1074results about How to "Improve job stability" patented technology

The invention discloses a smoke exhaust blockage control method of a gas water heater and a control system thereof. The controller drives and controls the blower rotating speed of the gas water heater by changing the drive current, judges whether the smoke exhaust resistance of the water heater exceeds the warning limit based on the real-time monitoring on the blower rotating speed, closes the gas passage of the water heater and warns the water heater user when the smoke exhaust resistance exceeds the warning limit, and judges whether air supply for compensation is necessary when the smoke exhaust resistance is lower than the warning limit. The invention aims to provide the detecting method for judging the smoke exhaust condition at the air outlet by detecting the blower rotating speed, and the control method and the control system for controlling to improve the combustion working condition of the constant-temperature gas water heater in case of smoke exhaust blockage and improve the working stability of the water heater.

The invention mainly aims to provide a variable structure adaptive feed type rope saw for cutting composite pipes with different diameters amphibiously. The rope saw consists of a clamping mechanism, a cutting mechanism, a feeding mechanism and a tensioning mechanism; the clamping mechanism comprises a V-shaped plate, the V-shaped plate is formed by folding two mutually independent half plates, each half plate is connected with respective sliding block, and the sliding block and a guide rail I form a sliding pair; the two half plates fixed on respective sliding blocks can move relatively in the radial direction along the guide rail I; the half plates are connected with a hydraulic cylinder respectively, and the hydraulic cylinder is connected with a control system; and the lower ends of the half plates are connected with clamping claws through fixing pins, and the rear ends of the clamping claws are connected with the hydraulic cylinder. The rope saw is suitable for the pipes with diameters of phi 300 to phi 1,500 millimeters, so the diameter range of the cut pipes is greatly expanded; and meanwhile, different cutting speeds can be automatically adjusted according to different cutting states to adapt the rope saw, and the cutting efficiency is improved.

The invention discloses a real-time adjustable and controllable hanging type underground oil and water separating system, which comprises an underground sleeve pipe, a water injection oil pipe, an oil extracting oil pipe and a flow rate control valve, wherein the flow rate control valve is arranged at the wellhead part, the aboveground ground is provided with a visual control device, a hanging type three-way joint connected with the oil extracting oil pipe, an oil and water separator and the water injection oil pipe is arranged in the sleeve, the oil and water separator is connected with an electric submersible pump unit, a water injection pressure regulating device is arranged on the water injection oil pipe, a flow rate and pressure monitoring instrument is arranged in the electric submersible pump unit, a flow rate and pressure monitoring instrument and a regulating valve are arranged in the flow rate control valve, monitoring instrument cables and signal transmission cables are respectively connected among the electric submersible pump unit, the water injection pressure regulating device, the flow rate control valve and the visual control device, the visual control device converts received real-time flow rate and pressure signals into visual data to be output, and the work of the whole system is regulated and controlled. The hanging type underground oil and water separating system has the advantages that the stability is high, the treatment capability is high, and the hanging type underground oil and water separating system can be widely applied to an oilfield same-well production injection process.

The invention provides a top gate self-alignment metal oxide semiconductor TFT and a manufacturing method therefor. According to the manufacturing method of the top gate self-alignment metal oxide semiconductor TFT, a light shielding layer is arranged below an active layer, so that the active layer can be protected from light ray irradiation, and a threshold voltage negative floating phenomenon ofthe TFT can be avoided; and in addition, the light shielding layer is connected to a source, so that a stable voltage is generated on the light shielding layer to avoid generation of a floating gateeffect, thereby effectively improving operational stability of the TFT. The top gate self-alignment metal oxide semiconductor TFT, prepared by the abovementioned method, does not generate the threshold voltage negative floating phenomenon and the floating gate effect and has relatively high working stability.

The invention discloses a high strength steel plate hot stamping die for automobile parts. The high strength steel plate hot stamping die for the automobile parts mainly consists of a male die body (a male die and a male die connecting fixing plate), a female die body (a female die and a female die connecting fixing plate), blank holders, cooling pipelines, connecting devices, positioning devices, U-shaped connecting hoses and pipe joints. The male die, the male die connecting fixing plate, the female die, the female die connecting fixing plate and the blank holders are respectively manufactured, and grooves used for fixing the cooling pipes are respectively processed. The cooling pipelines are manufactured into shape-following cooling pipelines which are consistent with the shape trends of the parts by adopting copper pipes, are respectively arranged in the grooves respectively arranged in the male die body, the female die body and the blank holders, and are externally connected with a master cooling pipeline through the U-shaped connecting hoses and the pipe joints to form a cooling closed loop. The hot stamping die disclosed by the invention is simple and compact in structure and convenient in maintenance, is reliable and practical, can be used for evenly and rapidly cooling the parts during a stamping process and is in favor of enhancing the working stability per se and prolonging the service life per se.

