67 results about "Sense of direction" patented technology

An electronic device has an orientation sensing system for determining an orientation of the device. The system comprises a magnetometer and an accelero meter. The system further has calibration means to calibrate the sensing system for operational use. The accelerometer supplies measurements used to constrain a range of possible directions of the external magnetic field to be determined. The calibration means numerically solves a set of equations and is equally well useable for a 2D or 3D magnetometer in combination with a 2D or 3D accelerometer.

The present invention discloses a system that alerts the operator of a vehicle, when operator is not in compliance with an intersection signal condition, where the intersection traffic signal conditions does not permit driver of vehicles to cross the intersection. The system comprises of traffic light or stop sign RF transmitter or transceiver units, and plurality of vehicles equipped with vehicle collision avoidance device containing RF transceivers to receive signals from the intersection signal transmitter units, the vehicle collision avoidance device is equipped with vehicle speed comparator CPU and vehicle travel direction sensing circuitry using a compass or GPS receiver to determine vehicle travel direction and monitor vehicle speed. A beeper, LED or vibrator is incorporated for warning the driver.If a vehicle operator becomes none responsive to maintain vehicle speed in compliances with the traffic signal light condition, the vehicle collision avoidance device alerts the driver with audio visual and vibrating alarm signals for the driver to slow down the vehicle to stop. If within a determined time the driver does not comply, the vehicle collision avoidance device generates a secondary audio and visual signals to alert pedestrians, and transmits RF signals to other vehicles equipped with collision avoidance devise for the driver(s) located at that intersection take necessary measures to avoid an intersection collision.

Disclosed is a stereo vision measuring device based on a binocular omni-directional vision sensor. Each ODVS composing the binocular omni-directional vision sensor adopts the design of mean angle resolution. The parameters of two image collection cameras are in complete accord and in possession of a pretty good symmetry, and can quickly realize the point-to-point matching. The device adopts a unified spherical coordinate in the process of data collection, processing, description and representation of space objects in terms of centering on human in visual space, and adopts the elements of distance sense, direction sense and color sense to express features of each characteristic point, thereby simplifying the complication of calculus, omitting the calibration of the cameras, facilitating the feature extraction and realizing the stereo image matching easily, finally realizing the purpose of high-effective, real-time, and accurate stereo vision measurement. The device can be applied in a plurality of fields of industrial detection, object identification, robot automatic guidance, astronautics, aeronautics, military affairs, etc.

There are provided: a means (101a) for storing standard head related transfer functions for reference positions from a virtual listener; a means (101) for, when given information (DIR, DIST) about a virtual sound source position, forming head related transfer functions (hL(k), hR(k)) as left ear and right ear head related transfer functions by selecting one of the stored standard head related transfer functions or by selecting two or more of them and interpolating; means (102, 103) for imprinting a sense of direction and distance on the audio listening signal by using the head related transfer functions thus obtained; and means (104, 105) for correcting a distance related to the obtained head related transfer functions and the sense of distance to the virtual sound source position, in the audio listening signals (sL(n), sR(n)) given the sense of direction and distance or the source audio listening signal (s(n)). A highly precise sense of distance can be provided in a small structure.

Directional haptic feedback provided in a haptic feedback interface device. An interface device includes at least two actuator assemblies, which each include a moving inertial mass. A single control signal provided to the actuator assemblies at different magnitudes provides directional inertial sensations felt by the user. A greater magnitude waveform can be applied to one actuator to provide a sensation having a direction approximately corresponding to a position of that actuator in the housing. In another embodiment, the actuator assemblies each include a rotary inertial mass and the control signals have different duty cycles to provide directional sensations. For power-consumption efficiency, the control signals can be interlaced or pulsed at a different frequency and duty cycle to reduce average power requirements.

The present invention includes a system and a method by which the inclination of a machine element, such as a platform, may be sensed, and errors that might otherwise result from tangential and radial acceleration eliminated. The platform defines orthogonal X and Y axes, and a Z axis orthogonal to both the X and Y axes. The platform is rotatable about an axis extending parallel to the Z axis. The system includes an inclinometer, mounted on the platform at a location spaced from the axis of rotation by a distance r, for providing inclinometer outputs indicating acceleration in the X and Y directions, designated as Ix and Iy, respectively. A line from the axis of rotation to the inclinometer forms an included angle B with the X axis. A rate gyro is mounted on the platform. The rate gyro senses the rotational speed w of the platform about the axis of rotation and provides a rate gyro output indicating the rotational speed w. A circuit differentiates the rate gyro output to determine the angular acceleration of the platform dw / dt. A circuit multiplies the angular acceleration by the value r to determine the tangential acceleration of the platform at the point where the inclinometer is mounted r(dw / dt). A circuit resolves the tangential acceleration of the platform at the point where the inclinometer is mounted to determine the X axis component thereof, and resolves the tangential acceleration of the platform at the point where the inclinometer is mounted to determine the Y axis component thereof. A circuit subtracts the X axis component of the tangential acceleration of the platform at the point where the inclinometer is mounted from the acceleration Ix, sensed in a direction parallel to the X axis, and subtracts the Y axis component of the tangential acceleration of the platform at the point where the inclinometer is mounted from the acceleration Iy, sensed in a direction parallel to the Y axis. As a consequence, the inclinometer outputs Ix and Iy are corrected for errors that would otherwise result from tangential acceleration.

