87 results about "Ray launching" patented technology

A radio propagation path from a transmitting point to a receiving point is estimated accurately with a relatively small amount of calculation. A predetermined-size receiving area including the receiving point is set, radio propagation paths from the transmitting point to the receiving area is estimated by a ray launching method, object surfaces existing in the paths are extracted, and a radio propagation path from the transmitting point to the receiving point is estimated by an imaging method using only the extracted object surfaces.

An X-ray image detecting device has an FPD having a matrix of pixels each for accumulating signal charge in accordance with an X-ray irradiation amount. An imaging area of the FPD is partitioned into a plurality of divided sections A to I. Each of the divided sections A to I has a short pixel for detecting X-ray irradiation. In a synchronization control for controlling the FPD in synchronization with detection of a start of X-ray emission from an X-ray source, a control unit for controlling the X-ray image detecting device uses all the divided sections A to I. In an automatic exposure control for stopping the X-ray emission from the X-ray source by detecting a total X-ray irradiation amount, the control unit uses part of the divided sections, e.g. the short pixels of the divided sections that are judged to be opposed to an object in the synchronization control.

For ray tracing, methods, apparatus, and computer readable media provide efficient transmission and / or storage of rays between ray emitters, and an intersection testing resource. Ray emitters, during emission of a plurality of rays, identify a shared attribute of each ray of the plurality, and represent that attribute as shared ray data. The shared ray data, and other ray data sufficient to determine both an origin and a direction for each ray of the plurality, are transmitted. Functionality in the intersection testing resource receives the shared ray data and the other ray data, and interprets the shared ray data and the other ray data to determine an origin and direction for each ray of the plurality, and provides those rays for intersection testing. Rays can be stored in the shared attribute format in the intersection testing resource and data elements representing the rays can be constructed later. Programmable receiving functionality of the intersection testing resource can accommodate many ray types and other situations.

A system (170) and method (300) for ray launching is provided. The system can include a transmitter (110) for successively launching a plurality of rays, and a receiver (120) for receiving transmission rays and reflection rays. A controller (141) can be included for selectively adjusting an angular spacing and eliminating rays in successive launches to focus an energy on the receiver. A method (430) of terminating rays for reducing computational complexity is provided. A method (340) for ray weighting for increasing a computational speed of ray propagation is provided. In one aspect, a quality of service (108) can be determined at the receiver based on ray propagation.

An object of the invention is to obtain a high-speed and high-accuracy radio-wave propagation characteristic forecasting system in combination with the launching method by correctly estimating a diffraction phenomenon when a ray passes the vicinity of an edge of a structure. To estimate a radio-wave propagation characteristic in accordance with the ray launching method, when a ray passes the vicinity of an edge of a structure, a diffracted wave is generated at the edge if the distance between the edge and the ray is smaller than the radius of a ray spread. Thereby, it is easy to combine the ray launching method with the conventional ray launching method and it is possible to estimate a high-speed high-accuracy radio-wave propagation characteristic also considering a ray diffracted wave.

The invention relates to a double-channel security inspection device with multiple security inspection technologies. The double-channel security inspection device comprises two parallel movement inspection channels, ray transmitting devices and ray receiving devices. The movement inspection channels include the person movement inspection channel and the luggage movement inspection channel. An entrance of the luggage movement inspection channel is provided with a metal detector. The ray transmitting devices include the first ray transmitting device and the second ray transmitting device. The ray receiving devices include the first ray receiving device, the second ray receiving device and the third ray receiving device. The first ray transmitting device is arranged opposite to the first ray receiving device and the third ray receiving device, the second ray transmitting device is located below the luggage movement inspection channel, and the second ray receiving device is located above the luggage movement inspection channel. The double-channel security inspection device lowers the security inspection cost and the labor intensity of security inspection personnel and improves the inspection efficiency and accuracy.