The invention discloses a dual-mode optical coding probe and a preparation method thereof. The probe is in a three-layer core-shell structure, the first-layer core is a gold nano bar, the second-layer shell is silica, the third-layer shell is a cadmium telluride quantum dot, the second-layer shell is wrapped on the outer side of the first-layer core, the third-layer shell covers the outer side ofthe second-layer shell in a sticking mode, and the outer surface of the first-layer core is stuck with Raman molecules which are wrapped by the second-layer shell. The preparation method of the dual-mode optical coding probe comprises the following steps of: 1, preparing an original gold nano bar solution; 2, preparing gold nano bars marked by the Raman molecules; 3, preparing a gold nano bar andsilica metal medium composite nano ball solution; and 4, preparing the dual-mode optical coding probe. The dual-mode optical coding probe has the joint encoding capacity of fluorescence and SERS (Surface Enhanced Raman Scattering), and enhances the optical coding capacity. The preparation method of the dual-mode optical coding probe has a simple process and high repeatability.

The method includes steps: parsing object to be tested, picking up tested information from the object tested; displaying the picked test information, receiving test information input from user; generating test case based on the picked test information and the inputted test information; combining the test case and object to be tested creates testing target codes; running the testing target codes implements test for robustness of software product. The invention also related to device for testing robustness of software product. The invention can realizes automatic generation and automatic extraction for test information of tested object.

The invention discloses an aluminum electrolysis cell cathode structure of horizontal current in controllable regulation aluminum liquid. A continuously or partially bulged cathode steel bar is used or a cushion material with high electric conductivity is cushioned at the partial position between a common rectangular steel bar and a cathode carbon block, so that the distribution and the size of the horizontal current in the aluminum liquid can be readjusted by the cathode structure. Structural parameters are determined by the cathode structure according to an actual groove-type design, the horizontal current in the aluminum liquid can be obviously reduced when the cathode structure is used in an aluminum electrolysis cell, and the distribution of the horizontal current in the aluminum liquid can be optimized to prevent an area with higher horizontal current density from being superposed with an area having a larger vertical magnetic field, so that the effects of weakening the vertical fluctuation of the aluminum liquid and stabilizing the horizontal motion of a melt are achieved; therefore, electrolysis can be operated within a relatively short electrode distance, energy consumption can be reduced greatly, and the cathode structure is easy and convenient to process and is easy to realize.

The invention belongs to the technical field of safety devices for earthquake disasters, and relates to an intelligent earthquake bed which solves the technical problems of complicated structure, low work stability and the like in the prior art. The earthquake bed comprises a bedstead, wherein two bed board shafts which are distributed along a long shaft of the bedstead are arranged on the bedstead; a bed board is fixed on each bed board shaft; a power mechanism capable of enabling two bed boards to rotate in an opposite direction and enabling a human body positioned on the bed boards to fall into the bedstead is arranged between the bedstead and the bed board; after the human body falls into the bedstead, the bed boards can be driven by the power mechanism to cover over the human body; the power mechanism is connected with a control circuit; and a pressure sensor and an earthquake sensor are connected to the control circuit. The intelligent earthquake bed has the following advantages of: reasonable design, simple structure, high automation degree, convenient operation and use, high safety performance, capacity of effectively protecting the human body when an earthquake occurs and avoiding injuries and deaths, high work stability, stable rotation of the bed boards, and no damage to the human body when the human body falls.

The invention discloses a COT-control-based ripple-compensation-based buck circuit power management chip comprising a power input pin, an output voltage pin, a grounding pin, an enabling pin, an over-current detection pin, a feedback pin and a switch SW pin. A reference circuit module, an over-current protection module, a zero-current switching module, a control logic and soft starting module, a constant conduction time generation module, a comparator module, a ripple compensation module, a drive module, and two on-chip switching tubes are arranged inside the chip. According to the power management chip provided by the invention, ripples can be superposed at the reference voltage terminal inside the chip. Compared with the traditional method superposing the ripples with the feedback voltage sampling terminal, the provided technical scheme enables the traditional COT-control-based off-chip RC passive compensation network to be reduced; and the on-chip ripple compensation module uses the active compensation way with the pseudo inductive current ramp, so that the low resistance and capacitance are used and no accumulation error of the used compensated waveform is caused.

