159results about How to "Reduce erection" patented technology

The invention discloses a full-digital power controller for a satellite. The full-digital power controller comprises a shunt, a charging controller, a discharging regulator, a balance controller and a central processor based on a DSP (digital signal processor). The power controller adopts a three-region control mode including a shunt region, a charging region and a discharging region, and the three regions are distinguished by using the DSP for sampling bus voltage. The balance controller samples the voltage of each lithium battery through the DSP to realize a balance control algorithm in DSP software so as to realize balance control among the lithium batteries. By the full-digital power controller for the satellite, full-digital control of a satellite power system is realized, a great quantity of hardware circuits, such as MEA (multi-electrode array) circuits and PWM (pulse width modulation) generation circuits are saved, the system integrity is improved, and system reliability is fundamentally and greatly improved.

The long span bridge erecting apparatus and process belongs to the field of traffic technology, and is especially suitable for constructing military long span bridge in wartime. The long span bridge erecting apparatus consists of chassis, arm folding crane, erecting platform, leading-in girder unit, leading-in girder sheath, movable stand, chassis frame and bridge section. The long span bridge erecting apparatus has lowered erecting height, convenient transportation, composite structure and high reliability. The present invention has short construction period, low operation plane and relatively simple construction and other advantages.

The invention relates to a solar driving device of a coil type automatic walking sprinkler. The device comprises a coil type sprinkler, wherein the coil type sprinkler is provided with a solar panel, a light illumination sensor, a rotary mechanism, a driving motor, a speed reducer, a speed sensor and the like. The device has the advantages that the device is driven by a motor which can be powered by solar energy, so the defect of high energy consumption of common water turbine driving of the general sprinkler is overcome; a storage battery is powered by the solar panel, so the complicated condition of a power supply line overhead a farmland is avoided; the solar panel is provided with an intelligent sun tracing system, the solar panel is enabled to automatically rotate and adjust the angles, and the higher photovoltaic power generation efficiency of the solar panel is realized; a hose pipe is provided with the speed sensor, a closed loop control system is controlled through speed to enable the hose pipe of a coiling vehicle to move at constant speed during pipe coiling, the speed difference caused by the winding layering of the hose pipe is avoided, and the uniform distribution of water spraying amount is ensured; the defects of high energy consumption, heavy weight, nonuniform distribution of water spraying amount and the like of the existing coil type sprinkler are overcome, and the solar driving device is a novel green, energy-saving and environment-friendly type intelligent driving device.

The invention relates to a construction method for a bridge with few brackets. The construction method comprises a dual-hoop construction step. The dual-hoop construction step comprises the following steps of mounting dual hoops on the same pier column, wherein the dual hoops comprise a first hoop and a second hoop of which the structures are the same, the first hoop is provided with a first supporting piece, the second hoop is provided with a second supporting piece, and the first supporting piece and the second supporting piece are staggered in the radial direction of each of the pier columns; and mounting first cushion blocks on the dual hoops, wherein the top surfaces of the first cushion blocks and the top surfaces of the second supporting pieces are on the same level surface. The invention also relates to a bridge. The bridge comprises bridge piers and a cast-in-situ box beam constructed by the dual hoops which are erected by the method disclosed by the invention. An upper part structure is directly mounted to the first cushion blocks and the second supporting piece, so that the erection of the bracket is reduced, and the construction is convenient and fast; no-damage construction is performed on the pier columns, so that the construction efficiency is improved; and each of the hoops on the high pier columns adopts a corresponding dual-semicircle shaping steel die, so that the situation that the contact surface of the hoops and the contact surface of the pier columns are matched is guaranteed, and the hoops can be recycled.

The invention belongs to the technical field of steel structure construction, and particularly relates to an installation method of a special-shaped and curved-surface suspension type steel structuresystem. The problems are solved that the construction precision of a traditional installation method is difficult to guarantee, the construction period is long, a large amount of cost needs to be invested in scaffold and inclined suspender layer-by-layer hoisting, and many high-altitude hidden dangers exist. The special-shaped and curved-surface suspension type steel structure system comprises a core cylinder, a giant truss, a temporary support, an inclined suspender and beams of all floors. The installation method comprises the following steps that S1, the core cylinder is constructed; S2, the temporary support is installed; S3, the giant truss is assembled on the ground; S4, the giant truss is hoisted; S5, the inclined suspender is installed; S6, the temporary support is unloaded; S7, the beams of all the floors are hoisted; and S8, the displacement of the giant truss is monitored in the steps of S4-S7. According to the installation method, the construction precision is guaranteed, the installation efficiency is high, the installation construction period is shortened, and the operation safety risk is reduced. The erection and hoisting cost of a scaffold is saved, the high-altitude butting joints are reduced, the near-edge protection cost is reduced, and therefore the construction cost is reduced.

