79results about How to "Accurate readout" patented technology

The present invention discloses an omnibearing bar code identification device and method. The device comprises n cameras, an image acquisition and processing module, a data transmission module and a power supply management module. The cameras are all connected with the image acquisition and processing module, the image acquisition and processing module is connected with the data transmission module, and the power supply management module is connected with the cameras, the image acquisition and processing module and the data transmission module separately and is used to supply power to the cameras, the image acquisition and processing module and the data transmission module. The method comprises the steps of acquiring the side surface images of different directions shot by the n cameras; pre-processing the images; correcting the images; splicing the images; analyzing the bar codes; and transmitting the bar code information. According to the present invention, with the arrangement of the plurality of cameras, the bar code information pasted in any direction of the product side surfaces can be identified via software, and the omnibearing bar code identification device and the omnibearing bar code identification method have the characteristics of being fast in speed, low in power consumption, high in accuracy and good in versatility.

An electronic ballast provides fault detection and safety features for overcurrent protection and hard switching at a half bridge. A voltage controlled oscillator supplies a switching frequency that is modifiable based on operational feedback parameters. A feedback circuit senses load current and output voltage to determiner fault conditions and to provide control information for adaptively adjusting the frequency of the voltage controlled oscillator. By appropriately controlling the voltage controlled oscillator output, the electronic ballast maintains a zero volt switching with minimum current switching to achieve an efficient and robust electronic ballast control. The entire control is integrated on a single integrated circuit.

The invention discloses a machine head structure of a multifunctional tube-tube full-position automatic TIG welding. The structure is used for butt joint and lap joint of the tube-tube full-position automatic TIG welding, the structure comprises a visual monitoring mechanism, a welding gun angle adjusting mechanism and a wire feeding posture adjusting mechanism, wherein the welding gun angle adjusting mechanism is arranged on the left side of the visual monitoring mechanism and the wire feeding posture adjusting mechanism is arranged on the right side of the visual monitoring mechanism, and the welding gun angle adjusting mechanism and the wire feeding posture adjusting mechanism are correspondingly connected with the visual monitoring mechanism; the visual monitoring mechanism comprises an arc rail plate, a connecting rod, an electric cross sliding block, a camera box and a lens protection cover; and the welding gun angle adjusting mechanism comprises a mounting frame, a rotating block, a pointer, the arc rail plate and a welding gun; the wire feeding posture adjusting mechanism comprises a wire feeding nozzle, a cross rail, the connecting rod and the arc rail plate. According tothe structure, the machine head structure of the multifunctional tube-tube full-position automatic TIG welding is suitable for the butt joint and the lap joint (inserting and connecting) of the tube-tube full-position automatic TIG welding are carried out, and the form of a root is not limited; the visual monitoring mechanism can clearly observes the condition of molten drop transition, so that the welding parameters, the welding gun angle and the wire feeding posture can be correspondingly adjusted; the optimized structure good in stability, the adjustment is simple, the design is simple andconvenient, and the tube-tube full-position automatic welding can be well realized.

The invention discloses a high-precision flow regulating valve with a lock, which comprises a valve body, a valve cover and a valve stem, wherein two ends of the valve body are respectively provided with an inlet and an outlet, the inlet and the outlet can be communicated through a valve cavity in the valve body, the interior of the valve body is provided with a throttle, the valve cover is tightly connected with the valve body, the valve stem tightly penetrates in the valve cover and can move up and down along the valve cover, the lower end of the valve stem is provided with a valve clack which corresponds to the throttle and can open or close the throttle with the up-and-down movement of the valve stem, the bottom of the valve clack is provided with a tapered ring surface which is matched with the throttle and is provided with a larger diameter on the top and a smaller diameter at the bottom, a lock assembly which can lock the position of the valve stem and can be unlocked by the corresponding key is arranged between the top end of the valve stem and the valve cover, and a flow display component which can display the flow of the throttle in real time is arranged on the valve cover. The high-precision flow regulating valve with a lock provided by the invention has a simple structure, is convenient to manufacture, has linearly flow-regulating and locking functions and can realize high-precision flow regulation.

