858results about How to "Avoid misuse" patented technology

The invention relates to the technical field of force feedback handles, in particular to a remote surgical robot control system based on a force feedback handle and a control method thereof. The method comprises the following steps: carrying out multi-dimensional force data acquisition on an end effector of the surgical robot, and carrying out contact force size, direction and time sequence feature extraction to obtain multi-dimensional force feature data; performing surgical operation safety baseline analysis according to the multi-dimensional force feature data to generate surgical operation safety baseline data; performing dynamic force feedback threshold calculation according to the surgical safety operation baseline data to obtain force feedback threshold range data; and performing adaptive compression processing on different force feedback signals according to the force feedback threshold range data to obtain dynamic force feedback control parameters. Through real-time control instruction optimization and a closed-loop feedback strategy, the system can quickly respond to an operation intention, early warning is carried out on potential risks, and it is ensured that the operation process is safer and more reliable.

The invention provides an airway navigation system and method based on a bronchoscope view, and the system comprises a reconstruction module which obtains a bronchial tree 3D mask through CT image reconstruction; the model building module is used for obtaining a three-dimensional virtual map model comprising a 3D bronchial tree according to the 3D mask of the bronchial tree; the path extraction module is used for extracting all possible navigation paths from the bronchus entrance to the target part based on the 3D bronchus tree; the path selection module is used for selecting one navigation path as a target navigation path; the navigation module is used for guiding the bronchoscope to move along a target navigation path in the three-dimensional virtual map model based on a visual guide path; and the navigation auxiliary module maps the identified real-time part corresponding to the bronchoscope to the 3D bronchial tree for matching so as to realize dynamic synchronization of the real-time part corresponding to the bronchoscope and the target navigation path. According to the invention, reliable and convenient navigation in a complex airway network can be realized, misoperation is effectively avoided, time is saved, and operation difficulty is reduced.

The invention provides an intelligent laboratory man-machine interaction control method and system, and relates to the technical field of control, and the method comprises the steps: collecting experimenter and equipment images through a visual collection device, recognizing equipment operation state parameters based on a deep learning model through a processing server, including a switch state, an indicating lamp state, a display screen state and a fault indication state, and transmitting the state parameters to a server; and comparing the identification result with a preset parameter to generate an evaluation result. And the processing server receives the user voice instruction, extracts the content of the control instruction, and determines the target equipment and the control action. And verifying the legality of the instruction and judging whether an execution condition is met by combining an equipment state evaluation result. And a cooperative control strategy is generated according to the control instruction and the evaluation result, the cooperative control strategy comprises a control time sequence, parameters and a data interaction mode, and the control instruction is sent through the field bus network to realize multi-device cooperative control. According to the invention, intelligent management and control of laboratory equipment are realized, and the experiment efficiency and safety are improved.

The invention provides an automatic machining system for integrated die-casting parts and a control method. The system comprises a plurality of numerical control machining centers, a conveying robot, a robot ground rail and an intelligent main control system. The numerical control machining center is used for executing different machining procedures of the integrated die-casting part, the conveying robot supports walking through the robot ground rail to complete automatic feeding and discharging, and the intelligent main control system controls the numerical control machining center and the conveying robot to work cooperatively. According to the control method, the technological process is determined, the technological process is decomposed into sub-procedures, the sub-procedures are distributed to different numerical control machining centers, a target scheme is generated based on sub-procedure priority scores and technological process dynamic planning, and the transport robot is controlled to conduct feeding, discharging and cleaning operation. According to the method, simultaneous production of parts in different procedures is achieved, and the problem that in the prior art, an automatic feeding and discharging system and method for different parts in different procedures are lacked is solved.

The invention relates to the technical field of equipment control, in particular to a self-adaptive switching method and system of a current transformer. The method comprises the following steps: collecting primary side parameters and secondary side parameters of a current transformer to obtain primary side collection parameters of the current transformer and secondary side collection parameters of the current transformer; performing current transformer state segmentation initialization according to the current transformer primary side acquisition parameters and the current transformer secondary side acquisition parameters so as to generate a current transformer operation state classification result; switching result judgment is conducted on the current transformers according to the current transformer operation state classification result, and when the current transformer operation state classification result is a current transformer critical state section, parallel buffering is conducted on the current transformers, and critical current transformer switching data are generated. According to the invention, through accurate state classification, a dynamic switching mechanism, time sequence optimization and visual display, the switching sensitivity and stability of the current transformer are improved.