The invention relates to electric-power, electron and electric-energy circuits, aim to provide an isolated soft switching two-diode forward resonant DC / DC (direct-current/direct-current) circuit. The circuit comprises a power source, two switching diodes, two clamping diodes, a high-frequency isolation transformer, a primary winding, a secondary winding, an output rectifier diode and an output filter capacitor, and further comprises an input side inductor, a resonant inductor and a resonant capacitor. The resonant capacitor Cr is connected with the power source in parallel, and the input side inductor is located between the resonant capacitor and the power source. The resonant inductor is connected with the transformer primary winding in series. Load formed by the resonant inductor, the resonant capacitor and the output voltage forms resonant circuits in series. By the isolated soft switching two-diode forward resonant DC / DC circuit, a power switching diode operates while zero voltage switches on and quasi-zero current is in switched off state, voltage at two ends of the power switching diode is reduced, overlap time of current passing through the power switching diode is reduced, and switching consumption of the power switching diode is reduced; energy on parasitic inductors or capacitors can be recovered, and energy converting efficiency is improved; energy consumption on the circuit is reduced, and energy is saved.

The invention relates to a dual-damping and dual-power-generating combined damping device comprising a magnetorheological damping temperature difference power generating type damper and an electromagnetic damping temperature difference power generating type damper which are spaced by a magnetic isolating material and a sealing material to form working spaces independent from each other. The magnetorheological damping temperature difference power generating type damper and an electromagnetic damping temperature difference power generating type damper form a synergistic dual-damping damping and synergistic dual-power-generating working mode. The device is of a novel device structure formed by integration, the objective of optimizing and improving comprehensive performance of the device is achieved, and the device is applicable to damping of automobiles, trains, ships, tanks, airplanes, machinery, projects and bridges and vibrating energy recycling for power generation.

The invention discloses a travelling-wave linear ultrasonic micromotor which belongs to the technical field of ultrasonic motors and is mainly characterized by comprising a stator, wherein the stator is shaped as an annular hollow slice, and a piezoelectric ceramic ring is arranged on the surface of the stator; driving mechanisms are distributed on the outer edge of the stator, the lateral edges of the driving mechanisms are provided with a plurality of guide rails along the axial direction of the stator, and the driving mechanisms correspond to and is in contact with the guide rails; and a pretightening mechanism is connected to one end surface of the stator and in contact with the guide rails. The invention aims at providing the travelling-wave linear ultrasonic micromotor which has the advantages of compact structure, small occupying space, stability of working and high precision and is suitable for the aspects of optical lens, biology, medical treatment, micromachine, the science and technology for national defense, and the like.

The invention discloses a method for preparing a thin single cell thermal battery in a laminated mode based on a molten salt thermal spraying technology and the thin single cell thermal battery, belonging to the field of battery preparation technology. The method comprises the following steps: (1) preparing positive molten salt, and spraying the positive molten salt on a collector plate to form a positive electrode layer; (2) preparing electrolyte molten salt, and spraying the electrolyte molten salt on the positive electrode layer to form an electrolyte layer; (3) preparing negative molten salt, and spraying the negative molten salt on the electrolyte layer to form a negative electrode layer; or, setting a lithium-boron alloy negative plate on the electrolyte layer; and (4) setting the collector plate on the negative electrode layer or the lithium-boron alloy negative plate, and performing compression moulding to obtain the thin single cell thermal battery. The preparation method disclosed by the invention is simple, and can be used for improving the discharge capacity and stability of the battery.

The invention provides an electric automobile air conditioning system in order to overcome the defects that according to an existing automobile air conditioning system adopting a four-way reversing valve, reversing is delayed and is not in place. The electric automobile air conditioning system comprises a refrigerant circulation system and a cooling liquid circulation system. Refrigerants in the refrigerant circulation system flow in the same direction under the working conditions of high-temperature refrigeration, low-temperature refrigeration and normal-temperature refrigeration and heating. Air inside an automobile is heated depending on the cooling liquid circulation system, the refrigerant circulation system is only used for refrigeration, and the refrigerants inside the refrigerant circulation system keep flowing in the same direction under all the working conditions; in this way, the defects that according to the existing air conditioning system, reversing is delayed and is not in place are overcome, it is avoided that due to reversing of the refrigerants, refrigeration or heating is delayed, the comfort of an air conditioner is improved, and the problems that an outdoor heat exchanger is prone to frosting and difficult to defrost are solved.

