关键词：医疗定位呼叫；STR710控制器；CAN；RS-232
Abstract
In order to improve the human quality of services to the patient, the hospital installs call positioning system between hospital beds and nurses station, when the patients need to call nurses, the nurses can see the message through targeted pager. However, this method can not give nurses more information. With the development of technology, the hospital management is no longer the traditional model in the information times; it is the trend of development to the intelligent, network-based rapid development of a bus network as the way hospitals call positioning system.
The distributed control system is based on STR710 controller (which is based on the 16/32 bit ARM7TDMI RISC CPU). A slave controller in each ward for collecting the calling sign, warning, controlling and displaying features and voice broadcast is set up in this system; The host in the rooms of nurses and doctors for giving alarm, calling information displayed, broadcast, and classifies the signals collected from the slave controller is also set up in the system. Through communicating the host and the salve with the CAN bus, it completes the acquisition signals in the Far East and dealing with the feedback information. The host computer can communicate PC with RS-232 interface.
The system can realize the intelligent management of hospital wards, and it can also realize monitoring, broadcasting, alarming, storing, and demonstrating, and so on, it brings to greater convenience for hospitals and the majority of patients. At the same time, it has good versatility and flexibility .The “medical call system” can be developed in an invincible position in the future.
