13results about How to "Does not affect operability" patented technology

The present application relates to a kind of laser radar and camera online self-calibration method and system without induction, the method includes: S1.in the process of vehicle driving, through multi-source trigger mechanism acquisition laser radar point cloud data and camera image data, simultaneously obtain vehicle motion state information and automatic driving perception system output result, the multi-source trigger mechanism includes time trigger, event trigger and cloud data mining trigger parameter degradation model;S2.the pre-processing and feature extraction of the multi-source data collected, obtain laser radar point cloud feature and camera image feature;S3.based on geometric constraint, motion consistency and perception result fusion, constructs multi-modal verification model, and carries out multi-dimensional verification to calibration parameter.The present application not only reduces the artificial maintenance cost, through automatic means maintenance vehicle state to achieve sensor calibration parameter degradation self-detection and self-calibration without induction, and improves the reliability and attendance rate of automatic driving vehicle.

The application provides a high-solid-content fireproof glue and a preparation method thereof. The raw materials of the fireproof glue include aggregates, an anti-freezing agent, a dispersing agent, a curing agent and a defoaming agent. The aggregates include inorganic materials and metal oxides. The inorganic materials are silica sol and / or water glass, and the metal oxides are zirconium oxide and / or magnesium oxide. The mass of the dispersing agent is 1 wt% to 5 wt% of the mass of the fireproof glue, and the dispersing agent includes vitamin E succinate polyethylene glycol ester. The mass of the anti-freezing agent is 0.5 wt% to 5 wt% of the mass of the fireproof glue. The volume-mass ratio of the curing agent to the inorganic materials is 0.5 to 2 mL:10 g. The application uses vitamin E succinate polyethylene glycol ester (TPGS) as the dispersing agent, so that the solid particles of metal oxides with stable chemical properties, such as zirconium oxide and magnesium oxide, can be effectively added in the preparation process of the fireproof glue liquid. The problems that the salts containing zirconium and magnesium or the organic raw materials are prone to react or decompose in an alkaline environment are overcome, and the fire resistance and the heat insulation effect of the fireproof glue are significantly improved.

The application discloses a wireless local area network-oriented accurate congestion feedback mechanism and a feedback device, and the feedback device comprises four parts of a data packet processor, an AP-ACK generator, a Count-Min Sketch storage structure and an acknowledgement packet processor. The application sets the AP-ACK feedback wired link state information on the AP based on a segmented connection scheme, and avoids the adverse effect of the wireless network environment on the sending end congestion control. The simulation platform test result shows that the application can solve the problem of poor transmission performance in the wireless environment caused by the false congestion judgment of the existing TCP congestion control mechanism, effectively improves the bandwidth utilization and the throughput, and ensures the fair channel sharing of different data streams.

The utility model belongs to the field of hydropower station trash removal auxiliary equipment, and particularly provides a launching tool for overhauling a trash remover of a large hydropower station, which comprises a base, two groups of hinge plates are arranged on the base, a driving shaft is rotatably mounted on the hinge plates, the driving shaft is driven by a driving mechanism, and the driving shaft is connected with one end of a ladder stand mechanism. The crawling ladder mechanism comprises a first crawling ladder and a second crawling ladder, the ends of the first crawling ladder and the second crawling ladder are connected through an arc-shaped turning frame, the first crawling ladder and the second crawling ladder are arranged in parallel, and the end, away from the arc-shaped turning frame, of the first crawling ladder is connected with the driving shaft. The tool can be retracted in an unused state, interference to dam operation is avoided, and meanwhile safe and convenient underwater operation is achieved.

The invention discloses an APK operation compliance verification method and system based on cloud policy control. A client verification module is embedded in an application, environment feature information representing a running environment is collected in the starting and running stages of the application, and the information is encrypted and sent to a cloud verification service; the cloud verification service performs matching analysis on the operation environment based on a pre-configured strategy rule to generate a corresponding verification control instruction; and the client verification module performs runtime control on the display process or process state of the application according to the verification control instruction. The verification logic and the strategy rule are intensively maintained by the cloud and can be dynamically updated, and the client only executes the cloud instruction, so that the effective verification of the compliance use of the APK is realized, and the application is prevented from being used in an unauthorized operation environment.

