105 results about "Motion perception" patented technology

An electromagnetic type multi-degree of freedom virtual roaming platform comprises a moving platform, a platform tilt actuating mechanism, a platform tilt perception system, two mats, a foot motion perception system, a corresponding flotation structure, a pressure sensor and the like, wherein the moving platform is composed of an array magnetic-driven unit, and the two mats are suspended on the platform and allow a user to directly tread. By means of the virtual reality technology, forward road situations and surrounding panoramic environments are displayed in real time on a helmet displayer or specific glasses of the user, and the user can select and move forward according to the situation. A control system can precisely control the mats so that the mats can bear the feet of the user to equivalently finish walking, running and other motions in the range of the platform, corresponding virtual scenes are changed synchronously according to the specific forwarding situations of the user to achieve the roaming effect. The user can move linearly on site on the platform and can turn left and right, particularly, real ground slope experience can be obtained through proper tilt of the platform.

An image reconstruction system method for forming an image of media using data acquired from an ultrasound transducer, the method including the steps of detecting relative motion between locations in the media and the transducer; determining relative media velocity from the detecting relative motion; setting a reconstruction period for an image point based on the determined velocity; determining the amount of acquired data to use during the reconstruction period based on the reconstruction period; and using the determined amount of acquired data to reconstruct the image point for display. The system includes a data acquisition system, a processor configured to process the data, and an image display device for displaying the image.

The present invention provides a data transmission method between electronic devices and a system thereof, wherein the method comprises the following steps: 11) reading the acceleration sequence of device based on a movement perception technique; 21) determining the style of gesture movement according to the acceleration sequence; and 31) triggering the bluetooth transmission to the gesture of frontwards shaking the device. The transmission method of the invention does not require PC transfer or data wire connection and is based on the combination of movement perception technique and bluetooth technique. No keyboard operation is required. The searching of user for finding the interested data with a natural movement gesture and the transmission of interested data to another device are facilitated.

The invention provides a vibration monitoring system and a signal processing method based on LFMCW (Linear Frequency Modulation Continuous Wave) radar. The vibration monitoring system comprises a radar transceiver, a tuned signal generator, a data collection module, a signal processing module, and a display and analysis module. The signal processing method comprises the following steps: step one,capturing effective baseband beat signals within each frequency sweep period, and generating composite beat signals; step two, estimating the beat frequency; step three, carrying out phase estimationthrough an algorithm similar to maximum likelihood estimate; step four, carrying out phase jump correction on an estimated initial phase time sequence; and step five, extracting vibration displacementtime domain information. The LFMCW radar is utilized to conduct non-contact type vibration movement sensing, vibration displacement time domain information is extracted by accurately estimating the initial phase of the beat signals within each frequency sweep period, and vibration monitoring requirements for target objects in an extreme environment and from a medium or short distance are satisfied.

The present invention provides a hull detection underwater robot that comprises an underwater robot body which is equipped with an environment sensing device, a movement sensing device and a movement executing device. The environment sensing device comprises an ultrasonic thickness gauge, image sonar and an underwater low light level camera. The movement sensing device comprises an optical fiber compass and a depth gauge. The movement executing device comprises a conduit propeller and a three degree of freedom tripod head. All devices are connected with a PC/104 computer in a hyperbaric chamber of the underwater robot body. A control program is embedded in the PC/104 computer. The PC/104 computer collects the information of the environment sending device and the movement sensing device, then communicated with a water surface main control computer for the large data volume network communication of mixed data and outputs a control instruction of the water surface main control computer to the propeller.

The invention discloses a visual motion evoked brain-controlled lower limb active and passive cooperative rehabilitation training system, which comprises a visual stimulation module, wherein the output of the visual stimulation module is connected to the first input of an electroencephalogram signal acquisition module; the second input of the electroencephalogram signal acquisition module is connected to the output of a lower limb rehabilitation training module; the output of the electroencephalogram signal acquisition module is connected to the input of a computer which is provided with an active and passive cooperative control module; the first output of the computer which is provided with the active and passive cooperative control module is connected to the input of the visual stimulation module; and the second output of the computer which is provided with the active and passive cooperative control module is connected to the input of the lower limb rehabilitation training module; active stimulation on motion control nerves and passive stimulation on motion perception nerves are achieved, and a closed-loop nerve bypass is established so as to promote neural reorganization and reconstruction; and meanwhile, the rehabilitation training is completed on the basis of the full development of patient's subjective desire, and the interesting of the rehabilitation training is enhanced, so that patient's initiative is mobilized.

