225results about How to "Reduce hidden dangers" patented technology

The invention discloses an underwater pile foundation detection method, system and device and a storage medium, relates to the technical field of pile foundation detection, and solves the technical problems that information of multiple key parameters cannot be effectively integrated, and a scientific and reasonable comprehensive evaluation method for accurately judging the overall state of a pile foundation is lacked. According to the method, multi-aspect parameters are comprehensively obtained and deeply analyzed, a complete pile foundation quality evaluation system is constructed, and after abnormal points are accurately positioned in a propagation velocity analysis link, the amplitude abrupt change, adjacent point difference discreteness and the abnormal area length proportion are synthesized by means of calculation and assignment of the velocity difference and the abnormal area length proportion and amplitude analysis, so that the quality of the pile foundation is evaluated. According to the method, the amplitude anomaly characteristics and range of a pile body are detected in an all-around mode, the local non-uniform defect detection precision is remarkably improved, in the frequency analysis process, frequency locking anomaly points are sent through comparison, regional analysis assignment is combined, the influence of the frequency locking anomaly points on the pile foundation quality is fully considered, and finally the pile foundation state value is calculated and matched with the state interval to generate information.

The grading hoop for well cementation comprises a fixed sleeve and a movable plate, slurry outlet holes are symmetrically formed in the middles of the two sides of the fixed sleeve, the upper end of the inner side face of the fixed sleeve is symmetrically connected with embedded plates, the lower ends of the embedded plates are connected into embedded grooves in a sliding mode, the embedded grooves are symmetrically formed in the two sides of a sealing layer, and the movable plate is connected with the fixed sleeve. Meanwhile, the sealing layer is fixedly connected to the side face of the movable plate, the middle of the upper surface of the movable plate is fixedly connected with a hydraulic rod through a reinforcing block, a flow guide groove is formed in the edge of the upper surface of the movable plate, circulating holes are formed in the sealing layer and the movable plate, and the two ends of the circulating holes communicate with the embedding groove and the flow guide groove correspondingly. According to the grading hoop, the moving plate, the sealing layer, the embedding plate and the flow guide groove are matched, so that the internal structure of the grading hoop does not need to be drilled when the grading hoop is actually used, the use convenience can be improved, and the probability of internal damage of the grading hoop can be reduced.

The invention discloses a bolt and pin defect detection method based on image features, and belongs to the technical field of image recognition, and the method comprises the steps: carrying out the preprocessing of a bolt and pin image photographed during the historical inspection of an unmanned plane through super-resolution reconstruction, and obtaining a training image set and a test image set; based on an SPD convolution module, improving YOLOV8 and combining with the training image set to construct and train a bolt pin detection model, and then inputting a test image set into the trained bolt pin detection model for testing to obtain a qualified bolt pin detection model; and finally, inputting a bolt and pin image shot during real-time inspection of the unmanned aerial vehicle into the qualified bolt and pin detection model for detection to obtain a detection result. The problem that in the prior art, the detection accuracy is poor in the bolt and pin image detection process is solved.

The invention discloses a key point target recognition system for a hot-line work robot, and belongs to the technical field of hot-line work robot target recognition. The system further comprises an analysis model and a network management model. The target detection model and the analysis model are in bidirectional connection, and the output end of the analysis model is connected with the input end of the network management model; according to the method, the features extracted by the backbone network are fused; secondly, extracting more representative multi-scale features through a TUM (thin U-shaped module) and a FFM (feature fusion module); and finally, fusing the multi-level features through a scale feature aggregation module SFAM to obtain a multi-level feature pyramid for prediction of a final stage, identifying the operation key points of the robot through the system, effectively identifying problems and hidden dangers existing in rotation and movement of different operation tools and operation arms, further effectively coping with and avoiding in time, and improving the working efficiency. Hidden dangers are reduced, and the operation safety is improved.