The invention discloses a method for detecting an external load of an automobile emergency starting power supply, and relates to the technical field of automobile emergency starting, in the step S2, after an output circuit is closed, a system monitors dynamic current and load state changes, extracts related transmission data and calculates an abnormal coefficient, and once the abnormal coefficient exceeds a preset abnormal threshold value, the system is started; and the system sends a start stopping instruction in time, so that excessive loss of a storage battery or a starting power supply is further avoided, and the safety of equipment and a vehicle is effectively guaranteed. And S3 and S4, constructing a starting result recognition model by using the change coefficient and the abnormal coefficient, and fitting a judgment index after performing linear normalization processing on the data by virtue of a deep learning technology. By comparing the judgment index Pdzs with the qualified threshold value, the system can intelligently judge whether starting is successful or not, automatically control power output, avoid excessive current output and prolong the service life of equipment.

The invention relates to the technical field of education course playing, in particular to a multimedia education course resource playing method and device, and the method comprises the steps: reading student identity data based on an electronic student identity card, carrying out the identity verification, and obtaining an access authorization certificate; calling multimedia education course resources associated with student courses from the server, and adjusting playing parameters according to current course requirements of students to obtain personalized playing configuration; after the personalized playing configuration is checked before playing and the content is verified to be appropriate, based on the playing ready state, a multimedia playing process is executed, the playing quality is adjusted in real time, and an operation request of a student is responded to obtain an interactive monitoring record; and based on the interaction monitoring record, evaluating the watching behavior and the interaction quality of the student, optimizing the education course recommendation content in the future time period, and obtaining an education course recommendation content updating result. According to the invention, personalized multimedia education course resource recommendation can be provided according to the specific academic state of the student, so that the education course resource allocation is more accurate.

The invention discloses a thermal power generating unit high-pressure heater fault load reduction control method, which comprises the following steps of: 1, judging whether a thermal power generating unit generates high-pressure heater fault splitting or not, and if so, entering a step 2; 2, judging whether a triggering condition of a unit load reduction program is met or not, if yes, sending a unit rapid load reduction instruction, and entering a step 3; 4, whether the auxiliary machine fault load reduction program is completed or not is judged, if the auxiliary machine fault load reduction program is completed, the unit enters a stable transition state, and if the auxiliary machine fault load reduction program is completed, the third step is executed again. The method is reasonable in design, key actions of thermal power generating unit high-pressure heater auxiliary machine fault load reduction are defined and set in control logic, automatic control of the thermal power generating unit high-pressure heater auxiliary machine fault load reduction process has practical operability, intelligent control of the load reduction process is achieved, and the reliability of the load reduction process is improved. And the stability and the safety of the thermal power generating unit after the high-pressure heater is split are ensured.

The invention relates to the technical field of man-machine interaction, in particular to a gesture-based instrument operation method, which comprises the following steps of: capturing gesture information of an operator in real time through gesture acquisition equipment; the gesture recognition module receives gesture information captured by the gesture acquisition equipment and converts the gesture information into a preset instruction signal; the medical instrument control module receives the instruction signal and executes corresponding operation based on the instruction signal, the method is based on a medical instrument gesture model, the model is integrated to acquisition equipment to realize edge calculation, and the gesture of wearing gloves is acquired in real time; instruction conversion is carried out based on gesture acquisition equipment, and the gesture of wearing the glove is converted into an instrument instruction; the collection device is driven based on the instrument state, it is ensured that the instrument enters the working state and is driven, system resource waste is avoided, it is ensured that the instrument and the collection device are high in availability, the glove wearing gesture is efficiently and accurately recognized, traditional input equipment does not need to be used, and operation convenience and man-machine interaction efficiency are improved.