The invention discloses a method for the hot plug of a user identification card and a mobile terminal. The embodiment of the invention senses the plug-in and pull-out actions of an SIM card through a sensor. When the sensor senses the plug-in of the user identification card, the initiation of the user identification card is triggered; or when the sensor senses the pull-out of the user identification card, business programs related to the user identification card are stopped. Compared with the polling mode sensing the plug-in and pull-out of the SIM card in the prior art, the method greatly reduces occupied system resources and improves the operating efficiency of the system.

The invention relates to a wireless wristwatch with a monitoring function and an application method of the wristwatch. The wireless wristwatch uses a wristwatch which can be worn on the arm of a human body as a carrier. The wireless wristwatch comprises a pulse monitoring unit, a blood pressure monitoring unit, a body temperature monitoring unit, a motion sensing unit for monitoring motion states, a judging unit, an alarming unit, a wireless transmission unit, a display unit and a wireless charging unit. The judging unit transmits the received pulse parameters, blood pressure parameters, body temperature parameters and motion state parameters of a to-be-monitored person to the display unit and the wireless transmission unit while judges respectively according to the corresponding set thresholds of vital sign parameters, and transmits alarming information to the alarming unit if the judging condition for triggering an alarm is reached. The alarming unit transmits the alarming information to the wireless transmission unit for transmission according to preset alarming identification. The display unit is used for displaying each parameter received by the wireless transmission unit and the alarming information. The wireless charging unit is used for wireless charging and powering each unit of the wireless wristwatch.

The invention discloses an encryption/decryption system and method based on space motion. The encryption/decryption system mainly comprises a motion sensing module, a private key generation module, an encryption module, a decryption module, a control module and a private key storage module, wherein the motion sensing module is used for receiving direction data generated by a direction sensor hardware; the private key generation module is used for processing the direction data and converting the direction data into a vector which is used as a user private key; the encryption module and the decryption module are used for completing the encryption and decryption process of the information by adopting the data encryption standard (DES), AES (Advanced Encryption Standard) and other optional symmetrical private key systems; the control module is used for controlling the system and calling other modules for intentions of different users; and the private key storage module is used for storing different generated private keys according to the information of different users in a ciphertext form. By utilizing the system and the method, the quick private key generation and encryption/decryption technology is provided by utilizing the motion sensing capability of portable equipment, such as a gyroscope and an acceleration transducer, and a user can finish the encryption/decryption operations on the information by utilizing the private keys.

The invention relates to an automatic door system based on a radar sensor. The control on an automatic door is realized by the automatic door system by utilizing radar as a motion sensing sensor. The automatic door system comprises the radar sensor and a controller; when people or other foreign matters enter into a detecting area of the radar sensor, a response signal is generated by the radar sensor and is transmitted to the controller, and the controller immediately drives a motor to open a door; four-level speed regulations, namely, high speed, middle speed, low speed and extruding speed, are adopted by the controller; the low speed is adopted during the process of door distance measurement; the high speed, the middle speed and the extruding speed are adopted during a normal running process; and the speeds are adjusted by an accurate potentiometer.

A motion sensing device, relative to a surface motion, is used to control screen cursor. The sensing device consists of a main part if a pen and an optical trackball situated at the front of the part. A luminescent device and a photographic device are situated inside the main part and several buttons outside. The photographic device has an image detecting array and a signal processing unit. The optical trackball, situated inside the main part, is used to reflect the light sent from the luminescent device to the photographic device. When the motion sensing device moves at the surface and the optical trackball turns, the image detecting device receives the reflected light with information of the trackball surface. Then the signal processing unit processes and changes the light into control signals so as to control the screen cursor. The device is easy to operate and directs more correctly, improve the application reliability and accuracy.

