309results about How to "Avoid misuse" patented technology

The embodiment of the invention provides an anti-blocking device and an anti-blocking method for a fuel loading and unloading system of a high-temperature gas cooled reactor, and relates to the field of high-temperature gas cooled reactors. The anti-blocking device of the high-temperature gas cooled reactor fuel loading and unloading system comprises a driving module, a transmission module, an execution module and a control module, the transmission module is connected with the driving module, the execution module is connected with the transmission module, and the transmission module is driven by the driving module to drive the execution module to do linear reciprocating motion. And the control module is connected with the driving module and the execution module at the same time. A cooperative structure of the driving module, the transmission module and the execution module is arranged, a driving signal is converted into linear reciprocating motion of the execution module, mechanical disturbance is applied to a fuel ball stack in a blocked area, the lap joint balance or a bridge junction structure of the fuel ball stack is damaged, and active bridge breaking and jam releasing are achieved. And the jam releasing efficiency and success rate are obviously improved.

The invention relates to the technical field of intelligent ship control, and particularly discloses an area control integration method and system based on an intelligent ship engine room, original operation data and multi-source communication data of equipment in each area of the engine room are collected, a unified real-time state vector is generated through protocol analysis and standardization processing, and a plurality of redundant processing nodes are processed in a unified mode. Synchronizing and verifying state data through a high-speed channel, constructing a global consistent state synchronization set, disassembling composite logic into atomic operation units with state constraints according to an upper-layer instruction and the synchronization set, packaging the atomic operation units into a private instruction sequence bound with the state, executing the instruction sequence by a main node, and executing the state synchronization set by a slave node; seamless switching to a standby node is realized through independent hardware monitoring when a fault occurs, and the standby node continuously executes based on the continuity of a state synchronization set, so that high-reliability uninterrupted operation of area control is realized; according to the method, the problems of instruction semantic distortion and single-point fault risk in heterogeneous equipment integration are solved, and the control accuracy and the intelligent level are improved.

The application discloses a mechanical interlocking plug-in box, which comprises a box body, a box cover, and a first chamber and a second chamber formed by an end sealing plate in the box body; a lock foot mechanism is arranged in the first chamber, and a circuit breaker is arranged in the second chamber; a vertical sliding groove is formed on the surface of a guide movable plate of the lock foot mechanism; a limiting rod is horizontally arranged in the first chamber and is in limiting cooperation with the vertical sliding groove, and one end of the limiting rod extends into the second chamber along the axial direction of the rod to interlock the guide movable plate; a linkage operating mechanism is connected between the limiting rod and the circuit breaker, and is used for driving the limiting rod to cancel the limiting of the guide movable plate and synchronously controlling the circuit breaker to make a breaking action; and an opening and closing mechanism is connected between the linkage operating mechanism and the circuit breaker, and is used for interlocking the breaking state of the circuit breaker and hindering the circuit breaker to make a closing action. The application realizes the interlocking between the lock foot of the plug-in box and the opening and closing mechanism of the plug-in box, and improves the safety protection level.

This invention provides a cup assembly for a food processor, including a cup body, a cup lid, and a processing component disposed within the cup body. It also includes a gearbox, which comprises a movably disposed clutch output shaft. When the clutch output shaft moves to a first position, it drives the processing component to output a first rotational speed; when the clutch output shaft moves to a second position, it drives the processing component to output a second rotational speed. The cup lid is installed in place, maintaining the clutch output shaft in either the first or second position. Furthermore, a food processor with the aforementioned cup assembly is provided. In the first position, the clutch output shaft outputs a first rotational speed to adapt to multi-functional cooking; in the second position, it outputs a second rotational speed to adapt to another multi-functional cooking method requiring a different speed. By changing the position of the clutch output shaft, the processing component can be replaced and the rotational speed can be automatically switched. Moreover, the output speed range is wide and the torque is high, avoiding stalling caused by high processing resistance.

The application provides an interactive control method and device in a game and electronic equipment, in response to a sight opening instruction for a virtual weapon, a second game scene picture determined based on preset magnification parameters of a sight assembled on the virtual weapon is displayed on a graphical user interface, and a volume key is configured to control adjustment of the magnification parameters corresponding to the sight; in response to an adjustment operation of the volume key, the preset magnification parameters corresponding to the sight are adjusted to target magnification parameters, and a third game scene picture determined based on the target magnification parameters is displayed on the graphical user interface. In this way, after the sight is opened, the magnification parameters of the sight can be adjusted by triggering the volume key, so that the operation of adjusting the magnification parameters of the sight is simplified, and the magnification parameter adjustment efficiency is improved. Meanwhile, this method can also avoid misoperation of other controls in the graphical user interface during the sight opening interactive operation, which helps to improve the game experience and game winning rate of players.

