99results about How to "Cheap finished product" patented technology

The invention discloses an intelligent medical nursing system, and belongs to the technical field of embedded IoT application. The system comprises a handheld medical terminal, an information collection module and a database management system. The handheld medical terminal serves as a main controller, plays a key role, obtains basic information and vital sign information of a patient from the information collection module wirelessly, and exchanges related information with the database management system in the WLAN wireless communication manner. Thus, information communication among doctor, nurse and patient are all in the wireless manner, especially, the basic information and vital sign information of the patient is automatically collected and stored in the wireless manner, and the handheld medical terminal is a good assistant for the nurse and doctor.

The invention discloses an automatic tennis ball picking device and a control method of the automatic tennis ball picking device. The automatic tennis ball picking device comprises a cart body, a ball picking mechanism, a ball storage mechanism, an infrared obstacle avoiding system and a control system, wherein the ball picking mechanism is arranged at the front half portion of the cart body, the ball storage mechanism is arranged at the back of the ball picking mechanism, the control mechanism is arranged on the ball storage mechanism, the infrared obstacle avoiding system is arranged at the front end of the cart body, and the ball picking mechanism is provided with a part which can move in the vertical direction and the horizontal direction relative to the cart body. The automatic tennis ball picking device adopts the ball picking device which is driven by two stepping motors and carries out transmission through a lead screw, an infrared sensor is installed on the cart body provided with two auxiliary universal wheels, a control module adopts a single-chip microcomputer, the infrared sensor detects obstacles or tennis balls, and a driving module is triggered through the single-chip microcomputer to drive the wheels to avoid the obstacles or drive the stepping motors to carry out ball picking. The automatic tennis ball picking device and the control method of the automatic tennis ball picking device have the advantages that the structure is simple, finished products are cheap, and work is efficient.

The invention discloses a proxy access method. The proxy gateway provided by the invention only has the proxy service; the identity authentication service is returned to an authentication server of the client; after judging that the access request does not contain the authentication information issued by the authentication server after passing the authentication, the access request is sent to theauthentication server; and the proxy gateway redirects the browser to the authentication server so as to complete identity authentication between the user and the authentication server, and finally judges that the access request meets the requirement of executing the proxy access operation through gradual validity verification. According to the method, decoupling of the proxy service and the identity authentication service is realized, an existing identity authentication mechanism of a client is fully utilized, the development difficulty and the later operation and maintenance cost of the proxy gateway are reduced, the finished product of the proxy gateway is reduced, and the product competitiveness and the client experience are improved. The invention also discloses a proxy access deviceapplied to the proxy gateway, the proxy gateway and a readable storage medium, which have the above beneficial effects.

The invention discloses an external wall heat-insulation material for constructional engineering. The external wall heat-insulation material is prepared from the following raw materials in parts by weight: 15 to 20 parts of water-quenched slag, 20 to 30 parts of portland cement, 10 to 15 parts of hollow spherical zirconium oxide, 5 to 10 parts of silicon micro-powder, 10 to 20 parts of glass wool,10 to 20 parts of ceramic fiber cotton, 5 to 10 parts of hollow ceramic microspheres, 3 to 7 parts of expansive soil, 5 to 10 parts of attapulgite, 5 to 10 parts of a functional auxiliary agent basedon PPS-biphenylvinylsiloxy-heptacyclopentyl substituted derivative, 1 to 3 parts of a foaming agent, 1 to 2 parts of polyurethane and 25 to 35 parts of water. The invention further discloses a preparation method of the external wall heat-insulation material for the constructional engineering. The external wall heat-insulation material for the constructional engineering, disclosed by the inventionhas excellent comprehensive performance, remarkable heat-insulation effect and strong flame-retarding performance, heat insulation and coagulation performance.

The invention discloses a copper foil point welding machine, which comprises a frame, a line winding mechanism, a line feeding mechanism, a copper foil mounting mechanism, a welding mechanism, an adhesive tape coating mechanism, a copper foil (adhesive tape) feeding mechanism, a copper foil cutting mechanism and an electric cabinet. Automatic machines are adopted to operate copper foil, and welding and cutting work are automatically operated only needing to set corresponding parameters in use, thereby saving labor and time. The welding adopts the point welding way without consuming metal tin, thereby saving finished products, and avoiding environment pollution.

