The Design Of Nursing Call System Used In Hospital

Hospital information construction is an important means to adapt to the social needs of the application of information technology.Hospital information system is a general term,its essence is to integrate the system of various departments of the hospital,so that it can be interconnected and woven together to cover the whole hospital information network.Through the sharing of information between the system,the hospital can avoid the information island,facilitate other departments to share information,which improve the management level of the hospital and work efficiency.It not only optimizes the process also reduces human error operation,but also effectively improve the hospital service quality and patient satisfaction.This paper mainly introduces a hospital ward calling system design scheme,this scheme uses the lower cost of twisted pair wiring construction,serial connection mode in networking and industrial bus RS485 communication protocol for communication.The solution uses digital communication technology to realize the call,voice intercom and information transmission function.To implementation voice intercom function,digitized the voice data and encode the speech data,then sent it to the bus for transmission.Using principle of transmission channel of time division and multiplexing,combined with custom network management strategy to achieve call intercom and information transmission function.This paper introduces the development history of the call system,the design scheme of the functional requirements,system design,detailed design of hardware,design of communication protocol,network management strategy and the content of the embedded software design,this paper expounds the detailed design ideas and specific measures in order to realize the call system,finally summarizes the conclusions of this design and practical application value.