A system for controlling a fluid flow includes a remote controlled fluid valve and a pedal unit. The remote controlled fluid valve includes a RCFV PCB configured to receive electromagnetic transmissions, a gear, an arms mechanism, flexible tube, and an engine for set in rotational motion the gear, wherein the rotational motion is transformed to linear motion by the arms mechanism, for pressing on the flexible tube and thus blocking the flexible tube to a fluid flow. The pedal unit includes a tact switch, and a PU PCB, wherein when the tact switch is pressed, the PU PCB is transmitting electromagnetic command signal, wherein the electromagnetic command signal is compatible with the electromagnetic transmissions. An additional option for operation of the remote controlled fluid valves is by means of a ray cut operating system, which also includes a ray transmitter, and a ray receiver and communication transmitter.

A radio wave propagation characteristic estimation apparatus includes at least a ray launching method calculation unit, an imaging method calculation unit, and a synthesis unit. The ray launching method calculation unit calculates a first piece of radio wave propagation characteristic estimation data in which a radio wave propagation characteristic from a radio wave transmission point to a building with a radio wave reception point is estimated, using a plan view data. The imaging method calculation unit calculates a second piece of radio wave propagation characteristic estimation data in which a radio wave propagation characteristic from the radio wave transmission point to the building with the radio wave reception point is estimated, using the vertical cross-sectional view data. The synthesis unit calculates pieces of indoor penetration data to the radio wave reception point within the building respectively for the first piece and the second piece, and synthesizes the pieces of indoor penetration data.

The invention discloses a container vehicle inspection system comprising an inspection channel; a movable engine room and arm rest which are used for installing a generation and receiving equipment; a ray unit which is used for generating scanning rays so as to scan a container passing through the main ray beams; a distance measurement sensor which is used for detecting the real-time displacement of the container; a container number identification system which is used for extracting the length of the container before the vehicle reaches the scanning area; and a microcomputer control unit which is connected with the distance measurement sensor, the container number identification system and the ray unit and used for controlling the ray unit to emit the scanning rays when the sum of the real-time displacement of the container measured by the distance measurement sensor and the length of the container equals to the preset distance. The time of ray emission can be accurately controlled in detecting the container vehicle so that only the container is ensured to be accurately scanned, radiation to the driver can be reliably avoided and the radiation pollution to the environment around the container can be reduced as much as possible.

An automatic gram weight detecting and adjusting system for producing needled non-woven products comprises a needling module, a data processing module, a data control module, an online gram weight detecting module, a drafting module and a wet-laying module, wherein the data processing module is connected with the data control module, the data control module is connected with the needling module, and the online gram weight detecting module is connected with the data processing module. The data processing module is connected with the data control module, and the data control module is connected with the needling module, the drafting module and the wet-laying module respectively. The online gram weight detecting module comprises a ray emitting part and a ray receiving part, wherein the ray receiving part receives data, then the gram weight of each point and average gram weight of a certain zone are calculated after the data is processed by the data processing module, and accordingly the data control module controls the needling module, the drafting module and the wet-laying module to perform corresponding actions. The automatic gram weight detecting and adjusting system is high in automation degree and greatly optimizes structures of existing products.

The invention provides a selective laser sintering testing method and platform. The testing platform comprises a sintering module and a detecting module, wherein the sintering module comprises a powder feeding unit, a sintering unit and a moving unit; the powder feeding unit is used for feeing powder into the sintering unit; the sintering unit is mounted on the moving unit and can move in all directions; the detecting module comprises a ray emitter, a ray receiving device, an air blower, a server and a communication module; and the detecting module can detect the quality of the single-layer sintered powder and the sintering quality between layers, so as to realize the comprehensive detection of the sintering quality. According to the selective laser sintering testing method and platform, the defect problems of selective laser sintering finished products can be found by detection, the thickness of the optimum sintering slice and the sintering effects of different powder materials are analyzed, the thickness of the optimum sintering slice and optimum powder material can be selected conveniently, and the sintering quality of products is improved.