The present invention discloses a square seasoned duck steak and a manufacture method thereof. The square seasoned duck steak is prepared from the following raw materials: duck meat, edible salt, white granulated sugar, monosodium glutamate, super I+G, garlic powder, lemon essence, beef extract, carrageenan, shallot oil, ginger powder, rosemary, black pepper powder, glucose, soy sauce, salad oil,corn modified starch, ice water, sodium bicarbonate, sodium carbonate, sodium citrate, fructooligosaccharides, polydextrose, Chinese chestnuts, marinating materials, phosphate starch, sodium starch octenyl succinate, xanthan gum, maltodextrin, glucono-delta-lactone, trehalose and sodium alginate. Beneficial effects are as follows: non-medicine residual duck breast meat is used, and the square seasoned duck steak is rich in protein content, has effects of supplementing nutrition, and is healthy and delicious food, and in line with concepts of modern healthy life. The square seasoned duck steakis prepared by processes of rolling and still-putting, the technology is simple, and the prepared square seasoned duck steak is flexible in mouthfeel inside and strong in meat appearance.

The invention relates to a multi-wavelength diffusion optical tomography system. The system comprises an optical acquisition module (110), which is used for generating an excitation light source and detecting tomography acquisition data according to the excitation light source; a switch module (120) electrically connected to the optical acquisition module (110) for controlling on / off of the excitation light source; a digital-to-analog conversion module (130) electrically connected to the optical acquisition module (110), configured to receive acquisition data of the optical acquisition module(110) and convert the data into digital signal data; a processor (140) electrically connected to the switch module (120) and the digital-to-analog conversion module (130) for controlling on / off of each switch in the switch module (120). The imaging system provided by the invention forms an optical acquisition module through a plurality of light emitting diodes and a plurality of detectors, improves the signal detection efficiency, saves the development cost of the imaging system, reduces the structural complexity, and further reduces the cost of the system.

The invention discloses a method for preparing multiple products including hemicellulose, carboxylated cellulose nanocrystals, fibrils and citrate multicomponent products from fibers by using citric acid. The method comprises the following steps: with fibers as a base material, preparing hemicellulose through citric acid hydrolysis and alcohol precipitation, preparing citrate through crystallization, preparing cellulose nanocrystals through ultrasonic treatment and centrifugation, and preparing cellulose nanofibrils from solid fibers through homogenization. The method is friendly to environment, free of toxicity, low in risk, high in fiber component utilization rate, diversified in high-value products and high in yield. The prepared cellulose nanocrystals and cellulose nanofibrils have dispersion stability, excellent specific surface area and high carboxyl content, and lay a foundation for nanocellulose modification. Finally, prepared nanocellulose has no residual toxic and harmful substances, and has wide application prospects in the aspect of functional materials taking cellulose as a substrate, especially in the aspects related to health, such as biomedical materials, food, health care products, skin care cosmetics and the like.

The invention discloses a manufacturing process for a novel functional fabric. The manufacturing process mainly comprises the following steps: 1) water spraying of a dyed fabric for setting; 2) calendering before sizing; and 3) one-knife PU resin functional coating treatment: performing one-knife PU resin functional coating treatment on a calendered surface, wherein a functional coating comprises,by mass, 60-70 parts of two-component polyurethane resin, 25-30 parts of one-component polyurethane resin, 5-10 parts of AC glue, 1-3 parts of a silicon-series dry agent, 1-2 parts of a bridging agent and a solvent X, and the usage amount of the solvent X is added with the viscosity of a rubber compound of 15000 CPS as the criterion. According to the invention, a one-knife coating process is adopted, so the novel functional fabric has the functions of low water pressure, high moisture permeability and UV resistance, and further has the advantages of light weight, thinness, easy storage, comfortable wearing, reduced environmental pollution, etc.

The invention discloses a multi-column-shaped inserting type multipurpose hanging piece, and relates to plate-shaped materials (marble, granite, artificial stones, porcelain plates, vitrified tiles, ceramic plates and glass) of building wall bodies and installation hanging pieces of indoor handiwork hanging pieces (mirror frames and photo frames). The multi-column-shaped inserting type multipurpose hanging piece is structurally composed of wall body hanging pieces and brick body hanging pieces. The brick body hanging pieces are installed on four corner portions of the inner side of a to-be-hanged brick body. The wall body hanging pieces are fixedly arranged on a wall body or a joist. The positions of the wall body hanging pieces correspond to the positions of the brick body hanging pieces on the to-be-hanged brick body. The brick body hanging pieces are inserted into the wall body hanging pieces, and the brick body is hanged on a wall. The multi-column-shaped inserting type multipurpose hanging piece has the advantages of being novel in structure, simple and convenient to process, low in cost, convenient to install, good in stability, easy to adjust, not prone to dropping and the like, thereby being a novel multi-column-shaped inserting type multipurpose hanging piece which integrates economy and practicability.