The invention relates to the technical field of Internet of Things communication, discloses an Internet of Things multi-Android client state synchronization method, and solves the problems of poor state consistency, high back-end dependence, large delay and insufficient compatibility in the prior art. According to the scheme, the method comprises the steps that after a client completes initialization, MQTT connection with a rear end is established, an MQTT state message pushed by the rear end is monitored, after the message is received, equipment state information is obtained through analysis, local state cache and a UI interface are updated, meanwhile, the client serves as a distribution node, a UDP synchronization message containing the equipment state and the IP of the distribution node is established, and the UDP synchronization message is sent to the client. The UDP synchronization message is broadcasted to the local area network, other clients in the local area network receive the UDP synchronization message and then verify whether the distribution node IP is the client in the local area network, if the verification is passed, the message is analyzed, the state updating timestamp and the local cache timestamp are compared, and the local state cache and the UI interface are updated only when the state updating timestamp is larger.

The utility model discloses a medium-voltage circuit breaker handcart execution unit box with a locking mechanism, which is used on an electric execution mechanism of a medium-voltage circuit breaker handcart and comprises a box body, an execution mechanism and the locking mechanism. The box body is provided with a box door; the executing mechanism comprises a motor and a driving assembly, and the driving assembly is provided with a manual connecting part; the locking mechanism comprises a baffle assembly, a buckling block and a travel switch assembly. According to the utility model, the manual connection part is used for being connected with an external crank to realize manual operation, and the external hanging mechanism of the medium-voltage circuit breaker handcart can be ensured to be normally used in combination with electric driving realized by the motor; the baffle assembly is arranged and used for controlling the travel switch assembly to conduct electrical action and controlling the manual connecting part to conduct closing or opening action. Through the cooperation of the clamping groove and the clamping block, an execution mechanism for opening the box door for misoperation is prevented from violating five-prevention, and the use safety is improved.

The application belongs to the field of cable detection, and discloses a low-voltage cable comprehensive line searching device, which comprises a transmitter and a receiver; the transmitter comprises a power module, a modulation unit, an oscillation unit, a chopping unit, a voltage transformation unit, an isolation protection unit and an output unit; and the receiver comprises a cable identification sensor, a path detection sensor, a line searching signal detection unit, a power supply unit, a filter amplification unit, a power amplifier unit and an acoustic surface output unit. The device integrates cable path testing, cable identification and cable core line searching functions, and is lower in cost, portable and simple to operate, compared with the traditional cable path tester and cable identification instrument which are single-function devices, and can quickly solve the cable line inspection function and identification task in the transformer substation, complete the accurate cable line searching work, improve the work efficiency of the transformer substation cable inspection and replacement, and reduce or even eliminate the safety risk of the transformer substation reconstruction and expansion construction.

The utility model discloses an auxiliary pulling device and a support assembly, and the auxiliary pulling device comprises a base; a first lever pivotally connected to the base along a first axis; the second lever is pivotally connected to the base along a second axis and is linked with the first lever; and the unlocking mechanism is movably arranged on the first lever so as to stop or allow the pivoting of the first lever, the unlocking mechanism is provided with a mistaken touch prevention device, and the mistaken touch prevention device is arranged to keep the unlocking mechanism at a position where the pivoting of the first lever is stopped. The pulling assisting device is compact in structure and capable of preventing misoperation.

The utility model discloses an anti-loosening and anti-falling plugboard, which is characterized in that a plugboard cavity is formed by a main shell and a face shell, the face shell is provided with an adaptive groove, a jack and a tongue hole, and the plugboard cavity is provided with a clamping tongue linked with a power supply push switch. When the button of the power supply push switch is pressed down, the conductive chuck is powered on and the clamping tongue extends out to lock the plug, and when the button rebounds, power is cut off and the clamping tongue retracts. According to the utility model, anti-drop locking and power supply control are integrated into single button operation, so that the design is simplified, and misoperation can be effectively avoided; and low plugging force and high connection reliability are both considered, the problems that a traditional structure is complex in operation and easy to loosen are effectively solved, and the connector is suitable for high-vibration scenes such as electric automobiles.

