Equation 6 · Part 1 · Edge AI Electronics and Sensor Systems in Practice: Quantization, Power Budgets, and Sensor Front Ends

Symbol E_cycle

E_{\mathrm{cycle}} = P_{\mathrm{sleep}} \, t_{\mathrm{sleep}} + P_{\mathrm{active}} \, t_{\mathrm{active}} + n_{\mathrm{inf}} \, E_{\mathrm{inf}},

E_{\mathrm{cycle}}

What this part means

the energy spent in one full wake-sense-infer-sleep cycle, the first two terms are housekeeping power integrated over the time spent in each state, and $n_{\mathrm{inf}}$ inferences each cost a measured $E_{\mathrm{inf}}$ .

Its job in the formula

$E_c$ ycle is part of the quantity the equation computes from the expression on the right.

Full expressionSymbol E_cycleArticle meaning

Where the article explains it

where $E_{\mathrm{cycle}}$ is the energy spent in one full wake-sense-infer-sleep cycle, the first two terms are housekeeping power integrated over the time spent in each state, and $n_{\mathrm{inf}}$ inferences each cost a measured $E_{\mathrm{inf}}$ .

The passage around this formula

…analog front end draws while settling before a reading is valid. The more defensible starting point is a duty-cycle energy model built from measured, not assumed, currents at each state: $E_{\mathrm{cycle}} = P_{\mathrm{sleep}} \, t_{\mathrm{sleep}} + P_{\mathrm{active}} \, t_{\mathrm{active}} + n_{\mathrm{inf}} \, E_{\mathrm{inf}}$ . where $E_{\mathrm{cycle}}$ is the energy spent in one full wake-sense-infer-sleep cycle, the first two terms are housekeeping power integrated over the time spent in each state, and $n_{\mathrm{inf}}$ inferences each cost a measured $E_{\mathrm{inf}}$ . Every term in that expression should be a number taken…

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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