The invention discloses a plasma air purification-sterilization device. The air purification-sterilization device mainly comprises a shell, a circulating fan, a primary filter, a plasma reactor, a negative-ion generator, a high-efficiency air filtration device and an MCU (Micro Controller Unit). The air purification-sterilization device is also provided with a circuit protection system to guarantee the sable and safe work of the whole device. A waveform pole plate and an electricity discharging metal wire parallel to the waveform pole plate are adopted to serve as a basic reaction unit of the plasma reactor, and the waveform pole plate can disturb the air entering the waveform pole plate to furthest diffuse the air to the periphery of an electrode wire, so that the aim of complete sterilization is achieved. The plasma reactor works under high voltage and can generate high-concentration plasma for high-efficiency sterilization, and a circuit protection module is arranged so as to allow the device to work stably and reliably. The air purification-sterilization device is also provided with a temperature sensor, an air quality sensor, a dust sensor and a human body infrared detection device which are capable of detecting environment conditions in real time and are matched with the MCU, so that the automatic detection and control on air purification and sterilization are achieved.

The invention relates to the field of a wire and a cable, in particular to a high-temperature resistant thin insulating wire used for power and signal transmission in the field of aviation. The cross section of a high-temperature resistant dual-layer insulating seamless lapped wire respectively comprises a twisted copper conductor, an inner insulating layer of a lapped polyimide film and an outer insulating layer of a lapped Teflon film from inside to outside. Compared with the traditional insulating wire for aviation, the wire in the invention has the characteristics of high-temperature resistance, light weight and low cost.

The invention discloses a shock-absorbing crushing device for traditional Chinese medicine processing, which comprises a machine body, the outer wall of which is covered with a ceramic layer, a circular feeding port is opened on the upper side of the machine body, and a feeding hopper is connected to the feeding port , the bottom of the feed hopper matches the size of the feed port, and the left and right feed baffles are respectively arranged at the left and right ends of the lower side of the feed port, and the left feed baffle and the right feed The baffle is a semicircular baffle arranged symmetrically. This invention is a shock-absorbing crushing device for processing traditional Chinese medicine, which can control the feeding amount and feeding speed, and effectively improve work efficiency. Two crushing mechanisms are arranged inside the machine body. The material is fully crushed, and the two crushing mechanisms are driven by one motor, which effectively reduces energy consumption, greatly improves the crushing efficiency, and makes the medicinal materials crushed more fully. In addition, it can effectively reduce the vibration generated during the operation of the device and improve the operation of the device. stability.

The invention relates to the battery field, in particular to a current collector, a pole piece of the current collector and a battery. The current collector comprises an insulating layer and a conducting layer, wherein the insulating layer is used for bearing the conducting layer; the conducting layer is used for bearing an electrode active material layer, the conducting layer is located on at least one surface of the insulating layer, and the thickness of the conducting layer is D2, wherein D2 meets the relation of 300nm<=D2<=2 microns; the current collector also comprises a protective layerarranged on at least one surface of the conducting layer. Through the current collector, short-circuit resistance generated in a short circuit when the battery is abnormal can be increased, so that ashort-circuit current is substantially reduced, short-circuit heat output is greatly lowered, and the safety of the battery is improved; meanwhile, the protective layer can improve the mechanical strength of the conducting layer, so that the safety of the battery is further improved; and besides, the conducting layer can be prevented from being damaged or subjected to oxidation, corrosion and other phenomena, so that the working stability of the current collector is remarkably improved, and the service life of the current collector is remarkably prolonged.

The invention relates to an automatic monitoring method and a device for an inkjet head of a printer. In this method, the collected detection pattern information is compared with the pre-stored standard pattern information. If the two are consistent, the printer will continue to print; Clean the inkjet head. After the cleaning process is completed, move the inkjet head back to the printing area and restart the printing operation. Compared with the prior art, the cleaning of the inkjet head in the present invention is not carried out regularly according to the preset time, but decides whether to clean according to the real-time working state of the inkjet head. It has high degree of automation, obvious cleaning effect and good working stability. It can monitor the working status of the inkjet head in real time, and clean the inkjet head in time according to the monitoring results. The data processing volume is small and the processing speed is fast. features.