The application discloses a relay driving circuit, comprising a power module, a starting switch, a main control module and a switch module, the power module is used for providing stable working voltage for the system, the starting switch is used for outputting a starting signal of the relay, a control signal input end of the main control module is connected with the starting switch, the main control module is used for outputting a corresponding pulse driving signal according to the starting signal, an input end of the switch module is connected with a control signal output end of the main control module, an output end of the switch module is electrically connected with the relay, and the switch module is used for driving the relay to work according to the pulse driving signal. The switch module of the application can drive the relay to work according to the pulse driving signal, compared with the traditional relay directly driven by the switch, when the program of the main control module runs out of control or crashes, the pulse driving signal will stop outputting, thereby stopping driving the relay and making the load stop working, and further preventing the household appliance from burning or the occurrence of safety accidents.

The invention relates to the field of underground cavern group blasting construction, and particularly discloses an underground cavern group blasting construction working face dust control intelligent spraying method which comprises the steps that acoustic information and scene sequence images of a construction site are collected, and working face blasting construction procedures are obtained; after it is confirmed that blasting is completed on the construction site, real-time dust concentration space distribution information of the construction working face is obtained according to the scene sequence image; a spraying working position is determined according to the dust concentration space distribution information, and a navigation positioning system is used for autonomous navigation to reach the spraying working position; spraying parameters are determined according to the dust concentration space distribution information, and spraying work is started; the spraying effect is evaluated according to the real-time dust concentration space distribution information, and spraying work is stopped after the dust concentration control condition reaches the standard. The invention further provides a corresponding device. According to the method and the device, the dust concentration can be obtained in real time, and intelligent rapid dust falling autonomous operation can be implemented.

The utility model discloses a kind of lip gloss aluminium pipe burr and inner cover assembly anti-burr device, comprising: support frame, it includes base and support arm, profiled locating seat is provided on base, inner cover is inserted in profiled locating seat, aluminium pipe burr direction vertical upward on inner cover;Shaping module, it includes drive cylinder and shaping seat, drive cylinder is fixedly installed on support arm, the piston rod of drive cylinder is connected shaping seat after passing through support arm;Wherein, shaping seat includes seat body and inner plug, inner plug is detachably installed in seat body, shaping cover is provided on inner plug, shaping cover position is correspondingly set on aluminium pipe burr upper side.The utility model compared with prior art, solve the problem that burr appears in the process of lip gloss upper cover assembly, influence lip brush subsequent use.

This invention provides a remote smart lock control method based on a cloud platform, relating to the field of artificial intelligence technology. The method includes: the cloud platform sending a sound wave signal transmission command to the target smart lock, triggering the smart lock to send multi-band sound wave signals to preset auxiliary signal enhancement device deployment locations A and B; the cloud platform receiving sound wave feedback signals from locations A and B, calculating the final communication path based on signal propagation delay, frequency band interference intensity, and attenuation parameters, combined with real-time signal quality indicators reported by the remote communication module; and dynamically encrypting the command and sending it to the remote communication module through the final communication path. This invention dynamically calculates the optimal transmission path, breaking through the limitations of traditional single-channel transmission. Even in complex electromagnetic environments or obstacle-blocked scenarios, it can still ensure reliable transmission of control commands and reduce communication interruption rates.

This utility model provides a valve stem concealed ball valve, including a ball valve body. The ball valve body includes: a valve body with several equidistant mating sections arranged circumferentially at its tail end, each mating section having a threaded hole at its center, the axis of the threaded holes being parallel to the axis of the inner hole of the valve body; the mating sections can adjust the installation direction of the ball valve as needed to avoid positional interference; a ball, rotatably disposed in the inner hole of the valve body; a valve stem, rotatably connected to the valve body, one end of which is connected to the ball, and the other end of which protrudes from the valve body; and a valve cap, detachably connected to the valve body, which can cover the other end of the valve stem; the valve cap conceals the exposed part of the valve stem, protecting the ball valve from accidental opening and closing and preventing misoperation of the valve stem.

