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WO2019037875A1 - Appareil mobile comprenant un capteur - Google Patents

Appareil mobile comprenant un capteur Download PDF

Info

Publication number
WO2019037875A1
WO2019037875A1 PCT/EP2017/071452 EP2017071452W WO2019037875A1 WO 2019037875 A1 WO2019037875 A1 WO 2019037875A1 EP 2017071452 W EP2017071452 W EP 2017071452W WO 2019037875 A1 WO2019037875 A1 WO 2019037875A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile device
sensor
bending sensor
designed
expansion
Prior art date
Application number
PCT/EP2017/071452
Other languages
German (de)
English (en)
Inventor
Raino Petricevic
Clemens Launer
Original Assignee
iNDTact GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by iNDTact GmbH filed Critical iNDTact GmbH
Priority to KR1020207008160A priority Critical patent/KR20200044858A/ko
Priority to CN201780094233.4A priority patent/CN111108413A/zh
Priority to JP2020511203A priority patent/JP6908777B2/ja
Priority to DE112017007977.2T priority patent/DE112017007977A5/de
Priority to PCT/EP2017/071452 priority patent/WO2019037875A1/fr
Publication of WO2019037875A1 publication Critical patent/WO2019037875A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/01—Measuring or predicting earthquakes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements

Definitions

  • the invention relates to a mobile device with a sensor received in a housing.
  • Mobile devices such as smartphones, tablet computers, notebooks and the like today include sensor units such as microelectromechanical systems (MEMS), which are required for different applications. Examples include capturing the location of the mobile device and detecting movements that a user makes. It has already been proposed to make the sensors already present in a mobile device, in particular acceleration sensors, usable for seismic monitoring.
  • acceleration sensors usable for seismic monitoring.
  • WO 2017/083556 A1 an early warning system for detecting earthquakes is proposed in which mobile phones are used.
  • acceleration data are detected by means of an acceleration sensor which is integrated in the mobile telephone. These acceleration data are compared with empirical values in order then to decide whether an acquired acceleration is an earthquake result.
  • a communication link is established with a server.
  • the server can communicate with a variety of such mobile phones and performs a plausibility check to estimate whether an actual earthquake is taking place. In this case, an earthquake warning is issued to mobile phones in the vicinity of the earthquake result so that the receivers can move to safety.
  • the invention is therefore based on the object to provide a mobile phone that is able to detect weak seismic activity.
  • the senor is designed as a strain and / or bending sensor and forms an acceleration sensor for detecting structure-borne sound waves and / or accelerations together with a seismic mass, wherein at least a portion of Mass of the mobile device forms the seismic mass.
  • the invention is based on the recognition that the sensitivity to accelerations, in particular to seismic shocks, can be substantially increased by a special arrangement of the expansion and / or bending sensor in the housing of the mobile device.
  • This effect is achieved in that the expansion and / or bending sensor cooperates with a seismic mass, which is excited to vibrate under the influence of accelerations.
  • These vibrations can be detected by means of the expansion and / or bending sensor.
  • accelerations acting on the seismic mass can be significantly increased, so that even the smallest accelerations that occur in the early stages of an emerging earthquake, can be detected.
  • the expansion and / or bending sensor is attached to an elastically mounted portion of the seismic mass.
  • the expansion and / or bending sensor is a piezoelectric sensor.
  • Such sensors are characterized by high accuracy, compact dimensions and cost-effective production. Accordingly, such a piezoelectric sensor can be relatively easily integrated into a mobile device.
  • the expansion and / or bending sensor proposed in the publication DE 10 2012 222 239 A1 which originates from the Applicant, can be used. The entire content of DE 10 2012 222 239 A1 is incorporated by reference in the present application.
  • the expansion and / or bending sensor is at least indirectly designed to measure minimum accelerations of less than 1 mg, preferably less than 100 g.
  • the expansion and / or bending sensor provides strain and / or bending measurements, from which accelerations can be derived and calculated.
  • acceleration sensors of conventional mobile devices are designed to detect larger accelerations, typically between 10 mg and 100 mg.
  • the sensitivity of the mobile device according to the invention The set elongation and / or bending sensor is thus one or more orders of magnitude above the sensitivity of conventional acceleration sensors, which are integrated in mobile devices.
  • the acceleration sensor is arranged on or on a component of the mobile device designed as a plate or bar.
  • the component formed as a plate or bar acts as a seismic mass which can be set into vibration by accelerations.
  • a plate can be stored at several points (bearings) or linear.
  • a beam can be mounted on one side or on two sides.
  • the housing has two, three, four or more than four bearing points for placement on a substrate. If the mobile device according to the invention is placed on a base, it can register the smallest vibrations, in particular in the form of structure-borne noise, as well as accelerations, in particular the smallest seismic movements. On a decoupled foundation or on a decoupled surface seismic waves (seismic waves) can be detected isolated from vibrations originating from other sources.
  • a bearing point is arranged in a corner region of the housing or in the region of an edge of the housing.
  • a plurality of bearings are arranged distributed on a surface, in particular on the underside of the housing.
  • a storage location of the mobile device according to the invention may be punctiform, linear, arcuate or planar.
  • a bearing point is on the underside of the housing.
  • the expansion and / or bending sensor is arranged at least in the vicinity of the center of the mobile device. Such an arrangement causes virtually the entire mass of the mobile device to act as a seismic mass.
  • the mobile device may have a control device which is designed to evaluate the vibrations detected by the expansion and / or bending sensor and to send a signal to an external device in the event of a detected event.
  • the control device is designed to determine by evaluating the oscillations whether an earthquake event is present.
