1 system structure design

Taking into account the requirements of vital signal collection and its freedom of movement for patients, the system uses a Windows Mobile-based personal digital assistant PDA as the patient client, and monitors the patient's life indicators through the PDA's external medical sensors. The mobile platform-based telemedicine monitoring system is divided into two major modules: the portable module and the clinical module. The system structure is shown in Figure 1.

2 Portable module structure design

The portable module is used to collect the physiological information of the patient, and then sent to the remote medical center after processing, receiving the remote diagnosis result and prompting the user.

The PDA software is divided into three parts: data acquisition subsystem, data management and instruction processing subsystem, data transmission and instruction receiving subsystem.

2.1 Data Acquisition Subsystem

The data acquisition subsystem mainly completes the driving of various medical device sensors, abstracts the sensor in the form of driving, so that the upper application is independent of the sensor hardware, and can flexibly configure and replace various sensors, while the upper application does not need to be modified.

The portable life signal monitoring system uses a medical sensor with a USB interface, and the hierarchical structure of the data acquisition subsystem is shown in FIG. 2 .

2.2 Data Management and Instruction Processing Subsystem

The data management module encapsulates the vital signal data of the data acquisition subsystem according to the rules of the portable monitoring protocol, and sends it to the data transmission and instruction receiving subsystem, and simultaneously stores the data in the mobile database on the PDA; the patient processes the instructions through the instruction The module accesses the mobile database, and can add, delete, modify, etc. the data in the database. At the same time, the data can be displayed in the form of graphs and texts through the interaction module; the interaction module also receives the data transmission and the instruction receiver. The doctor's treatment suggestion information returned by the system is presented to the patient user in the form of sound, image, text, and the like.

The instruction processing module can also receive monitoring modification information returned from the data transmission and instruction processing subsystem, and control the collected data of the sensor, such as modifying the acquisition frequency of the sensor. Although the data acquisition of the sensor cannot be modified at the hardware level and the driver level, the collected data can be filtered according to the time requirement in the data processing module, and the selection and transmission are performed regularly to realize the change of the acquisition frequency.

2.3 Data transmission and instruction receiving subsystem

As shown in Figure 2, the subsystem must ensure that the upper layer application is independent of the underlying specific network connection. The physical network implementation form of the system should not affect the transmission of vital signal data. It is necessary to develop a portable monitoring protocol to implement data transmission at the application layer. Reliability guarantee, which makes the network data transmission module based on Bluetooth, WiFi, GPRS, infrared and so on have certain versatility, and reduces the amount of data transmitted and reduces the demand for network bandwidth.

Ce/Fda Certification Kn95 Face Mask

Kid Non-Woven Fabrics Mask,Protective 4-Layer KN95 Face Mask,,Ce/Fda Certification Kn95 Face Mask

Dongguan Keyutai Mask Co., Ltd. , https://www.maskkytai.com