A method and system of intrusion detection, which includes displaying sensing device output data as one or more images of a field of view of a sensing device (14.1, 14.2, 14.3). Through interaction with a graphical user interface: a user input to define and display an image detection area in relation to the one or more images of the field of view is received, wherein the image detection area is correlated to a detection area to be monitored by the sensing device (14.1, 14.2, 14.3) for intrusion detection. One or more user inputs that define a detection vector in the image detection area are received, the detection vector specifying a predetermined minimum displacement and direction of displacement in the field of view to be monitored. A graphical representation of the detection vector may be displayed on the image detection area. The method further includes detecting a target object and tracking the target object at least partially through the detection area and determining whether the progressive displacement of the target object has a component which exceeds the minimum displacement in the direction of the detection vector.

The present invention discloses a system that alerts the operator of a vehicle, when operator is not in compliance with an intersection signal condition, where the intersection traffic signal conditions does not permit driver of vehicles to cross the intersection. The system comprises of traffic light or stop sign RF transmitter or transceiver units, and plurality of vehicles equipped with vehicle collision avoidance device containing RF transceivers to receive signals from the intersection signal transmitter units, the vehicle collision avoidance device is equipped with vehicle speed comparator CPU and vehicle travel direction sensing circuitry using a compass or GPS receiver to determine vehicle travel direction and monitor vehicle speed. A beeper, LED or vibrator is incorporated for warning the driver.

A camera image calibrating system applicable to a transportation vehicle including at least one image capturing unit, direction sensing units and a processing unit is provided. The image capturing unit is disposed on the transportation vehicle according to a height to preview an image. The direction sensing units are disposed on the transportation vehicle and the image capturing unit to obtain a vehicle directional angle and an image capturing directional angle. The processing unit calculates an image transformation relationship and causes the image to comply with an image preset condition. The processing unit determines an offset angle of the image capturing unit according to the image, the vehicle directional angle and the image capturing directional angle, and further calculates the image transformation relationship according to the height, the offset angle and the image, in a static calibration procedure. A method of calibrating camera images is also provided.

To provide a method for localizing sound image of reproducing sound outside right and left speakers, by processing and controlling audio signals which allows sound image localization outside the speakers for reproducing the controlled audio signals by means of a very concise hardware architecture. When the audio signals 1L, 1R of right and left channels recorded on fit media for stereophonic reproduction are reproduced, process to emphasize a factor of a sense of direction that listener's hearing has is applied by delaying phase characteristic of the audio signals 1L, 1R without change of frequency characteristics with increase in frequency to drive the speakers 7L , 7R of right and left channels.

The invention discloses a visual environment improvement design method of a big and long highway tunnel based on a rhythmical image. A lateral wall big rhythmical image curve and a lateral wall small rhythmical image curve are arranged at a lateral wall inside a tunnel. A road surface transverse visual illusion mark line and a road surface white broken line are arranged corresponding to the wave trough of the lateral wall big rhythmical image curve. The lateral wall is provided with a lateral wall vehicle distance indication mark line, thereby forming a spatial low-frequency visual information stream. A lateral wall annular mark line and two layers of outline marks are arranged in the tunnel; and three groups of road surface music note mark lines are corresponding to the lateral annular mark line; and a road surface protruded road sign is provided, thereby forming a spatial intermediate-frequency visual information stream. The lower edge of the kerbstone is provided with a red-and-white roadside vertical surface mark line, thereby forming a spatial high-frequency visual information stream. The rhythmical visual reference system consisting of the multiple frequencies of visual information effectively improves the sense of speed, the sense of distance, the sense of direction, and the sense of rhythm; and the method is applicable to the highway tunnel having a length more than 1000m, with the limit speed being 60-80km / h.

