基于加速度量測(cè)幅值零速檢測(cè)的計(jì)步算法研究
發(fā)布時(shí)間:2018-05-15 11:00
本文選題:計(jì)步 + 零速檢測(cè) ; 參考:《武漢大學(xué)學(xué)報(bào)(信息科學(xué)版)》2017年06期
【摘要】:準(zhǔn)確的步數(shù)統(tǒng)計(jì)是進(jìn)行人員航位推算的關(guān)鍵,通過(guò)分析行人運(yùn)動(dòng)模型及步行姿態(tài),設(shè)計(jì)了一種基于零速檢測(cè)的加速度量測(cè)幅值計(jì)步算法,實(shí)現(xiàn)了載體坐標(biāo)系和行人地理坐標(biāo)系的轉(zhuǎn)換,剔除了偽零速現(xiàn)象,在室內(nèi)模擬環(huán)境下采用低成本的微機(jī)電機(jī)械系統(tǒng)(micro electro mechanical system,MEMS)慣性測(cè)量元件對(duì)人員行走進(jìn)行檢測(cè),實(shí)現(xiàn)了行人運(yùn)動(dòng)姿態(tài)的有效識(shí)別和步數(shù)的精確統(tǒng)計(jì)。實(shí)驗(yàn)結(jié)果表明,該計(jì)步方法準(zhǔn)確性高,對(duì)不同的運(yùn)動(dòng)環(huán)境(走廊、拐角和樓梯)具有良好的適應(yīng)性,計(jì)步正確率均達(dá)到98%以上,并且所用的測(cè)量元件功耗低,便于攜帶,適合室內(nèi)復(fù)雜環(huán)境。
[Abstract]:Accurate step statistics is the key to the calculation of human cadence. Based on the analysis of pedestrian motion model and walking attitude, an accelerometer step algorithm based on zero velocity detection is designed. The transformation of carrier coordinate system and pedestrian geographical coordinate system is realized, and the pseudo zero velocity phenomenon is eliminated, and the low cost micro electro mechanical system MEMS inertial measuring element is used to detect the walking of personnel in the indoor simulation environment. The effective recognition of pedestrian motion posture and the accurate statistics of the number of steps are realized. The experimental results show that the method has high accuracy, good adaptability to different moving environments (corridor, corner and staircase), and the accuracy rate of step calculation is over 98%, and the power consumption of the measuring elements used is low, which is easy to carry. Suitable for complex indoor environment.
【作者單位】: 中國(guó)礦業(yè)大學(xué)環(huán)境與測(cè)繪學(xué)院;
【基金】:國(guó)家自然科學(xué)基金資助(41371423) 國(guó)家重點(diǎn)研發(fā)計(jì)劃(2016YFB0502105) 江蘇省自然科學(xué)基金(BK20161181)~~
【分類(lèi)號(hào)】:TH-39
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本文編號(hào):1892180
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