346results about How to "Avoid security issues" patented technology

The invention relates to the technical field of vehicle control, and discloses a vehicle scheduling method and device, a vehicle and a storage medium, and the method comprises the steps: obtaining the driving state information of a vehicle before the vehicle is driven to an intersection without traffic lights, and obtaining the relative positions and predicted driving path information of other vehicles in a current intersection region; in each sampling period, determining a corresponding multi-objective optimization function based on the traffic interaction scene where the vehicle is located; wherein the traffic interaction scene is determined based on the driving state information of the vehicle and the relative positions and predicted driving path information of other vehicles; constructing a vehicle longitudinal dynamic model based on the driving state information of the vehicle, and constructing a model prediction control problem in combination with a multi-objective optimization function and a safety constraint condition; and solving the model prediction control problem to obtain a target control input sequence in a control time domain, and outputting the first control input quantity in the target control input sequence to an execution mechanism of the own vehicle to realize real-time regulation and control of the own vehicle.

The utility model belongs to the technical field of part production equipment, and particularly relates to automobile part assembling and feeding equipment which comprises a rack, a feeding station, a recycling station and a feeding channel are arranged on the rack, a conveying mechanism on the rack can transfer a material tray on a cart to the feeding station, the conveying mechanism can ascend and descend, and the feeding channel is communicated with the recycling station. A lifting claw of the feeding station, a lifting plate of the recycling station and a grabbing mechanism are matched with one another, the closed-loop automatic process of feeding, discharging and recycling of a material tray is achieved, the trolley of the equipment can achieve automatic material transportation through an AGV carrying robot, the labor cost and the labor intensity are reduced, production accidents caused by manual operation errors are avoided, and the production efficiency is improved. And the safety and stability of the production process and the overall production efficiency of automobile part assembly are improved, and powerful support is provided for modern intelligent manufacturing.

The utility model discloses an unmanned aerial vehicle arm quick release device, which relates to the technical field of unmanned aerial vehicles, and comprises a fixed outer tube, a fixed mechanism is arranged at the top of the fixed outer tube, and a pop-up mechanism is arranged on the front surface of the fixed outer tube. A button moves downwards to drive a pressing block to move downwards, when the pressing block moves downwards, a first extrusion rod is driven to move downwards, at the moment, the first extrusion rod moves downwards and extrudes a first notch formed in the inner wall of a rotating rod, the rotating rod is driven to rotate along a rotating shaft, and the protruding rod drives a first fixing block to move upwards through extrusion of a first notch in the other end on the protruding rod; according to the quick unlocking device, the first fixing block releases limiting of the first extrusion block, the purpose of quick unlocking is achieved, a user can disassemble or replace related parts conveniently, the whole process can be completed only through mechanical linkage between specific structures without the help of additional complex tools, and the operation convenience and efficiency are improved.

The invention relates to the field of agricultural product processing equipment, in particular to a pot body overturning structure and an automatic discharging device based on the pot body overturning structure, the pot body overturning structure comprises a machine body and a pot body assembly, and the pot body assembly is rotationally connected to the machine body; the pot body overturning assembly drives the pot body assembly to overturn around the rotation center of the pot body assembly, and the pot body overturning assembly comprises a servo motor, transmission teeth and an arc-shaped gear ring; the controller is arranged on the machine body; the sensor group is used for detecting the position state of the pot body assembly after overturning and resetting, and the controller is used for controlling the pot body overturning assembly to execute overturning and resetting actions according to a signal fed back by the sensor group. After processing is completed, the pot body overturning assembly automatically enables the pot body assembly to conduct overturning discharging, manual participation in discharging operation is not needed, the production efficiency is improved, safety is higher, the discharging process is controllable and low in impact through a buffer block and a buffer plate, and the complete shape and quality of discharged tea leaves are effectively kept.