The utility model discloses hydroxyl food purification equipment which comprises a purification device and a food purification tank, the purification device is connected with the food purification tank in an assembly mode, the purification device comprises a hydroxyl generator, a mounting seat and an assembly frame, the hydroxyl generator is arranged on the mounting seat and located in the food purification tank, the mounting seat is arranged in the assembly frame, and the assembly frame is arranged on the mounting seat. And the assembly frame is positioned above the food purification tank. By adopting a modular structure, the device can be flexibly arranged at any position of a production line according to production requirements, the purification requirements in different modes are met, and a plurality of purification procedures can be set for multi-stage and multi-time purification, so that the purification effect is ensured; the hydroxyl generator is installed in a hoisting immersion mode, normal use and operation of existing equipment are not affected, the application range is wide, installation is achieved through a cage type structure, the contact area of the purifier and cleaning water is increased, the hydroxyl generating efficiency and the purifying effect are improved, and meanwhile equipment maintenance is facilitated.

The utility model relates to a mounting device for a vehicle-mounted oxygen generator, which comprises an oxygen generator, an oxygen outlet box, an oxygen supply pipe and a mounting mechanism, a compartment body is placed at the corner of a vehicle trunk, a magic tape piece is positioned on one side of the compartment body, a magic tape hook surface is fixed on one side of the compartment body, and the magic tape hook surface is mounted on the inner wall of the trunk, so that the compartment body is fixed in an auxiliary manner; the supporting plate slides on the two mounting guide rails, the supporting plate moves downwards, 3M glue at the bottom of the supporting plate is pasted in the trunk, the compartment body is fixed to the corner of the trunk, supporting angle seats are arranged at the bent positions of the supporting plate and used for enhancing supporting performance, three oxygen supply pipes are arranged on the surface of the compartment body and communicate with three oxygen outlet boxes correspondingly, and the three oxygen outlet boxes communicate with the supporting angle seats. The oxygen outlet box is installed on the back face of the main driver and the back face of the co-driver through the fixing piece, specifically, the adjusting part is rotated to drive the double-threaded rod to rotate, the two clamping seats are close to each other, grooves in one sides of the clamping seats abut against metal rods at the bottom of a seat headrest, and the oxygen outlet box is fixed.

The application relates to a password lock convenient for password replacement, which comprises a lock body and a lock rope, the lock body is provided with a plug hole for inserting the end of the lock rope, a password wheel assembly and a lock rod are arranged in the lock body, the password wheel assembly comprises a character wheel and a top wheel, the top wheel is sleeved on the lock rod, and the character wheel is sleeved outside the top wheel, an installation cavity and a code adjusting assembly are further arranged in the lock body, the code adjusting assembly comprises a driving piece and a pressing piece, the lock rod is provided with a pressing end and a driving end, the installation cavity is arranged at the end of the driving end, the driving piece and the pressing piece are arranged in the installation cavity, the lock rod can drive the driving piece to slide along the radial direction of the lock rod, the driving piece pushes the pressing piece and the top wheel to slide along the axial direction of the lock rod, so that the top wheel is separated from the character wheel, and the character wheel is independently rotated in the circumferential direction of the lock rod, and a reset piece for driving the driving piece to reset is arranged in the installation cavity. By adopting the technical scheme, the application provides the password lock convenient for password replacement, and the structure is simple, the operation is convenient, and the password replacement can be quickly completed.

The application discloses a mining back outgoing line flameproof video camera, and relates to the field of mining video cameras, the mining back outgoing line flameproof video camera comprises a shell and a supporting plate, the supporting plate is located at the lower part of the inner side of the shell, the shell is internally provided with a circuit board assembly, the interior of the shell is provided with a light supplementing lamp at the lower part of one end of the supporting plate, the inner side of the supporting plate is provided with a copper pad, and the copper pad is provided with a power supply. A copper pad is arranged on the shell, explosion-proof glass is arranged on the copper pad, a rubber pad is mounted on the surface of the explosion-proof glass, a fixed pressing plate is mounted on the explosion-proof glass through the rubber pad, an LED lamp panel and an LED heat dissipation plate are mounted on the upper portion of the fixed pressing plate, a cover plate is arranged on the upper portion of the shell, and a wire outlet cylinder is arranged in the middle of the cover plate. The device can be mounted on the rocker arm of the coal mining machine without influencing the operation performance of the rocker arm, and can also meet the camera shooting condition under the condition of insufficient light brightness in a mine. And the camera shell has the explosion-proof property, so that the requirement of working in an underground severe environment is met.