A radio wave propagation characteristic estimation apparatus includes at least a ray launching method calculation unit, an imaging method calculation unit, and a synthesis unit. The ray launching method calculation unit calculates a first piece of radio wave propagation characteristic estimation data in which a radio wave propagation characteristic from a radio wave transmission point to a building with a radio wave reception point is estimated, using a plan view data. The imaging method calculation unit calculates a second piece of radio wave propagation characteristic estimation data in which a radio wave propagation characteristic from the radio wave transmission point to the building with the radio wave reception point is estimated, using the vertical cross-sectional view data. The synthesis unit calculates pieces of indoor penetration data to the radio wave reception point within the building respectively for the first piece and the second piece, and synthesizes the pieces of indoor penetration data.

The invention discloses a device and method for testing optical fiber perform refractive index distribution. The device comprises a computer, a DAC digital to analog converter (Digital to Analog Converter) connected with the computer, and a high-voltage emitter, wherein the DAC digital to analog converter is directly connected to a displayer; and the high-voltage emitter is connected with an X-ray transmitting tube. The front end of the X-ray transmitting tube is provided with a collimator; and the front end of the collimator is provided with a core rod to be tested. X rays emitted from the X-ray transmitting tube pass through the collimator and the core rod to be tested, and are received by a receiver arranged at the front end of the core rod to be tested; and after being processed by the DAC digital to analog converter and a DDC digital down converter (Direct Digital Control), the X rays are returned to the computer; and a program installed in the computer carries out calculation on the optical fiber perform refractive index distribution. The method comprises the specifically steps: measuring the intensity of the X rays emitted from the X-ray source and the intensity and incident angle of the X rays reaching a detector after attenuation of an optical fiber perform; moving different distances and angles to obtain a plurality of groups of data; and carrying out optical fiber perform image reconstruction based on distribution of attenuation coefficients.

The invention discloses a gamma-ray communication system and a gamma-ray communication method, the gamma-ray communication system comprises an information source, a modulation circuit, a gamma-ray emitting device, a gamma-ray shielding body, a gamma-ray detector and a demodulation circuit which are sequentially arranged along a signal transmission direction, the gamma-ray emitting device comprisesa radioactive source, and the radioactive source emits gamma rays; the information source converts the information signal into an input electric signal; the modulation circuit controls the gamma rayto be shielded or not shielded by the gamma ray shielding body according to the input electric signal to form a gamma ray signal; the gamma-ray detector receives the gamma-ray signal and converts thegamma-ray signal into an output electric signal; the demodulation circuit receives the output electric signal, demodulates the output electric signal and outputs the demodulated output electric signal. According to the invention, gamma rays are used for communication; the electromagnetic wave frequency range capable of being used for communication is expanded; and a new technical means is providedfor solving the communication problem in the electromagnetic shielding environment.

To shorten a required estimation time while keeping an estimation precision in an object environment given for estimating propagation characteristics with a ray launching method. In the case where a ray is propagated within a given observation area, and collides with a barrier residing on its path, a space in the vicinity of the ray is divided into a plurality of partial spaces until a predetermined condition is satisfied. The space in the vicinity of the ray that is considered to cause a degradation in the estimation precision is divided in reflection until there is less influence of degradation, whereby each of the subdivided partial spaces can be handled individually, so that the estimation precision of radio wave propagation characteristics can be made better than a conventional method. On the other hand, in the case where there is possibly less influence of degradation in the estimation precision, the space is not divided, whereby if a ray is radiated from a transmitting antenna coarsely, the total number of rays is reduced below that of the conventional method, so that a total calculation time taken for a propagation estimation can be shortened.

