1213 results about "Blind persons" patented technology

A computer-aided communication and navigation system that uses a computer or other processor in wireless communication with Radio Frequency Identification (RFID) tags to aid a blind person. A communication module worn by the user receives information from one or more RFID tags readers and provides audio and, optionally, stimulatory information to the blind person. In one embodiment, a tag reader is provided in a walking cane. In one embodiment, tag readers are provided in one or more ankle bracelets or shoes. In one embodiment, a wireless (or wired) earpiece is provided to provide audio information to one or both ears. In one embodiment, audio information is provided through one or more transducers that couple sound through bones. The use of bone coupling allows the blind person to hear the sound information from the communication module in concert with normal hearing. The tag readers provided to the ankles or shoes communicate with the communication module to allow the blind user to navigate by following a “trail” of RFID tags.

A camera-based object detection system for a severely visually impaired or blind person consisting a digital camera mounted on the person's eyeglass or head that takes images on demand. Near-real time image processing algorithms decipher certain attributes of the captured image by processing it for edge pattern detection within a central region of the image. The results are classified by artificial neural networks trained on a list of known objects, in a look up table, or by a threshold. Once the pattern is classified a descriptive sentence is constructed of the object and its certain attributes and a computer-based voice synthesizer is used to verbally announce the descriptive sentence. The invention is used to determine the size of an object, or its distance from another object, and can be used in conjunction with an IR-sensitive camera to provide “sight” in poor visibility conditions, or at night.

A measuring system according to the present invention includes a biosensor 29, a measuring device 54 for assaying a specified component in a biological sample applied to the sensor 29, optional indicating equipment 56 which can be removed from the measuring device 54 and announces a measurement result by the measuring device 54 or the like by voice, and a guide 50 for guiding a target to be measured to the sensor 29. According to this measuring system, it is possible to remove the difficulty of performing locating operations when a blind person or a person having weak eyesight attaches / detached the sensor 29 to / from a connector 13 of the measuring device 54 or applies body fluid such as blood to the end of the sensor 29.

An apparatus and method for aiding a visually impaired or blind person to detect, identify and avoid objects in the field of vision of the surroundings. The apparatus includes electro-optical devices to detect and identify objects, a control unit, which receives and processes information from the devices and a vocal representation unit to receive instructions from the control unit for purpose of audibly describing the objects to the person in the field of vision, thereby enabling the person to cope and proceed safely in the surroundings. The method for aiding a visually impaired person to detect, identify and objects in the field of vision surroundings includes the steps of receiving visual images of the objects, receiving range information concerning the objects, processing the image information, and audibly describing to the person the objects in the field of vision, thereby enabling the person to cope with, and proceed in his surroundings.

The invention concerns a device enabling able-bodied or handicapped persons to learn to practise roller skating, skateboarding, ice skating, skiing on snow or artificial track. The invention is characterized in that it comprises supports consisting of posts supporting the cross members beneath which are maintained rails whereon can move freely rolling wheeled carriages whereto are attached the straps secured to the harnesses, obstacles arranged or provided beneath the rails, seats provided each with two hollow pockets with inclined base enabling the persons to put on their skates and fix their strap to the harness, signalling strips arranged on the floor serving to guide visually impaired or blind persons, a device including a sensor triggering a sound signal whereof the tone is different depending on the type of the obstacle, carriages with inclined side panels retaining the straps secured to the fastening points of the harnesses.

The invention provides a voice-helping intelligent glasses system aiming at the totally-blind visual handicapped. The voice-helping intelligent glasses system comprises a spectacle frame, a high-definition camera acquisition device, sensors used for detecting the external environment, and a data processing center. The voice-helping intelligent glasses system can acquire an actual scene in real time and send the actual scene to a server-side, the server-side carries out real-time processing and modeling to the actual scene by means of an image processing algorithm. the surrounding environment of the blind person can be identified, voice indication is sent to the blind person through a Bluetooth bone-conduction earphone, and vibrations of different strengths can be given to the blind person according to the distances of barriers. By means of a machine learning algorithm, the system automatically learn, and objects are stored in a database. At the same time, the voice-helping intelligent glasses system can identify and acquire characters on books and newspapers, and can convert the characters into voices, and the characters can be read to the blind person through the earphone, and the voice-helping intelligent glasses system can help the blind person read without difficulty. The voice-helping intelligent glasses system can be connected with the Internet through WiFi, and the blind person can surf the Internet in a voice manner, and can be connected with a mobile phone through Bluetooth. The voice-helping intelligent glasses system aiming at the totally-blind visual handicapped is small in size, and is portable and practical, and can be well accepted by blind people.

