Tax disk

Abstract

The invention discloses a tax disk which comprises a tax disk hardware system and a tax disk software system, wherein the tax disk hardware system comprises a main control chip, a clock module, a power supply module, a storage, a register and a USB (Universal Serial Bus) interface protector which are connected with the main control chip, wherein the power supply module is also connected with the clock module; the tax disk software system comprises a hardware interface layer, a file system management layer, a safety management layer, a tax application layer and a communication interface layer which are connected with the tax disk hardware system; and a three-level index technology is adopted in the file system management system to index invoices. Compared with the traditional tax control device, one tax disk can complete the services of invoice purchasing, invoice making, invoice cancellation, tax copying and the like without other card readers or storage card devices, and can simultaneously support national tax and regional tax, wherein each tax application supports dozens of invoice types.

Description

technical field [0001] The invention relates to a tax control device. Background technique [0002] In recent years, my country's tax system reform has achieved great success, and the tax revenue has continued to increase substantially, which has promoted the sustained, rapid and healthy development of the national economy. However, there are still problems to be solved in the taxation work: various forms of tax evasion, tax fraud, tax evasion, tax deduction and exemption by default and beyond authority are still relatively serious, there are loopholes in the internal management of the taxation department, and the promotion of tax control devices is the key to implementing tax collection and management. It is an inevitable requirement of the law and an important means to implement scientific and refined management. Article 23 of the Tax Collection Law clearly stipulates that "the state shall actively promote the use of tax control devices according to the needs of tax colle...

AI Technical Summary

Problems solved by technology

However, there are still problems to be solved in the taxation work: various forms of tax evasion, tax fraud, tax evasion, tax deduction and exemption by default and beyond authority are still relatively serious, there are loopholes in the internal management of the taxation department, and the promotion of tax control devices is the key to implementing tax collection and management. It is an inevitable requirement of the law and an important means to implement scientific and refined management

The keyboard, printing, and display of the tax-controlled cash register are all concentrated on one panel, which is inconvenient to use. The tax-controlled cash register can only be used to issue invoices, and its functions are relatively single and its versatility is poor.

[0006] The above-mentioned golden tax card and tax-controlled cash register both use a card reader device and a memory card, which is cumbersome to use

[0007] In addition, there are Watchdata, Tianyu, and Watertek companies on the market that use a dual-chip solution that combines a control chip and a USB interface chip (ST72F651, an 8-bit computer), and the communication time and speed of the dual-chip are too slow. It also brings inconvenience to use

Images