The utility model discloses an underwater mud suction reamer machine for an open caisson, which relates to the field of open caisson construction equipment and comprises a submersible silt pump and a cutterhead component, the lower end of the submersible silt pump is connected with a waterproof motor and the cutterhead component, and the cutterhead component comprises a cutterhead frame, a steel frame, a steel casing and a high-pressure flushing pipeline. The cutterhead frame comprises a plurality of rotary cutterheads, a plurality of alloy teeth are welded on the rotary cutterheads, the steel frame is mounted on the outer ring of the cutterhead frame, a steel casing is assembled on the outer side of the steel frame, and a high-pressure flushing pipeline is assembled on the outer ring of the steel casing. The cutting tool has better cutting capacity and a stable structure, is convenient to construct, can improve operation efficiency and safety, and has obvious practical value.

The invention relates to the technical field of intelligent monitoring, and discloses a high-speed rail station landmark screen guiding system with intelligent monitoring and alarming functions, which is characterized by comprising a controller, a data acquisition module, a voltage acquisition module, an image acquisition module, a calculation module and a line crossing judgment module, the controller is respectively connected with the data acquisition module, the voltage acquisition module and the line crossing judgment module, the line crossing judgment module is connected with the calculation module, and the calculation module is connected with the image acquisition module; according to the high-speed rail station landmark screen guiding system with the intelligent monitoring and alarming functions, the landmark screen guiding system is arranged in a driving interval and a station personnel standing position, personnel crossing a warning line can be alarmed in time, flashing light and sound are given out for prompting, the station personnel are comprehensively monitored, and the safety of the station personnel is improved. And hidden dangers to driving safety are reduced.

The utility model relates to the technical field of hooks, in particular to a gravity-based automatic hook hanging and unloading structure which comprises a main body frame, a deflection rod is rotationally connected to the main body frame, one end of the deflection rod is in threaded connection with a hook body, the other end of the deflection rod is fixedly connected with a weight box, and the gravity center of the weight box is far away from the gravity center position of the deflection rod. A U-shaped plate is fixedly connected to the main body frame, and a square hole is formed in the U-shaped plate. The two ends of the deflection rod are connected with the hook body and the weight box respectively, after goods are hung on the hook body, the deflection rod can be in a vertical state, when the goods are unloaded, the deflection rod is not interfered by external force any more, and the upper end of the deflection rod can deflect towards the position where the gravity center of the weight box is located. The lower end of the deflection rod can deflect towards the position away from the gravity center of the weight box, a rope on the goods can fall off from the hook body, and then before new goods are hung, the weight box only needs to be shifted manually.

The present invention belongs to the technical field of drilling support equipment, and in particular, relates to a single-rail hydraulic anchor drilling vehicle for a filling surface, comprising a guide rail, which is arranged along the length direction of the tunnel, and the top of the guide rail is fixedly connected to the top of the tunnel through a plurality of connecting rods; two rolling parts, both of which are rollingly arranged on the guide rail; a power drive mechanism, which is fixedly connected to the bottom end of one rolling part, and the power drive mechanism is used to provide forward power; an anchor propulsion mechanism, which is fixedly connected to the bottom end of the other rolling part, and the anchor propulsion mechanism is fixedly connected to the power drive mechanism; and an auxiliary support mechanism, which is fixedly connected to the bottom end of the anchor propulsion mechanism. The drilling vehicle of the present invention can reduce extra operation time, increase excavation speed, and avoid tunnel collapse.

The invention discloses a fire alarm method, system and device for an electrochemical energy storage battery cluster, and relates to the technical field of battery fire alarm, high-risk areas in a battery installation area are identified, and each high-risk area is inspected by inspection equipment; risk values of the battery clusters are generated according to the abnormal data of the battery clusters, the battery clusters with the risk values exceeding a risk threshold value serve as hidden danger battery clusters, and a first-level alarm instruction is sent to the outside; after the emergency robot executes the emergency plan in the battery installation area, feedback data are collected, the improvement degree is generated according to the feedback data, and if the improvement degree is lower than an improvement threshold value, a second-level alarm instruction is sent to the outside; and providing a maintenance scheme for the battery clusters in the battery installation area by the battery cluster maintenance knowledge graph, and sending the maintenance scheme to the battery installation area at a selected time node. Adjusting the alarm intensity to enable the alarm intensity to adapt to the current scene; and abnormal conditions can be handled in time when possibly existing.