The invention relates to a phase-transition self-temperature-regulating heat-preserving facing brick of an external wall, which is an integrated structure compacted by a phase-transition heat-preserving layer and an inorganic facing layer, wherein the phase-transition heat-preserving layer is mixed by proportion and compacted by hull-type expanded perlite heat-preserving aggregates, phase-transition temperature-regulating aggregates and cements; the inorganic facing layer is mixed by quartz sand, calcium carbonate, calcium oxide, cement and silicon oxide powders; and the phase-transition temperature-regulating aggregate is made of phase-transition cores and encapsulated hulls. The manufacturing method not only effectively solves the encapsulation problem of the phase-transition material, leads the prepared phase-transition self-temperature-regulating heat-preserving facing brick of the external wall to have excellent heat-preserving performance, waterproof performance and permanent anti-ageing performance, but also radically solves the obsolescence of thermo-physical property and the leakage problem of phase-transition material in the circulation process. The facing brick has the advantages of light weight, strong adhesion strength, large compressive strength, heat insulation, heat preservation, waterproof and moisture-proof performances, obvious energy-saving effect, and the like.

The invention discloses a fire alarm control system which comprises a master controller, a wireless communication module and a power module, wherein the wireless communication module is connected with the master controller; the input end of the master controller is connected with a signal acquisition module and a camera; the output end of the master controller is connected with a water spray suppression device, a guiding system, a broadcasting system and a scavenger fan; the guiding system is connected with an indicator lamp module; the broadcasting system is connected with a loudspeaker box; the wireless communication module is connected with a monitoring host; the signal acquisition module, the camera, the guiding system and the broadcasting system are arranged at the stairway in the building; the water spray suppression device is arranged at the top in the building; the scavenger fan is arranged on the wall and communicated with the outdoor; the monitoring host is arranged in the residential area monitor room. The fire alarm control system can be used for indicating the safe escape direction and displacing the dense smoke outdoors through the scavenger fan while reducing the fire by the water spray suppression device, and has the advantages of high control reliability, high working stability, long service life, strong practicability, good using effect and convenience in popularization and use.

The invention relates to a kind of linearization method of power amplifier in signal process field, the invention acquires the enveloped spectrum information of nonlinear distorted signal of power amplifier from front feedback signal counteraction loop, and feedbacks then to the input channel of power amplifier through degenerative feedback loop, and superimposes and modulates the enveloped spectrum, with the input signal, and forms the input signal pre-skewness, realizes the linear amplification of power amplifier. The device includes front feedback signal counteraction model, nonlinear skewness enveloped spectrum degenerative feedback model which is the enveloped spectrum information acquired from the front feedback signal counteraction model, and feedbacks it to the input channel of the power amplifier to be modulated into the enveloped spectrum.

The invention discloses a mains complementation controller for a solar street lamp. The controller comprises a solar cell panel, a charging module, a microprocessor, a constant-current output module, a switching power supply, a voltage detection module and a battery. The invention also discloses a control method of the controller. The controller is skillful and reasonable in structural design, when the electric quantity stored in the battery by the solar energy is insufficient, the controller is switched to a mains supply automatically in a seamless mode, the effect that the solar energy is used preferentially and the mains supply serves as a supplement can be effectively achieved, and charging and discharging can be controlled automatically according to different working parameters and states, so that the charging and the discharging are kept at the optimal states, the utilization efficiency of the solar energy is improved, the energy resources are effectively saved, the whole process is automatic, and the intelligent degree is high. The control method is simple in step, easy to implement, capable of supplying electricity by the battery and achieving seamless switching to the mains supply, effectively guaranteeing the sufficient utilization of solar energy resources, greatly prolonging the service life of the battery and reducing the maintenance cost and beneficial to popularization and application.

The invention discloses a two-dimensional topological photonic crystal cavity, a design method thereof, and application in a laser. The two-dimensional topological photonic crystal cavity comprises aplurality of photonic crystal supercells that have a vortex-type structure change around the cavity center of the two-dimensional topological photonic crystal cavity, and the energy band of the plurality of photonic crystal supercells has a Dirac point at the equilibrium position where the vortex-type structure changes. The two-dimensional topological photonic crystal cavity, also known as a Diracvortex cavity, has the characteristics such as large mode field area, large free spectral range, narrow beam divergence angle, degeneracy of any mode and compatibility with a variety of substrate materials, and can be applied to surface emitting semiconductor lasers to ensure that the laser can still work stably in both single transverse mode and single longitudinal mode when outputting at largearea and high energy.

