37results about How to "Avoid dangerous events" patented technology

The invention relates to the field of computer vision and deep learning, in particular to a video group behavior recognition method based on cascade Transformer, which comprises the following steps: firstly, acquiring and generating a video data set, extracting three-dimensional spatial-temporal features from the video data set through a three-dimensional backbone network, and selecting a key frame image spatial feature map; preprocessing the key frame image spatial feature map, sending the preprocessed key frame image spatial feature map into a human body target detection Transformer, and outputting a human body target box in the key frame image; then, mapping a sub-feature map corresponding to the screened human body target box on the key frame image feature map, calculating query / key / value in combination with a key frame image surrounding frame feature map, inputting the query / key / value into a group behavior recognition Transfomer, and outputting a group level spatial-temporal coding feature map; and finally, classifying group behaviors through a multi-layer perceptron. The method has the effect of effectively improving the group behavior recognition accuracy.

The invention relates to an intelligent management and control system for hazardous chemical substances. The intelligent management and control system comprises a warehouse in-out management unit, a monitoring alarm unit and a management and control server, wherein the monitoring alarm unit comprises a warehouse monitoring alarm module arranged in a hazardous chemical substance warehouse and a monitoring room alarm module arranged in a monitoring room; the warehouse in-out management unit comprises an RFID electronic tag used for being configured on the hazardous chemical substances, and a read-writer matched with the RFID electronic tag; and the read-writer, the warehouse monitoring alarm module and the monitoring room alarm module are connected with the management and control server. Compared with the prior art, the intelligent management and control system can realize intelligent management of the hazardous chemical substances, and improve the management efficiency and the management reliability.

The invention discloses a wireless temperature monitoring inspecting system and method. A wireless temperature measuring card is used for measuring temperature of a switch cabinet and a transformer cabinet in a wireless mode. An RFID long-distance read-write device is used for reading equipment temperature information measured by the wireless temperature measuring card in a wireless mode. The information is processed preliminarily and then is sent to a wireless communication module. A wireless communication module in a production zone is used for transmitting data to a wireless communication module at a data server end and then transmitting the data to a data server, the data server displays the information on a monitoring image in a graphics mode, and a wireless radio frequency inspecting card is arranged at an inspecting point and is used for sending inspecting signals to a handheld inspecting PDA read-write device. According to an RFID wireless network, a 2.45 GHz high-frequency signal transmission is used, accurate information can be obtained, measuring points between control cabinets and in the same control cabinet can be separated, temperature parameter dynamic situations and real-time information in the control cabinets can be timely and accurately reflected to a monitoring computer system, alarming can be carried out timely, and potential safety hazards are reduced.

The invention belongs to the technical field of monitoring systems, and particularly relates to a distributed network visual monitoring system. A frame difference image processing module is used for performing image foreground segmentation on an image picked up by a monitoring terminal, forming a foreground image, performing inter-frame RGB spatial similarity processing and inter-frame foreground pixel area difference processing on the foreground image, forming frame difference image processing data by statistical data of inter-frame RGB spatial similarity and statistical data of foreground pixel area difference data, and analyzing and processing the frame difference image processing data and a frame difference image threshold to form a motion target detection result. Through adoption of the distributed network visual monitoring system, the key problem of how to enhance the real-time performance of an embedded visual system while ensuring the recognition and tracking efficiency in the prior art is solved. The distributed network visual monitoring system has the beneficial technical effects of enhancing the capability of video monitoring on the aspects of finding abnormal behaviors in real time and transmitting alarm information immediately, greatly lowering the labor cost, generating good economical and social benefits, and increasing the efficiency of security and protection monitoring.

