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公开(公告)号：US5831937A
公开(公告)日：1998-11-03
申请号：US833601
申请日：1997-04-09
CPC分类号： G06K9/00348 , A61B5/1038 , G01S11/14 , G01S11/16
摘要： A portable ranging system for analyzing gait is disclosed comprising a transponder having an infrared receiver and an ultrasound emitter, a base unit having an infrared emitter and an ultrasound receiver, and a computer terminal. During gait analysis, the transponder is worn by a subject at approximately the level of the body center of mass. As the subject walks away from the base unit, the base unit continuously causes, at a constant sampling rate, the ultrasound emitter to emit ultrasound pulses. These ultrasound pulses are received by the ultrasound receiver of the base unit. The computer terminal, by counting during the flight of each ultrasound pulse, is able to calculate the time of flight of each ultrasound pulse, and thus calculate and display in real time the forward progression of the subject. At the end of the walking trial, the computer terminal displays the instantaneous velocity profile, or gait velocigram (GVG), for that trial. From the GVG, the computer terminal calculates and displays gait parameters such as gait speed, cadence, step time, step length, peak-to-peak variation, and time to achieve steady state walking. From the displayed data, gait pathologies can be readily identified.
摘要翻译： 公开了一种用于分析步态的便携式测距系统，包括具有红外接收器和超声发射器的转发器，具有红外发射器和超声波接收器的基座单元以及计算机终端。 在步态分析期间，应答器在身体质心水平近似被受试者佩戴。 当被摄物体离开基座单元时，基座单元以恒定的采样速率连续地使超声波发射器发射超声脉冲。 这些超声波脉冲由基本单元的超声波接收器接收。 计算机终端通过在每个超声波脉冲的飞行期间进行计数，能够计算每个超声脉冲的飞行时间，从而实时计算和显示被检体的前进进程。 在步行试验结束时，计算机终端显示该试验的瞬时速度曲线或步态速度（GVG）。 从GVG，计算机终端计算和显示步态参数，如步态速度，节奏，步进时间，步长，峰 - 峰变化和实现稳态行走的时间。 从显示的数据可以容易地识别步态病变。
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公开(公告)号：US5652593A
公开(公告)日：1997-07-29
申请号：US315261
申请日：1994-09-29
申请人： Quentin H. Rench , Stephen Jacobs
发明人： Quentin H. Rench , Stephen Jacobs
CPC分类号： G01S15/931 , G01S11/16 , G01S5/22 , G05D1/0242 , G05D1/0255 , A47L2201/04 , G01S13/881 , G01S15/88 , G01S2015/938 , G05D2201/0201 , G05D2201/0203 , G05D2201/021
摘要： The disclosure involves a method for guiding a machine within an area. Such method includes the steps of triggering an acoustic locating signal from a stationary "beacon-type" base module to a receiver on the machine. The method is applicable for one-beacon, two-receiver and two-beacon, one-receiver applications. A related apparatus also includes a device for emitting a trigger signal and a device for determining the time elapsed between transmission and reception of the locating signal. An operating principle involves computing the module-to-machine distance by determining the "time of flight" of such signal. The machine is steered along a path, the locus of which is defined by an equation.
摘要翻译： 本公开涉及一种用于在区域内引导机器的方法。 这种方法包括以下步骤：将来自固定的“信标型”基本模块的声学定位信号触发到机器上的接收器。 该方法适用于单信标，双接收机和双信标，单接收机应用。 相关装置还包括用于发射触发信号的装置和用于确定定位信号的发送和接收之间经过的时间的装置。 操作原理包括通过确定这种信号的“飞行时间”来计算模块到机器的距离。 机器沿着路径转向，其轨迹由等式定义。
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公开(公告)号：US5491670A
公开(公告)日：1996-02-13
申请号：US278678
申请日：1994-07-21
申请人： T. Jerome Weber
发明人： T. Jerome Weber
CPC分类号： G01S5/30 , G01S15/874 , G05D1/0255 , G01S11/16 , G01S5/186
摘要： A system and method for determining the position of an automatically guided vehicle within a workspace is disclosed which operates by detecting sounds generated by beacons placed within the workspace. The time for the beacon sounds to reach the vehicle is measured and a distance to each beacon is determined. From these measured distances and the known positions of the beacons, the vehicle can determine its relative position.
摘要翻译： 公开了一种用于确定工作空间内的自动引导车辆的位置的系统和方法，其通过检测由放置在工作空间内的信标产生的声音进行操作。 测量信标到达车辆的声音的时间，并且确定到每个信标的距离。 从这些测量的距离和信标的已知位置，车辆可以确定其相对位置。
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44.依法登记的发明
公开(公告)号：USH1132H
公开(公告)日：1993-01-05
申请号：US831718
申请日：1992-02-05
CPC分类号： G01N29/024 , G01N2291/0222 , G01N2291/02416 , G01S5/14 , G01S5/30 , G01S11/16
摘要： An apparatus and method for determining the position of an object, especially the position of a movable object in an industrial vessel. The position is determined by the use of two signals having a very large difference in their velocities, such as electromagnetic and acoustic waves. The object whose position is to be determined receives the electromagnetic signal, analyzes the electromagnetic signal, and, if appropriate, transmits an acoustic signal. In addition to the object containing an electromagnetic receiver and an acoustic transmitter, there is required an electromagnetic transmitter, three or more receivers to receive the acoustic signal from the object, and supporting equipment to process signals and log data. When the object transmits an acoustic signal, the acoustic receivers, which are in known positions in the vessel, receive the signal at different times depending on the distance of the object from each receiver. From the speed of the acoustic signal in the medium contained in the vessel and the time required for the signal to reach each receiver, the distances from each receiver to the object are calculated. Because the location of each receiver is known, it is possible by triangulation to calculate the position of the object.