The utility model belongs to the technical field of camera installation of goods shelves of supermarkets and supermarkets, and discloses a camera fixing device which comprises a fixing assembly, a battery box assembly, a connecting piece and a support assembly, the fixing assembly comprises a fixing plate and a magnet block, the fixing plate is provided with an installation hole, and the magnet block is arranged on the fixing plate and can be attracted to the surface of the goods shelf; the battery box assembly comprises a box body provided with an accommodating cavity and a sealing head, and the sealing head is connected to the end part of the box body and is provided with an inserting hole communicated with the accommodating cavity; the connecting piece comprises a head part and a rod part, the rod part is fixedly connected to the box body, and the head part can penetrate through the first hole part and is prevented from falling off the second hole part; the support assembly comprises a stand column and an installation arm, one end of the stand column is connected to the fixing plate, the other end of the stand column extends into the second channel and is connected to the installation arm, the camera is inserted into the second channel and clamped to the installation arm, and the insertion hole, the first channel and the second channel are sequentially communicated and provided with a cable in a penetrating mode. The battery box is simple to mount, and the battery box component is convenient to dismount.

The application discloses a battery loop control device and belongs to the technical field of batteries. The battery loop control device comprises a processing module, a driving module, a high-voltage loop module and a power module. The processing module is electrically connected with the driving module, the high-voltage loop module is electrically connected with the driving module, and the power module is electrically connected with the driving module. The power module is used for providing electric energy for the driving module. The processing module is used for controlling the driving module to drive the high-voltage loop module, so that the high-voltage loop module is disconnected. In the embodiment of the application, the high-voltage loop module can be disconnected more reliably in the battery loop control device, and the risk and safety problems caused by the failure to disconnect the high-voltage loop module can be avoided.

Embodiments of the present application disclose a data processing method and device, computer equipment, readable storage medium and product. The device vendor firmware data of a device vendor side is acquired, and a key identifier matched with a device to be managed is acquired. The device vendor firmware data is signed based on a target customer key matched with the key identifier, to obtain signed firmware data containing signature information. The signed firmware data is sent to the device vendor side, so that the device vendor side publishes the signed firmware data to obtain published firmware data. If the published firmware data acquired from the device vendor side is verified based on the signature information, the published firmware data is sent to the device to be managed, so that the device to be managed performs firmware management based on the published firmware data. The device vendor side does not contact the target customer key required for signing the device vendor firmware data, and can avoid security problems caused by key leakage, thereby ensuring the security of the device to be managed.

This application discloses a tool setting method and tool setting fixture for a vertical slotting machine, belonging to the technical field of tool setting devices. To address the problems of low tool setting efficiency and poor accuracy in existing vertical slotting machines, the tool setting fixture includes a central support plate. A triangular jaw is installed at the bottom of the central support plate. The tool setting fixture is installed at the inner hole of the workpiece to be processed via the triangular jaw. A support base for fixing a measuring device is installed on the front side of the central support plate. A tool setting sample block is detachably connected to the support base. The operator determines the tool setting position by cooperating with the measuring device and the tool setting sample block. This application is mainly used as a tool setting device for CNC vertical slotting machines.

The utility model discloses a kind of cleaning devices for shock absorber spring surface treatment, it is related to shock absorber spring surface cleaning technical field, including machine case body and filter frame, the filter frame is set in the machine case body inside, and upper end extends out the machine case body, and with the machine case body movable connection.The utility model is cooperated with the use of machine case body, filter frame, partition, water shaking mechanism, auxiliary lifting mechanism, lifting assembly, limiting piece and limiting block, to some extent, it is improved or solved that existing ultrasonic cleaner is washed to shock absorber spring, spring is often disorderly stacked and easily leads to staggered winding, so that cleaning fluid is not fully permeated to gap, affect cleaning effect and subsequent pick up, and spring needs to be salvaged manually after washing, it is complicated and laborious to operate and there is security risk, at the same time, spring surface is left with a large amount of cleaning fluid, which is not easy to remove quickly, affect subsequent drying process, reduce overall cleaning efficiency.

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 utility model discloses an angle-adjustable scrap iron collecting cover for spiral bevel gear machining, and relates to the technical field of gear machining equipment. The gear machining device comprises a machining shaft, a gear workpiece is arranged on one side of the machining shaft, and a first shade is arranged on the surface of the gear workpiece. And a cleaning assembly is arranged on one side of the machining shaft and comprises a first scraping plate arranged in the first shade and a supporting sleeve arranged on the surface of the machining shaft in a sleeving mode, sweeps in the first shade are cleaned through the cleaning assembly, and a sealing assembly is arranged on one side of the machining shaft. Through the design of the cleaning assembly and the sealing assembly, under the synergistic effect of the first scraping plate and the second scraping plate, chippings inside and outside the shade can be efficiently removed, equipment damage and potential safety hazards caused by accumulation of the chippings are avoided, in addition, due to the adjustable angle design of the device, the device can meet different machining requirements, and the machining efficiency is improved. And the machining efficiency and the flexibility of equipment are improved.