A method and server for hazard prediction are disclosed in embodiment of the present application, wherein, the method includes: obtaining monitoring data associate with a target user, wherein the monitoring data is used to characterize the health status of the target user or the security status of the surrounding environment of the target user, determining at least one target hazard information associated with the target user based on the monitoring data, comparing the target hazard information with the standard hazard information to determine the hazard coefficient and weight value corresponding to the target hazard information, according to the hazard coefficient and weight value corresponding to the target hazard information, determining the hazard coefficient of the target user. The technical proposal provided by the application can realize the prediction of the hazard coefficient of the surroundings of the user, so that the user prepares in advance according to the feedback hazardcoefficient, thereby avoiding the occurrence of a hazardous event, or avoiding being injured by the hazardous event that has already occurred.

The invention provides a control method and a control system for intelligent home equipment. The method comprises the following steps: acquiring video data of a region where the intelligent home equipment is placed; extracting image characteristics from the acquired video data; matching the extracted image characteristics with preset image characteristics, wherein the preset image characteristics correspond to user action characteristics one to one; when the extracted image characteristics are matched with the preset image characteristics, determining a current user action characteristic, transmitting a first control instruction to the intelligent home equipment to control the intelligent home equipment to be switched to a working mode corresponding to the current user action characteristic. Therefore, when the current user action characteristic is determined by acquiring the video data of the region where the intelligent home equipment is placed, the control method transmits the first control instruction to the intelligent home equipment in the first time, so as to control the intelligent home equipment to be switched to the working mode corresponding to the current user action characteristic for operation in time, so that a dangerous event caused by manual operation or unexpected operation is prevented.

The invention relates to a manufacturing industry field process abnormal behavior detection method, which is mainly used for researching a detection method based on a behavior characteristic knowledgebase for manufacturing industry field process abnormal behavior detection, and is used for constructing a random forest abnormal detection model based on a random forest algorithm. According to the specific implementation method, PCA method dimension reduction is carried out on process data of an industrial field, feature selection is carried out by adopting an integrated rule tree model, and theprocess data is classified by adopting a random forest algorithm. Each path of the random forest corresponds to one rule, good interpretability is achieved, the classification accuracy is greatly improved, a large number of input variables can be processed, and even if process data contains missing values, the classification result can still reach high accuracy. A behavior characteristic knowledge base and a real-time emergency decision-making framework of an unknown behavior scene are fused, and abnormal behaviors are early warned in advance by predicting behavior detection of industrial field process data.

The invention discloses a hydraulic climbing template monitoring and analyzing method which comprises the following specific steps: 1, designing and arranging hydraulic climbing templates, and dividing each hydraulic climbing template into six platforms from top to bottom; 2, installing the hydraulic climbing template step by step, and arranging a stress sensor and a strain sensor; 3, respectivelyextracting stress data and strain data under different working conditions of the hydraulic climbing template; 4, establishing a finite element model of the hydraulic climbing template; 5, comparing the analog value with stress data and strain data extracted in practice; and 6, carrying out stress evaluation and safety evaluation on the hydraulic climbing template according to the stress and strain simulation values output by the monitoring points under different working conditions. Functional division is carried out on different platforms of the hydraulic climbing formwork, so that load selection during simulation of the hydraulic climbing formwork is determined, and early modeling and later adjustment are facilitated; and by establishing a finite element model, monitoring and evaluationcan be conveniently carried out under different working conditions and different parts.

The embodiment of the invention discloses a swimming safety monitoring method which is applied to a wearable device. The method comprises: detecting whether a user' head is located in the water or not, and determining a first detection result; detecting the user's head posture, and determining a second detection result; generating early warning information according to the first detection result and the second detection result; and outputting the early warning information. The embodiment of the invention further discloses a swimming safety monitoring device.

The invention provides a device for adjusting synchronization time of multipath auxiliary contacts of a contactor and a use method thereof. The device comprises contactor auxiliary contacts. The contactor auxiliary contact is provided with a circuit board, a micro switch, a push plate and a push rod, and a spindle. The micro switch is between the circuit board and the push plate. The spindle is ona center line of the circuit board and the push plate. The circuit board is mounted on one end of the spindle. The micro switch is installed below the circuit board. The device can solve a problem ofdifficulty in spatial layout of the auxiliary contacts of the contactor, and also can adjust the synchronization time of the auxiliary contacts of the contactor, thereby greatly improving performanceand working reliability of the contactor, and effectively preventing dangerous events caused by synchronization time deviation of the auxiliary contacts of the contactor. Thus, range of application of the contactor is wider, and use is safer.

