On the basis of Internet of Things (IoT) technologies, Community Medical Internet of Things (CMIoT) is a new medical information system and generates massive multiple types of medical data which contain all kinds of user identity data, various types of medical data, and other sensitive information. To effectively protect users' privacy, we propose a secure privacy data protection scheme including transmission protection and access control. For the uplink transmission data protection, bidirectional identity authentication and fragmented multipath data transmission are used, and for the downlink data protection, fine grained access control and dynamic authorization are used. Through theoretical analysis and experiment evaluation, it is proved that the community medical data can be effectively protected in the transmission and access process without high performance loss.

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Abstract-With the growing complexity of the structure and function of the digital home appliance controllers, the higher requirements on the design of integrated circuits are expected. In view of the lower efficiency of the traditional large scale integrated circuit design, such as long design cycle, high investment and bad flexibility, therefore, the traditional design method is unable to meet the rapid product development. A design and its implementation scheme based on System-onProgrammable-Chip (SoPC) technologies with the Intellectual Property (IP) core parametric technology and elastic design method are proposed for the Micro-controller Unit (MCU) YL8MCU applied in digital home appliances. It makes used of Reduced Instruction Set Computer (RISC) framework and 5-stage pipeline technology for designing the instruction system and hardware structure so as to improve the speed of processing data and instructions. Finally the correctness and feasibility of its function is verified with the integrated verification, the IP function module verification based on coverage and the simulation test of the controlling flow for the washer. The results show that YL8MCU meets the requirements of digital home appliances and supports system integration on chip.

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In digital system design, Intellectual Property (IP) reuse technology reduces the complexity of System on a Chip (SoC) design, and improves its design efficiency. However it also brings some testing or verification difficulties. Aiming at the low efficiency of testing mechanism, the difficulty of real-time signal monitoring and non-reusability of modulelevel debugging platform for IP design, we propose an elastic solution to dynamic batch in-circuit emulating on Field Programmable Gate Array (FPGA) so as to optimize the testing process. Through the simulation debugging kit working in the computer side, the downloading pathway of stimulus signals and configuration data is created; through the simulation monitoring kit working in the FPGA side, the uploading pathway of simulation data and feedback signals is created; and with Universal Asynchronous Receiver/Transmitter (UART), the stimulus signals, configuration data, simulation data and feedback signals are transmitted between the computer side and the FPGA side. After testing of multiple IP instances, the results show that the method has strong universality and can improve the efficiency of IP verification.