32results about How to "Accurate and reliable detection results" patented technology

The invention discloses drilling geophysical prospecting advanced detecting device. A first probe wire and a second probe wire are arranged inside a probe of the device, one end of the first probe wire is connected with the signal input end of a first electric brush ring, the other end of the first probe wire is connected with the high-potential signal output end of a first signal sending module, one end of the second probe wire is connected with the signal input end of a second electric brush ring, the other end of the second probe wire is connected with the high-potential signal output end of a second signal sending module, a metal conductive rod is connected with a zero-potential interface of the first signal sending module and a zero-potential interface of the second signal sending module respectively, the current signal input end of a first signal receiving module is communicated with the first probe wire, the current signal input end of a second signal receiving module is communicated with the second probe wire, and the signal output end of the first electric brush ring and the signal output end of the second electric brush ring are connected with the inner wall of a drill stem. The drilling geophysical prospecting advanced detecting device can conduct fine and effective detection prediction on harmful geologic bodies of eutrophic water and water conduction channels around drilled holes of tunnels and roadway heads.

The invention relates to a continuous reflection type laser detection device which comprises a laser emitter, a laser receiver, an emitted light reflector and a received light reflector, wherein the emitted light reflector is used for adjusting the direction of laser beams emitted by the laser emitter and leading the laser beams to be reflected to a specified point on the ground to erect a reflected laser source, the received light reflector is used for changing the direction of the laser beams irradiated in by the reflected laser source and leading the laser beams to be irradiated into the laser receiver, and the laser receiver processes and identifies the received laser beams and emits detected normal signals or alarming signals. The detection device is arranged on the inner side of each shielding gate of the high speed railway, the inter-city railway or the subway and emits laser beams to the edge of a station platform, the laser beams scan the full range of riding channel areas along with opening to closing of the shielding gate, and the alarming signals are sent if people are clamped or obstacles block the shielding gates. The continuous reflection type laser detection device is simple in structure, convenient to install and debug, accurate and reliable in test results, strong in photo-electromagnetism interference resistance and adaptive to ground normally-used reflection objects.

The invention provides a moving area detection method and a moving area detection device. The method comprises the following steps of: performing edge detection on a current image frame and determining pixel points, having luminous flux values greater than a preset luminous flux threshold value, in the current frame; dividing each image frame into a plurality of macro blocks with an identical size, calculating a first correlation coefficient between each first macro block of the current image frame and a second macro block at a corresponding position of the previous image frame of the current image frame, and calculating a second correlation coefficient between each macro block of the current image frame and a third macro block at the corresponding position of the next image frame of the current image frame; calculating absolute values of differences between the first correlation coefficients and the corresponding second correlation coefficients and determining the first macro blocks having the correlation coefficient difference absolute values are greater than a preset correlation coefficient threshold; and determining an area where the intersection of sets of the determined pixel points and the first macro blocks as a moving area detection result. Through the method and the device, the accurate detection of a moving area in the image frame is realized by utilizing the characteristics of the moving area and unmoving area in the image frame.

Disclosed is a detection method for a deep layer impurity element. The detection method comprises the steps of step S1, providing a to-be-detected wafer with a function film layer; step S2, representing the depth of the impurity element of the to-be-detected wafer through a secondary ion mass spectrometer; step S3, thinning the functional film layer until the distance from the depth of the impurity element to the surface of the to-be-detected wafer belongs to a detection depth range of an inductive coupling plasma spectrometer; and S4, detecting the content of the impurity element through the inductive coupling plasma spectrometer. According to the detection method, the depth of the impurity element of the to-be-detected wafer is represented by the secondary ion mass spectrometer; then the thickness of the functional film layer is thinned until the distance from the depth of the impurity element to the surface of the to-be-detected wafer after the functional film layer is thinned belongs to the detection depth range of the inductive coupling plasma spectrometer; and finally, the content of the impurity element is detected through the inductive coupling plasma spectrometer. Therefore, a sampling cone is not blocked in the sampling process; and meanwhile, the detection result is accurate and reliable.

