280 results about "Surface distance" patented technology

A light-emitting element is provided having a layered structure composed of at least a light-emitting layer having a light-emitting region and a reflective layer for reflecting light emitted from the light-emitting region. Light emitted from the light-emitting region is extracted from a light-extracting surface distanced from the light-emitting region. A light-scattering portion is present in a part of the reflective layer.

Within a moving robot of narrow footprint, having quick traveling performance on a plane-surface, as well as, anti-tumbling function, and further being suitable for operations under coexistence with a human being, being able to travel coping with traveling situations on a level difference, etc.: in front and rear of main driving wheels 2 and 3, each being controlled through the inverted pendulum control, are disposed supporting legs 4 and 5, tips of which can be lifted up and down, wherein the tips of the supporting legs 4 and 5 are positioned to keep a predetermined distance between a traveling surface, when running on the inverted two-wheels travel, and the supporting legs 4 and 5 are fixed or either one in the fall-down direction is thrust out into the fall-down direction, so as to protect it from falling down. Further, upon the basis of detection information of floor-surface distance sensors 4e and 5e and side-surface distance sensor 4f, 4g, 5f and 5g, which are provided at the tips of the supporting legs 4 and 5, the robot senses an existence of a level difference and/or an inclined surface, so as to let the supporting legs to escape from the level difference and/or the inclined surface, and holds the position of gravity center thereof, stably, through other one of the supporting legs, being landed on the ground, and the main driving wheels 2 and 3; thereby enabling to travel over the level difference and the inclines surface.

The invention discloses a three-dimensional face recognition method and system. The method includes: image data of a to-be-identified target face are collected and a face key point is calibrated, wherein the image data of the face include a depth image of the face and a color image of the face; according to the calibrated depth image of the face, three-dimensional face reconstruction is carried out to obtain a three-dimensional face reconstruction model; surface distances between a preset number of key points in the three-dimensional face reconstruction model are calculated and a surface distance matrix is generated; the surface distance matrix is transformed into a face standard model; a to-be-identified feature vector is extracted from the face standard model; and the to-be-identified feature vector is compared with existing feature vectors in the preset face feature database to realize three-dimensional face recognition. The three-dimensional face recognition method has advantages of high recognition accuracy and fast recognition speed.

The invention provides a double passive vision sensing detecting device in GMA material increase manufacturing and a detecting method thereof. The device comprises a working platform, a base plate, a welding gun, a spray nozzle, a width vision sensor, a width composite light filtering system, a height vision sensor and a height composite light filtering system, wherein the width vision sensor is used for monitoring width information of a tail part of an accumulating weld pool; and the height vision sensor is used for monitoring a distance from a spray nozzle to the tail part of the accumulating weld pool. The detecting method comprises a process of processing accumulating dimension images and a process of calibrating the sensing system. According to the double passive vision sensing detecting device in GMA material increase manufacturing and the detecting method thereof disclosed by the invention, accumulating width in GMA material increase manufacturing and feature information of a distance from the spray nozzle to the upper surface of a cladding layer can be monitored simultaneously, so that the real-time detecting problem of cladding width and cladding height in GMA material increase manufacturing is effectively solved; and real-time monitoring and closed-loop control for follow-up accumulating dimension are realized by extracting the feature information of accumulating dimension, so that reliable technical support is provided for real-time control of accumulating quality in GMA material increase manufacturing.

An inflation device for introducing gas into inflatable webs of the type comprising a pair of juxtaposed film plies and a pair of opposing film edges, the inflation device including a body having a longitudinal dimension, a transverse dimension, and a web-contact region in which the inflation device makes contact with opposing surfaces of the juxtaposed film plies as gas is introduced into the inflatable web, the body having at least one increase in peripheral transverse surface distance along the longitudinal dimension of the body, and a passage within the body through which gas may flow, the passage having a termination point within the web-contact region to form an inflation zone therein.

A surface analysis apparatus and a method for compensating for mechanical vibrations and drifts in a surface analysis instrument are disclosed. A probe that is sensitive to the distance between the probe and a sample surface provides a probe signal. The probe signal contains information about the surface properties and noise due to changes in the probe-surface distance. A sensor measures a displacement between a probe and the sample surface. The sensor is substantially insensitive to the surface properties measured by the probe. The displacement measurement can be used to compensate for the noise in the probe signal.

The invention relates to a single counterweight type automatic levelling spreader and a using method thereof, belonging to the technique of loading-unloading winching device. The single counterweight type automatic levelling spreader comprises a bearing spreader, an automatic levelling device, an initial bottom surface distance measurer, a target bottom surface distance measurer and a computer, wherein the automatic levelling device is mounted on the bearing spreader and is provided with counterweight blocks; the initial bottom surface distance measurer and the target bottom surface distance measurer are respectively located below an initial bearing bracket and a target bearing bracket; the computer communicates with both the bottom distance measurers, calculates the leveling inclination angle of the loading butt joint surface according to information measured by the initial bottom surface distance measurer and the target bottom surface distance measurer and based on the input structural size of the loading butt joint surface, calculates control signals, transmits the control signals to the automatic levelling device, controls the position of the counterweight block in the automatic levelling device and keeps the initial bearing bracket and horizontal target bearing bracket of the loading butt joint in the horizontal state so as to realize precise and easily damaged hoisting. The invention has the advantages of high precision, fast speed, safety and reliability.

