821 results about "Stationary state" patented technology

Disclosed are a wireless communication system, method, and information processing system for optimizing paging channel utilization. The method includes determining a mobility state of the wireless device (104). If the mobility state of the wireless device (104) is a mobile state, a signal is generated for a page to be transmitted to a set of base stations (110) in a paging area (402) that the wireless device (104) is currently located in. If the mobility state of the wireless device (104) is a stationary state, a subset of base stations from the set of base stations (110) within the paging area (402) is selected. A signal is then generated for a page to be transmitted to the subset of base stations.

The invention provides a method for detecting the initial position of a magnetic pole of a rotor of a built-in permanent magnetic synchronous motor, belongs to the field of motor control, and solves the problems of over-complicated processing, easy occurrence of polarity misjudging, poor practicality and the like existing in the conventional method based on high-frequency signal injection for detecting the initial position of the rotor. The method comprises the following steps: constantly maintaining the stationary state of the rotor; injecting a rotating high-frequency voltage signal into a stator winding; detecting three-phase stator current and converting the three-phase stator current into two-phase static coordinates; acquiring an error signal capable of reflecting position information of the magnetic pole of the rotor through signal processing; adjusting the error signal by using a PI tracker so as to acquire an initial judging value of the position of the magnetic pole of the rotor; and injecting two impulse voltage vectors in opposite directions into the stator winding, comparing values of direct axis current components by detecting the three phase current and converting the rotating coordinates so as to determine the polarity of the magnetic pole, and finally acquiring the initial position angle of the magnetic pole of the rotor of the built-in permanent magnetic synchronous motor.

A navigation system includes: a detection unit that detects a vehicle to be in a stationary state or in a traveling state; a display monitor at which a roadmap is displayed; and a manual route specification unit that allows a road traced on the display monitor to be specified as a route when the vehicle is detected to be in a stationary state by the detection unit and does not allow the road traced on the display monitor to be specified as the route when the vehicle is detected to be in a traveling state by the detection unit.

A transportable projector includes a focus adjustment unit for moving a focus lens in a projection lens, an acceleration sensor for detecting acceleration in a direction along an optical axis of the projection lens in the projector, a determination unit for determining whether the projector is in a stationary state or in a moving state in accordance with an output of the acceleration sensor and for respectively determining the direction to which the projector has moved and the distance that the projector has moved in accordance with an output of the acceleration sensor, and a control unit for controlling movement of the focus lens by the focus adjustment unit in accordance with the determined direction and the determined distance of the projector.

Provided is a brake control apparatus for a vehicle which detects an amount of brake-pedal operation by means of an electric signal, and then calculates a braking force demanded by a driver from the electric signal, and thereby generates the demanded braking force. A control mode for a braking force is switched from a normal control mode to a stationary-vehicle control mode, if a determination that the vehicle is in a stationary state is followed by another determination that an electric signal corresponding to an actual braking force exceeds a command value for a stationary-vehicle braking force while the vehicle is in the stationary state. The control mode for a braking force is switched from the stationary-vehicle control mode to the normal control mode, if it is determined that the demanded braking force becomes smaller than the command value for the stationary-vehicle braking force. In addition, in the stationary-vehicle control mode, a braking force generated by a means for braking is equal to the command value for the stationary-vehicle braking force, whereas, in the normal control mode, the braking force generated by the means for braking is equal to the braking force demanded by the driver.

A vehicle comprises a vehicle frame, a prime mover mounted on the vehicle frame, a laterally turnable wheel disposed at one side of the vehicle frame, a pair of drive wheels disposed at the other side of the vehicle frame, a steering operation device, a traveling operation device for setting the traveling speed and direction of the vehicle, and a pair of transmissions for controlling the rotary speed and direction of the respective drive wheels. The transmissions are operationally connected with the steering operation device so as to create a difference of rotary speed between the drive wheels according to operation of the steering operation device. The transmissions are operationally connected with the traveling operation device so as to drive the drive wheels in a common rotary direction from their stationary state according to operation of the traveling operation device. A clutch is interposed between the transmissions so as to connect the drive wheels with each other when the steering operation device is set in a straight traveling position. Based on setting of a switching device for switching the traveling direction of the vehicle between forward and rearward, a reverser decides the rotational direction of the drive wheels.

The present invention discloses a capsule endoscope image display controller (26) including: an image-to-image similarity calculating unit (36) that calculates, for each image included in an image sequence captured by a capsule endoscope which moves within the digestive organs, a similarity between the image and its temporally consecutive image; an amount-of-movement calculating unit (47) that calculates, for each image included in the image sequence, an amount of movement of a feature area included in the image; a video state classifying unit (41) that classifies, for each image included in the image sequence, a video state of the image into one of the following states, based on the video state, the similarity, and the amount of movement of the image: (a) “stationary state” indicating that the capsule endoscope is stationary, (b) “digestive organs deformation state” indicating that the digestive organs are deformed, and (c) “capsule moving state” indicating that the capsule endoscope is moving, based on the similarity and the amount of movement of the image; a rendering duration determining unit (42) that determines, for each image included in the image sequence, a rendering duration between the image and its temporally consecutive image; and a display controlling unit (44) that sequentially displays, on a screen, the images included in the image sequence with the determined rendering durations.

