15results about How to "Improve device security" patented technology

The invention relates to an agricultural robot, and discloses an animal husbandry pushing robot autonomous navigation method based on a laser radar, which comprises a microsecond-level multi-sensor time synchronization architecture based on an FPGA (Field Programmable Gate Array); in a navigation layer, seamless switching between the GNSS and the laser SLAM is realized by constructing a virtual fusion observation value by utilizing extended Kalman filtering and a self-adaptive dynamic weight algorithm; in the sensing layer, an RGB-I multi-mode model fused with laser reflectivity and a biological micro-motion detection technology are adopted, and feed and biological obstacles are accurately distinguished; and in the execution layer, flexible self-adaptive material pushing is achieved in combination with material groove edge fitting and force-position hybrid control, and the navigation precision, the operation quality and the safety of the material pushing robot in the all-weather and unstructured pasture environment are effectively improved.

The self-supplemental magnetic liquid sealing device comprises a shell, a rotating shaft and at least one pole shoe. The rotating shaft is internally provided with at least one supplement groove for accommodating standby magnetic liquid. The rotating shaft is provided with an opening in communication with the supplement groove on the peripheral surface. The magnetic property of the multiple pole teeth of the pole shoe increases in a stepped manner in the direction away from the supplement groove. When the rotating shaft rotates, the magnetic liquid in the supplement groove flows out from the opening under the action of centrifugal force and is supplemented into the sealing gap of the multiple pole teeth under the attraction of the pole teeth. The device uses the magnetic field strength gradient to make the magnetic liquid fill the sealing gap. The magnetic liquid can be automatically supplemented or replaced without disassembling or opening the sealing device, thereby reducing the maintenance cost and downtime, effectively solving the problem of evaporation of the magnetic liquid, and improving the sealing reliability and service life of the magnetic liquid sealing device.

This utility model relates to the field of glass manufacturing technology, specifically to a heating structure for the edge of a tin bath, including a tin bath, a breast wall edge seal located on the outside of the tin bath, a heating rod located on the inside of the breast wall edge seal, and a control assembly located on the inside of the breast wall edge seal for controlling the displacement of the heating rod. The control assembly includes a cylinder located on the inside of the breast wall edge seal, a connecting plate located on the outside of the cylinder, a motor adapted to be installed on the outer surface of the connecting plate, a gear fixedly connected to the output end of the motor via a coupling, a gear disc meshing with the outer surface of the gear and used in conjunction with the cylinder, and rotating rods respectively fixedly installed at both ends of the cylinder. This utility model, by incorporating an anti-fall mechanism, not only prevents the heating rod from loosening or even falling off due to the centrifugal force generated during rotation as the cylinder rotates, but also automatically adjusts the clamping force on the heating rod according to the magnitude of the centrifugal force, ensuring the stability of the heating rod during position adjustment.

This utility model provides an automatic return device based on a cam mechanism, comprising: a base plate fixed to a pump body at the end of a displacement control shaft; a cam mechanism fixed to the displacement control shaft and circumferentially connected thereto, the outer circumferential surface of the cam mechanism having a V-groove; a slider mechanism, one end of which is rotatably connected to the base plate, and the other end extending into the V-groove and rollingly connected thereto, wherein when the displacement control shaft is in the return-to-center state, the slider mechanism is located at the bottom center of the V-groove; and a reset mechanism connected between the slider mechanism and the pump body, applying a preset pulling force to the slider mechanism to maintain contact between the slider mechanism and the V-groove.

This application relates to the field of agricultural mechanization and intelligent control technology, and discloses a method for collaborative operation of multiple agricultural machines based on a vertical domain large model. The method includes: a central controller receiving multi-source sensing data uploaded by onboard controllers, fusing and constructing a vertical domain knowledge graph and generating a load distribution prediction model, and issuing an initial collaborative path accordingly; each onboard controller collecting attitude data to calculate deviations, correcting parameters and uploading them if they exceed a threshold, and generating an optimized collaborative path; the central controller receiving torque values ​​to calculate the resultant torque distribution, determining the lever arm length distribution, analyzing the center of gravity offset in conjunction with the weight of the agricultural machinery, and issuing commands to adjust the relative posture of the agricultural machinery under high loads; each onboard controller monitoring hydraulic pressure, fine-tuning actuator resistance and uploading stability parameters if it exceeds the range; the central controller evaluating durability indicators based on historical data, and updating the collaborative path by fusing real-time data when the indicators are too low, obtaining the final solution. This application improves the accuracy of collaborative operation of multiple agricultural machines in complex terrain.