A blind aid device including enabling a blind person to activate the blind aid device; capturing one or more images related to a blind person's surrounding environment; detecting moving objects from the one or more images captured; identifying a finite number of spatial relationships related to the moving objects; analyzing the one or more images within the blind aid device to classify the finite number of spatial relationships related to the moving objects corresponding to predefined moving object data; converting select spatial relationship information related to the one or more analyzed images into audible information; relaying select audible information to the blind person; and notifying the blind person of one or more occurrences predetermined by the blind person as actionable occurrences.

The invention discloses an intelligent mobile phone blind-guiding device, comprising a mobile phone camera module, an embedded mobile phone processor, a software module, a mobile phone wireless signal emitting and receiving module, an input and output interactive module and a back ground server, wherein the mobile phone camera module comprises a mobile phone pick-up lens and an image sensor; the embedded mobile phone processor and the software module comprise an embedded processor and an embedded operating system of a mobile phone as well as application software running on the embedded operating system; and the application software is blind-guiding software. Feature analysis is carried out on collected images through a machine vision technology, and the features of field images are matched with obstacle parameters in a background database by using an artificial intelligence technology, thereby achieving recognition and position interpretation of barriers and using voice and vibratory modes to prompt a blind person to move. The blind-guiding device of the invention is in common use and is low in cost, and has functional expansibility and upgrading capabilities.

The invention discloses an electromagnetic push-pull Braille touch screen which comprises contacts with the number being the multiple of 6. Each six contacts are arranged in three rows and two lines so as to form a Braille unit; all the Braille units are assembled to compose the Braille touch screen; each contact comprises a base frame, a return spring, a coil, a permanent magnet, an iron core and a coil lead; one end of the return spring is connected to the bottom of the permanent magnet, and the other end of the return spring is fixed on the base frame; the coil and the iron core compose an electromagnet which is fixed at the bottom of the base frame; the coil lead is connected with an external control circuit for supplying power for the coil; and the top of the permanent magnet is hemispherical. The touch screen utilizes the electricity-to-magnetism principle, the Ampere's rule and the phenomenon that magnets with the same poles reprehend each other, and realizes the rising and reset of the contact through the thrust and pull generated by the permanent magnet and the electromagnet. The touch screen is in line with the formation rule of Braille and the using habits of blind persons, is simple in structure principle and easy to realize, and can realize the fast generating and updating of the Braille through being externally controlled by a common chip.

The invention provides keys of a mobile telephone for the blind, mainly comprising a key part and a circuit part, wherein the keys of the mobile telephone are made from thinner plastics, the circuit part below the keys is connected with an infrared induction device, and the infrared induction device is connected with an acoustic control system. When a blind person touches the keys by fingers, the infrared induction device can induct the fingers and is connected with the acoustic control system, and the blind person operates the mobile telephone by the reported corresponding functions of the keys. The invention has the obvious effect that two modes of infrared induction and acoustic control are utilized to help the blind person to better use the mobile telephone, the corresponding functions of positions inducted by infrared can be reported in a sound form, the blind person also can distinguish the functions by the sound even if the blind person can not see the mobile telephone, and the invention can help the blind person to better operate the mobile telephone.

The present invention is directed to a user system, a method for use in a user system, and a computer program for accessing information related to a physical document. The method comprises the steps of: identifying a physical document; identifying and locating an electronic copy of said identified document; identifying one or a plurality of pages of said physical document and identifying a part of the identified physical document using the position of points pressed on a touch foil successively placed and aligned over or under said identified pages; retrieving from the electronic copy of the physical document, data related to the selected part of the document; presenting said retrieved data visually or orally on the user workstation.

The invention provides wearable ultrasonic guiding equipment. The wearable ultrasonic guiding equipment comprises a plurality of ultrasonic wave receiving and transmitting units, a plurality of mounting brackets, a walking parameter detection module, a road condition analyzing and automatic alarm parameter regulating module, an alarm module and a power supply module, wherein the plurality of ultrasonic wave receiving and transmitting units are used for transmitting ultrasonic waves and receiving ultrasonic echo waves reflected by a barrier; the plurality of mounting brackets are used for mounting the ultrasonic wave receiving and transmitting units and worn on corresponding body parts of a blind user; the walking parameter detection module is used for acquiring walking parameters of the blind user; the road condition analyzing and automatic alarm parameter regulating module is used for judging the existence of the barrier in the front and the change of ground flatness and acquiring barrier meeting time when the blind user is walking at a current speed through the walking parameters; the alarm module is used for sending barrier existence information and corresponding alarm information to the blind user; and the power supply module is used for supplying power to each module. The device can liberate two hands of a blind person when the blind person is walking, can fully detect the barriers in front of the body of the blind person and the ground and makes an early alarm by using an audio signal which represents the time when the blinder user meets the barrier when the blinder user is walking at the current speed, so that the walking safety of the blinder person is ensured.

