32results about "Geological detection using milimetre waves" patented technology

Provided is a method for identifying and monitoring a water-conducting path of a water inrush source based on a similarity simulation test. The method includes: collecting mining area data, determining lithology and a laying thickness of each rock stratum in a mining area, and performing similar material proportioning for the determined lithology of each rock stratum; and using an exothermic material as a layered material for the similarity simulation test. According to the method for identifying and monitoring a water-conducting path of a water inrush source based on a similarity simulation test, the exothermic material is used in the similarity simulation test, to enhance a temperature response capability of various rock strata in a test environment. Subtle temperature changes in the rock strata can be reflected more accurately in a water inrush process, and therefore, monitoring precision is improved.

A millimeter wave (MMW) display arrangement is envisioned to comprise a MMW camera that has an array of single pixel MMW detectors that capture MMWs and pipe MMW intensity data, of the captured MMWs, to a display screen where an MMW picture is assembled from a plurality of MMW sub-images from different portions of a scene scanned by the MMW camera. Each of the MMW sub-images comprise a plurality of contrast cells each of which are produced from a corresponding single pixel MMW detector. The MMW camera constructs the MMW picture by changing perspectives of the scene by way of either moving the camera or by shifting positions of a mirror between the camera and scene.

The application discloses a security check image acquisition method and device, a security check system and a storage medium, relates to the field of active millimeter wave human body security check technology, and can acquire high-quality millimeter wave human body security check images in real time. The method comprises the following steps: constructing target space distribution information of a target object surface contour according to distance information of a plurality of reflection points obtained by detecting the target object by using a ranging sensor; wherein the plurality of reflection points comprise points on the target object surface; determining a target amplitude value of a target position point in the target space distribution information according to echo signals obtained by detecting the target object by using a millimeter wave scanning array; the target position point is a point in a two-dimensional plane parallel to a scanning plane of the millimeter wave scanning array; the target amplitude value is used for representing scattering intensity of the target position point to electromagnetic waves emitted by the millimeter wave scanning array; and determining a two-dimensional image of the target object according to the target space distribution information and the target amplitude value.

A multi-lane elevated body temperature preventative scanning solution using GigE vision and tracking. This multi-lane solution is used to scan and track movement of people through an elevated body temperature scanning solution. When a person enters the frame, their identity (ID) is tracked within the field of view of the thermal camera in a designated scanning area from there it is monitored through the entry and exit of a premise to acquire a preventative temperature screening. Multiple machine learning and tracking routines are used together in this innovative offering.

A microwave barrier system is provided, including: a first microwave barrier including a first microwave transmitter and receiver, the first transmitter including an electrically tunable microwave generator and being configured to be operated at a selectable microwave frequency; and a second microwave barrier including a second microwave transmitter and receiver, the second transmitter including an electrically tunable microwave generator and being configured to be operated at a selectable microwave frequency, the system being configured to determine microwave operating channels in an available frequency range for microwave barriers by one of the receivers, and to assign a respective microwave operating channel to at least one of the barriers to reduce mutual interference between the barriers, the barriers further including respective communication devices to signal-couple the respective receiver with the respective transmitter to transmit a microwave operating channel for operation of the barriers from the receivers to the transmitters.

The disclosed MMW wave sensing camera calibration arrangement that generally includes a millimeter wave camera that uses an energy emission calibration panel as a calibration standard. The MMW camera is positioned opposite the calibration panel in the MMW camera's field-of-view. The calibration panel is held at a constant temperature to provide a standard emission of millimeter waves that is sensed by an MMW sensor to set or otherwise calibrate the MMW camera to a baseline emissivity value corresponding to the panel. The MMW camera is linked to a microprocessor and non-transient computer memory containing a calibration routine that is configured to reset the baseline only when nothing obstructs the calibration panel's field-of-view. A visual display is linked to the MMW camera and configured to display an MMW signature of a metal object that is disposed on a person's body when the person's body is in the field-of-view, the metal object concealed by clothing worn over the person's body.

