EP2641579A1 - Dispositif d'aide à l'orientation - Google Patents

Dispositif d'aide à l'orientation Download PDF

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Publication number
EP2641579A1
EP2641579A1 EP12160053.0A EP12160053A EP2641579A1 EP 2641579 A1 EP2641579 A1 EP 2641579A1 EP 12160053 A EP12160053 A EP 12160053A EP 2641579 A1 EP2641579 A1 EP 2641579A1
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EP
European Patent Office
Prior art keywords
sensor
orientation aid
environment
aid device
information
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12160053.0A
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German (de)
English (en)
Inventor
Aissa Zouhri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP12160053.0A priority Critical patent/EP2641579A1/fr
Publication of EP2641579A1 publication Critical patent/EP2641579A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/06—Walking aids for blind persons
    • A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/06—Walking aids for blind persons
    • A61H3/068—Sticks for blind persons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/04—Force
    • F04C2270/041—Controlled or regulated

Definitions

  • the invention relates to an orientation aid device for visually impaired people and to a method for operating such an orientation aid device.
  • the DE 20 2004 002 075 Ui discloses a blind bar with a handle portion and a sensor end.
  • the sensor end has a non-contact collision sensor, which is designed as an ultrasonic sensor, optical sensor or infrared sensor. It can also be provided several similar sensors.
  • Devices of the type mentioned are particularly suitable for replacing the conventional cane.
  • such devices can help a visually impaired person to detect the presence of objects in the environment and, if necessary, to determine a distance from the objects.
  • sensors are considered to be different from each other if they fundamentally differ from each other in the nature of the physico-chemical or chemical properties, effects or material properties to be detected in the environment.
  • Different sensors can be structurally combined to form a sensor unit.
  • a sensor can also be integrally connected to a transmitting device.
  • an ultrasonic sensor can also have a transmitter for ultrasonic waves, wherein the actual sensor will then resume the self-emitted and reflected by an object ultrasonic waves.
  • Environmental data are thereby detectable by sensors physical or chemical properties, effects or material properties that can not be detected by a user.
  • Environmental information provides understandable information about the environment to a user and may be of direct assistance to a visually impaired person in orientation.
  • the sensors used in the invention are in particular those which are not suitable for the production of pictorial representations due to the coarseness of the generated environmental data.
  • the housing may be rod-shaped and thus be imitated a blind stick. But there are also other forms of housing conceivable.
  • the handle is preferably designed such that the housing can be held by a user in a defined orientation.
  • environmental data of different types can be used to generate the environmental information. This allows you to create comprehensive environmental information that goes beyond information about the pure presence or haptic properties of objects.
  • information about the nature of the objects namely in particular the material properties and / or surface properties.
  • glass has similar reflectivity to ultrasonic waves as metallic surfaces; However, light is much less reflected by glass than by metallic surfaces.
  • metallic objects can be determined, the surface of which is non-metallic.
  • the sensor arrangement can have an image recording unit, which in particular can produce a photographic image of a part of the environment. This may be a still camera and / or a movie camera. Captured images can be compared to stored images to create environmental information about the location and type of the site or surrounding objects.
  • a front-side sound sensor and / or a light sensor and / or a metal detector are attached to an end of the housing facing away from the handle.
  • the frontal arrangement of preferably two or more different sensors not only the position, but also the type of objects are detected, which are located in the direction of movement in front of the user. In essence, front sensors can replace the stick tip of the conventional blind stick.
  • an upper sensor in particular a sound sensor and / or a light sensor, is mounted at an angle to one of the front sensors.
  • the upper sensor preferably has a sensor field which is swiveled upwards by about 45 ° relative to the front-side sensor.
  • the pivoting is in particular about an axis which is transverse to a running direction of the user.
  • the upper sensor is preferably similar to at least one of the front-side sensors.
  • the orientation aid device preferably has lateral sensors, namely at least one left sensor on the left side and one right sensor on the right side.
  • the left sensor is preferably provided for detecting objects on the left side of the user, while the right sensor is preferably provided for detecting objects on the right side of the user.
  • the left and the right sensors preferably have a fan-like detection area, which extends at approximately +/- 45 ° from the exact right or left.
  • the information processing unit is configured to generate linguistic environment information that can be acoustically output by the output unit.
  • the output unit Through the acoustic linguistic output of environmental information, the user can be provided with extensive information about the environment, which can be very detailed and easily understood by the user.
  • specific algorithms are provided, which are used for processing the environmental data in the environmental information.
  • the information processing unit is adapted to generate environmental information including information about both the nature and location of objects in the environment. Reference is made to described advantages.
