165results about How to "Solve the bloat problem" patented technology

An embodiment of the invention provides a page rendering method and apparatus, and a page processing method and apparatus. The page rendering method specifically comprises the following steps: obtaining a component configuration protocol corresponding to a target component in a first page, wherein the component configuration protocol comprises structure information and interaction information of the target component; obtaining the structure information and interaction information of the target component from the component configuration protocol; according to the structure information and interaction information of the target component, rendering the target component to obtain a corresponding first rendering result; and displaying a page area corresponding to the target component accordingto the first rendering result. The embodiment of the present application can shorten the uplink time of new page configuration requirements, and moreover, the expansion of a component library caused by new components can be effectively avoided.

The invention provides a porous aluminum-foil cathode. The porous aluminum-foil cathode comprises a porous aluminum foil; porous holes which are uniformly arranged are formed in the porous aluminum foil; triangular areas formed by connecting the centers of every three adjacent holes are taken as minimum units; the area ratio of the holes in each minimum unit is 10-79%; and the distance between the porous aluminum foil and the outermost porous hole is 0.1-10mm. The porous aluminum-foil cathode can be applied in a novel lithium-ion battery system which takes the aluminum foil as a current collector and a cathode active material at the same time, and has the effects of effectively solving the battery expansion problem, effectively reducing the problem that the solid electrolyte membranes are damaged to decompose in the battery charge-discharge cycle process of electrolyte, and effectively reducing the short-circuit problem caused by puncturing the membranes by burs of the aluminum foil, so as to improve the charge-discharge efficiency, cycling stability and safety of the batteries. The invention furthermore provides a preparation method of the porous aluminum-foil cathode and a lithium secondary battery.

The invention discloses a sewage treatment process and a special-purpose one-piece sewage treatment plant. The process comprises the following steps: 1) arrangement of a water inlet system: sewage input from an inlet pipe and pretreated by thick and fine gratings and a vortex-type grit chamber is sent into a biological reaction system; 2) arrangement of the biological reaction system: the biological reaction system is divided into an anoxic area, an anaerobic area, an aerobic area and a sedimentation area, and activated sludge in each area utilizes katabolism of microbes to converse organic matters into inorganic matters to realize nitrogen and phosphorus removal; 3) arrangement of the sedimentation basin: sludge and water in the treated sewage can be separated, so that the water outlet is clarified; and 4) arrangement of a disinfection tank: the treated water from the step 3) is disinfected to kill pathogenic organisms and then discharged through an outlet pipe. The invention also discloses a one-piece sewage treatment plant. The invention has the advantages of small land occupation, small investment, compact mechanism, low loss of a water head, low investment for the engineering project, optimized, stable and mature technology, good nitrogen and phosphorus removal effect and good organic pollutant removal effect.

The invention discloses a treatment process for bearing production wastewater. The treatment process comprises the following steps: firstly, enabling bearing production wastewater to enter an oil-separation adjusting tank; separating floating oil in the wastewater and agitating uniformly; then lifting the wastewater into a cavitation air floatation system to remove suspension matters and petroleum in the wastewater; conveying the wastewater treated by the cavitation air floatation system into an iron-carbon micro-electrolysis reactor and carrying out a Fenton reagent and iron-carbon micro-electrolysis combined oxidation reaction to reduce chemical oxygen demand and improve the ratio value of biochemical oxygen demand / chemical oxygen demand of the wastewater; conveying the wastewater reacted in the iron-carbon micro-electrolysis reactor into a coagulation precipitation tank, adjusting the pH (Potential of Hydrogen) and carrying out a coagulation and flocculation reaction; enabling reacted liquid supernatant to flow into a middle water pond to sequentially enter a UASB (Up-flow Anaerobic Sludge Bed / Blanket) anaerobic reaction tank, a CASS (Cyclic Activated Sludge System) reaction tank and a water discharging tank and filtering by a multi-medium filter; discharging after the water reaches standards. The treatment process is simple in management and good in wastewater treatment effect; a sludge expansion problem which usually and easily occurs in a traditional active sludge method is overcome; the water can be discharged after the water quality reaches the standards and the treatment process is good for protecting the ecological environment.

