37results about How to "Adjustment period is short" patented technology

The invention relates to a laser radar coaxial transmitting and receiving system and a coaxial adjustment method thereof and belongs to the technical field of laser radar, and the method can be used for solving the problem that the coaxial adjustment period of a laser radar receiving and transmission light path is long. The laser radar coaxial transmission and receiving system is composed of a laser device, a transmission telescope, a first reflecting mirror, a second reflecting mirror, a receiving telescope, a concave lens, a convex lens, a beam splitter, an optical fiber, a CCD (Charge Coupled Device) camera, a computer and a motor rotation control system. The coaxial adjustment method based on the system comprises the following steps: adjusting the visual field definition of the receiving telescope; when the receiving telescope receives background light, obtaining a standard centroid position acquired by the CCD camera; starting the laser device, calculating the real-time centroid position of an image acquired by the CCD camera in real time, and calculating the deviation between the two centroid positions; and controlling the pitching and bearing of the first reflecting mirror until the deviation reaches an error tolerance, thus realizing the coaxial adjustment. The method provided by the invention is applicable to the coaxial adjustment of a laser radar receiving and transmission system.

The invention relates to industrial crushing equipment, in particular to a double-geared roller strong graded crusher capable of adjusting and controlling a particle size continuously. The crusher solves the problems of low degree of automation, high labor intensity, long construction period, high adjustment difficulty and the like of the conventional crusher during the adjustment of the particle size. The crusher comprises a base, a movable bearing block, a static bearing block, a static tooth roller and a movable tooth roller, wherein the movable bearing block is connected with the static bearing block by a pull rod; the static bearing block is locked with the pull rod; the movable bearing block can move to and fro along the pull rod by an adjusting gearbox driven by a hydraulic motor and a worm and worm wheel mechanism; a movable bearing block slide is arranged on the base; a hydraulic locking cylinder is mounted on the base; a compression sliding block which can extrude the movable bearing block is fixed at the front end of the piston rod of the hydraulic locking cylinder; an encoder is mounted in the adjusting gearbox; and a displacement sensor is mounted in the hydraulic locking cylinder and is connected with a programmable logic controller (PLC) control system. The crusher has the advantages of simple structure, simplicity and convenience in operation, short adjustment period, high production efficiency and degree of automation and the like, and can be widely applied to the field of industrial crushing.

The invention discloses a steel structure numerical control assembly center. The steel structure numerical control assembly center comprises a fixed device, a moving device, a T-shaped fixing seat and a long framework formed by splicing multiple sections of a steel structure framework. The T-shaped fixing seat is located in the middle of the long framework; the fixed device and the moving device are installed at the two ends of the long framework respectively; the fixed device is fastened to the steel structure framework through the T-shaped fixing seat to serve as a positioning reference; the moving device is installed on the steel structure framework through sliding blocks and sliding ways; the moving device is provided with a gear set, a servo motor and a speed reducer which are connected in sequence; a magnetic railing ruler and a gear rack connected with the gear set are installed on the two sides of the T-shaped fixing seat respectively; the magnetic railing ruler is composed of a ruler body and an inductor arranged on the ruler body; the inductor is connected with a control panel disposed on the fixed device through a data line. By means of the steel structure numerical control assembly center, a steel structure pipe fitting can be welded in an omni-directional and shifting mode, necessary work and work difficulty are reduced for workers, and the work efficiency and the equipment operation safety are improved.

The invention discloses an automatic gain control (AGC) device for a global system for mobile communication (GSM) digital optical fiber frequency-selecting repeater and a quick adaptive time slot method for the AGC device. The AGC device comprises a core logic processing device, a coprocessor, an analog/digital converter (ADC), a radio frequency (RF) numerical control attenuator, an RF frequency mixer and a low noise amplifier. The quick adaptive time slot method for the AGC device comprises an adaptive time slot recovering process and a quick automatic gain control process. The invention has the advantages that a time slot recovering threshold value is calculated adaptively, the steps of installing and debugging by engineering staff are reduced, a signal level input into the ADC can be adjusted to a target level value by the adjusting process, an overall adjusting period is short, signal quality is not influenced substantially, the gain balance of an uplink and a downlink which have small signal time slots can be ensured, and the connection quality of users is ensured.