The utility model relates to the technical field of regulating valves, in particular to a quick response type gas regulating valve which comprises a regulating box, one side of the regulating box is communicated with a gas inlet pipe, the other side of the regulating box is communicated with a gas outlet pipe, the top of the regulating box is communicated with a connecting cylinder, and the top of the connecting cylinder is communicated with a gas collecting cylinder. A pressure relief assembly used for conducting pressure relief on coal gas in the adjusting box is arranged in the connecting cylinder, the pressure relief assembly comprises an air floating plate and a positioning plate, the air floating plate is connected into the connecting cylinder in a sliding mode, the positioning plate is installed in the bottom of the gas collecting cylinder, and the positioning plate is located on the top of the air floating plate. The gas pressure relief device and the gas pressure relief device are matched with each other, rapid pressure relief and real-time alarm feedback are achieved in the pressure relief process, smoothness and timeliness of gas pressure relief are guaranteed, meanwhile, it is guaranteed that an operator can get an immediate warning when the pressure is abnormal, and equipment failures or other safety problems are prevented.

The utility model relates to an efficient heat dissipation blower shell in the blower field, which comprises an assembly shell, the assembly shell comprises a left piece and a right piece which are assembled through a buckle structure on the inner side of the assembly shell, the upper side of the interior of the assembly shell is provided with a first square cavity, and the top of the assembly shell is provided with a second square cavity; a first square cavity and a second square cavity are formed in the shell body, an assembly plate is inserted into the first square cavity, a cover plate is inserted into the second square cavity, heat dissipation holes are formed in the assembly plate, and heat dissipation fins are welded to the inner side of the assembly plate. And the assembly plate is limited through the limiting corner connector and the limiting shifting piece, so that the heat dissipation area is increased through the heat dissipation fins when the blower is used, heat can be effectively dissipated out, and the heat dissipation efficiency is improved.

The utility model relates to a kind of taking and placing manipulator for counterweight block production line, including the roller line for conveying counterweight block, the roller line end is equipped with baffle, the side at the roller line end is provided with taking and placing mechanism, the taking and placing mechanism includes six-axis mechanical arm of vertical setting, the execution end of the six-axis mechanical arm is vertically provided with suspension plate, and parallel gripper is respectively longitudinally symmetrical fixedly connected in the both ends of suspension plate, two parallel grippers can be grabbed to the corresponding end of counterweight block conveyed to baffle.The taking and placing manipulator of the utility model can replace manual operation, avoid the strength and security risk of artificial handling, reduce the risk of injury.

This application relates to the technical field of stamping and die-cutting equipment, and discloses a quick-change mechanical locking stamping and die-cutting machine, comprising: a stamping and die-cutting machine body, a driving device arranged on the right side of the stamping and die-cutting machine body, a control device arranged on the top of the driving device, a top plate arranged on the top of the stamping and die-cutting machine body, a die-changing mechanism arranged below the top plate, a cleaning mechanism arranged behind the die-changing mechanism, a feeding mechanism arranged to the left of the cleaning mechanism, a first guide roller arranged on the right side of the stamping and die-cutting machine body, and a receiving device arranged to the right of the first guide roller. This invention solves the problems of low feeding accuracy due to large tension fluctuations during the feeding process in existing stamping and die-cutting machines, the time-consuming and labor-intensive manual die-changing process with unreliable locking safety hazards, and the problem that a single negative pressure waste suction method is incomplete in cleaning adhesive debris, affecting product quality and production continuity.

The invention belongs to the field of electrical device installation, and mainly relates to a device and method for intelligently installing an electrical panel cabinet, and the device is characterized in that a plurality of steel beams are installed on the roof of an electrical room in a transversely and longitudinally staggered manner; the mounting vehicle is hung below the steel beam and can move in the direction of the steel beam; the hanging scaffold is connected with the mounting vehicle through a telescopic rope, a moving module, a positioning module and an alarm module are arranged on the hanging scaffold, and moving, mounting and alarming of the mounting vehicle are controlled; the automatic induction lock catch is used for being fixed with a fixing ring on the plate cabinet; the electromagnetic chuck is used for being adsorbed on the top of the plate cabinet; and the stabilizing device and the horizontal device are respectively arranged on the left side and the right side of the hanging scaffold and are used for keeping the hanging scaffold stable. The top space of the electrical room is utilized, installation is more convenient and clear, the installation vehicle automatically searches for positioning points on the ground, the levelness and perpendicularity are intelligently adjusted, the construction safety of workers is guaranteed, the installation quality is improved, and the installation speed is increased.