The invention discloses a method for preparing carboxylated nanocellulose by hydrolyzing citric acid under a high-pressure condition. According to the method, a bleached fiber pulp board serves as a base material, citric acid serves as hydrolysate, acid hydrolysis is conducted under high pressure, then cellulose nanocrystals are prepared through centrifugation, and cellulose nanofibrils are prepared from remaining solid fibers through a high-pressure homogenizer. The method is green, non-toxic, short in consumed time and high in yield, and the used citric acid is easy to recycle so that the preparation cost of the nanocellulose is reduced. Besides, the prepared carboxylated cellulose nanocrystals and cellulose nanofibrils have relatively high dispersion stability, excellent specific surface area and relatively high carboxyl content so that more chemical ways are provided for further modification of the nanocellulose. Finally, the prepared nanocellulose has no toxic and harmful substance residues so that the nanocellulose has a wide application prospect in the aspects of food emulsifiers, health care products, skin care products, medical materials and the like.

A thermocouple single support device suitable for a refrigeration equipment performance test is disclosed. A pedestal is a cross stainless steel seat. A bottom portion of the pedestal is welded with a foot a, a foot b, a foot c and a foot d respectively. The foot a, the foot b, the foot c and the foot d are circular support feet. A sleeve is welded along a vertical direction of an intermediate portion of the pedestal. The sleeve is a hollow structure. A top of the sleeve is provided with an adjusting nut a. Two horizontal extension ends of a T-shaped support are provided with a transverse adjusting slide block a and a transverse adjusting slide block b respectively. The transverse adjusting slide blocks are provided with an adjusting nut b and an adjusting nut c respectively. Bottoms of the transverse adjusting slide block a and the transverse adjusting slide block b are connected to a fixing clamp a and a fixing clamp b respectively. The fixing clamp a and the fixing clamp b clamp a thermocouple. By using the above structure, reliable fixing of a copper cylinder thermocouple position is realized; test precision is increased; a finished product of the device is low, installation is simple and time for arranging the thermocouple can be saved.

The invention relates to a simple anti-falling clothes rack for suspending clothes, belonging to the field of daily necessities. A cylinder nut capable of freely sliding is mounted at the upper part of the hook of a clothes rack; similarly, a bolt matching with the nut is mounted at the lower part of the hook; and the nut and the bolt are rotated to be locked so that the hook is in a sealing state. When the clothes rack is suspended on a rope or a metallic line, the nut of the clothes rack slides upwards so as to expose opening aiming line and metallic line, so the clothes rack is suspended on the rope and the metallic line. The suspended hook and the nut are fixed so that the hook is in a sealing state. The clothes and the clothes rack cannot fall easily. The simple anti-falling clothes rack provided in the invention has simple structure and strong practicability and is convenient to use.

The invention discloses an anti-bacterial bamboo pulp-containing dispersable and degradable non-woven fabric for dry and wet tissues. The non-woven fabric is a single-layer woven fabric which is formed by mixing 85 to 50 weight percent of natural colour antibacterial bamboo pulp and 15 to 50 weight percent of ultra-short fibres, and performing web forming and spunlacing compounding in sequence, or comprises the non-woven fabric with two or more than two layers which is formed by performing spunlacing compounding on a natural colour antibacterial bamboo pulp layer which is formed by the natural colour antibacterial bamboo pulp and an ultra-short fibre layer which is formed by ultra-short fibre pulp. The non-woven fabric has a natural anti-bacterial property, has a soft hand feel in a dry state, and has good skin friendliness, does not lose hair easily, has a plurality of structures, namely, a single-layer structure, a two-layer structures or a three-layer structure, and has excellent dispersibility.

The present invention relates to a PVC sealant, wherein the raw materials comprise, by weight, 400-800 parts of a polyvinyl chloride paste resin, 8-20 parts of a foaming agent, 400-800 parts of a plasticizer, 8-20 parts of a stabilizer, and 8-20 parts of titanium dioxide powder. The sealant preparation method comprises: carrying out mixing stirring on the polyvinyl chloride paste resin, the foaming agent and the plasticizer for 8-30 min, adding the stabilizer, stirring for 8-30 min, adding titanium dioxide powder, and stirring for 8-30 min so as to obtain the PVC sealant. According to the present invention, the sealant does not contain bisphenolA, epoxy group and other substances, has characteristics of good foaming effect, low price and simple preparation production, completely meets the food glue requirements, and meets the development trend of the future food sealant.

