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Tax control equipment embedded software design method

A technology of embedded software and design method, which is applied in software design, program control device, etc., can solve the problem that billing equipment without USB interface cannot be connected to U-port tax control equipment, etc., achieve low hardware performance requirements, solve differences, and reduce burden effect

Inactive Publication Date: 2016-12-07
INSPUR QILU SOFTWARE IND
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AI Technical Summary

Problems solved by technology

It mainly solves the problem that the invoicing device without a USB interface cannot be connected to the U-port tax control device on the interface or the problem that the software needs to be customized according to the hardware platform of the invoicing device

Method used

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  • Tax control equipment embedded software design method

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Experimental program
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Embodiment Construction

[0017] The content of the present invention is described in more detail below:

[0018] 1. Configure the SCSI protocol module in the embedded Linux kernel, recompile and generate the kernel and download it to the embedded device storage.

[0019] 2. Write the serial port monitoring service program according to the communication protocol, jump to different functions for processing according to the command word, and import the serial port monitoring service program into the thread pool for processing;

[0020] 3. Realize socket basic communication, encapsulate the method required by http server on the basis of socket communication, process POST, GET requests sent by the client, etc.; analyze the business ID according to the business message sent, and jump to different The functional function is processed, and the web service program is imported into the thread pool for processing.

[0021] 4. Use a cross compiler to recompile the openssl library and pkcs#11 library into the emb...

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Abstract

The invention provides a tax control equipment embedded software design method, and belongs to the technical field of tax control equipment. The method provided by the invention is characterized in that an SCSI protocol and a BOT transmission specification are used for realizing the drive-free design of the tax control equipment; openssl and PKCS#11 are used for operating a tax digital certificate in the tax control equipment; the two-way ssl communication with a server side is realized; a multithreading technology is used; a serial port protocol message or a network protocol message sent by billing equipment can be monitored at the same time; the message is converted into a protocol message required by U-port tax control equipment. The embedded software design method has the advantages that the hardware equipment performance requirements and the operation system version requirements of the billing equipment of billing software accessed into a value added tax invoice system are effectively reduced; meanwhile, the storage of the tax control equipment is not limited to the space limitation; a technical measure is provided for the management of the tax control equipment.

Description

technical field [0001] The invention relates to tax control equipment technology, in particular to a design method for embedded software of tax control equipment. Background technique [0002] There is a problem that some of the existing billing devices do not have a USB interface, which makes it impossible to directly connect to the U-port tax control device on the physical interface; the hardware platforms of some billing devices are very different, and the direct connection to the U-port tax control device needs to be done according to the hardware platform. Customized development of embedded software, software version maintenance and later updates will lead to a large investment in human resources; as tax control equipment is a national security product, there are greater security risks in opening the interface. Therefore, a technical means is needed to solve this problem and meet the needs of different billing devices connected to tax control devices to access the value...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44
CPCG06F8/20
Inventor 赵兰兴刘来波刘桂新
Owner INSPUR QILU SOFTWARE IND
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