Development of Real-time Homecare Aid System

近年来，与生活方式相关的疾病，如高血压病、心脏病、糖尿病等的老年人正在增加。如果他们在家中自由舒适地生活，治疗效果有望提高。许多医院都引入了局域网(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传输的图像以多种方式获得的患者信息的医疗和健康支持实践。必须考虑挑战和条件。但互联网的使用带来了许多问题，如拦截、篡改等。在本研究中，我利用数字水印技术和VPN(虚拟专用网)技术开发了一个保障患者医疗信息版权和隐蔽性的系统，该系统由患者系统、医务室系统和中心医院系统组成。患者可以传播…更多的医疗保健信息，如体温、脉搏等，每天通过患者系统发送到医务室。他/她的家庭医生可以参考这些信息，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NTSC摄像机，因此可以从医务室系统控制患者系统的摄像机。因此，即使在家里，病人也可以由他/她的医生检查。病人的医学图像是由一些医学模式产生的，例如CT(计算机断层摄影)和MRI(磁共振成像)。在存储图像时，使用水印技术可以保证图像的版权。VPN技术可以保证图像的隐蔽性，图像从医务室传输到中心医院时可以高度加密，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，也不需要昂贵的费用来介绍和管理，因为只使用个人计算机，所有的应用都是基于Web的系统。较少

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