The invention discloses a watching angle indication method and device. The method comprises that when a panorama content is displayed in a screen, a 3D geometric model used for rendering the panorama content is displayed at the same time; in the panorama content displaying process, the real-time watching angle of a viewer is detected; and the detected real-time watching angle of the viewer is displayed in the 3D geometric model. Thus, a user can know the position of a presently watching frame in the panorama content in real time, the user can have a sense of direction when watching the panorama content and can adjust the watching direction conveniently, and the intended watching angle can be reached by adjustment.

A light beam is detected / localized by multisector detector—quad-cell, or 5+ sectors handling plural beams. Preferences: Beams focus to diffraction limit on the detector, which reveals origin direction by null-balance—shifting spots to a central sector junction, and measuring shifts to reach there. One or more MEMS reflectors, and control system with programmed processor(s), sequence the spot toward center: following a normal to an intersector boundary; then along the boundary. One afocal optic amplifies MEMS deflections; another sends beams to imaging optics. After it's known which sector received a spot, and the beam shifts, source direction is reported. The system can respond toward that (or a related) direction. It can illuminate objects, generating beams reflectively. Optics define an FOR in which to search; other optics define an FOV (narrower), for imaging spots onto the detector. The FOR:FOV angular ratio is on order of ten—roughly 180:20°, or 120:10°.

The invention provides a double-sound-channel 3D audio generation device and method. The device comprises left and right ear sound pressure simulation module, a distance variable function determination function, a far-field head-related transfer function extraction module, a near-field head-related transfer function recording module and a convolution module. Firstly, sound pressures, generated on a certain point of a hard sphere, of sound sources at different distances, the sound pressures of the sound sources at the different distances on the point are compared to obtain distance variable function values then, near-field head-related transfer functions are obtained according to the distance variable function values and existing far-field head-related transfer functions then, time frequency transformation is performed by utilizing the head-related transfer functions then to obtain head-related transfer impulse responses, convolution is performed on the head-related transfer impulse responses and an audio signal, and, finally, 3D audio is obtained. A 3D audio signal synthesized based on the near-field head-related transfer functions by utilizing the technical scheme of the invention has the good distance perception effect, the relative clear sense of direction and the less before and after confusion effect.

The embodiment of the invention provides a positioning method and device based on an electronic map. The method comprises the steps of obtaining a location point and a first direction in the electronic map at present; searching for one or a plurality of navigation objects in a preset range in the electronic map; establishing a coordinate system according to the first direction; calculating azimuth information of the one or plurality of navigation objects relative to the location point in the coordinate system. Since the coordinate system is established by taking a user himself as a reference, the most intuitive sense of direction is provided to the user, the simplicity and convenience of positioning operation are improved, the positioning is conducted through the azimuths of the navigation objects, one or a plurality of auxiliary objects is used as a reference and the positioning accuracy and success rate are greatly improved.

The invention discloses a walking device for disabled people, which carries out analysis and processing of road condition signals collected by a photoelectric sensor and an angle sensor of a brake unit and command signals collected by a sound-controlled sensor and a touch sensor by a processing control unit and controls a drive unit, then the walking device can carry out automatic forward movement, backward movement, turning, avoiding, parking, accelerating and decelerating according to the specified route, not only realizing the disabled people do not travel alone, but also ensuring the safety during the travelling process and avoiding the occurrence of lost. The global positioning of the walking device is carried out by using a positioning unit, the real-time specific location is provided, the preset route can also be designed, and the sense of direction and the safety are improved. The identity of an owner is identified by the card reading form, if the identify is not right, the walking device can not be started, and the alarm can be implemented. The walking device adopts a universal wheel, thus facilitating the control of the direction and improving the flexibility. The walking device additionally adopts an automatic ascending and descending vehicle seat, thus facilitating the riding of the disabled people.

The invention relates to a tooth mover for computer-assisting tooth orthodontics, which can most quickly and conveniently move and rotate teeth with strong moving precision and sense of direction. The invention comprises the following steps: 1) initializing a program; 2) initializing a tooth move; 3) reading in a tooth 3D model; 4) choosing a tooth needing to move, displaying by the tooth mover, and presenting the chosen tooth at the crossing point of the moving arrowhead on each direction of the tooth mover; 5) waiting the operation of a user; 6) changing the viewing angle of a tooth displaying window, while the tooth mover follows the changed the viewing angle; clicking the arrowhead on a translation direction or a rotation direction in the tooth mover by mouse, moving the chosen tooth in the tooth displaying window along the assigned direction, or rotating along the assigned rotary shaft and the assigned rotary direction; clicking the icon for changing the rotary shaft in the tooth mover, changing the color of the icon representing the rotary shaft into the color of corresponding rotary shaft, and assigning a new rotary shaft.