The invention discloses a method for determining the position of a shallow buried coal field fire source through surface anomalies. The method comprises the specific steps of surveying the surface anomalies, determining an abnormal area, arranging probe holes and verifying the positions of the probe holes. In the process of surveying the surface anomalies, the coordinates, elevation and position of a survey point are described through surveying of the coal field surface anomalies, handheld GPS positioning, an infrared imager, description of field pictures and temperature measurement of a ground temperature meter. The method is low in cost and fast and accurate in positioning, two fire source detecting methods are comprehensively applied, surface anomaly feature detection is combined with probe hole verification, and a fire source detection result is more accurate and reliable. The dimensionality of a traditional fire area detection result is expanded through the probe holes, detection drilled holes are used for verification, the depth of the fire source can be determined through temperature in the drilled holes and other information, the three-dimensional position of the fire source can be determined, the effect of fire area treatment can be improved, and treatment time is shortened.

The present invention provides a detection method for a congested section on an expressway based on multi-source traffic data fusion. In the method, three kinds of traffic data including identification data of an expressway path recognition system, flow data of a toll station in a networked toll system and GPS trajectory data of long-distance and dangerous goods key vehicles are pretreated, and multi-level road network division for the road network of the expressway is performed. By using the three kinds of pretreated traffic source data and the divided road network, the data of the first level road network, the second level road network and the third level road network is matched. By using the three levels of matched data, the multi-level traffic condition of each basic section on the expressway is calculated with a hierarchical congested section detection framework. The method makes the congested section detection result more reliable, can detect the multi-level congested section distribution result, can reduce the calculation amount of the data and improves the detection speed.

The invention belongs to the field of environmental geophysical exploration technologies and discloses an induced polarization method for heavy metal sewage detection. According to the method, a current emission anode and a depth-exploring current emission cathode are arranged in a heavy metal sewage pool and located at a certain position in a transverse distance away from a detection point, a polarizability receiving point is determined at the other side of an induced polarization device for heavy metal sewage detection, and a non-polarization anode and a non-polarization cathode are symmetrically arranged at the left side and the right side of the polarizability receiving point; a current emission source, a constant current controller and an induced polarization instrument are connectedwith a power source, an induced polarization measurement mode is adopted, and detection at the detection point is performed; the polarizability is measured point by point in the moving process; and then plane and section measurement is performed till measurement of all detection points on a measuring line is completed. The measurement method is simple in structure, convenient to operate, reasonable in design, stable and reliable in detection result and capable of being widely applied to the induced polarization exploration work in industries, mine engineering and other heavy metal sewage treatment fields.

The disclosure provides a rapid detector fixing device for tunnel advanced geological prediction. The rapid detector fixing device comprises a detector anchoring module, a detector attitude detectionmodule and a propelling module. The detector anchoring module comprises a shell, a position for placing a detector is reserved in the shell, and a fixing mechanism is arranged on the shell and used for anchoring an anchor rod and the detector. The detector attitude detection module is arranged in the shell and comprises a displacement monitoring module and a positioning module which are respectively used for detecting the displacement change and position of the detector. And the propelling module comprises a mechanical arm with at least degree of freedom and a driving mechanism, and the driving mechanism drives the mechanical arm to act, so that the shell is attached to the surrounding rock, and the detector is arranged and anchored.

The invention provides a method and apparatus for detecting link states. In the method and apparatus provided by the invention, a source device cancels the aggregation configuration of a detected link, so that an upper layer entity of the device has visibility for each physical port. Under this condition, each physical port is associated with at least one logical source port number, a link detection message is sent to a pre-associated destination device of service from the physical port through each associated logical source port number, and the source device can perform accessibility detection on each physical link utilizing the physical port as one end and utilizing the pre-associated destination device as the other end, thereby guaranteeing that the upper layer entity of the device reliably knows the accessibility of each physical link.

The invention discloses a method and a system for alarming aging of a battery on a server. The method comprises the following steps: determining a current-limiting resistor in a battery power supply line of the server; obtaining a voltage difference between two ends of the current-limiting resistor; calculating the residual service life of the server battery according to the voltage difference; judging whether the remaining service life is lower than a set service life threshold value or not; if so, sending out an alarm. The system comprises a current-limiting resistance determination module,a voltage difference acquisition module, a remaining service life calculation module, a judgment module and an alarm module. According to the invention, the accuracy and reliability of the detection result of the aging state of the service battery can be effectively improved.

