When setting up the system onsite, we imagine making the system flexible and easy interchangeable. This is to assure that eventual malfunctioning equipment can be replaced without the greatest of technological knowhow. The flexibility is also essential when look at the cooling facilities themselves, many of the cooling rooms are converted from all sorts of different uses into the storage for vaccines, this makes up for a flood of different measurements for each room. Thereby making the individual placement of sensors unique for every room.
We have been working with implementing known standard cables for connecting the different elements of our system. We have chosen a standard phone cable (RJ11), which is the most widely applied phone plug in the world. What also makes this particularly cable extremely interesting in our situation, is that it is easily made in custom lengths.
For this system we use a RJ extender to connect the temperature sensors, this is how ever quite the enclosure and will most defiantly react as an isolator. In the next mock-up we will try to make the sensor more exposed to the surroundings without making it vulnerable.
From the image above, the mock-up of the sensor enclosure can be seen. The first couple of tests were promising, however we encountered sporadic technical errors in some of the readings, most properly due to loose connection within the extender. We imagine that cutting the wires and solder the sensor on, will deliver a more stable connection, though it will be more time consuming to assembly.