The invention relates to a radar digital platform leveling device and method. The leveling method comprises the following steps of sensing the attitude of a vehicle body and a coordinate conversion digital platform by utilizing an attitude angle sensing system to establish a digital platform; calculating the value of an antenna azimuth code salver, the value of an antenna pitch code salver and a transverse rolling angle formed between an antenna array surface X axis and a horizontal plane which are parallel to each other during the working process of a radar; and driving an antenna to the appointed position, the pitch position and the antenna X axis attitude position to realize the radar leveling function. The leveling device comprises an attitude angle sensing system, an antenna drive control system and an antenna leveling mechanism. The attitude angle sensing system is used for sensing a transverse inclination angle and a longitudinal inclination angle of the prior vehicle body as well as an included angle formed between a reference axis of the longitudinal inclination attitude angle and the north direction; the antenna drive control system is used for converting the antenna to the appointed direction through the azimuth code salver and an azimuth driving mechanism; a supporting back frame of the antenna is pushed to rotate by a pitch driving mechanism and the pitch code salver, so that the antenna reaches an appointed pitch angle; the antenna leveling mechanism is used for pushing the antenna to carry out one-dimensional rotation around a ball bearing, so that an X axisin an antenna array surface rectangular coordinate system is parallel to the horizontal plane, thereby the leveling of the radar is finished.

The invention discloses a cavern arch mould spraying concrete construction structure and a cavern arch mould spraying concrete construction process. The structure comprises an anchor rod, a steel structure, concrete and a template, wherein the anchor rod is fixed in a bed rock; the steel structure is fixed through the anchor rod; the detachable template is suspended and fixed and forms a cavern arch pouring space with the bed rock together; and the concrete is sprayed into the pouring space through the template. The construction process comprises the following steps of: rock bed surface treatment, anchor rod construction, inner steel fabric installation, I iron installation, outer steel fabric installation, template installation, concrete spraying and the like. The construction needs no concrete delivery pump, does not need to build a full bearing scaffold and needs only a few constructors and spraying equipment. Therefore, construction materials are greatly saved; the construction period is short; arch lining concrete can be substituted by the mould spraying concrete of an underground cavern permanent structure; and the arch mould spraying concrete is more convenient to operate and the quality is assured.

The invention discloses a kind of wireless switch-in device which includes central control indoor model and remote switch-in outdoor model, which two are connected by wires. The former model accomplishes the normal function such as base band and middle frequency process, includes signal processing unit, MODEM unit, control unit, input and output unit, power unit and data correspondence interface and net management system interface; the post model includes several radio frequency unit and correspondent receiving and transmitting antenna. The invention has a lot of advantages.

The invention provides method and equipment for automatically controlling rail-bound vehicles and tracks for rail-bound vehicles. The method comprising: monitoring and controlling speed of vehicles according to figures of each track such that vehicles move at any time at least with a lowest speed which permits vehicles to arrive in the next parking location (HP2) on the driving direction because of kinetic energy thereof when the driver is conking out. Vehicles travel according to a speed lower than the lowest speed calculated in order to arrive in the next parking location (HP2) on the driving direction when the driver is conking out within a predetermined ramp track interval according to the invention, characterized in that, measurement data aiming at vehicles are collected and analyzed at least in part of regions (TB1, TB2) calculated and determined based on track layout of related track interval. Herein, vehicles are ensured only by analyzing the measurement data aiming at vehicles in the part of regions (TB1, TB2) to implement the safe parking, and protection for vehicles are executed via vehicle braking.