  • the orientation aid device preferably has an acceleration sensor which is provided for determining acceleration data.
  • an acceleration sensor is understood to mean a device which can measure acceleration in one or more directions.
  • an inertial force acting on a test mass is preferably determined, so that it can be determined whether an increase or decrease in speed takes place.
  • the acceleration sensor may include a plurality of sub-sensors, each of which may receive accelerations in different directions or about different axes. Spatial motion patterns can therefore be created with an acceleration sensor.
  • the acceleration sensor can absorb accelerations of the housing, which are generated by a manual guiding of the housing by a user.
  • the acceleration data may be used to determine temporary spatial orientations of theys bamboovorraum be used.
  • the invention further relates to a method for operating an orientation aid device for visually impaired people, wherein the orientation aid device comprises: a housing for receiving or supporting components of the orientation aid device and a handle.
  • the method comprises the following method steps: determining environment data by means of a number of sensors or an image acquisition unit, generating environment information based on the environment data, outputting the environment information to a user.
  • the method according to the invention is characterized in that the environmental data are processed into environmental information that includes information about the nature and position of objects in the environment.
  • environmental data from the sensors are processed into environmental information that includes information about the material of an article in the environment.
  • environmental data of the sensors are processed to environmental information, the information about the surface condition, in particular about
  • Refraction and / or sound absorption properties of an object in the environment include. Such information may be useful for improved orientation of a visually impaired person.
  • environmental information is output verbally.
  • the environment data is processed into environment information in consideration of acceleration data, the acceleration data being determined by an acceleration sensor mounted on the housing.
  • the environment data is processed taking into account the time to environmental information.
  • the same advantages and further features that have already been described with regard to the orientation aid device arise with regard to the method according to the invention.
  • a body of water can be detected by an ultrasonic sensor and its depth can be determined.
  • the sesor is aligned diagonally forward / downwards and emits ultrasonic pulses.
  • a first part of the sound is reflected by the surface and is detected by the sensor.
  • a second part of the sound passes through the water surface and hits the bottom of the water. From there, the sound is in turn reflected and hits with a deviating to the first part of the sound frequency spectrum and after another term on the sensor. From the deviations conclusions can be drawn on the depth of the water.
  • a shallow depth can only be recognized as a harmless puddle; a great depth can be interpreted as a seriously increasing pond, brook or much larger body of water. Corresponding warnings can then be output.
  • the orientation aid device 1 comprises a rod-shaped housing 2, which at one end has a handle 3. At one end of the housing 2, which faces away from the handle 3, there are mounted front-side sensors 4 ', 4 "which can emit infrared rays as well as ultrasonic waves These rays or waves are reflected by an object and strike the front-side sensors 4 again.
  • Sesonr can be oriented either diagonally upwards or downwards, which can then be aligned with the ground in front of the person, for example, and can be used to detect waters and their depths.
  • a metal detector 9 is further mounted within the housing 2.
  • the metal detector 9 can generate a magnetic field and / or an electric field. As the metal detector 9 moves over a metallic object, the magnetic field or electric field for the metal detector is noticeably altered. As a result, conclusions can be drawn on metallic properties of the object.
  • FIG. 2 shows the schematic of the shaft assembly of the orientation aid device according to the invention 1.
  • the information processing unit 10 recognize that can receive data from the individual sensors 4, 8, 9, 13 and / or the camera 15.
  • a front-side ultrasonic sensor 4 ' is shown, which generates ultrasonic waves 6 and can receive reflected ultrasonic waves from the object 14.
  • a front side light sensor 4 ' is shown, which generates infrared rays 5 and can receive reflected infrared rays from the article 14.
  • the metal detector 9 generates an electromagnetic field which, depending on the nature of the object 14, can be altered by it, which can be detected by the metal detector.
  • the information processing unit 10 may obtain acceleration data of an acceleration sensor 12 fixedly connected to the housing 2. Will the Acceleration data of the acceleration sensor 12 set in correlation with the environmental data of the sensors 4, 8, 9, 13 and / or the camera 15, spatial information about the object 14 can be generated. Clock 16 provides time information that can be considered in the generation of environmental information.
  • the information processing unit 10 forwards the generated environment information to the output unit 11.
  • the output unit 11 includes a speaker that can acoustically transmit the environmental information to the user.
  • the output unit 11 may be arranged separately from the housing 2 and connected to the information processing unit 10 via a radio link.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
EP12160053.0A 2012-03-19 2012-03-19 Dispositif d'aide à l'orientation Withdrawn EP2641579A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12160053.0A EP2641579A1 (fr) 2012-03-19 2012-03-19 Dispositif d'aide à l'orientation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12160053.0A EP2641579A1 (fr) 2012-03-19 2012-03-19 Dispositif d'aide à l'orientation