The invention discloses a method and a device for limiting vehicle speed, and an overall vehicle. The method for limiting the vehicle speed comprises the following steps of: acquiring the current rotating speed of an engine and the current vehicle speed; determining the current gear of the overall vehicle according to the ratio of the current rotating speed of the engine to the current vehicle speed; and if the current rotating speed of the engine is larger than a rotating speed limit value corresponding to the current gear, controlling the current rotating speed of the engine to be reduced toa value which is smaller than or equal to the rotating speed limit value corresponding current gear. According to the method disclosed by the invention, the torque information required by the overallvehicle at the current gear can be directly calculated according to that different gears correspond to different rotating speed limit values, thus the fuel-injection quantity required by the engine when the vehicle speed is limited to be equal to a regulation stated vehicle speed limit value can be accurately output, and accurate control of the vehicle speed is realized. Meanwhile, in the controlprocess, the final output torque information when the overall vehicle is at different gears is directly determined according to the determined rotating speed limit value; a dynamic regulation processis not needed; the method is simple; the regulation process needs small workload; and the regulation period is short.

The invention proposes a local power coordinated control system and method of an active power distribution network, and belongs to the technical field of local power coordinated control of the active power distribution network. The local power coordinated control system is based on long-period economic optimized operation of the active power distribution network, the regulation period is short, load change can be effectively and dynamically responded, and the global optimized economic operation of the system also can be satisfied. In the system, a coordinated control strategy for distributed power generation and energy storage of the active power distribution network when a load changes in different situations is fully considered, the output of a distributed power source and a network-side power source can be adaptively adjusted, the active power distribution network can efficiently and economically run by means of power generation capability of the distribution power source, and meanwhile, the residual energy in the system can be reasonably regulated and controlled. By the method, the sharing proportion coefficients of the distributed power source and the network-side power source on the load change can be rapidly and accurately solved, the rapid response of a local system to the load change is achieved, and the safe and economic operation of the system is ensured.

The invention discloses a multi-layer upper and lower medicine box switching device which comprises a rack, a plurality of conveying belts arranged on the rack, a feeding mechanism arranged on the rack and used for feeding a medicine box to the conveying belts, and a discharging mechanism for moving the medicine box out to a designated position. The rack is provided with a first control mechanismfor controlling the conveying belts up and down, the first control mechanism comprises a sliding rail for connecting the conveying belts and a third driver for driving the conveying belts up and downon the sliding rail, the conveying belts are connected to the rack in a sliding manner along the sliding rail through the third driver, and after grabbing of medicinal materials in the medicine box fed to the conveying belts through the feeding mechanism is finished, the conveying belts are moved to the discharging mechanism through the first control mechanism to convey out the medicine box. The medicine box with medicinal materials to be grabbed can be timely moved to an operating table to wait grabbing after being acquired from the feeding conveying belt, the medicine box with medicinal materials grabbed can be automatically moved to the return conveying belt again for transmission, the operation difficulty is low, the labor intensity is low, the switching period is short, and the efficiency is high.

The invention provides a dynamic updating method for an integrated plan and a graph. The method comprises the steps of extracting achievement data from an achievement database according to a captured demand adjustment instruction, and generating a rule modification base drawing, wherein the achievement data is parcel map spots, the parcel map spots have additional attributes, and the additional attributes include a global identifier code and a timestamp; receiving editing operation on the plan modification base drawing, updating the parcel map spots of the plan modification base drawing according to the type of the editing operation, and performing storage to obtain plan compilation achievement data; and capturing updating and storage operations, performing two-way circular comparison on the plan compilation achievement data and the achievement database according to the global identifier code and the timestamp, and realizing storage of the plan compilation achievement data and updating of the achievement database. The invention furthermore provides a dynamic updating apparatus for the integrated plan and the graph. The frequent achievement updating demand of the integrated plan is met and the scientific standard ordered management is realized.

