Abstract : Combined with the development of current information technology and wireless transmission technology, the information technology is applied to personal medical equipment through WIFI technology, and the Internet and social medical resources are integrated to establish a new community-oriented medical information system for patients. .
Foreword
In recent years, the wide application of information technology in various fields has brought great convenience to people's life and production, especially in the medical field, the work intensity of medical workers has been reduced, the medical level has been improved, and the burden on patients has been reduced. With pain. More importantly, it brings a series of medical models and promotes the development of medical undertakings. For example, the development of increasingly mature hospital information systems, remote medical systems, etc. are constantly updating people's impression of medical care.
At the same time, the highly developed electrical technology has made more and more patients have small-scale diagnosis and treatment equipment corresponding to their own conditions, such as elderly monitors, blood pressure meters, and blood glucose meters. However, at present, personal diagnosis and treatment always remain in an independent and closed state, and information technology has not been fully utilized, so almost all patients face these problems:
(1) In case of some physical abnormalities, even in emergency situations, timely professional guidance and assistance cannot be obtained;
(2) It is difficult to make long-term accurate records of the data fed back by the treatment equipment;
(3) It is impossible to scientifically analyze the data recorded by itself, and it is difficult to spy on changes in the condition.
In view of the above problems, combined with the development of today's information technology and wireless transmission technology, information technology can be applied to personal medical equipment through WIFI technology, and the Internet and social medical resources can be integrated to establish a new community for patients and surrounding patients. Medical information system.
1. WIFI technology
The full name of WIFI is Wireless Fidelity, also known as 802.11b standard, which is an industry standard for wireless network communication defined by IEEE. The technology uses a frequency band around 2.4GHz, which is currently an unlicensed wireless frequency band. Its main features are: fast speed and high reliability. In open areas, the communication distance can reach 305m. In closed areas, the communication distance is 76 ~ 22m. It is convenient to integrate with the existing wired Ethernet network, and the cost of networking low.
2. System description
1. Realization of wireless transmission
Because the WIFI of this system is used in a mobile monitoring system, it can be called embedded WIFI. The structure of the embedded WIFI is different from the implementation on a standard PC / OS platform. To implement WIFI communication on an ordinary microprocessor / microcontroller, the hardware structure and software level must be reduced. Here we have adopted a perfect WIFI module, and the protocol has been tailored to meet the requirements of the embedded software layer. Because the system adopts embedded WIFI technology and supports digital grouping, it can detect the measured objects in groups and perform real-time data transmission at the same time; it ensures the reliability and accuracy of monitoring and has a good effect in actual use.
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