A multiple communication standards compatible IoT system for medical usage

With the development of IoT technologies, more and more medial equipments and sensors with wireless communication modules are deployed in the same domain. Confliction of wireless signal in air becomes a serious problem which should be carefully managed. In this paper, we design a communication system model for medical equipments and IoT sensors. The system defines different communication priority for various devices depending on the necessity of functions. Some medical IoT sensors translate and receive the massive data every time and on the other hand some equipment just translate emergency signal for help calling. All these communication process should be treated separately to keep the efficiency of ISM band utility. The system has three patterns: (1) Devices with various communication standard can sense the existing of other devices.(2) Device can change its working state depending on the priority of itself and others. (3) The system will only change the MAC and upper layer of Device network stack and without touching the PRY layer.