Recharging device and recharging system

Abstract

The utility model provides a recharging device and a recharging system. The recharging device is used for establishing connection between an intelligent terminal and a contact card. The recharging device is provided with a shell, a safety chip and a communication antenna are arranged in the shell, the communication antenna is arranged at the first end of the shell, and the communication antenna surrounds the first end of the shell to form a communication coil; a card reading chip and a power taking antenna are further arranged in the shell, the card reading chip is electrically connected with the power taking antenna, the power taking antenna is arranged around the card reading chip, and the power taking antenna is arranged in the communication coil; the card reading chip is electrically connected with the security chip; the second end of the shell is provided with a card slot, the card slot is provided with a contact reading head of the contact card, and the contact reading head is electrically connected with the card reading chip. And the recharging device communicates with the intelligent terminal by using the communication coil, so that the recharging time of the user is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless communication, in particular to a recharge device and a recharge system for connecting an intelligent terminal and a contactless card. Background Art

[0002] In early electricity meters and gas meters, power is taken or gas is filled through a contact logic memory card. When the preset electricity meter degree and gas degree set in the card are used up, the user needs to take the logic memory card to the power supply bureau or gas company for recharge before continuing to use. This recharge method consumes the user's time and requires the user to go to a special place, making it inconvenient for the user to recharge.

[0003] There is a current recharge method where the gas card communicates with the mobile phone through the NFC module, the mobile phone communicates with the server, the user inputs the purchased gas amount through the mobile phone, and after the mobile phone and the server confirm the information, the gas purchase card writing instruction is written into the gas card through the NFC module. However, this method requires the user to apply for a new card again, and many users are not willing to apply for a new card, making this recharge method unable to be implemented.

[0004] There is a current contactless IC card reader / writer device based on an audio interface, which includes a device housing and a reader / writer. The reader / writer includes an audio interface, an audio codec unit, a micro control unit, a security chip, and an IC card interface. The audio interface is respectively connected to the headphone jack of the smart phone and the audio codec unit, the audio codec unit is connected to the micro control unit, the audio interface and the micro control unit are respectively connected to the security chip, and the security chip is connected to the IC card interface. This device is connected to the headphone jack of the mobile phone through the audio interface. However, in recent years, mobile phones have gradually removed the headphone jack, so users cannot use the current mobile phone to recharge and pay for the gas card with this device, making it inconvenient for users to use. Summary of the Utility Model

[0005] The first object of the utility model is to provide a recharge device that is convenient for users to use.

[0006] The second object of the utility model is to provide a recharge system applying the above recharge device.

[0007] To achieve the first object of the present utility model, the recharge device provided by the present utility model is used to establish a connection between a smart terminal and a contact card; the recharge device is provided with a housing, and a security chip and a communication antenna are arranged inside the housing. The communication antenna is arranged at the first end of the housing, and the communication antenna forms a communication coil around the first end of the housing; a card reading chip and a power taking antenna are also arranged inside the housing. The card reading chip is electrically connected to the power taking antenna, the power taking antenna is arranged around the card reading chip, and the power taking antenna is arranged inside the communication coil; the card reading chip is electrically connected to the security chip; a card slot is arranged at the second end of the housing, and a contact head of the contact card is arranged in the card slot, and the contact head is electrically connected to the card reading chip.

[0008] As can be seen from the above solution, by providing a communication antenna and a power taking antenna in the recharge device, the security chip obtains power from the mobile phone through the communication antenna and communicates with the mobile phone, takes power through the NFC antenna of the mobile phone, and communicates with the mobile phone after taking power. At the same time, the security chip communicates with the mobile phone through the communication antenna. In addition, the power taking antenna takes power from the NFC antenna of the mobile phone at the same time to supply power for the card reading chip and the contact card to work. The card reading chip obtains information of the contact card and writes relevant information to the contact card through the contact head in the card slot. The present utility model recharges the contact card through the recharge device, enabling the user to freely recharge without replacing the card and directly use the mobile phone for recharging, which is convenient for the user to recharge. Secondly, the recharge device communicates with the mobile phone through the NFC antenna and the communication antenna. Most existing mobile phones are provided with an NFC module, and the user can use the existing mobile phone to communicate with the contact card, saving the user's recharge time.