A method for inspecting an individual using a dual-technology detection system having: a first mode of operation comprising the implementation of a first detection technology; a second mode of operation comprising the implementation of a second detection technology distinct from the first detection technology; and a third mode of operation comprising the absence of detection by means of the first and second technologies; the inspection method comprising: - the inspection (S2) of the individual according to the first mode of operation and the second mode of operation when the individual belongs to a first category; and - the inspection (S3) of the individual according to the first or second mode of operation when the individual belongs to a second category; and - the inspection (S4) of the individual according to the third mode of operation when the individual belongs to a third category.Figure for the summary: Fig. 4.

There is provided an object scanning apparatus. The object scanning apparatus may include a THz source emitting a THz beam; an optical system for directing the THz beam; a zone for inspecting objects wherein the optical beam interacts with the object; a motion device for changing the spatial or temporal interaction of the object and optical beam; at least one transducer, the at least one transducer including an imaging transducer for converting the optical beam energy after interaction with the object to an electronic image; and a processor for performing processing of the image for use in characterization of the object or its interior contents or composition.

The present application relates to a three-dimensional imaging method and apparatus, and a 3D imaging device. The method comprises generating 3D image information by capturing a 3D capture area containing a detected object using a depth camera; extracting a mask of the detected object from the 3D image information; determining an imaging area associated with the detected object based on the mask of the detected object; collecting data from a holographic data collection area containing the detected object by a holographic data collection device, generating holographic data; and performing image reconstruction on the imaging area based on the holographic data.

Imaging systems and associated methods are described. According to one aspect, an imaging system includes an antenna array having transmit and receive antennas, the transmit antennas emit electromagnetic energy from a plurality of different positions about a target imaging volume and the receive antennas receive reflections of the electromagnetic energy at the different positions, a transceiver configured to control the emission of the electromagnetic energy and to generate radar data that is indicative of the reflections of the electromagnetic energy received via the receive antennas; and processing circuitry configured to focus the radar data to provide first focused data in a first dimension, to focus the radar data in a second dimension to provide second focused data, and use the second focused data to focus the radar data in a third dimension to provide third focused data comprising an image of the target imaging volume.

The disclosed handheld camera device is a combination digital optical and millimeter wavelength (MMW) camera. In contrast to an optical camera, the MMW camera detects frequencies between 3-300 GHz making the MMW camera especially good at seeing metallic objects under garments, such as concealed weapons on a person or in a bag. The MMW camera can be arranged to point in the same field-of-view as the optical camera so that when an MMW image is taken it is automatically framed within the optical camera field-of-view. In certain configurations, the MMW camera takes a plurality of MMW images defined within an MMW field-of-view. In the case where the MMW field-of-view is smaller than the optical camera field-of-view, the multiple MMW images can be stitched together and overlaid on the optical image of the same scene to show a metallic object superimposed over a subject of interest.

A millimeter wave (MMW) display arrangement is envisioned to comprise a MMW camera that has an array of single pixel MMW detectors that capture MMWs and pipe MMW intensity data, of the captured MMWs, to a display screen where an MMW picture is assembled from a plurality of MMW sub-images from different portions of a scene scanned by the MMW camera. Each of the MMW sub-images comprise a plurality of contrast cells each of which are produced from a corresponding single pixel MMW detector. The MMW camera constructs the MMW picture by changing perspectives of the scene by way of either moving the camera or by shifting positions of a mirror between the camera and scene.

