Self-powered signal generator and cowstep system based on nanogenerator

Abstract

The present invention proposes a self-powered pedometer signal generator based on a nanogenerator, including a power generation device, an energy storage device, and a wireless transmitting device, wherein the power generation device further includes a fixing mechanism, at least one cantilever beam mechanism and at least one nanogenerator . The self-powered signal generator directly converts the mechanical energy generated during the cow's movement into electrical energy through the nanogenerator, realizes the passiveization of the signal generator, has a simple structure, good stability, and improves the accuracy of step counting. The present invention also proposes a nanogenerator-based bullstep system, including a self-powered pedometer signal generator and a terminal, wherein the terminal further includes: a wireless receiving device, a central processing device, and a display device. The cattle step system completes the calculation and display of the cattle's exercise data through the terminal, so that the operator can accurately grasp the physiological changes and health status of the cattle.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a self-powered signal generator based on a nanogenerator and a bullstep system. Background technique [0002] The estrus cycle of a cow is 21 days, of which the fertile time is only 16 hours. If you miss this time period, you will have to wait another 21 days. In the traditional management mode, in order to observe the signs of estrus of cattle, the ranch staff need to confirm the status of cattle at any time. The estrus time of cattle is mainly at night and early morning. Even if a camera is installed, it is still difficult to effectively observe. In fact, even experienced staff have an average detection rate of only 58% when observing with the naked eye. [0003] However, there are signs of everything, and those cows who are in heat will increase their pace by moving more than usual. On this basis, Fujitsu developed the cow step system, which uses pedometers with built-...

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Problems solved by technology

[0004] But there are following problems in existing bullstep system: (1) the pedometer signal generator (pedometer) of prior art is complex in structure, and cost is higher; When it is exhausted, the Niubi system fails, and it is troublesome to replace the power supply; (3) The Niubu system of the prior art adopts the step counting algorithm of "one step at a time", which is prone to miscalculation or omission, and wastes electric energy at the same time

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