268 results about "Black line" patented technology

A vertical black line removal system (VBLR) is adapted to remove unwanted vertical lines produced on scanned document images by dust or other particles on the imaging apparatus. The VBLR system, placed in a document scanner after the binarization equipment, creates a stored histogram table including the difference values of “1” or “0” for the first and second image data. A vertical black line search processor compares each histogram value in the histogram table with a predetermined threshold value such that when the histogram value is greater than the threshold value the histogram value and the image address indicating the location of defect are stored in memory. An image readout then creates a corrected image by comparing each original image address with the stored defect image addresses so that when there is not a match with defect image addresses the first binary image value is output, and when the addresses are equal the difference value is analyzed for a “1” or “0” to determine when the first or second image data is to be output.

The invention discloses an imitated-marble whole-body ceramic tile comprising a whole-body green tile layer and an overglaze layer distributed on the whole-body green tile layer; the whole-body green tile layer comprises the raw materials in percentage by weight: 22-40% of potassium sand, 15-30% of sodium potassium feldspar, 10-20% of potassium feldspar, 10-22% of black clay, 2-10% of kaoline, 2-6% of bentonite, 1-4% of raw talcum and 2-10% of pigment; and the overglaze layer comprises the raw materials in percentage by weight: 30-60% of sodium potassium feldspar, 15-30% of kaoline, 5-10% of wollastonite, 5-10% of aluminum oxide, 2-8% of talcum, 2-10% of zinc oxide and 10-20% of calcium carbonate. By using the imitated-marble whole-body ceramic tile, the problem that the whole-body ceramic tile is difficult to oxidize in a firing process is solved, the whole-body ceramic tile of which the thickness is larger than 1cm can be prepared, the whole-body ceramic tile is good in oxidization performance, and pinholes, black lines, air bubbles and the like are not easy to produce in an intermediate layer; and meanwhile, due to the regulation of components and proportion of an overglaze, the problem that the texture of the overglaze of the whole-body ceramic tile cannot reach the surface texture of natural marble is solved, and the surface texture of the whole-body ceramic tile is closer to that of the natural marble.

The invention provides a unit pixel structure for liquid crystal displays. A liquid crystal display comprises an array substrate, a color film substrate, and liquid crystal; the array substrate and the color film substrate face each other; the liquid crystal is arranged between the array substrate and the color film substrate; the liquid crystal is in a UV vertical alignment mode; the array substrate comprises scan lines, data lines and pixel electrodes; the scan lines and the data lines intersect crisscross; the pixel electrodes are limited by the scan lines and the data lines intersecting; black lines occur to a pixel electrode area due to UV vertical alignment; the edge of the pixel electrodes is partially provided with a radial slit pattern protruding out. The unit pixel structure has the advantages that the edge black lines expand out of the pixel electrodes, force of the ITO fringe field upon liquid crystal molecules moves out, the dark lines are moved out of an aperture area, a Fine Slit structure enables the black lines to move out to be eliminated, load of resistance and capacitance of an array panel is not increased much, aperture ratio is not lowered, and light transmitting efficiency of UV vertical alignment displays is increased.

The invention provides an unmanned storage intelligent integrated monitoring and scheduling system and a control method thereof. The system comprises a remote monitoring terminal and a main control system; the main control system comprises a Zigbee substation, an information management system and a security and protection system, wherein the security and protection system comprises an unmanned vehicle, an unmanned aerial vehicle and a black line track arranged on the periphery of a storehouse, the black line track comprises two-dimensional codes containing coordinates at intervals, the unmanned vehicle drives along a line, the unmanned vehicle comprises a plurality of anomaly detection modules, the anomaly detection modules detect an abnormal state on a driving path in real time and send acoordinate value to the remote monitoring terminal when anomaly is found, the remote monitoring terminal sends a coordinate command to the unmanned aerial vehicle, and when the unmanned aerial vehicle flies to an abnormal coordinate position, a site state is acquired in real time. The unmanned storage intelligent integrated monitoring and scheduling system and the control method thereof have theadvantages that the highly intelligent, automatic, informationalized and network-based management of the warehouse operation is achieved; the combination of intelligent patrol unmanned aerial vehicleimage acquisition and thermal released infrared detection is adopted to achieve the remote management of the warehouse security and fault information collection with lower cost.

