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52results about How to "Self-correcting" patented technology

Parallel flow air conditioner and defrosting control method thereof

The invention relates to a concurrent flow air conditioner and a defrosting control method thereof. The air conditioner comprises an indoor copper tube finned heat exchanger, an outdoor concurrent flow heat exchanger, and a throttling capillary tube and a bypass circuit connected between the concurrent flow heat exchanger and the copper tube finned heat exchanger. The method comprises the following steps: 1) using a temperature sensor to detect the temperature Tx on the temperature concurrent flow heat exchanger; 2) judging whether Tx is smaller than the preset temperature value T1; not switching on the bypass circuit when Tx is larger than T1, and turning on the bypass circuit partly or completely when Tx is smaller than T1; and 3) cycling the step 2 after a period of time. The concurrent flow air conditioner and the defrosting control method thereof have the advantages that the air conditioner can defrost uninterruptedly, thereby improving the heating comfort; the bypass circuit can be turned on partly or completely according to the defrosting requirements, thereby realizing bypass defrosting without interrupting the heating process; relevant parameters are characterized by self adaptation and self modification, and the air conditioner has simple control and obvious technical effects.
Owner:TCL CORPORATION

Direct-reading wireless gas meter based on illumination-vibration complementary environment energy collecting technology

The invention discloses a direct-reading wireless gas meter based on the illumination-vibration complementary environment energy collecting technology. The direct-reading wireless gas meter comprises a membrane type basic gas meter, three direct-reading infrared encoders, three 7 to 1 switch modules, an infrared encoding collecting and data processing module, an illumination environment energy collecting and communication module, a vibration environment energy collecting module and the like. The three direct-reading infrared encoders output analog quantity encoding values, and gas digital quantity data is uploaded to the illumination environment energy collecting and communication module through the three 7 to 1 switch modules and the infrared encoding collecting and data processing module. The direct-reading wireless gas meter has the advantages the electric energy of the gas meter is taken from the environments, and the illumination-vibration complementary environment energy collecting scheme designed according to power demands is good in usability; a single-ring semicircular encoding process is simple, and convenient in error correction; environment energy collecting efficiency is increased by a micro power consumption management circuit; an EnOcean standard protocol low in wireless communication frequency is good in diffraction ability; environment energy utilization is optimized by a polarized relay and the interrupt awakening technology.
Owner:ZHEJIANG UNIV

Anti-radiation double-mode phase-locked loop circuit

The invention discloses an anti-radiation double-mode phase-locked loop circuit comprising a voltage controlled oscillator and a charge pump, wherein the anti-radiation double-mode phase-locked loop circuit further comprises two frequency division phase discrimination modules, which are separately connected with an output end of the voltage controlled oscillator, each frequency division phase discrimination module comprises a frequency divider unit and a phase frequency detector, which are connected in sequence, the frequency divider unit accesses an output signal of the voltage controlled oscillator, and a group of control signals is output to the phase frequency detector after the signal is subjected to the frequency division; a logic circuit module, used for separately receiving two groups of control signals output by the two frequency division phase discrimination modules to finally output multiple paths of control signals; and a charge pump control module, connected with the charge pump and comprising a plurality of control switches, wherein the control switches respectively receive the control signals output by the logic circuit module so as to control the on-off of the charge pump. The anti-radiation double-mode phase-locked loop circuit disclosed by the invention can automatically correct error signals, has an anti-radiation function, and has the advantages of simple structure, small power consumption, being able to eliminate the influence of irradiation effect to the circuit.
Owner:NAT UNIV OF DEFENSE TECH

Two-dimensional long-range surface profile detection device and detection method

ActiveCN106840030AQuickly realize two-dimensional high-precision scanning measurementRealize two-dimensional high-precision scanning measurementUsing optical meansBeam splitterLight beam
The invention provides a two-dimensional long-range surface profile detection device. The device comprises a monochromatic light source, a two-dimensional array structure pi-phase plate, a beam splitter prism, a guide rail, a pentagonal prism arranged on the guide rail, a lens, a rectangular prism module and a surface profile detector, wherein the monochromatic light source is set to emit a light beam; the beam penetrates through the two-dimensional array structure pi-phase plate, enters the beam splitter prism, enters the pentagonal prism after being split by the beam splitter prism, enters a to-be-detected mirror after being refracted by the pentagonal prism, then is reflected back to the pentagonal prism after being reflected by the to-be-detected mirror, is refracted again through the pentagonal prism, then sequentially penetrates through the beam splitter prism, the lens and the rectangular prism module to the surface profile detector, and forms a measurement light spot on the surface profile detector. According to the two-dimensional long-range surface profile detection device, two-dimensional information of the surface of an optical element is scanned through movement of the guide rail, and large-scale optical element surface quality detection and high-precision bending mechanism detection can be realized.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI

Battery health degree detection method and device

The invention discloses a battery health degree detection method and device, and belongs to the technical field of battery detection, and the method comprises the following steps: detecting the voltage and current of a battery, and obtaining a voltage value and a current value; detecting alternating current impedance values of the battery under different frequency currents; establishing a deep learning model, and obtaining a battery health degree estimation value SOH1; obtaining a charging and discharging efficiency estimation value through a charging and discharging efficiency calculation formula; according to the voltage value, the current value and the charging and discharging estimation value, establishing a deep learning mode, and obtaining a battery health degree estimation value SOH2; obtaining a battery health degree estimation comprehensive value SOH through an information fusion algorithm; and carrying out optimization calibration on the battery health degree estimation comprehensive value SOH to obtain a battery health degree calibration value. Compared with the prior art, the battery health degree detection method and device have the advantages that the self-repairing capability is realized, and the detection precision is high, and online learning optimization can be realized, various environments are adapted, and the influence of detection conditions is avoided.
Owner:GUANGDONG INST OF INTELLIGENT MFG

A hydraulic-based self-correction system for small and medium diameter deep hole machining

The invention is applied to the field of small and medium diameter deep hole processing, and in particular relates to a hydraulically-based self-correcting system for small and medium diameter deep hole processing. Including inner rotary body, outer rotary body and driving mechanism; the inner rotary body is sleeved on the outer periphery of the drill pipe and fixed relative to the drill pipe; cutting fluid is filled between the inner rotary body and the outer rotary body so that the inner rotary body and the outer rotary body A flow channel is formed between the bodies, and the flow channel includes a plurality of wedge-shaped flow channels uniformly distributed in the circumferential direction. When the driving mechanism drives the inner rotary body to rotate, the cutting fluid enters the small end from the large end of the wedge-shaped flow channel, and the superposition of pressure flow and shear flow generates Oil film pressure realizes self-centering and self-correction of drill pipe. The present invention forms a wedge-shaped flow space between the wedge-shaped entity and the outer sleeve. Under normal conditions, the oil film pressure in the wedge-shaped space provides a circumferentially symmetrical self-centering force; when the drill pipe is deflected, the wedge-shaped space will generate oil film pressure, that is, self-correction The drill pipe can be "pushed back" to the correct axis by using the self-correcting force, so as to realize the self-correction of the axis deviation.
Owner:NANJING UNIV OF SCI & TECH

False touch correction system and method suitable for production line

The invention relates to the technical field of production line detection, aims to solve the problem of product false rejection caused by false triggering of a detection device, and provides a false touch correction system suitable for a production line, which comprises a first photoelectric sensor, a controller, an acquisition device and the detection device. The method comprises the following steps: 1, after a to-be-detected product triggers a first photoelectric sensor, the first photoelectric sensor sends a detection signal to a controller connected with the first photoelectric sensor; 2, the controller receives the detection signal, records the detection time t0 and issues an acquisition instruction to the acquisition device; 3, the acquisition device acquires to-be-detected data of the to-be-detected product and transmits the to-be-detected data to the detection device; 4, the detection device receives the to-be-detected data and obtains the receiving time t1 of the to-be-detected data, when the time difference between t0 and t1 is smaller than a threshold value, the trigger is valid, the detection device detects the to-be-detected product according to the to-be-detected data, otherwise, the trigger is invalid, and the detection device ignores the to-be-detected data. By adopting the mode, the problem of false elimination caused by false triggering can be effectively avoided.
Owner:WULIANGYE +1