To provide a security inspection system with high throughput and high accuracy.SOLUTION: A security inspection system according to an embodiment comprises: an inspection device which uses radio waves for inspecting whether or not a subject owns a prescribed object; and a control device connected to a passage management device for performing determination regarding whether or not the subject has permission to pass. The control device transmits a second signal to the inspection device in response to receiving, from the passage management device, a first signal indicating the start of the determination. The inspection device starts the inspection in response to receiving the second signal.SELECTED DRAWING: Figure 1

The invention discloses a magnetic hook type appearance part structure of millimeter wave human body security inspection equipment. The magnetic hook type appearance part structure comprises a complete machine framework, a door plate assembly, a stand column assembly and a bottom fence assembly. The four door plate assemblies are connected to the two sides of the front face and the two sides of the back face of the complete machine framework through door plate hooks and door plate magnetic attraction assemblies correspondingly. The four stand column assemblies are connected to the four corners of the complete machine framework through the stand column hooks and the stand column magnetic attraction assemblies correspondingly. The bottom fence assembly is connected with the bottom of the complete machine framework through a bottom fence magnetic attraction assembly. The door plate, the stand columns and the bottom fence are all of a fixed connection structure combining magnetic attraction and hooks, and tool-free rapid and convenient disassembly and assembly can be achieved; according to the invention, the space required for deployment is obviously reduced, and the assembly, disassembly and maintenance processes are more convenient; the appearance part is formed by a composite material, so that the mass of the whole machine can be reduced; the noise reduction pieces are arranged on the door plate, the stand columns and the bottom fence, so that the sound insulation and noise reduction effects are good.

Embodiments of the present disclosure relate to a security scanner system (10). The security scanner system (10) has platform (20) with a standing surface (22) for the person (12) to be scanned and at least one panel (16, 18). The scanner system (10) comprises a millimeter wave scanner (24) located in the at least one panel (16, 18) that provides scanner data. The scanner system (10) has at least one sensor (30) in addition to the millimeter wave scanner (24), wherein the at least one sensor (30) is located in the platform (20) and provides sensor data. The scanner system (10) comprises an evaluation circuit (32) that is configured to evaluate both the scanner data and the sensor data during an evaluation process. The evaluation circuit (32) is configured to apply at least one predefined criterion on the data to verify whether an alarm is set. The scanner system (10) has an alarm device (34) that outputs an alarm in case the evaluation circuit (32) has set the alarm during the evaluation process. Further, a method of detecting an object (11) of interest at a person (12) to be scanned by using a security scanner system (10) is described.

A millimeter wave (MMW) display arrangement is envisioned to comprise a MMW camera that has an array of single pixel MMW detectors that capture MMWs and pipe MMW intensity data, of the captured MMWs, to a display screen where an MMW picture is assembled from a plurality of MMW sub-images from different portions of a scene scanned by the MMW camera. Each of the MMW sub-images comprise a plurality of contrast cells each of which are produced from a corresponding single pixel MMW detector. The MMW camera constructs the MMW picture by changing perspectives of the scene by way of either moving the camera or by shifting positions of a mirror between the camera and scene.

The invention relates to a method for inspecting an individual, comprising the following steps: - determining a category of the individual from a first, a second and a third category distinct from one another; and - depending on the category of the individual thus determined, implementing: - an inspection by generating a magnetic field and by emitting a radiant energy in order to form an electronic image when the individual belongs to the first category; - an inspection by generating a magnetic field only when the individual belongs to the second category, so that the individual transits into the system without stopping; and - non-inspection of the individual when the latter belongs to the third category, so that the individual transits into the detection system and is not inspected by the detection system.

The present application relates to a kind of three-dimensional imaging method and device, and three-dimensional imaging equipment.The three-dimensional imaging method includes: three-dimensional information acquisition step, by depth camera, the three-dimensional image information of three-dimensional shooting area containing detection object is generated by shooting;Mask extraction step, the mask of the detection object is extracted from the three-dimensional image information;Imaging area determination step, according to the mask of the detection object, the imaging area about the detection object is determined;Holographic data acquisition step, by holographic data acquisition device, the holographic data acquisition area containing the detection object is generated by shooting, and holographic data is generated;And image reconstruction step, based on the holographic data, the imaging area is reconstructed to image.