The invention discloses a dynamic data race detection method based on static shared variable recognition. The method comprises the steps: S1, recognizing a shared variable of a program to be detected; S2, performing data race detection instrumenting and sampling on a basic block of the shared variable contained in the program to be detected, to obtain instrumented and sampled binary code of the program to be detected, wherein the basic block references to a continuous program statement sequence, a control flow starts entering from the continuous program sentence sequence and leaves from the end without interruption or branch; and S3, running the binary code to dynamically detect data race in spot detection. The method can be used for instrumenting and sampling the basic block containing the shared variable, thus avoiding the problem of code bloat, and greatly reducing the system overhead.

The invention discloses a process of extracting arsenic from arsenic sulfide waste residue by adopting the whole wet method. The process comprises the following steps: arsenic sulfide waste residue is subjected to oxygen pressure leaching and solid-liquid separation to obtain sulfur slag and an oxygen pressure leach solution containing pentavalent arsenic and H2SO4; arsenic sulfide waste residue is taken as a reducing agent to obtain pentavalent arsenic by reduction, and solid-liquid separation is carried out, so as to obtain a solution containing trivalent arsenic and a slag phase; the solution containing trivalent arsenic is subjected to cooling crystallization and drying to obtain a opaque glass product, and the slag phase is returned to be subjected to oxygen pressure leaching. The process has the advantages of being short in process flow, economic and practical, good in operating environment and capable of realizing closed circulation of the solution; arsenic and sulfur are recovered in the forms of a arsenic trioxide product and sulfur, the problem that the conventional SO2 reduction causes acid swelling is solved, and the industrial popularization and application are facilitated.

A novel sewage treatment process utilizing ferrate oxidization to reduce sludge quantity comprises the steps that a emical treatment unit effectively removes and converts organic pollutants into inorganic small molecular substance through microorganism in a biochemical treatment system, and the certain sludge concentration in the biochemical treatment unit is maintained; in a sediment unit, sewage produced after the treatment of the biochemical treatment unit enters a secondary sedimentation tank to perform sludge-water separation, a part of subsided sludge is excess sludge, the rest is returned sludge, and two third of returned sludge directly enters the biochemical treatment unit; in a ferrate oxidization treatment unit, one third of returned sludge enters a sludge reaction tank to react with input ferrate for 10-30 minutes, wherein the mass ratio of the ferrate to the excess sludge is 0.2:1; and a sludge dewatering unit performs filter pressing or centrifugal dewatering of the excess sludge. The novel sewage treatment process can reduce 35-45% of excess sludge quantity, has the advantages of being simple in devices, few in investment, free of pollution, convenient to operate and manage, low in operation cost and the like, and is suitable for application of industrial municipal sewage treatment plants.

The invention relates to the field of materials for lithium ion batteries, in particular to a nano silicon-carbon composite anode material for lithium ion batteries, and a preparation method of the nano silicon-carbon composite anode material. The nano silicon-carbon composite anode material is prepared from nanocrystalline graphite particles, nano silicon and a carbon binding agent, wherein the nanocrystalline graphite particles and the nano silicon are taken as main lithium storage materials. A nano-silicon shell structure is internally provided with a graphite support and is externally coated with amorphous carbon, thus solving the problem of poor silicon conductivity. Therefore, the nano silicon-carbon composite anode material has better coulombic efficiency and cycling performance while meeting the requirement of high capacity, thus having good application prospect.

The invention relates to the field of alkaline zinc-manganese dioxide cells, and specifically relates to an alkaline zinc-manganese dioxide cell. The alkaline zinc-manganese dioxide cell comprises a positive electrode cap (1), a positive electrode ring (2), a steel shell (3), a current collector copper nail (4), a negative electrode zinc gel (5), diaphragm paper (6), a sealing ring (7), a supportring (8) and a negative electrode bottom (9); the positive electrode ring (2) is composed of electrolytic manganese dioxide, conductive agent graphite and electrolyte; and the negative electrode zincgel (5) comprises zinc powder, a binding agent, an expanding agent, an electrolyte potassium hydroxide solution and polyethylene glycol 2000. According to the alkaline zinc-manganese dioxide cell provided by the invention, the discharge performance of the alkaline zinc-manganese dioxide cell is not influenced or even slightly improved, and the problem of expansion of the zinc gel is effectively solved; and meanwhile, the hydrogen content of the cell is remarkably reduced, and the liquid leakage risk of the cell is greatly reduced, therefore, the discharge performance of the cell is effectivelyimproved, the storage life of the cell is prolonged, and the safety performance of the cell is remarkably improved.