The invention discloses a visual guide type tracheal intubation mirror system, relates to the technical field of guide type tracheal intubation mirrors, and aims to solve the problem of poor treatment effect of tracheal intubation. The constructed environment model not only comprises the diameter and the bending degree of the trachea, but also considers the surrounding tissue structure, so that a doctor can more comprehensively know the trachea and the surrounding environment of the trachea so as to make a more accurate decision, and the depth and angle information in the video image data is combined, so that the visual effect is improved. The real-time three-dimensional attitude of the intubation lens is estimated, the perception precision of the position and attitude of the intubation lens is improved, misoperation can be avoided, the structured light scanning method is combined with depth information and image coordinates for reconstruction, and compared with a traditional method, a three-dimensional model can be generated more quickly, the data quality of video data can be monitored in real time, and the real-time three-dimensional attitude of the intubation lens can be monitored more accurately. And the accuracy and stability of data are ensured. Therefore, data quality problems can be found and solved in time, and errors in subsequent diagnosis or treatment are avoided.

The invention relates to the technical field of cable safety, in particular to a cable repairing method based on hierarchical path planning and related equipment, and the method comprises the steps: obtaining an original point cloud of a target cable, carrying out the preprocessing of the original point cloud, and obtaining a damaged region point cloud; according to the method, the damaged area point cloud is subjected to voxelization processing, the damaged area point cloud subjected to voxelization processing is subjected to internal voxel filling, the zigzag path of the target cable is generated according to the voxelization damaged point cloud, the target cable is repaired based on the zigzag path, the method can adapt to the complex form of the damaged area, and the repairing integrity and the repairing quality are improved.

The invention provides an isolation circuit breaker interlocking structure and a high-voltage switch cabinet. The interlocking structure comprises a connecting rod mechanism, a linkage plate, a middle door lock catch, a middle door limiting rod, a handcart limiting rod and a limiting baffle. The linkage plate, the middle door limiting rod, the handcart limiting rod and the limiting baffle are connected through the linkage mechanism, and the linkage plate is linked with the working state of the isolation circuit breaker to drive the middle door limiting rod, the handcart limiting rod and the limiting baffle to correspondingly achieve interlocking and unlocking of the middle door, the handcart and the grounding switch. According to the interlocking structure, due to the fact that various interlocks are tightly connected, the interlocking structure is simple and compact in structure, convenient to operate and safer and more reliable in performance.

The invention discloses a multi-point grounding current limiting device, and relates to the technical field of power transmission line construction, the multi-point grounding current limiting device comprises a placement frame and further comprises a protection assembly, a grounding rod is fixedly installed at the bottom of the placement frame, a placement plate is fixedly installed on the inner wall of the placement frame, and a placement rod is fixedly installed at the top of the placement plate; lifting equipment is arranged on the circumferential surface of the placement rod, a signal receiver is fixedly mounted at the top of the lifting equipment, a current limiting assembly is arranged at the top of the placement plate, a fusing assembly is arranged at the top of the placement plate, a grounding connecting wire is arranged between the fusing assembly and the current limiting assembly, and a limiting frame is fixedly mounted at the top of the placement plate. According to the grounding current limiting device, the L-shaped plate moves downwards to drive the limiting plate to move downwards, the limiting plate moves downwards to make contact with the grounding connecting wire and extrude and fix the grounding connecting wire, the optimal state of the grounding connecting wire can be kept by avoiding bending or pulling, low grounding resistance is ensured, and therefore the efficiency and safety of the grounding current limiting device are improved.

The invention relates to the field of charging pile relay control, in particular to a relay control method for a charging pile. An output signal of the chip U1 and a control signal sent by a controller are operated through an OR gate circuit composed of diodes, as long as one of the two signals is high, a control signal of a third intermediate relay K10 is in a high level, the third intermediate relay K10 acts, a relay for controlling power scheduling cannot be closed, and power scheduling cannot be carried out; only when the two input signals of the chip U1 are both low, the output is low level, and the relay for dispatching the power can be closed, that is, only when one trolley is charged and the dispatching power is required, the relay for dispatching the power is allowed to be closed. Therefore, the accuracy and the reliability of the action of the relay are ensured from two aspects of signal control and relay connection.