A three-dimensional imaging method, comprising: a three-dimensional information acquisition step (S11): photographing, by means of a depth camera (11), a three-dimensional photographing region compris

A system 100 for screening items of baggage for threat items comprises: a weight sensor 101 to collect data indicative of the weight of an item of baggage and objects within, a sensor array 103 to col

A microwave barrier system is described, comprising: a first microwave barrier (100) whose microwave transmitter unit has an electrically tunable microwave generator (600), wherein the first microwave barrier (100) is configured to operate at a selectable microwave frequency; and at least a second microwave barrier whose microwave transmitter unit has an electrically tunable microwave generator (600), wherein the second microwave barrier is configured to operate at a selectable microwave frequency; and wherein the first microwave barrier (100) and the second microwave barrier each have a microwave transmitter unit (104) and a microwave receiver unit (102); and wherein the microwave barrier system is set up by means of the respective microwave receiving unit (102), to determine microwave operating channels (210) in an available frequency range for microwave barriers;and the microwave barrier system is configured to assign a microwave operating channel (210) to each of the microwave barriers (100) of the microwave barrier system in such a way as to reduce mutual interference between the microwave barriers (110); and each microwave barrier has a communication unit configured to couple the respective microwave receiving unit (102) with the respective microwave transmitting unit (104), wired and / or wirelessly, by means of a signal, in order to transmit the microwave operating channel for the operation of the respective microwave barrier (100) from the microwave receiving unit (102) to the microwave transmitting unit (104).

Imaging systems and associated methods are described. According to one aspect, an imaging system includes an antenna array having transmit and receive antennas, the transmit antennas emit electromagnetic energy from a plurality of different positions about a target imaging volume and the receive antennas receive reflections of the electromagnetic energy at the different positions, a transceiver configured to control the emission of the electromagnetic energy and to generate radar data that is indicative of the reflections of the electromagnetic energy received via the receive antennas; and processing circuitry configured to focus the radar data to provide first focused data in a first dimension, to focus the radar data in a second dimension to provide second focused data, and use the second focused data to focus the radar data in a third dimension to provide third focused data comprising an image of the target imaging volume.

A method and a system of performing security inspection of human body based on millimeter-wave. The method includes: displaying, by a first display device, information related to a designated posture to a person to be inspected before the person enters an inspection channel defined by a millimeter-wave human body security inspection instrument, the designated posture being expected to be taken by the person when scanning the person with the instrument; guiding the person to enter the inspection channel and stand at a designated standing position within the inspection channel in a standing posture substantially complying with the designated posture; scanning, by the instrument, the person, to obtain millimeter-wave scanning data; and performing, by a workstation, a reconstruction of millimeter-wave scanning image of the person, a confirmation for the standing posture of the person, and a recognition of a suspected item of the person, based on the millimeter-wave scanning data.

A microwave barrier system is described, comprising: a first microwave barrier (100) whose microwave transmitter unit has an electrically tunable microwave generator (600), wherein the first microwave barrier (100) is configured to operate at a selectable microwave frequency; and at least a second microwave barrier whose microwave transmitter unit has an electrically tunable microwave generator (600), wherein the second microwave barrier is configured to operate at a selectable microwave frequency; and wherein the first microwave barrier (100) and the second microwave barrier each have a microwave transmitter unit (104) and a microwave receiver unit (102); and wherein the microwave barrier system is set up by means of the respective microwave receiving unit (102), to determine microwave operating channels (210) in an available frequency range for microwave barriers;and the microwave barrier system is configured to assign a microwave operating channel (210) to each of the microwave barriers (100) of the microwave barrier system in such a way as to reduce mutual interference between the microwave barriers (110); and each microwave barrier has a communication unit configured to couple the respective microwave receiving unit (102) with the respective microwave transmitting unit (104), wired and / or wirelessly, by means of a signal, in order to transmit the microwave operating channel for the operation of the respective microwave barrier (100) from the microwave receiving unit (102) to the microwave transmitting unit (104).

