316 results about "Head shaking" patented technology

This invention discloses a system and a method for monitoring fatigue of driver based on image process and information combination technology, first of all a camera head collects continuous digital signals, tests position of the drive face and further decides positions and sizes of eye, pupil and mouth, then determines the PERCLOS, frequency of yawning, rule of head shaking, gazing direction and time of the eyes and turns the four measurement values to fatigue degree and finally uses the information combination technology to combine the information of the four characters, when his fatigue degree exceeds a set value, the alarm starts up warning.

The invention discloses a second-level sight line tracing method based on face orientation constraint. The method comprises the following steps that: obtaining an image sequence; detecting face area and eye area image information; solving a face orientation, taking the face orientation as a ray direction, and defining the ray direction as a standard watching direction; intersecting the ray of the standard watching direction with an equipment screen to obtain a point of intersection, and taking the point of intersection as a standard watching point; taking a screen area delimited by taking the standard watching point as a center as a constraint field of view; and analyzing the eye area image information to obtain the watching area of the user on the constraint field of view. By use of the method, according to the physiologic habits of human eye for observing objects, head shaking is taken as effective sight line tracing information, and a head gesture is preferably considered. By use of the method, a calibration step is omitted, head movement compensation is not required, and true no-constraint sight line tracing can be realized.

The invention discloses an electric fan and a control method thereof. The electric fan comprises a fan body, a head shaking mechanism, a temperature sensing module, an image recognition module and a control module. The temperature sensing module is used for detecting the indoor environment temperature. The image recognition module is used for collecting image information of each person in a room and determining position information and identity information of each person according to the image information. The control module is used for obtaining the fan speed corresponding to each person according to the indoor environment temperature and the identity information, controlling the head shaking mechanism to operate according to the position information, and outputting the fan speed corresponding to each person when the head shaking mechanism operates to the position where the person is located. The comfort requirement of each person in the room can be met, and the electric fan is convenient, savable in energy and more intelligent.

A head gesture-based recognition system in Headset Computers (HSC) is disclosed. Notification dialogue boxes can be acknowledged by head nodding or ticking movement in the user interface. Question dialog boxes can be assured by head nods or head shakes in the user interface. Head swiping is also a recognizable form of user input through a head tracker of the HSC. Progress indicators and other visual display feedback are utilized.

The invention provides a device for inducing a plurality of vestibular illusions. The device comprises a revolving chair device for changing the input signals of the semicircular canals of human body vestibular organs, a head shaking device for changing the input signals of the semicircular canals of the human body vestibular organs, a vestibular electrical stimulation device for changing the input signals of the semicircular canals of the human body vestibular organs and otolith, and a control computer for controlling the revolving speed and the revolving time of the revolving chair device, the shaking manner, the angular velocity and the shaking time of the head shaking device, and the type and the strength of the stimulating current and the stimulating time of the vestibular electrical stimulation device, and displaying related parameters in real time. According to the device for inducing the plurality of vestibular illusions, the devices are used independently or combined in use to effectively induce a plurality of vestibular illusions of a human body such as somatogyral illusion, coriolis illusion and somatogravie illusion; as a result, the device can be applied to the ground-based simulation of the vestibular illusions of pilots, and further can be applied to related training about the floor space disorientation of the pilots, and therefore, accidents caused by space disorientation can be reduced.

The invention provides a twin-body mechanical fish which comprises a fish head part of the mechanical fish; two sets of tail-waving drive mechanism are arranged on the back of the fish head part, and are connected with the fish head in row; compared with a mechanical fish propelled by a single tail fin, the twin-body biomimetic mechanical fish not only makes use of, and develops the advantages of the fish-liked propelling, but also overcomes the head shaking problem of the single-tail propelling, and ensures the navigating stability of the biomimetic mechanical fish, thereby, reducing the navigating resistance of the mechanical fish, and improving the efficiency of the tail-biomimetic propeller.