Publications (1)

Publication Number Publication Date
EP2641579A1 true EP2641579A1 (fr) 2013-09-25

Family

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Family Applications (1)

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EP12160053.0A Withdrawn EP2641579A1 (fr) 2012-03-19 2012-03-19 Dispositif d'aide à l'orientation

Country Status (1)

Country Link
EP (1) EP2641579A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104039293A (zh) * 2011-09-30 2014-09-10 克勒格布尔印度理工学院 一种视障人士与盲人的电子助行器
CN105445735A (zh) * 2014-09-24 2016-03-30 恩智浦有限公司 个人雷达辅助
EP3109668A1 (fr) 2015-06-25 2016-12-28 Gosense Appareil à main pour un utilisateur déficient visuel
DE102017207782B4 (de) * 2017-05-09 2020-10-29 Helmut-Schmidt-Universität Universität der Bundeswehr Hamburg Erleichterung des Einstiegs in Fahrzeuge für Blinde und Sehbehinderte

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2766579A1 (fr) * 1997-07-28 1999-01-29 Toma Neagu Chiric Appareil pour la protection et l'orientation des non voyants et des mal-voyants
US20040145496A1 (en) * 1996-09-25 2004-07-29 Ellis Christ G. Intelligent vehicle apparatus and method for using the apparatus
DE202004002075U1 (de) 2004-02-11 2005-07-07 Karatsonyi, Christopher Von Blindenstab
US20060129308A1 (en) * 2004-12-10 2006-06-15 Lawrence Kates Management and navigation system for the blind
US20060289624A1 (en) * 2005-06-27 2006-12-28 Olmos Pete L Magnetically activated guiding device and method
US20090025765A1 (en) * 2007-07-24 2009-01-29 International Business Machines Corporation Apparatus and method for sensing of three-dimensional environmental information
US20090032590A1 (en) * 2007-08-02 2009-02-05 Hopkins Billy D Location, orientation, product and color identification apparatus, system and method for the blind or visually impaired
FR2930069A1 (fr) * 2008-04-14 2009-10-16 Jacques Belloteau Procede et dispositif de guidage individuel.
US20100007474A1 (en) * 2008-07-10 2010-01-14 International Business Machines Corporation Method and apparatus for tactile haptic device to guide user in real-time obstacle avoidance
US7706212B1 (en) * 2007-01-30 2010-04-27 Campbell Terry L Mobility director device and cane for the visually impaired

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040145496A1 (en) * 1996-09-25 2004-07-29 Ellis Christ G. Intelligent vehicle apparatus and method for using the apparatus
FR2766579A1 (fr) * 1997-07-28 1999-01-29 Toma Neagu Chiric Appareil pour la protection et l'orientation des non voyants et des mal-voyants
DE202004002075U1 (de) 2004-02-11 2005-07-07 Karatsonyi, Christopher Von Blindenstab
US20060129308A1 (en) * 2004-12-10 2006-06-15 Lawrence Kates Management and navigation system for the blind
US20060289624A1 (en) * 2005-06-27 2006-12-28 Olmos Pete L Magnetically activated guiding device and method
US7706212B1 (en) * 2007-01-30 2010-04-27 Campbell Terry L Mobility director device and cane for the visually impaired
US20090025765A1 (en) * 2007-07-24 2009-01-29 International Business Machines Corporation Apparatus and method for sensing of three-dimensional environmental information
US20090032590A1 (en) * 2007-08-02 2009-02-05 Hopkins Billy D Location, orientation, product and color identification apparatus, system and method for the blind or visually impaired
FR2930069A1 (fr) * 2008-04-14 2009-10-16 Jacques Belloteau Procede et dispositif de guidage individuel.
US20100007474A1 (en) * 2008-07-10 2010-01-14 International Business Machines Corporation Method and apparatus for tactile haptic device to guide user in real-time obstacle avoidance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104039293A (zh) * 2011-09-30 2014-09-10 克勒格布尔印度理工学院 一种视障人士与盲人的电子助行器
CN105445735A (zh) * 2014-09-24 2016-03-30 恩智浦有限公司 个人雷达辅助
EP3109668A1 (fr) 2015-06-25 2016-12-28 Gosense Appareil à main pour un utilisateur déficient visuel
FR3038066A1 (fr) * 2015-06-25 2016-12-30 De Chaumont Hugues Vauchaussade Appareil a main pour un utilisateur deficient visuel
DE102017207782B4 (de) * 2017-05-09 2020-10-29 Helmut-Schmidt-Universität Universität der Bundeswehr Hamburg Erleichterung des Einstiegs in Fahrzeuge für Blinde und Sehbehinderte

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