The invention, which relates to the technical field of the solar energy, discloses a wet etching process and equipment, and a solar cell and manufacturing method thereof. Therefore, problems of etching black line occurrence and square resistance increasing according to the existing wet etching process can be solved; and elimination of the phosphorosilicate glass layer and the back junction is realized and an objective of back polishing is achieved, thereby improving the conversion efficiency of the solar cell. The wet etching process comprises the following steps that: first corrosive liquid is used for carrying out corrosion on the lower surface and the side surface of a solar cell so as to remove the phosphorosilicate glass layer at the lower surface and the side surface of the solar cell, wherein the first corrosive liquid is a hydrofluoric acid solution; alkali liquor is used for carrying out corrosion on the lower surface of the solar cell so as to remove the PN junction at the lower surface of the solar cell and realize the polishing effect of the lower surface f the solar cell; and second corrosive liquid containing hydrofluoric acid is used for carrying out corrosion on the solar cell, thereby removing the phosphorosilicate glass layer at the upper surface of the solar cell.

The invention provides an AGV trolley indoor positioning and navigation system and a control method thereof. The system comprises a black line grid module which is an nxn black line grid, wherein thenode of each grid is provided with a two-dimensional code and each two-dimensional code has position information; at least one AGV trolley which comprises a driver used for movement, a black line tracking sensor which is used for identifying the black line grid, a two-dimensional code identification module which is used for reading the two-dimensional code information of the current node and a control module which sets the movement path from the initial position to the target position; and a central monitoring and scheduling system which establishes a two-dimensional code information database,communicates with all the AGV trolleys through a wireless communication module and plans the movement path of the AGV trolleys as a whole. The beneficial effects of the AGV trolley indoor positioningand navigation system and the control method thereof are that the movement path can be flexibly adjusted in real time, real-time accurate positioning can be realized, the positioning and navigation accuracy requires to be centimeter or higher level, and the system is simple and reliable, fast in response speed, high in anti-interference capacity and low in cost.

Disclosed is a device for eliminating after image overlap blurring phenomenon between frames in the simulation of CRT impulse type image display with liquid crystal display (LCD), including first and second input control lines; first and second input data lines; first and second capacitors; a driving voltage output line; a first transistor including a first gate connected to a first input control line, a first source connected to a first input data line, and a first drain connected to a driving voltage output line, a first capacitor and the drain of the second transistor; and a second transistor including a second gate connected to a second input control line, a second source connected to a second input data line, and a second drain connected to a driving voltage output line, the drain of the first transistor and the second capacitor. The first and second capacitors are connected to ground respectively. The driving voltage output line supplies a simulation driving voltage to pixels of an LCD panel for displaying images and including a backlight unit with adjustable and controllable luminance and a backlight input voltage control line. The first and second input control lines are connected to a gate driver. The first and second data lines are connected to a data driver respectively. During the interval of black lines scanning, when the luminance of the backlight unit is reduced to the lowest value through its control voltage, the accumulated liquid crystal optical response in that interval is brought to the lowest value.

The invention relates to a production method of aluminum plates and aluminum strips for cosmetic mirror surface aluminum caps. The manufacturing process comprises the steps of smelting, casting, homogenizing treatment, hot rolling, cold rolling, intermediate annealing and cold rolling of finished products. In the smelting process, a bottom-mounted electromagnetic stirring system is adopted; in the casting process, an automatic speed regulation system is adopted; in the hot rolling system, a hot rough rolling pass automatic distribution system is adopted; and in the intermediate annealing system, a large natural gas furnace is adopted for annealing. Through cooperation of all the procedures, product ingredients can be made uniform, and finished products are uniform in surface roughness, fine, smooth, good in smooth finish, free of surface defects such as stripes, black lines and color difference; the mirror surface effect is good after materials are subjected to anodic oxidation and electroplating, and the application requirements for deep drawing and tensile properties of the aluminum plates and the aluminum strips for the cosmetic mirror surface aluminum caps are met.

An image processing apparatus performs a first edge determination to determine whether each pixel is an edge of a black character or a thin black line based on a pixel signal of a predetermined color in each pixel included in multi-valued image data. The image processing apparatus determines whether to achromatize a pixel signal of each pixel included in the multi-valued image data based on a result of the first edge determination, and achromatizes a pixel determined to be achromatized. The image processing apparatus performs a second edge determination for determining whether each pixel is an edge based on a pixel signal of a color different from the predetermined color in each pixel included in the multi-valued image data. The image processing apparatus corrects the multi-valued image data based on a result of the second edge determination after completing achromatization of the pixel determined to be achromatized.