The invention discloses a five-axis linkage plate sprayer. The sprayer comprises a spraying mechanism, a Y-axis guide rail, a portal frame, a Y-axis driving source, an X-axis guide rail, an X-axis sliding block, an X-axis driving source, a Z-axis guide rail, a Z-axis sliding block, a Z-axis driving source, a rotating motor and a tooth clutch, wherein the tooth clutch comprises an inner driven plate, an outer driven plate, and a pressure plate; the pressure plate is connected with the rotating output end of the rotating motor; a first bevel gear is mounted on the inner driven plate; a second bevel gear is meshed with the first bevel gear; the second bevel gear is connected with a first transmission belt pulley through a transmission shaft; the first transmission belt pulley is connected with a second transmission belt pulley on the spraying mechanism through an X-axis rotating synchronous belt; the second bevel gear is connected with the outer driven plate through a rotating frame; the pressure plate is meshed with the inner driven plate or the outer driven plate and then drives the inner driven plate or the outer driven plate to rotate. The sprayer realizes the fact that the spraying angle of the spraying mechanism is adjusted after the spraying mechanism rotates alternately on a Z-axis and an X-axis through one motor.

The invention discloses a concentration type health-preservation ginger beverage, and belongs to the technical field of beverages. Fresh ginger and brown sugar are used as raw materials, an appropriate quantity of coix seeds, an appropriate amount of radix angelicae sinensis and an appropriate amount of high fructose corn syrup are added for mixing, and concentration type brown sugar ginger tea is made through a decoction technology; and through a low-temperature concentration technology and a ginger essential oil collecting device, and under the premise that good mouth feel is guaranteed, the nutrient value of the concentration type brown sugar ginger tea is furthest reserved.

The invention discloses a method for planting dendrobium officinale by imitating wild conditions. The method comprises the following steps: a, site selection; b, selection of an epiphytic tree; c, seedling hardening; d, planting of an epiphytic tree seedling; e, cultivation management; and f, harvesting. The method provided by the invention has the advantages of relatively better quality and relatively lower finished product.

The invention provides a polyether composition for preparing reticulated polyurethane foam and application thereof, and relates to the technical field of preparation of a high molecular polymer material. The polyether composition is prepared from the following components in parts by weight: 60 to 100 parts of polyether polyol A, 10 to 30 parts of polyether polyol B, 1 to 8 parts of polyether polyol C, 0 to 15 parts of polymer polyol D, 1 to 6 parts of foam stabilizer, 0.01 to 0.8 part of amine catalyst, and 0.01 to 0.6 part of gel type catalyst. The polyether composition provided by the invention is easy to prepare, has good storage property, and can be used to prepare reticulated polyurethane foam by a one-step method, the foam opening ratio is more than 98%, and the number of 25mm cellsis less than 15. Compared with a two-step method, the one-step method has the advantages of low energy consumption, safety and environmental friendliness.

The invention relates to a punching device for manufacturing paper products. The punching device comprises a base, a driving chamber, a bracket, a punching pin, a rack, a transmission shaft, a slide rail, an electric motor, a slide block, a connecting spring, a connecting column, a pressurizing spring, a protective jacket and an incomplete gear, wherein the bracket is arranged at the top end of the base; the slide block is connected to the front end surface of the slide rail in a sliding manner; the rack is fixedly arranged at the front end of the slide block; the connecting spring is tightlyconnected with the top end surface of the slide block; the transmission shaft is fixedly connected with the output end of the electric motor; the connecting column is fixedly arranged at the bottom end of the rack, penetrates through the driving chamber, and extends to the lower side of the driving chamber; the bottom end of the connecting column is tightly connected with the punching pin by meansof the pressuring spring; the protective jacket is fixedly arranged at the lower end of the connecting column, and is arranged on the outer side of the pressurizing spring in a sleeving manner; and the incomplete gear is mounted on the transmission shaft. Through the adoption of the design, the punching pin is driven to move up and down by using a gear and rack transmission principle so as to punch the paper products, and the punching device is excellent in structure and low in rate of finished products.

