6, audio frequency terminal, 7, audio coding decoding unit, 8, micro-control unit, 9, safe deciphering chip, 10, intelligent card interface, 11, device housings.
Embodiment
Embodiment 1: referring to Fig. 1～Fig. 6, power purchase method of the present invention, step is as follows:
A, set up mobile phone power purchase platform: build Utilities Electric Co. and Communications service business's the network architecture, user mobile phone is connected with mobile Internet operator by communication network, realize the access of mobile phone terminal;
B, portable card reader/writer is connected with mobile phone and smart card: completing user authentication, and transmit payment load value data to mobile phone power purchase platform, mobile phone power purchase platform is resolved the payment charging request receiving, and process Relational database increasing, change operation, carry out the safe read-write of smart card payment charging information;
Comprise communication unit, codec unit, control module and safety certification unit, wherein,
Communication unit, the network communication function of realization and mobile phone and smart card, completing user authentication, namely send prepaid electricity selling database server through mobile phone communication network, through server judge user's legal identity and user's related account amount of money whether effective, and the inquiry of payment media authentication, cost information and smart card payment are supplemented with money;
Codec unit, the information that communication unit is obtained is carried out encoding and decoding processing, obtains payment charging information;
Control module, processes the payment charging information that codec unit is obtained;
Safety certification unit, for guaranteeing the safety access of communication unit and control module, and provides safety guarantee to identity information, payment charging information that communication unit and control module obtain.
C, surfing Internet with cell phone operation: log in wireless network, download power purchase software or log in online webpage by electric terminal, carry out power purchase by power purchase software or online webpage, by third party's modes of payments or Communications service business, deduct fees, payment charging information is write in smart card, realize power purchase;
D, ammeter payment: user inserts successful power purchase smart card in ammeter, completes supplementing with money ammeter.
Described steps A mobile phone power purchase platform is the server platform that carries out network interaction with the client of mobile phone, comprising: 186 service platforms, company of province access via telephone line gateway, the prepaid electricity selling front server intercoming mutually by networking bus is that interface server, prepaid electricity selling database server, safety access and data security server, mobile paying platform front server are trading server, state's net application encipher machine, state's net application service encryption equipment, communication access via telephone line gateway and communication company's payment paying server.
Embodiment 2: this portable card reader/writer, comprise device housings and the smart card operation module that is positioned at device housings, described smart card operation module comprises audio frequency terminal 6, audio coding decoding unit 7, micro-control unit 8, safe deciphering chip 9 and intelligent card interface 10, wherein, audio frequency terminal 6 is connected with audio coding decoding unit 7 and safe deciphering chip 9 respectively, audio coding decoding unit 7 is connected with micro-control unit 8 is two-way, micro-control unit 8 and safe two-way connection of deciphering chip 9, safe deciphering chip 9 is connected with intelligent card interface 10 respectively with micro-control unit 8, described audio frequency terminal 6 is by voice communication link 2 and mobile phone 1 communication, described intelligent card interface 10 is by 7816 communication links 4 and smart card 5 communications.
Described audio frequency terminal 6 provides power supply and carries out the transmission of sound signal for micro-control unit 8.
Described audio coding decoding unit 7 is changed audio analog signals and digital signal mutually.
Described safe deciphering chip 9 is encrypted the data of transmission, and the data that receive are decrypted.
Portable card reader/writer reads smart card information by intelligent card interface 10, uses safe deciphering chip 9 to be encrypted, and sends to audio coding decoding unit 7; Described intelligent card interface 10 is used for fixing the smart card 5 of insertion, connects described portable card reader/writer and smart card 5.
Described portable card reader/writer, by use safe deciphering chip 9 to be decrypted from the data of sound signal and digital signal transfer unit after, writes in described smart card 5 by described intelligent card interface 10.
Read the information of described smart card 5 by described intelligent card interface 10, use safe deciphering chip 9 to be encrypted, send to described audio coding decoding unit 7.