Systems, devices, apparatus and methods of attracting and capturing flies with toxicant treated darkened cords and printed or painted strips on sidewalls of housings. The darkened cords and strips black to confuse flies into believing they are cracks and crevices. Flies feed off the insecticide treated strips and are killed over time. At least one black line over a blue background can simulate a harborage to attract flying insects. At least one black line over a sticky surface card can be used. Geometrical housing shapes can include triangular, pentagon, cylindrical, rectangular, square, cube and / or other geometrical shapes. Housings can be tied off to be suspended. Second housings can be suspended beneath a main housing by attaching strips to the lower suspended housing. The housings can also work in an unassembled state where planar type sheets can be mounted on a wall.

The invention relates to a novel routing vehicle system based on electroencephalogram control. The invention collects the electroencephalogram signal of a user focusing on doing something, then transmits the electroencephalogram signal to a small toy vehicle through a wireless transmission technology, later processes the electroencephalogram signal by using the single chip of the vehicle, finally extracts the property signal of the electroencephalogram signal and matches the property signal with the corresponding specific speed value to realize the speed control of the vehicle. A transmitter of an infrared photoelectric sensor on the vehicle body transmits the infrared light to a map and reflects the signal to a receiver while the infrared light meets white-matrix black lines or black-matrix white lines, then a signal receiver transmits the signal to the single chip, and the single chip controls the rotation speed of the left motor and the right motor of the vehicle after processing by the single chip so as to turn the vehicle left and right. The invention exercises the concentration of the user via the game process, and improves the focusing attention while user plays the game, so that the user can more easily reach the ideal state while doing other works.

A system and method are provided for displaying a video composed of images each comprising a predetermined number M of lines and, a predetermined number N of pixels in each line. Values of a predetermined number P of reference pixels for each line of a current image of the video are stored in memory, where P is less than N. For each line of the current image, the value of a parameter associated with the line is determined, with the parameter corresponding to the number of the reference pixels of the line that are black according to a first predetermined criterion. A first nonblack line and a last nonblack line of the current image are determined to serve as a basis for an automatic reframing of the images of the video before display. The first nonblack line of the current image is determined by excluding, starting from a first line of the image, the lines of the image which are black according to a second predetermined criterion based on the parameter, and the last nonblack line of the current image is determined by excluding, starting from a last line of the image, the lines of the image which are black according to the second predetermined criterion based on the parameter.

A method for judging defects of a plastic packaging device based on acoustic scanning comprises seven steps: one, carrying out layer-by-layer C scanning on the device; two, judging whether a C scanned image of each layer has a bright region; three, judging whether the C scanned image of each layer has a black line segment; four, focusing a transducer on a lead frame, and carrying out C scanning; five, judging whether the C scanned images have a bright region; six, judging whether the C scanned images have a black coast line; and seven, overturning the device, making the bottom of the device upward, and repeating the step four, the step five and the step six. The acoustic scanning detection of the plastic packaging device is divided into two parts, namely plastic packaging body detection and important interface detection. Not only are test items provided, but also a method for judging voids, cracks and interface delamination defects is provided. The method can improve the efficiency of acoustic scanning detection, and has a certain guiding significance on acoustic scanning detection of the flash memory plastic packaging device.

The invention discloses a polycrystalline silicon acid texturing process, which comprises the following steps of: texturing with acid liquor, removing the acid liquor, removing an oxide layer and metal ions, cleaning and drying. By the process, the weight reduction of a silicon chip is unchangeable, the reflectivity is improved, the black line of the surface is controlled, and the capacity of equipment is improved.

The invention provides a splicing type display screen which comprises multiple mutually spliced OLED display screens (1). Each OLED display screen (1) comprises an elastic substrate (11) and an OLED panel (13) arranged on the elastic substrate (11); each OLED display screen (1) is provided with an effective display area (AA) and a nondisplay area (DD) located on the periphery of the effective display area (AA); at the splicing place of every two adjacent OLED display screens (1), the nondisplay areas (DD) of the two adjacent OLED display screens (1) are bent by facing the backs of the elastic substrates (11), so that the effective display areas (AA) of the two adjacent OLED display screens (1) are in seamless connection, black areas or black lines at the splicing places can be eliminated, image display is smooth, and the viewing effect of the splicing type display screen is improved.

