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Encryption and decryption device for telecontrol 104 protocol network messages

A network message, encryption and decryption technology, applied in the field of telecontrol 104 protocol network message encryption and decryption device field, can solve the problem of not providing safe and reliable transmission of telecontrol 104 protocol and anti-hacking attack, and achieve low power consumption and reliable operation , low-cost effect

Inactive Publication Date: 2013-10-30
DALIAN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a vertical encryption authentication device has been configured in the power dispatching data network, this device processes all the information on the network, and does not provide safe and reliable transmission and anti-hacking means for the telecontrol 104 protocol

Method used

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  • Encryption and decryption device for telecontrol 104 protocol network messages
  • Encryption and decryption device for telecontrol 104 protocol network messages

Examples

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Embodiment Construction

[0011] Attached below figure 1 , 2 The present invention is described further:

[0012] like figure 1 , 2 As shown: IC1 is a single-chip microcomputer; IC2 and IC3 are Ethernet control chips, and JP1 and JP2 are RJ45 sockets.

[0013] The microcontroller IC1 has a total of 32 pins, among which INT0 (9th pin), INT1 (11th pin), Gnd (16th pin), P0.2 (23rd pin), SS (25th pin) are used in this embodiment ), P0.3 (Pin 26), MOSI (Pin 27), MISO (Pin 28), SCLK (Pin 29), VCC (Pin 32), a total of 10 pins, and other pins are left floating. The INT0 port is connected to the INT (pin 4) of the Ethernet control chip IC2, and is used to respond to the data arrival interrupt request of IC2. The INT1 port is connected with the INT (pin 4) of the Ethernet control chip IC3, and is used to respond to the data arrival interrupt request of IC3. The SS port of IC1 is connected to VCC after connecting resistor R1, so that IC1 works in SPI master mode. The P0.3 port is connected to the CS (pin 9...

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Abstract

The invention relates to an encryption and decryption device for telecontrol 104 protocol network messages. The device is composed of a single-chip microcomputer, Ethernet control chips and an RJ45 circuit. The device is characterized in that the two Ethernet control chips are respectively connected with the single-chip microcomputer through an interrupt output port and an SPI port and connected with the RJ45 circuit through a TP port. The encryption and decryption device for the telecontrol 104 protocol network messages only conducts encryption and decryption processing on the 104 protocol network messages by the utilization of the Ethernet control chips and the single-chip microcomputer, and makes no effect on transmission of other protocol messages. The encryption and decryption device for the telecontrol 104 protocol network messages is simple in simple, low in cost, reliable in working and low in power dissipation.

Description

technical field [0001] The invention relates to a network encryption device, in particular to a telecontrol 104 protocol network message encryption and decryption device. Background technique [0002] At present, in the power grid dispatching automation system, most of the automation devices at the substation end use the telecontrol 104 protocol to connect to the master station through the power dispatching data network, EPON optical fiber, power wireless private network, GPRS and other TCP / IP networks, and the master station issues the power through the 104 protocol The control command performs a split operation of the equipment, and these networks belong to the shared information transmission platform, and also undertake the transmission of phase angle measurement data, protection fixed value data, etc., and these networks are also connected to other systems in addition to the dispatch automation system , such as power system, protection information subsystem, etc. Althou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 石文江
Owner DALIAN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER
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