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 embodiment of the invention provides a control method of a vehicle-mounted game, a vehicle, user equipment and a storage medium, relates to the technical field of vehicle-mounted games, and is used for improving the safety of running the vehicle-mounted game by the vehicle. The control method of the vehicle-mounted game comprises the steps of receiving a starting instruction of a game mode of the vehicle, and responding to the starting instruction of the game mode. Acquiring state information of the vehicle, and controlling the vehicle to enter a game mode under the condition that the state information indicates that the vehicle is in a non-driving state.

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 invention relates to the technical field of medical instruments, and discloses gastrointestinal surgery anus dilatation equipment convenient to disassemble and clean, a first anus dilatation sheet and a second anus dilatation sheet are arranged above a base, a window is formed in the surface of the first anus dilatation sheet, and sliding seat bodies are symmetrically and slidably connected to the inner wall of the base; the sliding seat body comprises a first sliding seat and a second sliding seat, a threaded telescopic rod is fixedly connected to the center of the outer wall of the sliding seat body, a tooth groove is formed in the lower surface of the rotating ring, the tooth end of the tooth ring is connected with the tooth groove in a meshed mode, and a fixing assembly is arranged in the base. The fixing assembly is used for fixing the first anal dilatation sheet and the second anal dilatation sheet. The first anal dilatation sheet and the second anal dilatation sheet are combined and inserted into the anus, damage to the anus is reduced while the first anal dilatation sheet and the second anal dilatation sheet conveniently enter the anus, the first anal dilatation sheet and the second anal dilatation sheet can gradually slide and expand by rotating the rotating ring, and therefore the anal sphincter of a patient gradually adapts to the expanded amplitude.

A high-compatibility power supply controller comprises a signal identification assembly, a switch driver and a switch assembly. The signal recognition assembly comprises a high-frequency signal recognizer, and the high-frequency signal recognizer receives a first input signal. And the switch driver is connected with the high-frequency signal recognizer. The switch assembly is connected with the switch driver. Wherein the high-frequency signal recognizer executes a counting program comprising a preset number of counting cycles within a preset time interval to detect the number of sine waves of the first input signal, and generates a conduction signal when the number of sine waves of any counting cycle is greater than or equal to a preset threshold value. The switch driver turns on the switch assembly according to the turn-on signal.

The invention relates to the technical field of testing of parts of low-voltage apparatuses, and discloses a method and a device for testing bimetallic strips of a circuit breaker. The test method for the bimetallic strip of the circuit breaker comprises the following steps: step 10, assembling and fixing a to-be-tested assembly, including assembling and fixing the bimetallic strip, a flexible connection structure, an operating mechanism and a moving contact in a connection mode in the circuit breaker; step 20, connecting the to-be-tested assembly with a test circuit, and obtaining a real-time test posture of the bimetallic strip; and step 30, calculating thermal deformation data of the bimetallic strip according to the test posture and the initial posture. According to the test method for the bimetallic strip of the circuit breaker, the connection relation of the bimetallic strip in the circuit breaker is simulated, the test is carried out in the state, it is guaranteed that thermal deformation data of the test position of the bimetallic strip is consistent with the actual application process, and then the circuit breaker with higher reliability can be obtained.

The embodiment of the invention provides a vehicle monitoring method and system based on an electronic fence, electronic equipment and a storage medium, and belongs to the field of intelligent traffic monitoring. The method comprises the following steps: acquiring position information of a to-be-monitored vehicle, comparing the position information with a preset boundary of an electronic fence, and determining the condition that the to-be-monitored vehicle enters and exits the electronic fence; according to an electronic fence and a monitoring mode preset by a user, the state of the vehicle to be monitored is judged, and a corresponding monitoring or management action is triggered. According to the technical scheme, a user can customize the electronic fence and the monitoring mode according to actual requirements, personalized monitoring is achieved, the time when the vehicle enters and exits the fence and vehicle related information are accurately recorded, once the vehicle leaves a set area without authorization, management measures can be taken immediately, and then the vehicle is prevented from being stolen, misused or illegally moved.