The invention discloses a mobile phone, which comprises an infrared module and further comprises a blind guiding module. The blind guiding module comprises a storage unit, a calculating module, a prompting module and a judging module, wherein the storage unit is used for storing an early-warning distance and an allowable deviation; the calculating module is used for calculating a horizontal distance between a reflection point of an infrared ray emitted from the infrared module and the mobile phone; the prompting module is used for giving a speech prompt; and the judging module is used for judging whether the horizontal distance exceeds the range of the allowable deviation of the early-warning distance or not and calling the prompting module to prompt a user that an obstruct is in front when the horizontal distance exceeds the range. The invention further discloses a blind guiding method achieved by utilizing the mobile phone. By using the mobile phone and the blind guiding method, the trip of blind persons can be greatly convenient and quick; the trip safety is improved; and the use cost is decreased, so as to greatly improve the life quality of the blind persons.

A blind aid device including enabling a blind person to activate the blind aid device; capturing one or more images related to a blind person's surrounding environment; detecting moving objects from the one or more images captured; identifying a finite number of spatial relationships related to the moving objects; analyzing the one or more images within the blind aid device to classify the finite number of spatial relationships related to the moving objects corresponding to predefined moving object data; converting select spatial relationship information related to the one or more analyzed images into audible information; relaying select audible information to the blind person; and notifying the blind person of one or more occurrences predetermined by the blind person as actionable occurrences.

The invention relates to a pair of intelligent guiding glasses for blind person and belongs to the electronic information field. The invention consists of a needle-camera tube or CCD, a range sensor, a pair of glasses, an earphone, an information processing system, a imaging processing system, an A / D converter, a speech module, a GPS receiving module, a wireless emitting module, a battery and a data wire; wherein, the needle-camera tube or the CCD is arranged in the interior side of two glass legs and are connected with the information processing system through a sensor; the information processing system consists of a DSP image processing module, a wireless receiving module, a GPS receiving module and a speech output module. The intelligent guiding glasses has the advantages of little volume, light weight, reasonable and smart arrangement position of the needle-camera tube or CCD and the range sensor, high efficiency, little electricity consumption, convenient use and strong practicability.

An intelligent guide robot comprises a vehicle body, driving wheels, a radar module, a camera module and a guide connecting rod, and an intelligent guide robot control unit is arranged in the vehicle body. According to a guide method of the intelligent guide robot, mapping of unknown environments are performed in a visual ORB-SLAM (oriented fast and rotated brief-simultaneous localization and mapping) manner, map information of unknown scenes is described by the aid of three-dimensional point cloud information, the point cloud information is richer, so that the guide robot is accurately positioned in the unknown environments, targets such as outdoor traffic signal lamps and pedestrians can be more accurately identified and positioned, traveling safety of blind persons can be further improved, and the intelligent guide robot is simple in structure, convenient, practical and high in practicability.

A computer-aided communication and navigation system that uses a computer or other processor in wireless communication with Radio Frequency Identification (RFID) tags to aid a blind person. A communication module worn by the user receives information from one or more RFID tags readers and provides audio and, optionally, stimulatory information to the blind person. In one embodiment, a tag reader is provided in a walking cane. In one embodiment, tag readers are provided in one or more ankle bracelets or shoes. In one embodiment, a wireless (or wired) earpiece is provided to provide audio information to one or both ears. In one embodiment, audio information is provided through one or more transducers that couple sound through bones. The use of bone coupling allows the blind person to hear the sound information from the communication module in concert with normal hearing. The tag readers provided to the ankles or shoes communicate with the communication module to allow the blind user to navigate by following a ''trail'' of RFID tags.

The invention belongs to the technical field of intelligent household electrical appliances and particularly relates to a control method and a control device for a water dispenser, the water dispenserand a computer readable storage medium. The method comprises the following steps: detecting whether a water container is placed on a tray of the water dispenser; if yes, detecting the container height of the water container; detecting the water level height in the water container; calculating the difference value between the container height and the water level height; if the difference value islarger than a first threshold, controlling the water dispenser to inject water into the water container, returning to carry out the step of detecting the water level height in the water container andsubsequent steps until the difference value is small than or equal to the first threshold; and if the difference value is small than or equal to the first threshold, controlling the water dispenser tostop the injection of water into the water container. A user does not need to execute any additional operation in the whole process, so that the convenience degree of a blind person during the use ofthe water dispenser is greatly increased.

