Wireless sensor networks research in medical assistant application

摘要

In view of the existing situation that patients' physiological information is not timely and securely acquired and medical workers is easy infected in some particular large scale medical assistance application, a feasible solution based on wireless sensor networks is proposed. In the solution, a secure network topology based on hexagonal mesh is constructed according to node locations for acquiring patients' information and an secure and energy-efficient routing algorithm is designed according to characters of hops for transmission of patients' information. Data security is realized by one-way hash key chain and symmetric key authentication. Analysis shows that the solution has better performance on saving energy, traffic load and security.