The invention relates to an automatic shielding wire paying off device which comprises a base and a trapezoid fixing plate arranged on the base. A row of bearing seats are evenly arranged on the base, shaft sleeves are arranged on the tops of the bearing seats, a plurality of rectangular holes formed in the same plane with large belt wheels are formed in the trapezoid fixing plate, sensing wheels are arranged on the wall face of one side of the trapezoid fixing plate, the sensing wheels are connected with fixing wheels on the wall face of the other side of the trapezoid fixing plate through rotating shafts, and a frame groove is formed in the top of the trapezoid fixing plate. According to the automatic shielding wire paying off device, signals are transmitted to an electrical control box through an electric potential switch, and the electrical control box controls the rotating speed of a motor according to the strength of the signals. Thus, the rotating speed of the motor is made to the matched with the speed of a main machine, the stability of products is improved, finished products are saved, and continuous uninterrupted production can be achieved.

The invention relates to the technical field of textiles, in particular to a production method of special powder puff flannelette. Polyester filament yarns serve as raw materials and are woven by a double-rapier loom in a W-shaped consolidation manner, and a fabric is finished to obtain the special powder puff flannelette. The special powder puff flannelette has the advantages of bacteria resistance, high fluff elasticity reset capacity, good abrasion resistance, low cost and like, fluff cannot fall, and the stability of the fluff is better. According to the method, by the aid of the double-rapier loom, polyester filament yarns with denier count of 1-3 serve as raw materials to be woven and finished to obtain the flannelette, the fluff of the surfaces of the flannelette are full and vertical, the surfaces of the flannelette have natural comfort after the flannelette is finished by the method, and loose powder can be uniformly dispersed on the face of a user. A structure of a flannelette cutting knife is designed, the flannelette cutting efficiency of the production method of the special powder puff flannelette is improved, damage of the flannelette cutting knife to knitting wool can be prevented, flannelette cutting effect is better, and the method is particularly applicable to weaving of flannelettes taking the polyester filament yarns as the raw materials.

The invention relates to traditional Chinese medicinal liquor for treating hyperlipemia and a brewing method thereof. The traditional Chinese medicinal liquor for treating the hyperlipemia is brewed from the following raw materials in parts by weight: 180-230g of haw slice, 190-200g of rhizoma alismatis, 190-220g of salvia miltiorrhiza, 170-210g of mushroom, 800-900g of honey, 400-420g of lemon, 40-50g of glossy privet fruit, 35-50g of eclipta alba, 30-40g of prepared rehmannia root, 35-40g of mulberry and 11-13kg of 50-degree white spirit. The traditional Chinese medicinal liquor has less taboos, has the effects of tonifying spleen, invigorating stomach, activating blood, removing lipid and nourishing blood for tranquilization and has no toxic and side effects, a patient suffering from the hyperlipemia can not produce drug resistance, a brewing method is simple, cost is low, and clinical verification shows that effective rate is more than 90% when the traditional Chinese medicinal liquor is used for treating the hyperlipemia.

The invention relates to an automobile tail traffic signal display system. The automobile tail traffic signal display system comprises a radio-frequency signal output module and a signal receiving module, wherein the radio-frequency signal output module outputs traffic light signals and is installed at the position where traffic lights are located, and the signal receiving module is installed on an automobile. The system further comprises a signal selection module, a signal processing module and a control module, wherein the signal selection module is used for recognizing the driving direction of the automobile and determining that radio-frequency signals in which driving direction need to be selected, the signal processing module is used for decoding the signals sent by the signal selection module, and the control module is used for receiving the signals sent by the signal processing module and controlling color changing of the automobile tail traffic lights. The system can be triggered within a determined range near the traffic lights and display corresponding traffic information in real time at the automobile tail. The system is simple and low in cost and does not influence the overall attractiveness and waterproofness of the automobile.

The invention relates to the field of modern electronic technology, in particular to a sanitation disinfection dryer. A disinfection dryer, which is composed of a single-chip microcomputer, an infrared module connected to the single-chip microcomputer, a hand drying module, a disinfection module, and a power supply module; wherein, the disinfection module includes a solenoid valve and a ground water pump; the hand drying module includes a heater, a fan, and a temperature sensor Composition; an alarm module is provided, and the alarm module is directly connected with the single-chip microcomputer. In the present invention, the electromagnetic valve and the drip pump are started by the single-chip microcomputer to carry out disinfection, and after the timing is completed, the heater and the fan are started to dry. The whole process is fully automatic control, avoiding cross-infection, spraying when you extend your hand, and stop when you leave your hand. The sample of the invention has the advantages of low finished product, small volume, high reliability and short hand-drying time, and is suitable for large-scale popularization.