An apparatus of a patch-stub metal proximity sensor, the apparatus comprising: a planar dielectric substrate; a microstrip transmission line on a first surface of the planar dielectric substrate; a patch-stub on the first surface of the planar dielectric substrate substantially below the microstrip transmission line; a feedline on the first surface of the planar dielectric substrate substantially extending away from the microstrip transmission line, wherein the feedline electrically connects the microstrip transmission line and the patch-stub; and a ground conductor on a second surface of the planar dielectric substrate beneath the microstrip transmission line, wherein the planar dielectric substrate insulates the ground conductor from the microstrip transmission line, the patch-stub and the feedline.

Embodiments of the present disclosure relate to a security scanner system. The security scanner system has platform with a standing surface for the person to be scanned and at least one panel. The scanner system includes a millimeter wave scanner located in the at least one panel that provides scanner data. The scanner system has at least one sensor in addition to the millimeter wave scanner, wherein the at least one sensor is located in the platform and provides sensor data. The scanner system includes an evaluation circuit that is configured to evaluate both the scanner data and the sensor data during an evaluation process. The evaluation circuit is configured to apply at least one predefined criterion on the data to verify whether an alarm is set. The scanner system has an alarm device that outputs an alarm in case the evaluation circuit has set the alarm during the evaluation process. Further, a method of detecting an object of interest at a person to be scanned by using a security scanner system is described.

The invention relates to a security door operation optimization data acquisition method, a security door, a readable storage medium and a program product. A transmitting antenna sequentially serves as a working antenna for signal transmission; acquiring the actual receiving power of the receiving antenna, and recording the transmitting antenna corresponding to the actual receiving power as first data; judging whether the actual receiving power of the receiving antenna is greater than the saturated receiving power or not, and debugging a receiver corresponding to the receiving antenna when the actual receiving power of the receiving antenna is greater than the saturated receiving power, so that the actual receiving power of the receiving antenna is not greater than the saturated receiving power. And recording the debugging result of the receiver as second data.

Embodiments of the present disclosure provide a sparse multiple-input multiple-output array arrangement for active millimeter wave security inspection imaging, a human body security inspection apparatus, and a human body security inspection method. The sparse multiple-input multiple-output array arrangement includes two sets of transmitting antennas and a set of receiving antennas. The two sets of transmitting antennas include first and second sets of transmitting antennas, each set of transmitting antennas including a plurality of transmitting antennas arranged along a first direction. The set of receiving antennas includes a plurality of receiving antennas also arranged along the first direction and coplanar with the first and second sets of transmitting antennas, and is located between the first and second sets of transmitting antennas in a second direction perpendicular to the first direction.

Device that identifies a composition (310) of an object using a non-contact chemical sensor (100), the device comprising: at least one memory (103) containing computer-executable instructions; and at least one processor configured to read and execute computer-executable instructions, wherein the computer-executable instructions cause the at least one processor to: to recognize an object based on information supplied by a multitude of sensors; to control the transmission of a chemical detection signal from a non-contact chemical sensor (100) at the detected object; to identify a composition (310) of the detected object based on an attenuation of the chemical detection signal; to determine whether a path change is required, based on the identified composition (310) of the detected object; and to control one or more actuators to stop a vehicle (110) or to adjust the path of the vehicle (110) when a path change is required; further comprising the non-contact chemical sensor (100) configured to transmit the chemical detection signal, which has a millimeter wave signal; wherein the composition (310) comprises a gaseous composition (311), a solid composition (313) and a liquid composition (312); and wherein the computer-executable instructions cause the at least one processor to identify the composition (310) of the detected object on the basis of reflections of the chemical detection signal by comparing a profile of the reflections of the chemical detection signal with a spectral profile corresponding to the composition.

A system for screening items of baggage for threat items The system comprises: a weight sensor, configured to collect data indicative of the weight of an item of baggage and objects within when the item of baggage is in contact with at least a part of the weight sensor; a sensor array, configured to collect data indicative of the item of baggage and objects within the item of baggage; and a processor, configured to receive the data indicative of the weight of the item of baggage and objects within, and the data indicative the item of baggage and objects within the item of baggage collected by the sensor array, and derive a risk estimation from the received data.