The application discloses a wafer bevel detection method and a wafer bevel detection device, which are used for detecting the state of a wafer on a plating head. The wafer bevel detection method comprises the following steps: S10, constructing a detection area enclosed by at least three detection mechanisms, and constructing the coverage range of the detection area to be greater than the range of the wafer; S20, setting the object detected by the detection mechanism as the surface of the wafer for adsorption by the plating head; S30, before the plating head clamps the wafer and closes the clamping action, the detection mechanism is started and whether the outer edge of the wafer extends out of the detection area is judged; when the wafer is in the detection area, the plating head is closed and the wafer is clamped; when the outer edge of the wafer extends out of the detection area, the detection mechanism triggers a signal to stop the action of closing and clamping the wafer by the plating head and correspondingly stops the action of closing and clamping the wafer.

This invention discloses an intelligent collaborative operation control system for a water network hydraulic hub's cleaning machine and gate opener. This invention relates to the field of automated control technology for hydraulic hubs, and includes a collaborative sensing layer comprising a cleaning machine status sensing unit, a gate opener status sensing unit, and a hydraulic boundary sensing unit. The cleaning machine status sensing unit is used to acquire the real-time load torque and operating frequency of the cleaning machine. This intelligent collaborative operation control system for a water network hydraulic hub's cleaning machine and gate opener, by constructing a hydraulic-mechanical dynamic impedance mapping model, reconstructs the cleaning machine and gate opener from physically independent devices into a collaborative operating entity with impedance coupling, solving the fundamental defect in existing technologies where the two operate independently and cannot sense each other's status changes. It transforms the control relationship between the cleaning machine and gate opener from a unidirectional response to a bidirectional feedback, achieving dynamic adaptation to the flow rate through the gate and the cleaning load.

The utility model provides a high-temperature flue gas monitoring and control device for the thermal control specialty of a thermal power plant, and the device comprises a high-temperature flue gas sampling system, a temperature control system, and a master control system, the high-temperature flue gas sampling system comprises a tubular probe rod and a filter, the filter is arranged at one end of the tubular probe rod and is used for sampling high-temperature flue gas; a blowback air pipe is arranged at the other end of the tubular probe rod and is used for preventing particulate matter blockage; and a blowback air heating through hole is formed in the blowback air pipe and is used for ensuring the stability of the temperature of the blowback air. According to the technical scheme, the accuracy and stability of high-temperature flue gas monitoring and the equipment safety are improved, the maintenance cost is reduced, and the operation efficiency of a thermal power plant is improved.

The application provides an arc heater ballast resistor fireproof fixing device. The arc heater ballast resistor fireproof fixing device comprises a metal frame and a ceramic fixing assembly for fixing the ballast resistor on the metal frame, the ceramic fixing assembly comprises a first ceramic fixing piece, a second ceramic fixing piece and a ceramic buckle, the ballast resistor has a bending part and a connecting part connected with the bending part, the metal frame has a hollow part corresponding to the bending part, the first ceramic fixing piece is fixed in the hollow part of the metal frame, the second ceramic fixing piece is fixed on the metal frame, and the bending part and the connecting part of the ballast resistor are fixed on the first ceramic fixing piece and the second ceramic fixing piece through the ceramic buckle respectively. The arc heater ballast resistor fireproof fixing device solves the fire risk caused by the sharp rise of the surface temperature of the ballast resistor under the abnormal condition of large current or cooling water supply, and has the advantages of simple structure, light weight and high reliability.

The invention discloses a power frequency conduction immunity capability detection system and method for an input loop of a relay protection device in the field of electromagnetic compatibility tests, and aims to solve the technical problems of poor real-time performance, low efficiency and the like caused by dependence on manual observation and post-event log analysis in an existing test method. The system comprises a relay protection device and a power frequency conduction immunity tester, the relay protection device comprises an input loop module to be tested, and the power frequency conduction immunity tester is used for generating and applying power frequency interference to the input loop module; a direct current source and a photoelectric conversion switch are arranged outside the power frequency conduction immunity tester, the relay protection device is connected with the PC through the photoelectric conversion switch, and the PC receives action data of an input loop and stores and analyzes the action data. According to the invention, real-time and automatic monitoring and analysis of millisecond-level state change of the input loop can be realized, and the automation level, the real-time performance, the accuracy and the rectification efficiency of the test are improved.