The invention relates to a slab supporting construction method by reversely suspending a template. The slab comprises a steel structure and a concrete structure to be poured, wherein the steel structure comprises steel beams. The slab supporting construction method by reversely suspending a template comprises the following steps: (1) prefabricating concrete blocks, and mounting the concrete blocks on the steel beams according to the interval which is calculated by stress after the designed strength is achieved, wherein the height of the concrete blocks equals to that of a to-be-poured slab; (2) arranging a wood cushion block on each concrete block which is already arranged; (3) putting an upper keel on the wood cushion block which is already arranged to enable the upper keels to cross a plurality of steel beams; (4) mounting split suspenders in a suspending manner downward from the upper keels, and mounting corresponding lower keels for the lower ends of the split suspenders; (5) laying a template on the lower keels; and (6) pouring concrete. The invention further relates to the construction device in the construction method.

The invention discloses a stern part segment constructing method. In the stern part segmented constructing process, a ribbed plate, facing one side of a bow or stern, of the stern part serves as a platform base plane, remaining ribbed plates, a connecting plate and a platform plate are hung on the platform base plane to form a hull frame, and finally an outer plate is hung on the hull frame; in the ship stern part segment constructing process, the ribbed plate, facing one side of the bow or stern, of the stern part serves as the platform base plane, the remaining ribbed plates, the connectingplate and the platform plate are hung on the platform base plane to form the hull frame, the working face constructed by the stern part segment is changed into the plane from the original curved face,so that the stern part segment is more convenient to erect, erection of a complex curved face formwork jig frame is omitted, and stern part segment constructing time is saved.

The invention relates to a print service system and a print service method by using campus network cloud sharing. An Internet protocol (IP) network is utilized in the print service system to realize cloud sharing and self-service print service, a student or a teacher can submit a print requirement on arbitrary networking equipment, and after the requirement is confirmed, the student or the teacher goes to a print shop to pay for the print requirement by swiping a card to acquire printed materials. The system comprises two parts, namely a client and a print-shop-end system. By the system and the method, only one piece of networking equipment is required by the print client, the print requirement can be submitted, the to-be-printed file of a user can be exported when the user swipes the card in the print shop, and payment for the print requirement is convenient by swiping the card, so that time and cost are saved; and a queue-jumping print task is supported, and the queue-jumping print task is performed in the background, so that convenience is provided for a user which needs to acquire a print result immediately.

The invention discloses a mobile high-voltage power station, which comprises a container-type case, a diesel engine, a high-voltage generator, an electrical cabinet and a radiating water tank. The diesel engine is arranged in the container-type case and is connected with the high-voltage generator via a high-elasticity coupler. The high-voltage generator is connected with the electrical cabinet, a machine-set base plate is arranged on the bottom of the container-type case, and the machine-set base plate matches with a trailer chassis and is detachably fixed to the trailer chassis. The mobile high-voltage power station is capable of generating and distributing power constantly, moving integrally under action of the trailer to supply power nearby, reducing construction of electric power line and lowering input cost, is suitable for all-weather working and capable of meeting power supply requirements in different occasions, and is small in size, simple in structure and easy to implement.

The invention discloses a formwork reinforcing device without top support for a post-cast strip and a construction method thereof. The formwork reinforcing device comprises basement top plates, waterstop screw rods, main rib steel pipes, timber cushion blocks, clamps, back rib timbers, formworks, a post-cast strip beam and plain concrete columns, wherein the basement top plates are respectively arranged at both ends of the post-cast strip beam; the main rib steel pipes are arranged at the upper end and lower end of each basement top plate at equal intervals along the horizontal direction; three water stop screw rods penetrate through each of the main rib steel pipes at equal intervals along the longitudinal direction; the timber cushion blocks are respectively arranged at one end of the upper end surface of each basement top plate. The formwork reinforcing device has the beneficial effects that the problem of accumulation of revolving materials such as lower steel pipes, formworks, timbers and the like at the overhanging end of the post-cast strip in the building construction project are solved, the construction cost is reduced, the load bearing function of the formwork supportingsystem can be replaced, and the project quality of the beam plate at the overhanging area of the post-cast strip is effectively guaranteed; the operation is simple, the use is convenient, the good social benefit is realized, and the formwork reinforcing device is suitable for being popularized and applied.

The invention relates to the technical field of cloud computing, in particular to a campus shared printing service system and method based on cloud computing. According to the campus shared printing service system and method, an IP network is used for realizing cloud sharing and self-help printing service, and a student or a teacher can submit a printing request to any networked device and then swipe a card for payment in a printing shop after the printing request is confirmed to obtain a printed document. The system comprises two parts, wherein one part is a client-side and the other part is a printing shop terminal system. By means of the printing client-side of the system, only one networked device is needed for submitting the printing request, and then the user can call out the document to be printed by swiping the card in the printing shop; moreover, payment by swiping the card is quite convenient, so that time and cost are saved; besides, jump-a-queue printing is supported, the queue is jumped at a backstage, and therefore convenience is provided to the user who wants to take a printing result immediately.