The invention provides a safe driving early warning method based on a risk field, and the method mainly comprises three parts: a data collection module, a risk quantification module and a safety early warning module. Through various devices,environment information around a vehicle is collected, and position coordinates and speeds of the vehicle and surrounding vehicles in a period of time in the future are predicted based on the collected data; the risk to the vehicle caused by static traffic environment factors, dynamic traffic control information and moving objects at each moment in a period of time in the future is calculated by combining a risk field theory; according to the risk discrimination method provided by the invention, the risk is discriminated, so that the safety state of the vehicle in a period of time in the future is obtained; and corresponding safety early warning is given out to remind a driver to adjust the vehicle motion state in real time to avoid risks, so that the driving safety level is improved.

The invention provides a dynamic positioning semi-submersible ocean platform thruster thrust test method. the method comprises the steps of arranging a semi-submersible ocean platform in a safe test sea area; enabling at least one pair of thrusters on the semi-submersible ocean platform to operate at preset test power to perform test, and recording test data of each thruster, wherein thrust of the two thruster of each pair of the thrusters is in a straight line and opposite in direction. By the aid of the method, the relevant thrust test of the thrusters can be completed by keeping the platform position unchanged basically, the effect from the sea conditions is small, and the platform safety is guaranteed; stable output of the thrusters can be guaranteed during test, and deviations of test results are prevented; limit test conditions can be met, and the safety is controllable.

The present invention provides a method for cleaning an ultrafiltration membrane bag, and belongs to the field of filter membrane cleaning methods. Hot alkali salt mixed solution is use d for cycling washing of the ultrafiltration membrane bag; PBS buffer is used for washing balance; by controlling the pressure in the operation, the integrity of membrane bag is ensured in the operation, so as to achieve the purpose of impurity removal from the membrane bag. The method of the invention is simple and easy to control; the used solutions are commonly used in vaccine production process, do not increase the risk of product quality and safety; the method can effectively remove impurities in ultrafiltration membrane bag, increase the average water flow, reduce the risks of membrane penetration and membrane leakage in the dialysis and concentration processes, and effectively prevent product loss, environmental pollution and operator hazardous incidents due to leakage; and the method can be widely used in the field of preparation of vaccines, improves production efficiency, reduce production costs, and achieve good economic value.

The invention discloses a mobile phone alarm method and a special mobile phone. The method comprises the following steps that: a caring circle area range for mobile phone activity needs to be preset and comprises a first caring circle and a second caring circle, wherein the first caring circle is the safe action area, at least three fixed points at the edges of the safe action area needs to be chosen on a downloaded GPS (global position system) map, and the chosen fixed points can be connected to be a closed safe action area according to the GPS data of the fixed points; and the second caring circle is a dangerous action area and can be set according to the setting method of the first caring circle; when the position of the mobile phone is in the second caring circle, alarm information can be formed and sent to a preset mobile phone number; and if the position of the mobile phone is not in the second caring circle, whether the position of the mobile phone is in the first caring circle or not can be continuously judged, and if the position of the mobile phone is in the first caring circle, a safe information can be sent to the preset mobile phone number. According to the invention, the user of the mobile phone is in a preset dangerous area or not can be known in time, and thus dangerous event is prevented from happening.

