40results about How to "Many sampling points" patented technology

The invention discloses a real-time road condition acquiring, analyzing and back-feeding and intelligent transportation integrated service system, which is divided into two parts of an intelligent terminal host and a server-side server farm. The intelligent terminal host consists of electronic map application, GPS receiving, p2p data transmission, navigation, voice control, general message checking and a communication module; the server-side server farm consists of vehicle information and public TMC receiving, data integration and filtration, road condition analysis, road condition forecast, electronic map management and maintenance, dynamic information prompt, advertising publishing, data feedback and publishing, a server-side data base, parking space information collection and treatment, road section codes, road condition codes, road planning analog and a communication module. The invention has wide road condition information acquisition source, strong data handling capacity, can carry out highly-accurate real-time road condition analysis, road condition information forecast, path planning navigation, information inquiry and the like, and can be widely applied in the fields of road planning, intelligent traffic management, vehicle navigation, car scheduling and the like.

The invention discloses a panoramic video diamond sampling method and device. The method comprises the following steps of dividing a spherical surface into N=2K ring curved surfaces by using equally spaced latitudes according to a spatial resolution requirement, and orderly marking the ring curved surfaces as Oi; evenly dividing the ring curved surfaces Oi into Ti=2N-2-4M areas by using equally spaced longitudes; calculating and obtaining an average value of light rays in each area on the spherical surface as sampling values of sampling points corresponding to the area; and arranging the sampling values into one NxN matrix. The panoramic video diamond sampling method provided by the invention can enable the sampling points to meet the characteristics that the sampling points are more near the equator and the sampling points are less at the two poles on the spherical surface; the distribution characteristic of the number of the sampling points has the property of diamond distribution on a longitude and latitude graph, so that it is called the diamond sampling. The sampling method avoids sampling structure redundancy, so that the number of the sampling points is reduced and the amount of data after sampling is reduced under the condition that the same spatial resolution is achieved.

The invention discloses a high-speed railway user separation method based on signaling data of an A interface and an Abis interface. The method comprises the following steps of: acquiring all signaling data of the A interface and the Abis interface of a high-speed railway cell; establishing a high-speed railway resident user database, and determining high-speed railway resident users in the high-speed railway cell; acquiring call behavior characteristics of high-speed railway users which are not the resident users according to the acquired signaling data; and separating the high-speed railway users from high-speed expressway users and normal users according to the call behavior characteristics. By the method, user types such as a high-speed railway user, a resident user along a railway and a low-speed user along the railway can be effectively separated by establishing a high-speed railway user separation algorithm model, relevant functions of a high-speed railway road test simulation system can be realized according to the separated high-speed railway users, and uncertain problems of a small quantity of testing samples, high contingency and single testing terminal during the conventional high-speed railway simulation test can be effectively solved.

The invention discloses a panoramic video hexagonal sampling method and apparatus. The method comprises the following steps: dividing a spherical surface into N=6 annular curved surfaces by using latitude lines with equal intervals, making the annular curved surfaces as Oi in sequence, i = 0, and 1 ,... N-1, observing from the angle of the centre of sphere, and arranging the Oi from top to bottom; uniformly dividing the annular curved surface Oi into Ti areas by using meridians with equal intervals; calculating an average value of light within each area on the spherical surface to serve as a sampling value of a sampling point corresponding to the area; and arranging the sampling values in a matrix. By adoption of the sampling method, the redundancy of the sampling structure is avoided, and under the condition of realizing the same spatial resolution, the number of the sampling points is reduced, and the data size after sampling is reduced.

The invention relates to an instrument characterized by optical measurement method, which is an automatic flatness measurement method and device, especially a laser flatness automatic measurement system for measuring and inspecting thin steel plates, characterized in that: a laser wave shape measurement sensor (1) consists of semiconductor laser (7), light blocking plate (8), CCD camera (11), image acquisition card (13) and probe slider (10), etc., the image acquisition card (13) is inserted into the computer In (4), the probe slider (10) fixes the laser (7) and the CCD camera (11), and carries them to slide on the X-direction guide rail (14). The invention can measure the flatness of plates with various thicknesses, the measuring process is fully automated, the measuring precision is high, the speed is fast, the production line pause time is short, and the efficiency is high, and it can be flexibly used for product inspection of production sites and steel plate users.

The invention relates to on-line detection equipment for an automobile engine cylinder body and belongs to the technical field of on-line precision measurement. The equipment comprises a substrate platform; a motor fixed on the upper part of the substrate platform is connected with a lead screw guide rail through a coupler; an engine cylinder body detection workbench is arranged above the guide rail; and an engine cylinder body is placed on the detection workbench. A cylindricity measurement substrate is arranged on the substrate platform; a high-precision guide rail is arranged on the cylindricity measurement substrate; a cylindricity measurement adapter plate is connected with a guide rail sleeve; motors, high-precision air bearings and displacement sensors form four groups of cylindricity measurement mechanisms which are arranged on the adapter plate; and a cylindricity measurement motor drives the air bearings to rotate to drive the displacement sensors to rotate to perform measurement. A stepping motor drives the cylindricity measurement adapter plate to move up and down along the guide rail through a synchronous belt to realize the measurement of a cylinder hole of an engine. The substrate platform is fixedly provided with a cylinder height measurement substrate and is provided with the displacement sensor to realize the measurement of the cylinder body height of the engine.

The invention belongs to the field of optical measurement, relating to a multi-channel single photon counting measuring system based on digital lock phase de-multiplex. The system comprises a light source part, a measuring part, a digital-to-analogue conversion circuit, a digital circuit, a communication circuit and a computer, wherein the digital circuit outputs a digital sine to obtain a simulative sine wave through the digital-to-analogue conversion circuit, a laser modulator modulates the amplitude of a laser and couples a plurality of beams of modulated lasers with different frequencies into one beam to form into a light source of frequency division multiplexing, the light source irradiates an object to be measured, an emitted weak diffused light is captured by a single photon counting measurer, and an electric pulse is outputted through a circuit; and the digital lock phase arithmetic which is tightly combined with the single photon counting is realized by the digital circuit, and a mixed signal from different light resources is extracted in a separating way in a passageway of the measurer according to a preset parameter when receiving the electric pulse to obtain the intensity information of an emergent light which corresponds to each light source. The system shortens the measuring time, reduces the complexity thereof, improves the flexibility of the circuit, and reduces the measuring error.

The invention relates to the field of canal treatment and specifically relates to a canal water pollution superior microorganism in-situ ecological restoration method. The canal water pollution superior microorganism in-situ ecological restoration method comprises the steps of measuring parameters of a canal water environment, acquiring and detecting a water sample, acquiring a bottom mud of a canal, preparing a microorganism domestication primary liquid, preparing an enrichment culture medium, domesticating the microorganism, preparing a solid inoculant, putting the solid inoculant into the canal, and detecting whether the parameters of the water sample reach the standards within 10-30 days and 80-90 days starting from the time when the solid inoculant is put. According to the method, the construction and operation costs are low, the construction is convenient and environment-friendly, and does not affect the surrounding resident and environments, the management and the maintenance are simple, no secondary pollution is caused, the purification and restoration effects are good, the self-cleaning capacity of a canal water body is strengthened after the treatment for half a year to one year, local grasses and creatures naturally grow and propagate, an original biologic chain is restored, and the purpose of in-situ biological restoration of the water environment is fulfilled.