The invention discloses a complex urban environment water-rich karst fine exploration method, which belongs to the technical field of underground karst exploration. The method comprises the following steps of carrying out exploration drilling in a detection area, and building a detection profile; for the same detection section, a cross-hole resistivity CT method and a cross-hole elastic wave CT method being adopted for detection in sequence; determining the spatial distribution and position of karst fissures by a cross-hole resistivity CT method, and delineating the range and boundary information of anomalous bodies by a cross-hole elastic wave CT method; and repeating steps till all detection sections are detected.

The invention discloses a bag detection device of a packaging machine, and belongs to the technical field of packaging equipment. The bag detection device comprises a blowing pipe, one end of the blowing pipe is provided with two blowing ports, and the two blowing ports are symmetrically arranged on the side walls of the blowing pipe. The bag detection device further comprises air detection mechanisms, each air detection mechanism comprises an electric heating plate and a temperature sensor, each electric heating plate comprises a substrate and electric heating wires, a partition plate is arranged between each electric heating plate and the corresponding blowing port, ventilation openings are formed in the portion, corresponding to the corresponding blowing port, of each partition plate, afixing plate is arranged on the side, far away from the corresponding blowing port, of each electric heating plate, the bottom of each fixing plate and the bottom of the corresponding partition plateare connected through a connecting plate, each electric heating plate is fixed to the corresponding connecting plate, the electric heating wires are arranged on the side, facing the corresponding partition plate, of each substrate, and a probe of each temperature sensor directly faces the corresponding electric heating wires.

The invention discloses an automobile tail door control method and device, a storage medium and electronic equipment, and relates to the technical field of automobiles. The method comprises the following steps: acquiring position information of a digital key relative to an automobile tail door; acquiring a detection result of a first UWB radar, wherein the detection result of the first UWB radar is a result obtained by detecting parameter information of an electromagnetic environment of a detection area by the first UWB radar; and on the basis that the position information meets the preset distance and the change condition of the detection result, it is determined that a kicking action exists in the detection area, and the automobile tail door is controlled to be opened. According to the method, the automobile tail door can be automatically opened, the two hands of a user are liberated, the control result is accurate, and the cost is low.

The invention relates to a detection system and method for determining spatial position information of an underground deeply-buried pipeline. The detection system utilizes an artificial seismic source or a mechanical seismic source to excite an elastic wave signal to the deeply-buried pipeline; an observation hole is formed in the range of 2-5 m beside the far end of the estimated deeply-buried pipeline; a plurality of detectors which are arranged at equal intervals are placed in the observation holes, and the plurality of detectors are connected with corresponding seismographs respectively. According to the detection method, an in-hole detector is adopted to receive an elastic wave signal from a target pipeline, the first arrival time of the detector signal is analyzed through a multi-channel seismograph, the burying depth of the pipeline and the distance between the pipeline and an observation hole are calculated, and then the spatial position of the deeply-buried pipeline is determined. The method can be suitable for spatial position detection of underground metal pipelines and nonmetal pipelines with various burying depths, the detection means is simple and practical, the detection result is accurate and reliable, and no damage is caused to the target pipeline.

The invention relates to a strip reinforcement evaluation method. The method uses a geological radar detection method, and includes the following steps: (a) determining a composite dielectric constant; (b) carrying out geological radar detection, wherein detection lines are arranged on the ground of a to-be-detected area for geological radar detection, and a radar detection graph is made accordingto the composite dielectric constant obtained in the step (a); (c) carrying out geological radar data processing, wherein original collected data in the radar detection graph are processed to obtaina clear reflective interface; and (d) evaluating strip reinforcement bodies according to the radar detection graph. According to the detection method in the invention, detection is non-destructive, detection costs are low, detection speed is high, detection sections are continuous, and a detection result is accurate and credible. The method has economical efficiency.