The invention discloses a blank pre-upsetting forming die and a blank pre-upsetting forming method, and belongs to the technical field of material forging. The blank pre-upsetting forming die is firstly designed, a cylindrical blank with a high height-diameter ratio is changed into a blank of which the two ends are frustum-shaped and which is low in height-diameter ratio, and a flat anvil upsetting technology is carried out. For an original blank with a high height-diameter ratio, the original blank is pre-upset by adopting the method in the upsetting forming process to form a cylindrical structure of which the two ends are frustum-shaped; as a contact area between the blank and the die is small, the die slightly hinders the flow of metal on the end part of the blank, and a hard deformation area does not exist, the blank difficultly forms a drum type in the later upsetting process, the deformation is uniform, and the upsetting effect is good. The invention provides a good preprocessing method for upsetting and forming the cylindrical blank with the high height-diameter ratio.

The invention provides a combined sewage treatment device which integrates the activated sludge process and the biofilm process, organically combines the advantages of the suspension growth technology and the attached growth technology, combines anaerobic and aerobic properties in one device, leads the two to promote each other and improves the sewage treatment capacity and the treatment efficiency. The combined sewage treatment device is characterized in that the combined sewage treatment device comprises a biological phosphorus removal zone, a denitrification zone, a nitrification zone and a sludge-water separation zone positioned in a tank body structure, the biological phosphorus removal zone is connected with a sewage inlet pipe, the sludge-water separation zone is provided with a water outlet pipe, a residual sludge discharge pipe and a return sludge hole, and the return sludge hole leads to the biological phosphorus removal zone and / or the denitrification zone; and a rotating biological disk is arranged in the nitrification zone.

The invention discloses a process for separation of acid and salt in salt-containing waste acid. The process includes: subjecting salt-containing waste acid to multi-period adsorption-elution treatment by an acid adsorption resin column, during adsorption, passing waste acid return liquid, residual waste acid liquid and a salt-containing waste acid stock solution obtained in a previous period sequentially through acid adsorption resin from the bottom up for acid adsorption, collecting residual elution water, deacidified salt-containing liquid and waste acid return liquid successively, stoppingliquid feeding after the volume meeting the requirement, completely feeding salt-containing waste acid in the first period, during elution, passing elution water return liquid, residual elution waterand elution water obtained in a previous period through acid adsorption resin from top to bottom in sequence for elution, and collecting residual waste acid liquid, desalted acid-containing liquid and elution water return liquid successively, stopping water inflow after the volume meets the requirement, completely feeding elution water in the first period, and performing repetition till completing treatment of the salt-containing waste acid. The process disclosed by the invention can be used for separation of various acids and cations, has good separation effect, is not limited by the heightof the resin column, does not generate volume expansion, and has wide applicability.

The invention relates to a filamentous sludge bulking recovery method based on a non-nitrification A / O (anaerobic / aerobic) biological phosphorus removal process, and belongs to the field of urban domestic sewage treatment and regeneration. In virtue of an A / O biological phosphorus removal reactor, filamentous bulking is recovered in two stages, and the filamentous sludge bulking recovery method comprises the following steps: firstly keeping load at 0.40-0.50kg COD (chemical oxygen demand) / kg MLSS (mixed liquor suspended solid) / d, regulating reflux ratio to 75%-85%, controlling the aeration of an aerobic stage to form DO (dissolved oxygen) gradient aeration of 1.4mg / L-1.6mg / L, 0.9mg / L-1.0mg / L and 0.9mg / L-1.0 mg / L to eliminate filamentous fungi, reducing the reflux ratio to 45%-55% when an SVI (sludge volume index) value is reduced into the range of 180mL / g-250mL / g, and reducing the aeration to form the DO gradient of 0.9mg / L-1.1mg / L, 0.4mg / L-0.6mg / L and 0.4mg / L-0.6mg / L. Under the operation parameter conditions, the filamentous bulking caused by the DO and high-load impact (1.54kg COD / kg MLSS / d) can be recovered rapidly, the SVI is reduced from 569.8mL / g to below 150mL / g, and the recovery time of bulking of the lighter filamentous fungi is shorter.

