110results about How to "Avoid chaos" patented technology

Provided are a system and a method for intelligent library management. The system is characterized in that the intelligent library management system comprises a computer management system, a network data communication server, an intelligent retrieval terminal, an RFID reader-writer, RFID electronic labels, a two-dimensional code printer, book two-dimensional code labels, an RFID entrance guard safety system, a book information database server, a mobile communication network, and client application software. The system and the method for intelligent library management realize accurate monitoring of books in any positions of a stack room, improve book retrieval efficiency, and monitor books in the stack room in real time. Readers borrow books, and return books in a self-service manner, and make the books in order on shelves. The system and the method provide convenience for readers and book managers to rapidly and accurately find books and positions thereof, thereby preventing false shelf of books and shelf disorder, and simplifying operation of the book managers.

The invention discloses a multifunctional soft water valve, which comprises a valve body, a cover, an ejector, a fixed valve plate and a movable valve plate, wherein the soft water valve is provided with a water inlet, a water outlet, a drain outlet, a first filter core interface, a second filter core interface and a salt absorbing port; an ejector outlet and an ejector inlet are formed in the soft water valve; the fixed valve plate is provided with a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole and a sixth through hole; the first through hole is communicated with the first filter core interface; the second through hole is communicated with the fifth through hole, and is communicated with the second filter core interface; the third through hole is communicated with the ejector inlet; the fourth through hole is communicated with the ejector outlet; the sixth through hole is communicated with the water outlet; the first through hole is adjacent to the second through hole; the second through hole is adjacent to the third through hole; the third through hole is adjacent to the fourth through hole; and the movable valve plate is provided with a water inlet channel, a conduction blind hole and a pollution discharge channel. The multifunctional soft water valve has the beneficial effects of practicability, large flow, saving in salt, environment friendliness and prolonging of the service life of the valve body.

The invention relates to high-torque hydraulic wrenching and disassembling equipment suitable for an outer-flat drilling rod, belonging to the field of drilling and exploring machineries. The high-torque hydraulic pipe-wrenching machine for wrenching and disassembling the outer-flat drilling rod is characterized by comprising lower clamping tongs, a floating device, clasp punching tongs, an orifice leaving oil cylinder, a sliding block at the lower end part of a left floating post and a sliding block at the lower end part of the right floating post of the floating device respectively correspond to the insides of a left chute and a right chute of a lower clamping tongs support of the lower clamping tongs, the body of the orifice leaving oil cylinder is fixed at the rear end part of the lower clamping tongs support, and a piston rod of the orifice leaving oil cylinder is articulated with a floating frame; and the clasp punching tongs are arranged on a floating plate of the floating device, and clasp turning tongs are arranged on a bottom plate of the clasp punching tongs. The invention adopts an integral structure of clamping, clasp turning, clasp punching / pre-tightening and is suitable for the wrenching and the disassembling of the outer-flat drilling rod.

The invention discloses a public transport travel control method and device, a computer device and a storage medium. The method comprises: obtaining face images of one or more passengers entering a public transportation jurisdiction area, and enabling the face images to comprise face contour characteristics; matching a face image in a preset database, wherein the preset database comprises the collected face image and a set of identity information and account information mapped with the face image; and detecting whether the face image satisfies a preset condition, and when the face image satisfies the preset condition, allowing passage and paying the traffic fee from the account information mapped by the face image. The whole process is simple and convenient, multiple persons can be read atthe same time, the recognition speed and the passing speed of the passengers are increased, the riding time is saved, automatic payment is achieved, and the passengers can ride more conveniently. Byobtaining the identity information of the passengers, the passengers can be monitored conveniently, lawbreakers are prevented from being mixed into public transportation places to be disordered, and the public transportation safety order supervision strength is improved.

The invention discloses a transformer substation or converter station accident handling cloud terminal remote support decision-making method and system. The method comprises the steps of A, starting resource uploading cloud terminal remote sharing at the accident handling moment, B, storing and updating information and resources relative to accident handling in a classified mode by setting up a database, and C, receiving initial handing results of a cloud server in a short message mode. The system comprises a local input unit, the cloud server and a remote output unit. According to the transformer substation or converter station accident handling cloud terminal remote support decision-making method and system, existing accident handling resources in a station are used, the cloud server is set up by developing the accident handling cloud terminal remote output unit support decision-making system, remote sharing is carried out on various resources, such as signals, site situations and various auxiliary analysis and monitoring tools, relative to the accident handling, an accident handling main line is guaranteed to be clear, and timeliness of the accident handling is guaranteed. Equipment inspection is comprehensive, omissions are avoided, an initiative reporting mechanism is formed, repeated reporting and repeated communication are avoided, and accident handling efficiency is improved.

