TWI540063B - 盲點偵測系統 - Google Patents
盲點偵測系統 Download PDFInfo
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- TWI540063B TWI540063B TW100129828A TW100129828A TWI540063B TW I540063 B TWI540063 B TW I540063B TW 100129828 A TW100129828 A TW 100129828A TW 100129828 A TW100129828 A TW 100129828A TW I540063 B TWI540063 B TW I540063B
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9315—Monitoring blind spots
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93275—Sensor installation details in the bumper area
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Traffic Control Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
本發明係指一種無線訊號收發器,尤指一種可有效簡化架構、降低成本及提升感測正確度之盲點偵測系統。
根據統計,大部份的交通意外事故都與駕駛者開車時分心有關。若駕駛者在有可能發生碰撞危險前的0.5秒得到預警,可以避免至少60%的追撞前車意外事故、30%的迎面撞車事故或50%的路面相關事故;若提前一秒得到預警,則可避免90%的交通意外事故。這些統計資料說明,如果提供駕駛者反應時間,將可有效降低交通意外事故的發生,而盲點偵測(Blind Spot Detection,BSD)系統就是在此需求下發展出的智慧型車輛配備。
盲點偵測系統是一種利用毫米波(Millimeter Wave)雷達感測技術達到預先示警的車用安全防護技術,其以機器視覺之影像自主辨識方式,偵測車輛左右側或前方盲點區內的障礙物狀態。若系統察覺特定障礙物存在於盲點區中,則主動發出預警燈號或警告聲響等訊息給予駕駛者,使駕駛者可根據警示結果決定其行駛方向,避免駕駛者因疏忽或視線死角等因素導致交通意外事故的發生。
一般而言,盲點偵測系統是將感測器設置於車輛後方(及/或前方)保險桿內,利用發射毫米波無線訊號,並接收對應的反射訊號,來判斷特定距離內是否有車輛、人員等障礙物。除此之外,為了加強判斷的準確度,避免誤判或誤警示的發生,盲點偵測系統尚需配合車速及角度偏離等車體相關資料,來決定是否啟動盲點偵測或進行除錯等,而這些資料需透過傳輸線由車輛內部的電子控制單元取得。在此情形下,車內線路的連接會變得更複雜,特別是現今智慧化車輛的功能、配備越來越多(如前方預警偵測雷達、車道變換輔助雷達、倒車雷達、防鎖死煞車系統、電子穩定系統等等),所需的電子控制單元及相關線路配置複雜度也跟著增加。同時,在傳輸的過程中需確保資料的正確性,避免受車輛電子元件或環境雜訊的干擾;例如,點火系統、發電機、兩刷、電動窗、電動座椅、冷氣機、收音機、自動供油系統、變速系統等在作用時可能產生雜訊,或是外在環境的高壓電、溫濕度變化等,皆可能影響資料傳輸的穩定度或正確性。
此外,車輛電子控制單元所輸出的資料可能不符合盲點偵測系統所需的資料規格,而需要再次轉換傳輸資料,因此會耽誤到需要即時同步的資料運算,造成時間延遲。
由上述可知,習知盲點偵測系統需由車輛內部的電子控制單元取得車速及角度偏離等車體相關資料,因而增加了設置的困難度,並降低了便利性,實有改進之必要。
因此,本發明之主要目的即在於提供一種盲點偵測系統。
本發明揭露一種盲點偵測系統,用於一交通工具,包含有一車體資訊偵測模組,用來取得該交通工具相對於一外在環境之至少一車體資訊;一警示器,用來產生一警示訊號;複數個感測器,每一感測器用來發射一無線訊號及接收該無線訊號之一反射訊號,以偵測一特定範圍內是否有一物體存在,並據以產生一偵測結果;以及一控制模組,用來根據該至少一車體資訊及該複數個感測器所產生之複數個偵測結果,控制該警示器產生該警示訊號。
請參考第1圖,第1圖為本發明實施例一盲點偵測系統10之示意圖。盲點偵測系統10設置於一汽車、巴士、卡車等交通工具上,用來感測特定盲點區內是否有車輛、人員等障礙物,並據以發出警示訊號,以避免駕駛者因疏忽或視線死角等因素導致交通意外事故的發生。盲點偵測系統10包含有一車體資訊偵測模組100、警示器ALM_1~ALM_m、感測器SR_1~SR_n及一控制模組102。車體資訊偵測模組100用來取得車輛相對於外在環境之車體資訊,如車速、加速度、傾斜度(相對於鉛垂線之角度),用以避免控制模組102誤判或誤警示的發生。感測器SR_1~SR_n設置於車輛的後方(及/或前方)保險桿內,用來利用雷達感測技術,偵測對於駕駛者而言之盲點區內是否有障礙物;亦即,感測器SR_1~SR_n可發射無線訊號並接收對應的反射訊號,藉此偵測特定範圍內是否有物體存在,並據以產生偵測結果DET_1~DET_n。控制模組102則根據車體資訊偵測模組100所輸出的車體資訊及感測器SR_1~SR_n回傳的偵測結果DET_1~DET_n,控制警示器ALM_1~ALM_m之運作。警示器ALM_1~ALM_m可以是發光二極體、喇叭等可發出預警燈號或警告聲響之裝置,用以提醒駕駛者是否有車輛或行人接近,其數量不限於任何規則,只要大於或等於1即可。
簡單來說,在盲點偵測系統10中,控制模組102進行盲點偵測時所需的車體資訊係由內建的車體資訊偵測模組100所提供。換言之,控制模組102不需由車輛內部的電子控制單元取得車速及角度偏離等車體相關資料,因而可減少車內線路的佈建,並可避免車體資訊於傳輸過程受到干擾。
