國3大溪段特斯拉、BMW追撞工程車 1工人被 - 特斯拉
By Caitlin
at 2022-03-08T16:24
at 2022-03-08T16:24
Table of Contents
※ 引述《cosmite (焼き団子)》之銘言:
: 之前討論過ACC沒有辦法防止撞上靜止物
: 是因為可能有上坡被判定為靜止物的狀況
: 因為高速公路撞上蠍尾車的狀況真的層出不窮
: 那假如今天設定一個防呆裝置 讓ACC系統辨認
: 像是大型斜條紋斑馬紋反光板 即判定為靜止物
: 並規定以後工程車施工時都必須在尾端加掛反光板
: 不就可以減少這類三寶及工程人員及車輛的事故傷亡
: 雖然說肇因是駕駛人把ACC當自動駕駛
: 但利用防呆可以減少事故的話 還是值得的吧
: -----
: Sent from JPTT on my iPhone
實際可行性很低......
1. 絕大多數ACC系統
雷達:量測距離
鏡頭:確認量測到的物體是否為人or車
https://i.imgur.com/nPmeMdl.jpg
白色點是雷達量測到的訊號
有一堆干擾源,因此為避免錯誤偵測造成急煞,只輸出可動的物體量測
所以不論有沒有加反光板
對雷達來說感測到的還是靜止訊號,依舊會被系統濾掉
2. 少數主視覺的ACC系統
如Tesla的AP、Subaru的eyesight,靠成像判斷前方物體(車、人)
若訓練系統辨識黃黑相間的斜紋漆作為煞車的依據
那問題又來了,交通環境其實不乏斜紋漆的例子
分隔島
https://i.imgur.com/Y92zwQn.jpg
電線杆
https://i.imgur.com/dAnPmyh.jpg
當車輛在非直線行駛的狀態,一旦偵測到這些斜紋漆
不就會誤作動煞車了?
之所以稱為ADAS(Advanced Driver Assistance Systems)
就已經說明該系統屬於輔助性質
以嚴重性來說,誤作動>>>>>>不作動
而輔助要進展到自駕,從來都不是功能性
關鍵是提高到足夠可靠
也就是夠高的MTBF(Mean Time Between Failures, 平居失效間隔)
現階段把ADAS當自駕
這類錯誤使用方式只會造成民眾對系統更不信任
說穿了更不利自駕長遠的發展
--
: 之前討論過ACC沒有辦法防止撞上靜止物
: 是因為可能有上坡被判定為靜止物的狀況
: 因為高速公路撞上蠍尾車的狀況真的層出不窮
: 那假如今天設定一個防呆裝置 讓ACC系統辨認
: 像是大型斜條紋斑馬紋反光板 即判定為靜止物
: 並規定以後工程車施工時都必須在尾端加掛反光板
: 不就可以減少這類三寶及工程人員及車輛的事故傷亡
: 雖然說肇因是駕駛人把ACC當自動駕駛
: 但利用防呆可以減少事故的話 還是值得的吧
: -----
: Sent from JPTT on my iPhone
實際可行性很低......
1. 絕大多數ACC系統
雷達:量測距離
鏡頭:確認量測到的物體是否為人or車
https://i.imgur.com/nPmeMdl.jpg
白色點是雷達量測到的訊號
有一堆干擾源,因此為避免錯誤偵測造成急煞,只輸出可動的物體量測
所以不論有沒有加反光板
對雷達來說感測到的還是靜止訊號,依舊會被系統濾掉
2. 少數主視覺的ACC系統
如Tesla的AP、Subaru的eyesight,靠成像判斷前方物體(車、人)
若訓練系統辨識黃黑相間的斜紋漆作為煞車的依據
那問題又來了,交通環境其實不乏斜紋漆的例子
分隔島
https://i.imgur.com/Y92zwQn.jpg
電線杆
https://i.imgur.com/dAnPmyh.jpg
當車輛在非直線行駛的狀態,一旦偵測到這些斜紋漆
不就會誤作動煞車了?
之所以稱為ADAS(Advanced Driver Assistance Systems)
就已經說明該系統屬於輔助性質
以嚴重性來說,誤作動>>>>>>不作動
而輔助要進展到自駕,從來都不是功能性
關鍵是提高到足夠可靠
也就是夠高的MTBF(Mean Time Between Failures, 平居失效間隔)
現階段把ADAS當自駕
這類錯誤使用方式只會造成民眾對系統更不信任
說穿了更不利自駕長遠的發展
--
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