The invention discloses a two-dimensional plane representation method for the images of the intestinal tract. The realization of the method is based on a wireless sacculus endoscope system in which an attitude motion sensing module and an intestinal cavity identifying module are embedded. The method comprises several following steps: reading images; classifying an image set into turbid images and non-turbid images; dividing a non-turbid image set into a plurality of subsets; calculating the relative position relationship of a camera and the wall of the intestinal tract when shooting each image; carrying out the treatment of rectifying or mapping on the images; carrying out registered splicing or similar matching on the images after being rectified or mapped; and combining the subsets to form a two-dimensional expansion drawing of the wall of the intestinal tract. By adopting the two-dimensional representation method for the images of the intestinal tract, which is provided by the invention, the redundant contents of images collected by a wireless endoscope can be greatly reduced. The two-dimensional plane representation method for the images of the intestinal tract is beneficial for a doctor to comprehend the images, the working difficulty of the doctor can be lowered, and the film reading efficiency is enhanced.

A video phone with the function of motion sensing is characterized in that a vibration sensing unit which monitors the motion state of a user and is connected with a base band system is added onto the prior video phone. The invention also provides a method for improving the image quality of the video phone with the function of motion sensing, and the method comprises the following steps: when the video phone user exercises, the vibration sensing unit senses the continuous movement range and the frequency of the user's body, and adapts the code data in an encoder per unit time to the constant bandwidth by adjusting the coding parameters of the encoder of the video phone, thereby realizing self-adapting operation on different application occasions. By controlling the image quality of a single frame, the invention achieves the balance between the image quality and the frame rate, thereby enhancing the effect of image communication, and further realizing self-adapting operation on different application occasions.

To supplement a video display on a conventional television, a surround video stream may be projected onto wall and other surfaces adjacent the television. The surround video stream may derive from a wide angle lens camera positioned alongside the main camera. The surround video stream may be processed in a local processor to compensate for departures from planar geometry in the wall surfaces. Where no surround video stream is received, a video processor may synthesize a surround video stream from the main video signal. Moving objects represented in the main video signal may be synthesized in the surround video to provide the perception of movement across the viewer's full field of view.

A method of diagnosis is disclosed. The method comprises using a display device for presenting a motion perception test to a subject and determining a subject response to the motion perception test. The response can be used for assessing presence or absence of demyelination and/or remyelination.

The invention discloses a bionic vision self-motion perception map drawing method, a storage medium and equipment. The method comprises steps of building a scene memory unit representing a spatial position and an environment landmark template according to the environment information collected by a bionic vision perception system, and generating a corresponding scene memory database; acquiring self-motion information according to a gyroscope and an accelerometer, performing direction and displacement encoding, and updating pose sensing information; correcting the self-motion information by adopting a scene memory bank and an environment landmark template; and drawing and correcting the bionic self-motion perception map according to the mutual relation among the environmental landmark template, the scene memory unit and the self-motion perception. The method is advantaged in that self-motion sensing errors can be reduced by using the visual sensing template, and precision of self-positioning and accuracy of closed-loop detection of the scene memory unit are improved.

The invention relates to a movement perception model extraction method based on a time-space domain. The method comprises the specific steps of: inputting a video coding frame; establishing a movement model; scanning movement perception objects; establishing a time-space domain split model; and finally obtaining a final time-space domain movement perception model by combining an edge determination method with the movement model and the time-space domain split model. In consideration of the region consistency of movement objects, by combining time-space video image split, the invention improves the extraction effect of video movement objects and establishes the movement perception model based on a time-space domain.

A skiing surfing virtual reality simulation system is featured by comprising a simulation board, a lower limb motion perception type board, a body motion perception portion, VR glasses, and a controlportion; the control portion receives user motion related information from the lower limb motion perception type board and the body motion perception portion, elevates the simulation board and adjuststhe inclination angle of two shafts, and sends images representing link results to the VR glasses; the system provides balance state changes caused by speed reduction and acceleration, acceleration and speed reduction feelings and acceleration and speed reduction conversions caused by centrifugal force, such as wind, fog and fragrance field feelings; when operating a curve path, the system executes visual sight induction, thus providing similar feelings of a user in a real slide way in speed reduction, and obviously improving the simulation device vividness effect.