The three-dimensional multi-layer multi-storage-location storage goods shelf comprises storage goods shelf units, the three-dimensional multi-layer multi-storage-location storage goods shelf is composed of a plurality of storage goods shelf units, auxiliary feeding and discharging mechanisms are fixedly arranged on the inner walls of the storage goods shelf units, and auxiliary positioning mechanisms are fixedly arranged at the top ends of the storage goods shelf units; the lifting positioning frame connected to the outer wall of the positioning lead screw in a threaded mode drives the supporting base to be lifted, so that the positioning groove frames fixed to the two sides of the top of the supporting base move along the positioning groove frames, and the driving roller shafts rotating on the inner walls of the positioning groove frames are higher than the top end of the supporting frame; the supporting seat drives the positioning groove frame and the driving roller shaft to move downwards, so that the driving roller shaft is lower than the supporting frame, goods are stably placed at the top end of the supporting frame, the goods are conveniently positioned and stored while being conveniently fed and discharged, and the potential safety hazard problem of goods displacement is avoided.

The invention relates to a power distribution network primary and secondary fusion coordination model and method of a power system, belongs to the technical field of primary and secondary fusion coordination, can achieve maneuvering and active sampling speed configuration, efficiently improves the measurement sensitivity and instantaneity of abnormal fluctuation of a fusion value, and particularly provides a power distribution network primary and secondary fusion coordination model and method when the fusion value of a switch rapidly changes or is hidden in anomalies. The measuring unit can actively improve the sampling speed, guarantee the real-time mastering of important fusion values and weaken the hidden danger of lagging measurement, and the real-time speed control not only improves the early finding rate of switch faults, but also provides more accurate fault sampling for high-hidden-danger switches, and is suitable for early maintenance and convenient to use. Therefore, the hidden danger of switch damage or accidents is reduced, and finally the reliability of the switch and the high efficiency of switch fault management and control are obviously improved.

The utility model relates to the technical field of power boxes, and discloses a new energy automobile power box which comprises a chassis frame and a fixing part mounting hole, the fixing part mounting hole is formed in the inner wall of the top of the chassis frame, a power module is connected to the outer wall of the bottom of the chassis frame in a clamped mode, and an adjusting mechanism is arranged on the chassis frame. An auxiliary mechanism is arranged on the chassis frame, the adjusting mechanism comprises a ring opening, the ring opening is formed in the inner wall of the left side of the chassis frame, a positioning opening is formed in the inner wall of the bottom of the chassis frame, the inner wall of the right side of the ring opening is in threaded connection with a fixing screw, and a positioning plate is clamped to the inner wall of the bottom of the positioning opening; the outer wall of the left side of the positioning plate is fixedly connected with a power box shell. According to the utility model, the convenient separation of the power box shell and the chassis frame is realized through the adjusting mechanism, so that the cooling module, the inductor module main body and the power module form a modular structure and can be independently disassembled and assembled without overall disassembly, and the maintenance time is greatly reduced.

The present invention discloses a lifting and protection device for automatically opening a material transfer port of an aluminum mold, comprising a support frame detachably mounted at the material transfer port and a cover plate hinged on the support frame, the support frame being fixedly provided with an elastic hinge for automatically opening the cover plate, an elastic plug rod being movably mounted along the lower surface of the cover plate through a connecting piece, the support frame being provided with a slot component for the second end of the elastic plug rod to be inserted when it pops out, and a hook being connected to the elastic plug rod. The various structural functions of the present invention reduce the hidden dangers of the device being fixedly mounted at the material transfer port compared to temporary covering with a wooden board; the cover plate can be automatically opened by means of the elastic hinge, and objects hung on the hook at the bottom of the cover plate can also be automatically lifted.

The present application relates to adjustable support frame, underground support structure and construction method, and relates to the field of support structure, wherein the adjustable support frame comprises a main support assembly and a plurality of detection support assemblies; the main support assembly is arranged in a tunnel or a pipe culvert and comprises a top support frame and a side support frame. By arranging the adjustable support frame composed of the main support assembly and the detection support assembly, the support gap between the main support assembly and the inner wall of the structure with a certain limited space such as a tunnel or a pipe culvert can be detected, and supplementary support can be provided to ensure that the adjustable support frame completely supports the inside of the structure with a certain limited space such as a tunnel or a pipe culvert, and cooperate with the support base assembly to improve the support strength and stability of the adjustable support frame, reduce hidden dangers, and cooperate with corresponding equipment to also provide early warning for the pressure condition of the adjustable support frame, reduce the situation that the staff is trapped due to deformation damage caused by excessive pressure of the adjustable support frame, and the like.