The application discloses a corner cutting method, device and medium of a laser pipe cutting machine, and the method comprises the following steps: obtaining pipe parameters of a pipe to be cut, generating a cutting track of the pipe to be cut according to the pipe parameters, determining an out-corner point and an in-corner point corresponding to each corner of the pipe to be cut in the cutting track, determining a corner radius and a corner buffer zone corresponding to the corner according to the out-corner point and the in-corner point, judging whether a cutting focal point corresponding to a cutting head reaches the corner or the corner buffer zone in the process of plane cutting, if yes, determining corner cutting process parameters corresponding to the cutting head at the corner and corner buffer zone cutting process parameters corresponding to the corner buffer zone according to plane cutting parameters corresponding to the plane cutting, so that light cutting of the pipe to be cut is performed according to the corner cutting process parameters when the corner is reached, or light cutting of the pipe to be cut is performed according to the corner buffer zone cutting process parameters when the corner buffer zone is reached.

A water interception trench structure and construction method suitable for waterproofing the exterior of potash mine shafts are disclosed. The structure includes a shaft and a shaft wall, and further includes an embedded water storage bag, a water supply pipe, a water storage box, a water outlet pipe, a wall base, and an observation cylinder. The embedded water storage bag is located on the side of the shaft wall and below the soil water level to collect water flowing downwards from the soil layer through the outer wall of the shaft. The water storage box is located inside the wall base. The bottom of the embedded water storage bag has a water outlet hole. One end of the water supply pipe is connected to the water outlet hole and the other end is connected to the water storage box. One end of the water outlet pipe is connected to the water storage box and the other end is connected to the observation cylinder. The observation cylinder is installed on the side of the shaft wall near the shaft. The embedded water storage bag and the shaft wall are integrally cast with concrete, the water storage box and the wall base are integrally cast with concrete, and the wall base and the shaft are integrally cast with concrete. This invention has the advantages of simple construction, accurate monitoring, reusability, and cost savings, and has wide applicability and promotional value in the field of waterproofing potash mine shafts.

The utility model discloses a ridge tile convenient to install lamp strip, first lamp strip mounting portion and second lamp strip mounting portion symmetrical horizontal setting in its inboard along the length direction of first flow guide portion, first lamp strip mounting portion and second lamp strip mounting portion all are equipped with a plurality of mounting holes, and the inboard of first lamp strip mounting portion and second lamp strip mounting portion is connected with second flow guide portion and third flow guide portion respectively, and second flow guide portion and third flow guide portion are inclined downward to the roof of two sides respectively to drain the rainwater received from first flow guide portion to the roof, and the both sides of ridge tile mounting portion are connected with second flow guide portion and third flow guide portion simultaneously to install ridge tile on the roof ridge, so setting, increase the stable shape of ridge tile installation, and the installation of lamp strip does not need to use the nail to punch the hole installation, and installation and disassembly are all simple and quick, reduce the leakage or security hidden danger caused by the ridge tile loosening when replacing the lamp strip, also reduced the adverse effect that sunlight and rainwater bring to the lamp strip, prolong the service life of lamp strip.

This invention relates to the field of tunnel construction technology, and more particularly to a system and method for dynamically optimizing tunnel construction parameters based on geological information from point cloud data. At multiple monitoring time points, point cloud data is collected from the tunnel segment to be constructed, obtaining multiple point cloud datasets. The tunnel segment is divided into multiple construction areas, and multiple regional point cloud datasets are obtained from these datasets. Point cloud change analysis is performed on each regional dataset to obtain multiple point cloud change rates. Based on these regional point cloud datasets, reflection intensity analysis is conducted to obtain multiple reflection intensity coefficients. Combined with the multiple point cloud change rates, geological analysis is performed to obtain the distribution of concealed geological information. Based on this distribution, tunnel construction parameters are dynamically optimized to obtain optimized tunnel construction parameters for tunnel construction. This achieves the technical effect of improving the efficiency and safety of tunnel construction while reducing construction risks and costs.

