20results about How to "Reduce control requirements" patented technology

The invention discloses a passivation contact structure, a solar cell, a manufacturing method of the solar cell, a photovoltaic module and a photovoltaic system, and belongs to the technical field of solar cells. The passivation contact structure is arranged on a silicon substrate, a P-type doping layer is formed on the front surface of the silicon substrate, and the passivation contact structure comprises an N-type doping layer, a first passivation layer and a hole-shaped reverse electric leakage channel penetrating through the N-type doping layer, the first passivation layer, the silicon substrate and the P-type doping layer. A first doping layer is formed in the hole-shaped reverse electric leakage channel and connected with the P-type doping layer and the N-type doping layer, so that electrical contact between the front face and the back face can be achieved. By introducing a reverse electric leakage channel into the passivation contact structure, the reverse electric leakage capability of the solar cell can be improved, and along with the improvement of the electric leakage capability, when the solar cell is shielded at an assembly end, the reverse voltage at the two ends of the shielded solar cell can be reduced, and the heating power of the solar cell can be reduced; therefore, the purpose of controlling the hot spot risk is achieved.

The utility model relates to the technical field of logistics warehousing, and discloses a docking station, a material processing station, a material processing system and a warehousing system.The docking station is provided with a conveying line in the first direction, a docking platform is formed at the end, in the first direction, of the conveying line, and a transferring mechanism is arranged at the other end of the conveying line; a channel extending in the first direction is formed in the bottom of the conveying line, the channel is used for allowing the transfer robot to enter and exit from the connection station in the first direction, and a connection position corresponding to the butt joint platform is arranged in the channel; the butt joint platform is used for being in butt joint with a transfer robot which enters the channel in the first direction and reaches the connection position so that the transfer robot can take the material box on the butt joint platform and / or place the material box; the conveying line is used for conveying material boxes between the butt joint platform and the transferring mechanism. The transferring mechanism is used for conveying the material box in the second direction, and the second direction is perpendicular to the first direction. In this way, the material conveying and processing efficiency can be improved.

The invention relates to the technical field of separation and purification, and discloses a method and a system for extracting high-purity norbornene. The norbornene product obtained by the method provided by the invention has high purity and is suitable for COC synthesis. Moreover, the method also has the advantages of high treatment efficiency, easiness in control and management of the treatment process and the like, and is very suitable for large-scale industrial production and application.

The application discloses a novel fuel cell graphite bipolar plate with anti-overflowing glue, wherein the inner and outer sides of the sealing groove structure are provided with first glue overflow grooves parallel to the sealing groove; the inner side of the bipolar plate edge is provided with a second glue overflow groove; the second glue overflow groove surrounds the bipolar plate edge; a third glue overflow groove is arranged between the first glue overflow groove on the outer side of the sealing groove and the second glue overflow groove and close to the bipolar plate edge; a fourth glue overflow groove is arranged between the second glue overflow groove and the bipolar plate edge; one end of the fourth glue overflow groove is communicated with the second glue overflow groove, and the other end is provided with a glue overflow opening; the first glue overflow groove, the third glue overflow groove, the second glue overflow groove and the fourth glue overflow groove form a buffer extension path; when the excess glue passes through the glue overflow grooves, the flow resistance is increased, and the glue discharge speed is significantly slowed down. This avoids the rapid flow of the glue out of the bipolar plate, reduces the pollution of the glue overflow to the production environment and other components, and reduces the production interruption and material waste caused by cleaning the glue overflow.