The invention relates to a walking movement classification method based on triaxial acceleration transducer signals, which comprises the following steps: fixing a triaxial acceleration transducer on the upper part of the ankle of a testee, connecting the triaxial acceleration transducer with a computer, setting an initial value, and acquiring the variation conditions of different accelerations during the movement; calling a one-step detection subprogram; judging whether the one-step detection is successful; calling a downstairs movement state detection subprogram; judging whether the testee is in the downstairs movement state; calling a voting algorithm subprogram; judging whether the testee is in the upstairs movement state; judging whether the testee is in the forward movement state; setting the movement state as the forward movement state; setting the movement state as the upstairs movement state; setting the movement state as the backward movement state; setting the movement stateas the downstairs movement state; judging whether the current acceleration value exceeds the preset value; setting the movement state as the stationary state; setting the movement state as the running state; and ending. The invention provides an effective solution for individual navigation systems, M-health systems to evaluate the position of walkers in some regions not covered by GPS signals.

A scene change detector algorithm in image sequence is disclosed, in which a two-stage detecting process is applied to perceive a scene change in a precise and safe way. The algorithm includes classifying images into two different states, a transition state and a stationary state, after determining whether there is any change in adjacent frames, and confirming the scene change by rechecking whether there is the scene change in the classified frames.

This invention relates to laser and material performance test using continuous loading long-pulse laser to load a coating or film test subject surface in quasi-stationary state and heat its thin layer (only dozens of nm thick) with laser thermal action and thermal conduction thereafter, to form a temperature field in the subject. When the thermal stress reaches to a certain value on the coating abbesion will heppen to the subject or even warping or scaling due to the difference between coefficient of thermal expansion and the temperature and the feed system makes the subject to do feed movement to form mars on the surfaces. The related laser energy at scaling position at the interface can express the binding strength of the interface to get the binding strength by theory analysis and digital calculation.

A method and a device for outputting a signal when there is a hazardous surface under a vehicle includes providing an optical surface sensor for determining one or more parameters of the underlying surface, a stationary-state-determining device for determining whether the vehicle is stationary or is to be brought to a standstill, and an output device that outputs a signal if the underlying surface has been determined to be hazardous on the basis of the parameter(s), and the vehicle is stationary or is to be brought to a standstill.

The invention discloses a method for static dyeing by adopting supercritical fluid. The method comprises the following steps of: (1) dyeing: placing an object to be dyed in an uptake dyeing system for uptake dyeing; (2) static developing and color fixing with the supercritical fluid: placing the dyed object to be dyed in the step (1) in a supercritical fluid developing and color fixing kettle, and adding the supercritical fluid in the supercritical fluid developing and color fixing kettle for the developing and color fixing of the object to be dyed in the static supercritical fluid; and (3) after the developing and color fixing are completed, eliminating system pressure to recover the supercritical fluid, and opening the supercritical fluid developing and color fixing kettle for taking out the object to be dyed. In the method for static dyeing by adopting supercritical fluid, the supercritical fluid is in a stationary state in the developing and color fixing process, so that the phenomenon of dye migration cannot occur, the dyeing quality is easy to control, and the dyeing system does not need to be cleaned in the replacement of the dyeing color. Meanwhile, the invention also discloses a device for realizing the method for static dyeing by adopting the supercritical fluid.

The invention provides an automatic human tumble detecting method based on Kinect skeleton tracking. The automatic human tumble detecting method includes tracking skeleton of a human body through Kinect, acquiring spatial coordinates of six skeleton joints including head, left shoulder, right shoulder, left hip, right hip and the center between hips (defined as human body centroid point), calculating motion speed of the human body centroid point and the distance between the human body centroid point and the ground surface, excluding non-tumble events, timing the stationary state of the human body centroid point to form six judgment conditions, judging whether human tumble events occur or not, and alarming through cellphone texts once tumble events occur. The automatic human tumble detecting method is low in misjudgment rate, and without wearable sensing devices and dependence on visible light, 24-hour continuous real-time detection of the human body can be realized.

The present invention aims to provide method and apparatus to measure paper fiber orientation adapted to measure fiber orientation in this paper from an image to be measured formed by light beam transmitted through paper on the paper side opposite to the incident side thereof improved so that the fiber orientation in this paper being running through a paper making machine can be reliably on-line measured. Paper web (W) is irradiated practically at a right angle thereto with light beam emitted from a pulse laser source (1) and unpolarized through a condenser lens (2) and an image to be measured formed on a surface of the paper web (W) opposite to its incident surface is picked up by a CCD camera (3). An image pick-up optical system (3b) of the CCD camera (3) uses an extra depth-of-field lens. The image picked up in this manner is then image processed for elliptic approximation. Then a fiber orientation angle relative to a major axis of the obtained ellipse and a magnitude of fiber orientation based on a difference or a ratio between the major and minor axes of this ellipse are calculated. Pick-up by the CCD camera (3) may be carried out at predetermined periods and with an appropriate pulse width to pick up a target image as if the paper web (W) is in stationary state.