The invention discloses a display movement bracket with an effect of protecting cervical vertebra. The display movement bracket with the effect of protecting the cervical vertebra comprises an arc-shaped pedestal, wherein an upright post is arranged on the arc-shaped pedestal; a head-shaking supporting arm for assembling a display is connected on the upright post; and the head-shaking supporting arm is connected with the display through a flange. The display movement bracket with the effect of protecting the cervical vertebra realizes horizontal rotating movement and vertical movement of a head and finishes head lateral bending movement and head circling movement under the conditions of maintaining basically consistent distance with eyes and sight line of the eyes vertical to a screen in the moving process of the display, can control various movement types, can set the movement speed through a speed adjusting switch knob, and ensures that the head can move at the proper speed when the eyes stare at the screen of the display.

The invention discloses a face image processing method and device. The method comprises the following steps of: obtaining a face coordinate in real time and determining head shake of a user according to change of the face coordinate; comparing the face coordinate with a preset judgement point so as to determine the current expression of the user; generating a facial makeup image according to the current expression of the user and / or the shaking head; acquiring a face image in real time; and covering the face image by the facial makeup image. The method and device have the beneficial effect that Sichuan opera facial makeups can be tried in real time through experiencing interactive face change in augmented reality, so as to carry out virtual interaction on Sichuan opera culture.

The invention relates to a head and neck structure of a service robot. The head and neck structure comprises a head and a neck, the head comprises a front shell, a rear shell and a head supporting frame assembly, the head is mainly formed by assembling groove type light plastic parts, and the advantages of being low in weight, low in manufacturing cost and smooth in appearance are achieved. A touch display screen, an eyebrow display block, a cheek display block and a camera assembly are arranged on the outer surface of the front shell, various personated combined expressions can be completed while video information is fed back to a user, and the emotion expression of the robot aiming at the user is enriched. The neck comprises an outer assembly, a pitching mechanism and a left-right rotating mechanism, compared with a common robot head action mechanism, the weight is low, and the neck is mainly formed by assembling groove type light plastic parts, is simple and compact in structure and low in cost, and can be driven by two motors to carry out nodding and head shaking actions.

The invention discloses a humanoid robot based on hollow drivers and micro drivers. The humanoid robot comprises a robot chest assembly, a robot head assembly, a robot waist and crotch assembly, a robot left leg assembly, a robot right leg assembly, a robot left arm assembly and a robot right arm assembly. The robot chest assembly comprises a chest shell and a robot controller. The robot head assembly comprises a head body, the head shaking micro driver and the nodding micro driver. The robot waist and crotch assembly comprises a waist installation shell, a crotch installation shell, the waist rotating hollow driver, the left leg hollow driver, the right leg hollow driver and the stooping hollow driver. Each of the robot left leg assembly and the robot right leg assembly comprises a thigh, a crus, a foot, the crotch joint hollow driver, the knee joint hollow driver and the angle joint hollow driver. Each of the robot left arm assembly and the robot right arm assembly comprises a large arm, a forearm, a hand, the shoulder joint hollow driver, the elbow joint micro driver and the wrist joint micro driver. The humanoid robot has the beneficial effects that the humanoid simulation effect is good, and design is novel.

The invention discloses a human-simulated neck moving mechanism. The human-simulated neck moving mechanism comprises a base, a head shaking mechanism part, a nodding mechanism part and a head swinging mechanism part, wherein a large gear and a small gear are driven by a motor to perform transmission so as to realize head shaking movement; a disk clamp is driven through the motor to drive a head supporting disk to move, so that nodding movement and head raising movement are realized; two head swinging motors rotate, and a middle rod and a lower swing rod are driven to swing through a head swinging connecting rod so as to realize head swinging movement of the head. The human-simulated neck moving mechanism disclosed by the invention is simple in structure and can improve the humanized effect of a human-simulated robot; a head raising angle is 15 degrees, a nodding angle is 15 degrees, a left head swinging angle is between -45-45 degrees, a right head swinging angle is between -45-45 degrees, a largest head swinging angle is 90 degrees, the human-simulated neck moving mechanism can complete the head shaking movement and the head swinging movement, which a normal person can achieve, a neck can complete movements such as a Xinjiang dance and is flexible during movements, and the human-simulated neck moving mechanism is high in human simulating degree.