The invention discloses a settling filter for purifying tap water in a laboratory. The settling filter comprises a mixing tank and a settling filter assembly, the liquid inlet end of the mixing tank is connected with a laboratory tap water pipeline, and the liquid outlet end is connected with the water inlet end of the settling filter tank assembly through a pipeline; the mixing tank is further connected with a flocculating agent adding assembly through a pipeline, the sedimentation filter tank assembly comprises a long-strip-shaped tank body, a suspended filter bed, a plurality of rows of inclined plates distributed in parallel at intervals and a plurality of sedimentation hoppers are sequentially arranged in the tank body from top to bottom, and sludge discharge ports of the sedimentation hoppers are connected with a sludge treatment assembly through pipelines. A water inlet and a water outlet are formed in the tank body, the water inlet is located between the inclined plate and the precipitation hopper, the water outlet is located above the filter bed, and the water outlet is connected with a clear water treatment assembly through a pipeline. The device is compact in structure, can effectively improve the purification efficiency of tap water in a laboratory, is stable in water outlet, and effectively solves the problems of hardening and blockage of a filter bed.

The invention discloses an elevator secondary leveling operation control method which comprises the following steps: S1, when an elevator is in a deceleration operation state, monitoring a speed instruction output by an elevator control system; s2, when the speed instruction is zero, the height difference between a car floor and a floor sill is obtained; s3, when the height difference is larger than a trigger threshold value, a door lock loop is short-circuited; s4, calculating a secondary leveling operation speed instruction according to the height difference; and S5, secondary leveling operation is executed. According to the method, the requirement for the control performance in the deceleration process is low, and the leveling precision is high.

The present invention discloses a dual-shock absorber, a dual-column single swing arm suspension system and a dual-column single swing arm suspension mobile platform based on the dual-shock absorber, aiming to solve the problems existing in the prior art, such as poor chassis vibration reduction effect, poor vertical obstacle crossing ability, instability and easy toppling, and too high space occupancy. The dual-shock absorber of the present invention connects two shock absorbers into one body through an upper fixed seat and a lower fixed seat to form a rectangular structure; it not only improves its vibration reduction effect, but also increases its torsional rigidity. The dual-column single swing arm suspension system of the present invention adopts a single wishbone suspension method similar to the McPherson suspension, and the dual-shock absorber also serves as a steering support structure while reducing vibration; the mobile platform of the present invention connects the frame to the roller through the dual-shock absorber, and the dual-shock absorber and the frame are hinged, which satisfies the degree of freedom required for the up and down movement of the wheels and steering, and improves its vertical obstacle crossing ability.

This application provides a device control system, method, and storage medium. The device control system includes a main control unit for acquiring the motor operating parameters of the galvanometer motor of a laser cleaner; a slave control unit connected to the main control unit for receiving the motor operating parameters sent by the main control unit and generating an initial triangular wave control signal based on the motor operating parameters; and a digital-to-analog converter connected to the slave control unit for receiving the initial triangular wave control signal and generating a target triangular wave control signal based on the initial triangular wave control signal. The target triangular wave control signal is used to control the movement of the galvanometer motor. The embodiments of this application achieve the elimination of PID parameter tuning and allow for personalized output of the target triangular wave control signal, avoiding repetitive experiments and reducing the complexity of the control method, performance requirements, and equipment development costs.

The invention belongs to the technical field of crystal materials, and discloses a lutetium yttrium silicate precursor and a preparation method and application thereof. The preparation method of the yttrium lutetium silicate precursor comprises the following steps: preparing a sodium silicate solution; adding lutetium chloride, yttrium chloride and cerium chloride into deionized water to form a mixed solution, then adding the sodium silicate solution, and stirring for 3-8 minutes to obtain a mixed material liquid; mixing the mixed material liquid with a precipitant, carrying out precipitation treatment, stirring for 5-15 minutes, carrying out suction filtration, and washing with deionized water until the pH value is 7-8, so as to obtain a precipitate; and burning the precipitate to obtain the catalyst. The yttrium lutetium silicate precursor produced by the invention is used for crystal growth, the obtained crystal bar is free of miscellaneous agglomerate fog cracking and the like, the uniformity is better, the light output of the crystal is better, and the resolution ratio is better.

