VPN application development platform and monitoring method thereof

An application development and platform technology, applied in hardware monitoring, generation of response errors, error detection of redundant data in calculations, etc., can solve problems such as illegal acquisition and low security of communication data, and achieve the goal of ensuring security Effect

Inactive Publication Date: 2020-08-18
TAIZHOU YUNYONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the communication data of the existing distribution network automation equipment has the problem of low security, and it is very easy to be obtained illegally

Method used

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  • VPN application development platform and monitoring method thereof
  • VPN application development platform and monitoring method thereof
  • VPN application development platform and monitoring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a VPN application development platform includes FPGA, USB module, JTAG interface, Flash, RTC clock module, SD interface, cryptographic algorithm chip, Gigabit Ethernet communication circuit, DDR and eMMC.

[0027] Said FPGA is the 7Z015 chip of Xilinx Company, and has built-in Linux system and application program.

[0028] The Gigabit Ethernet communication circuit includes an Ethernet control chip and a network port, the FPGA is connected to the network port through the Ethernet control chip, the network port is an RJ45 network port, and the model is HanRun HR872230H, and the The RJ45 network port has its own network transformer, the Ethernet control chip is Intel I350, and the Gigabit Ethernet communication circuit is used to connect external devices for data communication.

[0029] The cryptographic algorithm chip is connected to the FPGA for realizing SM1 symmetric algorithm, SM2 asymmetric algorithm and SM3 hash algorithm. The cryptograp...

Embodiment 2

[0037] Since the application of the system usually requires unattended and long-term non-stop work, this requires that the system can be automatically restored in the event of a crash or crash. Therefore, if Figure 4 As shown, on the basis of embodiment one, a monitoring module for monitoring the operating conditions of the platform is added, and the monitoring module includes a single-chip microcomputer system and a watchdog circuit; the FPGA is connected to the single-chip microcomputer system, and the single-chip microcomputer The system is connected with the watchdog circuit, and the watchdog circuit is connected with the FPGA. The monitoring and reset of the FPGA system can be realized through an independent single-chip microcomputer system and a watchdog circuit.

Embodiment 3

[0039] The present invention also provides a method for monitoring the application program of the VPN application development platform, specifically: Figure 5 As shown, the application program in the FPGA regularly sends the timer reset instruction of the watchdog circuit to the single-chip microcomputer system; at this time, the running lamp flickers once, and when the single-chip microcomputer system does not receive the instruction on time, Then immediately send a system reset command to the watchdog circuit, and the watchdog circuit immediately resets the entire system after receiving the command, and the running light flashes quickly before the reset.

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Abstract

The invention provides a VPN application development platform. The VPN application development platform comprises an FPGA, a USB module, a JTAG interface, a Flash, an RTC clock module, an SD interface, a cryptographic algorithm chip, a gigabit Ethernet communication circuit, a DDR and an eMMC. The gigabit Ethernet communication circuit is connected with the FPGA and is connected with external equipment for data communication; the cryptographic algorithm chip is connected with the FPGA and is used for realizing an SM1 symmetric algorithm, an SM2 asymmetric algorithm and an SM3 hash algorithm;the Flash is connected with the FPGA and is used as a configuration circuit of the FPGA; the USB module is connected with the FPGA; the JTAG interface is connected with the FPGA; the JTAG interface isconnected with the Flash; a PC sends a programmed data file to the USB module, and after the USB module receives the data file, erases and programs the Flash a through the JTAG interface, so that remote online upgrading of the FPGA program is realized. The SM1 symmetric algorithm, the SM2 asymmetric algorithm and the SM3 hash algorithm are realized through the FPGA, so that the data security is ensured.

Description

technical field [0001] The invention relates to the technical field of distribution network equipment, in particular to a VPN application development platform and a monitoring method thereof. Background technique [0002] Distribution network automation is an important means to improve power supply reliability and quality, expand power supply capacity, and realize efficient and economical operation of distribution network. It is also one of the important foundations for realizing smart grid. The power distribution network is widely distributed, with a large number, and it is distributed in a decentralized manner. In view of the particularity of the distribution network, the mixture of various communication methods is the only way for the development and promotion of distribution automation. Optical fiber communication is the most ideal distribution automation communication method; secondly, distribution line carrier communication and wireless public network communication ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L29/06H04L29/08G06F11/14G06F11/30G06F13/40
CPCG06F11/1441G06F11/3031G06F13/4063G06F2213/0042H04L12/4641H04L63/045H04L67/025H04L67/06
Inventor 肖相生高渊李占才刘杨赵丰
Owner TAIZHOU YUNYONG ELECTRONICS
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