The utility model discloses a push-pull type writing pen which comprises a pen holder and a pen core, the pen core is arranged in the pen holder, and a pen point of the pen core extends out of the pen holder. The push-pull type writing pen further comprises a sealing assembly, the sealing assembly comprises a sleeve and a sealing piece, an opening is formed in one end of the sleeve, a turnover sealing part is arranged on the sealing piece, the sealing piece is located in the sleeve, and the sealing part is configured to open and close the opening. Wherein the sealing piece is arranged outside the pen holder, and the sleeve is arranged outside the pen holder in a sleeving mode and can slide on the pen holder; the sleeve is configured to slide on the pen holder to drive the sealing component to turn over so as to open and close the opening. Misoperation is reduced, so that the use experience and safety of a user are improved.

The invention discloses an opening and closing control method and system based on a circuit breaker, relates to the technical field of circuit breakers, and adopts a Python technology to construct a quadratic polynomial function so as to accurately analyze the relationship between an expansion coefficient and temperature, and the process enables the deformation influence of temperature change on a bimetallic strip in the circuit breaker to be comprehensively grasped. The bending deformation of the bimetallic strip at different temperatures can be evaluated in real time based on the electric power data set and the temperature and deformation relation obtained through analysis. By setting a bending deformation threshold and comparing the bending deformation with the threshold, whether an opening mechanism is triggered or not can be judged, after the opening mechanism is triggered, the deformation process of the bimetallic strip is traced back, the upper limit temperature of the bimetallic strip is analyzed and determined, and the thermal response duration is calculated in combination with related material characteristic change data. The step can help to judge whether the thermal response of the bimetallic strip in the circuit breaker is stable or not, and a temperature compensation mechanism is started under the condition that the temperature is unstable, so that the thermal response process is optimized.

The invention provides an emergency stop reset control method and system for a charging pile, and relates to the technical field of data processing, and the method comprises the steps: receiving an emergency stop trigger signal, generating an emergency stop state signal, cutting off a main circuit power supply of the charging pile, and recording the operation state parameter of the current charging pile; classifying the operation state parameters through a preset safety threshold group to generate a normal state subset and an abnormal state subset; performing multi-dimensional analysis on the abnormal state subset; when the analysis result is prohibition, generating a reset failure instruction; when the analysis result is allowed, a reset confirmation signal is generated; executing a reset activation operation, and recording the change of the running state parameters of the charging pile; dynamically monitoring the operation state parameters of the charging pile to form monitoring data; when abnormal state data is detected in the monitoring data, repeating the steps until the equipment is in a stable state or enters a manual intervention mode; the accuracy and the intelligent degree of sudden stop reset of the charging pile are improved.

The invention provides a water outlet head and a water outlet head mounting method. The water outlet head comprises an assembling seat, a switching assembly, a valve seat, a switch seat and a nut. The assembling base is fixedly arranged at a water outlet of the faucet in advance and provided with a mounting cavity. The switching assembly and the valve seat are sequentially installed in the installation cavity, the switching assembly is provided with a valve rod which is installed in a rotating mode and penetrates through the valve seat, the valve rod is sleeved with the switch seat, the switch seat is in butt joint with the valve seat, a limiting structure for limiting rotation flexibility is arranged between the switch seat and the valve rod, and the nut is locked at the end of the valve rod. The invention provides a water outlet head which solves the problems that when the installation position of a water outlet head is directly arranged on an existing faucet, forming is not easy, precision is poor after forming, and installation errors are large, and therefore a valve seat and a switch seat can be installed in a faucet water outlet in the wanted state or angle subsequently.

The invention relates to the technical field of fresh air control scheme design, in particular to a passive fresh air control method and system based on cloud control and electronic equipment. Sending environmental data of a target room to a mobile terminal through a cloud platform by utilizing a humidity sensor, an infrared thermal imaging sensor and a carbon dioxide concentration sensor which are arranged in the target room; the operation state of the fresh air system arranged in the target room is controlled according to the environment data of the target room, the indoor environment data is monitored in real time, the operation state of the fresh air system is intelligently adjusted according to the data, and the problems that in the prior art, a fresh air system cannot be adjusted according to the number of people and the motion state of each person, and the intelligent degree is low are solved; the operation state of the fresh air system is intelligently adjusted according to the indoor environment data, the air quality adjusting efficiency is improved, automatic low-power operation is achieved when no person exists, and the intelligent degree of passive fresh air control and the user experience are improved to a great extent.

