30results about How to "High precision tracking" patented technology

The invention discloses a refrigeration type common-caliber m medium / long-wave infrared double-waveband double-view-field dual-shift zoom optical system. The system comprises a first double-crescent positive lens, a second double-crescent positive lens, a first double-crescent negative lens, a third double-crescent positive lens, a second double-crescent negative lens, and a first light splitting prism for reflecting medium-wave infrared light and transmitting long-wave infrared light which are successively arranged along an optical axis. A reflection optical path of the medium-wave infrared light passing through the first light splitting prism is successively provided with a fourth double-crescent positive lens, a dual separate lens group, a first dual convex lens, a second dual concave lens, a sixth double-crescent positive lens and a seventh double-crescent positive lens, and a transmission optical path of the long-wave infrared light passing through the first light splitting prism is successively provided with an eighth double-crescent positive lens, a second dual convex lens, a third dual concave lens, a third double-crescent negative lens and a ninth double-crescent positive lens. The dual separate lens group is composed of a first dual convex lens and a fifth double-crescent positive lens. According to the system provided by the invention, a target image can be tracked, detected and captured in a high-accuracy manner.

Disclosed is a wireless positioning system and method that can perform a high-precision position tracking. The wireless positioning system includes a target device that is an object of wireless positioning, beacon devices and a processing unit. The beacon devices transmits wireless signals and sense reception time points of the wireless signals transmitted from the other beacon devices and the target device and received at time points after the transmission of the wireless signal. The target device receives the wireless signal transmitted from at least one of the beacon devices, and then transmits the wireless signal to the beacon devices. The processing unit obtains the position of the target device by calculating distances between the beacon devices and the target device using information about the reception time points of the wireless signals sensed by the respective beacon devices.

A fuel cell system (10) repeating first processing and second processing when the system is started. In the first processing, a control section (18) controls an electric power distribution section (42) so that electric power generated by a fuel cell stack (12) is supplied to accessories and a secondary battery (46). In the second processing, the control section (18) controls the electric power distribution section (42) so that electric power generated by the fuel cell stack (12) and electric power discharged from the secondary battery (46) are supplied to the accessories. An electric power calculation means (52) of the control section (18) calculates electric power generation by the fuel cell stack (12) and inputs an output command, representing electric power, into air compressor drive / control means (52). The electric power calculation means (52) gradually changes the magnitude of electric power generation by the fuel cell stack (12) at the time of transition between the first processing represented by the output command and the second processing.

A sample and hold circuit architecture samples using two capacitors that are cyclically switched between charge and discharge modes. The sample and hold circuit includes a buffer to receive an input signal to be sampled, a first sampling capacitor, a second sampling capacitor, and an amplifier. The first sampling capacitor is connected to the output of the buffer during the positive phase of a clock and across the feedback path of the amplifier during the zero phase of the clock. The second sampling capacitor is connected to the output of the buffer during the zero phase of the clock and across the feedback path of the amplifier during the positive phase of the clock. Neither the first sampling capacitor nor the second sampling capacitor is simultaneously connected to the buffer, the amplifier, or to each other.

The invention provides an envelope tracking power supply based on a class-E DC (direct current)-DC converter. The envelope tracking power supply comprises an envelope detection circuit, a frequency conversion control circuit and a class-E DC-DC converter, wherein the class-E DC-DC converter consists of a drive circuit, a class-E inverting circuit, a matching network and a resonant rectification circuit. According to the envelope tracking power supply, signal envelop is obtained through envelop detection, then the conversion from the envelop to frequency is carried out, and the output power of the class-E DC-DC converter is controlled through continuous frequency scanning or discrete frequency scanning, so that the tracking on the original signal envelop of output voltage is realized. Because the class-E DC-DC converter has high efficiency near the center frequency of the class-E DC-DC converter, works at a high frequency range, and has large slew rate, the envelope tracking power supply disclosed by the invention has the characteristics of high efficiency, high tracking precision and the like.

An image signal processing apparatus includes a detecting unit configured to detect a motion vector of a tracking point provided in an object in a moving image, a computing unit configured to compute a reliability parameter representing the reliability of the detected motion vector, a determining unit configured to determine whether the detected motion vector is adopted by comparing the computed reliability parameter with a boundary, an accumulating unit configured to accumulate the reliability parameter, and a changing unit configured to change the boundary on the basis of the accumulated reliability parameters.