The invention relates to high-torque hydraulic twisting equipment applied to an external flush drill stem and belongs to the field of drilling and exploring machinery. A high-efficiency hydraulic twisting machine capable of staggering an orifice is characterized by comprising a lower tong, an upper tong, and a horizontally moving hydraulic cylinder. A lower end slider of a frame of the upper tong is positioned in an upper tong sliding guide slot on a lower tong frame of the lower tong; a cylinder body of the horizontally moving hydraulic cylinder is fixed on a horizontally moving hydraulic cylinder fixing plate on the lower tong frame of the lower tong; and a piston rod of the horizontally moving hydraulic cylinder is hinged with the lower part of the frame of the upper tong. The twisting machine is applied to mechanical twisting for the external flush drill stem, can realize all technical actions of centering, screwing, floating, punching / pre-tightening, and has the advantages of high torque, small volume, reliable and safe work, and simple operation.

The invention provides a service providing client terminal, a wireless terminal and a binding realizing method. The service providing client terminal comprises a sending module, a judging module and a processing module, wherein the sending module is used for sending authentication information to the wireless terminal; the judging module is used for judging if the wireless terminal is a legal binding object or not according to the response of the wireless terminal to the authentication information; and the processing module is used for providing service to the wireless terminal when the wireless terminal is the legal binding object, otherwise, the service provided for the wireless terminal is limited. The invention can determine the binding between the service providing client terminal and the wireless terminal.

The invention provides a cumquat slicing machine. The cumquat slicing machine comprises a frame, a slicing table, a turntable, a blade and a feeding tube. The slicing table is arranged at the upper end of the frame. The turntable is arrange on the frame in a rotating mode and is located at the lower portion of the slicing table. The turntable is driven by a rotating mechanism to rotate. A feedinghole is formed in the turntable. The cutting blade is arranged on the turntable and is located at the upper portion of the feeding hole. The feeding tube is arranged on the slicing table, and the lower end of the feeding tube penetrates through the slicing table. The blade can pass the lower portion of the feeding tube during rotating with the turntable. In addition, a cutting head face and an elastic safety plate can be arranged on the slicing table, and a conveyor belt and a drying device can be additionally arranged. By means of the cumquat slicing machine, a cumquat can be automatically and quickly performed the slicing uniformly, the handle and tail of the cumquat can be removed before slicing, and in addition, cumquat slices are dehydrated and dried after slicing to ensure the quality of the subsequent production of the cumquat slices.

The invention discloses a wireless accessing building service device and a self-networking method thereof and relates to relay transmission and a processing device of wired / wireless information and a networking method thereof. The wireless accessing building service device is provided with a plurality of wireless terminals, a coding chip, a light-emitting diode (LED) lamp, a keyboard, a wire jumper circuit, a power supply circuit and a wireless communication module are arranged in each wireless terminal. The wireless accessing building service device is further provided with a wired supervisor and a plurality of wired / wireless repeaters, wherein the plurality of wired / wireless repeaters is in parallel connection with an input / output (I / O) interface of the wired supervisor, an I / O interface is arranged on each wired / wireless repeater and correspondingly connected with the I / O interface of the wired supervisor through multicore cables, and a wireless communication module is arranged on each wired supervisor and in wireless connection with wireless communication modules of the adjacent wireless terminals. The wireless accessing building service device is flexible and convenient to apply and low in cost.

The invention relates to an inspecting device for an ophthalmology department, in particular to an adjustable inspecting device for the ophthalmology department. The adjustable inspecting device for the ophthalmology department achieves the technical purposes that the structure is flexible, regulation can be performed, the using requirement of different workers can be met, and burdens of medical workers and patients can be relieved. According to the technical scheme, the adjustable inspecting device for the ophthalmology department comprises a base, a large fixing plate, a first lifting plate,a second lifting plate, a bed plate, a rotating shaft, a worm gear, a worm, a long connecting shaft, a first bearing pedestal, a second bearing pedestal and the like; the large fixing plate is connected to the top of the base. The adjustable inspecting device for the ophthalmology department is flexible in structure, can be adjusted, can meet the using requirements of different workers, can relieve burdens of medical workers and patients, and is capable of performing examination and treatment on patients conveniently, safe and reliable in performance, convenient to use, easy to maintain and low in maintenance cost.