The invention discloses a method for reusing industrial waste carbon materials, belonging to the technical field of nano materials. The method calculates the Cr value of the industrial waste carbon materials: the ratio of sp2 carbon content and sp3 carbon content of the industrial waste carbon materials under the C1s spectrum of XPS; according to different Cr values, graphene carbon dots or graphene are prepared by electrochemical electrolysis of industrial waste carbon materials. The method solves the problems that the current industrial waste carbon material is difficult to treat and will bring pollution to the environment, at that same time, a solution is provided for preparing graphene and its carbon dot with low cost and high efficiency. Using green electrochemical methods, industrialwaste carbon materials, such as polyimide, polyacrylonitrile, asphalt, etc., can obtain a double continuous structure with sp2 and sp3 carbon phases after simple heat treatment, which can significantly improve the preparation efficiency of graphene carbon spots and graphene.

The invention discloses an industrialized production method of Proprioseiopsis asetus (Chant) by an artificial substitute feed. The method is characterized by comprising the following steps: at the temperature of 8-38 DEG C, the Proprioseiopsis asetus (Chant) can normally survive; under the condition of 15-35 DEG C, the normal growth, development and offspring can be performed, and the egg layingamount is much higher than that of the food taking thrips, pollen, red spiders and Acaroid mites; and the service life and the egg laying period are both prolonged. The method has the advantages thatthe feed is easy to obtain, the finished product is low, the operation is simple and convenient, and after one-time proportional inoculation is performed, any raw material is not needed to be added during the feeding process, and the density of the Proprioseiopsis asetus (Chant) can reach 250-600 head / gram. The method provided by the invention can be used for successfully breeding more than several hundred millions of the Proprioseiopsis asetus (Chant), large-scale industrial production can be formed, a large amount of low natural enemies are provided for replacing pesticides and used on various crops, fruits and vegetables to prevent and treat pests and mites.

The invention discloses a preparation method of a flame-retardant toughened plastic material. The preparation method comprises the following steps: (1) carrying out raw material treatment; (2) preparing a flame retardant master batch; (3) preparing a toughening master batch; (4) mixing the materials; (5) carrying out extrusion forming; and (6) carrying out injection molding. The preparation method is simple to operate and easy to implement. The PC resin (polycarbonate) in the formula is firstly utilized to prepare the flame-retardant master batch and toughening master batch, thereby effectively enhancing the compatibility between the PC resin and the other materials and enhancing the flame-retardant effect and toughening effect. The obtained plastic material has the advantages of high strength, favorable toughness and excellent flame retardancy, and does not generate molten drops. The plastic material is in a halogen-free flame-retardant mode, and thus, can satisfy the requirements for environment protection. The plastic material has the characteristics of low cost and excellent comprehensive properties, and thus, has high market competitiveness.

The invention discloses a pass design method of a continuous rolling machine. The method comprises the following steps of inputting the setting parameters of pass; determining the average extension coefficient of the top pass of each machine frame and the extension coefficient of the top pass; according to the extension coefficient of the top pass of each machine frame, determining the wall thickness of the outlet of each machine frame; selecting the size of a core rod, determining the gap of a penetrating rod, and distributing the extension coefficient of the top pass of each machine frame; according to the extension coefficient of the top pass of each machine frame, determining the wall thickness of the top pass of each machine frame; determining the height of the pass of each machine frame, calculating the radius R<1i> of the pass of each machine frame, and obtaining the eccentric distance of each machine frame; calculating the radius of disengaging arc, determining the disengaging angle alpha1 and connecting angle alpha4, and using a CAD (computer-aided design) method to determine the radius R<5> of the connecting arc. The method has the advantages that the time and labor are saved, and the convenience and rapidity are realized when the pass is calculated.

The invention provides an LED playing system which comprises a plurality of storage modules, a control module, a dynamic random storage module and an LED display module. The multiple storage modules are used for storing image files; the control module comprises a decoding unit, a control unit and an output unit, wherein the decoding unit is used for reading the image files from the multiple storage modules and decoding the image files into a plurality of frames of image data according to the format of the image files, and the control unit and the decoding unit are integrated through a system bus and used for receiving the decoded image data through the system bus, intercepting one frame of image data from the image data and outputting the frame of intercepted image data through the output unit; the dynamic random storage module is connected with the control module and used for receiving the image data output by the control module and caching the image data; the LED display module is connected with the output unit. By means of the LED playing system, chips are reasonably selected, the high-end control application requirement is met, and the aims of low cost and high performance are achieved on the basis of the existing product scheme.