A distance-controlled tunneling transducer comprises a plurality of tunnel tips arranged in an array at a tunneling distance from an electrically conductive surface of a storage medium. Each tip is attached to a respective cantilever beam permitting the distance between each tip and the surface to be individually pre-adjusted electrostatically. Arranged in juxtaposition with each cantilever beam is an active control circuit for adjusting the tip-to-surface distance during operation of the storage unit, thus preventing crashes of the associated tip into possible asperities on the surface of the recording medium. Each control circuit is designed such that its operating voltage concurrently serves to pre-adjust its associated cantilever beam and to maintain the tip-to-surface distance essentially constant.

The long term monitoring sensor for corrosion of steel bar in steel concrete member consists of electrode rods in the same length, pedestal, wires and sacrificed anode. The electrode rods are fixed in the sensor pedestal in stepped form, and the wires are connected through leaf springs to the anode and cathode of the electrode rods. During construction, the monitoring sensor is embedded into the concrete for subsequent regular data acquisition. In the case of finding out corroded steel bar in some electrode rod, the steel bar is protected via the cathode protector. The present invention can perform non-destroying detection of the steel bars in different depth and determine the frontal surface distance of the invading corrosive medium.

A system and method utilizes an image analysis approach for controlling the collection instrument-to-surface distance in a sampling system for use, for example, with mass spectrometric detection. Such an approach involves the capturing of an image of the collection instrument or the shadow thereof cast across the surface and the utilization of line average brightness (LAB) techniques to determine the actual distance between the collection instrument and the surface. The actual distance is subsequently compared to a target distance for re-optimization, as necessary, of the collection instrument-to-surface during an automated surface sampling operation.

The invention relates to a portable system and a method for measuring friction coefficient, belonging to the technical field of the measurement of the friction coefficient. The method comprises the following steps: adopting a force sensor to synchronously measure a normal force and a friction force of a friction measuring head passing a measuring surface and displaying the normal force and the friction force in real time; coating septum materials on a front section and a rear section a distance away from the measured surface, dividing the measured surface into a first septum material section, a measuring surface section which is not coated by septum material and is to be measured and a second septum material section along a motion trail direction of the friction measuring head, and causing the obvious change of the friction force and the normal force because the obvious difference of height differences or materials is formed on the measured surface; and calculating speed under the condition that the speed is unchangeable on the distance by considering the continuity of motion speed and the short distance of the measured surface. The method can be used for measuring the friction coefficient of large-scale workpieces, irregular surfaces and biological surfaces and can realize the portability of equipment.

The invention discloses a road congestion recognition visualization method based on DBSCAN+. According to the method, first, a large amount of uploaded data of OBD vehicle terminals of floating cars in a city is preprocessed and cleaned; slow travel GPS track point data in a unit time period is extracted according to instantaneous velocities of the floating cars; DBSCAN+ algorithm parameters are set, and initial class cluster blocks in a slow travel region are acquired through parallel clustering of extracted data points; by calculating surface distances among all the data points in each classcluster block respectively, the two farthest points in each class cluster block are found out, and line segments are fitted; map-matching deviation rectification is performed on the fitted line segments according to a topological relation among all road segments in an actual road network; and last, by calculating travel distances of different vehicles in the unit time period in each class clusterblock respectively and calculating average travel distances synthetically, the congestion degrees of all the class cluster blocks are judged and expressed in different colors for differentiation andvisualization. The method can adapt to large-scale city taxi OBD terminal GPS track data, brings convenience to real-time recognition of city road congestion through taxi running conditions and achieves a good visualization effect.

The invention relates to a mountain restoration system based on a sponge ecosystem. The mountain restoration system based on the sponge ecosystem is characterized in that the position, away from a slope, of the upper surface of a mountain is provided with a flood intercepting trench; a planting base material bearing body is laid on the slope; the lower end portion of the slope is provided with a flow guiding slope with the gradient being 4%; and the flow guiding slope is adjacently connected with a rainwater treatment unit. The invention further discloses a construction method of the mountainrestoration system based on the sponge ecosystem. The construction method includes the following steps that firstly, the slope is trimmed; secondly, anchoring rod hole planning and lofting are performed; thirdly, an anchoring rod is installed and the anchoring rod is closed; fourthly, a galvanized steel wire net is anchored; fifthly, a spraying pipe and a draining pipe are fixed; sixthly, the slope is moistened; seventhly, a spraying seeding planting base material containing seeds is configured; eighthly, a spraying seeding device is used for spraying the planting base material; and ninthly, aseedling growing device is maintained and managed. The mountain restoration system based on the sponge ecosystem has the beneficial effects of being high in mechanical degree, uniform in spraying, high in earth surface covering speed, low in cost, capable of meeting the requirement of fast making the mountain become green again, easy to popularize and the like.

The invention discloses a BDCH-DBSCAN-based taxi passenger-carrying hotspot identification method. The method comprises the steps of firstly providing a large amount of taxi GPS data tracks, and deleting interference data from the data tracks; extracting get-on data points and get-off data points in the GPS data tracks; performing multi-thread block clustering on the extracted data points, separating out core points by adopting a DBSCAN algorithm, obtaining a neighbor node set of the core points, and performing cluster expansion operation on the core points, wherein cluster expansion refers tooperations of performing class cluster division on neighbor points of the core points and adding the neighbor core points with a number greater than a minimum cluster point number and domains of theneighbor core points into clusters; and according to a curved surface distance between two points, finding out neighbor nodes in a scanning radius, finding out a maximum density point in each clusterto serve as a cluster center, and cyclically clustering cluster center sets again until the set quantity and the precision meet the requirements. According to the method, large-scale data can be adapted; class cluster centers are convenient to identify; the multi-thread clustering speed is high; and the accuracy is high.