The invention provides a smartphone based mobile guidance system for a blind person. The mobile guidance system comprises a basic navigation system, a comprehensive image processing system and a voice auxiliary system. The basic navigation system acquires real-time GPS (global positioning system) signals and processes the signals through built-in navigation software of a smartphone to obtain positioning data, and the system makes a plan of an advancing route after the blind person inputs destination information by voice input. The comprehensive image processing system comprises a blind sidewalk recognition module and a traffic intersection identification module, the blind sidewalk recognition module acquires blind sidewalk information in real time by the aid of a camera of the smartphone and processes the information to realize positioning of a blind sidewalk area, and the traffic intersection identification module acquires traffic intersection information by the aid of the smartphone and realizes intersection information identification by positioning of a zebra crossing when the blind person approaches an intersection. The voice auxiliary system converts processing results of each system into corresponding prompt voices which are fed back to the blind person to guide the blind person to move forward.

The present invention concerns an orientation, navigation and information system, especially adapted for blind or visually impaired people. It is essentially a system that allows blind or visually impaired people to access information usually made available only to public transportation users visually, through posters or informative signs, or through dynamic information screens of various nature. It allows, first of all, the access to information from the outside or within private or public facilities or locations, using a conventional mobile phone (2) equipped with one or more additional communication channels, or a wireless communicator, and in second place, it allows also, simultaneously, the orientation and navigation of the system user(s), through places of interest (20), according to their instructions, using a discreet and non-obstructive system of acoustic emitters (3, 17), and using also a cell system or radio communication network (6) like Bluetooth and / or Wi-Fi and / or others, inserted in and related with the places of interest of the user (1). This allows the user to know his (her) accurate localization and can guide his (her) route. The present orientation, navigation and information system can also be used by people without visual impairment, by adapting the system, for example, to display orientation instructions visually.

The invention relates to a traffic guiding system for assisting blind person to pass the intersection, as the prior sound hint system has bad guiding effect. The invention comprises a positioning device, a guide line, an electronic cane and a traffic light controller. Wherein the positioning device is arranged embedded to the ground adjacent to the outlet of the typhlosolis corresponding to the intersection. The guide line is arranged at the road between two positioning devices corresponding to the two sides of the road. The electronic cane and the positioning device establish optical communication with the opposite infrared light transmitting circuit and infrared light detection circuit through respective infrared light detection circuit and the infrared light transmitting circuit. The wireless communication circuit of the traffic light controller is connected with the wireless communication circuit signal of the electronic cane. The invention has simple technology and can obtain the position and direction of advance of blind persons, which is convenient for the traffic light controller to provide relative information and guarantee the safety of blind persons to the maximum.

The invention is a system whereby a video image can be converted into an audio signal. A portable apparatus is described which allows a visually blind person to hear the images and thus ‘see’. This does not require expensive equipment nor does it require surgery. It has applications for non-blind people such as with a pilot seeing radar information. It can be performed with an inexpensive video camera, a portable computer, and earphones. It is also readily adapted to a customized and compact system involving a micro camera, specialized computer, and ear buds.

The invention relates to a system suitable for a blind person to surf the Internet, comprising an automatic server news downloading system and a client application system. A server system can realize real-time news downloading, store the news into a server and realizes real-time updating; and a client system can correspondingly respond to voice input of the blind person by virtue of voice recognition and synthesis and outputs a voice. For special case of the blind person, the system realizes three core functions of the Internet, namely information acquisition, knowledge learning and interaction. By applying the system provided by the invention, the blind person can effectively listen to news by virtue of the Internet, listen to an electronic books, inquire encyclopedia nouns and report and listen to a post, wherein the news listening system can support the blind person to sequentially listen to news in programs, and the blind person can pay close attention to interested news by keyword search and related news search.

