Inside and outside network isolator and application method thereof in hospital

Abstract

The invention discloses an inside and outside network isolator and an application method thereof in a hospital. The inside and outside network isolator comprises a USB Slave interface circuit connected with an inside network PC, a USB Slave interface circuit connected with an outside network, a TTL level data conversion circuit, a data processing part, power filter circuits and a JTAG interface circuit, wherein the USB Slave interface circuit connected with the inside network PC and the USB Slave interface circuit connected with the outside network are connected with the data processing part through the TTL level data conversion circuit; and the power filter circuits are connected between the USB Slave interface circuit connected with the inside network PC and the USB Slave interface circuit connected with the outside network and the TTL level data conversion circuit respectively. The inside and outside network isolator can realize data interaction between the internal data of the hospital and the outside network, and effectively improves and promotes the hospitalizing experience of a patient.

Description

technical field [0001] The invention relates to physical isolation and safe exchange and hospital information sharing, in particular to an internal and external network isolator and its application method in a hospital. Background technique [0002] HIS (Hospital Information System) is the most basic management information system in modern hospitals. At present, considering the requirements of security and confidentiality, almost all HIS systems in our country run in the internal network of hospitals, and are connected with the Internet and other public information. The network is not connected. Hospital information can only be used within the hospital, and patients cannot legally obtain relevant information through public information platforms such as the Internet and SMS. For example, in order to obtain test results, sometimes patients have to go back and forth multiple times to get them, and laboratory test sheets are sometimes lost. occur. In other words, information t...

AI Technical Summary

Problems solved by technology

At present, the most widely used and most common network security measures at home and abroad are firewall software, but the firewall software itself has two major defects: one is that the network isolated by the firewall is based on the TCP / IP protocol for information exchange, and the TCP / IP There are loopholes in the protocol, and the firewall cannot prevent the loopholes in the protocol itself; the second is that the operation of the firewall is inseparable from the operating system, and both the operating system and the firewall software have unknown loopholes, so network intrusion and attacks using these loopholes cannot be prohibited. , which makes the whole defense system very fragile

In addition, firewall software cannot guarantee the security of data, and at the same time, there are limitations in intrusion detection, and the phenomenon of missed and false positives is very serious.

Statistics show that the rate of firewall breaches is on the rise in recent years, and nearly half of firewalls have been breached. Therefore, due to its own limitations, firewall technology cannot fully meet the security requirements and cannot meet the security needs of hospital networks.

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