This invention relates to the field of lithium battery heat dissipation technology, specifically disclosing a heat dissipation device for lithium battery packs, comprising a support plate and a top plate. The support plate and the top plate are arranged longitudinally symmetrically in parallel. Multiple sets of coaxially corresponding mounting holes 1 and 2 are arrayed along the length direction on their opposite end faces. Hollow sealing rings are fixedly installed on the inner walls of both mounting holes 1 and 2. Two symmetrically arranged side plates 1 and 2 are fixedly connected to the two side edges of the support plate and the top plate. The support plate, the top plate, the side plates 1 and 2 together form a cavity structure for accommodating the lithium battery pack and heat dissipation components. Several fan support frames are arrayed along the length direction of the side plates 1 facing the inner side of the cavity, and each of the fan support frames is equipped with a corresponding heat dissipation fan. The air outlet direction of the heat dissipation fan faces the inner cavity. This invention addresses the problem of the single heat dissipation function of lithium batteries.

The invention relates to a membrane disc flexible coupling, and relates to the field of couplings. According to the technical scheme, an inner and outer tooth meshing pair with matched modulus and pressure angle is additionally arranged on the membrane disc and the protective plate, so that an efficient emergency torque transmission structure is constructed; when the coupler works normally, meshing interference of inner teeth and outer teeth can be effectively avoided by means of the reserved transmission gap, and it is ensured that the flexible compensation performance of the membrane disc is not affected; once the membrane disc is damaged, the inner teeth and the outer teeth can be quickly meshed to form a temporary torque transmission path. Under the condition, the operation limitation of a traditional coupler is broken through, torque can be continuously transmitted after the diaphragm disc loses efficacy, precious emergency shutdown or maintenance time is won for equipment such as a large compressor and a generator set, production interruption and safety accidents caused by sudden shutdown of the generator set are fundamentally avoided, and the operation reliability of related equipment is remarkably improved.

This utility model relates to the field of sheet metal stamping technology, and in particular to a sheet metal stamping device with adjustable stamping angle, comprising: a frame on which a lower die is mounted; a stamping mechanism including a first motor, a lead screw, a sliding table, and a stamping assembly cooperating with the lower die, the stamping assembly including a support block and a stamping block rotatably disposed therewith; and an adjustment mechanism for adjusting the angle of the stamping head, including a first adjustment part and a second adjustment part, the first adjustment part being used to drive the support block to rotate. The advantages of this utility model are: through the synergistic action of the first and second adjustment parts, multi-angle precise adjustment of the stamping head can be achieved, meeting the processing requirements of different sheet metal parts, reducing the frequency of die replacement, and improving production efficiency; the use of a motor-driven worm gear and gear transmission mechanism realizes automatic adjustment of the stamping angle, avoiding errors and safety hazards caused by manual adjustment, and improving processing accuracy and ease of operation.

A push rod device for opening and closing mechanical doors, relating to the field of mechanical door and window switches, includes a fixed rod, a hinge rod, a push rod assembly, and a foot pedal assembly. The fixed rod is fixed to the upper part of the inner surface of the door panel. The left end of the hinge rod is hinged to the door frame, and the lower right end of the hinge rod is slidably mounted on the fixed rod via a screw. The diameter of the middle part of the hinge rod is larger than the diameters of the upper and lower ends. The push rod assembly includes a push rod and a fixed block. The fixed block is fixed to the door panel, and the push rod is slidably mounted inside the fixed block. The upper end of the push rod has a top block that corresponds vertically to the screw. The plug on the lower end of the push rod is inserted into the foot pedal assembly. This utility model has a simple structure and is easy to use, avoiding the inconvenience and safety hazards of climbing ladders to open and close doors.

