Payment method, device and system based on hardware wallet

The invention discloses a payment method, device and system based on a hardware wallet, and relates to the technical field of computers. According to one specific embodiment, the method comprises the steps that hardware wallet information sent by a hardware wallet reader is received, first biological characteristic data of a user is obtained according to the hardware wallet information, and the hardware wallet reader and a hardware wallet conduct data interaction through the short-distance mobile communication technology; receiving second biological characteristic data, sent by the biological characteristic acquisition equipment, of the user; performing feature matching on the first biological feature data and the second biological feature data to obtain similarity; and when the similarity reaches a similarity threshold value, verification is passed, and payment processing is carried out. According to the embodiment, manual confirmation is not needed, the operation is convenient, and payment ...

Embedded developing board having strong expansibility

The invention provides an embedded developing board having strong expansibility, which comprises four components: a system power supply, a processor minimum system, a board-loading base resource and an expansion function module, wherein the system power supply comprises a USB (universal serial bus) power supply interface, an external power source power supply interface, a self-recovering fuse, a voltage stabilizer, a power self-locking switch, a power light; the processor minimum system comprises a 51 single chip, an AVR (automatic voltage regulation) single chip and an ARM (advanced RISC machine) processor; the board-loading base resource comprises a light-emitting diode, a serial shift register, a 4-bit 8-section common cathode nixie tube, a passive buzzer, a matrix keyboard, an independent interruption key, a serial port circuit, a temperature sensor, a keyboard mouse interface, an infrared receiving circuit, an EEPROM (electrically erasable programmable read-only memory) memory, a real-time ...

Embedded developing board having strong expansibility

Method, device and equipment for determining user issuing rights and interests and storage medium

The invention discloses a method, a device, equipment and a storage medium for determining user granted rights and interests, which are applied to the technical field of computers, and the method comprises the following steps: obtaining a user identifier of a target user, a merchant identifier of a target merchant and information of target rights and interests, and then determining the user granted rights and interests according to a first corresponding relation among the user identifier, the merchant identifier, the rights and interests information and a use probability; and determining a first use probability that the target user uses the target rights and interests of the target commercial tenant, and determining the target rights and interests of the target commercial tenant corresponding to the first use probability greater than a target threshold value to issue rights and interests for the target user. According to the preset first corresponding relation, the use probability can be ...