The invention relates to a pair of smart glasses for guiding a blind person and a guiding method of the smart glasses for guiding the blind person. The pair of smart glasses for guiding the blind person comprises a glasses body, a central processing module, a camera shooting module, a distance measuring module, a voice module, a brain electricity collecting module and a communication module. The camera shooting module is used for shooting the images of the periphery of a user. The distance measuring module is used for measuring the distance between an obstacle in front of the user and the user. The central processing module is used for controlling the voice module to send voice prompt messages when it is judged out that the user is in danger according to the images and the distance. The brain electricity collecting module is used for collecting brain electricity information of the user. The communication module sends a rescue signal to a rescue number stored in the smart glasses in advance. The camera shooting module is further used for shooting the panoramic pictures of the site where the user is located. The communication module sends the panoramic pictures to the rescue number. The pair of smart glasses for guiding the blind person helps the user achieve the purpose of calling for help and provides the image information of the periphery of the user, the position of the user is conveniently and rapidly located, and operation is convenient and safe.

An electronic device is described that assists blind and / or low vision users in magnifying and reading printed text, fast book scanning and printing magnified images of said text. The device can also produce audio output that allows listening to the text being pronounced.

The invention discloses a blind person walking positioning method based on computer binocular vision and inertial measurement. On one hand, a binocular camera worn on the head of a blind person is used for acquiring a scene image, a marker with longitude and latitude already known in the scene is searched in an image feature matching method, and a computer binocular stereo vision method is adopted to calculate three-dimensional coordinates of the marker in a camera coordinate system; on the other hand, a combined inertial device fixed on the camera is used for measuring the attitude angle of the camera, and a conversion matrix for the camera coordinate system in relative to a geographic coordinate system for the position where the blind person is is calculated; and the conversion matrix is used for converting the camera coordinate system for the marker into the geographic coordinate system for the position where the blind person is, and the longitude and the latitude of the marker are further used for calculating the longitude and the latitude of the position where the blind person walks. The method of the invention integrates the computer binocular vision algorithm and the inertial measurement technology, positioning of a blind person walking position is realized, the positioning is simple and easy to operate, the accuracy is high, and the method of the invention is particularly suitable for positioning for blind person walking guiding.

The invention discloses novel wearable blind guiding equipment and a working method thereof. The novel wearable blind guiding equipment is combined with tactile sticks for use and is used for assisting the blind to go out safely. The blind guiding equipment can automatically monitor the using environment, prompt users to switch working modes and provide corresponding guiding messages. The system closes a redundancy function module according to the working modes automatically, energy consumption is lowered, and the working time of the equipment is prolonged. Contact combinations are used for expressing complex blind guiding signals, and thus the privacy is better. The novel wearable blind guiding equipment includes but is not limited to a CPU, an input module, a speech recognition module, an image processing module, an output module, a communication module, a power module and a function device integration carrier. The working modes of the blind guiding equipment include but are not limited to the sidewalk mode, the traffic light intersection mode and the free mode. The sidewalk mode guides the blind to evade front obstacles in a ranging manner, the traffic light intersection mode acquires traffic light information in an image processing manner and guides the blind to achieve safety passage, and the free mode judges the condition of the surrounding environment by comprehensively utilizing the ranging information and the image processing information and guides the blind to move forward safely.

The present invention relates to a system and method for guiding the walking directions of a blind person using RFID blocks and, more particularly, to a system and method for guiding the walking directions of a blind person using RFID blocks, wherein an RFID reader wirelessly senses RF tags embedded in the blocks so as to guide walking directions by means of vibrations, buzzer sounds, and voice messages for guiding entry / exit directions, according to the types of pedestrian zones when a blind person walks along the blocks. The guiding system comprises: RFID tags for guiding the walking of a blind person; a plurality of blocks embedded in sidewalks which are divided into a junction zone block, a junction neighboring zone block and a general pedestrian zone block; a walking cane for receiving pedestrian zone information from the RFID tags in the plurality of blocks and outputting vibrations, sound effects and voice messages for guiding walking directions. The walking cane comprises: an antenna for receiving the pedestrian zone information by means of the RFID tags and a wireless transceiver; and a control part for generating vibrations when the blind person passes a general pedestrian zone block, generating vibrations and buzzer sounds when the blind person passes a junction neighboring zone, outputting vibrations and a voice guiding message for indicating a junction zone block when the blind person passes, and outputting vibrations and a voice guiding message for entry / exit directions when the blind person passes the junction neighboring zone block via the junction zone block.

The invention provides a device for prompting blind persons to avoid obstacles. The device comprises a depth sensor, an image sensor, a sound collector, an obstacle detection component and an interaction feedback component. Whether the obstacles are available on roads at the fronts of the blind persons or the blind persons can pass the roads can be detected by the obstacle detection component according to information which is acquired by the various sensors, and control signals can be transmitted to the interaction feedback component according to detection results. The device has the advantages that the information of the various sensors is fused, and accordingly the obstacle detection robustness and identification precision can be improved.