The invention discloses a multifunctional intelligent insole based on myoelectric collection and cloud platform analysis. The multifunctional intelligent insole comprises a navigation module, a foot type and gait correction module, a heat balancing module, a lithium battery module, a cloud platform and upper computer software. By collecting plantar pressure, plantar myoelectricity and other signals, the insole can monitor motion information of foot muscles and the toes in real time, and the plantar gait is corrected based on airbag design. Based on the electrothermal principle, even heat distribution of the sole is achieved by controlling the electrical stimulation strength and closing and opening of a ventilating opening, and ctivity is avoided. Based on Beidou navigation, vibration of aspecific portion of the intelligent insole is generated through electrical stimulation, and route navigation aiming at the deaf, the blind and people poor in sense of direction is achieved. The intelligent sole is connected with a cloud platform and a database, a big data deep mining algorithm, and a reasonable scheme is provided for efficient rehabilitation therapy of foot patients and athlete training. The insole has multiple functions, is simple and practical, can meet the needs of people in different fields, and convenient for practical popularization.

The application provides a method and equipment for multi-party conference based on a virtual panorama. The method includes: presetting a virtual position of each participating party in the virtual panorama and a virtual background of the virtual panorama, and obtaining a multi-channel video image of each participating party; respectively performing interpolation calculation on the multi-channel video images of other participating parties based on the virtual position of each participating party to obtain interpolation video images of the other participating parties corresponding to each participating party; performing image splicing and fusion on the interpolation video images of the other participating parties corresponding to each participating party and the virtual background to obtain a panoramic video image corresponding to each participating party; and sending the panoramic video image to a display device of the corresponding participating party for display. According to the method and equipment, the sense of space of each participating party is restored through interpolation calculation, the all-viewing-angle panoramic video images of the other participating parties are provided for each participating party, and the spatial sense of direction, the sense of participation, and the sense of immersion of each participating party in the multi-party conference can be increased.

Provided is a user instruction input device operating in a three-dimensional space. The user instruction input device includes a first sensor that senses the angular rate of the device centering on at least one axis, a second sensor that senses the acceleration of the device at least for one direction, and a processing unit that calculates a first rotation angle in a coordinate system independent of the attitude of the first device from the output value of the first sensor, calculates a second rotation angle in the coordinate system from the output value of the second sensor, and calculates the final attitude angle by combining the first rotation angle and the second rotation angle.

The invention is applicable to the field of medical equipment, and provides gantry-type lower limb training rehabilitation equipment. The equipment comprises a height adjusting device, a weight reducing device, a pelvis supporting device, an exoskeleton device, a running platform, a rack and a control system. According to the equipment, the height suitable for a patient is adjusted through the height adjusting device, the upper body of the patient is lifted by using the weight reducing device, then the crotch of the patient is fixed on the pelvis supporting device, and the two legs of the patient are fixed on two mechanical legs of the exoskeleton device. The pelvis supporting device is driven by a weight-reducing power source to move up and down so that the patient can move up and down; the pelvis supporting device can help the patient to move at four degrees of freedom by itself; meanwhile, the arbitrary movement of the patient at six degrees of freedom is achieved through the mechanical legs and the running platform, a pelvis support is always parallel to the front-rear direction of the running platform so that the patient can move in all directions and have a clear sense of direction, the equipment helps the patient to recover the functions of the lower limbs more quickly, and the gaits are normal.

A light beam is detected / localized by multisector detector—quad-cell, or 5+ sectors handling plural beams. Preferences: Beams focus to diffraction limit on the detector, which reveals origin direction by null-balance—shifting spots to a central sector junction, and measuring shifts to reach there. One or more MEMS reflectors, and control system with programmed processor(s), sequence the spot toward center: following a normal to an intersector boundary; then along the boundary. One afocal optic amplifies MEMS deflections; another sends beams to imaging optics. After it's known which sector received a spot, and the beam shifts, source direction is reported. The system can respond toward that (or a related) direction. It can illuminate objects, generating beams reflectively. Optics define an FOR in which to search; other optics define an FOV (narrower), for imaging spots onto the detector. The FOR:FOV angular ratio is on order of ten—roughly 180:20°, or 120:10°.

A wireless indicating apparatus solves the issues of operating freedom and the inconvenience of wireless input devices of the prior art. The present wireless indicating apparatus records the difference between a horizontal orientation, an operating cursor's position, and the difference between the vertical orientation and the operating cursor's position. Therefore, the user can use the wireless indicating apparatus freely. The wireless indicating apparatus comprises an operating unit, an orientation-sensing unit, a signal-processing unit, a wireless emitting unit and a power supply device. A computer system receives the operation signal via a wireless receiving device and controls the movement, clicking or selection of the cursor upon a screen. Therefore, the operation of the wireless indicating apparatus of the present invention is not limited to a flat surface. It increases the freedom of operation and convenience, and reduces injuries such as those caused by incorrect use of a mouse.