An adhesive condom applicable to the male sexual organ to reduce compression and thereby reduce the difficulty of attaining and maintaining erection, improve barrier protection and prevent additional sexually transmitted diseases, to improve the efficacy of contraception (if contraception is desired) and to enhance utilization rates by enhancing sensation. Optimal production geometry and practical modes of application are also described.

The invention relates to a main structure construction method by sequentially processing beam slab frameworks, short-leg shear wall and column frameworks. The method includes the following steps: a, strapping short-leg shear wall and column rebars; b, mounting the beam slab frameworks; c, calibrating the shear wall and column rebars before strapping beam rebars, immediately performing inspection after strapping the beam rebars, and then strapping floor slab rebars; d, mounting the short-leg shear wall and column frameworks when strapping the floor slab rebars; and e, simultaneously pouring concrete to beam slabs, floor slabs and short-leg shear walls and columns. In the method, mounting of the short-leg shear wall and column frameworks and strapping of the beam slab rebars and the floor slab rebars which are completely not in the same working face can be performed simultaneously, and the mounting of the short-leg shear wall and column frameworks becomes a non-critical work from a critical work and does not occupy construction periods, so that main engineering construction duration of the whole frame shear structure is reduced, and a main structure construction period and time intervals in shutdown and waiting of labor force are greatly shortened.

The invention relates to a parking method. The method includes the step that a navigation system based on city parking space information is provided. The navigation system comprises a plurality of parking lot information subsystems, a plurality of parking administrator subsystems, a parking space information management subsystem and a plurality of parking space information navigation terminals. The parking lot information subsystems are located in parking lots, the parking administrator subsystems are held by parking administrators of roadside parking lots, the parking space information navigation terminals are located in automobiles, and the parking space information management subsystem transmits parking space data uploaded by the parking lot information subsystems or the parking administrator subsystems in a wireless mode to the parking space information navigation terminals in a wireless mode. Through the parking method, the intelligentization degree of urban traffic can be improved, automobile drivers can search for nearby free parking spaces rapidly through wireless terminal equipment conveniently, and increasingly tense urban road space is relieved.

The invention discloses an overhead pipeline paint spraying walking device and an overhead pipeline paint spraying method. The overhead pipeline paint spraying walking device comprises an annular support, walking assemblies, limiting assemblies and spraying assemblies. The annular support is provided with an opening used for passing of a pipe bracket of an overhead pipeline. The walking assembliesare arranged on the inner side of the annular support and used for walking on the outer wall of the pipeline. The limiting assemblies are arranged on the inner side of the annular support and used for conducting limiting so that the annular support can move in the axial direction relative to the pipeline but cannot slide along the circumference of the pipeline. The spraying assemblies are connected with the annular support and used for conducting spraying on the pipeline. By means of the overhead pipeline paint spraying walking device and the overhead pipeline paint spraying method, aloft work of operators is effectively reduced, building of temporary facilities is reduced, safety is improved, manufacture and installation are convenient and rapid, and the spraying efficiency is high; thebottom faces of magnets are each in an arc shape matched with the outer wall of the pipeline, the attraction area is enlarged, and the pipeline attraction force is improved; and the annular support isformed by multiple connected arc-shaped plates together so that the overhead pipeline paint spraying walking device and the overhead pipeline paint spraying method can adapt to different diameters ofpipelines, and the application range is widened.

The invention discloses a tightness test device of a ship. The tightness test device is used for the tightness test of the welding line section of the ship and comprises a vacuum cover positioned on the welding line section, the top of the vacuum cover is communicated with an air exhausting connector; the air exhausting connector comprises a compressed air conveying pipe and an exhausting tube, one end of the exhausting tube is vertically mounted on the vacuum cover and the other end of the exhausting tube is communicated with the compressed air conveying pipe; the compressed air conveying pipe is obliquely arranged relative to the exhausting tube, a compressed air inlet is formed in the lower end of the compressed air conveying pipe and a compressed air outlet is formed in the higher end of the compressed air conveying pipe. The pre-tightness test of the corner welding line and butted seam of the partial cabin can be achieved by the tightness test device of the ship during the segmented manufacturing stage, so that the difficulty that the tightness test can be carried out only after all cabin structures are completed in the prior art can be solved and the tightness test process can be carried out in advance.