[0009] In a further solution, a control chip is also arranged inside the housing. The control chip is electrically connected to the security chip, and the control chip is electrically connected to the card reading chip.

[0010] Thus, the control chip can connect the security chip and the card reading chip, process the data sent by the security chip and then send it to the card reading chip, process the data sent by the card reading chip and send it to the security chip. By connecting the security chip and the card reading chip through the control chip, the data of the security chip and the card reading chip can be processed and converted, avoiding the error of the security chip receiving data due to incorrect data format.

[0011] In a further solution, the control chip is arranged on the first side of the power taking antenna, and the control chip is arranged inside the communication coil.

[0012] Thus, the control chip is arranged on the first side of the power taking antenna, which is convenient for the control chip to be connected to the card reading chip.

[0013] In a further solution, the control chip and the security chip are set as a co-packaged chip.

[0014] Thus, setting the control chip and the security chip as a co-packaged chip can reduce the chip volume, thereby reducing the volume of the recharge device.

[0015] In a further solution, the intelligent terminal is provided with an NFC antenna, the NFC antenna overlaps with the communication antenna, and the NFC antenna overlaps with the power-taking antenna.

[0016] Thus, the intelligent terminal and the recharge device communicate and take power through the NFC antenna.

[0017] In a further solution, the intelligent terminal communicates with the recharge device through the NFC antenna, and the recharge device communicates with the contactless card through the contact reader.

[0018] Thus, the recharge device transmits a signal to the recharge device through the NFC antenna, the communication coil of the recharge device obtains the signal, and the recharge device uses the contact reader to communicate with the contactless card, thereby realizing the recharge operation on the contactless card.

[0019] To achieve the second object of the present invention, the recharge system provided by the present invention includes a recharge server, an intelligent terminal and a contactless card, and is characterized in that it further includes the above-mentioned recharge device, the recharge server is connected to the intelligent terminal through a wireless module, the intelligent terminal is connected to the recharge device through an NFC antenna and a communication antenna, and the contactless card is connected to the recharge device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an embodiment of the recharge device of the present invention.

[0021] Figure 2 is an internal structure diagram of the first embodiment of the recharge device of the present invention.

[0022] Figure 3 is an internal structure diagram of the second embodiment of the recharge device of the present invention.

[0023] Figure 4 is a system structure block diagram of an embodiment of the recharge system of the present invention.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The recharge device of the present invention is used to establish a connection between the intelligent terminal and the contactless card. Among them, the recharge device and the intelligent terminal establish a connection through the NFC antenna of the intelligent terminal, and the recharge device establishes a connection with the contactless card, so that the contactless card can be recharged through a modern mobile phone.

[0026] See Figure 1 and Figure 2, the recharge device of this embodiment includes a housing 11, and an induction area 120 is arranged outside the housing 11. When in use, the NFC induction area of the smart terminal can be overlapped with the induction area of the recharge device, and the smart terminal can communicate with the recharge device. The smart terminal in this embodiment is the mobile phone of an existing user. A security chip 111 and a communication antenna 116 are arranged inside the housing 11. The communication antenna 116 is arranged at the first end of the housing 11, and the communication antenna 116 forms a communication coil around the first end of the housing 11.

[0027] The communication antenna 116 is used to communicate with the smart terminal. When the communication antenna 116 overlaps with the NFC antenna of the smart terminal, the signal of the smart terminal can be received.

[0028] A card reading chip 113 and a power-taking antenna 114 are also arranged inside the housing 11. The card reading chip 113 is electrically connected to the power-taking antenna 114. The power-taking antenna 114 is arranged around the card reading chip 113, and the power-taking antenna 114 is arranged inside the communication coil. When the power-taking antenna 114 overlaps with the NFC antenna of the smart terminal, the signal of the smart terminal can be obtained, so as to provide energy for the card reading chip 113. The positions of the power-taking antenna 114 and the communication antenna 116 correspond to the induction area 120, which is convenient for users to use.