This invention relates to an improved method for the resin grinding wheel shaping step in the chamfering process of 12-inch silicon wafers, belonging to the field of silicon wafer processing technology. The method includes the following steps: Step 1: Groove preparation. First, determine the height of the base peripheral grinding wheel and the notch grinding wheel. Place the silicon wafer on a grinding table for rough and fine grinding of the grooves. Step 2: Baffle test grinding. First, perform rough peripheral grinding and notch grinding on the baffle. If the [upper width - lower width] > 20 μm, proceed to the correction interface to ensure that [upper width - lower width] ≤ 20 μm, and then perform fine peripheral grinding and notch grinding again. The center of the peripheral grinding wheel and the notch grinding wheel is found through the baffle test grinding process. Step 3: Resin grinding wheel shaping. Step 4: The shaped resin grinding wheel is test-ground using a grinding program, followed by test-grounding of the baffle. After the test grinding meets the requirements, silicon wafer chamfering processing is carried out. This systematizes the operation steps, avoiding overly cumbersome procedures that could lead to errors and waste of manpower, resources, and time.

The invention discloses a method and a system for generating SQL (Structured Query Language) statements in a template configuration manner, and belongs to the technical field of database access. The method comprises the following steps: firstly, solidifying four tuples of stmttype, field,: tbl and where on a template side by using XML / JSON, locking one of four styles of% s,-, {} and: name at one time by using a placeholder style arbiter, and generating a golden sequence vector after DOM / JSON double analysis and regular global scanning; then, parameters are obtained on the data side through db / file / API three-state routing, a single quotation is automatically added to string / data class values through a silicon-level quotation hardening circuit, number class values are directly transmitted in an unvarnished mode, and object-by-object fusing check is conducted through a key integrity sniffer in a batch scene; and finally, performing mmap original text re-loading on each record by a template hot loading isolator on a generation side, and realizing page-level isolation and zero-residue output by combining SIMD replacement and cache line scouring. The method is suitable for high-security, high-concurrency and high-real-time scenes such as cloud, edges and production lines.

This utility model discloses a lockable sliding switch, comprising: an upper shell and a lower shell, the upper shell and the lower shell being connected to form a closed outer shell structure; a rotary lock seat, rotatably disposed within the upper shell and the lower shell; and a fixed lock seat, fixedly disposed within the upper shell and the lower shell, forming a relative rotational relationship with the rotary lock seat; the rotary lock seat is provided with a first locking plate, and the fixed lock seat is provided with a second locking plate; when the rotary lock seat is rotated to the locked position, the first locking plate and the second locking plate abut face to face, blocking the rotation of the rotary lock seat; the rotary lock seat is provided with a lock hole, and when the rotary lock seat is in the locked position, an external lock can be inserted into the lock hole and locked. This lockable sliding switch has the characteristics of double locking to prevent misoperation, stable gear switching, and reliable contact.

The utility model discloses an integrated braking and parking device which comprises a pedal plate and a braking assembly in transmission connection with the pedal plate, and further comprises a parking plate in transmission connection with the pedal plate and provided with a braking groove of a one-way limiting structure. The parking pawl is connected with the fixing component through an elastic piece, and the elastic piece is used for forcing the parking pawl to be meshed with the braking groove so as to prevent the parking plate from returning; an energy storage element is arranged between the parking pin shaft and the parking pawl, and the energy storage element stores or releases energy when the distance between the parking pawl and the parking pin shaft changes; the guide structure is fixed on the parking plate and comprises a separation limiting part and a guide surface; braking, parking and unlocking are achieved through different strokes of the pedal. The vehicle brake system has the advantages that the problems that braking and parking of an existing vehicle brake system need to be controlled by two parts, and operability is poor can be effectively solved. The operation process of the driver is greatly simplified, the operation complexity is reduced, and the convenience in the driving process is improved.

The utility model provides an overhead passenger conveying device anti-reverse protection device. Overhead passenger conveying device anti-reverse protection device includes first support frame, one side of first support frame rotatory installation has the rope wheel of holding, the rope wheel of holding is fixedly installed with the connecting rod on the side away from first support frame, the connecting rod is installed with the rotating disc on the side away from the rope wheel of holding, the rotating disc is fixedly installed with the support rod, the support rod is fixedly installed with the iron block, first support frame is fixedly installed with the mounting plate on the side away from the rope wheel of holding, the mounting plate is fixedly installed with one end of L type rod on the side close to first support frame. The utility model provides an overhead passenger conveying device anti-reverse protection device has can under the premise of not influencing main system operation the advantage that significantly enhances the real -time nature and security of anti-reverse protection.