The present invention enables a user's movement indicating his or her intention to be recognized easily and accurately. On the basis of image data taken by a camera 13, a face direction detecting section 14 senses the direction of a user's face and a line-of-sight sensing section 15 senses the direction of the user's line of sight. When the user's face is directed downward, while the user's line of sight is directed upward with respect to the face direction, a nod recognizing section 21 recognizes that the user has nodded. When the user's face is directed rightward or leftward, while the user's line of sight is directed in a direction laterally opposite to the face direction, a head shake recognizing section 22 recognizes that the user has shaken his or her head. The present invention is applicable to an intention checking apparatus that checks the driver's intention.

The invention discloses an electroencephalogram electrode space positioning system, comprising a plurality of auxiliary positioning marks, an image acquisition device and a data processing device; the auxiliary positioning mark contains characteristic marks; and the characteristic marks comprise a plurality of mutually parallel nested rectangles with different sizes and colors, wherein the centers of the rectangles are coincident with the circle center of an identification part. The invention further discloses an electroencephalogram electrode space locating method, comprising the following steps of: firstly, using the nested rectangles with different color combinations at a certain distance from the scalp as the auxiliary positioning marks; calculating the vertex coordinates of the rectangle by utilizing intersection of both sides of the rectangle, and independently finishing the positioning of electroencephalogram electrodes in a mono-angle according to the principle of P4P; and then fixing by using the image acquisition device, wherein the method of tester movement carries out the positioning on the electroencephalogram electrodes in the whole head area. The electroencephalogram electrode space positioning system and the positioning method avoid the interferences of hair and electrode connecting wires and the positioning error caused by head shaking in the case of positioning, and have higher positioning precision, stability, automaticity and repeatability.

The invention discloses a control method for a fan. The fan comprises a fan head and an up-down head shaking mechanism. The fan head can be rotationally arranged on the up-down head shaking mechanism. The control method for the fan comprises the steps that a shutdown signal is received by a controller, and the up-down rotating position of the fan head on the up-down head shaking mechanism is confirmed according to a position signal fed back through the shutdown signal and a position detecting element; whether the up-down rotating position conforms to a preset up-down rotating position is judged through the controller; if yes, the controller controls the up-down head shaking mechanism to stop driving the fan head to rotate; if no, the controller controls the up-down head shaking mechanism to drive the fan head to rotate to the preset up-down rotating position, and then the controller controls the up-down head shaking mechanism to stop driving the fan head to rotate. By means of the control method for the fan, shutting down and resetting of the fan head can be achieved. The invention further discloses the fan.

The invention discloses an anesthesia positioner. The anesthesia positioner comprises a bed board, a long-strip-shaped hole which is formed in the width direction of the bed board is formed in the end, in the length direction, of the bed board, an appropriate supporting plate is selected according to the head circumference size of an infant and arranged in the middle of the long-strip-shaped hole, a pillow is arranged on the supporting plate, telescopic rods stretch out and drive two arc-shaped clamping plates to stretch out of the upper surface of the bed board by starting two bottom oil cylinders, the positions of the two bottom oil cylinders are adjusted by starting side oil cylinders, then the distance between the two arc-shaped clamping plates is adjusted, non-woven fabric layers of the arc-shaped clamping plates make contact with one side of the head of the infant, and then the condition that in the infant anesthesia process, the anesthesia position is inaccurate due to the fact that the head shakes at will is avoided; the distance between two connecting plates is adjusted by sliding the connecting plates to enable the non-woven fabric layers of the clamping plates to make contact with the side of a body of the infant, then the body of the infant is positioned, and anesthesia position inaccuracy caused by body swinging is avoided.