The application discloses a kind of intersecting optical axis multi-fish-eye camera space positioning method, utilizes the target position measurement and corresponding error obtained by fish-eye camera, combines multi-sensor fusion technology, and the position optimal estimation based on world coordinate system is carried out to the spatial target point appearing in multi-camera image and the corresponding measurement error is generated.Meanwhile, by comparing the size of actual error and theoretical error, multi-target matching and error matching avoidance can be carried out in the form of hypothesis testing.

The invention discloses a scum removing device for high-temperature alloy vacuum smelting, and particularly relates to the technical field of high-temperature alloy vacuum smelting. Comprising a shell and a high-temperature alloy smelting crucible, a moving mechanism is arranged on the shell and used for driving the shell to move to the position over the high-temperature alloy smelting crucible, and a moving rod and a fixed rod which are located at the same height are arranged under the shell; the ends, close to the inner wall of the high-temperature alloy smelting crucible, of the movable rod and the fixed rod are provided with arc faces matched with the inner wall of the high-temperature alloy smelting crucible, the shell is further provided with a driving mechanism used for driving the movable rod to rotate along the inner wall of the high-temperature alloy smelting crucible, and the end of the movable rod is kept to abut against the end of the fixed rod all the time in the rotating process. The moving rod abuts against the side wall of the fixed rod when not rotating. By the adoption of the technical scheme, the problem that an existing high-temperature alloy vacuum smelting scum removing device is low in scum removing efficiency is solved, and the scum removing efficiency is improved.

This utility model belongs to the field of ventilation engineering technology for hydropower stations, specifically relating to a ventilation and safety tunnel exhaust tower layout structure. In this utility model, the lower floors of the main exhaust tower are only located outside the exhaust duct opening. The side walls of the lower floors of the main exhaust tower connect with the exhaust duct opening, allowing the internal space of the main exhaust tower to communicate with the exhaust duct. The upper floors of the main exhaust tower connect with the mountain via an extended platform. An auxiliary exhaust tower is fixedly installed on the extended platform. The main exhaust tower and the auxiliary exhaust tower are fixed as a whole, with their internal spaces interconnected. Rainproof vents are provided on the tops of both the main exhaust tower and the auxiliary exhaust tower. Exhaust fans are installed inside the exhaust tower or the exhaust duct, used to exhaust air from one end of the exhaust duct through the rainproof vents. This utility model reduces the overall engineering volume and construction cost of the exhaust tower without increasing the building height or ensuring sufficient exhaust area.

The utility model discloses a wastewater treatment device for a silicon steel production system. The wastewater treatment device comprises a flocculation basin; the middle tank is communicated with the flocculation tank, and an overflow port is formed in the side wall of the middle tank; the sedimentation tank is communicated with the overflow port and is provided with a sedimentation outlet and a clear liquid outlet; the collecting tank is communicated with the clear liquid outlet and is communicated with the settling tank through a circulating pump; the filter press is provided with a feed port, a water outlet and a waste discharge port, the feed port is communicated with the sedimentation outlet, the water outlet is communicated with the sedimentation tank, and the waste discharge port is communicated with the outside. According to the wastewater treatment device for the silicon steel production system, after flocculation treatment is carried out through the flocculation basin, solid-liquid separation is carried out through the sedimentation basin, and discharged high-concentration magnesium oxide sludge is subjected to filter pressing forming, so that the flow control requirement is reduced, high-concentration sludge can be subjected to filter pressing without arranging a plurality of filter presses, the occupied area is reduced, and the cost is reduced. Meanwhile, blockage is avoided, and efficient and continuous wastewater treatment is guaranteed.

The utility model discloses a laminated cell and a battery, the laminated cell is provided with an uppermost pole piece, a middle pole piece group and a lowermost pole piece which are sequentially laminated along the lamination direction, and the laminated cell comprises a main body part and a first tab part connected to the first side of the main body part; the main body part is provided with a first thinned area on the first side, a surface perpendicular to the stacking direction is a projection surface, and the projection of the first thinned area on the projection surface forms a first thinned area; the main body part is provided with a first coating on one surface, far away from the middle pole piece group, of the uppermost pole piece and / or the lowermost pole piece, the projection of the first coating on the projection surface forms a thickened area, and the thickened area is located in the first thinned area. The utility model is applied to the field of secondary batteries.