The utility model discloses a power utilization hole automatic closing interlocking safety door which comprises an upper shell, a safety door body, a middle shell and a lower shell, and a through hole is formed in the middle of the upper shell. The safety door is arranged at the through hole, a sliding block is arranged on the outer edge of the safety door, a first inserting hole is formed in the safety door, and a limiting groove is formed in the lower surface, located at the first inserting hole, of the safety door; the middle shell is arranged below the upper shell, a reset bumping post is arranged on the middle shell, the position of the reset bumping post corresponds to the position of the limiting groove, a sliding groove is formed in the edge, located at the through hole, of the upper shell or the middle shell, the shape and the position of the sliding block correspond to the shape and the position of the sliding groove, and the length of the sliding block is smaller than that of the sliding groove; the lower shell is arranged below the middle shell, the lower shell is provided with a fixing device corresponding to the socket, the middle shell and the lower shell are both provided with second jacks, and the first jacks and the second jacks are arranged in an offset mode. Therefore, the transformation difficulty and cost of a traditional socket are reduced.

The application discloses a data center network policy generation method and system based on a policy matrix model, and belongs to the technical field of computer networks.The method comprises the following steps: a policy matrix model containing multiple conditions such as a client / server network area, a disaster recovery mode, a node type and a public network domain name disaster recovery mode is constructed; in response to user input, the network area, the disaster recovery mode and the node type of a source / destination address are automatically analyzed through IPAM and CMDB to form a hit condition vector; the hit condition vector is matched with a matrix rule to obtain an associated policy template list; and data is transmitted through a virtual intermediate table and rendered according to a template mapping to generate a network policy instance that can be issued. The application realizes the automatic generation of multiple types of network policies, accurately adapts to a data center high-availability architecture, significantly improves the policy deployment efficiency and accuracy, and has millisecond-level matching performance.

The utility model relates to a kind of vertical screw material cutting door mechanisms, including first pusher, the discharge pipe of the first pusher acting end, the material pipe being communicated with the discharge pipe, the moving piece of moving material evenly and the sealing piece of sealing or opening the discharge pipe;Discharge groove is opened in the discharge pipe;One end of the material pipe is communicated with the discharge groove, and other end is connected with bunker;The moving piece rotates in the discharge pipe;The bottom of the discharge groove is open in shape;The sealing piece is arranged on the discharge pipe, and the acting end of the sealing piece corresponds with the bottom of the discharge pipe.Solved movable gate by manual operation, its opening degree is controlled depending on operator experience, not only labor intensity is big, and discharge speed and flow are difficult to accurately control, it is extremely easy to lead to powder uneven discharge, affect the precision and efficiency of material packaging.

The application relates to a kind of annular bracket stiff concrete beam column node construction device and construction method, including beam column construction mechanism and construction driving mechanism;Beam column construction mechanism includes multiple construction frames, multiple construction frames are arranged side by side between. First gear and second gear are driven to transmit by motor, so that second gear drives rotating rod and connecting column to rotate, connecting column drives another second gear to rotate by sleeve, so that two second gears and two gear ring assemblies are driven, two gear ring assemblies can drive steel beam column to rotate by locking assembly, the surface of steel beam column can be conveniently laid on steel beam column by workman in multiple faces, avoid subsequent still need to carry out steel beam column hoisting to adjust angle and continue construction, lead to the problem of tedious, so as to improve construction efficiency;Extension assembly is connected by slider and sliding sleeve and construction frame, so that construction frame can be unfolded by extension assembly, so as to extend the support length of steel beam column.

The utility model relates to a magnetic induction control mechanism suitable for an isolation grounding switch. The magnetic induction control mechanism comprises a machine core, a motor, a transmission device, a cam, a magnetic induction accessory and a sensor module, a main shaft and an output shaft are arranged in the movement, the main shaft and the output shaft are in linkage arrangement, one end of the main shaft penetrates through an upper plate of the movement, the cam is fixedly arranged on the main shaft, and one end of the output shaft penetrates through a lower plate of the movement and is suitable for driving a DSE mechanism to perform switching-on or switching-off operation; the motor is fixed to one side of the machine core, the transmission device is installed in the machine core, and the output end of the motor is in transmission connection with the main shaft through the transmission device. The magnetic induction accessory is fixedly arranged on the cam so that the magnetic induction device can rotate along with rotation of the cam, and the sensor module is fixedly arranged on an upper plate of the machine core and arranged adjacent to the magnetic induction accessory so as to induce magnetic field changes of the magnetic induction device to the space where the sensor module is located in the rotation process. Therefore, a corresponding sensor in the sensor module is controlled to be switched on or switched off according to the magnetic field change.