The present invention relates to the technical field of heat pumps, and discloses a sewage source heat pump integrated machine, wherein the straight-through sewage source heat pump comprises a compressor, an oil separator, a straight-through large-flow condenser, a drying filter, a throttling device and a straight-through large-flow evaporator, wherein the compressor, the oil separator, the straight-through large-flow condenser, the drying filter, the throttling device and the straight-through large-flow evaporator are sequentially connected in series through pipelines to form a loop. The sewage source heat pump integrated machine can not only avoid problems such as uneven materials after arriving at the project site, but also reduce the amount of after-sales service, and complete the work that traditionally needs to be completed at the construction site in the production and processing workshop. Through strict overall testing, the hidden dangers caused by irregular installation are reduced, and the probability of failure of the system in the later stage is also reduced. Moreover, after the system is integrated, the pipelines and lines are not easy to age, and can also be anti-freezing and sun-proof, thereby extending the life of the equipment.

The utility model provides an assembly type catch basin structure and a pouring mold thereof, and belongs to the technical field of drainage engineering. The problems that when a rainwater collecting pipe is installed in an existing prefabricated rainwater well, repeated adjustment is needed, so that the construction efficiency is affected, the problem of water leakage is likely to occur, roadbed emptying is caused, pavement settlement is caused, the maintenance cost is increased, and large hidden danger exists are solved. The rainwater well comprises a rainwater well base, a concrete cushion layer and a rainwater well wall, the concrete cushion layer is arranged on the top end face of the rainwater well base, the rainwater well wall is arranged on the periphery of the concrete cushion layer in a surrounding mode, an external pipe is arranged on the outer side wall of one side of the rainwater well wall, and the rainwater well wall and the external pipe are integrally formed. The device is mainly used for installing and connecting the catch basin and the rainwater collecting pipe.

The utility model relates to spray moisturizing technical field discloses a kind of spray moisturizing devices for paperboard pre-brushing machine, including spray assembly, including atomizer, water pipe is inserted in atomizer side, knob is fixed in atomizer top, switch is provided in the knob side, mounting component, setting on water pipe, including mounting piece, the mounting piece includes mounting disc, the mounting disc is sleeved in the water pipe outside side. The utility model has beneficial effect as follows: using atomizing head direct injection mode, spray is uniform, and spray width can be adjusted according to use width, atomization amount size can also be adjusted, avoid the situation that mist amount is uneven, while no backflow water, reduce water resource waste and related hidden danger, humidifier can be adjusted mounting angle and height according to actual situation when installation, without dismounting device reinstallation, improve the flexibility and convenience of installation, make it better adaptation different use scene and equipment layout.

The invention relates to the technical field of gas station equipment, and aims to solve the technical problem of high fire risk. In order to solve the technical problem, the invention provides the pressure vacuum valve for the exhaust pipe opening of the gasoline tank of the gasoline station. A main valve body is provided with a first channel and a second channel which are communicated with each other, and a communicating hole is formed in the connecting position of the second channel and the first channel; the positive pressure valve abuts against the top of the communicating hole. The fire extinguishing valve assembly comprises a fire extinguishing valve seat, a fire extinguishing valve rod and a fire extinguishing valve body; the fire extinguishing valve seat is connected to the top end of the main valve body; a third channel communicated with the outside is arranged in the fire extinguishing valve seat; the fire extinguishing valve rod is connected with the fire extinguishing valve seat; the fire extinguishing valve body is slidably connected to the top of the fire extinguishing valve rod. The thermosensitive assembly is connected between the top cover and the fire extinguishing valve body; in a use state, the third channel is communicated with the outside; in the fire extinguishing state, the thermosensitive assembly is burnt out, and the third channel is not communicated with the outside. The automatic fire extinguishing device can automatically extinguish fire.

