Products & Services

Occasionally we might find ourselves in areas where neither GNSS nor cellular network (GSM/3G/4G) signals can reach. It might be a basement, storage room or other areas where radio signals cannot reach. It also not rare for considerably risky work to the performed in such environments.

In these cases, many employers’ worst fear is that there will occur an accident where employees are harmed. And without neither cellular network nor GNSS coverage there might not be any means to call for help.

With this in mind, SRT has developed a series of products designed for positioning and communication in indoor environments. The products are based on established radio communication technologies and the series currently include SRT306i, SRT326i, SRT330i2, SRT334i and SRT334i2.

The backbone of SRT’s system for indoor positioning and communication is SRT334i and SRT334i2.

SRT334i is only used for positioning as it provides position data to alarm devices within its vicinity.

SRT334i2 can be used for both positioning and communication. By strategically placing a series of SRT334i2 so that they form a chain, they together create a single network where each SRT334i2 is in direct or indirect contact with each other. When there is an emergency situation, the alarm message is transmitted through the network, until it reaches its destination. The alarm message can be conveyed to the GSM network but also to other alarm devices within the local network.

In cases where GSM coverage is not available, the indoor environment can be equipped with the alarm receivers SRT330i/SRT330i2 which act both as alarm receiver and GSM gateway. When an alarm is received via radio communication it is forwarded to the GSM network while the usual alarm procedure is activated as well.