The automatic cleaning cat litter basin comprises a frame, a moving device and a cat litter rake, and the frame is sequentially provided with a cat litter containing space and an excrement falling opening in the length direction of the frame; the moving device is arranged on the side portion of the frame and can reciprocate in the length direction of the frame. The cat litter rake is transversely arranged on the frame, and the end part of the cat litter rake is arranged on the moving device; the moving device can drive the cat litter rake to move up and down. When the moving device drives the cat litter rake to move from the end, away from the excrement falling opening, of the cat litter containing space to the end, close to the excrement falling opening, of the cat litter containing space, the cat litter rake can rake excrement out of the cat litter. And then the cat litter rake is driven by the moving device to ascend and move so as to stir the feces into the feces falling opening. Therefore, according to the automatic cleaning cat litter basin, the moving device not only can drive the cat litter rake to move in the length direction of the frame, but also can drive the cat litter rake to ascend and descend, so that excrement can be poked into the excrement falling opening through the ascending and descending track, the structure is simple, the movement track of the cat litter rake is also simple, and the cat litter basin is convenient to use. And the control requirement on the system is low. In addition, the invention further provides a cat litter cleaning method.

The invention belongs to the technical field of pesticides, and particularly relates to a preparation method and application of a pyrido [1, 2-a] pyrimidone compound containing a 1, 3, 4-oxadiazole thioether unit. The compound is shown as a general formula I, wherein R1 independently represents alkyl, aryl, heterocyclic group and the like; and R2 independently represents hydrogen, alkyl, halogen, or the like. R3 independently represents a methyl group, an ethyl group, an aryl group, a heterocyclic group or the like; the compound has a good prevention and treatment effect on plant hoppers, aphids and the like.

The invention relates to a low-temperature pyrolysis treatment system and method for household garbage incineration fly ash, and belongs to the technical field of household garbage incineration fly ash treatment. The system comprises a fly ash tabletting granulation system, a fly ash pyrolysis and magnetic material circulation system and a dust collection system, the fly ash tabletting and granulating system comprises a feeding device, a tabletting machine, a crusher and a fly ash feeding bin; the fly ash pyrolysis and magnetic material circulation system comprises a magnetic material feeding bin, a pyrolysis furnace feeding screw, a pyrolysis furnace, a belt conveyor and an iron remover located above the belt conveyor. The dust collection system comprises a sealing cover arranged above the belt conveyor and a dust collection cover connected with the sealing cover, and the dust collection cover is communicated with a dust feeding port of the tablet press through a dust conveying pipeline. According to the method, the fly ash is subjected to granulation treatment through the processes of tabletting and crushing, a mixture with the particle size being 50 microns to 10 mm is formed, the stacking density can reach 1 t / m < 3 > to 1.5 t / m < 3 >, and the treatment capacity and the operation stability of the pyrolysis process are remarkably improved.

The utility model discloses a cup body thread double-roller forming device which comprises a machine body, a conveying belt is arranged in the middle of the machine body, a plurality of positioning seats rotating on the conveying belt are arranged on the conveying belt, cup bodies are fixed to the positioning seats, and the conveying belt is used for circularly conveying the positioning seats and the cup bodies; the internal thread rolling device is arranged on one side of the conveying belt and comprises a first roller column, male threads are formed on the surface of the first roller column, and the first roller column is driven by a rotating motor to rotate, can move horizontally and vertically and is used for stretching into the cup body to roll the internal threads; the external thread rolling device is arranged on the other side of the conveying belt and comprises a second roller column, female threads are formed on the surface of the second roller column, and the second roller column is driven by another rotating motor to rotate and can also be controlled to move horizontally and vertically.