The invention discloses an anti-counterfeiting coding method. The method comprises the following steps of: (1) setting a coding device for generating an anti-counterfeiting graph, and performing coding through the coding device by using the existence state of element points printed by using a special invisible material and position information thereof in an anti-counterfeiting graph array as coding information factors; (2) inputting coding condition data through a computer system connected with the coding device, automatically performing calculation according to the set conditions and the coding rules through a coder to obtain the numerical values of element codes, and automatically generating anti-counterfeiting audio or images according to the numerical values; and (3) outputting the generated anti-counterfeiting audio or images. The invention also provides a decoding device for implementing the method. When special elements are detected, the numerical values of the codes are calculated according to the arrangement of the element points, and the purpose of management is further fulfilled.

The invention discloses a zeroing counter for a volumetric flowmeter. The zeroing counter is characterized by comprising a dual-pointer single-flow metering unit consisting of a minute hand and a hour hand, a total accumulation metering unit formed by a print wheel group, a four-jaw wheel gear connected with the transmission shaft of a flowmeter governor and a zeroing operation mechanism. The invention is the zeroing counter for the volume type flow meter which has convenient, quick and accurate counting without calculation, can directly acquire online continuous metering values and single metering values.

The invention discloses a cloud hard disk data compression backup and recovery method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: segmenting a source cloud hard disk to obtain a plurality of initial data blocks, and determining the initial offset of each initial data block in the source cloud hard disk; compressing non-zero data blocks in the initial data blocks to obtain compressed data blocks, and calculating the data volume of each compressed data block; generating corresponding backup information by using the initial offset and the data volume corresponding to the compressed data block, and determining a preset sequence corresponding to the backup information; writing the compressed data block into the backup volume; and when a recovery request is detected, performing data recovery by using target backup information specified by the recovery request and a corresponding target preset sequence. According to the method, the occupation amount of the storage space can be reduced on the premise of ensuring correct data recovery.

The invention belongs to the technical field of measuring tools, in particular to an instrument for rapidly measuring the angle of a tapered hole at the bottom of a deep groove cavity. The instrumentcomprises a central rod, wherein the top of the central rod is connected with one end of a connecting rod, and the other end of the connecting rod is connected with a protractor; the protractor is arranged on an auxiliary measuring rod; a vertical sliding connecting block is arranged at the lower part of the central rod; a vertical sliding connecting block is connected with the three transverse rods, wherein one transverse rod is connected with the auxiliary measuring rod through a transverse sliding connecting block, and the other two transverse rods are respectively connected with a stop endconnecting rod through transverse sliding connecting blocks; the bottom of the central rod is connected with a stop end cylinder, and the stop end cylinder is connected with the two stop end connecting rods and the auxiliary measuring rod through stop end measuring rods. The instrument is simple in structure and easy to operate, can go deep into the bottom of the deep groove cavity, can accurately and rapidly read the specific numerical value of the angle of a tapered hole, and can provide practical data for later processing condition analysis.

The invention discloses a portable surface runoff simulating and measuring device. The device comprises a measuring cylinder, a water diversion channel, a runoff frame and a sampling bottle, wherein the measuring cylinder is fixed on a bracket; a water outlet and a valve are arranged at the lower end of the measuring cylinder; the water outlet is communicated with the water diversion channel through a water delivery pipe; a water outlet slot hole is laterally formed in the side wall of the water diversion channel; a supporting seat and an access board are arranged below the water diversion channel; the runoff frame comprises a front inserting plate, a rear inserting plate and two side inserting plates which are connected with one another and form a rectangle; the access board is buckled on the inner side of the front inserting plate through an inserting slit; a runoff output connector is arranged in the outer side of the rear inserting plate; the sampling bottle is communicated with the runoff output connector on the rear inserting plate through a runoff output pipe; a volume scale line is arranged on the side wall of the sampling bottle; a vertical angle measuring device is arranged on the outer side wall of each side inserting plate; a horizontal reference device is arranged on the outer side wall of the rear inserting plate. The simulating and measuring device is centimetre-level in dimension, can repeatedly measuring surface runoff sample data in quantity, and improves the accuracy of observation data.