[0029] The card reading chip 113 is electrically connected to the security chip 111; a card slot 115 is arranged at the second end of the housing 11. The card slot 115 is provided with a contact read head for a contact card (not shown in the figure), and the contact read head is electrically connected to the card reading chip. The information of the contact card is read by the card reading chip 113 and then transmitted to the security chip 111.

[0030] A control chip 112 is also arranged inside the housing 11. The control chip 112 is electrically connected to the security chip 111, and the control chip 112 is electrically connected to the card reading chip 113. The card reading chip 113 is connected through the control chip 112. By connecting the security chip 111 and the card reading chip 113 through the control chip 112, the data of the security chip 111 and the control chip 112 can be processed and converted, avoiding the error of the security chip 111 receiving data due to incorrect data format.

[0031] The control chip 112 is arranged on the first side of the power-taking antenna 114, and the control chip 112 is arranged inside the communication coil.

[0032] The smart terminal is provided with an NFC antenna. The NFC antenna overlaps with the communication antenna 116, and the NFC antenna overlaps with the power-taking antenna. The smart terminal communicates with the recharge device through the NFC antenna, and the recharge device communicates with the contact card through the contact read head.

[0033] See Figure 3, the control chip 112 and the security chip 111 are set as a co-packaged chip 117, that is, the control chip 112 and the security chip 111 are set as one chip. The co-packaged chip 117 can reduce the chip volume, thereby reducing the volume of the charging device.

[0034] See Figure 4 , the charging system in this embodiment includes a charging server 31, a smart terminal 32, a contact card 33, and a charging device 1. Among them, the charging server 31 is connected to the smart terminal 32 through a wireless module, the smart terminal 32 is connected to the charging device 1 through an NFC antenna and a communication antenna, and the contact card 33 is connected to the charging device 1. The wireless module can be a WIFI module. The contact card 33 can be inserted into the card slot 115 in the charging device 1 and communicate with the contact reader of the charging device 1, and the charging device 1 can obtain the information of the contact card 33.

[0035] When the user uses the charging device 1 to charge, insert the contact card 33 into the card slot 115 in the charging device 1, and the sensing area of the charging device 1 is close to the NFC antenna area of the smart terminal 32 to obtain energy to power on the charging device 1. At the same time, the security chip 111 of the charging device 1 stores an NTAG tag. When the smart terminal 32 reads the NTAG tag, the charging website is automatically opened for charging.

[0036] After the smart terminal 32 establishes a connection with the charging device 1, the smart terminal 32 and the charging device 1 perform mutual authentication. Among them, the charging server 31 stores the device public key of the charging device 1, and the charging device 1 stores the device private key. Among them, the smart terminal 32 obtains the security identifier and the first random number of the security chip 111 of the charging device 1, and sends the security identifier and the first random number to the charging server 31. The charging server 31 encrypts the first random number using the device public key of the charging device 1 to generate a first ciphertext and sends it to the smart terminal 32. The smart terminal 32 sends the first ciphertext to the charging device 1. The charging device decrypts the first ciphertext using the device private key to obtain a second random number, compares it with the first random number, and sends the comparison result to the smart terminal 32. The smart terminal 32 sends a third random number to the charging device 1. The charging device 1 encrypts it using the device private key to obtain a second ciphertext and sends the second ciphertext to the charging server 31. After the charging server decrypts the second ciphertext using the device public key, it obtains a fourth random number and sends it to the smart terminal 32. The smart terminal 32 compares whether the third random number is the same as the fourth random number. When the two comparison results are the same, the smart terminal 32 can perform a charging operation with the charging device 1.