The invention discloses a multifunctional intelligent anti-collision device of an automobile. The device comprises an air bag, anti-collision detecting units and an anti-collision controller. The anti-collision detecting unit comprises a front camera, a head ultrasonic distance measurement sensor, a rear camera, a tail ultrasonic distance measurement sensor, an infrared human detection sensor, an automobile speed sensor and an acceleration sensor. The anti-collision controller comprises a DSP digital signal processor, a voltage conversion circuit module, a touch liquid crystal display, a Flash memory, a USB communication circuit, a GPRS wireless communication module, a clock circuit module, a signal conditioning circuit, a voice play circuit and a relay. The multifunctional intelligent anti-collision device of the automobile is simple in structure, reasonable in design, convenient to use and operate, capable of avoiding accidents such as reversing collision, collision with an obstacle ahead due to acceleration, collision with a rear obstacle due to emergency braking, secondary collision after a car accident and the like, complete in functions, high in working stability and reliability, high in practicality and convenient to popularize and use.

The invention discloses a double-flexible-cantilever-beam vibration measurement and control device and method based on laser binocular vision. The device comprises two flexible cantilever beams connected in series. The flexible cantilever beams are provided with piezoelectric ceramic drivers, piezoelectric ceramic sensors and accelerometers. The device also comprises a line laser, an industrial camera, a servo motor and a planetary speed reducer. The line laser generates a laser light resource, and combined with the industrial camera, in a complete non-contact mode, the bending vibration of the cantilever beams is detected. The speed of the servo motor is reduced by the planetary speed reducer, and the servo motor is used for controlling the rotation of the cantilever beams, receiving a vibration suppression signal obtained by a vibration control algorithm and suppressing the vibration of the cantilever beams at the same time. The device can be used for the vibration measurement and control of a space flexible joint, laser is used as the light resource without the affection of sun light, thus the working stability is maintained, and a reference is provided for the vibration measurement and vibration suppression of a flexible aerospace structure.

The invention discloses an amino silane grafted and modified sepiolite adsorbent and a preparation method and application thereof. The method comprises the following steps: (1) adding sepiolite in a hydrochloric acid solution with the concentration being 1-4 mol/L to pre-modifying the sepiolite, and then carrying out thermal activation at the temperature of 200-300 DEG C to obtain pretreated sepiolite; and (2) reacting the pretreated sepiolite with an amino silane coupling agent to obtain the amino silane modified sepiolite adsorbent. While the prepared sepiolite adsorbent has high adsorptioncapacity to carbon dioxide, the cost for capturing carbon dioxide in a solid amine adsorption technology is greatly reduced, and the adsorbent has outstanding cyclic regeneration and adsorption properties, is good in working cycling stability and good in thermal stability.

The invention discloses an intelligent controller of an overhead working truck. The controller is provided with an ARM control module, and is characterized in that: the ARM control module is connected with a power conversion module, a CAN bus communication module, an RS232 communication module, a switch quantity input module, an analogue quantity input module, a PWM output module, an analogue quantity output module, an audio output module and a watchdog module, wherein the modules are connected with the ARM control module through a photoelectric isolation circuit respectively. The ARM control module consists of an ARM processor, an SDRAM memory, a Flash memory, a reset circuit and a programming interface. The intelligent controller disclosed by the invention forms a complete electric control system of the overhead working truck, senses the working information of the overhead working truck by obtaining the data of each sensor, realizes the basic moving functions of an arm support and the intelligent functions of tipping prevention, collision prevention, self damage prevention, automatic collection/expansion and the like by controlling each output port, and can ensure safety, reduce the operation difficulty and improve the intellectualization level.

The invention discloses an array substrate, a preparation method thereof and a display panel, which are used for preventing a semiconductor region of an active layer of a thin film transistor from being illuminated, improving the working stability of the thin film transistor, avoiding uneven display pictures and improving the display effect. The array substrate comprises a substrate body, a shading layer located on the substrate body, a buffer layer located on the shading layer, an active layer located on the buffer layer and a shading part. The buffer layer is provided with a groove. The active layer includes a semiconductor region, and a first conductive region and a second conductive region connected to the semiconductor region. The semiconductor region and the shading part fill the groove. The orthographic projection of the shading part on the substrate is annular, the side surface of the semiconductor region is completely surrounded by the shading part, and the first conductor region and the second conductor region are located above the shading part and the semiconductor region. The orthographic projection of the shading layer on the substrate covers the orthographic projection of the semiconductor region on the substrate.