Cylinder clamping device and mounting and using method thereof

PendingCN112518604AImprove stabilityImprove operation or maintenance efficiencyVicesPhysicsEngineering
The invention discloses a cylinder clamping device. The device comprises a top plate, a bottom plate and several connecting rods arranged between the top plate and the bottom plate. The top plate is provided with external threads for a threaded rotating rod to pass therethrough, the bottom end of the threaded rotating rod is provided with an upper jaw clamp, and the upper jaw clamp is arranged corresponding to a lower jaw clamp fixed to the bottom plate. Grooves are formed in the front face of the upper jaw clamp and the front face of the lower jaw clamp to form corresponding first clamping openings, grooves are also formed in the side faces of the upper jaw clamp and the lower jaw clamp to form corresponding second clamping openings, lifting of the upper jaw clamp is achieved through rotation of the threaded rotating rod, and therefore clamping and loosening of a workpiece are achieved. The invention further discloses a mounting and using method of the cylinder clamping device. By means of the cylinder clamping device, the problem that a traditional cast iron vise is difficult to clamp a cylinder which is prone to cracking under stress is solved, the stability of clamping the cylinder is greatly improved, and the operation or maintenance efficiency of a cylindrical workpiece is improved.
Owner:GUANGDONG HONGTU TECHNOLOGY (HOLDINGS) CO LTD

Hydro-cylinder ear ring capable of achieving self-correction and buffer of mounting angle

The invention discloses a hydro-cylinder ear ring capable of achieving self-correction and buffer of a mounting angle. The ear ring comprises a seat body, wherein the seat body is provided with an ear hole, one end of the seat body is provided with a radial spherical plain bearing or a slide bushing, and the other end of the seat body is provided with a regulating device; one side of the radial spherical plain bearing is provided with a clamp spring, and the other side of the radial spherical plain bearing is provided with steps; one side of the regulating device is provided with a through hole, and the other side of the regulating device is provided with a screw thread hole; and the through hole and the screw thread hole are respectively provided with a first locking bolt and a second locking bolt, and a regulating groove is arranged between the through hole and the screw thread hole. According to the invention, the height of the regulating groove is compressed through the first locking bolt and the second locking bolt, thus the combination degree of the screw thread and a mounting rod is controlled, the space and expense of screw thread compactness are saved, and the ear ring has the functions of buffer and self-correction for the mounting angle; and the hydro-cylinder has a good seal property, and the damage of a seal member in advance or the deformation of a piston rod caused by the deflection of the transmission force of the piston rod for the hydro-cylinder can not happen, thus the oil leakage phenomenon is avoided.
Owner:ZHEJIANG JINGJIU BEARINGS

Self-deviation-rectifying system for small-and-medium-diameter deep hole processing based on hydraulic pressure

The invention belongs to the field of small-and-medium-diameter deep hole processing, and particularly relates to a self-deviation-rectifying system for small-and-medium-diameter deep hole processingbased on the hydraulic pressure. The self-deviation-rectifying system comprises an inner rotation body, an outer rotation body and a driving mechanism; the inner rotation body is arranged on the periphery of a drill rod in a sleeving mode and is fixed relative to the drill rod; the position between the inner rotation body and the outer rotation body is filled with cutting liquid, so that a flow channel is formed between the inner rotation body and the outer rotation body, the flow channel comprises a plurality of wedge-shaped flow channels which are evenly distributed in the circumferential direction, and when the driving mechanism drives the inner rotation body to rotate, the cutting fluid enters the small ends from the large ends of the wedge-shaped flow channels; and a pressure flow anda shear flow are superposed to generate oil film pressure to realize self-centering and self-deviation-rectifying of the drill rod. A wedge-shaped flowing space is formed between a wedge-shaped solidbody and an outer sleeve, and in a normal state, oil film pressure of the wedge-shaped space provides circumferentially-symmetrical self-centering force; and when the drill rod deflects, the wedge-shaped space generates the oil film pressure, namely self-deviation-rectifying force, the drill rod can be 'pushed back' to the correct axis through the self-deviation-rectifying force, and self-correcting of axis deflection is achieved.
Owner:NANJING UNIV OF SCI & TECH

