Sharing and cooperation in geo-information technology

Aziz, T. Lukman

Bibliographic data

Monograph

Persistent identifier:: 856479470

Author:: Aziz, T. Lukman

Title:: Sharing and cooperation in geo-information technology

Sub title:: ISPRS Commission VI Symposium, April 15 - 17, 1999, Bandung, Indonesia

Scope:: 1 Online-Ressource (130 Seiten)

Year of publication:: 1999

Place of publication:: London

Publisher of the original:: RICS Books

Identifier (digital):: 856479470

Illustration:: Illustrationen, Diagramme

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: SPECIAL SESSION: EARTH MONITORING

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: A DISTRIBUTED REMOTE MONITORING SYSTEM TO SUPPORT EARLY FIRE DETECTION. R. Sureswaran & M. Mohanavelu

Document type:: Monograph

Structure type:: Chapter

121 attached to the Internet or a monitoring network via a cellular line or a VSAT. Clients from anywhere in the world, provided they have access to the Internet or that particular monitoring network could establish connection with the server and the server would then transmit real time images directly to them. RMS also provides the capability for multiple clients to access the server at the same therefore the monitored are could be watched from several different places. Figure 1: General overview of the system IMPLEMENTATION The system would mainly consist of 3 modules which are:- a) Server module b) Transmission and Communication module c) Client and interface module d) Compression and decompression modules The task under the server module would be dealing with the interaction of the camera and the computer, prepares a communication channel to establish connection with the clients, send images to the clients and monitor the connection status. At the server’s site, the images would be compressed while at the clients’ sites, the image would be decompressed. Compression plays a vital role because without a proper and effiecient method of compression we cannot ensure of the delivery of a continuous image in real time because of the amount of data required to be transmitted. Currently, the compression method used is VDO Wavelet Video Codec (VDOM). The detail design of the above system would be clients establishing connection using TCP/IP connections. This is to ensure reliable data for security reasons i.e. login and password validation. In return the server program would get the clients IP address and broadcast the packets (compressed images) using UDP to ensure fast and continuous transmission of images. At the other end the client program would be ready to receive the packets, decompresses them and displays the images. This entire process would be done in real-time. The server allocates individual connection to each clients as shown in the Figure 2 below. This is to monitor their connection and to ensure that a proper communication channel always exist between the server and client in case of termination of either parties. At the server’s side, pictures of the captured images could be previewed. At the client’s site a proper interface would be necessary to enable the user to establish connection to the server either by selecting the server or keying the server’s IP address or names. The user is also allowed to disconnect from a particular server to establish a connection with another server by the assumption that multiple servers are running concurrently at multiple locations. If the server could be executed for 24 hours without any interruption, the clients would be able to access it anytime for the purpose of monitoring that particular area.

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