The invention belongs to the field of field intensity prediction, provides a novel simple matching type ray launching method, a receiving field calculation part is improved, the field intensity repetitive computation problem is avoided, and the field intensity prediction precision of a prediction model is finally improved. To this end, the technical scheme adopted by the invention is as follows: the weighted receiving-based simple matching type ray launching method utilizes a ray tubular body represents a multipath component, power is in uniform distribution in the tubular body, a path search algorithm of Ray Launching is utilized to complete search of a perpendicular incidence and reflection paths, a weighted receiving method is utilized to handle the process of using a receiving ball to screen a path in the vicinity of a receiving antenna, specifically weighted receiving is performed on the power carried by each effective ray, and a weight is a ratio of the intersection area of the tubular body that represents the ray and a great circle of the receiving ball to the cross sectional area of the tubular body. The weighted receiving-based simple matching type ray launching method provided by the invention is mainly applied to field intensity prediction.

The invention discloses a water purifier filter element with an intelligent monitoring function and a water purifier with the filter element, and relates to the technical field of water purifiers. The water purifier filter element with the intelligent monitoring function and the water purifier with the filter element comprise a filtering system and a control system. The filtering system comprises a multi-stage filter element, a first power supply module, a ray transmitting module, a ray receiving modul and a monitoring module; the ray emitting module and the ray receiving module are symmetrically arranged on the two sides of the multi-stage filter element, the monitoring module is connected to a water outlet of the multi-stage filter element in series, and the monitoring module is in bidirectional signal connection with the first communication module. The output ends of the ray emitting module and the ray receiving module are both in signal connection with the input end of the detection module, and the detection module is in bidirectional signal connection with the second communication module. Through the arrangement of the filtering system, the control system, a mobile terminal and a cloud server, the problems that the filter element cannot be replaced in time and the safe use of the water purifier cannot be ensured under the condition that the filter element is blocked due to the fact that the replacement time of the filter element of an existing water purifier cannot be accurately calculated are solved.

A control unit of an electronic cassette has a function of switching a power supply state to an ADC between an operating state corresponding to a first state in which first power is supplied and a non-operating state corresponding to a second state in which second power that is lower than the first power per unit time is supplied. The control unit reduces the number of ADCs in the operating state per unit time T in an AED operation for detecting the start of the emission of X-rays to be less than that in an image reading operation for outputting an X-ray image provided for diagnosis.

The invention belongs to the perspective imaging field, and relates to an object three-dimensional perspective imaging system and imaging method. The object three-dimensional perspective imaging system includes a ray transmitter (1), an objective table (2), a lens group (3), a mechanical support (4) and a processing end (5), wherein the ray transmitter (1) and the lens group (3) are respectively fixed at two ends of the mechanical support (4); the objective table (2) is movably arranged on the mechanical support (4); the objective table (2) is provided with a self-rotation motor (21); the processing end (5) is in electric-signal-connection with the ray transmitter (1) and the lens group (3); and the lens group (3) and the processing end (5) are in electric-signal-connection with the objective table (2). The object three-dimensional perspective imaging system has the advantages of being small in volume, being convenient to carry, being simple in operation, having no demand for frequent operation, being clear in imaging and being low in price.

The invention discloses a gamma-ray energy modulation communication system and method, and the system comprises an information source, a modulation circuit, a gamma-ray generation device, a gamma-rayreceiving device, and a demodulation circuit, and the gamma-ray generation device comprises N gamma-ray emission sources. The energy values of gamma rays emitted by the gamma ray emitting sources aredifferent, and the information source is used for converting an information signal into an initial electric signal from an analog signal; the modulation circuit controls the gamma ray generation device to emit gamma rays of 2N energy combinations according to the initial electric signal to form a gamma ray signal; the gamma-ray receiving device receives the gamma-ray signal, analyzes the energy ofthe gamma-ray signal and converts the gamma-ray signal into an output electric signal; the demodulation circuit demodulates the output electric signal and outputs the demodulated output electric signal, wherein N is a natural number greater than 1. According to the invention, wireless communication inside and outside an electromagnetic shielding environment is realized, more code element types can be provided, and the communication rate is improved.

