68results about How to "Realize linkage control" patented technology

The invention discloses an intelligent monitoring platform and method based on AI vision, and relates to the technical field of security monitoring, the intelligent monitoring platform comprises a video acquisition module, an intelligent calculation module, an AI vision analysis module, an alarm module and a comprehensive management platform, the video acquisition module is used for acquiring video data of a monitoring area in real time; the intelligent calculation module comprises intelligent equipment deployed in a monitoring area, and the intelligent equipment is responsible for performing feature extraction and preliminary analysis on the video data; the AI visual analysis module is used for using a cloud server and is responsible for further performing feature extraction and analysis classification on the video data processed by the intelligent calculation module, and the alarm module is used for triggering an alarm when the intelligent calculation module and the AI visual analysis module cooperatively detect abnormal behaviors of the video data. According to the invention, the real-time performance and the accuracy of monitoring are improved, and the false alarm rate and the missing report rate are reduced; and the specific environment is monitored in a customized manner, so that the pertinence and effectiveness of monitoring are improved.

The invention discloses a ZigBee Internet of Things intelligent agricultural monitoring system based on a cellular technology, which adopts ZigBee to self-establish a wireless cellular network, and environment monitoring sensors and control execution nodes at different positions carry out data transmission and communication with a cellular ZigBee node through an RS-485 bus; each environment monitoring sensor collects corresponding agricultural plant growth environment real-time data, the control execution node controls an execution signal, and the data or the signal is sent to the honeycomb ZigBee node through an RS485 bus; the honeycomb ZigBee node and the intelligent gateway ZigBee node communicate with each other through an ad hoc network, and the intelligent gateway ZigBee node sends the received data to the processor for processing and then stores the data to a server side through cloud transmission. An intelligent agricultural system network is established and various information data transmission and communication are completed through cellular wireless networking, and linkage control of control nodes and environment monitoring is achieved.

The invention relates to the technical field of traffic safety protection, and discloses a tunnel portal flexible blocking system which comprises a water curtain generation system which is arranged on a portal frame of a tunnel portal, is composed of an efficient spray head, a water storage tank, a liquid level sensor and a controller and is used for rapidly forming a flexible water curtain barrier to slow down the vehicle speed and providing visual warning. The water source is taken from a tunnel leakage water discharge system and ensures the water quality through a filtering device; the flexible barrier gate system is installed near a tunnel entrance and is of a structure that an aluminum alloy core column wraps a foam material. A flexible water curtain barrier can be rapidly formed in emergency through the water curtain generation system, and the effects of blocking vehicles and preventing further accident expansion are achieved. The automatic design enables the water curtain barrier to be formed within second-level time, the water curtain barrier can be closed at a low speed in emergency, vehicles are flexibly intercepted, and damage to the vehicles and system equipment is reduced.

The invention relates to automatic coating equipment and method for a variable-thickness ultra-low-density heat-proof coating, and belongs to the technical field of surface engineering heat protection coatings. The automatic coating equipment comprises a spraying robot, a spraying programming system, a servo rotating table, an automatic coating viscosity controller, a flow controller, an automatic terahertz thickness measuring system, an industrial personal computer and the like; performing spraying program programming on the workpiece through a spraying programming system; the spraying robot clamps a spraying gun, and a spraying program is operated to achieve automatic spraying of paint; automatic control of the viscosity of the coating is realized through the automatic viscosity controller of the coating; the flow controller is used for realizing stable control and output of the coating discharge amount; a terahertz automatic thickness measuring system is used for measuring the thickness of a wet film and the thickness of a dry film of the coating; the whole programmed control of the spraying robot, the terahertz automatic thickness measuring system, the rotary table, the guide rail, the flow and the thickness measuring system is controlled through the industrial personal computer, the automatic spraying device is suitable for automatic spraying of the planetary detector back cover structure, and the thickness error is smaller than or equal to + / -3%.

The invention discloses a view data return processing method for obstacle recognition, which comprises the following steps that: when an ITE system recognizes that an obstacle exists in a line, the position alarm information of the obstacle is transmitted to a VOBC; the vehicle-mounted ATP forwards the data to the ATS system, and the data is displayed and output at the ATS scheduling workstation; the alarm information is transmitted to the MMI through the VOBC, and the MMI continuously outputs an alarm prompt tone until the train stops in front of the obstacle; and after receiving the alarm information, the VOBC forwards an active end obstacle identification effective point location to a vehicle-mounted PIDS through a TCMS system, and the PIDS simultaneously drives a cab to irradiate a rail surface camera to obtain a real-time picture and a picture at a set moment before an obstacle is identified, and uploads and returns view data for scheduling. According to the invention, active obstacle identification of the full-automatic operation project of the urban rail transit and view data return after obstacle identification are realized.