This application relates to the field of automated storage equipment technology, specifically to a storage bin with an electrically operated lid and its control method. The method includes: receiving an operation command for a target-numbered test tube; locating the target-numbered test tube and its corresponding electrically operated lid mechanism based on identification information, and obtaining the current status information of the target-numbered test tube; performing a logical verification between the operation type and the current status information; if the verification passes, generating a drive command; performing an execution condition compliance check before executing the drive command; when the execution condition compliance check passes, executing the lid-opening action corresponding to the operation type; and confirming the completion of the action and updating the system status record of the target-numbered test tube based on the execution feedback from the electrically operated lid mechanism. This application, through a combination of status verification, process recording, and feedback confirmation, achieves automation, safety, and traceability of test tube lid-opening operations, improving the accuracy and reliability of sample management.

The utility model relates to a kind of multifunctional footrest, including pedal, the upper part of the pedal is equipped with foot pad area and switch area, the foot switch for controlling laser output and closing is equipped in the switch area, one side or both sides of the footrest is equipped with micro trigger device for adjusting laser attribute.The utility model relates to a kind of multifunctional footrest including pedal, the pedal is divided into foot pad area for supporting instep or heel and switch area for installing multiple switches, the foot switch for controlling laser output and closing is equipped in the switch area, one side or both sides of the foot switch is equipped with micro trigger device for adjusting laser attribute, this footrest structure design is simple, control function is more, and the position of multiple switches is reasonably divided, can liberate the hands of doctor to the greatest extent, and the parameter of quick and accurate adjustment is reasonably utilized by foot.

The utility model discloses a remote switch system for a cable branch box, and relates to the technical field of power equipment. The problems that an existing system is insufficient in anti-interference capacity, unstable in wireless signal and high in power supply dependence are solved. In the scheme, the control module integrates the dual-core processor and the nonvolatile storage unit, and high-frequency noise conduction is blocked through a four-stage isolation driving circuit; the communication module is fused with a power line carrier and a dual-frequency wireless transceiver circuit to realize signal blind area automatic switching and multi-channel complementary transmission; the multi-source power supply module adopts a main power supply, a standby power supply and a photovoltaic unit to cooperatively supply power, and combines a bidirectional DC / DC module to dynamically deploy energy; the split type execution module doubly guarantees the reliability of the switch based on a magnetic latching relay and a redundant drive circuit; according to the scheme, the anti-interference capability in a complex electromagnetic environment is remarkably improved, control failure caused by signal disconnection is effectively avoided, and the continuous operation capability in a power-off scene is ensured through a multi-source energy supply mechanism.

The utility model discloses an automobile engine teaching rack, and specifically relates to the teaching rack technology field, the automobile engine teaching rack comprises a support frame, an engine fixing rack used for placing an automobile engine is arranged in the support frame, the engine fixing rack is connected with the support frame through a connecting assembly, the connecting assembly comprises two connecting plates, and the connecting plates are connected with the support frame. The two connecting plates are connected with the supporting frame and the engine fixing frame through bolts, and a detection assembly used for detecting an automobile engine is arranged at the top end of the supporting frame. According to the utility model, the engine fixing function and the circuit system detection function are integrated, and the teaching quality and efficiency are improved.

The utility model belongs to the technical field of circuit board tin removal and tin soldering equipment, and particularly relates to a heating table which comprises a shell, a heat conduction panel, a first clamping block and a second clamping block, the upper end of the shell is provided with a mounting hole, a heating disc is arranged at the mounting hole, the heat conduction panel is arranged above the heating disc, and the first clamping block and the second clamping block are arranged on the shell. The upper end of the heat conduction panel is provided with a heating position corresponding to the heating disc, heat released by the heating disc can be transmitted to the heating position, the first clamping block and the second clamping block are oppositely arranged on the two sides of the heating position, and the first clamping block can move towards the direction of the second clamping block so that a circuit board on the heating position can abut against the second clamping block. According to the utility model, the circuit board can be in a horizontal state through the arrangement of the step, all positions of the circuit board can be uniformly heated, and the circuit board can be kept stable and the operation accuracy is improved when the electronic component is disassembled or welded and the like through the mode that the first clamping block is arranged to move towards the direction of the second clamping block.

