如何使用嵌入式C找到自由落体检测？ [英] How to find Free-Fall Detection using Embedded C ?

问题描述

我正在创建自动跌倒检测设备，其中两个传感器加速度计和陀螺仪用于分析身体位置的变化。



那么，如何找到免费 - 使用嵌入式C代码进行瀑布检测？



嵌入式C中是否有可用于自由落体检测的库？



或



传感器融合库是否可用于嵌入式C？

I am creating Automatic Fall Detection device, in which two sensors accelerometer and gyroscope are used to analyze changes in a body's position.

So, how to find Free-Fall Detection using Embedded C code?

Does any library available in Embedded C for Free-Fall detection?

OR

Does Sensor Fusion library available in Embedded C ?

推荐答案

取自此堆栈交换回答： http://arduino.stackexchange.com/questions/4223/enable -free-fall-detection-using-arduino [ ^ ]



将加速度计平放在长凳上将在3个轴中产生1G的值。



自由落体加速度计（假设你没有达到终端速度）应该在所有3个轴上读到接近零。



我不知道你可以为此设置的模式，但是如果你检查3轴的值并且都接近零，那么你可能处于自由落体状态。

Taken from this stack exchange answer: http://arduino.stackexchange.com/questions/4223/enable-free-fall-detection-using-arduino[^]

"Sitting an accelerometer flatly on a bench will produce a value of 1G in one of the 3 axes.

Free fall of an accelerometer (assuming you haven't reached terminal velocity) should read near zero on all 3 axes.

I am not aware of a mode you can set for this, but if you check the values of the 3 axes and all are close to zero, you are probably in a free fall condition."

我认为谷歌的效率远高于此处的要求。

请仔细选择加速度计，因为并非所有加速度计都有用。

请看：

http://cache.freescale.com/files/sensors/doc/app_note/AN3151.pdf [ ^ ]



http://www.analog.com/library/analogdialogue/archives /43-07/fall_detector.html [ ^ ]



http://electronics.stackexchange.com/questions/83093/fall-detection-using-accelerometer [ ^ ]



您问嵌入式C中是否提供传感器融合库？



这是什么意思？没有通用的嵌入式库这样的东西。你在用什么处理器？

I think Google will be far more productive than asking here.
Choose your accelerometer carefully as not all are useful for this purpose.
Look at:
http://cache.freescale.com/files/sensors/doc/app_note/AN3151.pdf[^]

http://www.analog.com/library/analogdialogue/archives/43-07/fall_detector.html[^]

http://electronics.stackexchange.com/questions/83093/fall-detection-using-accelerometer[^]

You ask "Does Sensor Fusion library available in Embedded C ?"

What does that mean? There is no such thing as a generic "embedded" library. What processor are you using?

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