Shin'ichi Masuda

Mobile phone-enhanced user interface of remote monitoring system

An information server has been developed to work as the kernel of remote monitoring system. Web, mail, and database facilities are integrated in the server function. The picture information is obtained from the network camera, accumulated in the server, and distributed to its clients according to their requests. In addition to the remote monitoring function, our server can provide a service for household appliance control. As a GUI client, we have utilized some kinds of cellular phones, and CLDC-based Java programming has been employed to realize the function of clients. For the sake of enhancement of our monitoring function, change from an acquisition picture to another can be analyzed through simple image processing. A service of urgent connection between clients and server is also adopted based on the result of image processing. We introduce an outline of our monitoring system and the contents of its various services, and then explain the detail of Java application which operates on our client devices such as mobile phones.

Development and a brief evaluation of a web-based surveillance system for cellular phones and other mobile computing clients

A surveillance system is designed and implemented with network cameras, an integrated Web/mail server, mobile computing devices as GUI, and remote control devices. It can obtain JPEG images from network cameras, process them, and accumulate them into its database. It can also receive requests from clients, analyze them, and perform services of remote monitoring and/or controlling. Image processing function is built in our system and useful for objectpsilas motion detection. Camera homing and emergency contact for cellular phone can be realized with our surveillance system and its image processing facility. Additionally, a remote controlling function is available to switch electric power of appliances on/off. And a brief evaluation of our system is also reported in this paper.

A Mobile Phone-Enhanced Remote Surveillance System with Electric Power Appliance Control and Network Camera Homing

We have developed an remote surveillance system, which is organized with an integrated web/mail server, network cameras, remote control devices and web-based clients. Some kinds of devices can be used as our clients including, for example, high-performance mobile phone, which are equipped with Java virtual machine and web-browsing facility. Our integrated server is designed to play intensive roles of web and e-mail services. It can obtain JPEG images from network cameras, process them, and accumulate them into its database. It can also receive some types of requests from clients, analyze them and perform several kinds of services such as monitoring, controlling and so on. Almost all software of our surveillance system is written in Java programming language, because of easy and powerful description of GUI as well as network programming. With enhanced facilities for mobile phone, our system has been available for many applications.

An Enhanced Application Gateway for some Web services to Personal Mobile Systems

A strategy and some practical examples are proposed to enhance functionally an application gateway located between clients and some kinds of servers and to utilize it for multiple purposes in order to take advantages on some Web services and communication and/or computation between clients and servers. In such an enhanced application gateway, some suitable interfaces can be selected, offered for each request from client, and an effective communication method between client and target server can be also provided according to request from client. And some practical examples are demonstrated, such as remote monitoring system and e-mail handling system. With our proposed style of enhancing application gateway, an integration of Web function and other special-purpose facilities can be effectively realized as one high-performance application gateway. With our enhanced application gateway, therefore, several kinds of clients utilizing mobile devices will be able to enjoy such efficient environment of some Web services for communication, data handling, and/or specific computation

Flexibly configurable multivision remote monitoring system

Novel remote monitoring system for all day outdoor observation using wireless communication is proposed. It consists of three parts: a host station that is PC, remote station (camera and CPU) attached by solar cell and battery for power supply, and wireless sensor with ID signal. The remote station usually performs based on the event driven method by the sensor signal. Since it also can control the camera according to the sensors ID, the multivision monitoring system is flexibly configurable. This paper describes the details of the system and evaluates the maximum number of connectable remote stations. The systems are now really running at many places in Japan, showing the effectiveness in a practical sense.

Development of integrated remote monitoring multivision system

An integrated remote monitoring system for all day outdoor and indoor observation using wireless and/or wired communication is proposed. It consists of three parts: a base station that is PC, remote station (camera and CPU), and wireless sensor with ID signal. The wireless and/or wired remote station can begin to work based on an event driven method by the sensor signal. Since it also can control the built-in camera according to the sensors ID, various configurations of the multivision monitoring system is feasible. This paper describes the details of the integrated system including both wireless and wired remote stations. It also evaluates the maximum possible number of connectable remote stations. We consider that the developed system is considerably effective in a practical sense. In fact, it is running at many places in Japan.

Application of SPRT to an image data sequence for a remote monitoring system

Recently, remote monitoring camera systems have been widely used for security. In such systems, one important function is that the system automatically detects any change in the scenes from the monitoring cameras. In wireless remote monitoring camera systems, the images of the scenes are generally transmitted as compressed data (e.g., JPEG file), because of the capacity of the wireless channel. This article shows the automated detection of the change point in time-series data of compressed JPEG file quantity (Kbytes) from the monitoring camera by applying the sequential probabilistic ratio test (SPRT) and the Chow test, which is well known as a standard method for detecting structural change in time-series data.