A wristband with a color-changing chemical strip and a mobile app that reads the color from a photo to track cumulative hydrogen sulfide exposure for oil and gas workers.
Mangalore Refinery and Petrochemicals Limited (MRPL) · Hardware
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Decomposed from what the description asks for. Nothing added.
Chemical Strip Formulation
Formulate a chemical strip that darkens progressively and permanently with cumulative exposure and accounts for temperature and humidity.
Expiry Indicator Patch
Design a separate patch on the wristband that shows whether the badge is still valid before use.
Mobile Capture App
Develop a phone application that captures a photograph of the strip next to a reference color scale.
Image Calibration Engine
Build an algorithm within the app to correct for lighting conditions and convert the strip color into a cumulative exposure figure.
Logging and Reporting
Implement a logging system to record exposure estimates against worker IDs and shift details for safety reporting.
Both columns are read off the brief's own wording. Nothing here is inferred from the ministry's name.
The jury will check if you have a working hardware prototype tested against a controlled lab-simulated hydrogen sulfide exposure, a validated shelf life, and an app that correctly reads exposure from a photograph.
A jury can still ask about these. Decide them deliberately rather than by accident.
Generated from the brief's own wording and the competition's published rules — never from a guess about what this ministry prefers.
The exact chemical formula to use for the strip?
The brief never answers this, so a panel will. Whatever you decide, say it the same way twice.
The specific target accuracy percentage for the dose estimate?
The brief never answers this, so a panel will. Whatever you decide, say it the same way twice.
The exact temperature and humidity compensation formula required?
The brief never answers this, so a panel will. Whatever you decide, say it the same way twice.
Has any part of this been shown at a previous event, hackathon or college project?
The guidelines are explicit: your solution must not have appeared in any previous event or programme, of any sort. A recycled project is what a team under time pressure reaches for.
Each one is quoted from a gap in the brief, not a guess about your team.
Needs physical hardware
Listed as a hardware problem statement, so a working demo needs physical components you have to source yourself.
Needs data you may not get
The expected solution requires testing against a controlled, lab-simulated hydrogen sulfide exposure at known concentration and duration, which requires specialized laboratory equipment and hazardous gas handling capabilities.
What the organisers attached, and what the brief assumes you can get.
Same organisation, same year. Reading two of theirs tells you more about what they care about than reading one.
Pick what you are about to do and copy the prompt. It carries the organisers' own wording, the constraints they never spell out, and an instruction not to invent requirements they never set.
Who has this problem, what already exists, and what you would have to find out.
The brief asks for chemical strip formulation. How would you build that?
Decoded from SIH26118 itself — Formulate a chemical strip that darkens progressively and permanently with cumulative exposure and accounts for temperature and humidity. The brief asks for it by name.
The brief asks for expiry indicator patch. How would you build that?
Decoded from SIH26118 itself — Design a separate patch on the wristband that shows whether the badge is still valid before use. The brief asks for it by name.
The brief asks for mobile capture app. How would you build that?
Decoded from SIH26118 itself — Develop a phone application that captures a photograph of the strip next to a reference color scale. The brief asks for it by name.
The brief asks for image calibration engine. How would you build that?
Decoded from SIH26118 itself — Build an algorithm within the app to correct for lighting conditions and convert the strip color into a cumulative exposure figure. The brief asks for it by name.
The brief asks for logging and reporting. How would you build that?
Decoded from SIH26118 itself — Implement a logging system to record exposure estimates against worker IDs and shift details for safety reporting. The brief asks for it by name.
Where does your data come from — a published source, one you collect, or one you generate?
No dataset is attached to this problem statement, so sourcing it is part of the work and nobody told you that.
Why not use what already exists? Name the closest thing to this that is already running.
A team that has not named the alternative themselves is answering this for the first time in the room.
Which single thing will you demonstrate end to end, start to finish, with nothing skipped?
Ours, not a rule: a narrow thing that fully works survives questioning better than a broad thing that half works. If nobody on the team can name it, that is the finding.
Show me this working: the jury will check if you have a working hardware prototype tested against a controlled lab-simulated hydrogen sulfide exposure, a validated shelf life, and an app that correctly reads exposure from a photograph.
This is the evaluator read for your problem statement, decoded from the brief's own wording.