A system for biometric staff management for a physical jobsite is disclosed. It uses a centralized reporting server and a multi-purpose computing device having authentication software and in communication with at least one biometric sensor. The jobsite workers who are users of said software authenticate into the system by using the at least one biometric sensor.

In the disclosed method, a primary formed body (G1) is formed by a bead ring (25) being fitted to the outside of both ends in the widthwise direction of a cylindrical body having: a inner liner at the innermost periphery comprising butyl rubber; a film that is layered to the outside periphery thereof and that comprises a thermoplastic resin or a thermoplastic elastomer composition; and a carcass material disposed at the outside periphery thereof. The inner liner is prevulcanized in the state wherein the center in the widthwise direction of the primary formed body (G1) is caused to bulge in the outer peripheral direction and is held by suction to the inner peripheral surface of a transferring / holding mold (9) that has a similar shape to the outer peripheral surface of a rigid inner mold (11). After the rigid inner mold (11) is interpolated in the primary formed body (G1), the suction of the transferring / holding mold (9) is suspended, the primary formed body (G1) is transferred to the outer peripheral surface of the rigid inner mold (11), a green tire is formed at the outer peripheral surface of the rigid inner mold (11), and this green tire is vulcanized.

The invention relates to a photovoltaic power generation physical reference control method, in particular to a control method adopting physical reference, and belongs to the field of photovoltaic power generation or optimal control methods. The photovoltaic power generation real object reference control method realizes the maximum output power of the photovoltaic cell. According to the first method, the open-circuit voltage and the short-circuit current of the reference photovoltaic cell are measured, the optimal reference resistance is calculated, and the working photovoltaic cell is controlled to reach the maximum output power. The second method comprises the following steps: measuring the open-circuit voltage and the short-circuit current of the reference photovoltaic cell, measuring the current at 80% of the open-circuit voltage and the voltage at 80% of the short-circuit current, calculating the optimal reference resistance, and controlling the working photovoltaic cell to reach the maximum output power. The third method comprises the following steps: measuring the open-circuit voltage or short-circuit current of the reference photovoltaic cell, scanning in a range of 50%-100% of the open-circuit voltage or short-circuit current, measuring the current or voltage at the same time, calculating the voltage and current or optimal reference resistance when the maximum output power is recorded, and controlling the working photovoltaic cell to reach the maximum output power.

The present disclosure relates to a method, device, electronic device and storage medium for artificial intelligence correction of heliostats. The method includes: reading sample data; training an LSTM network according to the sample data to obtain an LSTM network model; The data is input into the LSTM network model, and the correction data of the heliostat is output after being calculated by the LSTM network model; and the daily tracking operation parameters of the heliostat are corrected using the correction data of the heliostat. Heliostat sample data is efficiently learned using methods including long short-term memory artificial intelligence machine learning, allowing heliostats to track with higher accuracy.

The invention discloses a refrigeration type common-caliber m medium / long-wave infrared double-waveband double-view-field dual-shift zoom optical system. The system comprises a first double-crescent positive lens, a second double-crescent positive lens, a first double-crescent negative lens, a third double-crescent positive lens, a second double-crescent negative lens, and a first light splitting prism for reflecting medium-wave infrared light and transmitting long-wave infrared light which are successively arranged along an optical axis. A reflection optical path of the medium-wave infrared light passing through the first light splitting prism is successively provided with a fourth double-crescent positive lens, a dual separate lens group, a first dual convex lens, a second dual concave lens, a sixth double-crescent positive lens and a seventh double-crescent positive lens, and a transmission optical path of the long-wave infrared light passing through the first light splitting prism is successively provided with an eighth double-crescent positive lens, a second dual convex lens, a third dual concave lens, a third double-crescent negative lens and a ninth double-crescent positive lens. The dual separate lens group is composed of a first dual convex lens and a fifth double-crescent positive lens. According to the system provided by the invention, a target image can be tracked, detected and captured in a high-accuracy manner.

The invention discloses a welding track tracking method. A single laser beam is used to irradiate the weld along the length direction of the weld, and the laser beam is reflected to the photosensitive element through the weld and the areas on both sides of the weld to generate corresponding electrical signals. Using the measurement principle of single-point laser triangulation, calculate the distance between the laser generating device and the welding plate, and measure the average value of the entire laser beam distance, and judge whether the welding track is offset by the average value of the distance; when the welding track exists When offset, the signal is fed back to the position adjustment mechanism on the welding machine to adjust the welding track. The present invention utilizes the height difference when the ranging laser beam moves from one side of the weld to the other side, resulting in different average values ​​and a linear change interval, and judges the offset of the welding track according to the average height difference, which is in the process of measurement It will not be affected by external light, especially the intensity of welding arc light, the measured data is stable and reliable, and has the actual application conditions of welding tracking.