The invention relates to the field of silicon nitride preparation and discloses a preparation method of silicon nitride powder. The preparation method comprises the steps: 1) equipment preheating, 2)material heating: putting a mixture of silicon powder and ammonia, and nitrogen in a coil of a microwave plasma preheater for mixing and preheating to 700-750 DEG C, putting the materials in a heatingarea of an inner cavity of a suspension reactor for heating continuously, and supplying an upward nitrogen vortex flow into the heating area to drive the materials to rotate, 3) reaction: dropping the materials to a reaction area, supplying the upward nitrogen vortex flow into the reaction area to drive the materials to rotate for reaction to generate silicon nitride during dropping, 4) heat insulation and cooling: allowing silicon nitride and unreacted nitrogen to enter a heat insulation cooler, cooling the materials through water cooling, then through water cooling and air cooling, and finally through water cooling, and 5) gas-powder separation. The silicon nitride powder prepared according to the method is high in purity, small in particle size and high in yield and is produced quickly, and an alpha phase content is high.

The embodiment of the invention discloses a data communication system, a router and a data sending and mobility management method, wherein the data sending method comprises that a first access router receives data; routing is determined to be sent according to the query result of a local mapping information database inquired by the target ID address of the data; the data is sent; and wherein the local mapping information database stores the mapping relationship between the ID address and a local position address. The embodiment of the invention fully separates a terminal ID, a local position and a global position, solves the expansion and expandability problems of a routing table that the traditional Internet encounters, realizes the sending of the terminal data under the condition of not changing the terminal and the address protocol stack, adopts a hierarchical mapping service design, and can reduce the capacity of local and global storage information, and improve the inquire speed.

The invention discloses an ammonia-cooled ammonia reclamation method and a mating device thereof. Gas phase ammonia in purge gas is condensed into liquid ammonia by using the principle of ammonia decompressed evaporation and refrigeration, and the separated liquid ammonia is used as a refrigerant for continuously cooling the gas phase ammonia in the purge gas, over and over again. The eliminated high-pressure equipment and pipelines which still can be continuously used in the ammonia synthesis process are used for decompression to form an ammonia-cooled ammonia reclamation device, wherein the device comprises a purge gas pipeline, a cold and heat exchanger, an ammonia evaporation condenser and a liquid ammonia storage tank; and the formed ammonia-cooled separation circulating process in the purge gas is characterized in that: the liquid ammonia prepared from the purge gas is conveyed into the ammonia evaporation condenser and evaporated into gaseous ammonia so as to obtain a large amount of cold energy, and the gaseous ammonia in the purge gas is continuously cooled so as to fulfill the purpose of separating the gas phase ammonia in the purge gas. The device has the advantages of energy conservation, low investment and good usability.

The invention discloses a biomass double-shaft screw pyrolysis device. The biomass double-shaft screw pyrolysis device comprises a hollow cylindrical enclosure with a U-shaped cross section, wherein an opening of the hollow cylindrical enclosure is sealed by a seal cover of a machine cover, thereby forming a sealed reaction region; the reaction region formed in the enclosure in the axial direction is sequentially divided into a plurality of individual pyrolysis sub regions; the cylinder wall of the enclosure is of a hollow sandwiched structure so as to act as a flue gas channel; the enclosure is centrally provided with double-shaft screw packing augers which penetrate through the reaction region axially; the rotation directions of the two packing augers are opposite; biomass entering from a biomass inlet is mixed and conveyed by the double-shaft screw packing augers, is baked in the baking sub regions sequentially, and is respectively subjected to catalytic gasification and reforming in gasification sub regions and reforming sub regions, so that high-quality synthesized gas products are generated and are discharged from a pyrolysis gas outlet. The biomass double-shaft screw pyrolysis device intensifies the material mixing and heat transferring and mass transferring effects; biomass is gasified efficiently by adopting the inner and outer thermal combination and catalytic effect, so that the problem of axial and radial breathing of the screw pyrolysis device in running at high temperature is solved.

The invention provides a cathode material and a battery containing the same. The cathode comprises a lithium titanate active material, a binder and activated carbon fibers, wherein the porosity of the activated carbon fibers is 60-95 percent, the specific surface area is 100-2,500m<2> / g, and the aperture is 0.1-50nm. In the invention, the performance of the battery is obviously improved, and the problem of severe expansion of the battery containing the lithium titanate active materials in the processes of formation, use and high temperature can be better solved; the performance of the prepared battery is stable, and the cycle performance, the safety performance and the quality safety of the battery are improved; and the provided battery conforms to the standards of the traditional technology and use, can be normally and safely used and has long cycle period and good rate discharge performance, thus the lithium titanate active material with good performance can be industrially applied simply and better without a complicated pretreatment process and the strict control of preparation processes.

