9results about How to "Reduce control requirements" patented technology

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 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.

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 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.

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 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.