Data Transmission Unit

TD-DTU-PLUS is a data acquisition, remote transmission device which has a built-in high capacity battery and does not need external power supply; this device also takes into account wireless networks in different countries and regions around the globe and can be used to acquire and transmit data remotely, as the wireless communication module is modular, which is built around the Mini-PCIE standardized interface, and allows changing the frequency band to suit the specific network requirements.The wireless communication module is 4G Cat-1 based, and supports 2G + 4G networks as well as GNSS positioning.

A rural utility firm was facing difficulties with the collection and transmission of energy information of scattered water, electric and gas meters in remote villages and farmlands. These meters were placed in places where there was no access to grid power and manual data collection meant that technicians had to spend some time to carry out such data collection which meant that usage could not be monitored immediately and billing was not done accurately.

The wireless transmitters used at the time were dependent on external power and thus not feasible when they were to be off-grid.This is the gap that Tespro TD-DTU-PLUS data acquisition and transmission device has successfully bridged with its inbuilt high capacity battery of 27000mAh, in that it does not need an external power source.

It interfaces well with meters through RS232/RS485 serial ports and collects the energy data at the point of connection and sends it to the utility cloud platform via 4G Cat-1 (or 2G fallback) networks--enabling consistent connectivity even in the country's rural environment.

The GNSS positioning option of the device also provided visibility, which allowed the utility to monitor the location of all meters and confirm the accuracy of the data sources. It supported TCP/UDP/MQTT protocols and therefore fitted well into the existing backend infrastructure of the company, and its size and durability made it suitable to be used outside.

In remote areas where off-grid power is needed, the TD-DTU-PLUS provided continuous transmission of data without use of grid power. It has removed the cumbersome and expensive manual patrols, which have guaranteed the utility access to real-time energy use information, which can be managed effectively and properly billed.