PiCUS TMSO Manual
9
3.4.2 Central Unit (TMSO.CU)
This is the central radio station and data collection unit of the PTMSO.
The primary functions are:
Establish radio communication with all TMSO.IM registered in the system via TMSO
Radio
Control of the sensors according to the measurement configuration
Collection and filtering of all measurement data from the sensors
Connect to the Internet (via WLAN or LTE) and transfer the measured data to the
Dropbox
Provision of the configuration and control interface to the user's mobile phone via BLE
Secondary functions:
Create a local data backup in case no connection to the Internet or the Dropbox can
be established
Execution of firmware updates (of the TMSO.CU itself or the TMSO.IM)
The TMSO.CU has the same sensor technology as the TMSO.IM, so it can also be
used as a control sensor if required (however, due to the mounting, larger wind-
exposed area and the external cable to the solar cell, the noise of the measured values
can be greater than with the TMSO.IM).
For power supply the TMSO.CU has a very large internal battery which can be charged via the
USB interface.
In addition, the solar cell supplied can be connected to the central unit. Under good conditions,
this provides enough energy to recharge the battery even during use.
The housing is stable and waterproof.
In order to keep it as inconspicuous as possible despite its size and to prevent external
influences, all display and operating elements are hidden behind a cover, which can only be
opened with a tool (enclosed TMS.Magnetic pens).
Figure 1 - TMSO.CU with the housing cover open, view of the front panel
