CN210324408U - NFC card for IC card gas meter and gas payment system - Google Patents

Abstract

The utility model discloses a NFC card for IC-card gas table, include: the antenna coil is used for finishing data communication operation; a CPU card; the CPU card is used for realizing data processing and simulating an IO clock of the logic encryption card chip; a gold finger interface; the golden finger interface is used for operating with the upper meter of the gas meter after gas purchase. Compared with a bluetooth card, the NFC card does not need a battery, a shell, a packaging box, complex components, a chip and the like, so that the product cost is greatly reduced. It is expected to completely replace the bluetooth card in the near future.

Description

NFC card for IC card gas meter and gas payment system

Technical Field

The utility model relates to a smart card meter technical field, especially a NFC card, payment system for IC-card gas table.

Background

The conventional common IC card has a simple structure, and only a logic encryption card chip is integrated in the card and connected to a golden finger interface, as shown in FIG. 1. The logic encryption card chip can be an SLE4442 card chip, an AT88SC1608 card chip, an AT88SC102 card chip, an AT88SC153 card chip and the like.

As shown in fig. 2, a bluetooth card, which is currently in common use, integrates a CPU chip, a bluetooth chip, a button battery, a voltage regulator circuit, a logic encryption chip, a switch switching circuit, a key, an indication circuit, and the like. Although online recharging can be realized, the structure is complex, the circuit stability cannot be guaranteed, and the most important is that the product cost is high.

The conventional common IC card requires that a user needs to go to a specified gas business hall for purchase every time the user fills gas, which brings inconvenience to the user.

The conventional Bluetooth card has high cost and long production and detection period for manufacturers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a NFC card, gas system of collecting fee for IC-card gas table to it is loaded down with trivial details to solve ordinary IC-card and collect fee the process, needs the user to go to the business office and purchase, though the intelligent bluetooth card can realize supplementing with money on line, but the higher technical problem of cost.

In order to achieve the above object, in a first aspect, the present invention provides an NFC card for an IC card gas meter, including:

the antenna coil is used for finishing data communication operation;

a CPU card; the CPU card is used for realizing data processing and simulating an IO clock of the logic encryption card chip;

a gold finger interface; the golden finger interface is used for operating with the upper meter of the gas meter after gas purchase.

Further, the communication operation comprises power taking, data sending and data receiving.

Further, the CPU card is specifically configured to:

receiving the recharging of the NFC card by the mobile terminal through the NFC channel;

and returning recharging result information and basic information of the gas meter to the mobile terminal so that the mobile terminal sends the returned information to the background system through the network.

Further, the above table operation comprises: and (4) charging on the NFC card, and charging the gas purchasing amount into the IC card gas meter.

Further, the golden finger structure is also used for writing the information related to the gas quantity into the NFC card by the IC card gas meter.

Further, the gas quantity related information comprises a total accumulated quantity and a table internal allowance.

In a second aspect, an embodiment of the present invention provides a gas payment system, including the above-mentioned NFC card, IC card gas meter, mobile terminal with NFC function, background system and third party payment platform;

the IC card gas meter is connected with the NFC card through a golden finger, and the NFC card is connected with the mobile terminal through an NFC channel; the mobile terminal is connected with the background system through a mobile network; and the mobile terminal is connected with the third-party payment platform through a mobile network.

Further, the system also comprises an encryption machine, and the background system is connected with the encryption machine through a communication cable.

Compared with the prior art, the utility model discloses a following beneficial effect has: the NFC card can realize online gas purchase through the mobile phone, and the trouble that a user needs to go to a business hall every time to purchase gas is avoided. The user uses the NFC card, so that the labor cost of a business hall can be reduced to a certain extent; compared with a bluetooth card with an online gas purchasing function, the NFC card has certain cost advantage, and particularly, compared with the bluetooth card, the NFC card does not need a battery, a shell, a packaging box, complex components, a chip and the like, so that the product cost is greatly reduced. It is expected to completely replace the bluetooth card in the near future.

Drawings

FIG. 1 is a schematic circuit diagram of an IC card in the prior art;

FIG. 2 is a schematic circuit logic diagram of a prior art Bluetooth card;

fig. 3 is a schematic structural diagram of NFC for an IC card gas meter according to an embodiment of the present invention;

fig. 4 is a schematic view of a gas payment system provided in an embodiment of the present invention;

fig. 5 is an encryption flowchart of the gas charging system provided by the present invention.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the invention and to implement the invention, and are not intended to limit the scope of the invention in any way.

Referring to fig. 3-5, an embodiment of the present invention provides an NFC card for an IC card gas meter, which mainly includes an antenna coil, a CPU card, and a gold finger interface. The antenna coil provides power for the whole NFC card. The golden finger interface is connected with the IO port of the CPU card, the IO port of the CPU card can simulate the time sequence of mainstream logic encryption card chips such as the SLE4442 card and the like, and the golden finger connected with the main stream logic encryption card chip can be understood as a standard logic encryption card chip.