The invention discloses an intelligent power distribution network project auxiliary management system. The system comprises a plan management module used for dividing an intelligent power distribution network project overall plan into a plurality of subprojects according to regions and lines and subdividing the subprojects into item projects, a goods and materials module used for realizing goods and materials management by taking an equipment installation place and an equipment double name as root directories, a test module used for realizing warehouse test plan management and test report management, a relay protection setting value management module used for establishing setting value internet release, execution, acceptance check and archiving processes, an automated point table management module used for establishing point table creation, point table audit, field check, acceptance check and archiving processes, and a field operation module used for field reconnaissance and field reconnaissance recording, wherein related personnel have respective permissions. According to the system, the links of plan, goods and materials, setting value, automated point table, warehouse debugging, test and data management and the like can be automatically coordinated.

The invention discloses a commodity numeral fake prevention method. It includes the following steps that firstly, the uniqueness identity code delegated commodity identity is set dominantly on the commodity; secondly, the commodity fake prevention code is recessively printed or jetted on the opening of the commodity that is deciduousable seal, stay-guy, or card concealed in the package, this can make the commodity identity code be separated from the identity fade prevention code after it is used; finally, when the commodity are verifying, the uniqueness identity code is input, the name, manufactures, producing areas, batch, production dada can be inquired, the uniqueness identity code and fake prevention code of the commodity are input to inquire whether it's genuine or fake. The applying cost of the digital fake prevention method is low. This can satisfy the demand of monitoring physical distribution and change prevention for the manufactures, also can effectively prevent the fake maker from reclaiming the fake prevention code of the commodity package which are not inquired to make fake in batch production.

The invention provides a failure list processing method, comprising: establishing a tree by all failure process part, wherein the tree comprises a root node and at least one sub node; setting the failure process step of each node, and associating each node processing flow; when the root node receives a root failure list or a sub node receives a sub failure list, processing it on the node based on the failure process step, if a sub node assistance is required on one step, sending sub failure list to a corresponding subordinate sub failure list; after the sub node completes all process step, returning list to the superior node sending the sub failure list, wherein the list comprises the process information of the node, if the sub node receives a returning list information of a subordinate node, then sending them together to the superior node; when the superior node receives the returning lists corresponding the sent sub failure list, continuing the following processing step; after the root node completes all processing steps, stopping the failure process.

The invention discloses an efficient and automatic four-station detection and cutting device for chip resistors. The four-station detection and cutting device comprises an automatic control device, a feeding device, a detection device, a cutting device and a collecting device, and further comprises a four-station disc capable of rotating. Four positioning fixtures are evenly and fixedly arranged at the edge of the four-station disc, the feeding device, the detection device, the cutting device and the collecting device are sequentially arranged around the four positioning fixtures in cooperation, the detection device is provided with an industrial detection camera, and the cutting device is provided with a laser machine. By means of the four-station detection and cutting device, undesirable defects can be accurately and efficiently detected, and defective products can be removed in automatic laser cutting; through the four-station disc design, the automation degree is high, and the production efficiency is high; software can automatically generate product quality reports and production records according to the actual product detection condition; the four-station detection and cutting device achieves energy conservation and environmental protection, is low in power consumption and daily maintenance cost and reduces cost.

The invention belongs to the social science field and relates to a pinyin system and the application mode of the system which is used to mark Chinese pronunciation according to Chinese phonetic combining rule and taking foreign language phonetic symbols as basic elements. The pinyin proposal which is provided by the invention realizes accurate marking of Chinese pronunciation and can replaces Chinese pinyin, while the application mode can provide more comprehensive information. The foreign language phonetic symbol type pinyin system and the application mode consist of five parts, i.e. an element table and detailed description, writing mode, spelling rule, a consonant-vowel matching table and application mode. The invention has the advantages of wide application range, accurate spelling, prevention of comprehension confusion, user vigor saving, better teaching effect and convenience for language communication and research, etc.