This utility model provides a locking tag device for a manual directional valve, relating to the field of manual directional valve technology. It includes a directional valve body and a support plate fixedly mounted on the directional valve body. Three operating levers are rotatably connected to the directional valve body. Through holes are provided on the support plate, and a handle passes through these holes and connects to a sliding plate. The handle is used to move the sliding plate so that the stop holes on the support plate and the sliding plate coincide or separate. This utility model has a reasonable and simple structure, and is quick and accurate to operate. When operating the manual directional valve, moving the handle moves the sliding plate so that the sliding plate and the stop holes on the support plate are misaligned, thereby locking the operating levers. Therefore, this locking tag device improves upon the original operating handle device, effectively eliminating safety hazards during operation, avoiding misoperation during use, and improving operational safety.

The utility model discloses a kind of circuit breaker overload protection mechanism, it is related to circuit breaker technical field, specifically for the right end fixed connection of bimetallic strip has soft wire, the upper surface fixed connection of soft wire has contact plate, the right upper side of contact plate is installed with center lever, the lower fixed connection of bimetallic strip close to left end has load wire, the left end fixed connection of bimetallic strip has fine adjustment screw block, the lower installation of bimetallic strip right end has Z-shaped metal sheet.The circuit breaker overload protection mechanism is cooperatively arranged by bimetallic strip, Z-shaped metal sheet, resistance and alarm wire, when bimetallic strip is bent due to overload in the process of using in circuit breaker, Z-shaped metal sheet will be touched preferentially, current output is achieved through resistance and alarm wire, by connecting alarm wire into alarm or emergency device, thereby played the role of alarming or enabling protection device before overload tripping occurs.

The application discloses a device for detecting blank deviation at a heating furnace door, comprising a first distance measuring mechanism for obtaining a first distance value of the blank and a second distance measuring mechanism for obtaining a second distance value of the blank, the first distance measuring mechanism and the second distance measuring mechanism being connected with a control system, the control system comprising a judging unit configured to judge whether the blank deviates according to the difference between the first distance value and the second distance value. The device for detecting blank deviation at a heating furnace door does not need to be directly installed on the furnace body, has a better temperature environment, is stable in work, can timely find the deviated blank, notify the operator to intervene, avoid misoperation under automatic operation, and improve work efficiency. The application discloses a method for detecting blank deviation at a heating furnace door.

The utility model provides a kind of tubular motor mechanical resistance rebound control circuit, including circuit board and motor, and is equipped with main control module, power module, motor drive module on circuit board, motor drive module includes motor interface, and the middle shaft of motor is equipped with bump block, and microswitch matched with bump block is set on circuit board, and the trigger signal of microswitch is output by motor interface, and power module is for motor, main control module and motor drive module power supply, still include resistance detection filter circuit, resistance detection filter circuit includes diode D1 and photoelectric coupler OP1, the positive pole of diode D1 is connected with the trigger signal output by motor interface, and the negative pole of diode D1 is connected with the input end of photoelectric coupler OP1 with RC filter circuit, the collector of the output end of photoelectric coupler OP1 is connected with the output end of power module by pull-up resistor R4, the collector of the output end of photoelectric coupler OP1 is connected with the signal input end of main control module, and the emitter of the output end of photoelectric coupler OP1 is grounded.

The invention provides a grid-connected and off-grid control method and a circuit breaker, and relates to the technical field of power electronics. The method comprises the steps of obtaining a synchronization deviation value of a power grid side and a load side based on a power grid side voltage signal and a load side voltage signal, if the synchronization deviation value is smaller than a grid-connected threshold value, generating a grid-connected switching-on instruction, and sending the grid-connected switching-on instruction to an execution unit, so that the execution unit drives a gear assembly to move to a switching-on position, after the gear assembly moves to the closing position, the execution unit drives the gear assembly to move to the unlocking position, and after the gear assembly moves to the unlocking position, opening operation is allowed to be manually executed through the handle assembly; if it is detected that the power grid side voltage signal is abnormal, the tripping mechanism is controlled to execute an opening action, the gear assembly is driven to move to the locking position after the gear assembly moves to the opening position, the circuit breaker is allowed to receive and execute a remote closing instruction after the gear assembly moves to the locking position, and the stability and reliability of the grid-connected and off-grid mode switching process are ensured.