The invention discloses an anti-electromagnetic-interference pincers-shaped ampere meter device which comprises a pincers-shaped ampere meter body and a shielding case. The shielding case is arranged around a magnetic iron core of the pincers-shaped ampere meter body, an insulating holding clamp is arranged on the inner side of the shielding case, the shielding case comprises two case body units, and the two case body units are movably connected at the intersecting portion. Due to the fact that the pincers-shaped ampere meter device comprises the pincers-shaped ampere meter body and the shielding case, and the shielding case is arranged around the magnetic iron core of the pincers-shaped ampere meter body, the phenomenon that a traditional pincers-shaped ampere meter is exposed inside a strong electro-magnetic field is changed, the interference to a pincers-shaped ampere meter magnetic loop from a strong magnetic field of a transformer is effectively avoided, and the traditional pincer-shaped ampere meter can accurately detect and display data, and improves the reliability of the measurement data. Due to the fact that the insulating holding clamp is arranged on the inner side of the shielding case, connecting is reliable, and use is convenient. When the case body units are rotated, an opening can be adjusted. The anti-electromagnetic-interference pincers-shaped ampere meter device is simple in structure, economical, practical, and easy to realize and has good popularization and use value.

A method for correctly machine - reading pattern and word in countermark on partially damaged valuable document includes using two - valued phase patter to present word and pattern then forming a frame of multigrey scale pattern by using optical mapping conversion device to diffuse each pixel element on original two - valued phase pattern to complete surface of countermark, using orientation angle size of two adjacent sets of speckle Young's interference fringe to present pixel element grey scale. The said method can be used to carry out correct machine - read on damaged document with residual area of 75 % original document.

The invention relates to a stainless steel plate net fixed-specification slitting machine. The stainless steel plate net fixed-specification slitting machine comprises a frame body, a driving device,an adjusting device, a slitting device and a conveying device, the driving device is installed in the middle of the upper end in the frame body, the adjusting device is arranged at the lower end of the driving device in a bilateral symmetry mode, and the slitting device is fixed to the lower end of the adjusting device. According to the stainless steel plate net fixed-specification slitting machine, the problems that in the existing slitting process of a stainless steel plate net, a fixed cutter slitting method is adopted for cutting the steel plate net, in other words, a cut-off cutter is fixed above one end of a workbench, and the end face of the workbench is slit through the cut-off cutter, so that the steel plate net is cut off, the two ends of the cut-off steel plate net are seriouslydeformed, consequently the machining quality and efficiency are reduced, the specification of the steel plate net can only be determined through the part, extending out of the end face of the workbench, of the steel plate net, the machining specification of the steel plate net cannot be accurately guaranteed, and part of the slit steel plate net needs to be machined again before specific use canbe solved.

The invention provides an imaging device. The imaging device includes a carrier storage portion for storing carriers generated by photoelectric conversion, having a photoelectric conversion function, a multiplier section including a multiplier electrode applying an electric field for multiplying carriers due to impact ionization by an electric field, one first transfer electrode so provided between the carrier storage portion and the multiplier electrode as to be adjacent to the carrier storage portion and the multiplier electrode. Thereby, the present invention provides an imaging device capable of multiplying carriers and miniaturizing the device.

The invention provides a solid state imaging device capable of accurately reading electric charge accumulated in a photodiode and a manufacturing method thereof. The solid state imaging device provided by an embodiment comprises a semiconductor substrate, a photodiode which is disposed in the semiconductor substrate and is provided with a first conductive type semiconductor layer, a shielding layer which is disposed on the above photodiode and contains a second conductive type semiconductor layer in the upper portion or the whole of the shielding layer; and a transmission transistor which is disposed on the semiconductor substrate and transmits the electric charge accumulated in the photodiode to a floating diffusion layer. The top surface of the shielding layer is higher than that of the semiconductor substrate.

An image sensor includes a photoelectric device generating an electric charge from light; a feedback device generating a reset voltage using a predetermined reference voltage; and a pixel circuit generating a pixel voltage using the reset voltage and the electric charge, setting the reset voltage to the reference voltage using the feedback device a first period, and outputting the pixel voltage and the reset voltage during a second period.

The invention discloses a transparent flexible ruler which includes a shell, a graduation ruler and a bending stop block. The shell is provided with an opening. The graduation ruler is wound in the shell and can be pulled from the opening. The graduation ruler is provided with an end part. The bending stop block is arranged at the end part and capable of being clamped at the opening. The graduation scale is transparent. The transparent flexible ruler uses a transparent material to make the graduation ruler. During scale reading, the scale can coincide accurately with the edge of a measured object and the number can be read accurately so that a condition that when an object, which is narrower in width, is measured, the graduation ruler is incapable of accurate alignment is prevented.