A.The success of the Software Defined Radios (SDRs) and other high technology applications spurred the erstwhile Mission for Geospatial Applications to use this technology for wider societal applications. This led to development of the concept of using high speed mesh nodes for this purpose. Based on our discussions with the Govt. of Nagaland and the problems faced by people in getting basic diagnosis of the medical conditions, it was decided to try out these nodes for telemedicine in Nagaland.

The teams from MGA, now part of NECTAR, did a survey between district hospital Kohima and a Primary health Centre (PHC) at Zubra. The basic problem was to fine tune this network to account for the high absorption of (Radio Frequency) RF emissions in Nagaland, given the forest cover. For this, towers and specialized aerials were designed so that the communication speed could be between 150 to 180 Mbps. These nodes between the district hospital and PHC were operationalized in August, 2012. During the trial phase of this technology, Doctors from the hospital were able to guide surgery in the connected PHC.

The success of this two way communication between the district Hospital and the PHC led to the decision that this may be expanded to cover larger number of PHCs in Kohima districts. The challenge to extend this immediately was that during this period cement/concrete does not set quickly because of the heavy rainfall. Therefore, conplast was used to hasten the process of establishment of towers etc. With the support of the Nagaland GIS and Remote Sensing Centre of the Govt. of Nagaland, our Officers established a mesh network connecting 18 PHCs with the district hospital. On both sides high definition cameras were installed in order to provide the best quality picture for diagnosis between the PHC and the district hospital. Some of the recordings marking this development can be seen by clicking on the link given below.

In order to take care of the erratic power supply, invertors as well as solar panels were installed to ensure functionality of the system. This was possible because the technology developed was based on low power consumption and high speed communication system. The important learning from this demonstrator project was:

(a) The hilly and densely forested terrain in the North East does not suit establishment of a telemedicine system based on Optic Fibre Cables. The difficulty in laying these cables and the environment clearance will delay such projects.

(b) Power remains a major constraint especially in the rural areas. Low Power equipment is best suited for such applications.

(c) There is a need to provide solar power equipment linked to societal projects at reasonable cost.








For watching this video, click on the link given below:



B. A Mesh Network for video/CCTV based real time surveillance system is currently being implemented in Shillong for the Meghalaya Police. Meshnet for developmental use has also been set up in Tura District in Meghalaya.






C.A Mesh Network for video/CCTV based real time surveillance system is currently being implemented in Guwahati for the Assam Police.