The invention, which relates to the technical field of the relay protection cabinet, discloses a device and method for protecting the on-off mistaken touch of an outlet pressing plate, and the device comprises at least one on-off mistaken touch unit which comprises a wiring assembly, a pressing plate, a butt joint assembly, and a fixing cap. The acquisition unit comprises a butt joint piece, an acquisition device and an electrical cabinet; and each group of butt-joint assembly collects and gathers the data into the collector through the butt-joint piece. The device has the beneficial effects that by introducing a magnetic force detection mechanism, misoperation is effectively prevented when electrical personnel carry out protection outlet pressing plate switching operation, and the operation safety is remarkably improved. The misoperation risk caused by human factors is reduced, and the reliability of the relay protection device is improved. Through real-time monitoring and misoperation detection, it is ensured that the relay protection device is always in the optimal working state, and the reliability of the whole power system is improved.

The invention discloses a printer consumable management method and system, electronic equipment and a storage medium, and relates to the field of printer management. In the method, a first RFID of the consumable is read through an RFID reader of a printer, and the first RFID is transmitted to an application program through wireless transmission; when the application program receives the first RFID, querying a corresponding template through the first RFID and displaying the template in the application program; in response to the operation that a user clicks the target template, the target template is used for printing, the first length of each time of printing of the consumables is recorded, the multiple first lengths are added to obtain a second length, and the difference value between the total length of the consumables and the second length is calculated; when the difference value is smaller than the threshold value, it is prompted that the remaining length of the consumables is insufficient, and when the difference value is zero, the first RFID is added into the blacklist, and replacement of the consumables is prompted. By implementing the technical scheme provided by the invention, the use condition of the consumables can be monitored in real time, and the printer consumables can be effectively managed.

The utility model belongs to the technical field of medical instruments, and particularly discloses a puncture gripper for a laparoscope. The device comprises an outer sheath, a convex ring is arranged at one end of the outer sheath, and a clamping component is arranged in the outer sheath; the clamping component comprises a handle, one end of the handle penetrates through one side of the outer sheath and extends into the outer sheath, the outer diameter of one end of the handle is larger than the inner diameter of the convex ring, a pair of clamping forceps is arranged at the end, away from the handle, in the outer sheath, the handle is used for driving the clamping forceps to conduct rapid clamping, and a limiting groove is formed in the end, close to the clamping forceps, of the handle. A connecting rod is fixedly connected into the limiting groove, a target object can be rapidly clamped through the clamping component, the operation efficiency is improved, the clamping accuracy is ensured, misoperation is avoided, automatic clamping is achieved through rebound of an internal spring, medical staff do not need to keep the same action after clamping, manpower is saved, and the working efficiency is improved. And the clamping stability can be ensured.

The invention relates to the technical field of fire detection equipment, in particular to an energy storage power station composite fire detection device which comprises a mounting base, a water spraying pipeline is arranged in the middle of the mounting base, a conical shell is arranged in the middle of the water spraying pipeline, and a conical body capable of sealing the water spraying pipeline is arranged in the conical shell. A plurality of smoke suction mechanisms capable of sucking smoke in a fire scene are arranged on the peripheral side in the conical shell, a water curtain forming mechanism capable of forming a water curtain barrier in the fire scene is arranged at the bottom of the conical shell, and air suction control mechanisms in the smoke suction mechanisms utilize the deformation characteristic of bimetallic strips when the temperature rises. The opening and closing of an air inlet hole are automatically controlled, so that fire scene smoke is accurately sucked, the water curtain forming mechanism flexibly adjusts the size of a water curtain jet orifice according to the working state of the device through the cooperation between an upper sliding shell and a lower flow guide disc, and an effective water curtain barrier is formed in a fire scene.