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Detailed Description
1 Overview
The condition of the hospital bed is related to the safety of the patient’s life. How to realize the stable and rapid understanding of the condition of the hospital bed is a problem that must be solved before people. Through continuous efforts, the wireless call and alarm system for hospital wards developed by the company is a low-cost wireless network practical system designed with wireless single-chip technology.
The system adopts wireless two-way network communication, which can realize the functions of hospital bed droplets, liquid level alarm and patient emergency call at a very low cost; the system consists of a host (PC) and several wireless routers on each floor The composed wireless network system is composed of patients’ wireless extensions; it is a set of multi-functional micro wireless system including two-way paging, micro wireless sensor, alarm monitoring and all functions.
2. Function
Host:
The host (terminal) is placed in the monitoring room or nurse’s duty room, running wireless monitoring software, and automatically and continuously monitoring the patient’s call information in a timely manner through various wireless network routers distributed on the whole floor. Medical staff can monitor the status of each bed in the hospital through the interface of the master computer.
Mini wireless terminal:
Each hospital bed (person) is equipped with a volume of only 85*50*20 mm. It adopts a graphic LCD display, a 4-line X14 Chinese character display system, and a menu display. It is convenient for the patient to intuitively select the content to be called, so that the medical staff can take timely measures. save time. Using low-power microprocessor and low-power wireless design technology, the battery can work for 100-200 days without changing the battery.
Wireless terminal:
Considering that medical staff may need to move around constantly, our system can also be equipped with a portable wireless terminal for the nurse on duty leaving the monitoring room. Its basic function and design are the same as the mini terminal placed on the patient’s bed.
3. System composition
The equipment of the wireless system of the hospital bed mainly includes: a host, a miniature wireless terminal, and a wireless terminal.
4. Working principle
The bed wireless system adopts the two-way wireless communication technology independently developed by the company. The wireless communication is not restricted by the hospital’s space design, and the wireless communication distance can cover the entire patient area.
The basic design of this technology can be mainly used for patients to call the main control room to request emergency medical assistance, daily medical services and other functions. Since the wireless call system designed by our company is completed by software programming, our system can be continuously added or updated according to specific requirements.
The extension and the host can be connected to the wireless network through the wireless channel of 433mhz/915MHZ/2.4ghz, realizing the wireless network connection between the patient/patient bed and the nurse on duty.
5. Main technical indicators
The extension and the host can connect wirelessly with the wireless channel of 433mhz/915MHZ/2.4ghz.
Mini wireless terminal:
High-performance single-chip wireless transceiver chip, built-in high-performance enhanced 51 single-chip (4 clock), with 4 ADC 12bit high-speed sampling, single-chip full-speed operation power consumption 1mA@4M. Working at 1.9～3.6V low voltage, standby power consumption 2uA, all high-frequency components are integrated; maximum transmit power +10dBm, high anti-interference GFSK modulation, rate 100kbps, unique carrier monitoring output, avoid wireless communication collision; address matching output , Easy to point-to-multipoint wireless communication design; ready output, convenient for energy-saving design, to meet low-power design.
6. Main features
1) Reliable two-way wireless communication to ensure that the nurse on duty can automatically and continuously monitor the ward;
2) The design of wireless single-chip microcomputer is adopted, which greatly reduces the cost of system design;
3) The wireless network communication topology is adopted to greatly strengthen the communication distance and communication reliability.
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