The invention discloses a bridge production system. The bridge production system comprises a bridge body steel bar binding area, a bridge body pouring area and a gantry crane arranged on the bridge body steel bar binding area and the bridge body pouring area in a striding manner, and the gantry crane is provided with a lifting and moving device. Compared with the prior art, various bridge body prefabricated web steel bar binding table bases are provided in the scheme, bridge body steel bar framework binding is normalized and standardized, consumption of labor force is greatly reduced, the construction period is shortened, and integrity is high. The various bridge body prefabricated web steel bar binding table bases are formed by splicing steel structural pieces and can be cyclically used, the usage number of the binding table bases is reduced, the construction using land is reduced, and convenience is provided for field management. Rubber drawing and pulling bar penetrating construction can be rapidly finished through a rubber bar drawing and pulling device, a prestress hole channel is embedded, the labor intensity is low, and the work efficiency is high. In a side beam pouring tool, a first supporting plate of an effective supporting part can be independent, the size is small, the mass is low, operation is more flexible and is gradually changed during demolding, and therefore damage to concrete can be reduced.

The invention relates to an anti-toppling tool for installation of ship rudder blades. The anti-toppling tool comprises a combined module vehicle and a rudder blade anti-toppling tool platform; the rudder blade anti-toppling tool platform is fixedly connected to the upper surface of the combined module vehicle through a platform connecting plate; rudder blade anti-toppling tool main body supportsare arranged on the rudder blade anti-toppling tool platform; a rudder blade mounting station is reserved at the position, between the rudder blade anti-toppling tool main body supports, of the rudderblade anti-toppling tool platform; reinforcing diagonal bracings fixedly connected to the combined module vehicle are symmetrically arranged on the outer sides of the rudder blade anti-toppling toolmain body supports; and anti-toppling bracings used for locking the rudder blades are symmetrically arranged on the inner sides of the rudder blade anti-toppling tool main body supports. The anti-toppling tool has the advantages that manual input is saved in the installation process of the rudder blades, the intrinsic safety degree of the installation is improved, in addition, a hydraulic unit transportation platform can be replaced, the vacancy rate of equipment is decreased, the function of the equipment of a company is exerted to the maximum degree, and the objectives of lowering the cost and improving the efficiency are achieved.

The selectable one-way clutch includes a pocket plate, a notch plate, a cover plate, and plate-like struts. A one end portion of each strut is provided with an engagement surface and a projecting portion. Each strut comes into an erect state in which the engagement surface of the strut erects from the other surface of the cover plate toward the notch plate side. The selectable one-way clutch moves the notch plate in the axial direction to change a distance in the axial direction between the pocket plate and the notch plate, thereby carrying out switching between an out-of-engagement state in which the erecting struts cannot contact with the notches and a one-way clutch state in which the erecting struts can contact with the notches.

The invention relates to a lifting method of a large-span steel structure. The method includes the steps of 1, preparing for construction; 2, positioning multiple machines; 3, performing assembly and grouping; 4, re-checking dimensions; 5, determining lift points and binding ropes; 6, checking for overall lifting; 7, aligning bolts with holes; 8, fastening all bolts; and 9, removing a lift. By using the lifting method, temporary scaffolds to be set up in the construction process of a steel structural roof are greatly decreased, and aerial work is greatly reduced; site space is made full use, thereby enabling convenience and quickness; reserving or removing a roof and even setting up scaffolds in the lifting process of indoor raking machinery of similar structure are not required, thereby enabling significant benefit; lifting machinery of small tonnage is satisfactory to construction in resource-deficient areas and is easy to popularize.

The invention relates to the design of a quick load mounting and dismounting mode of an unmanned aerial vehicle and the power supply and data transmission reliability design. The unmanned aerial vehicle structure manufactured under the guide of the scheme is convenient to mount and dismount, high in environmental adaptability, high in function extensibility and good in man-machine working efficiency. With the adoption of the design scheme, a lot of time for mounting and dismounting a small unmanned aerial vehicle system in a war can be saved, and the effect of the system of the small unmanned aerial vehicle can be played better; the load and body connecting operation process of the unmanned aerial vehicle can be simplified through the mature structure processing production technology and the electrical communication interface design technology; on the basis of the mature design technology, the use requirement on quick mounting and dismounting of an aerial vehicle can be ensured through a buckling type physical inserting manner and an elastic needle type electric connecting manner. The design highlights the quickness of the structure connection and the reliability of the electrical connection.