The invention provides a method for outputting audio signals and terminal equipment. The method is applied to the terminal equipment which is sequentially provided with a surrounding left speaker, a front left speaker, a middle speaker, a front right speaker and a surrounding right speaker, wherein the surrounding left speaker, the front left speaker, the middle speaker, the front right speaker and the surrounding right speaker are located on the same plane. The method comprises the following steps of: receiving the audio signals; respectively carrying out rear surrounding audio processing on surrounding left-channel audio signals and surrounding right-channel audio signals; and respectively outputting the processed surrounding left-channel audio signals and the processed surrounding right-channel audio signals to the surrounding left speaker and the surrounding right speaker. The sense of direction of the audio signals can be effectively improved, and the stereophonic effect is strengthened.

Disclosed is an LED white-light lighting module with an easily adjustable color temperature. The LED white-light lighting module includes a substrate, at least one red LED package, at least one green LED package, at least one blue LED package and a light tube. The red, green and blue LED packages are provided on the substrate. Each of the LED packages includes a plurality of scattering particles for providing preferred senses of direction of light so that red, green and blue light beams almost completely overlap to provide a white light beam. The light tube is transparent and contains the substrate.

There are provided: a means (101a) for storing standard head related transfer functions for reference positions from a virtual listener; a means (101) for, when given information (DIR, DIST) about a virtual sound source position, forming head related transfer functions (hL(k), hR(k)) as left ear and right ear head related transfer functions by selecting one of the stored standard head related transfer functions or by selecting two or more of them and interpolating; means (102, 103) for imprinting a sense of direction and distance on the audio listening signal by using the head related transfer functions thus obtained; and means (104, 105) for correcting a distance related to the obtained head related transfer functions and the sense of distance to the virtual sound source position, in the audio listening signals (sL(n), sR(n)) given the sense of direction and distance or the source audio listening signal (s(n)). A highly precise sense of distance can be provided in a small structure.

The invention relates to the technical field of information, and particularly relates to an augmented reality interaction system based on a dynamic triggering source. The augmented reality interaction system comprises a triggering area, a projector, a first mobile terminal and a plurality of second mobile terminals, wherein the triggering area is horizontally arranged on the ground; the projector is arranged above the triggering area and the projection camera of the projector faces to the triggering area; the projection area is positioned inside the triggering area; the first mobile terminal and the plurality of second mobile terminals surround the triggering area and are distributed in an annular manner; the first mobile terminal is connected with the projector; the plurality of second mobile terminals are respectively connected with the first mobile terminal. As the first mobile terminal and the plurality of second mobile terminals surround the triggering area and are distributed in the annular manner, and corresponding interaction information in different directions is acquired with the combination of direction information, each mobile terminal has a sense of direction, relatively rich reality attribute can be provided for a virtual object, and virtual object can be relatively real, and relatively good interaction can be achieved.

The invention relates to a method and system of navigation. The method comprises: obtaining the direction of the path which belongs to a current position of a navigation device recognized by an electronic map; calculating the path from a start point to a destination point and generating the path direction according to the information of the start point and destination point by the electronic map; calculating a deviation angle between the path direction and the reference direction selected by the electronic map; determining the real due south direction by a compass module of the navigation device; and generating the directional information at present position according to the deviation angle and the real due south direction. The method and system of navigation can fully use the path of the present electronic map and the calculating function of the path direction, determine the real due south direction by the compass module, effectively combine the electronic map and the function of the compass module to obtain the real direction, provide the rapid and accurate navigation service for the users, save time of finding the real direction repeatedly according to the electronic map by the users, and have great benefit for the users having poor direction-sense especially.

A binaural hearing aid system is provided comprising a first hearing aid and a second hearing aid, each of which comprises a microphone and an A / D converter for provision of a digital input signal in response to sound signals received at the respective microphone, a processor that is configured to process the digital input signal in accordance with a selected signal processing algorithm into a processed digital output signal, including a compressor for compensation of dynamic range hearing loss based on the signal level, a D / A converter and an output transducer for conversion of the processed sound signal to an acoustic output signal, a transceiver for data communication with the other hearing aid, and wherein the gain of the compressor of the first hearing aid is controlled by a signal with a value that is substantially identical to the value of the signal controlling the gain of the compressor of the second hearing aid, whereby sense of direction is maintained.