7results about How to "Valid inspection" patented technology

The invention discloses a shale rock mechanical characteristic analysis method, and relates to the technical field of petroleum and natural gas exploration, and the key points of the technical scheme are as follows: on the basis of rock physical experiment test and data analysis, designing experiments of organic geochemistry, physical properties, pore structures and mechanical parameters; conventional and imaging logging information is excavated by using an experimental depth; a continental facies shale strong heterogeneity physical property and pore structure logging evaluation technology, a continental facies shale gas layer different occurrence state gas content logging evaluation technology, a continental facies shale gas layer high-frequency phase change reservoir fracturing property logging evaluation technology and a continental facies shale gas layer logging comprehensive evaluation technology are developed and formed. And a well logging comprehensive evaluation technical system of the strong heterogeneous continental facies shale gas reservoir is established. By means of the method, shale gas reservoir distribution rule understanding can be formed, comprehensive combination of logging methods is achieved, field exploration and engineering application are effectively guided, and necessary logging evaluation technical support is provided for exploration and development of continental facies shale gas layers.

The invention discloses a construction device and a construction method for filling an anchor groove of an annular prestressed concrete lining of a hydraulic tunnel. The construction device includes a panel, a support rod, a tie rod and an end head; the two ends of the support rod are respectively connected to the end head and the panel, and an injection nozzle is provided at the upper end of the panel, and the side of the panel away from the support rod is closely fitted with the anchor groove; the end head includes a crossbeam and a sleeve fixedly connected to the crossbeam, the two ends of the tie rod are respectively connected to the crossbeam and the concrete lining, an internal thread is provided inside the sleeve, and an external thread is provided on the end of the support rod away from the panel, and the internal thread is meshed with the external thread, and the support rod is screwed in or out of the sleeve to generate different supporting forces on the panel. The advantages are: the construction device has the characteristics of high design accuracy, simple installation, and reusability; the construction method can intuitively and effectively test the filling quality of the anchor groove.

The application discloses a kind of multiple umbrella wing unmanned aerial vehicle semi-physical simulation systems, including host computer and multiple umbrella wing unmanned aerial vehicle controllers;The host computer is connected with each umbrella wing unmanned aerial vehicle controller;The host computer includes path planning module, unmanned aerial vehicle state acquisition module and first communication module;The path planning module is used to carry out path planning to the formation of multiple umbrella wing unmanned aerial vehicle, and the expected path of each umbrella wing unmanned aerial vehicle is output;The unmanned aerial vehicle state acquisition module is used to calculate the update value of unmanned aerial vehicle state according to the control amount output by umbrella wing unmanned aerial vehicle controller and unmanned aerial vehicle dynamics model;The first communication module is used to send the expected path, the update value of unmanned aerial vehicle state to corresponding umbrella wing unmanned aerial vehicle controller;The umbrella wing unmanned aerial vehicle controller is used to calculate control amount according to expected path and unmanned aerial vehicle state.Utilize the system, multiple umbrella wing unmanned aerial vehicle cooperative air-drop system can be calibrated, and the function and performance of each equipment of system are more directly and effectively verified.

The utility model discloses an inspection tool for preventing a bearing from lacking steel balls, which is characterized by comprising a steel ball supporting mechanism, a plurality of steel ball detection grooves, a plurality of steel ball detection mechanisms and a plurality of steel ball detection mechanisms, and is characterized in that the upper edge of a steel ball supporting mechanism body is annularly provided with a plurality of uniformly distributed steel ball detection grooves; a first vent hole is formed in the steel ball detection groove in a penetrating manner; a first hollow structure is arranged on the inner periphery of the steel ball supporting mechanism body, and a ventilation structure is coaxially arranged in a cavity of the first hollow structure. The upper surface of the ventilation structure is arranged in a first annular groove in the inner periphery of the steel ball supporting mechanism body. A plurality of second ventilation holes are formed in the upper surface of the ventilation structure; the periphery of the middle of the ventilation structure is fixed to the lower end of the steel ball supporting mechanism through a limiting part. The inner periphery of the ventilation structure is of a second hollow structure, and a guide groove connected with an external ventilation device is formed in the second hollow structure. According to the utility model, whether the number of the bearing steel balls is correct or not can be timely and effectively detected after the bearing ring is sleeved into the balls.

This invention relates to a rapid method for testing the sealing performance of a stepped sealing structure, comprising: assembling the stepped sealing structures together to establish a dimensional chain; converting the gasket dimension A3, which characterizes the sealing reliability of the connection parts of the stepped sealing structure, into a tightness measurement value A0 using the dimensional chain; calculating the theoretical range of the tightness measurement value A0 and determining its upper and lower limit dimensions; designing a gap rod, which includes a through end and a stop end; and measuring the tightness measurement value A0 using the gap rod. If the through end passes the measurement, it indicates that the gasket is not over-compressed; if the stop end does not pass the measurement, it indicates that the seal is properly compressed. This method can efficiently and reliably test the sealing reliability of a stepped sealing structure in a liquid rocket engine after tightening.

The invention relates to the technical field of building detection processing, in particular to a building inspection system and method based on building design, and the system comprises size measurement terminals which are used for obtaining the relative size data corresponding to the connection characteristics of a building modeling surface and the position data of each size measurement terminal; the comprehensive measurement platform is used for determining the time sequence relative deformation quantity of the connection characteristics according to the relative size data of each single modeling surface and determining the relative position change trend of each size measurement terminal according to the position data of each size measurement terminal; the matching checking module is used for determining an external interference vector of the connection characteristic according to the change trend of the relative position, and correcting a single time sequence deformation quantity according to the external interference vector; the correction output module is used for determining a design size correction value of the modeling surface according to the corrected time sequence deformation quantity; according to the method, the change trend of the connection characteristics of the building modeling surface is determined through inspection, correction is carried out in building design, and the design accuracy is improved.

A PCB assembly X-ray image automatic interpretation method based on deep learning comprises the following steps that firstly, image matching is carried out on an image to be matched and an X-ray image of a qualified PCB assembly, and an image to be detected is obtained; then, identifying a target element in the to-be-detected image by using the target detection network; segmenting and extracting each target bonding pad area by using a semantic segmentation network, and filtering a target bonding pad coarse segmentation result based on a target detection result; and finally, segmenting an abnormal target again from the filtered target pad segmentation result by using a maximum between-class variance segmentation method so as to obtain an abnormal target segmentation result. And calculating size parameters corresponding to different abnormal targets, and counting abnormal conditions. According to the invention, the automatic interpretation of the X-ray image of the PCB assembly is realized, the dependence on manpower in the quality detection process of the PCB assembly is reduced, and the situation that the quality detection of the PCB assembly has problems due to artificial reasons is reduced.