The invention provides a splicing display system capable of removing splicing black lines of back projection units, wherein a splicing slot exists between adjacent two back projection units; each backprojection unit comprises a projector and screen systems which are sequentially arranged according to a light path; the screen system comprises Fresnel Lenses and a back projection screen; the Fresnel Lenses of adjacent two screen systems are mutually spliced; the range of rays projected by the projector slightly exceeds a display image range of the back projection screen; the exceeding rays areprojected on the side surfaces of the screen systems and the mutually spliced side surfaces of the Fresnel Lenses are provided with cutting angels which do not influence the refraction and the transmission of the display image edge of the front surface of the screen in the Fresnel Lenses. The splicing display system leads a small number of rays on the projection edges into the splicing slot and emits the rays to the front surface of the screen from the splicing slot, thereby removing the splicing slot of images on a splicing display screen and realizing the integral display of splicing images.

An image reading apparatus is provided which is capable of preventing abnormal lines from being generated on an image read out from an original document even if there is more or less dirt attached to a reading glass exclusively used for reading ADF original documents. In an image reading apparatus 100 of the present invention, in case of dirt adhering to a reading glass 11, when an original document 13 being sent to a document reading position PW by a transportation part 12 of an automatic document feeder 10 is being read by a scanning carriage 23 through the reading glass 11, abnormal densities appear in pixel data of positions corresponding to the dirt among the readout pixel data. However, a control part 30 of the image reading apparatus 100 nullifies the pixel data of abnormal densities, and compensates for the nullified pixel data based on their surrounding pixel data. As a result, even when dirt adheres to the reading glass, there can be created an excellent image with no missing pixel without appearance of any abnormal black line.

The invention discloses an intelligent logistics cart which comprises a cart body and wheels arranged below the cart body. The cart body is provided with a motor for driving the wheels, a wheel steering engine for changing the wheel direction, a steering engine power supply battery and a central control unit. The central control unit feeds steering signals to the wheel steering engine, the front end of the cart body is provided with an obstacle avoidance module and a tracking module, an infrared detection device on the obstacle avoidance module measures the distance of an obstacle in front andtransmits measuring data to the central control unit, the tracking module detects a navigation black line on a floor and inputs data of the distance between the cart body and the navigation black line into the central control unit, the cart body is further provided with a six-freedom-degree mechanical arm and a mechanical arm power supply voltage stabilizing module, and the side face of the cartbody is provided with a carrier table.

A scan image correction device includes a scanning part to scan an image of a document in a block unit, an electro static discharge (ESD) determination part to determine a presence of an external ESD while the scanning part scans the image, a document feeding adjustment part to feed the document backward by the block unit to allow the scanning part to re-scan the image if the ESD determination part determines that the ESD present, and an image process part to receive the image as an ESD free scan image and to process the received image. Accordingly, the scan image correction device prevents one or more black lines from appearing by an influence of the ESD during scanning so that a high-quality scan image can be provided.

An imaging element includes: a plurality of pixels; first vertical transfer lines; a second vertical transfer line; a reference voltage generator configured to generate a first reference voltage for a column-black reference signal, a second reference voltage for a line-black reference signal and a third reference voltage for phase adjustment; a phase adjusting signal generator configured to output a phase adjusting signal corresponding to the third reference voltage; a first reference signal generator configured to generate a column-black reference signal corresponding to the first reference voltage; a second reference signal generator configured to generate a line-black reference signal corresponding to the second reference voltage; and a timing generator configured to drive the phase adjusting signal generator, the first reference signal generator and the second reference signal generator to transmit the phase adjusting signal, the column-black reference signal and the line-black reference signal, respectively.