Disclosed is a detection method of a human eye state. The method comprises the following steps: extracting an eye area in a face image; through a rapid radial symmetry transformation algorithm, obtaining a radial symmetry transformation result of each pixel point in the eye area; determining that the positions of pixel points which have the maximum radial symmetry transformation results are pupil positions; selecting an area comprising the pupil positions as an eye template in the face image where the pupil positions are disposed; searching for an area to be detected, and determining that an area matching the eye template is an eye area to be detected; if the correlation coefficient of the eye template and the eye area to be detected is smaller than a matching threshold, determining that eyes in the eye area to be detected are at a blink state; and if the correlation coefficient of the eye template and the eye area to be detected is greater than the matching threshold, determining that the eyes in the eye area to be detected are at an eye-opening state. The technical scheme provided by the invention effectively improves the eye state detection accuracy, and has better robustness for glasses, head shaking, illumination condition transformation and the like.

The invention discloses a snake movement experiment table for a railway vehicle bogie which can be used for carrying out in-depth teaching and research of the snake movement of the railway vehicle bogie. Therefore, the snake movement experiment table for the railway vehicle bogie comprises a rail and a bogie which is mounted on the rail and capable of moving along the rail. The bogie comprises a front wheel pair, a rear wheel pair and a framework connecting the front wheel pair and the rear wheel pair. The rail is provided with a testing section capable of simulating practical rail lines, and a first sensor module and / or a second sensor module and / or a third sensor module are arranged on the experiment table, wherein the first sensor module is used for acquiring the motion parameters of the framework, the second sensor module is used for acquiring the motion parameters of the front wheel pair and the third sensor module is used for acquiring the motion parameters of the rear wheel pair when the bogie runs on the testing section. The first sensor module and / or the second sensor module and / or the third sensor module are in signal connection with a data processing system for calculating and outputting related data of sway and head shaking of the framework and / or the front wheel pair and / or the rear wheel pair.

The present invention discloses a visualization emulation method of railway locomotive vehicle wheel track dynamic contact. Said method includes the following steps: firstly, constructing section model of left and right side wheels of balance position and steel track; utilizing vehicle-track coupling dynamics calculation method to calculate displacement of five freedoms of vertical direction, transverse, head-shaking, side-rolling and rotation of the wheel when the train is running, and making them be superimposed to left and right wheels; at the same time calculating displacement of three freedoms of vertical direction, transverse and torsion of left and right side tracks and track displacement produced by railway line non-balance, making wheel displacement and track displacement be superimposed on the balance position of track contact section model; finally, making assembly and making wheel track dynamic space contact relation ship implement two-dimensional visualization emulation reproduction.

The invention is suitable for the technical field of air conditioners and provides a method for calibrating rotating angle of an air outlet of a wide-angle air conditioner. The method includes the following steps: judging whether reservation angle of the air outlet of the air conditioner is uniform with current angle or not; if not, driving a head shaking part of the air conditioner to drive the air outlet to rotate through a basic calibrating angle signal; if a feedback signal is received, continuing to output the basic calibrating angle signal; if no feedback signal is received, continuously outputting the basic calibrating angle signals in a preset number; if the feedback signal is received, returning to the previous step, and if not, stopping calibrating. Angle difference between the reservation angle and the current angle is calibrated through multiple basic calibration angles, whether calibration is performed smoothly or not is examined through the feedback signal, a user can try to enable angle calibration to restore a normal state if calibration is not smoothly performed, and calibration can be stopped if restoration fails to protect the air conditioner from being burnt, so that angle calibration process is realized intelligently while equipment safety is protected.

The invention provides a head structure of a humanoid service robot. By means of the head structure, blinking of eyelids, up-down and left-right movement of eyeballs, opening and closing of the mouth and nodding and left-right head shaking actions can be achieved. The structure mainly comprises eye parts 1, a mouth part 2 and a neck part 3. Actions of the eye parts are achieved through a parallel connecting rod mechanism 4, a crank and guide rod mechanism 5 and a crank and rocker mechanism correspondingly. Opening and closing of the mouth are achieved through direct drive of a motor. The nodding and head shaking actions of the neck are achieved through direct drive of motors (6 and 7). By means of the rod mechanisms, blinking of the eyelids of the two eyes and the up-down movement and the left-right movement of the eyeballs can be synchronously achieved through drive of the motors correspondingly. The head structure is simple and compact in structure, and the basic face expression actions can be achieved.