A solar heat-collecting tube expansion mechanism comprises a sliding rail, wherein the sliding rail is installed on a cross beam in a hanging mode, a sliding block is arranged inside the sliding rail and can slide freely inside the sliding rail, the sliding block is connected with the upper end of a connecting rod, a hoop is installed at the bottom of the connecting rod, a heat-collecting tube is fixed through the hoop, when a system is in the transition process from the cold state to the hot state and when the heat-collecting tube is expanded continuously, the sliding block moves along with the heat-collecting tube, when the system stops operation, with the retraction of the heat-collecting tube, the sliding block returns to the initial position, the heat-collecting tube is fixed, and simultaneously, the problem of thermal expansion of the heat-collecting tube can be solved, so that the heat-collecting tube can operate safely and stably. The mechanism solves the problem of high-temperature expansion of the heat-collecting tube effectively and is simple in structure and easy to implement.

The invention provides a UPS (Uninterrupted Power Supply) storage battery detection device. The UPS storage battery detection device comprises an MCU (Main Control Unit) control module (1), a sensor module (2), a key input module (3), an LCD display module (4), a wireless communication module (5) and an I / O reserved port (6),wherein the MCU control module takes the Charge Time Measurement Unit (CTMU) embedded in PIC series single chips of a Microchip Company, works in cooperation with an A / D (Analogue / Digital) converter, and can be used for accurately measuring time, capacitance and relative change of the capacitance, the sensor module (2) is provided with a high-precision capacitive touch sensor for data acquisition and used for converting micro-deformation caused by the swelling of the UPS storage battery into the variable quantity of the capacitance, and the I / O reserved port (6) is used for driving a peripheral circuit. The UPS storage battery detection device is capable of effectively improving the accuracy and the speed of detection on the UPS storage battery, and has the characteristics of simple structure, low price and the like. The problem of battery swelling resulting from bad battery protection circuit, poor performance of a charger and the like is solved, the current situation of difficult maintenance of the UPS storage battery is improved, and meanwhile, potential safety hazards are avoided.

The invention discloses an adaptive dynamic-surface double neural network control method of a micro gyroscope. The method comprises the following steps that 1) a mathematical model of the micro gyroscope is established; 2) two adaptive neural network controllers, namely a neural network 1 controller and a neural network 2 controller, are designed, and a neural network control method is used so that output of the neural network 1 controller approaches the sum of the dynamic feature of the micro gyroscope and external interference and output of the neural network 2 controller approaches a sliding-mode switching item; 3) an adaptive dynamic-surface double-neural-network controller is designed on the basis of the dynamic surface; and 4) the micro gyroscope is controlled on the basis of the adaptive dynamic-surface double-neural-network controller. According to the invention, the micro gyroscope is controlled dynamically on the basis of the adaptive dynamic-surface double-neural-network controller related to the dynamic surface, so that the speed of a micro gyroscope becomes stable rapidly, manufacturing errors are complemented, the environment interference is overcome, the system buffeting is reduced, and the system sensitivity and robustness are improved.

The invention discloses an ecological controlling reactor of activated sludge filamentous bacterium and craft, which comprises the following steps: including intake port 2, water outlet 9 and reaction zone 4; fixing micro animal constitute filler 5 and some hydraulic barriers 7; seeding tubifex on the micro animal composite filler; mixing active sludge in aero-tank and water mixture; leading to reactor; reducing and controlling filamentous bacterium through treatment; advancing sludge deseription; increasing flow path though flowing baffle; reaching the purpose of inhibiting foam and bulking. This invention can repair active sludge, which can solve problems of sludge bulk and foam caused by filamentous bacterium.

The invention relates to a content and network fused anycast routing system located in a network environment comprising an edge network and a kernel network. The system comprises a mapping server, an edge router and servers. The edge router is provided in the edge network at a junction of the edge network and the kernel network. The mapping server is located in the edge network. The servers are disposed in the edge network. In the edge network, routing is performed based on local identifiers, and anycast is based on routing. In the kernel network, routing is performed based on global position symbols, and anycast is based on querying. The mapping server is used for storing load conditions of the servers and providing server copies, used for describing the load conditions of the servers, to the edge router. The edge router acquires the server copies, selects the optimal one from the server copies, transmits customer demands to the optimal server and performs global position symbol and local identifier conversion for the customer demands.

