跟車測速 的英文怎麼說
中文拼音 [gēnjūcèsù]
跟車測速
英文
car following method- 跟 : Ⅰ名詞(腳的後部或鞋襪 的後部) heel Ⅱ動詞1 (在後面緊接著行動) follow 2 (指嫁給某人) be marrie...
- 車 : 車名詞1. (中國象棋棋子的一種) chariot, one of the pieces in chinese chess2. (國際象棋棋子的一種) castle; rook
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 測速 : logging speed
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Based on the model of safe following distance, the design blue print of system is presented in the text. using the multiple impulses horae rotate speed sensor to measure the vehicle speed and nanometer radar to measure the distance of own vehicle to frontal vehicle, and analyzing and judging collected information by at89c51 which is the control centre of the system
本文在安全跟車模型的基礎上,提出了系統方案:採用霍爾多脈沖轉速傳感器測量汽車的速度,毫米波雷達測量兩車的距離和相對速度,利用at89c51作為信息採集單元的控制中心,對各種信息進行分析判斷,當行車距離小於報警距離時啟動相關的報警單元。Abstract : it is expounded the composition and detection method of the diagnostic system of dynamic failure for locomotive running gear. also discussed are the key technologies as ultrasonic resonance demodulation, identification of locomotive type & speed, message sampling of sensors tracing running mechanism and three dimensional diagnosis, as well as the feasibility test
文摘:闡述了機車走行部動態故障診斷系統的組成及檢測方法,介紹了超聲共振解調、車型車速識別、多個傳感器跟蹤運動機械的信息采樣、三維診斷等關鍵技術及其可行性試驗情況。With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones
通過建立速度跟蹤束流的數學模型,較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法,成功地解決了速度精度問題(誤差在士1 %內) ;通過檢測接近開關觸發的脈沖數,適時校核所有小車位置,消除各車之間距離計算誤差,從而很好地解決了距離累計計算誤差。The change rule between headway and space headway of three phases were analysis, and the statistic model of headway and space headway with following car speed were gain. the expectation space headway in different speed under special tr
驗證了穩定跟車狀態存在期望車頭間距,實測數據顯示,期望車頭間距受車速的影響,並獲得了特定交通條件和道路條件下不同速度所對應的期望車頭間距。On the basis of reviewing the field in car following in the world, the disadvantage of time series data of car following in existing research was found in this dissertation. the direction of research breakthrough were : high precision car following field data collecting methodology without jamming, the index and methodology of classing the car following phase in expressway, constructing car following model uniform with randomicity and orderliness, train of thoughts and technology route were : starting off practice, depending on high precision instrument to collect car following data, exercising scientific theory methodology, combining with computer simulation
文章在認真分析國內外車輛跟馳理論領域研究的基礎上,綜合評述已有的成果,發現已有的研究缺乏描述跟車行為的時間序列數據,針對跟車模型存在的問題,選定研究的突破方向為:無人為干擾的高精度車輛跟馳實測數據採集方法、在實測數據基礎上,定性與定量相結合,確定快速路車輛行駛狀態指標及其種類劃分的方法、建立隨機性與規律性相統一的車輛跟馳模型。We partitions the image to three plots, intake area, tracking region, exit region. results from experiments show that the model of hsv adaptive background with shadow detection and extended kalman filter tracking has segmented moving objects and detected shadow so easy and accurately tracked moving vehicles in large area, multiple objects and complex environments. and the system has flexible mathematic model and can meet real - time and practicality requirements
從處理的結果看,本文提出的帶陰影檢測的hsv空間自適應背景模型和卡爾曼濾波運動目標跟蹤模型,易於實現運動物體的分割、及陰影檢測,能比較準確的實現大范圍、多目標的跟蹤,而且數學模型簡單,運算速度快,系統具有很強的魯棒性和實用性,能滿足實時行進車輛的檢測和追蹤的要求。The experimnet shows that it is effficient to detect high speed vehicles by means of background models and shadows can be correctly detected with shadow detection algo
經過實際數據的驗證該系統能夠比較好地對快速行進的車輛進行檢測和跟蹤,並且能夠正確地檢測陰影。分享友人