The invention provides a method and a device for creating an eye template as well as a method and a device for detecting an eye state. The method for creating the eye template comprises the following steps: extracting an eye region in a facial image; obtaining a radially symmetrical transformation result of each pixel in the eye region by a fast radially symmetrical transformation algorithm; determining the position of the pixel with a maximal value of the radially symmetrical transformation result as a pupil position; selecting a region containing the pupil position in the facial image in which the pupil position is positioned as the eye template. The method for creating the eye template is capable of accurately positioning the pupil position, so that the created eye template is accurate and reliable. The method for detecting the eye state comprises the following steps: obtaining the eye template by use of the method for creating the eye template; searching a to-be-detected region; determining the region matched with the eye template as a to-be-detected eye region; determining the eye state based on the similarity degree of the eye template and the to-be-detected eye region. The method for detecting the eye state is capable of effectively improving the eye state detection accuracy and has better robustness for spectacles, head shaking, illumination condition transformation and the like.

The invention discloses an augmented reality display system, a helmet and a method based on sight tracking. The augmented reality display system comprises an eye movement tracking module, a binocularinertia camera module, a processing module and an augmented reality display module. The eye movement tracking module is used for collecting human eye images and sending the human eye images to the processing module; the binocular inertial camera module is used for collecting external images and head motion parameters and sending the external images and the head motion parameters to the processingmodule; the processing module is used for determining viewpoint coordinates according to the human eye images and the head movement parameters, reconstructing an external physical environment using the external image, recognizing a concerned target according to the viewpoint coordinates, generating virtual information of the concerned target, and sending the virtual information to an augmented reality display module; and the augmented reality display module is used for displaying the received virtual information. By means of the eye movement tracking module and the binocular inertia camera module, a target concerned by human eyes can be rapidly positioned, errors caused by head shaking are reduced, and the target recognition accuracy is improved.

The invention provides a USB desk fan with a humidification function. A fan body and a base arranged below the fan body are included. A power cavity is formed in the fan body. The same power source isutilized in equipment for driving the fan body to rotate, meanwhile, the fan body is driven for head shaking, meanwhile, a humidification device is driven to humidify air and swing up and down, the range of wind power generated by the equipment is enlarged, and meanwhile the equipment humidification effect is more obvious. The equipment combines the humidification function and the air blowing function, the cooling effect is improved, meanwhile, the humidification efficiency is improved, functionality is high, and high usage and popularization value is achieved.

The head shaking type piezoelectricity ultrasonic motor of large moment teatures in that the upper match blocks on the stator uses the bar type staircase structure of the ultrasonic amplitude of variation to simplify the structure, increase the moment. The joint parts between the rotor and the stator are pure plane in order to increase the carrying capacity. The adjusting screw is provided at the central shaft for alignment with the conected part. The maximum moment of the motor is 1.5kgfcm, increasing nearly 3 times. The stepping lifting is larger than 10 to the power 8 steps, raised 5 times. The motor can make continuous motion or stepping motion. The circular motion can be completed within 0-360 degree interval with any stepping angle. The external diameter can be adjusted within 2-40 mm.

The present invention enables a user's movement indicating his or her intention to be recognized easily and accurately. On the basis of image data taken by a camera 13, a face direction detecting section 14 senses the direction of a user's face and a line-of-sight sensing section 15 senses the direction of the user's line of sight. When the user's face is directed downward, while the user's line of sight is directed upward with respect to the face direction, a nod recognizing section 21 recognizes that the user has nodded. When the user's face is directed rightward or leftward, while the user's line of sight is directed in a direction laterally opposite to the face direction, a head shake recognizing section 22 recognizes that the user has shaken his or her head. The present invention is applicable to an intention checking apparatus that checks the driver's intention.

The invention discloses a machine head and a cooling fan. The machine head comprises a shell with an air channel, and an air inlet and an air outlet of the air channel are correspondingly formed in the opposite side walls of the shell; and a wet curtain assembly and a fan assembly are arranged in the air channel in the air circulation direction, the wet curtain assembly is fixed to the inner wall of the shell, and the wet curtain assembly is obliquely arranged relative to the axis of the air channel. According to the machine head, the wet curtain assembly is obliquely arranged relative to the axis of the air channel, so that in the head shaking process of the machine head, it is guaranteed that water flow can flow through a wet curtain and make contact with air when the machine head is at any angle, the purposes of air supply and cooling are achieved, and user experience is good.