This portable card reader/writer, by the earpiece holes of mobile phone 1, is realized the safe read-write of data for smart card 5, concrete operation step is as follows:
The first step, inserts the audio frequency terminal 6 of the portable card reader/writer described in patent of the present invention the earpiece holes of mobile phone 1, and mobile phone 1 is by voice communication link 2 and portable card reader/writer communication;
Second step, the smart card 5 that user is used inserts the intelligent card interface 10 of patent of the present invention, and smart card 5 is by 7816 communication links 4 and portable card reader/writer communication;
The 3rd step, mobile phone 1 is powered for smart card operation module 3 and inner each functional device thereof and smart card 5 by audio frequency terminal 6;
The 4th step, log in wireless network, download power purchase software by electric terminal and carry out power purchase, initiated by mobile phone 1, send to audio coding decoding unit 7 that simulating signal is changed into digital signal by audio frequency terminal 6 power purchase instruction, send to micro-control unit 8, then send to safe deciphering chip 9 to carry out safety certification instruction, and deduct fees by the Communications service Shang dynasty;
The 5th step, micro-control unit 8, according to the instruction after authentication, writes smart card 5 by payment charging information by intelligent card interface 10, finally writes result feedback in mobile phone 1, realizes power purchase;
The 6th step, inserts smart card 5 in electric supply meter, can complete power purchase and use.
Claims (7)
1. a mobile phone power purchase method, is characterized in that, described method step is as follows:
A, set up mobile phone power purchase platform: build Utilities Electric Co. and Communications service business's the network architecture, user mobile phone is connected with mobile Internet operator by communication network, realize the access of mobile phone terminal;
B, portable card reader/writer is connected with mobile phone and smart card: completing user authentication, and transmit payment load value data to mobile phone power purchase platform, mobile phone power purchase platform is resolved the payment charging request receiving, and process Relational database increasing, change operation, carry out the safe read-write of smart card payment charging information; This portable card reader/writer comprises communication unit, codec unit, control module and safety certification unit, wherein,
Communication unit, the network communication function of realization and mobile phone and smart card, completing user authentication, payment media authentication, cost information inquiry and smart card payment are supplemented with money;
Codec unit, the information that communication unit is obtained is carried out encoding and decoding processing, obtains payment charging information;
Control module, processes the payment charging information that codec unit is obtained;
Safety certification unit, for guaranteeing the safety access of communication unit and control module, and provides safety guarantee to identity information, payment charging information that communication unit and control module obtain;
C, surfing Internet with cell phone operation: log in wireless network, download power purchase software or log in online webpage by electric terminal, carry out power purchase by power purchase software or online webpage, by third party's modes of payments or Communications service business, deduct fees, payment charging information is write in smart card, realize power purchase;
D, ammeter payment: user inserts successful power purchase smart card in ammeter, completes supplementing with money ammeter.
2. a kind of mobile phone power purchase method according to claim 1, it is characterized in that, described steps A mobile phone power purchase platform is the server platform that carries out network interaction with the client of mobile phone, comprising: be that interface server, prepaid electricity selling database server, mobile paying platform front server are trading server, state's net application encipher machine, state's net application service encryption equipment, communication access via telephone line gateway and communication company's payment paying server by networking bus 186 service platforms, company of province access via telephone line gateway, the prepaid electricity selling front server that intercom mutually.
3. a kind of mobile phone power purchase method according to claim 2, it is characterized in that, described prepaid electricity selling front server is that interface server and mobile paying platform front server are between trading server, to be provided with the safety access and data security server that connect by netting twine.
4. a kind of mobile phone power purchase method according to claim 3, it is characterized in that, described in step B, authenticating user identification is: send prepaid electricity selling database server through mobile phone communication network, server judge user's legal identity and user's related account amount of money whether effective.
5. a portable card reader/writer, is characterized in that, comprises device housings and the smart card operation module that is positioned at device housings, and described smart card operation module comprises:
Communication unit module, codec unit module, control module module and safety certification unit module, wherein communication unit module is connected with codec unit module, codec unit module is connected with control module module is two-way, control module module is connected and is connected with communication unit module, safety certification unit module and the two-way connection of communication unit module with safety certification unit module is two-way.
6. the portable card reader/writer of one according to claim 5, is characterized in that, described communication unit module comprises audio frequency terminal (6) and intelligent card interface (10); Described codec unit module is audio coding decoding unit (7); Described control module module is micro-control unit (8); Described safety certification unit module is safe deciphering chip (9); Audio frequency terminal (6) is connected with audio coding decoding unit (7) and safe deciphering chip (9) respectively, and micro-control unit (8) is connected with intelligent card interface (10) respectively with safe deciphering chip (9).