The invention relates to a shaftless pneumatic clamping wire taking-up and arranging mechanism and can solve the technical problems of great possibility of generating vibration and low working efficiency in the prior art. The shaftless pneumatic clamping wire taking-up and arranging mechanism comprises a moving unit and a rotating unit; the moving unit comprises a wire arranging screw horizontallyarranged, a screw supporting seat and a base; a linear guide rail I is arranged on the base; a moving plate is arranged in parallel above the wire arranging screw; the moving plate is fixedly connected with the wire arranging screw; the moving plate is movably connected with the linear guide rail I; the rotating unit comprises a take-up and pay-off bearing seat; the take-up and pay-off bearing seat is fixed on the moving plate; the take-up and pay-off bearing seat is mounted on an active bearing seat bracket; a take-up and pay-off driving plate is fixed on a driving shaft; an optical fiber disk is arranged on the driving shaft; a cylinder shaft of a clamping cylinder is connected with a clamping bearing seat bracket; a clamping bearing seat is fixedly arranged on the clamping bearing seatbracket; a clamping conical shaft is arranged on the clamping bearing seat; the moving plate is also provided with a linear guide rail II; the clamping bearing seat bracket is fixed on the linear guide rail II. The shaftless pneumatic clamping wire taking-up and arranging mechanism has a good damping effect and high working efficiency.

The present invention provides a method for cleaning an ultrafiltration membrane bag, and belongs to the field of filter membrane cleaning methods. Hot alkali salt mixed solution is use d for cycling washing of the ultrafiltration membrane bag; PBS buffer is used for washing balance; by controlling the pressure in the operation, the integrity of membrane bag is ensured in the operation, so as to achieve the purpose of impurity removal from the membrane bag. The method of the invention is simple and easy to control; the used solutions are commonly used in vaccine production process, do not increase the risk of product quality and safety; the method can effectively remove impurities in ultrafiltration membrane bag, increase the average water flow, reduce the risks of membrane penetration and membrane leakage in the dialysis and concentration processes, and effectively prevent product loss, environmental pollution and operator hazardous incidents due to leakage; and the method can be widely used in the field of preparation of vaccines, improves production efficiency, reduce production costs, and achieve good economic value.

The invention provides a control method and a control system for smart household equipment. The method includes: collecting video data in the area where the smart home device is located; extracting image features from the collected video data; matching the extracted image features with pre-stored image features, the pre-stored image features and user action features one by one Corresponding; when the extracted image feature matches the pre-stored image feature, determine the current user action feature, and send the first control command to the smart home device to control the smart home device to switch to the working mode corresponding to the current user action feature. Therefore, when the present invention determines the current user action characteristics by collecting video data in the area where the smart home device is located, the first control command is sent to the smart home device at the first time, so as to timely control the smart home device to switch to the working mode corresponding to the current user action feature Operation, to prevent the occurrence of dangerous events due to human operation or accidental operation.

The invention discloses a bolt-type gun lock with simple and practical structure, which comprises an outer shell and an inner plate. The outer shell is provided with several counterbores, and the inner plate is provided with several threaded holes corresponding to the counterbores on the outer shell. , the inner panel includes a closing system and an opening system, the closing system includes a push rod. Stress mechanism, the stress mechanism of the telescopic rod includes an end face in the shape of a bevel, and the end is provided with a convex ring, the outer diameter of the telescopic rod is covered with a telescopic rod elastic object, and the other end of the telescopic rod is connected to an emergency slide block, and the emergency slider is placed in the square hole of the inner panel. The opening system includes a motor, the motor is connected with a cam, the cam is in contact with the emergency slider, and the circuit board is connected with a control device. The device is simple in structure, easy to operate, and avoids frequent failures. The safety of the gun lock provides a reliable guarantee.

The invention provides an inverter malfunction stop system. In a past railway accident, a malfunctioning logic unit of an inverter could not receive acceleration commands, according to which the logic unit maintained the previously received acceleration command and the inverter maintained acceleration while the train is attempting to decelerate, which lead to an accident since it was impossible to obtain the desired deceleration. In order to overcome this problem, the reliability of the inverter logic unit must be improved. The present invention provides an inverter monitoring apparatus independently from an inverter, and when malfunction of the inverter is detected, a high-speed circuit breaker or the like is activated to disconnect a main circuit and the operation of the inverter is stopped forcibly, or a logic unit of the inverter is reset, for example, so as to prevent dangers caused by the malfunction of the inverter.