A human tracking apparatus and method capable of highly accurately tracking the movement of persons photographed in moving images includes: an image memory 107 that stores an inputted frame image; a human detecting unit 101 that detects persons photographed in the inputted frame image; a candidate registering unit 106 that registers already detected persons as candidates; a similarity index calculating unit 102 that calculates similarity indices indicating the similarity between the persons detected in the inputted frame image and the registered candidates for two or more types of parameters based on the stored frame images in relation to all combinations of the persons and the candidates; a normalizing unit 103 that normalizes the similarity indices; an integrating unit 104 that integrates the normalized indices for each combination of the detected persons and the candidates; and a tracking unit 105 that identifies a person the same as an arbitrary candidate based on the similarity indices.

Provided is a robot control device (5), capable of enabling a robot arm to follow an arbitrarily moving workpiece with high precision. The robot control device (5) includes: a feature point detection unit (51) configured to detect the positions of a plurality of feature points in the object from an image of the object captured by a visual sensor at a predetermined cycle; a position and posture calculation unit (52), based on the positions of the detected multiple feature points, update the respective motion equations of the multiple feature points in each predetermined period, and based on the respective positions of the multiple feature points calculated according to the updated motion equations , calculate the position or posture of the object; and the robot arm motion control unit (53), based on the calculated position or posture of the object, controls the motion of the robot arm (4) to follow the object.

A target attitude collaborative planning method and system for multi-level composite control of a spacecraft. The designed multi-level composite control system for a spacecraft includes a first-level control system for a star and a second-level control system for a load. The payload and the star are required to track the same target attitude during the large-angle agile maneuvering of the spacecraft. Due to the different control periods of stars, it is necessary to use the interpolation method to calculate the load control period Δt under the condition that the target attitude of the star platform is known. 2 target pose in time. First, the next control cycle Δt is calculated by the star attitude planning algorithm 1 The target pose θ within br . Then, load at a known Δt 1 The target pose θ in time br , using the Newton interpolation method to calculate each Δt 2 The target attitude θ of the load in time pr . In the case that the target attitude of the star and the payload at each time point is known, the spacecraft multi-level composite control system uses the star and payload two-stage PID controllers for attitude control to achieve high stability control of the spacecraft optical load.

Provided is a surveying instrument including a distance measuring light projector configured to project a distance measuring light to an object, a distance measuring light receiver having a photodetector configured to receive a reflected distance measuring light from the object, a tracking light projector configured to project a tracking light to the object, a tracking light receiver having a tracking photodetector configured to receive a reflected tracking light from the object, and an image pickup module configured to receive a background light, in which the distance measuring light projector and the tracking light projector include a first deflecting optical member, and the distance measuring light projector, the tracking light projector, and the image pickup module include a second deflecting optical member.

The present invention provides a measurement system, a measurement method and a storage medium for performing various measurements such as a tsunami based on the captured images by simultaneously photographing the same photographing target area with a plurality of cameras installed at different locations. The measurement system uses a photographic unit that captures images of the same photographic target area simultaneously through multiple cameras set at different locations, including mechanical control based on angle feedback and image measurement control based on image photography and image processing, and integrates mechanical control and The two-stage control unit of the image measurement control, in the mechanical control, roughly adjusts the line of sight of each camera so that each camera can capture the image within the shooting target area through the mechanical control based on the angle feedback obtained by the angle sensor. In the image measurement control of a part of the shooting target, each camera takes a photo and feeds back the captured image to precisely control the line of sight of each camera.

The invention provides an information processing apparatus and an information processing method for tracking movement of a user with high precision. The information processing apparatus estimates an action of a user who moves on a route formed by a plurality of segments by using a plurality of transportation means including at least a public transportation means. The apparatus comprises a first obtaining unit that obtains operation-related data which is data of operation services of the public transportation facility, and which represents a scheduled departure and arrival time for each segment; a second obtaining unit that obtains a scheduled movement route which is a set of a plurality of segments; a creation unit that obtains location information from a user terminal in a periodic manner, and creates movement track record data including the location information; and an estimation unit that estimates, based on the movement track record data and the operation-related data, a transportation means used by the user, and an entering and a leaving time thereof, with respect to a corresponding segment.