The invention relates to a monorail crane bearing braking device which comprises a rack walking along a rail, braking assemblies located on the two sides of the rail are installed on the rack, each braking assembly comprises two braking push shafts connected to the rack in a left-right sliding mode, the two braking push shafts are arranged in a front-back mode, and the ends, close to the rail, of the braking push shafts are fixedly connected with braking pads; the brake assembly further comprises a telescopic cylinder assembly and two L-shaped brake connecting rods hinged to the rack, one ends of the L-shaped brake connecting rods are hinged to the brake push shaft, the two ends of the telescopic cylinder assembly are hinged to the other ends of the two L-shaped brake connecting rods respectively, and the telescopic cylinder assembly drives the brake push shaft to slide towards the rail when stretching out. By means of the automatic braking device, a hanging trolley, a man car or a lifting beam and other components have the automatic braking capacity, a centralized braking system of a locomotive driving braking part does not need to be depended on, and therefore the problems that due to the fact that an independent braking device is additionally arranged, the length of a locomotive is increased, and the manufacturing cost is increased are effectively solved.

This invention belongs to the field of marine technology, specifically disclosing a kayak with a capsizing rescue device. It includes a float ring, a fixing ring fixed to the center of the inner wall of the float ring for support, maintaining the float ring's fixed shape. A flip-up plate rotates on one side of the top surface of the fixing ring, with its bottom surface abutting against the fixing ring to prevent personnel from falling into the water from inside the float ring. A support frame is distributed below the fixing ring, and multiple piston components are fixed between the support frame and the fixing ring. A secondary ring is fixed to the periphery of the float ring. During normal use, a small amount of gas is injected into the secondary ring to prevent waves from entering the interior of the float ring. This invention achieves stable kayak operation, rapid self-rescue after capsizing, dynamic buoyancy enhancement, and convenient restoration to normal operating conditions through the secondary ring's wave-proofing, the automatic opening of the flip-up plate to form an escape channel, the self-weight-triggered inflation of the secondary ring for buoyancy enhancement, and a manual reset and locking structure.

This utility model relates to the field of boiler technology, specifically a marine hot water boiler, comprising a boiler body. An upper water chamber and a lower water chamber are respectively installed at the upper and lower ends of the boiler body, connected by several heating pipes. A high-temperature exhaust gas inlet is provided on one side of the boiler body, and an exhaust gas outlet is provided on the other side. Exhaust gas enters through the exhaust gas inlet, undergoes heat exchange with the water inside the heating pipes, and then exits through the exhaust gas outlet. In terms of heat exchange efficiency, the upper and lower water chambers inside the boiler body are connected by heating pipes, and the outer wall of the heating pipes is integrally formed with heat exchange fins. Additionally, a smoke deflector is installed within the flue gas passage. Exhaust gas enters through the high-temperature exhaust gas inlet, undergoes heat exchange with the water inside the heating pipes, the heat exchange fins increase the contact area between the heating pipes and the exhaust gas, and the smoke deflector extends the flow path of the exhaust gas within the boiler body, ensuring sufficient heat transfer between the exhaust gas and the water inside the heating pipes.

This utility model relates to the field of fan installation technology and discloses a fan positioning and installation fixture, including a fixed base with a clamping groove in the middle of the upper end and a support rod installed at the lower end of the fixed base; a rotating column is rotatably installed in the middle of the arc-shaped base, and a drive motor is installed at the rear end of each rotating column via a motor shaft. In this utility model, by starting two drive motors, the two rotating columns are rotated through the motor shaft, which in turn rotate two connecting plates. The upper and lower positions of the sliding base are adjusted, and the locking bolts on the locking plate are tightened to fix the sliding base, achieving precise fixing for different positions. Starting the rotating motor, the rotating motor drives two curved rods to rotate through the motor shaft, adjusting the angle of the movable plate to compress and fix the upper part of the fan, preventing the fan from tipping over during transportation, ensuring precise connection between the fan and surrounding equipment or structures, and not affecting the normal operation and performance of the fan.