With the advent of the industry 4.0 era, the Internet of Things connects the various things in the objective world in the form of the Internet, and builds an ecological system for real-time information exchange and communication between people, machines and things. In the development plan, information technology such as the Internet of Things will be applied to improve the level of informationization in the industry. At the International Consumer Electronics Show (CES) held in the United States in January 2015, major technology giants rushed to showcase their latest achievements, indicating that the Internet of Things has come from concept and into our lives. Technology has also begun to infiltrate into the medical field. Combined with health monitoring and medical care equipment, the patient's vital signs data can be immediately recorded and fed back to the medical unit, thus ensuring the patient's diagnosis and treatment. However, any innovation is threatened by security. Medical data can help patients find the best treatment plan, and may also leak personal privacy. If medical data is stolen by hackers and maliciously tampered, it will be equivalent to someone invading your health sensor system. Become tricky. With this in mind, Intel Security and the Atlantic Council recently released a report entitled The Healthcare Internet of Things: Rewards and Risks, which explores connected medical devices. Security challenges and opportunities. According to the report, if the networked medical devices linked to the Internet of Things (IoT) have strong security from the beginning, such devices will have extremely broad application prospects. These devices mainly include wearable, temporary intake and even embedded. The human body is used for medical treatment, medication and general health care equipment. The report also presents recommendations for industry, regulatory agencies, and healthcare professionals to help them deliver the most valuable services to patients while minimizing the security challenges posed by software, firmware, and communication technologies involved in networks and devices. . Networked medical devices can enhance human health and improve medical outcomes, thereby improving people's quality of life. The report mentions that these technologies are expected to save $63 billion in healthcare costs over 15 years and reduce hospital equipment costs by 15%-30%. However, the report also pointed out that although connected health care has great advantages, the problems associated with it can not be ignored: personal information theft, malicious tampering with equipment, damage, widespread interference and accidents. Pat Calhoun, senior vice president and general manager of network security at Intel Security, points out: "Connected healthcare makes the Internet of Things more personal. When connected medical devices are connected to individuals, exchangeable health information can help significantly improve healthcare services, but Security and cybersecurity intrusions are also an indisputable fact. Security should be rooted in the entire healthcare ecosystem—from devices and networks to data centers. This report presents some useful recommendations to promote innovation while reducing security risks, including: Security functions should be embedded in the device and network from the beginning, not during subsequent use. Industry and government agencies should consider implementing comprehensive security standards or best practices for networked medical devices to address potential risks. Private-to-private and public-to-private collaboration must continue to improve. The regulatory approval model for medical devices needs to evolve to better motivate innovation while enabling healthcare organizations to meet regulatory policy objectives and effectively protect the public interest. Rumors must be provided to the public to ensure that patients and their families are able to express their opinions and aspirations in order to achieve a balance of efficiency, usability and safety when using the device. Freeze-dried Half Of Vegetables Freeze-dried Vegetables into powder will not affect its nutrition. Normally heat-sensitive substances are lost at high temperatures. For example: traditional high temperature drying technology. Freeze-drying technology and sun drying, drying, spray drying and so on are drying technologies, different drying methods have different effects on the quality of products. Freeze-drying method has less damage to the product. 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