This invention provides a method for finding an adjacent station and setting up connection with it by a coexistent base station at the initialization including: setting a section of DCTS in a down frame structure of a coexistent base station, in which, a newly started base station utilizes said DCTS to send a connection request report to a terminal in the region overlapped with the adjacent station to find the station and connect liaison with it based on the fed back report.

The invention discloses a method for installing an enclosed busbar and an auxiliary adjusting tool. The auxiliary adjusting tool is employed as a rigid support, which makes it easy to transport enclosed busbar pipe joints to other sites, and conduct detection and adjustment and also fitting-up and welding on the enclosed busbar pipe joints. Large amount of high altitude constructions are plumbed to ground horizontal construction, which meets high precision for installation and adjustment of the enclosed busbar. Simultaneous lifting of a permanent supporting crossbar and a temporary crossbar is employed, which helps to realize precise and safe lifting and installation of the entire three-phase busbar. According to the invention, the method and the auxiliary adjusting tool reduce large-area bent and air welding platform establishing, reduce safety hazards in construction, shorten installation construction period, and have the advantages of being economical, practical, and efficient.

The invention discloses a large stadium pipe truss and spiral duct modularization installation method and a combination structure. The installation method includes the steps of module division of pipe trusses and spiral ducts; factory manufacturing of pipe truss module units and spiral duct module units; assembling of pipe truss modules and spiral duct modules on a construction site. The combination structure is formed by arranging the spiral duct module units into the pipe truss module units through a plurality of fixing units in a penetrating mode. According to the large stadium pipe truss and spiral duct modularization installation method and the combination structure, truss structures and the spiral ducts are modularly assembled on the ground according to design models, the trusses and the ducts are hoisted at the same time, so a mechanical and electrical installation construction procedure and a steel structure construction procedure are combined into one, working time is greatly shortened, work high above the ground and setting up of auxiliary facilities are greatly reduced, the technical level and the efficiency are improved, meanwhile installation time is shortened, and safety of constructors is guaranteed.

The invention discloses a supporting system for construction of a super-long water pier prestressed cap beam. The supporting system comprises a support. The support comprises steel braces and steel tube stand columns, wherein every two steel braces are arranged between the two corresponding adjacent water piers and are arranged in a splayed shape, and every four steel tube stand columns are arranged on the periphery of the corresponding water pier. The bottom end of each brace rod is connected with a pin hinge and a support of the pin hinge. The support of the pin hinge at the bottom end of each steel brace is connected with a bearing platform of the corresponding water pier through an embedded steel plate II. The top end of each brace rod and the top end of each steel tube stand column are each provided with a horizontal supporting cover plate. The horizontal supporting cover plates are fixedly provided with longitudinal supporting beams. The two ends of each longitudinal beam are each provided with a stand box. The stand boxes support transverse bearing beams. Multiple longitudinal distributive beams are fixed to the transverse bearing beams. The longitudinal distributive beams form a systematic horizontal supporting face. The supporting system for construction of the super-long water pier prestressed cap beam is high in bearing capacity, high in stability and suitable for construction of the super-long water pier prestressed cap beam with the length being over 40 m, the installation height being over 8 m and the clear intervals between pier bodies being larger than 18 m.

The invention relates to a navigation system based on urban parking space information. The navigation system comprises multiple parking lot information subsystems, multiple parking manager subsystems, a parking space information management subsystem and multiple parking space information navigation terminals. The parking lot information subsystems are located in a parking lot, the parking manager subsystems are held by parking managers of a roadside parking lot, the parking space information navigation terminals are located in vehicles, and the parking space information management subsystem forwards parking space data wirelessly uploaded by the multiple parking lot information subsystems or the parking manager subsystems to the parking space information navigation terminals in a wireless mode. By means of the navigation system, the intelligent degree of urban traffic can be improved, vehicle drivers can conveniently and quickly find free parking spaces nearby through a wireless terminal device, and increasingly tense urban road space is saved.