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REMOTE SUPERVISORY CONTROL SYSTEM, REMOTE SUPERVISORY CONTROL METHOD AND ITS PROGRAM

机译：远程监督控制系统，远程监督控制方法及其程序

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摘要

PPROBLEM TO BE SOLVED: To provide a remote supervisory control system for making it difficult for even an engineer familiar with IP communication to intercept and alter communication information between a master station and a slave station. PSOLUTION: When the master station 23 sends a control command to the slave station, the master station 23 uses a master control countermeasure means 6 to attach a digest message to the control command and transmit the control command, or uses a shared secret key to encrypt the control command to transmit the control command. On the other hand, when the slave station 22a receives the control command from the master station, the slave station 22a employs a slave control checking means 7a to prepare a digest message for the control command in a message in accordance with a countermeasure by the master station by using a hash function, and accepts the control command as a control command only when the digest message is compared with the digest message in the message to be determined to be the same or prepares a control command by using the shared secret key to decrypt the message so as to control a supervisory control object 31a. PCOPYRIGHT: (C)2005,JPO&NCIPI

机译：

要解决的问题：提供一种远程监控系统，即使熟悉IP通信的工程师也难以拦截和更改主站和从站之间的通信信息。

解决方案：当主站23向从站发送控制命令时，主站23使用主控制对策装置6将摘要消息附加到该控制命令并发送该控制命令，或者使用共享密钥加密控制命令以传输控制命令的密钥。另一方面，当从站22a从主站接收到控制命令时，从站22a采用从站控制检查装置7a，根据主站的对策，准备消息中的控制命令的摘要消息。通过使用散列函数将站点分类，并且仅在将摘要消息与要确定为相同的消息中的摘要消息进行比较时，才接受控制命令作为控制命令，或者使用共享密钥准备控制命令以进行解密该消息以便控制监督控制对象31a。

版权：（C）2005，JPO＆NCIPI 展开▼

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公开/公告号JP2005217907A

专利类型
公开/公告日2005-08-11

原文格式PDF
申请/专利权人 TM T & D KK;
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申请/专利号JP20040024003
发明设计人 ASANO TOSHIAKI;HASEGAWA YOSHIRO;EHATA YOSHIO;
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申请日2004-01-30
分类号H04Q9/00;G05B23/02;H02J13/00;H04L9/32;
国家 JP
入库时间 2022-08-21 22:36:43

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