Method, device, electronic device and readable storage medium for determining rotational speed

A technology to determine the method and device, which is applied in the aviation field, can solve the problem of high delay, and achieve the effect of reducing update delay and obtaining quickly

Active Publication Date: 2021-04-16
西安联飞智能装备研究院有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the frequency calculation delay is higher in the periodic method

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  • Method, device, electronic device and readable storage medium for determining rotational speed
  • Method, device, electronic device and readable storage medium for determining rotational speed
  • Method, device, electronic device and readable storage medium for determining rotational speed

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] In order to solve the problem of large frequency calculation delay when determining the rotational speed, embodiments of the present invention provide a rotational speed determination method, device, electronic equipment, and readable storage medium, which can reduce the frequency calculation delay when the rotational speed decreases.

[0046] The method for determining the rotational speed provided by the embodiment of the present invention will firstly...

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Abstract

The embodiment of the present invention provides a speed determination method, device, electronic equipment, and readable storage medium, which are applied in the field of aviation technology. The method includes: acquiring a signal to be analyzed, starting a cycle counter, and the initial value of the cycle counter is 0; According to the time sequence of the signal to be analyzed, in each clock cycle, it is judged whether there is a rising edge in the signal to be analyzed; if not, when the value of the cycle counter does not reach the preset threshold, the value of the cycle counter is increased by 1; if the cycle counter is greater than or equal to the value of the latch, set the value of the latch to the value of the cycle counter, the initial value of the latch is the preset threshold; if yes, set the value of the latch to the value of the cycle counter , clear the value of the cycle counter to 0; determine the reciprocal of the value of the latch as the speed value. The invention can reduce the calculation delay of the rotation speed.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to a method, device, electronic equipment and readable storage medium for determining a rotational speed. Background technique [0002] In aviation technology, the rotor speed is an ultra-low-speed signal relative to the operating frequency of electronic devices. Generally, the frequency calculation of low-speed signals adopts the periodic method. The periodic method measures the time between two pulses and converts it into a period, and divides the unit time by the period value to obtain the frequency value. Due to the problem of half a time unit, there may be a maximum error of 1 time unit. When the rotor speed is high, the measured period is small, and the proportion of the error becomes larger. The period method is generally used to measure low-speed signals. However, the frequency calculation delay in the periodic method is high. Contents of the invention [0003] The pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/489
Inventor 王琦季雷宋乐刘炜袁豪放徐飞
Owner 西安联飞智能装备研究院有限责任公司
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