This utility model provides a self-alarming guardrail for broken railings, including a guardrail body; a monitoring box disposed around the periphery of the guardrail body, which can establish a communication connection with a traffic monitoring terminal; and a detection feedback device including an optical fiber and an optical fiber breakage alarm. The optical fiber is continuously laid along the guardrail body, and the optical fiber breakage alarm is connected to the guardrail body to collect optical fiber signals. When the guardrail body breaks, causing the optical fiber to break, the optical fiber breakage alarm generates a breakage feedback signal and sends it to the monitoring box, from which the traffic monitoring terminal can obtain the corresponding alarm information. The beneficial effect of this utility model is that it can promptly provide feedback on guardrail breakage information, reduce the potential for traffic accidents caused by guardrail breakage, and improve road safety.

The invention provides an implicit behavior data security acquisition method and device based on federal learning, and relates to the field of data security. The method comprises the following steps: acquiring implicit behavior data in a user equipment side, and preprocessing the implicit behavior data; performing feature extraction operation on the implicit behavior data after the preprocessing operation, and obtaining target behavior features corresponding to the keyboard data, the mouse data and the eye movement data respectively; obtaining hybrid model training parameters based on the target behavior characteristics; training parameters through a hybrid model, and carrying out local model iterative training based on a federated learning dynamic aggregation algorithm; obtaining model parameters after iterative training, and adding encryption noise for the model parameters according to a double-layer differential privacy integration mechanism; and obtaining model parameters after noise addition to complete data security acquisition. The problem that most of applications of existing federal learning in implicit behavior data still stay on the structural level, and the hidden danger of behavior privacy disclosure exists is solved.

The present invention discloses a multifunctional fully automatic drilling machine, comprising a control system and a folding lifting mechanism, wherein a rotating shaft is provided on the folding lifting mechanism, a linear feed device is installed on the rotating shaft, the linear feed device is provided with an automatic propulsion mechanism, a mounting seat and a power spring of the automatic propulsion mechanism are sleeved on a screw rod, the power spring is located between the screw rod nut and the mounting seat, at least one drilling mechanism is installed on the mounting seat, the screw rod driving mechanism is used to drive the screw rod nut to drive the drilling mechanism to move forward and backward through the power spring; the automatic propulsion mechanism is used to detect the compression amount of the power spring, if the power spring is compressed to a preset stop position, a signal is sent to the control system to control the screw rod driving mechanism to stop the action, and the drilling mechanism is driven forward by the elastic force of the power spring; if the power spring rebounds to a preset start position, a signal is sent to the control system to control the screw rod driving mechanism to start the action. The present invention has a simple structure, is widely applicable, and can drill holes more accurately.

The invention discloses a dynamic pricing device and method for a multifunctional demand pricing coupling relation, and belongs to the technical field of dynamic pricing. The dynamic pricing method comprises the following steps: analyzing the change condition of each numerical value related to air ticket pricing prices during the operation period of an airline company, and distinguishing numerical values during interval periods according to the change condition of the numerical values; and pricing is performed on the air ticket pricing price values of the airline companies in different sections, so that the obtained air ticket pricing prices are more accurate. Compared with an existing grouping method which is not easy to clearly distinguish numerical values in interval periods, the method has the advantages that the numerical values in the interval periods can be decomposed by adding variation trend parameters and adding components of information points, so that the numerical values of the air ticket pricing prices executed according to each group in the grouping values are more accurate. The defects that in the prior art, operation of general aviation enterprises is hindered, and the actual income of the general aviation enterprises is far lower than the expected investment income are effectively avoided.

The utility model discloses an indoor inspection robot intelligent linkage system, comprising an intelligent induction device, an intelligent auxiliary control device, an intelligent inspection robot and an intelligent terminal device, the intelligent induction device is used for collecting internal environment information of a building body, and the intelligent auxiliary control device is used for controlling internal electrical devices of the building body. The intelligent inspection robot is used for inspecting the operation state of an electric power cabinet in the building body, and the intelligent terminal equipment is used for processing information integration of the access equipment and information interaction with an external system platform. The intelligent sensing device and the intelligent inspection robot are connected through Bluetooth, the real-time performance is good, the intelligent inspection robot can quickly respond and make pretreatment, screening can be conducted through the intelligent inspection robot at the earlier stage that personnel intervention is needed after the intelligent sensing device finds problems, the intelligent inspection robot is more reasonable, and the intelligent inspection robot is more convenient to use. Problems can be found and solved more accurately, and unnecessary manpower waste is reduced at the same time.