The invention discloses a method for producing heavy basic copper carbonate by a new secondary oxidation copper removal and air stripping process. Copper, ammonia and ammonium bicarbonate are taken as raw materials, and the method comprises the following steps of: performing leaching synthesis reaction, filtering, performing thermal decomposition, separating, washing, drying, crushing, packaging after inspection, and the like. By the preparation method, the decomposition reaction speed is improved, byproducts and waste materials are avoided, the utilization rate of the raw materials is high, environmental pollution is avoided, a problem of water balance in the production process is solved, and the method accords with a sustainable development policy and belongs to a clean production process.

The invention relates to an electrolyte applicable to a lithium titanate battery. The electrolyte comprises an organic solvent and lithium salt. The electrolyte further comprises one or more of phenylacetylene derivatives which account for 0.05-10wt% of the electrolyte. The structural formula of the phenylacetylene derivative is as shown in the specification, wherein in the specification, R1, R2 and R3 are independently selected from any one of hydrogen, hydroxyl, halogen, alkyl, alkoxyl, halogenated alkyl, halogenated alkoxyl, alkylene, halogenated alkylene, phenyl, halogenated phenyl, biphenylyl, halogenated biphenylyl, phenyl ether groups, halogenated phenyl ether groups, halogenated triphenyl, amido, ester groups and cyano groups. Halogen is any one of F, Cl and Br. Halogenation is partial substitution or full substitution. According to the electrolyte provided by the invention, the discharge capacity and circulating service life of the lithium titanate battery are improved by adding the phenylacetylene derivatives in the electrolyte. A swelling problem of the lithium titanate battery in the circulating process is further appropriately solved.

The invention relates to an oxidation ditch process with functions of preventing and controlling activated sludge bulking. The oxidation ditch process is characterized by comprising the following steps of: making sewage enter an anaerobic zone; mixing the sewage with sludge output from a hypoxic preconditioning zone for reacting in the anaerobic zone; making a mixed solution output from the aerobic zone enter an oxidation ditch; reacting the mixed solution in the oxidation ditch, and making the reacted mixed solution enter a secondary precipitation basin through an outflow channel of the oxidation ditch for sludge-water separation; discharging supernatant produced in the secondary precipitation basin from a water outlet; refluxing a part of sludge produced in the secondary precipitation basin into a pre-concentration basin; discharging the residual sludge out of a system; conveying high-concentration sludge formed at the bottom of the pre-concentration basin to a hypoxic preconditioning basin; and conveying supernatant formed on the upper part of the pre-concentration basin to the outflow channel of the oxidation ditch through a supernatant conveying pipeline, mixing with outflow of the oxidation ditch, and making the mixed solution enter the secondary precipitation basin. Due to the adoption of the process, high sludge concentration can be kept in the system, the pollutant removing rate can be remarkably increased, and the common problem of activated sludge bulking existing in the oxidation ditch can be effectively prevented and controlled.

The invention discloses a wall-mounted pressure-bearing solar water heater comprising a bracket (1), wherein the bracket (1) is provided with a hot water tank (2); and the lower end of the hot water tank (2) is movably connected with vacuum glass heating tubes (11) which are evenly distributed by virtue of a vacuum glass tube socket (15). The wall-mounted pressure-bearing solar water heater is characterized in that the hot water tank (2) is internally provided with a heat-exchange inner container (13); each vacuum glass heating tube (11) is internally provided with a heat-exchange tube (12); the lower end of the heat-exchange inner container (13) is movably connected with heat exchange tubes (12) which are evenly distributed; the hot water tank (2) is provided with a water inlet tube (5) and an water outlet tube (6); and the heat-exchange inner container (13) is provided with a heat-exchange medium inlet tube (14) and an overflow tube (9). The wall-mounted pressure-bearing solar water heater has the advantages of good heat collection effect, low cost and long service life, does not occupy indoor space and is convenient to maintain and install.

The invention relates to a spatial data storage method. The method comprises the steps: firstly analyzing a spatial data package, decomposing data in the spatial data package into vector data, symbol data and label data; then storing the vector data in a spatial data bank; decomposing the symbol data into symbols of smallest units and storing the symbols in the spatial data bank; and analyzing the label data into a file and storing the file in the spatial data bank. The invention further relates to a spatial data storage system and the method and the system for reading the spatial data stored through the storage method. Through decomposing a symbol library into symbols of smallest units, fault tolerance of the symbol library is greatly improved, and the maintaining problem of the symbol library is solved.