The invention discloses a protective structure of a rotary power device, which relates to the technical field of unmanned equipment accessories and comprises a protective net assembly and a connecting assembly. The protective net assembly is in an ellipsoid shape and used for being arranged outside a propeller of the rotating power device in a covering mode. A plurality of through holes which are uniformly distributed are formed in the peripheral side of the protective net assembly, a flow guide structure is further arranged on the inner side of the protective net assembly, and the flow guide structure is configured to guide fluid to flow in the preset direction when the propeller rotates so as to discharge impurities in the through holes; the connecting assembly is used for fixing the protective net assembly to a protected device. Based on the technical scheme disclosed by the invention, the collision protection capability and the equipment safety can be improved, self-cleaning can be realized, the flow resistance can be reduced, the endurance time of the equipment can be prolonged, and the anti-winding effect can be greatly improved.

This invention belongs to the field of flowmeter verification and calibration technology, and particularly relates to a high-precision and rapid transfer method for weighing containers during flowmeter verification and calibration. Its key feature is that, during the weighing process of flowmeter verification, after the weighing container is moved and returned to its original position, the repositioning accuracy of the weighing container on the electronic scale is controlled to be less than 1 mm. The specific operation steps are as follows: 1) Preparation stage; 2) Lifting; 3) Transfer; 4) Weighing; 5) Reset; 6) Equipment restoration, the equipment returns to the verification and calibration state. Compared with the prior art, the beneficial effects of this invention are: during the flowmeter verification and calibration process, without the aid of cranes or forklifts, the weighing container can be quickly and accurately transferred to a reasonable position; during the transfer process, the weighing container can maintain precise positioning at all times; and after the electronic scale is reset, the weighing container can be quickly placed back on the electronic scale, while reducing collisions and impacts on the electronic scale.

The utility model discloses a kind of refrigerators of convenient maintenance, it is related to refrigerator technical field, including mounting plate and connecting plate, the upper surface of mounting plate is equipped with refrigeration compressor by connecting plate, the front and rear both sides of connecting plate are equidistantly installed with first tooth block, the front and rear both sides of mounting plate are installed with vertical plate, the opposite side of movable plate is equidistantly installed with second tooth block;The upper surface of mounting plate is equipped with wire harness limiting groove in left and right sides. The refrigerator of convenient maintenance, by the pre-positioning cooperation of positioning column and positioning hole, rotating threaded rod on vertical plate, drive movable plate to move along guide telescopic rod, make first tooth block and second tooth block staggered engagement, realize the quick locking and loosening of refrigeration compressor, dismounting and resetting time when repairing can be greatly shortened without complex tool;Meanwhile, engagement structure can be transverse and longitudinal limit to compressor, ensure installation stable.

The utility model discloses a novel experimental sampling tube belongs to laboratory instrument technical field, including sampling tube body, the top of sampling tube body is connected with detachable cover, the inner chamber upper portion of sampling tube body is provided with a filter screen, and the filter screen bottom surface and the extension connection of sampling tube body inner chamber direction has the funnel, and the one end away from filter screen of funnel is provided with the flow guide port, and the funnel and flow guide port are located in the inner chamber of sampling tube body and the coaxial heart arrangement of funnel and flow guide port and sampling tube body, and the inner chamber of detachable cover is provided with elastic sealing piece, and the bottom of sampling tube body still detachable is connected with one for supporting the temporary placement support disc of supporting and carrying sampling tube body. The utility model has realized the preliminary purification function to liquid sample, prevented solid impurity interference analysis result or damaged subsequent analysis instrument, reached the effect of improving experimental data accuracy and equipment security.

This invention relates to the field of meat processing technology and discloses a low-temperature preservation slaughtering method. The method involves inserting a bipolar probe into the deep muscle layer of the carcass to be processed, controlling the in-situ processing module to output an alternating current within a safe range to obtain impedance ratio data, and simultaneously acquiring and uploading surface and deep temperature data of the carcass. The industrial control motherboard calculates the current deep safety temperature threshold based on this data and, combined with the temperature data, calculates the predicted deep temperature value for the next cycle. When the predicted value is continuously lower than the safety threshold, an external electrical pulse is introduced into the carcass to perform strong electrical intervention to accelerate the biochemical process. Subsequently, the system evaluates the carcass's acid removal and biochemical maturity score based on impedance, temperature, and pulse energy sequences, and precisely adjusts the inverter output of the refrigeration unit for coordinated optimization when preset conditions are met. This invention can actively avoid physical cold contraction, thereby improving refrigeration efficiency and preservation quality.