Supercapacitors support asset tracking
Asset tracking units need to be autonomously powered, ideal for energy harvesters or long life high energy batteries, which are low power, but report over a wide area, requiring significant transmission power. Supercapacitors can supply that power.
Supercapacitors deliver peak power to acquire and
transmit position and any other data.
Asset tracking units are small, should fit inconspicuously in the asset they are tracking, need to be autonomously powered and report over a wide area: over a warehouse or campus using a protocol such as LoRa; or over areas with cellular coverage using a low power protocols such as NB IoT or LTE CAT M1 designed for lower data rate transmission; or satellite phone for tracking in remote areas. Energy harvesters are ideal for autonomous power since no battery replacement is required. For road and rail transport a vibration transducer is a natural fit, solar cells may suit other applications such as farm equipment in the field. Otherwise long life high energy batteries such as Lithium Thionyl Chloride batteries are often used. These energy sources cannot supply the high power required for data transmission. LoRa typically requires ~150mW, NB IoT typically requires ~500mW but could be up to 1W, and sateliite communication requires watts. Small energy harvesters can only supply power in the mW range, and LiSOCl2 batteries have high internal impedance, so will suffer premature under voltage lockout when supplying these pulses. The solution is to place a supercapacitor between the energy source and transmit module. Supercapacitors are an ideal power buffer, supplying peak power to the load while being charged at low average power by the energy harvester or battery.
For more details see Application Brief Supercapacitors Support Asset Tracking.