Food delivery thermal test comparison calculator

Calculate time at or below threshold by package and observed peak through duration by package with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use time at or below threshold by package and observed peak through duration by package to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Recorded traces [package,[[minute,temperature °C],...]]; enter JSON
[["A",[[0,3],[30,5],[60,9]]],["B",[[0,2],[30,4],[60,6]]]]
Evaluated route duration (minutes)
60
User maximum temperature (°C)
6
Time at or below threshold by package (minutes, JSON)
{"A":37.5,"B":60}
Observed peak through duration by package (°C, JSON)
{"A":9,"B":6}

Try another scenario

Recorded traces [package,[[minute,temperature °C],...]]; enter JSON
[["A",[[0,4],[30,7],[60,10]]],["B",[[0,3],[30,5],[60,7]]]]
Evaluated route duration (minutes)
45
User maximum temperature (°C)
7
Time at or below threshold by package (minutes, JSON)
{"A":30,"B":45}
Observed peak through duration by package (°C, JSON)
{"A":8.5,"B":6}
Calculation method

Calculation method

Time at or below threshold by package (minutes, JSON)

Integrate linear trace segments within duration, counting temperature<=threshold; no extrapolation.

Observed peak through duration by package (°C, JSON)

Maximum sampled/interpolated temperature on clipped time window.

Symbols and units
a
Recorded traces [package,[[minute,temperature °C],...]]; enter JSON
b
Evaluated route duration (minutes)
c
User maximum temperature (°C)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Compare measured route temperature traces by interpolation; supplied threshold is not a safe-delivery standard. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. Traces begin at zero, strictly increase, cover requested duration; temperatures finite.
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