  • the mobile device according to the invention can in particular be a smartphone, a tablet computer or a notebook.
  • the mobile device may be designed as an early warning system for detecting earthquakes or as part of such an early warning system.
  • Such an early warning system can consist of a multiplicity of such mobile devices which can establish a communication connection with a central server.
  • An alternative embodiment of the mobile device according to the invention provides that it is designed as a heart rate monitor.
  • the pulse i. H. the heartbeat
  • the mobile device according to the invention provides that it is designed as a monitoring device that is able to detect a fall of a person who is staying in a room.
  • the fall causes structure-borne noise, which can be detected by the mobile device.
  • the mobile device z. B. used for space monitoring or for monitoring senior citizens. If the mobile device detects a person falling, it can automatically trigger an alarm or call for help.
  • the mobile device according to the invention can also be used as a directional microphone for airborne sound. By means of the mobile device, the direction of a sound source from which an acoustic signal is received can be determined. As a result, for example, the quality of telephone calls in a noisy environment can be improved.
  • FIG. 1 a mobile device according to the invention in a perspective view
  • FIG. 2 a mobile device according to the invention in a perspective view
  • FIG. 2 is a side view of the mobile device of FIG. 1; FIG.
  • FIG. 3 shows a further embodiment of a mobile device according to the invention in a side view
  • FIG. 4 shows a further exemplary embodiment of a mobile device according to the invention in a side view
  • FIG. 5 shows a further embodiment of a mobile device according to the invention in a side view.
  • Fig. 1 is a perspective view showing a mobile device 1 with a housing 2 in which a strain and / or bending sensor 3 is accommodated. The arranged in the interior of the housing 2 expansion and / or bending sensor 3 is shown in phantom in Fig. 1.
  • Fig. 1 shows the mobile device 1 in an inverted position, ie with the top visible bottom 4. Located in the corners a total of four bearings 5, which are cylindrical and project from the bottom 4 of the housing 2.
  • the expansion and / or bending sensor 3 is embodied as a piezoelectric sensor and capable of detecting strains and / or accelerations. Based on these recorded measured values, accelerations of less than 100 g can be derived and determined.
  • the mobile device 1 is formed in this embodiment as a smartphone and part of an early warning system for detecting earthquakes.
  • the mobile device 1 When the mobile device 1 is placed with its bearings 5 on a pad, the strain and / or bending sensor 3 can be excited by seismic waves to vibrate.
  • the mass of the mobile device 1 acts as a seismic mass, so that external accelerations, in particular seismic waves, can be amplified and detected by the expansion and / or bending sensor 3 with high accuracy.
  • the mobile device 1 further comprises a control device 6 shown schematically in FIG. 1, which is connected to the expansion and / or bending sensor 3 and which evaluates the acceleration data detected by the expansion and / or bending sensor 3. Through the evaluation, it can be determined whether the detected vibrations and / or accelerations have been generated by an earthquake event or another cause.
  • Earthquake events are characterized by typical low-frequency accelerations, so that it can be determined by evaluating and classifying whether the cause of the accelerations is an earthquake or not.
  • FIG. 2 is a side view of FIG. 1.
  • the strain and / or bending sensor 3 is arranged in the interior of the mobile device 1.
  • the expansion and / or bending sensor 3 is arranged both from the bottom 4 and from the opposite top 12 spaced.
  • Fig. 3 shows a second embodiment of a mobile device 7.
  • the mobile device 7 is shown in a sectional view.
  • a circuit board 8 with electronic components (not shown).
  • a strain and / or bending sensor 3 is arranged on the board 8.
  • the board 8 is at least slightly elastically deformable.
  • the board 8 is mounted on the left and the right side of the mobile device 7 and thus can be deflected at least minimally vertically.
  • the expansion and / or bending sensor 3 is thus mounted bendable or stretchable and registers the smallest vibrations, as they typically occur in seismic events.
  • FIG. 4 is a view similar to FIG. 3 and shows a further embodiment of a mobile device 9.
  • the expansion and / or bending sensor 3 is located on a support designed as a cantilever 10.
  • the cantilever 10 carrying the expansion and / or bending sensor 3 is fastened to the right-hand side in FIG.
  • the left end of the cantilever 10 may be vibrated by shocks, accelerations or seismic waves detected by the expansion and / or bending sensor 3.
  • the mass of the mobile device 9 acts as a seismic mass and amplifies the accelerations acting on the mobile device 9.
  • Fig. 5 shows another embodiment of a mobile device 1 1 in a sectional view.
  • the expansion and / or bending sensor 3 is arranged in this embodiment in the interior of the housing 2 on the upper side 12 of the housing 2.
  • the plate-shaped upper side 12 is set in vibrations that can be detected by the expansion and / or bending sensor 3.
  • the mobile devices 1, 7, 9, 1 1 can also be used as a heart rate monitor. To do this, the user holds the mobile device to a body part or fixes it to it, where the pulse is clearly noticeable. For example, the arm or the neck is suitable for this purpose.
  • the pulse produced by the heartbeat triggers structure-borne noise, which can be detected and measured by the extension and / or bending sensor 3 of the mobile device.
  • An appropriate software application allows the readings to be viewed and stored on a display area of the mobile device.
  • the described mobile devices 1, 7, 9, 1 1 are also suitable for monitoring rooms. A mobile device can be used to monitor the room and trigger an alarm if a person who is in a room has fallen.
  • a falling person creates structure-borne noise, which is transmitted via the ground and other objects to the mobile device that is in the room.
  • the structure-borne sound waves produced during a fall are characteristic; the control device 6 can distinguish these from other sources, for example from seismic accelerations.
  • the mobile device triggers an alarm.
  • the mobile device 1, 7, 9, 1 1 can also be used as a directional microphone for airborne sound.
  • the expansion and / or bending sensor 3 is not only able to directly detect accelerations and / or structure-borne noise, but it can also indirectly detect airborne sound. In this way, z. B. the quality of phone calls in a noisy environment can be improved.