需注意的是,第1圖之盲點偵測系統10係為本發明之實施例,本領域具通常知識者當可據以做不同之修飾,而不限於此。舉例來說,車體資訊偵測模組100係用以取得車輛相對於外在環境的車體資訊,而根據不同系統需求,其組成或實現方式應適應調整。舉例來說,若盲點偵測系統10所需的車體資訊包含車速、加速度、角度偏離等,則車體資訊偵測模組100可包含如全球衛星定位系統接收器、加速度計、陀螺儀等元件,且不限於此。
車體資訊偵測模組100所取得的車體資訊主要用來避免控制模組102誤判盲點區內的障礙物情形,而相對應的實現方式應視不同系統而適當變化。在一實施例中,控制模組102係根據車體資訊,決定感測器SR_1~SR_n的運作;例如,當車速未達一預設值時,控制模組102停止感測器SR_1~SR_n之運作。在另一實施例中,感測器SR_1~SR_n可根據車體資訊,決定是否運作,因此控制模組102係將車體資訊偵測模組100所輸出的車體資訊轉傳至感測器SR_1~SR_n。
另一方面,為了確保控制模組102與感測器SR_1~SR_n間的訊號正確傳輸,另可如第2圖所示,於控制模組102與感測器SR_1~SR_n間設置訊號收發器TR_1~TR_n,用以轉換或放大感測器SR_1~SR_n與控制模組102間的資料。
此外,前述說明僅描述盲點偵測系統中與本發明相關之組成元件,其它如電源系統、記憶體等輔助性元件,其非本發明之重點,故不詳述。例如,控制模組102可包含中央處理器及儲存裝置,其應係本領域具通常知識者所熟知之技藝。
如前所述,習知盲點偵測系統需由車輛內部的電子控制單元取得車速及角度偏離等車體相關資料,因而增加了設置的困難度,並降低了便利性。相較之下,在本發明之盲點偵測系統10中,控制模組102進行盲點偵測時所需的車體資訊係由內建的車體資訊偵測模組100所提供,因而可減少車內線路的佈建,簡化整體架構,降低成本,並避免車體資訊於傳輸過程受到干擾,以提升感測正確度。
綜上所述,本發明之盲點偵測系統可有效簡化架構、降低成本及提升感測正確度。
以上所述僅為本發明之較佳實施例,凡依本發明申請專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範圍。
10‧‧‧盲點偵測系統
100‧‧‧車體資訊偵測模組
ALM_1~ALM_m‧‧‧警示器
SR_1~SR_n‧‧‧感測器
102‧‧‧控制模組
DET_1~DET_n‧‧‧偵測結果
TR_1~TR_n‧‧‧訊號收發器
第1圖為本發明實施例一盲點偵測系統之示意圖。
第2圖為第1圖之盲點偵測系統增加訊號收發器之示意圖。
10...盲點偵測系統
100...車體資訊偵測模組
ALM_1~ALM_m...警示器
SR_1~SR_n...感測器
102...控制模組
DET_1~DET_n...偵測結果
Claims (6)
- 一種盲點偵測系統,用於一交通工具,包含有:一車體資訊偵測模組,獨立於該交通工具內部之一電子控制單元之外運作,用來自行取得該交通工具相對於一外在環境之至少一車體資訊,其中車體資訊為車速、加速度及該交通工具相對於一鉛錘線的角度;一警示器,用來產生一警示訊號;複數個感測器,每一感測器用來發射一無線訊號及接收該無線訊號之一反射訊號,以偵測一特定範圍內是否有一物體存在,並據以產生一偵測結果,其中,該每一感測器為雷達;一控制模組,用來根據該至少一車體資訊及該複數個感測器所產生之複數個偵測結果,控制該警示器產生該警示訊號;以及複數個訊號收發器,設於該複數個感測器與該控制模組之間,用來放大或轉換該複數個感測器與該控制模組間之資料;其中,該盲點偵測系統根據一內建射頻協定操作以不受干擾。
- 如請求項1所述之盲點偵測系統,其中該車體資訊偵測模組包含一全球衛星定位系統接收器,用來計算該交通工具之車速,以作為該至少一車體資訊。
- 如請求項1所述之盲點偵測系統,其中該車體資訊偵測模組包 含一加速度計,用來計算該交通工具之加速度,以作為該至少一車體資訊。
- 如請求項1所述之盲點偵測系統,其中該車體資訊偵測模組包含一陀螺儀,用來計算該交通工具相對於一鉛垂線的角度,以作為該至少一車體資訊。
- 如請求項1所述之盲點偵測系統,其中該控制模組另用來根據該至少一車體資訊,控制該複數個感測器之運作。
- 如請求項1所述之盲點偵測系統,其中該控制模組另將該至少一車體資訊傳送至該複數個感測器,該複數個感測器之每一感測器另用來根據該至少一車體資訊,控制該偵測結果的產生。
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TW100129828A TWI540063B (zh) | 2011-08-19 | 2011-08-19 | 盲點偵測系統 |
US13/313,029 US9262923B2 (en) | 2011-08-19 | 2011-12-07 | Blind spot detection system |
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US10408932B2 (en) | 2016-12-16 | 2019-09-10 | Automotive Research & Testing Center | Environment recognition system using vehicular millimeter wave radar |
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TWI551483B (zh) * | 2014-04-17 | 2016-10-01 | 財團法人工業技術研究院 | 盲區監控方法與系統 |
JP2017030569A (ja) * | 2015-07-31 | 2017-02-09 | アイシン精機株式会社 | 駐車支援装置 |
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US9262923B2 (en) | 2016-02-16 |
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