Development of Real-time Homecare Aid System

近年来，患有高血压、心脏病、糖尿病等生活方式相关疾病的老年人越来越多。如果他们在家中自由舒适地生活，预计治疗效果会增加。许多医院已经引入了局域网（LAN）系统和互联网，以促进日本的IT基础设施，从而实施远程医疗，以实现基于从远程站点以多种方式传输的图像中获得的患者信息的医疗护理和健康支持实践。必须考虑各种挑战和条件。但是互联网的使用也带来了许多问题，如拦截、伪造等。本研究利用数字水印技术和虚拟专用网技术，开发了一个病人系统、医务室系统和中心医院系统，实现了对病人医疗信息的版权保护和隐蔽性保护。一个病人可以传播 ...更多信息 通过使用患者系统，每天将诸如体温、脉搏等的医疗保健信息传送到医务室。参考这些信息的家庭医生可以通过医务室系统提供建议。因此，在家中为患者提供医疗保健是可能的。患者系统和医务室系统都配备了摄像头，以便可以从医务室系统控制患者系统的摄像头。因此，即使患者在家也可以接受医生的检查。通过CT（Computed Tomography，计算机断层扫描）、MRI（Magnetic Resonance Imaging，磁共振成像）等医疗设备生成患者的医学图像。在图像存储过程中采用水印技术可以保证图像的版权。通过VPN技术可以保证其隐蔽性，从医务室传输到中心医院时，对图像进行高度加密，从而在保护患者医疗信息的版权和隐蔽性的同时，保持患者家庭、医务室和中心医院之间的合作。该系统不需要昂贵的设备，也不需要费用的引进和管理，因为只有个人计算机使用，所有的应用程序是基于Web的系统。少

Recently elderly people with a life-style related disease, such as high-blood pressure disease, cardiac disease, diabetes mellitus and others, are increasing. Therapeutic effect is expected to increase if they live freely and comfortably at home. Many hospitals have introduced the Local Area Network (LAN) system and the Internet to promote IT infrastructure in Japan so that Telemedicine is practiced to realize medical care and health supporting practices based on patient information derived from images transmitted from remote site in many ways. The challenges and conditions must be considered. But use of the Internet causes many problems, such as interception, falsification and others. In this study, I developed a system, which guarantees the copyright and concealment of medical information of patients by using Watermark technique and VPN (Virtual Private Network) technique.Patient System, Infirmary System, and Center-hospital System compose our developed system. A patient can transmit … More healthcare information, such as body temperature, pulse and others every day to Infirmary by using the Patient System. His/Her family doctor, who referred to those information can give advise by the Infirmary System. Therefore, health care to patients at home is possible. Both of the Patient System and the Infirmary System are equipped with NTSC video camera so that the camera of the Patient System can be controlled from the Infirmary System. Therefore, the patient can be examined by his/her doctor even while staying home.Medical images of the patient are generated by some medical modality, such as CT (Computed Tomography), and MRI (Magnetic Resonance Imaging). The copyright of the images can be guaranteed by using Watermark technique when they are stored. The concealment of them can be guaranteed by VPN technology, which can highly encrypt the images when they are transmitted from the infirmary to the center hospital.Therefore, cooperation among the patient's home, the infirmary, and the center hospital can be maintained while preserving the copyright and concealment of the medical information of the patient. The system needs neither expensive equipment nor expenses for introduction and management because only personal computers are utilized and all the application is Web-based system. Less