The invention discloses steel rope processing equipment. Firstly, a steel rope is automatically conveyed by a steel rope feeding device; the front end of the steel rope is clamped by a front-end clamping rotary mechanism, and is rotated to an end part processing punch so as to be in butt joint and riveted with a screw; then, the steel rope is straightened by a steel rope length computing auxiliary mechanism, the length of the steel rope is computed by a counter, the steel rope feeding device and the steel rope length computing auxiliary mechanism stop when the length of the steel rope reaches designed length, and a steel rope cut-off device correspondingly cuts off the steel rope; the tail end of the steel rope is clamped by a tail-end clamping translation mechanism, and is moved to a processing punch on the other end part for being in butt joint and riveted with the screw; the middle part of the steel rope is clamped by a middle butt-joint mechanism, and is moved to a connecting plate processing punch so as to be in butt joint and riveted with a connecting plate, so that the finished product processing is completed; and in the whole processing process, only one person is required to operate and control, so that automatic production is realized, labor cost is reduced, the production efficiency is improved and the yield is increased, and therefore, the steel rope processing equipment is suitable for large-scale processing production.

The invention discloses a network cable storage box, and relates to the technical field of network cable storage. The problem is solved that a crystal head clamp of the network cable is easily damaged. The network cable storage box comprises a box body, a box cover is arranged on the box body, a plurality of winders are placed in the box body, each winder comprises a winding reel, baffles are arranged at both ends of each winding reel, at least one threading hole is formed in each baffle, board gaps are formed in the positions, on the side surfaces of the corresponding threading holes, of thebaffles, and a crystal head cylinder is rotatably connected onto each baffle. The network cable storage box has the advantage that a crystal head of the network cable can be protected.

The invention discloses a gear selecting and shifting device of an automobile transmission. The gear selecting and shifting device of the automobile transmission comprises a gear selecting and shifting shaft and a support, wherein the gear selecting and shifting shaft extends out of one side of a gear shafting box, an interlock baffle plate is arranged on the gear selecting and shifting shaft in a sleeved mode, the support is arranged on one side of the gear shifting box, and the support is provided with a baffle edge. The interlock baffle plate is composed of a locating pate, a first baffle plate and a second baffle plate, wherein the locating plate is provided with a baffle edge groove, the first baffle plate and the second baffle plate are connected at two ends of the locating plate and both provided with bending portions, the two bending portions are oppositely arranged in an aligned mode, and a shifting head gap is formed between the two bending portions. The interlock baffle is connected with the support in a clamping mode through the baffle edge which extends into the baffle edge groove of the locating plate. The gear selecting and shifting shaft is provided with a gear shifting tooth between the first baffle plate and the second baffle plate, wherein the gear shifting tooth is provided with a shifting head portion, the shifting head portion of the gear shifting tooth extends into a shifting block opening, the gear shifting tooth is fixed on the gear selecting and shifting shaft through a bolt, and a locating part which limits axial movement of the interlock baffle is arranged on the gear selecting and shifting shaft. Compared with the prior art, the gear selecting and shifting device of the automobile transmission has functions of interlocking of all gears and five-gear downshift guiding and avoids the problem of gear disorder of the automobile transmission when a driver puts a gear stick into a gear.

The invention discloses a control device for full-automatic steering transmission of a pure light mineral cotton acoustic board at a quarter turn. The control device comprises an original board output section and a fine machining input section perpendicular to the original board output section in transmission direction. The original board output section further comprises a first belt transmission unit, a second belt transmission unit and a PLC (programmable logic controller) control unit which are sequentially arranged, and a first photoelectric switch unit and a second photoelectric switch unit which are properly spaced are parallelly arranged on the first belt transmission unit along the transmission direction. The fine machining input section further comprises a first transmission roller unit and a third belt transmission unit which are sequentially arranged, a third photoelectric switch unit and a push plate chain unit are arranged on the first transmission roller unit, the third photoelectric switch unit is used for detecting whether boards arrive at the first transmission roller unit or not, and the push plate chain unit is used for pushing in-place boards to the third belt transmission unit. The control device realizes automatic steering transmission and avoids disorder and blockage of the boards.

