CN1241712A - 一种减小超声波测距装置盲区的方法 - Google Patents
一种减小超声波测距装置盲区的方法 Download PDFInfo
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- CN1241712A CN1241712A CN 98114159 CN98114159A CN1241712A CN 1241712 A CN1241712 A CN 1241712A CN 98114159 CN98114159 CN 98114159 CN 98114159 A CN98114159 A CN 98114159A CN 1241712 A CN1241712 A CN 1241712A
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- 239000000523 sample Substances 0.000 claims abstract description 17
- 238000002604 ultrasonography Methods 0.000 claims description 8
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- 238000005259 measurement Methods 0.000 description 2
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- 一种减小超声波测距装置盲区的信号处理方法,这种装置利用声波反射原理且其超声波探头由单个超声波换能器构成,本方法的特征在于:当超声波探头与反射超声波的物体位置较近时,识别尚存在的未与发射波重叠的第m次及相邻的第m+1次回波,并利用第m次及相邻的第m+1次回波收到时间或其时间间隔来计算出被测距离L,设tm.m+1为第m次与第m+1次回波的时间间隔,tm为从超声波开始发射到第m次回波被接收所用的时间,tm+1为从超声波开始发射到第m+1次回波被接收所用的时间,v为已知的超声波在介质中的传播速度,公式为:L=v·tm.m+1/2或L=v·(tm+1-tm)/2式中m为自然数。
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CN 98114159 CN1120980C (zh) | 1998-07-14 | 1998-07-14 | 一种减小超声波测距装置盲区的方法 |
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CN 98114159 CN1120980C (zh) | 1998-07-14 | 1998-07-14 | 一种减小超声波测距装置盲区的方法 |
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CN1241712A true CN1241712A (zh) | 2000-01-19 |
CN1120980C CN1120980C (zh) | 2003-09-10 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101915917A (zh) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | 超声波测距装置 |
CN102749108A (zh) * | 2012-07-11 | 2012-10-24 | 浙江大学 | 基于激发能量控制减小超声波换能器工作盲区的方法 |
CN105699975A (zh) * | 2016-02-26 | 2016-06-22 | 北京臻迪机器人有限公司 | 一种超声波测距方法及超声波测距装置 |
CN105954539A (zh) * | 2016-07-11 | 2016-09-21 | 南京世海声学科技有限公司 | 一种减小adcp换能器盲区的方法 |
CN108572365A (zh) * | 2017-03-09 | 2018-09-25 | 重庆零度智控智能科技有限公司 | 使用单探头的超声波测距方法、装置及电路 |
CN109426265A (zh) * | 2017-08-30 | 2019-03-05 | 苏州宝时得电动工具有限公司 | 自移动设备 |
CN109633655A (zh) * | 2018-12-29 | 2019-04-16 | 肇庆奥迪威传感科技有限公司 | 超声波测距方法及超声波测距装置 |
CN110928285A (zh) * | 2018-09-20 | 2020-03-27 | 宝时得科技(中国)有限公司 | 自动行走设备、及其悬崖识别方法与装置 |
-
1998
- 1998-07-14 CN CN 98114159 patent/CN1120980C/zh not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101915917A (zh) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | 超声波测距装置 |
CN101915917B (zh) * | 2010-08-31 | 2012-09-19 | 上海交通大学 | 超声波测距装置 |
CN102749108A (zh) * | 2012-07-11 | 2012-10-24 | 浙江大学 | 基于激发能量控制减小超声波换能器工作盲区的方法 |
CN102749108B (zh) * | 2012-07-11 | 2014-01-29 | 浙江大学 | 基于激发能量控制减小超声波换能器工作盲区的方法 |
CN105699975A (zh) * | 2016-02-26 | 2016-06-22 | 北京臻迪机器人有限公司 | 一种超声波测距方法及超声波测距装置 |
CN105699975B (zh) * | 2016-02-26 | 2018-06-29 | 北京臻迪机器人有限公司 | 一种超声波测距方法及超声波测距装置 |
CN105954539A (zh) * | 2016-07-11 | 2016-09-21 | 南京世海声学科技有限公司 | 一种减小adcp换能器盲区的方法 |
CN108572365A (zh) * | 2017-03-09 | 2018-09-25 | 重庆零度智控智能科技有限公司 | 使用单探头的超声波测距方法、装置及电路 |
CN109426265A (zh) * | 2017-08-30 | 2019-03-05 | 苏州宝时得电动工具有限公司 | 自移动设备 |
CN110928285A (zh) * | 2018-09-20 | 2020-03-27 | 宝时得科技(中国)有限公司 | 自动行走设备、及其悬崖识别方法与装置 |
CN109633655A (zh) * | 2018-12-29 | 2019-04-16 | 肇庆奥迪威传感科技有限公司 | 超声波测距方法及超声波测距装置 |
CN109633655B (zh) * | 2018-12-29 | 2020-10-16 | 肇庆奥迪威传感科技有限公司 | 超声波测距方法及超声波测距装置 |
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CN1120980C (zh) | 2003-09-10 |
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