The invention provides a dynamic positioning semi-submersible ocean platform thruster thrust test method. the method comprises the steps of arranging a semi-submersible ocean platform in a safe test sea area; enabling at least one pair of thrusters on the semi-submersible ocean platform to operate at preset test power to perform test, and recording test data of each thruster, wherein thrust of the two thruster of each pair of the thrusters is in a straight line and opposite in direction. By the aid of the method, the relevant thrust test of the thrusters can be completed by keeping the platform position unchanged basically, the effect from the sea conditions is small, and the platform safety is guaranteed; stable output of the thrusters can be guaranteed during test, and deviations of test results are prevented; limit test conditions can be met, and the safety is controllable.

The invention discloses a remote-control automatic high-voltage test system, belongs to the technical field of electronic test and measurement. The provided remote-control automatic high-voltage testsystem is high in safety, realizes automatic high-voltage test and replaces manual test of workers, is simple and easy to operate and low in cost, isolates contact between high-voltage equipment and ahuman body, and avoids dangerous events of electric shock and the like. The system comprises a computer and a high-voltage test instrument, and is characterized in that the computer and a single-chipmicrocomputer controller form a control channel through an output signal connector; an output port of the single-chip microcomputer controller is connected with a relay module; and the relay module and the high-voltage test instrument form a control channel through an input signal connector. The problem of operation of staffs is solved; and through combination of hardware and software, probability of errors can be reduced, test can be completed rapidly and accurately, and contact between the staffs and high-voltage equipment can be effectively isolated to avoid the dangerous events.

The present application discloses a method and system for intelligent monitoring of manhole covers. The method includes: sending laser signals from N positions with different coordinates in the horizontal direction, where N is an integer greater than or equal to 2; emitting the nth laser from the nth position to the manhole cover Signal, receiving the nth echo signal reflected by the manhole cover, determining the nth time difference between the transmitted and received signals; determining the nth distance according to the nth time difference and the speed of light; according to the difference between the mth distance and the nth distance value, which determines the state of the manhole cover. The system includes a monitoring terminal and a server, and the monitoring terminal includes N laser ranging sensors for collecting the distance between the manhole cover and each laser ranging sensor; the server is used for receiving geographical position signals, distance Signal, determine the state of the manhole cover. The application can reduce the cost and improve the accuracy of monitoring after the manhole cover is abnormal.

The invention discloses an excavator capable of achieving fine manipulation. The excavator comprises a rack and a cab. Power wheels are arranged under the rack. Caterpillar bands are arranged outside the power wheels. A pedal is arranged on the side face of the rack. The cab is arranged on the rack. An oil way is arranged beside the cab. A power device is arranged beside the oil way. A movable arm is arranged at the front end of the cab. A bucket rod is arranged at the front end of the movable arm. A bucket is arranged at the front end of the bucket rod. A connecting rod is arranged beside the bucket. A bucket oil cylinder is arranged behind the connecting rod. A bucket rod oil cylinder is arranged beside the movable arm. A movable arm oil cylinder is arranged on the movable arm. The excavator has the beneficial effects that a driver can see images in the visual blind area clearly through external cameras, fine manipulation is achieved, and occurrence of dangerous incidents is avoided in time.

The invention belongs to the technical field of electronics and provides a computer case with a storage box, a clock and a smoke alarm. The computer case comprises a computer case body, the storage box is fixed on the upper side of the computer case body through a screw, two grooves are formed in two lateral sides of the computer case body, the smoke alarm is inlaid in the left groove, and the clock is inlaid in the right groove. The computer case with the storage box, the clock and the smoke alarm solves the problem that a computer case in the prior art is not provided with the storage box, the clock and the smoke alarm, and has the advantages that a space of the computer case body is fully made use of, sundries storage and time display can be achieved, and the computer case can prevent risk event occurrence by reminding a user by the smoke alarm in case of smoke, so that indoor safety is enhanced.