The invention discloses a hub detection device. The hub detection device comprises a feeding-centering mechanism, a hub detection mechanism and a discharging-conveying mechanism which are arranged insequence, wherein the hub detection mechanism comprises a position adjustment mechanism for a ray emitter. The feeding-centering mechanism is used for centering a hub on an assembly line, so that thehub is positioned at the center position of the assembly line after entering the detection mechanism, and the stability of the hub feeding position is ensured. The hub detection mechanism is used forrealizing automatic clamping and rotation of the hub on the assembly line. The position adjustment mechanism is used for realizing defect detection of the hub. The multi-directional detection of the hub is realized by realizing the swinging of the ray emitter, so that high detection efficiency and wide detection range are achieved. A calibration mechanism is used for observing the definition of pinhole imaging by irradiation of steps of different thicknesses through the ray emitter in order to judge whether the ray emitter needs to be adjusted or not, so that the judgement result is high in accuracy; the situation of insufficient detection is reduced; and the detection accuracy of the ray emitter is ensured.

The invention discloses scanning inspection equipment and a scanning inspection system, relates to the field of security inspection, and aims to provide the scanning inspection equipment which is convenient to use and transfer and transport. The scanning inspection equipment comprises a moving device and a ray receiving device. The moving device comprises a walking part. The ray receiving device comprises an arm support assembly and a ray receiving assembly, the arm support assembly is borne by the walking part, and the ray receiving assembly is installed on the arm support assembly. The arm support assembly is configured to be switched between a scanning state and a transportation state. According to the scanning inspection equipment provided by the technical scheme, the ray receiving device can be expanded and retracted in two directions, so that the ray receiving device can be matched with the ray emitting device, a formed beam surface can scan an object to be detected from the two directions, and transition transportation is also easy.

The invention discloses far-infrared ray-launching radiating paint used for a meter housing. The far-infrared ray-launching radiating paint is prepared from the following raw materials in parts by weight: 50-54 parts of organic silicon resin, 4-5 parts of diethylin propylamine DEAPA, 2-3 parts of nano carbon, 12-15 parts of aluminum nitride, 6-8 parts of acrylonitrile, 4-6 parts of nano far-infrared ceramic powder, 1-2 parts of silicon carbide, 1-2 parts of nano vermiculite powder, 1-2 parts of nano mica powder, 2-3 parts of dibutyltin dilaurate, 1-2 parts of dioctyl ester, 1-2 parts of polyether glycol, 1-2 parts of tartaric acid, 24-26 parts of ethyl acetate, 1-2 parts of antioxidant DLTP and 4-5 parts of coalescing agent. By adding aluminum nitride and silicon carbide, the far-infrared ray-launching radiating paint used for the meter housing disclosed by the invention has high heat conduction velocity and good radiating effect; by adding the nano far-infrared ceramic powder, the nano vermiculite powder, the nano mica powder and the nano carbon, the paint has the function of launching far-infrared rays while increasing heat dissipation, and is beneficial to body health. Moreover, the paint uses the organic silicon resin as a substrate, and has excellent thermal oxidization stability.

The invention discloses a mineral aggregate recognition method, sorting equipment and a computer readable storage medium, the mineral aggregate recognition method is applied to the sorting equipment, and the sorting equipment comprises a rack, an annular waterfall type feeding assembly arranged at the top of the rack, a circumferential radiation ray transmitting and receiving device composed of a ray transmitting device and a ray receiving device and a discharging port. The ray emitting device is a circumferential radiation device. The method comprises the following steps: controlling the ray emitting device to emit X rays; extracting spectral features of the optical signals received by the ray receiving device; generating a spectral image according to the spectral characteristics; and inputting the spectral image into a mineral aggregate identification model to obtain an ore type output by the mineral aggregate identification model, and separating the mineral aggregate to a corresponding discharge port according to the ore type. According to the invention, the accuracy of mineral aggregate identification can be improved.