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公开(公告)号：US4376301A
公开(公告)日：1983-03-08
申请号：US215207
申请日：1980-12-10
申请人： F. Alex Roberts
发明人： F. Alex Roberts
CPC分类号： G01V1/3835 , G01S11/16 , G01S5/30
摘要： Method and means are provided for determining the position of a submerged marine streamer towed behind an exploration vessel. A sonic ring around feedback system is employed to redundantly ascertain the distance to various hydrophones housed in the streamer from an outboard mounted transponder capable of generating high frequency sound pulses of short duration.
摘要翻译： 提供了用于确定拖曳在勘探船后面的潜水船用拖缆的位置的方法和装置。 使用反馈系统周围的声环来冗余地确定从能够产生短持续时间的高频声音脉冲的外侧安装的应答器容纳在拖缆中的各种水听器的距离。
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46.发明授权Instrument and method for measuring and indicating speed of a moving, sound-emitting object 失效用于测量和指示移动的发光物体的速度的仪器和方法
公开(公告)号：US3878729A
公开(公告)日：1975-04-22
申请号：US37039773
申请日：1973-06-15
申请人： SPALDING ROBERT S
发明人： SPALDING ROBERT S
摘要： A device and method for indicating the speed of a distant moving and sound-emitting object utilizes the difference in the speed of light and the speed of sound to indicate the speed of the object by measuring the angle included between a reference line extending in the direction from which the sound of the object is received and a reference line extending toward the visual image of the object and converting the included angle into a numerical value indicative of the speed of the object.
摘要翻译： 用于指示远处移动和发声对象的速度的装置和方法利用光速和声速的差异来指示对象的速度，通过测量包括在方向上延伸的参考线之间的角度 从其接收对象的声音和向对象的视觉图像延伸的参考线，并将所包含的角度转换为指示对象的速度的数值。
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公开(公告)号：US20240345246A1
公开(公告)日：2024-10-17
申请号：US18588466
申请日：2024-02-27
发明人： Wilfred Edwin BOOIJ , Arne ØYEN
IPC分类号： G01S15/66 , G01S5/02 , G01S5/18 , G01S5/30 , G01S7/00 , G01S11/16 , G01S15/42 , H04B11/00 , G01S15/46
CPC分类号： G01S15/66 , G01S5/02585 , G01S5/18 , G01S5/30 , G01S7/003 , G01S7/006 , G01S11/16 , G01S15/42 , H04B11/00 , G01S2015/465
摘要： An acoustic location determination system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The transmitting device includes a first transducer configured to transmit first acoustic signals having a first frequency, and a second transducer configured to transmit second acoustic signals having a second frequency. The transmitting device further includes a beacon device configured to transmit beacon data via a short-range wireless communication technique. The transmitting device further includes one or more control devices configured to select the first or second acoustic signals based at least in part on one or more operating capabilities of one or more mobile units associated with the real-time locating system. The one or more control devices are further configured to cause transmission of the selected acoustic signals and the beacon data.
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49.发明公开公开(公告)号：US20240302514A1
公开(公告)日：2024-09-12
申请号：US18279461
申请日：2022-03-03
申请人： Elta Systems Ltd.
发明人： Noam FRENKEL , Erez SHARON , Ram WARHAFTIG , Slava KANDIBA , Hen PINTO
CPC分类号： G01S11/16 , G01S3/783 , G01S3/8083 , G01S5/16 , G01S5/18
摘要： A computerized system is configured to detect optical and acoustic events. It is operatively coupled to optical sensor(s) and acoustic sensor(s). It comprises a processing circuitry configured to perform the following: (a) receiving optical data from the optical sensor(s), indicative of optical event(s) associated with an event source(s). (b) receiving acoustic data from the acoustic sensor, indicative of acoustic event(s) associated with the event source. The optical sensor and the acoustic sensor are time-synchronized. (c) identifying the optical and acoustic events, based at least on the optical and acoustic data, (d) determining at least one of: distance and direction of the event source, relative to one or more of the optical sensor and the acoustic sensor. The determination is based at least on the optical event, the acoustic event, the optical data and the acoustic data.
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公开(公告)号：US20240288561A1
公开(公告)日：2024-08-29
申请号：US18400804
申请日：2023-12-29
发明人： Endre BAKKA , Wilfred Edwin BOOIJ
CPC分类号： G01S11/16 , G01S11/08 , H04W56/002
摘要： A communication device including a clock, a memory, and at least one processor is disclosed. The at least one processor is configured to execute instructions stored in the memory that cause the at least one processor to perform operations including receiving at least one message from a second communication device of a plurality of communication devices over a preconfigured time duration, determining a first local time of the clock of the communication device at which the at least one message from the second communication device is received, and determining a sync-time of the second communication device based on the at least one message from the second communication device. The operations include mapping the sync-time of the second communication device based on the first local time and the determined sync-time of the second communication device and adjusting a sync-time of the communication device based on the second local time.
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