The invention relates to a coiled-tubing safety rewinding and discharging device without an auxiliary hydraulic motor. The technical scheme includes that a tubing discharge power wheel drives a runnerto rotate under the rotation of a spindle, the gear of a tubing discharger is further driven to rotate through a tubing discharge driving chain, and the tubing discharger located outside the front side of a drum to operate; a reverser is connected with a forward and reverse screw to control the forward and reverse screw to rotate forwardly or reversely; a coiled tubing loaded by a coiled-tubing transition wheel is adjusted by the horizontal movement of a power ring. The coiled-tubing safety rewinding and discharging device has the advantages that the auxiliary hydraulic motor is omitted, onlya main hydraulic motor is remained, a hydraulic control line for the auxiliary hydraulic motor is removed, swinging of the hydraulic control line above the drum is avoided, and security hidden trouble brought by the hydraulic control line is eliminated; the operation side and the rotation side of the drum are distinguished, original mess is avoided, and service life of the coiled tubing is prolonged.

A seedling-transplanting machine has a seedling-feeding portion provided at a machine body and a seedling placement platform provided at a side of the seedling-feeding portion. The seedling placement platform is horizontally swingably and vertically movably structured. The seedling-feeding portion and the seedling placement platform that is swung to the seedling-feeding portion side are positioned in a vertical relationship. When the seedling placement platform falls down while it is vertically superposed on the seedling-feeding portion, the seedling placement platform hits the below lying seedling-feeding portion and can damage it. To prevent such damage, limiting means is provided in the seedling-transplanting machine, where the limiting means limits the lowering of the seedling placement platform, swung to a position above the seedling-feeding portion, to a predetermined height.

The invention belongs to the technical field of gearboxes, particularly relates to a gearbox of reverse input agricultural equipment and discloses an automatic gearbox for an electric mini-truck. The automatic gearbox for the electric mini-truck mainly comprises a clutch, a gearbox shell, a first shaft, a reverse idler shaft, a first-speed driven gear, a first-and-reverse gear hub, a reverse driven gear, a second-speed driven gear, a second-and-third speed gear hub, a third-speed driven gear, a second shaft, a first flange plate, a differential assembly, a second flange plate, a movable gear and the like, wherein the first shaft and the second shaft are sequentially arranged inside the gearbox shell of a hollow structure from bottom to top; a reverse driving gear, a first-speed driving gear, a second-speed driving gear and a third-speed driving gear are sequentially and fixedly connected to the portion, in the gearbox shell, of the first shaft from left to right; and the second shaft is sequentially provided with the reverse driven gear, the first-and-reverse gear hub, the first-speed driven gear, a vertical differential connection shaft, the second-speed driven gear, the second-and-third speed gear hub and the third-speed driven gear. According to the automatic gearbox for the electric mini-truck, the gear shifting operation is easy and convenient, the gear shifting force is small, gear distribution and gear speed are reasonable, the safety performance is good, reliability is high, and the service life is long.

The invention belongs to the technical field of transmissions, and specifically relates to a four-wheel drive transmission for agricultural equipment, which consists of an active case and a transfer case. The cut-off input power of the rear axle provided by the transfer case realizes the output of the four-wheel drive. The conversion between the two-wheel drive and the four-wheel drive is easy to operate and can be switched at any time. The column gear structure with low processing difficulty is adopted, which reduces the processing cost and improves the Transmission efficiency, gear design conforms to ergonomics, it is convenient for the operator to shift gears, effectively avoids the phenomenon of disengagement and disordered gears, and provides enough power for agricultural equipment used in complex terrain conditions; it has fewer gears and the gear shifting operation is simple , small shifting force, reasonable gear arrangement and gear speed, good safety performance, high reliability, long service life, four drive power outputs provide enough power for agricultural equipment driving on complex roads.

An urban integral manned transmission system comprises a power supply, a driving device and a transmission mechanism, wherein the transmission mechanism is formed by a main line channel and a branch line channel communicated with the side surface of the main line channel; the branch line channel is higher than the main line channel; the branch line channel is communicated with the main line channel via an inclined slope; the main line channel is formed by four lanes; each lane is provided with a conveyor belt; each conveyor belt is equipped with a plurality of electromagnetic vehicle stalls; a micro single-man vehicle is fixed on the electromagnetic vehicle stall; the branch line channel is formed by an upper path branch line channel, a lower path branch line channel, an upper path area and a lower path area; the upper path area is formed by four accelerating paths arranged side by side; auxiliary channels are arranged outside the main line channel and the branch line channel; bend parts of the main line channel and the branch line channel are respectively provided with an inclined bend path; and each inclined bend is in a transverse shape with a lower internal part and a high external part. Traffic jam and exhaust pollution can be avoided; order pass can be improved; and traffic accidents can be reduced.

