9results about How to "Solve hidden dangers" patented technology

The invention discloses a false data injection attack detection method based on measurement physical recovery, and relates to the technical field of network security, and the method comprises the steps: obtaining a current abnormal data set, different from a normal data set, of a detection object; obtaining a historical abnormal data set of the detection object, and determining a threshold range used for detecting the current abnormal data set through a difference value between the historical abnormal data set and the normal data set; and executing a first repair action on the current abnormal data set according to the threshold range, so that the current abnormal data set falls into the threshold range. The method has the advantages that physical constraint is introduced, physical restoration action is executed on the current abnormal data set, enough accuracy and reliability of current abnormal data set restoration are improved, the current abnormal data set and hidden problems brought by the current abnormal data set to a power system are solved, and the power system reliability is improved. And the accurate capture and timely repair of later abnormal data by the power system can be improved.

The utility model belongs to the technical field of photovoltaic glass production equipment, and particularly relates to a silk-screen printing scraper coping device which comprises a workbench, a vacuum cover, a scraper, a clamping and positioning mechanism, a grinding mechanism, a linear guide rail and an electric control driving mechanism, and the clamping and positioning mechanism, the grinding mechanism, the linear guide rail and the electric control driving mechanism are installed at the top end of the workbench. The working table comprises a left table body and a right table body; the left table body and the right table body extend in the front-back direction. A synchronous belt mounting groove is formed in the middle of the right table body and penetrates through the upper surface of the right table body from front to back; a driving motor mounting notch is formed in the front end of the right table body, and an opening in the front end of the synchronous belt mounting groove is communicated with the driving motor mounting notch. The clamping and positioning mechanism, the grinding mechanism and the electric control driving mechanism are installed on the workbench, the grinding mechanism moves along the guide rail under the action of the electric control driving mechanism, the scraper is ground through the grinding wheel, the edge of the silk-screen printing scraper can be ground flat, and the grinding efficiency is improved.

The utility model provides a kind of solid raw material dewatering equipment for three-proofing glue production, belong to the technical field of glue production, including bearing mechanism, including adsorption tower, fixed installation in the top of adsorption tower pipe body and the sealing cover of movable installation in the top of pipe body;Mounting mechanism, including ring sleeve.The utility model is by box body and support disc to realize molecular sieve granule board whole quick replacement, greatly shorten downtime, avoid production interruption;Sealing cover and mechanical interlock's positioning assembly ensure that adsorption tower is airtight when disassembling, prevent air moisture absorption or dust leakage;Spring support and limiting structure of jacking assembly auxiliary one-key type release locking mechanism, reduce artificial intervention, avoid the risk of forcible disassembly when high temperature is not pressure relief;Prepackaged filling type molecular sieve granule board is directly replaced, and particle crushing and pipeline pollution are eliminated.These designs comprehensively improve replacement efficiency, safety and sealing, solve the production bottleneck and hidden danger of traditional replacement mode.

The utility model relates to a protective device, belongs to the technical field of central air conditioners, and particularly relates to a drip-proof central air conditioner protective device which comprises a frame, a connecting frame, a dovetail groove, a dovetail block, a water collecting box and a collecting box, a sliding unit is arranged on the inner wall of the collecting box, and an extrusion block and an extrusion plate are arranged in the collecting box through the sliding unit. A sponge block is installed on one side of the extrusion block, an avoiding hole is formed in the inner wall of one side of the frame, a sliding rod is fixedly connected to one side of the extrusion plate, the surface of the sliding rod is sleeved with a spring, and the surface of the sliding rod is slidably connected with the inner wall of the avoiding hole; by means of the collecting assembly, water drops caused by condensation can be collected, the use safety of the air conditioner is improved, and the problems that when an existing air conditioner conducts refrigeration, when the temperature of fed cold air is lower than the indoor dew point temperature, condensed water drops can be generated on the wall of an air pipe, the periphery of an air opening and blades, the water drops can drop out along the air opening, and the use safety of the air conditioner is affected are solved. And unsafe hidden dangers are caused to the equipment.