The invention discloses a high-precision physical ability comprehensive assessment system and method with an automatic error correction function, the system comprises an information input module, a process supervision module, an assessment judgment module, a system management module, a background storage module and a review analysis module, and the output end of the information input module is in control connection with the input end of the process supervision module. The set joint comparison module is combined with a machine trial judgment result and a primary judgment result to carry out final judgment, the judgment result is prevented from being influenced by human factors, the system judgment accuracy is improved, corresponding error correction guidance is pointedly made for individuals through the analysis error correction module, the user experience is improved, and the user experience is improved. The judgment rule of the system is adjusted through the rule input module, the adjustment process is simple, the adjustment period is short, the expandability of the system is improved, meanwhile, the stored assessment data and the cloud data are conveniently combined for transverse comparison through the set retrieval comparison module, and the practicability of the system is improved.

Provided is a mechanism of a novel threading tool. The mechanism is hollow along the overall-length direction of a handle portion of a cutter bar, a head of the cutter bar is provided with a blind hole, a threaded though hole is arranged at the bottom of the blind hole, a slide block is installed in the blind hole on the head of the cutter bar, a through hole is arranged on a waist portion of the slide block, simultaneously a threaded hole arranged at the top is communicated with the through hole on the waist portion, and the through hole on the waist portion is similar to a cross section of a long threaded cutter head. The slide block is installed in the blind hole on the head of the cutter bar to enable the through hole on the waist portion to be aligned at the hollow portion in the overall-length direction of the handle portion of the cutter bar. The long threaded cutter head is installed in the hole on the waist portion of the slide block and the hollow portion in the overall-length direction of the cutter bar from the tail portion, the length of a cutter point exposes for adjusting the slide block through an adjusting bolt, the long threaded cutter head is fixed through a locking bolt, the slide block is fixed through a corresponding locking bolt, and finally the adjusting bolt is locked through a locking nut. The novel threading tool can be used after the adjusting bolt is locked through the locking nut.

The invention discloses a rotating part limiting mechanism and an application method thereof, and belongs to the field of mechanical design. The rotating part limiting mechanism comprises a rotating part, a limiting nail and a fastening part, and further comprises a travel adjusting sleeve and a neutral position sleeve; an arc groove is formed in the rotating part; the circle center of the arc groove is coaxial with the rotating part; a round hole is formed in the side wall of the arc section of the arc groove; the diameter of the round hole is larger than the groove width of the arc groove; the limiting nail is a fixed part, and the axis thereof is positioned on a theoretic arc line of the arc groove; inner holes of the travel adjusting sleeve and the neutral position sleeve can be arranged in a way to match the limiting nail, and are fixed on the limiting nail through the fastening part; the arc groove with the round hole is formed, and is respectively matched with the neutral position sleeve and the travel adjusting sleeve; and the rotating part limiting mechanism realizes limitation of a neutral position and a rotating travel of the rotating part in a time sharing manner according to differences of working conditions, and is simple in structure, low in production cost, short in debugging and adjusting periods, simple in operation and relatively high in practical value.

The invention relates to a superheat degree-based aluminum electrolysis energy balance adjusting method and system and an aluminum electrolytic cell. The method comprises the steps of: (1) presettinga standard superheat degree interval, and collecting a superheat degree measurement value of an electrolyte; and (2) comparing the superheat degree measurement value with a standard superheat degree interval, and if the superheat degree measurement value is higher than the upper limit of the standard superheat degree interval, increasing the heat exchange amount of the cell wall, if the superheatdegree measurement value is lower than the lower limit of the standard superheat degree interval, reducing the heat exchange amount of the cell wall, and if the superheat degree measurement value is within the standard superheat degree interval range, not carrying out adjusting. Heat balance of the electrolytic cell is reversely adjusted from a heat dissipation side (namely a heat output end) of the electrolytic cell and is independent of energy balance and material balance adjusting parameters of an input end, so that decoupling control over the superheat degree of the electrolytic cell and other technological parameters is achieved, electrolytic aluminum performance optimization and stable operation during energy input fluctuation can be achieved, and a good energy-saving effect is achieved.