A provided thin-sheet hot-lamination apparatus comprises a first press roller, a second press roller, a first heating element, and a first double-metal structure arranged between the first heating element and the first press roller; the first heating element is used to provide heat energy for the first press roller; and also because the first double-metal structure deforms according to the environment temperature, the first double-metal structure is capable of pushing the first heating element to depart from the first press roller or enabling the first heating element to approach the first press roller.

The invention belongs to the technical field of monitoring systems, and particularly relates to a distributed network visual monitoring system. A frame difference image processing module is used for performing image foreground segmentation on an image picked up by a monitoring terminal, forming a foreground image, performing inter-frame RGB spatial similarity processing and inter-frame foreground pixel area difference processing on the foreground image, forming frame difference image processing data by statistical data of inter-frame RGB spatial similarity and statistical data of foreground pixel area difference data, and analyzing and processing the frame difference image processing data and a frame difference image threshold to form a motion target detection result. Through adoption of the distributed network visual monitoring system, the key problem of how to enhance the real-time performance of an embedded visual system while ensuring the recognition and tracking efficiency in the prior art is solved. The distributed network visual monitoring system has the beneficial technical effects of enhancing the capability of video monitoring on the aspects of finding abnormal behaviors in real time and transmitting alarm information immediately, greatly lowering the labor cost, generating good economical and social benefits, and increasing the efficiency of security and protection monitoring.

The invention provides a riding safety control method and device, a model training method and device, equipment and a medium, and relates to the technical field of data processing, and the riding safety control method comprises the steps: obtaining historical service feature information of a to-be-recognized service provider, wherein the historical service feature information comprises attribute information of a to-be-identified service provider and service information of the to-be-identified service provider; according to the historical service feature information of the to-be-identified service provider, determining a risk level of the to-be-identified service provider by adopting a pre-trained risk prediction model; if the risk level is higher than the preset level, monitoring the service of the to-be-identified service provider. By monitoring the service of the service provider with the high risk level obtained through model prediction in real time and pushing the preset educationmaterials in advance, dangerous events can be effectively prevented, the safety of the service requester is guaranteed, and the service experience is improved.

The invention discloses an operation event pushing method based on Redis, which comprises the steps of obtaining configuration data of an operation event, the configuration data comprising a device corresponding to the operation event and a device ID number; judging whether the operation event is a sensitive operation event or not; if so, acquiring all historical operation events generated by theequipment corresponding to the equipment ID number; identifying the risk level of the operation event according to all historical operation events; judging whether the risk level corresponding to theoperation event reaches a preset risk level or not; and if so, storing the operation event and the risk level corresponding to the operation event, and intercepting the operation event to prevent theoperation event from being pushed to the Redis database. Through the mode, the operation event pushing method disclosed by the invention can perform risk assessment on the operation event pushed to the Redis database to intercept the operation event with a high risk level, so that dangerous events can be effectively avoided, and information security and property security in the Internet are effectively ensured.

The invention discloses a power distribution cabinet temperature monitoring device for a factory. The device comprises a plurality of wireless temperature measurement cards arranged in a power distribution switch cabinet. The wireless temperature measurement cards are connected with a wireless reader-writer in a wireless data transmission mode, the wireless reader-writer is connected with a wireless communicator, the wireless communicator is connected with a server-side wireless communication module of a data server, and the data server is connected with a terminal management user microcomputer through a local area network. The server-side wireless communication module is in data connection with a mobile phone through an integrated short message sending device. The device can timely and accurately reflect dynamic conditions and real-time information of temperature parameters in a switch cabinet to a terminal management user microcomputer; for example, when the temperature of the powersupply cabinet exceeds a normal value, the system timely gives an alarm and notifies related personnel through sound, light emission, short messages and the like, so that dangerous events can be timely handled, and the occurrence of the dangerous events is avoided.