# Помощь в проекте

**URL:** <https://forum.xod.io/t/topic/7100>\
**Category:** XOD Programming Questions\
**Created:** [February 21, 2025, 9:03am UTC](https://forum.xod.io/t/topic/7100 "2025-02-21T09:03:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![slipcheg82](https://avatars.discourse-cdn.com/v4/letter/s/7993a0/32.png) [@slipcheg82](https://forum.xod.io/u/slipcheg82)\
**Post date:** [February 21, 2025, 9:03am UTC](https://forum.xod.io/t/topic/7100/1 "2025-02-21T09:03:55Z")

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Здравствуйте. Мне нужно составить программу для срабатывания реле при превышении скорости с постоянным мониторингом.Сигнал будет с датчика скорости 0 или 5 вольт. Грубо говоря измерить частоту сравнить и если превышает выдать логическую единицу. Не пойму какие мне использовать блоки. Подскажите пожалуйста.

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**Author:** ![gweimer](https://avatars.discourse-cdn.com/v4/letter/g/a9adbd/32.png) [@gweimer](https://forum.xod.io/u/gweimer)\
**Post date:** [February 22, 2025, 2:40am UTC](https://forum.xod.io/t/topic/7100/2 "2025-02-22T02:40:16Z")

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Assuming the speed sensor is pulsing high when a shaft sensor is triggered, the time the signal is low will determine speed. This can be measured using pulse-in node if the pulses do not come too fast. If the output of pulse-in is too low (the pulses came too fast for desired speed), then speed is too high (use greater node to compare), and relay should be enabled.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/1X/eb7348baa04192c2ef932d1db54d44f09f8a7888.png) [@system](https://forum.xod.io/u/system)\
**Post date:** [March 24, 2025, 2:40am UTC](https://forum.xod.io/t/topic/7100/3 "2025-03-24T02:40:29Z")

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