A dual-mode phase-locked loop circuit for anti-irradiation

The invention discloses an anti-radiation double-mode phase-locked loop circuit comprising a voltage controlled oscillator and a charge pump, wherein the anti-radiation double-mode phase-locked loop circuit further comprises two frequency division phase discrimination modules, which are separately connected with an output end of the voltage controlled oscillator, each frequency division phase discrimination module comprises a frequency divider unit and a phase frequency detector, which are connected in sequence, the frequency divider unit accesses an output signal of the voltage controlled oscillator, and a group of control signals is output to the phase frequency detector after the signal is subjected to the frequency division; a logic circuit module, used for separately receiving two groups of control signals output by the two frequency division phase discrimination modules to finally output multiple paths of control signals; and a charge pump control module, connected with the charge pump and comprising a plurality of control switches, wherein the control switches respectively receive the control signals output by the logic circuit module so as to control the on-off of the charge pump. The anti-radiation double-mode phase-locked loop circuit disclosed by the invention can automatically correct error signals, has an anti-radiation function, and has the advantages of simple structure, small power consumption, being able to eliminate the influence of irradiation effect to the circuit.
Owner:NAT UNIV OF DEFENSE TECH

Workpiece conveying system of white automobile body welding production line and control method thereof

The invention discloses a workpiece conveying system of a white automobile body welding production line. The workpiece conveying system comprises a base frame, guide rails, conveying units, a slidingtable, an alarm device and a control system, wherein the base frame is fixed on the ground, the alarm device and the guide rails in the Y direction are fixedly arranged on the base frame, a displacement sensor I is arranged on the guide rails, the guide rails are located above ground equipment of the welding production line; the guide rails are arranged at the upper end of the base frame in the conveying direction of workpieces in the production line, the upper end of the conveying unit cooperates with the guide rails, the lower end of the conveying unit is suspended, and the sliding table islocated below the conveying unit; and the workpiece to be conveyed is placed on the sliding table, and the control system controls the conveying unit and the sliding table to act. The invention further discloses a control method of the workpiece conveying system of the white automobile body welding production line. The workpiece conveying system can be erected above the production line to achievelong-distance conveying of the workpieces, and the occupied area of the production field is small, the control system controls the action of each action piece, the control efficiency is high, and thereliability is high.
Owner:XIHUA UNIV

Shopping bag discharging machine and bag discharging method

The invention discloses a shopping bag discharging machine and a bag discharging method. The shopping bag discharging machine is used for automatically discharging shopping bags and comprises a pressing roller assembly, a bag clamping assembly, a pushing device assembly and a bottom plate, the pressing roller assembly, the pushing device assembly and the bag clamping assembly are arranged on the bottom plate, the pressing roller assembly comprises a movable pressing roller and a fixed pressing roller, and the bag clamping assembly comprises bag clamping pieces and bag clamping side plates. The bag clamping pieces and the movable pressing roller are arranged on the pushing device assembly, the movable pressing roller tightly presses the fixed pressing roller through stretching of the pushing device assembly, the fixed pressing roller rolls to send out the shopping bag, and when the pushing device assembly contracts, the bag clamping pieces clamp the shopping bag and tightly presses the shopping bag on the bag clamping side plates so that a customer tears down the shopping bag conveniently. According to the bag discharging machine, through linkage of the movable pressing roller and the bag clamping pieces, the pressing roller assembly and the bag clamping assembly clamp and loosen the shopping bag respectively, the shopping bag is enabled to be in a rolling bag discharging state and a clamping bag tearing state, the structure is simple and reliable, meanwhile, the shopping bag can be automatically rectified, and it is guaranteed that a bag rolling fault does not occur in the next bag discharging process.
Owner:广州小惠科技有限公司

Parallel flow air conditioner and defrosting control method thereof

The invention relates to a concurrent flow air conditioner and a defrosting control method thereof. The air conditioner comprises an indoor copper tube finned heat exchanger, an outdoor concurrent flow heat exchanger, and a throttling capillary tube and a bypass circuit connected between the concurrent flow heat exchanger and the copper tube finned heat exchanger. The method comprises the following steps: 1) using a temperature sensor to detect the temperature Tx on the temperature concurrent flow heat exchanger; 2) judging whether Tx is smaller than the preset temperature value T1; not switching on the bypass circuit when Tx is larger than T1, and turning on the bypass circuit partly or completely when Tx is smaller than T1; and 3) cycling the step 2 after a period of time. The concurrent flow air conditioner and the defrosting control method thereof have the advantages that the air conditioner can defrost uninterruptedly, thereby improving the heating comfort; the bypass circuit canbe turned on partly or completely according to the defrosting requirements, thereby realizing bypass defrosting without interrupting the heating process; relevant parameters are characterized by selfadaptation and self modification, and the air conditioner has simple control and obvious technical effects.
Owner:TCL CORPORATION
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