The invention relates to a service robot and belongs to the technical field of robots. The service robot comprises a head, arms, a trunk capable of bending down and taking a bow, a walking mechanism and a controller, wherein the head comprises a nodding mechanism, a head swinging mechanism and a connecting rack, the nodding mechanism is connected with the head swinging mechanism, and the connecting rack is connected with the nodding mechanism; the nodding mechanism comprises a nodding drive mechanism connected with the controller, a first driving wheel and an intermediate mechanism; the connecting rack is hinged with the intermediate mechanism; each arm comprises an upper arm and a lower arm, the upper arm is hinged with a rotary seat, and rotation of the upper arm and the lower arm is completed through mutual cooperation of the upper arm and the rotary seat and mutual cooperation of the upper arm and the lower arm; the walking mechanism is located below the trunk and used for supporting the robot and completing walking actions of the robot. The robot can realize functions of nodding, head shaking, handshaking, bowing, hand waving, embracing, walking and the like by the aid of the head, the arms and the walking mechanism, so that the conditions of single function and poor user experience of the service robot in the prior art are overcome.

The invention discloses a head shaking mechanism of a household appliance. The head shaking mechanism comprises a head shaking support, a drive device, a gear cover, a drive gear and a base. The drive device is arranged on the head shaking support. The gear cover and the head shaking support are fixedly connected. The drive gear is connected with the drive device. The head shaking support is rotationally connected with the base. The drive device is used for driving the drive gear to rotate relative to the base so as to drive the head shaking support to rotate to the preset position relative to the base. At the preset position, the gear cover is used for limiting the rotation of the head shaking support so that the head shaking support can reversely rotate. In the head shaking mechanism of the household appliance in the implementation manner, when the head shaking support rotates to the preset position, the gear cover can limit the rotation of the head shaking support and make the head shaking support reversely rotate, and therefore the phenomenon of joggling of the head shaking mechanism of the household appliance due to emergency stop of the head shaking support is effectively prevented. In addition, the invention further discloses the household appliance comprising the head shaking mechanism of the household appliance.

The invention discloses a control method for a head shaking system. The control method comprises the following steps of sensing the current position of a head shaking assembly when acquiring a shutdown signal; judging whether the current position is consistent with a preset initial position or not; and when the current position is not consistent with the preset initial position, controlling a driving motor of the head shaking assembly to operate until the head shaking assembly rotates to the initial position. The invention also discloses a control device for the head shaking system, a fan and a fan heater which are used for realizing the method. According to the technical scheme of the invention, the user experience can be improved, and elements of the fan can be prevented from being damaged.

The invention discloses a 360-degree steering double-variable frequency speed control fan. The 360-degree steering double-variable frequency speed control fan consists of a fan cover, a fan base, a base shell, a base cover plate, fan blades, a hand tightening screw rod, a permanent magnetic direct-current brushless motor, a high-torque permanent magnetic direct-current motor, a PCB, a double-nuclear single-chip computer, a rotating ball column and a bearing. The 360-degree steering double-variable frequency speed control fan is characterized by being a double-motor driving structure; an air supply part is driven by the permanent magnetic direct-current brushless motor; a 360-degree head shaking steering part of the fan base is driven by the high-torque permanent magnetic direct-current motor; the double-motor control is realized by a circuit on the PCB; and the double-nuclear single-chip computer can control variable frequency speed control of the permanent magnetic direct-current brushless motor and the high-torque permanent magnetic direct-current motor side by side. The 360-degree steering double-variable frequency speed control fan serves as an indoor circulation variable frequency fan for use in four seasons, reaches the lowest power consumption of 3 watt, can be applied to the places of families, restaurants and cinemas, is preferably matched with an air conditioner or other heating equipment for use, and is an optimal updating product of a conventional ventilation fan or a ventilation fan.