The invention discloses a high-end anodic oxidation aluminum strip for the 3C (computer, communication and consumer electronic) industry and a production method of the high-end anodic oxidation aluminum strip. Chemical alloy elements of the aluminum strip comprise Si, Fe, 0.04-0.08% of Cu, Mn, 2.3-2.5% of Mg, Cr, Zn, 0.008-0.012% of Ti and the balance Al, wherein the percent of Si is smaller than or equal to 0.03%, the percent of Fe is smaller than or equal to 0.05%, the percent of Mn is smaller than or equal to 0.01%, the percent of Cr is smaller than or equal to 0.01%, and the percent of Zn is small than or equal to 0.01%. The production method includes: smelting the aluminum alloy elements to obtain aluminum alloy ingots by casting; subjecting the aluminum ingots to end sawing and surface milling; performing soaking and heating treatment; sequentially carrying out cold rough rolling and hot finish rolling; subjecting aluminum alloy coils to intermediate annealing or stabilization treatment, and finally cleaning, dividing and packaging. By the aluminum strip produced according to the production method, quality problems of high internal hydrogen content, texture nonuniformity, surface black lines, streaks and the like in production of aluminum alloy strips for electronic appliances in the prior art can be solved effectively.

In laser engraving apparatus for engraving a gray-scale image on a plastic ID-card, the laser is a modulatable optically pumped semiconductor laser. Focusing optics focus a beam from the laser into a focal spot about 10 micrometers in diameter. The ID-card is mounted on a turntable which is rotated such that the focal spot sweeps over the ID card. The turntable is translated in a direction transverse to the rotation direction and the laser is modulated such that the engraved gray-scale image is formed by a matrix of parallel black lines of various length and spacing.

The invention discloses a method and a device for identifying barcodes, which can improve identification rate and identification speed, can identify the non-integral time barcodes and cannot be influenced by light rays during identification. The method comprises the following steps of: A, extracting barcode pixel information in a way of camera terminal shooting or scanner scanning; B, converting the pixel information into binary numeric strings by using a principle of consistent bar background colors or a principle of consistent barcode black line colors; C, segmenting the binary numeric strings by taking barcode values as units; and D, matching each section of binary numeric strings acquired by segmentation respectively by using a principle of similitude in an image dot matrix, and judging whether the barcodes are successfully identified according to custom matching rules.

The invention provides a six-series high-surface mobile phone aluminum alloy shell. The six-series high-surface mobile phone aluminum alloy shell is obtained by carrying out stamping, machining and oxidization on an aluminum alloy plate, and the aluminum alloy is an aluminum alloy 6061. Starting from the raw material of the aluminum alloy plate of the mobile phone aluminum alloy shell, by combining the strength requirement of the mobile phone aluminum alloy shell and the appearance requirement of the high surface, special selection is carried out on the type of the aluminum alloy, the components of the aluminum alloy are creatively selected and combined and supplemented by specific proportion contents, the specific aluminum alloy 6061 is selected as the aluminum alloy plate, and thereforethe material line defect and the black line defect are eliminated from the basic aluminum alloy plate, the rejection rate caused by the material line defect and the black line defect is greatly reduced, the working procedures are simple and suitable for application and popularization of industrial mass production, and important actual significance and market prospects are achieved.

The invention relates to an LED electronic sign board capable of power-saving per pixel line, comprising: an LED display panel; a panel driver; a switching mode power supply that receives AC power, generates driving power required to operate the LED display panel and the panel driver and supplies power to the LED display panel and the panel driver; a black line extractor that analyses an image signal which will be displayed on the LED display panel and extracts pixel lines which becomes black per LED module; and a main controller that controls the panel driver to display an image on the LED display panel according to the image signal, and that controls a switching signal for the operation of the switching mode power supply to shut off driving power that is supplied to the pixel lines extracted by the black line extractor from the switching mode power supply.

The invention discloses high-strength aluminum alloy for electronic product outer parts and a preparation method thereof. The aluminum alloy is prepared from the following components according to masspercent: 4.5 to 5.5% of Zn, 0.8 to 1.0% of Mg, 0.3 to 0.5% of Cu, 0.05 to 0.15% of Mn, 0.01 to 0.03% of Y, 0.04 to 0.06% of Ti, 0.005 to 0.01% of Sr, less than or equal to 0.1% of Fe, less than or equal to 0.1% of Si and the balance of Al and inevitable other impurities. The preparation method comprises the steps of smelting and preparing an aluminum alloy solution, performing spray refining in afurnace, performing online refinement and modification, performing online degassing and filtration, performing semicontinuous casting, homogenizing cast ingots, heating and extruding, and performingonline quenching and artificial aging. According to the high-strength aluminum alloy and the preparation method, the cleanliness of the aluminum alloy and the uniformity of tissue components are increased, Fe-enriched phases and continuous intercrystalline network MgZn2 phases are refined and modified, and the defects of black lines, black dots and the like of an oxidation film are eliminated, sothat recrystallized fine equiaxed grains are obtained by extruding the aluminum alloy, tissue stripes and piebald of the oxidation film are eliminated, and the quality of the oxidation film is increased. The aluminum alloy has the advantages of high strength, good plasticity and excellent oxidizing and coloring effects and is suitable for manufacturing outer structural parts of various electronicproducts.