[0037] When the recharge system completes two-way authentication, a process key is established to complete the recharge operation for this time, ensuring security during recharge. The intelligent terminal 32 obtains the security identifier and the third ciphertext of the recharge device 1, and sends the security identifier and the third ciphertext to the recharge server 31. The third ciphertext is encrypted by the recharge terminal using the device private key. The recharge server 31 decrypts the third ciphertext using the device public key to obtain the third plaintext, and sends the third plaintext and the fourth ciphertext to the intelligent terminal 32. The intelligent terminal 32 sends the third plaintext and the fourth ciphertext to the recharge device 1. After verifying whether the third plaintext is correct, the recharge device 1 decrypts the fourth ciphertext using the device private key to obtain the fourth plaintext, and sends the fourth plaintext to the intelligent terminal 32. The intelligent terminal 32 sends the fourth ciphertext to the recharge server 31. The recharge server 31 verifies whether the fourth plaintext is correct. If so, it generates a session key, encrypts the session key using the device public key, and sends it to the intelligent terminal 32. The intelligent terminal 32 sends the encrypted session key to the recharge device 1, and the recharge device 1 decrypts the encrypted session key using the device private key to obtain the session key. The recharge device 1 and the recharge server 31 transmit information through the session key.

[0038] The user enters recharge information at the website of the intelligent terminal 32. After the recharge information is sent to the recharge server 31, the recharge server 31 verifies the account and generates a recharge instruction to send to the intelligent terminal 32. The intelligent terminal 32 sends the recharge instruction to the recharge terminal 1. After the security chip of the recharge terminal 1 receives the recharge instruction, it transmits it to the control chip 112. The control chip 12 converts the recharge instruction into an API interface command for operating the contactless memory card through the internal lower computer program, and sends the API interface command to the card reading chip. The card reading chip sends the API interface command to the contactless card.

[0039] In this embodiment, the contactless card is recharged through the recharge device 1, enabling the user to freely recharge without changing the card and directly recharge using a mobile phone, which is convenient for the user to recharge. Secondly, the recharge device communicates with the mobile phone through the NFC antenna and the communication antenna. Most existing mobile phones are equipped with an NFC module, and the user can use the current mobile phone to communicate with the contactless card, saving the user's recharge time.

[0040] The above is only a preferred embodiment of the present utility model, but the design concept of the utility model is not limited thereto. Without departing from the concept of the present utility model, more other equivalent embodiments may be included. Those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the protection scope of the present utility model.

Claims

1. Recharging device, used to establish the connection between the smart terminal and the contact card; Features: The recharging device is provided with a shell, a security chip and a communication antenna are provided inside the shell, the communication antenna is provided at the first end of the shell, and the communication antenna surrounds the first end of the shell to form a communication coil; A card reader chip and a power antenna are also provided inside the shell, the card reader chip is electrically connected to the power antenna, the power antenna is arranged around the card reader chip, and the power antenna is arranged inside the communication coil; The card reader chip is electrically connected to the security chip; A card slot is disposed at the second end of the housing, and a contact reader of the contact card is disposed in the card slot, and the contact reader is electrically connected to the card reader chip.

2. The recharging device according to claim 1, characterized in that: A control chip is also arranged inside the shell, and the control chip is electrically connected to the security chip, and the control chip is electrically connected to the card reader chip.

3. The recharging device according to claim 2, characterized in that: The control chip is arranged on the first side of the power taking antenna, and the control chip is arranged inside the communication coil.

4. The recharging device according to claim 3, characterized in that: The control chip and the safety chip are configured as a sealed chip.

5. The recharging device according to any one of claims 1 to 4, characterized in that: The smart terminal is provided with an NFC antenna, the NFC antenna overlaps with the communication antenna, and the NFC antenna overlaps with the power collection antenna.

6. The recharging device according to claim 5, characterized in that: The smart terminal communicates with the recharging device via the NFC antenna, and the recharging device communicates with the contact card via a contact reader.

7. A recharge system, comprising a recharge server, an intelligent terminal and a contact card, characterized in that: It also includes the recharging device according to any one of claims 1 to 6, the recharging server is connected to the smart terminal via a wireless module, the smart terminal is connected to the recharging device via an NFC antenna and a communication antenna, and the contact card is connected to the recharging device.

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