The functions of the specific components are as follows:

(1) an antenna coil: the NFC card has two main functions, namely a power taking function and a power supply for the NFC card. The second is a communication function, which provides a channel for data transmission;

(2) a CPU card: and a core device for data processing. Taking an analog SLE4442 card chip as an example, a group of storage spaces of a space analog 4442 card can be opened in the chip, and the mobile phone APP can complete reading and writing operations and the like through APDU instructions; the IO port can simulate the SLE4442 card chip time sequence and is used for connecting an external golden finger interface, and an external card reader or a meter can directly read and write the simulated 4442 card storage space content through the golden finger interface; a part of space is reserved in the test data storage device for storing test data, key files, version information files and the like. It should be understood that the present invention relates to logic encryption chips that can be simulated by CPU card, including all the mainstream logic encryption card chips on the market, such as SLE4442 chip, AT88SC1608 chip, AT88SC102 chip, and AT88SC153 card chip.

(3) A golden finger interface: the interface is used for the upper table operation and is connected with an IO port of the CPU card.

The embodiment of the utility model provides a gas payment system, including above-mentioned NFC card, IC-card gas table, have NFC function's mobile terminal, backstage system and third party payment platform;

the IC card gas meter and the NFC card are connected through a golden finger, and the NFC card is connected with the mobile terminal through an NFC channel; the mobile terminal is connected with the background system through a mobile network; and the mobile terminal is connected with the third-party payment platform through a mobile network. The NFC card can be connected with a background system through a card reader, namely recharging and gas purchasing can be carried out on site like a common IC card. The system further comprises an encryption machine, and the background system and the encryption machine are connected through a communication cable, for example, a twisted pair cable. The mobile terminal can be mobile communication equipment such as cell-phone, flat board, wearable equipment, and it has the NFC function, can install the APP of collecting fee. In the following embodiments, a mobile phone with APP software installed is taken as an example.

The gas purchasing process of the system is as follows:

(1) the mobile phone with the NFC function sends the gas purchasing amount information to a background system through pre-installed APP software;

(2) the business system calculates the gas purchasing amount and returns the gas purchasing amount to the mobile phone APP;

(3) the mobile phone APP carries out payment operation through a third party payment platform;

(4) the third-party payment platform sends payment result information to the background system, and the background system feeds the information back to the mobile phone APP;

(5) the mobile phone APP recharges the NFC card through the NFC channel;

(6) the NFC card returns recharging result information and basic information of the gas meter, and the mobile phone APP sends the returned information to the background system through the network;

(7) charging on the NFC card;

(8) the IC card gas meter writes the related information such as the total accumulated quantity, the allowance in the meter and the like into the NFC card;

(9) and (10) the NFC card supports the operation of holding the card by a user to travel to a business hall for gas purchase, the operation is the same as the operation of a common IC card, and the operation flow is slight.

The data encryption work flow in the process of paying and purchasing gas is as follows:

(1) the method comprises the steps that mobile phone application APP software with an NFC function retrieves random numbers from an NFC card through an NFC channel;

(2) the NFC card returns a random number to the mobile phone APP;

(3) the mobile phone APP sends relevant data including random numbers, gas purchasing amount information and the like to a background system;

(4) the background system sends the data to be encrypted to the encryption machine;

(5) the encryption machine returns the encrypted data to the background system;

(6) the background system sends the encrypted data to the mobile phone APP through the mobile phone network;

(7) the mobile phone APP sends the encrypted data to the NFC card;

(8) the NFC card decrypts through the built-in secret key and returns correct or wrong information to the mobile phone APP.

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims (4)

1. An NFC card for an IC card gas meter, comprising:

the antenna coil is used for finishing data communication operation;

a CPU card; the CPU card is used for realizing data processing and simulating an IO clock of the logic encryption card chip;

a gold finger interface; the golden finger interface is used for operating with the upper meter of the gas meter after gas purchase.

2. The NFC card for an IC card gas meter according to claim 1, wherein the communication operation includes power taking, data transmission, and data reception.

3. A gas payment system is characterized by comprising an NFC card, an IC card gas meter, a mobile terminal with an NFC function, a background system and a third party payment platform;

the IC card gas meter is connected with the NFC card through a golden finger, and the NFC card is connected with the mobile terminal through an NFC channel; the mobile terminal is connected with the background system through a mobile network; and the mobile terminal is connected with the third-party payment platform through a mobile network.

4. The gas payment system of claim 3, further comprising an encryption engine, wherein the backend system and the encryption engine are connected by a communication cable.

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