A color film substrate for liquid crystal displays is characterized in that the dark line part of the edge of a pixel area is provided with a laminated structure which comprises at least two structure layers, the width of the part, close to a glass substrate, of the laminated structure is larger than the width of the part, far away from the glass structure, of the laminated structure, and each structure layer of the laminated structure and the adjacent layer are arranged in a segmental differential manner. Liquid crystal molecules on the surface of the laminated structure can be controlled to arrange in a slope form along segmental differential lamination, so that the influence of ITO fringe electric field upon the liquid crystal molecules is eliminated and dark lines are eliminated or decreased. Meanwhile, the laminated structure enables the black lines to move out to be eliminated, load of resistance and capacitance of an array panel is not increased much, aperture ratio is not lowered, and light transmitting efficiency of UV vertical alignment displays is increased.

The present invention discloses an array substrate and a manufacturing method thereof, a touch control display panel and a touch control display apparatus. The array substrate comprises: a substrate; a plurality of data lines and a plurality of scanning lines, the plurality of data lines and the plurality of scanning lines being insulated and intersected to define a plurality of pixel units; a pixel electrode arranged in each of the plurality of pixel units; a common electrode arranged in the same layer as the pixel electrode, the common electrode comprising a plurality of common electrode blocks; and a plurality of touch sensing lines arranged between the membranous layer of the common electrode and the data lines, the touch sensing line being electrically connected to a corresponding common electrode block and being insulated from the common electrode blocks except the corresponding common electrode block, and at least one of the touch sensing lines being integrally or partially overlapped with the common electrode blocks. According to the present invention, black lines in the position where the touch sensing lines are arranged can be prevented, thereby improving the quality of displayed images.

The invention discloses a local aluminium surface-back-field solar cell. The local aluminium surface-back-field solar cell includes a crystalline silicon wafer, wherein the back surface of the crystalline silicon wafer is provided with a passivation layer and a back electrode; and the front surface of the crystalline silicon wafer is provided with an emitting electrode, an anti-reflection layer and a front electrode. The local aluminium surface-back-field solar cell is characterized in that a laser open hole or open groove is formed in the passivation layer on the back surface of the crystalline silicon wafer; the laser open hole or open groove is provided with a first layer of local back surface aluminium paste covering the laser open hole or open groove; the first layer of local back surface aluminium paste, the front electrode and the back electrode are formed together through sintering; and a second layer of back surface aluminium paste which processed through high temperature is arranged on the first layer of local back surface aluminium paste. The local aluminium surface-back-field solar cell can greatly reduce the voidage of the local aluminium surface-back-field cell through optimization of aluminium paste printing and the sintering technology so as to solve the problem that black points and black lines appear during the electroluminescent process and improve the photoelectric conversion efficiency of the cell. The invention also discloses a preparation method of the local aluminium surface-back-field solar cell.

The invention discloses a storage conveyer car with automatic tracking and obstacle avoiding functions. A black line is set on the ground of a warehouse while the rest of the ground is brushed with white color. An infrared sensor below the head of a car emits light ray downwards and receives reflection ray, whether the storage good conveyer car deviates from the black line or not is judged according to the difference between the reflection rays from the back line and the white ground, so that the conveyer car is controlled to return to the back line as set and the tracking function is achieved. Locations and distances of the conveyer car from obstacles are measured by a camera and an ultrasonic sensor right above the head of the conveyer car, and then the optimum obstacle avoiding route is calculated; further, by the aid of infrared sensors and photoelectric encoders on the left side and the right side of the conveyer car, the conveyer car bypasses the obstacles to return to the back line, and accordingly, the obstacle avoiding function is achieved. The storage conveyor car is simple and convenient, has high reliability, low cost and high practicability, and can meet the requirement of automatically conveying storage goods.