The invention discloses a vision and touch tester and a vision and touch sensitivity testing method. In the vision and touch tester, a parameter testing module of a parameter setting and signal generating module is respectively connected with the input end of a stimulating signal receiving module; the output end of the stimulating signal receiving module is connected with the input end of a signal control module; the output end of the signal control module is connected with the input end of a multi-channel multi-path signal generation module; the output end of the multi-channel multi-path signal generation module is respectively connected with a vision signal source and a touch signal source; a 'yes' button and a 'no' button are respectively connected with the input end of a feedback signal acquisition module; the output end of the feedback signal acquisition module is connected with the input end of a feedback signal sending module; and the output end of the feedback signal sending module is connected with a data processing module. Besides conventional vision, touch and double-channel combined tests, the invention also can realize the researches of touch alarms, sports touches, touch memories, vision and touch combined motion perception phenomena, and the like.

The invention discloses a community-oriented ZigBee-based low-power-consumption fall detection system. The system comprises a plurality of motion sensing modules and a server, wherein the motion sensing modules adopt ZigBee and an interrupt function to realize low-power-consumption human body motion data acquisition and transmit the acquired motion data to the server which integrates ZigBee aggregation nodes through a ZigBee network; the server performs Kalman filtering and analyzes and detects whether falling occurs or not by a kNN algorithm; once falling is detected, the system automaticallyalarms. In the aspect of the transmission distance, the motion range of a user is widened well; in the aspect of user falling data acquisition and transmission, equipment with low power consumption and an interrupt-driven data transmission algorithm are adopted, so that the problem of high energy consumption of wearing equipment is solved; in the aspect of falling data processing and detection, the precision of detecting and identifying falling is improved; and in the aspect of falling alarm, warning and notification can be conducted timely.

An indoor autonomous positioning method based on fractional domain pedestrian motion perception comprises the following steps: (1) carrying out inertial data acquisition, filtering smoothing processing and outputting on an inertial measurement unit worn on the waist and being calibrated and compensated for the multi-motion behavior of an indoor pedestrian; (2) dividing processed sensitive axis accelerometer output signals by using the periodic change of the processed sensitive axis accelerometer output signals in a time domain, and extracting various motion characteristics in the fractional domain in each divided period; (3) carrying out machine learned classification by using a simplest classifier according to obvious characteristic classification; (4) carrying out error correction basedon strapdown resolving by using improved heading correction, motion state transition and floor constraint auxiliary dead reckoning algorithms; and 5) reckoning the position information by the three key elements of heading estimation, step length estimation and step number counting during the motion of the pedestrian. The method provides a strong support for indoor positioning from both the convenience and the accuracy.

The invention relates to a movement perception door lock, which comprises a single chip microcomputer, a motor, a nine-axis sensor and a communication module, wherein the single chip microcomputer isin communication connection with the nine-axis sensor and a zigbee module; the nine-axis sensor is used for collecting the door opening angle of the door lock and generating a signal when door lock movement changes; the zigbeee module reports the signal to a server through a gateway; the server notifies an APP module according to door lock movement change information; and the APP module judges whether the door is opened or not through a change value. The intelligent movement door lock has the beneficial effects that the state of the door is accurately detected, and a false alarm event generated due to inaccuracy in identification can be effectively reduced.

The invention discloses a lightweight real-time key generation method based on behavior motion perception in an internet of things wearable equipment. The method comprises the following steps that sensing data of acceleration sensors embedded in different wearable equipment of the user are acquired, wherein the sensing data are the acceleration data which are generated by different wearable equipment through random shaking together and have similar trajectories; high-pass filtering is performed on the acquired sensing data and mobile smooth filtering processing is performed; error correction filtering is performed on the sensing data of different wearable equipment, and the concrete process is that the bit sample points of which the adjacent difference value is less than the threshold are discarded; bit quantification is performed on the sensing data after error correction filtering by a data bit quantification algorithm based on the numerical relationship of adjacent data points; and two sets of wearable equipment performs negotiation so as to co-own the same security key.