The Design Of Hospital Nursing And Calling Talk System Of DTMF

The calling system for nursing in hospital, which can promote the hospital's image, strengthen the management of organization, and guarantee to provide good service, is an important part in an advanced hospital. Based on the analysis of domestic and hospital care system on the basis of the status quo, based on the design of the DTMF call Care hospital intercom system, which mainly AT89C52 single chip at the core, using DTMF signal to send, receive, the realization of call, intercom and other major Function.This article focuses on the basic principles of DTMF of, DTMF generator performance and technology, analysis of the current commonly used four different types of nursing call systems, and to put forward to build a hospital-based DTMF call Care System and complete the structure of the system Hardware, software development and design work: system DTMF signals in the cable communications technology, has a transmission speed, accurate and user-friendly features such as; through encoding, decoding and transmission technology, to ensure the long-distance data transmission and anti - Interfere with the ability to avoid the cable transmission of the paging system instability; AT89C52 single chip system to the core, the chips used to send signals, signals acceptance of the chip, chip voice broadcast, LED light-emitting diode, LED digital display, and other peripheral circuits, as well as The corresponding control procedures, achieved through a dial-up telephone calls, show that prompted calls, inquiries, and talk-level care settings and delete functions.The kind machine of this text development has circulated to verify its usefulness through experiment with practical value, and has thrown in the small batch quantity tries the production, having good expansion application foreground.