The invention provides a preparation method of a clarithromycin crude product, and relates to the technical field of medicine preparation. According to the method, oxime etherified silanide is taken as a starting material, various methylation reagents are adopted, toluene is taken as a solvent system, tributyl methyl ammonium chloride is taken as a solid-liquid phase transfer catalyst, potassium hydroxide is taken as an acid-binding agent, a methylation reaction is carried out, deprotection is carried out through tetrabutylammonium fluoride, and oxime hydroxyl is reduced through potassium borohydride, so that a clarithromycin crude product is obtained.

The utility model discloses an insecticide or bactericide fumigation device, and relates to the technical field of bactericide fumigation. The fumigation device comprises a shell, wherein fumigation holes are formed in the upper side of the shell; the fixed cylinder is located in the fumigation hole, a concentric-square-shaped plate is arranged on the upper side of the fixed cylinder, and two rotating plates are elastically and rotationally matched with the interior of the concentric-square-shaped plate. The fumigation holes are formed in the upper side of the shell; the fixed cylinder is located in the fumigation hole, a concentric-square-shaped plate is arranged on the upper side of the fixed cylinder, and two rotating plates are elastically and rotationally matched with the interior of the concentric-square-shaped plate; the annular plate is in elastic and sliding fit with the interior of the fixed cylinder and the interior of the concentric-square-shaped plate, and the upper end of the annular plate is matched with the rotating plate.

This invention discloses a plant-derived herbicide and its preparation method, specifically relating to the field of biological weed control. The whole plant of *Coriandrum sativum* is dried, pulverized, and sieved. After ultrasonic extraction with an organic solvent, the extract is concentrated to obtain a paste-like extract. This plant-derived herbicide contains the following raw materials in volume fractions: 10 parts *Coriandrum sativum* extract, 2 parts emulsifier, and 88 parts water. The technical solution of this invention solves the problem of environmental pollution and pesticide residues exacerbated by existing chemical herbicides. Furthermore, the plant-derived herbicide of this invention, after being prepared into a stable formulation, can effectively control annual weeds, achieving a control effect of over 75% on weeds in farmland. The application of this plant-derived herbicide can significantly reduce the amount of chemical herbicides used, thus reducing environmental pollution.

The utility model relates to an airport deinsectization device which comprises a top plate 10, a containing box 20, a deinsectization lamp 30 and a deinsectization cage 40, the deinsectization lamp is installed on the top plate 10, the containing box 20 is arranged below the top plate 10, and the deinsectization cage 40 is arranged between the top plate 10 and the containing box 20. The insect killing lamps comprise a black light insect killing lamp with the wavelength of 320 nm to 390 nm, a blue light insect killing lamp with the wavelength of 350 nm to 490 nm, a yellow light insect killing lamp with the wavelength of 625 nm to 670 nm, a green light insect killing lamp with the wavelength of 555 nm to 610 nm and a red light insect killing lamp with the wavelength of 500 nm to 565 nm. The insecticidal lamp can meet the insecticidal requirements in most time periods and attract and kill various insects. A metal structure is adopted, fire risks can be avoided, a stable support and a connecting structure are adopted, and hidden dangers such as FOD are reduced.

The invention discloses a semi-physical simulation system of automatic cycle control, which relates to the technical field of semi-physical simulation in ballistic missile simulation technology, including automatic cycle test software, Higale real-time simulation system, inertial measurement combination simulator, integrated navigation simulator, flight control computer, steering gear system and program-controlled power supply system; the automatic cycle test software and the Higale real-time simulation system are connected via TCP / IP protocol to automatically complete test parameter binding and test result acquisition, and the Higale real-time simulation system is deployed with a six-degree-of-freedom dynamics module, an inertial measurement combination simulator and an integrated navigation simulator. The invention reduces the impact on time and accuracy brought by human operation, greatly improves test efficiency, thereby improving the coverage of test parameter states and the credibility of simulation results, and reducing the hidden dangers of flight tests.