The multi-sharing mobile remote monitoring system - the four layer object management model and practical system

A remote monitoring of various device distributed over wide area is strongly demanded to cut down their maintenance cost. With the introduction of wireless packet systems, the mobile remote monitoring system has started to propagate, because of a less limit to establish remote monitoring devices and its characteristic of always connectivity. Many small to medium sized corporations have been hesitating, although they understand this necessity, because of high investment costs involved in the maintenance of monitoring systems. One solution to this problem is the ASP (Application Service Provider). We developed the multi sharing mobile remote monitoring system MMRM. This paper will present the four layers object management model and the three layers application protocol stuck model that are basic design schemes of MMRM. The system structure and the function block diagram of the practical system TRM (Tokai-Remote Monitoring System) in which Toshiba Machine´s TC-mini is used as a data logger will be introduced. In addition, system characteristics such as the delay period from trouble detection to sending alarm message will also be described.