Invoicing monitoring device, invoicing system and invoicing method applied to tax control

Abstract

The invention discloses an invoicing monitoring device, an invoicing system and an invoicing method applied to tax control. The invoicing system comprises the invoicing monitoring device, host terminal equipment and mobile storage equipment, wherein the invoicing monitoring device comprises a master control security chip, a wireless communication module and a real-time clock and also comprises a chargeable battery and a button battery, the chargeable battery supplies power to the chip and the wireless communication module, and the button battery supplies power to a clock; the master control security chip comprises a security information storage unit, a user information storage unit and an invoicing monitoring unit, wherein the security information storage unit is used for calculating the encryption algorithm and the encryption key of a tax control code, the user information storage unit is used for storing the relevant invoice information of a taxpayer, and the invoicing monitoring unit is used for judging whether invoice detail data is legal or not; and the mobile storage equipment is used for storing the invoice detail data and the tax control code sent from the host terminal equipment. The invoicing monitoring device can be manufactured into portable equipment with small volume. Through the invoicing system and the method, invoicing and tax return flexibility and convenience can be effectively improved so as to better meet the use requirements of users.

Description

technical field [0001] The invention relates to the technical field of tax control, in particular to an invoice monitoring device, an invoice system and an invoice method applied to tax control. Background technique [0002] At present, users need to issue a machine-printed invoice, usually using a PC connected to a tax control machine or a tax control disk, and the mainstream mode of connecting the tax control machine or tax control disk to the PC is the USB communication interface, and the issued A large number of data such as invoice details and tax control codes need to be stored in the tax control machine or tax control disk. This traditional billing device has the limitations of large volume, high power consumption, single communication and inconvenient portability. With the development and popularization of various communication technologies, users hope that the equipment involved in the billing system is small in size, low in power consumption, easy to carry, and ch...

AI Technical Summary

Problems solved by technology

This traditional billing device has the limitations of large volume, high power consumption, single communication and inconvenient portability

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