公开(公告)号：WO2016012920A1

公开(公告)日：2016-01-28

申请号：PCT/IB2015/055434

申请日：2015-07-17

Applicant: STMICROELECTRONICS S.R.L.

Inventor： D'ANGELO, Francesco ,  CORONA, Stefano

IPC: G01S15/93 ,  G01S15/02 ,  G01S15/10 ,  G01S7/523 ,  G01S7/521

CPC classification number: G01S15/12 ,  G01S7/521 ,  G01S7/523 ,  G01S7/529 ,  G01S15/025 ,  G01S15/10 ,  G01S15/93 ,  G10K11/004

Abstract: A device for detecting obstacles (10) that is wearable by a subject (18) on a foot (19), in particular integrated in an item of footwear (30) that is wearable by the subject (18), the aforesaid device (10) comprising at least one ultrasound source (12T) for emitting an ultrasound transmission signal (UT) and an ultrasound receiver (12T) for receiving a corresponding ultrasound signal (UR) reflected by an obstacle (16), a control module (11) for measuring a time of flight (At) between emission of the ultrasound transmission signal (UT) and reception of the corresponding ultrasound signal (UR) reflected by the obstacle (16) and calculating, on the basis of the aforesaid time of flight (Δt), the distance (d) at which the obstacle (16) is located. The device comprises an inertial sensor (13), in particular an acceleration sensor, designed to measure acceleration of the foot (19) along three axes (x, y, z), and a control module (11) configured for enabling operation of the ultrasound source (12T) if the aforesaid acceleration values measured by the inertial sensor (13) respect a given condition (Cen) for enabling measurement of the time of flight (Δt).

Abstract translation: 一种用于检测由脚部（19）上的被摄体（18）穿戴的障碍物（10）的装置，特别是集成在由被摄体（18）穿戴的鞋类物品（30）中的前述装置（10） ）包括用于发射超声波传输信号（UT）的至少一个超声波源（12T）和用于接收由障碍物（16）反射的对应的超声信号（UR）的超声波接收器（12T），用于 测量在超声波发射信号（UT）的发射和由障碍物（16）反射的对应的超声波信号（UR）的接收之间的飞行时间（At），并且基于上述飞行时间（Δt） ，障碍物（16）所在的距离（d）。 该装置包括惯性传感器（13），特别是加速度传感器，其被设计成测量沿三个轴线（x，y，z）的脚部（19）的加速度;以及控制模块（11） 如果由惯性传感器（13）测量的上述加速度值相对于能够测量飞行时间（Δt）的给定条件（Cen），则超声波源（12T）。

公开(公告)号：EP3172590B1

公开(公告)日：2020-10-28

申请号：EP15762717.5

申请日：2015-07-17

Applicant: STMicroelectronics S.r.l.

Inventor： D'ANGELO, Francesco ,  CORONA, Stefano

IPC: G01S15/86 ,  G01S7/529 ,  G01S15/93 ,  G01S15/02 ,  G01S15/10 ,  G01S7/521 ,  G01S7/523

公开(公告)号：EP3336581A1

公开(公告)日：2018-06-20

申请号：EP17175103.5

申请日：2017-06-08

Applicant: STMicroelectronics S.r.l.

Inventor： CORONA, Stefano ,  ALBERTINI, Matteo ,  D'ANGELO, Francesco

IPC: G01S15/10 ,  G01S7/523

CPC classification number: G01S7/524 ,  G01S7/523 ,  G01S7/527 ,  G01S15/102 ,  G01S15/108 ,  G01S15/93

Abstract: A method of detecting objects, e.g. by means of piezoelectric transducers, includes transmitting acoustic signals (TW) including sets of pulses towards an object (0) to induce echo signals (EW) resulting from reflection of the acoustic signals at the object, wherein the time delay of the echo signals is indicative of the distance (D) to the object. The method includes transmitting a first acoustic signal including a first set of pulses including a first number of pulses, and checking if a first echo signal resulting from reflection of the first acoustic signal is received with an intensity reaching an echo detection threshold. If the intensity of the first echo signal reaches the echo detection threshold, the distance to the object is calculated as a function of the time delay of the first echo signal. If the intensity of the first echo signal fails to reach the echo detection threshold, one or more further acoustic signals are transmitted including a set of pulses wherein the number of pulses is increased with respect to the number of pulses in said first acoustic signal.

公开(公告)号：EP3172590A1

公开(公告)日：2017-05-31

申请号：EP15762717.5

申请日：2015-07-17

Applicant: STMicroelectronics S.r.l.

Inventor： D'ANGELO, Francesco ,  CORONA, Stefano

IPC: G01S15/93 ,  G01S15/02 ,  G01S15/10 ,  G01S7/523 ,  G01S7/521

Abstract: A device for detecting obstacles that is wearable by a subject, for example integrated in an item of footwear. The device includes an ultrasound source for emitting an ultrasound transmission signal and an ultrasound receiver for receiving a corresponding ultrasound signal reflected by an obstacle, a control module for measuring a time of flight between emission of the ultrasound transmission signal and reception of the corresponding ultrasound signal reflected by the obstacle and calculating, on the basis of the aforesaid time of flight, the distance at which the obstacle is located. The device comprises an inertial sensor, in particular an acceleration sensor, designed to measure acceleration of the foot along three axes, and a control module configured for enabling operation of the ultrasound source if the aforesaid acceleration values measured by the inertial sensor respect a given condition for enabling measurement of the time of flight.

Abstract translation: 一种用于检测对象可穿戴的障碍物的装置，例如集成在鞋类物品中。 该装置包括用于发射超声传输信号的超声源和用于接收由障碍物反射的相应超声信号的超声接收器，用于测量超声传输信号的发射和接收相应的超声信号之间的飞行时间的控制模块 由障碍物反射并基于上述飞行时间计算障碍物所处的距离。 该装置包括被设计成沿三个轴测量脚的加速度的惯性传感器，特别是加速度传感器，以及被配置用于如果由惯性传感器测量的上述加速度值关于给定条件的情况下能够操作超声源的控制模块 用于测量飞行时间。