The invention relates to a parallel operation SVC coordinated control system based on voltage adjusting rate. The system comprises a plurality of parallelly operated SVC reactive power compensation devices (SVC1, SVC2 ... SVCn), each of which is mounted on a main generator bus of a wind power plant and each comprises an SVC primary device (W1) and a control system (W2). The SVC primary devices (W1) are mounted to the 35kV side, and the control systems (W2) are mounted to the 220kV bus side. The method utilized and applied by the system comprises the steps: (1) detecting whether a coordination control system is running normally according to the data acquisition and analysis of the current grid condition and the status data of each parallel running branch SVC reactive power compensation device, and when the coordination control system is determined to run normally, a coordination control scheme is made, and reactive power compensation tasks are assigned to each SVC reactive power compensation device. According to the tasks, each SVC reactive power compensation device completes its own task to cooperated and complete the power grid requirements. The system can prevent the parallel running devices from falling into a chaotic situation after the coordination control drops out.

The invention discloses a control device of a plate combiner. The number of optoelectronic switches adopted by the control device is reduced and the structure of the control device is simple, and therefore, the phenomenon of plate disorder due to wrong induction of the optoelectronic switches is avoided and stable operation of the plate combiner is guaranteed. The control device comprises an optoelectronic switch, a hold-down timer and a control unit, wherein the optoelectronic switch is mounted above the storage roller way of the plate combiner; the hold-down timer is used for recording the time t0 from the moment that the optoelectronic switch senses one plate to the moment that the belt of the plate combiner starts decelerating, the time t1 from the moment that the optoelectronic switch senses one plate to the moment that the belt of the plate combiner stops moving and the time t2 from the moment that the optoelectronic switch senses one plate to the moment that the plate combiner begins running; the control unit is connected with the optoelectronic switch, the belt and a plate combination unit, respectively; the control unit comprises a first timer which begins timing when the optoelectronic switch senses one plate; when the time of the first timer reaches t0, the control unit controls the belt to decelerate, when the time of the first timer reaches t1, the control unit controls the belt to stop, and when the time of the first timer reaches t2, the control unit controls the plate combination unit to reverse. The invention also provides a control method.

The invention discloses a three-control sawing panel running control system. The three-control sawing panel running control system is capable of enabling a track to stop running when a panel enters an improper track stopping position, a panel disordering phenomenon is avoided, and the stable running of the system is guaranteed. According to the three-control sawing panel running control system, the panel is conveyed on the track, and the track is provided with a small claw for supporting the panel; the three-control sawing panel running control system comprises a photoelectric limit switch and a processing unit, the photoelectric limit switch is located behind the upside of the small claw by 20 centimeters, the photoelectric limit switch inputs on / off signals to the processing unit, and the processing unit controls the track to stop running after delaying appointed time after receiving the off signal.

The invention discloses a plate conveying mechanism based on a building block forming machine. The plate conveying mechanism comprises a rack, a power mechanism, a transmission mechanism and a plate pushing mechanism, wherein the power mechanism comprises a motor and a speed reducer which are positioned below the rack, the transmission mechanism comprises a crank, a connecting rod and a push-pull plate, one end of the crank is connected with an output shaft of the speed reducer, the other end of the crank is connected with the push-pull plate through the connecting rod, the other end of the push-pull plate is fixedly connected with a movable frame, the plate pushing mechanism comprises the movable frame, plate conveying shifting forks and a roller, two sides of the movable frame are provided with the plate conveying shifting forks, the roller is arranged at the lower part of the movable frame, and the movable frame rolls back and forth on a roller guide rail on the rack through the roller. The plate conveying mechanism has the advantages of being stable in plate conveying without the phenomena of plate clamping and disordering.

The invention discloses a control method capable of gradually increasing a topological structure of a charging circuit of a charging pile. The invention relates to a charging pile control method. Themethod comprises a control step and a charging step. In the control step, when the number of charging piles needs to be increased, the charging piles are connected with idle relays in a reserved high-power relay concentration box through reserved wiring pipes, and then the control parts of the charging piles are connected with a regional control box through signal lines. According to the invention, the charging piles can be flexibly added and the charging interface can be reserved. In addition, due to the reserved wiring pipes, the charging piles can only be connected with idle relays in the reserved high-power relay concentration box, so random lap joint of cables or additional arrangement of other high-power relay concentration boxes can be avoided, safety risks are reduced, and the control method is more independent and unique in use and better in stability.