7. the portable card reader/writer of one according to claim 6, it is characterized in that, described audio frequency terminal (6) is by voice communication link (2) and mobile phone (1) communication, and described intelligent card interface (10) is by 7816 communication links (4) and smart card (5) communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410070817.6A CN103810591A (en) | 2014-02-28 | 2014-02-28 | Power purchasing method for mobile phone and portable IC card reader thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410070817.6A CN103810591A (en) | 2014-02-28 | 2014-02-28 | Power purchasing method for mobile phone and portable IC card reader thereof |
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| CN103810591A true CN103810591A (en) | 2014-05-21 |
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| CN201410070817.6A Pending CN103810591A (en) | 2014-02-28 | 2014-02-28 | Power purchasing method for mobile phone and portable IC card reader thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393993A (en) * | 2014-10-24 | 2015-03-04 | 国家电网公司 | A security chip for electricity selling terminal and the realizing method |
| CN106022177A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Data processing method and intelligent card |
| CN106022770A (en) * | 2016-05-10 | 2016-10-12 | 国网冀北电力有限公司廊坊供电公司 | Consumed electricity charge payment method and system |
| CN106022176A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Card recharging method, terminal, intelligent card, and card recharging system |
| CN106022443A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Intelligent card and state indication method thereof |
| CN106060064A (en) * | 2016-06-24 | 2016-10-26 | 刘虎 | Public service instrument system and management method thereof |
| CN106157454A (en) * | 2015-03-23 | 2016-11-23 | 银联商务有限公司 | A kind of electricity charge paying method and system |
| CN106327189A (en) * | 2016-09-20 | 2017-01-11 | 四川海力智能科技股份有限公司 | IC card topping-up system |
| CN106355765A (en) * | 2016-10-31 | 2017-01-25 | 成都前锋电子仪器有限责任公司 | Self-service payment system and self-service payment method for gas meter |
| CN109636365A (en) * | 2018-11-06 | 2019-04-16 | 杭州海兴泽科信息技术有限公司 | A kind of power information acquisition system and acquisition method |
| CN110287743A (en) * | 2019-05-01 | 2019-09-27 | 上海明我信息技术有限公司 | A kind of intelligent meal card system |
| CN110942313A (en) * | 2019-12-02 | 2020-03-31 | 北京市燃气集团有限责任公司 | Gas card interaction method, gas card payment method and gas card reader |
| CN110992049A (en) * | 2019-12-02 | 2020-04-10 | 北京市燃气集团有限责任公司 | Intelligent card writing method and device |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104393993B (en) * | 2014-10-24 | 2018-05-29 | 国家电网公司 | A kind of safety chip and its implementation for electricity-selling terminal |
| CN104393993A (en) * | 2014-10-24 | 2015-03-04 | 国家电网公司 | A security chip for electricity selling terminal and the realizing method |
| CN106157454A (en) * | 2015-03-23 | 2016-11-23 | 银联商务有限公司 | A kind of electricity charge paying method and system |
| CN106022770A (en) * | 2016-05-10 | 2016-10-12 | 国网冀北电力有限公司廊坊供电公司 | Consumed electricity charge payment method and system |
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| CN106022176A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Card recharging method, terminal, intelligent card, and card recharging system |
| CN106022443A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Intelligent card and state indication method thereof |
| CN106022443B (en) * | 2016-05-11 | 2019-01-29 | 新智数字科技有限公司 | A kind of smart card and its state indication method |
| CN106060064B (en) * | 2016-06-24 | 2019-07-16 | 刘虎 | A kind of public utilities instrument system and its management method |
| CN106060064A (en) * | 2016-06-24 | 2016-10-26 | 刘虎 | Public service instrument system and management method thereof |
| CN106327189A (en) * | 2016-09-20 | 2017-01-11 | 四川海力智能科技股份有限公司 | IC card topping-up system |
| CN106355765A (en) * | 2016-10-31 | 2017-01-25 | 成都前锋电子仪器有限责任公司 | Self-service payment system and self-service payment method for gas meter |
| CN109636365A (en) * | 2018-11-06 | 2019-04-16 | 杭州海兴泽科信息技术有限公司 | A kind of power information acquisition system and acquisition method |
| CN110287743A (en) * | 2019-05-01 | 2019-09-27 | 上海明我信息技术有限公司 | A kind of intelligent meal card system |
| CN110942313A (en) * | 2019-12-02 | 2020-03-31 | 北京市燃气集团有限责任公司 | Gas card interaction method, gas card payment method and gas card reader |
| CN110992049A (en) * | 2019-12-02 | 2020-04-10 | 北京市燃气集团有限责任公司 | Intelligent card writing method and device |
| CN110992049B (en) * | 2019-12-02 | 2021-02-26 | 北京市燃气集团有限责任公司 | Intelligent card writing method and device |
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Application publication date: 20140521 |
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