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Telephone Function (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)

Abstract

L'invention concerne un appareil mobile (1, 7, 9, 11) comprenant un capteur logé dans un boîtier (2), ce capteur se présentant sous la forme d'un capteur d'extension et/ou de flexion (3) et formant, conjointement avec une masse sismique, un capteur d'accélération pour détecter des ondes sonores solidiennes et/ou des accélérations, au moins une partie de la masse de l'appareil mobile (1, 7, 9, 11) formant la masse sismique.
PCT/EP2017/071452 2017-08-25 2017-08-25 Appareil mobile comprenant un capteur WO2019037875A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020207008160A KR20200044858A (ko) 2017-08-25 2017-08-25 센서를 갖는 모바일 장치
CN201780094233.4A CN111108413A (zh) 2017-08-25 2017-08-25 具有传感器的移动设备
JP2020511203A JP6908777B2 (ja) 2017-08-25 2017-08-25 センサを備えるモバイル装置
DE112017007977.2T DE112017007977A5 (de) 2017-08-25 2017-08-25 Mobilgerät mit einem sensor
PCT/EP2017/071452 WO2019037875A1 (fr) 2017-08-25 2017-08-25 Appareil mobile comprenant un capteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/071452 WO2019037875A1 (fr) 2017-08-25 2017-08-25 Appareil mobile comprenant un capteur

Publications (1)

Publication Number Publication Date
WO2019037875A1 true WO2019037875A1 (fr) 2019-02-28

Family

ID=59859031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/071452 WO2019037875A1 (fr) 2017-08-25 2017-08-25 Appareil mobile comprenant un capteur

Country Status (5)

Country Link
JP (1) JP6908777B2 (fr)
KR (1) KR20200044858A (fr)
CN (1) CN111108413A (fr)
DE (1) DE112017007977A5 (fr)
WO (1) WO2019037875A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111257924A (zh) * 2020-01-15 2020-06-09 长江大学 一种地震能吸取及地震预测装置

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US20140076051A1 (en) * 2012-09-14 2014-03-20 Qing Ma Accelerometer and method of making same
DE102012222239A1 (de) 2012-12-04 2014-06-05 iNDTact GmbH Messeinrichtung und Bauteil mit darin integrierter Messeinrichtung
US20150195693A1 (en) 2014-01-04 2015-07-09 Ramin Hooriani Earthquake early warning system utilizing a multitude of smart phones
WO2017083556A1 (fr) 2015-11-11 2017-05-18 The Regents Of The University Of California Myshake : système d'alerte sismique précoce fondé sur un téléphone intelligent

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WO2017083556A1 (fr) 2015-11-11 2017-05-18 The Regents Of The University Of California Myshake : système d'alerte sismique précoce fondé sur un téléphone intelligent

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
CN111108413A (zh) 2020-05-05
JP2020531832A (ja) 2020-11-05
DE112017007977A5 (de) 2020-06-04
JP6908777B2 (ja) 2021-07-28
KR20200044858A (ko) 2020-04-29

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