1 the importance of informatization
With the rapid development of information technology and the deepening of medical and health system reform, the in-depth development of modern, digital and intelligent hospitals is imperative, and the degree of informatization is more important on the road of hospital development. Hospital network planning, computer room comprehensive management, hospital information management system (HIS), electronic medical record (EMR), image archiving and communication system (PACS), laboratory information system (LIS), telemedicine and OA office are all showing us the charm of digitalization and the intangible value brought by informatization.
2 Information Engineering Infrastructure
2. 1 network planning, design and implementation
The old form of integrated wiring: overhead multimode optical fiber is used between buildings and connected to the central computer room through optical fiber transceiver; Five types of twisted-pair cables are used between floors, which are connected by 100 Mbps non-network management layer 2 switches or hub; Planning, design and comprehensive wiring: Based on the guiding ideology of "safety, practicality, economy and rationality", a systematic, detailed and comprehensive investigation, analysis and research were carried out on the network of the whole hospital. Finally, single-mode optical fiber wiring is selected and implemented, and six types of twisted pairs are used on the floor. The core computer room is arranged on the sixth floor of the outpatient building of the hospital center, and the optical fibers converge to the core switch of the computer room through the optical fiber module of the optical fiber switch. And all optical fibers are buried underground, and pipeline wells are reserved for future maintenance (see figure 1, 2, 3).
2.2 Computer Room Planning, Investment and Implementation
2.2. 1 computer room foundation implementation According to the safety requirements of the computer room, the grounding and lightning protection of the computer room were unified, and the ground was waterproof and moistureproof. Access control and monitoring are installed, and fire and smoke alarm devices are equipped. Equipped with sander 3C20KS uninterrupted power supply. Considering the cost, configure 1 ordinary precision air conditioning unit to adjust the temperature and humidity of the machine room. In view of the importance of electricity, we choose 2 mains power supply.
2.2.2 server implementation After comprehensive consideration, IBM models 3850 and 3650 are selected, among which HIS server runs through the whole process of patients' medical treatment, and its importance is self-evident, which requires very high security and stability. Finally, two IBM3850 were selected for hot standby. PACS database server and social security front-end machine also use 1 IBM3850 respectively. Other domain control servers, LIS servers, PACS application servers, EMR servers, OA servers, antivirus software servers, etc. All use IBM3650. Among them, the database server uses the Red Flag operating system. Other servers use windows2008R2 operating system.
2.2.3 storage mode selection: SAN technology With the continuous increase of hospital network data and frequent data exchange, hospitals also realize that the original DAS (Direct Attached Storage) mode can not meet the increasing data storage performance requirements. On the whole, the popular data storage network is SAN(StorageAreaNetwork), and the whole storage is connected to the enterprise LAN where the server is located as a separate network. Among them, the optical fiber switch model is IBMSAN24B, and the storage model is IBMDS5020, all of which realize the hot standby function. The performance and safety are greatly improved.
2.2.4 Storage and optical switch configuration storage LUN partition and optical switch partition. The specific division of storage space should be carried out according to the requirements of hospital information system. The synchronous replication function is configured between the two storages, the optical fiber switch and the storage controller are cross-connected, and the partition makes the server and the storage correspond.
2.2.5 The core switch is equipped with two H3C7506E-V core switches, which are stacked by 10Gigabit modules of IRF technology to form a virtual device for use. Each access switch is interconnected with two core switches through two uplink lines, and the two uplink lines are aggregated into a port group through the link aggregation function, and the core end is also aggregated into a port group through the link aggregation function, so that when one line fails, the normal operation of the whole network can be guaranteed.
3. Use after infrastructure construction
After the completion of infrastructure construction, the requirements of the humanistic office environment such as hospital modernization, informationization, safety, high efficiency and energy saving have been basically realized. Network security and reliability: The hospital network has implemented a physical isolation scheme between the internal and external networks, combined with the protection of firewall and network antivirus software, which provides a strong guarantee for data security. The redundant management of important equipment is realized, and the network and data security coefficient are greatly improved. Advanced and practical network: single-mode optical fiber has the characteristics of long transmission distance, high transmission bandwidth, low bit error rate and high stability. Connecting optical fiber modules through switches makes network transmission more efficient, safe and convenient.
Manageability and scalability of the network: two H3C7506E-V switches are used in the core switch, and H3C5 120 switches are used in the access layer, which realizes the remote maintenance of the switches, improves the manageability and security of the network, and provides a foundation for network expansion. Among them, 8-core single-mode optical fiber uses 4 cores in the internal network (one pair of transmitting and receiving and one pair of redundancy), 2 cores in the external network, and the remaining 2 cores can be used for emergency and redundancy. Efficient and convenient network: In the past, it took a few minutes for the network client to query or write the patient's medical data, but now it only takes a few seconds, greatly shortening the time for medical treatment. Effective classification and analysis of medical data in a short period of time can provide timely early warning service for leaders' scientific decision-making, make the statistical system more efficient and convenient, and its intangible value provides an important scientific basis for hospital management.
4. Insufficient information construction
The performance and stability of ordinary precision air conditioning used in computer room are relatively poor. The failure of air conditioning hardware will lead to the temperature rise of the computer room, server shutdown and network paralysis, and the seriousness of the problem can be imagined. It is recommended to use two air conditioners and two machines to work at the same time to improve the safe operation of the computer room. If the intrusion detection system is not installed, such as handheld hospital, appointment registration, remote consultation and direct call of PACS images on the intranet, it is recommended to buy it. There are more than 15 databases and application servers in the computer room, which is complicated to operate and difficult to manage. Only important servers are redundant, and the overall security cannot be guaranteed. It is recommended to use server virtualization technology. The construction of talent team is insufficient and the technical level of personnel is uneven. It is suggested to strengthen the study and assessment of personnel's technical level.
5 conclusion
Although Qingdao Infectious Diseases Hospital has made some achievements in information construction, there is still a big gap compared with the requirements of deepening medical system reform and the information construction of other general hospitals. In the next step, we will continue to conduct in-depth investigation and study, strengthen hardware investment, improve the functions of software systems, and strive to promote hospital informatization construction and promote the rapid and healthy development of hospitals.
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