In field operations, particularly in remote areas like Abu Hamad and Berber in Sudan, the biggest challenge we face is the accuracy of manual logs. Paper records can endure any data entry, but in a sensitive sector like the medical cold chain, a single error can cost a human life. This is where my vision at Addoma Trading Services began: Why don’t we let the machine document its own performance?
Why do we need the Generator as a "Witness"?
Blockchain technology is excellent at securing data against tampering, but it remains a "container"—it only holds what we put into it. If incorrect data is entered at the source, it remains incorrect forever. This is where the engineer's role becomes vital. Instead of relying on a technician to manually record temperatures in a logbook, we connect the generator's control module (such as the DSE 8610) directly to the digital network.
The Concept in Simple Terms:
When a generator runs at a stable voltage and a frequency of 50Hz, it guarantees the continuity of power for cooling units like Porkka. We convert this mechanical state into "digital pulses" that are sent directly to the blockchain as a "Certificate of Continuity." In modern engineering, we call this a Power Oracle—the source that provides technical truth without human interference or embellishment.
From the Harsh Reality of the Field:
Many global studies (such as those published by Elsevier) discuss these technologies in ideal environments. However, the real test appears when you are working under temperatures nearing 50°C in heavy dust conditions. In these moments, linking sensors to the blockchain becomes a moral necessity before it is an engineering one. It is our way to ensure that the medicine reaching the citizen remained safe from power outages throughout its entire journey.
Conclusion:
For me, engineering is not just about maintaining diesel engines; it is about building bridges of trust between technology and human life. In the next chapter, we will discuss the significant gap between what research centers publish in universities and the harsh reality we face as engineers in the field.
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