The utility model discloses a multi-station board transfer device, which relates to the technical field of transfer devices and comprises a transfer table, a longitudinal groove is formed in the top of the transfer table, transverse grooves are formed in the transfer table and located at the two ends of the longitudinal groove, second oil cylinders are arranged at the four corners of the bottom of the transverse grooves, and bottom plates are arranged at the two ends inside the transverse grooves. The bottom of the bottom plate is fixed to the output end of a second oil cylinder, the transfer table is arranged at the end of the discharging position of a conveyed wood board, and through work of the conveying mechanism at the longitudinal groove, the wood board can pass through the end, away from the discharging position, of the longitudinal groove to serve as a first transfer point; the bottom plate and the conveying mechanism located at the positions of the transverse grooves in the two sides are matched with the U-shaped frame in the longitudinal groove to work, a second transfer point and a third transfer point can be formed, and therefore original single-position discharging transfer is changed into three-position discharging transfer, hidden dangers and influences caused by single-position transfer on the safety and physical strength of workers are avoided, and the working efficiency is improved. And meanwhile, the transferring and discharging efficiency is also improved.

The utility model provides a novel two-side overhead rotary assembly line which comprises an annular rotary line, a transmission system and a PLC electrical control system, the PLC electrical control system controls the transmission system to operate, the transmission system drives a wire harness workbench trolley to move on the annular rotary line, and when the whole assembly line starts to operate, the wire harness workbench trolley moves on the annular rotary line. The operation trolley on the assembly line is driven by the conveying chain with the speed adjusted by the frequency converter to walk on the platform according to the linear speed set by the process, when the operation trolley moves to the tail end of the straight rail on one side, the operation trolley drives the workbench to bypass to the head end of the straight rail on the other side along the arc-shaped rail, and rotation of the whole assembly line is achieved through repeated operation. The utility model has the advantages of high stability and strong safety.

According to the large-scale circuit breaker rapid replacement device used in the low-voltage power distribution system, rolling translation devices used for supporting a circuit breaker in a rolling mode are installed on the two sides of the upper plane of a lifting trolley, and an angle adjusting device installed at the front end of the middle of the upper plane of the lifting trolley is located between the two rolling translation devices. When the height of the lifting trolley is adjusted to be flush with the circuit breaker, the pulled-out circuit breaker is located on the front half section of the rolling translation device, the inclination angle of the circuit breaker is adjusted through lifting and rotation of the angle adjusting device, and the circuit breaker is translated to the rolling translation device; and the circuit breaker of the lifting trolley is moved out of the low-voltage power distribution cabinet through a push rod at the rear end of the lifting trolley. According to the utility model, the problem that potential safety hazards exist in the process of pulling out and carrying the circuit breaker in a manual replacement mode is solved, the labor intensity of replacing the circuit breaker is reduced, the potential safety hazards caused by improper operation of personnel are eliminated, the working efficiency is improved, the power failure time for maintaining and repairing the circuit breaker is shortened, and the power supply reliability is improved.

The invention provides an electric yoga wheel which comprises a supporting device, a driving device arranged in the supporting device and a massage wheel rotationally connected to the supporting device and connected with the driving device, and a flexible protection pad which covers the massage wheel and is connected to the supporting device is arranged on the peripheral side of the supporting device. The supporting device comprises a first fixing disc and a second fixing disc which are located at the two ends of the massage wheel respectively, a hollow column extending to the inner side of the massage wheel is arranged on one side of the first fixing disc, and the driving device is arranged in the hollow column. According to the electric yoga wheel, the massage wheels are driven to rotate through the driving device, when a user uses the electric yoga wheel, the user lies on the flexible protection pad or extrudes the flexible protection pad to a part needing to be massaged, the flexible protection pad is stressed to deform, the flexible protection pad and the massage wheels are extruded, and the massage effect is improved while massage is conducted. The flexible protection pad can well prevent hair from being wound on the yoga wheel, the hidden danger existing in the massage process is effectively avoided, and a user is safer in the massage process.

The invention relates to a hidden accident association degree evaluation method based on an intermediate index, and the method comprises the following steps: building an accident database, collecting accident cases, and building an accident database; extracting sentence vectors of the hidden danger text, and extracting sentence vectors of hidden danger description by using a BERT model; constructing a hidden danger text tree, and constructing the hidden danger text tree and a hidden danger text-index sequence data set through k-means clustering; constructing and training a hidden danger index sequence generation model, and predicting a hidden danger index sequence by using a transform model framework; hidden danger similarity calculation: generating an index sequence and calculating hidden danger text similarity; and evaluating the degree of association of the hidden accidents, and evaluating the degree of association based on the similarity and the accident weight. The technical problems that in the prior art, hidden danger text semantic understanding is insufficient, and a hidden danger and accident association weight evaluation mechanism is inaccurate are solved.