An acceleration detection device for detecting detected acceleration of a vehicle is provided with a stopped acceleration detector, an acceleration change detector, an acceleration estimating unit and a correcting unit. The stopped acceleration detector detects a detected stationary acceleration value when the vehicle is stopped on a sloping road based on an acceleration sensor signal from an acceleration sensor mounted on the vehicle. The acceleration change detector detects an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road based on the acceleration sensor signal. The acceleration estimating unit estimates an estimated stationary acceleration value based on the acceleration change that was detected by the acceleration change detector. The correcting unit corrects the detected stationary acceleration value based on a deviation between the estimated stationary acceleration value and the detected stationary acceleration value.

A mobile communication terminal 10 receives “HCS_PRIO” of a notice data (System Information Block Type 3) of a base station 1 or 3, and determines whether the terminal 10 is present “indoor” and is in “a stationary state or a state moving at a low speed” based on the receiving result. Since there is a high possibility that the terminal 10 is connectable with a wireless LAN when the terminal 10 is present “indoor” and is in “a stationary state or a state moving at a low speed”, the terminal 10 sets a period for monitoring arrival of a beacon signal.

The invention discloses an electromagnetic butt joint system. The electromagnetic butt joint system comprises a driving system and a driven system, wherein a first electromagnetic coil and a second electromagnetic coil are arranged on the driving system in parallel and in a spaced mode, and a third electromagnetic coil and a fourth electromagnetic coil are arranged on the driven system in parallel and in a spaced mode. Attractive force is generated in the butt joint process of the first electromagnetic coil and the third electromagnetic coil, and repulsive force is generated in the butt joint process of the second electromagnetic coil and the fourth electromagnetic coil. Due to the fact that the driving system and the driven system are respectively provided with each large electromagnetic coil and each small electromagnetic coil, in the butt joint process, the driving system gets close to the driven system at the system initial velocity under the action of the attractive force between the two large electromagnetic coils, and in the getting-close process, the butt joint velocity of the driving system and the driven system slows down under the action of repulsive force of the two small electromagnetic coils till the driving system and the driven system reach the balanced stationary state. Automatic and flexible butt joint of the driving system and the driven system is achieved without a control system.

An inertia measuring and controlling method for preventing the lateral turn-over of car includes such steps as scaling the Z-axis gyroscope to be zero deflection in stationary state, using the rotation speed measured by Z-axis gyroscope and the linear speed measured by traditional speed meter to calculate centrifugal acceleration, using the output of X-axis acceleration meter to calculate the components of gravitational acceleration on X-axis and Z-axis, the inclination, total inertial acceleration and the deflection, dividing the maximal critical inclination by said deflection to obtain the safety coefficient, and judging its value to calculate the control instruction.

The invention relates to a method and a system for testing the brake of a high-speed motor train unit. The method comprises the following steps of: in a stationary state of a motor train unit, simulating various speed signals, train air spring load signals and regeneration brake analog signals by utilizing the testing system; after various analog signals are received by the motor train unit, applying a brake action by a train brake system, and outputting brake information; and acquiring and analyzing brake information data and judging whether the design requirements for various performance indexes of the brake system are met. According to the method and the system, in the stationary state of the motor train unit, various performance indexes of the motor train unit brake system can be comprehensively and effectively tested through simulating the train speed signals and the train air spring load signals, wherein the performance indexes comprise brake response time of the motor train unit, logic motions of an anti-slip system, regenerated brake feedback, air brake, sequential coordination control of regenerated brake, and the like, so that intensive study of complete train debugging key technologies of the motor train unit is realized so as to achieve the purpose of all-around high-precision analogue simulation of the test of the brake system.

The application discloses a vehicle positioning method, a vehicle positioning device, terminal equipment and a computer readable storage medium. The vehicle positioning method comprises the followingsteps that a vehicle state after primary correction is acquired, wherein the vehicle state comprises speed, position, orientation and posture; the motion state of a vehicle is detected in real time; when the vehicle is detected in a running state, secondary correction is carried out on the vehicle state after the primary correction based on virtual constraint correction; when the vehicle is detected is in a stationary state, secondary correction is carried out on the vehicle state after the primary correction based on zero speed correction; and the vehicle is positioned based on the vehicle state after secondary correction. According to the scheme of the vehicle positioning method, the vehicle positioning device, the terminal equipment and the computer readable storage medium, on the premise of accurately judging the running state of the vehicle, parameters such as speed, position, orientation, posture and the like of the vehicle are correspondingly corrected according to different moving states of the vehicle, so that the positioning accuracy of the vehicle is improved.