The invention relates to the technical field of automation control, and provides a linkage control method and a control system.The linkage control method is applied to the linkage control system.The linkage control method comprises the following steps that in an operation mode, current position information of a climbing assembly in a current tower drum is obtained, the current position information is the current running height of the climbing assembly in the ascending direction or the descending direction. Under the condition that the current position information is determined to be target position information, operation information is sent to a cover plate controller, so that a corresponding platform cover plate responds to the operation information and executes opening or closing operation; the target position information is that the climbing assembly reaches a preset distance position from a target layer platform, and the operation information is the number of layers of the platform and execution of an action of opening or closing a platform cover plate or only execution of an action of opening or closing the platform cover plate. Linkage control of the climbing assembly and the platform cover plate is achieved, safe operation of the climbing assembly is ensured, and accidents of collision of the platform and the platform cover plate are avoided.

The invention relates to a high-ground-temperature goaf coal spontaneous combustion inhibition simulation platform and method. The simulation platform comprises a temperature and humidity adjusting system, a coal sample reaction system, a stopping agent spraying system and a gas collecting and detecting system. The temperature and humidity adjusting system controls the temperature and humidity of mixed air through an air generator, a drying chamber, a water tank chamber and a water bath thermotank so as to simulate a high-temperature and high-humidity environment. In the coal sample reaction system, a coal sample tank is filled with a coal sample, the temperature of the coal sample is controlled through a temperature control box, a gas inlet and a water outlet are formed in the bottom, a gas outlet is formed in the top, and the gas collection and detection system monitors gas products through a multi-parameter gas sensor. The inhibitor spraying system sprays an inhibitor to a coal sample through a high-pressure plunger pump, and the coal spontaneous combustion characteristic and the inhibition effect are analyzed in real time. The coal spontaneous combustion process under different environmental conditions is simulated by changing the temperature, the humidity and the oxygen concentration and adding the inhibitor, and the effects of different inhibitors are evaluated. The platform provides theoretical basis and experimental data for researching the spontaneous combustion characteristics and inhibition technology of the coal in the high-ground-temperature goaf, and has the characteristics of simplicity and convenience in operation and high efficiency.

The present application belongs to the field of coal mine, and relates to a coal mine underground orifice blowout prevention dust isolation device, which comprises, in sequence, a stamping dust isolation assembly, a gasket eccentric isolation assembly, a columnar brush array isolation assembly and a slag collecting main body, the slag collecting main body is connected with an orifice sealing pipe in a hole, and a drill rod is arranged through the stamping dust isolation assembly, the gasket eccentric isolation assembly, the columnar brush array isolation assembly and the slag collecting main body. The present application realizes the blocking of dust in the hole through the brush dust blocking of the columnar brush array isolation assembly, the eccentric dust isolation of the eccentric isolation assembly and the stamping dust isolation of the stamping dust isolation assembly, realizes the linkage control of the mechanism on the sealing assembly, and the greater the gas pressure sprayed out of the hole, the better the sealing effect of the sealing assembly, so that the safety hidden danger problem of gas spray hole in the drilling process can be effectively solved.

The hot water kettle comprises a shell assembly, a heating assembly and an air supply device, the shell assembly comprises a kettle body and an air duct shell, a water storage cavity and a water outlet communicated with the water storage cavity are formed in the kettle body, and the air duct shell is connected with the kettle body; an air guide channel and a first through hole are formed in the air duct shell, and the first through hole, the air guide channel and the water storage cavity are sequentially communicated; the heating assembly is arranged on the kettle body or the air duct shell so as to heat the water storage cavity; the air supply device is arranged on the air duct shell and used for sucking air flow from the first through hole and guiding the air flow into the water storage cavity, water in the water storage cavity is rapidly cooled, the boiled water cooling time is shortened, and the requirement that a user can drink water with the appropriate temperature in time is met.

The invention discloses a biopsy needle assisting in positioning, and relates to the technical field related to biomedicine, the biopsy needle comprises an arranged biopsy cylinder, a handheld groove is formed in the surface of the biopsy cylinder, a needle head is connected to the side end of the biopsy cylinder through a clamping table, a limiting block is installed in the biopsy cylinder, an arc groove matched with the needle head is formed in the limiting block, and the needle head is connected with the handheld groove. An auxiliary assembly is arranged in the biopsy cylinder, a positioning lamp is installed at the side end of the biopsy cylinder, and a switch is installed at the top of the biopsy cylinder. According to the biopsy needle capable of assisting in positioning, after the biopsy needle is turned on, the positioning lamp can project light rays to assist in determining the puncture position, the positioning accuracy is improved, tissue damage caused by positioning deviation is reduced, the scale and the notch on the outer side of the needle head facilitate judgment of the length of puncturing into a human body, a tissue sample is obtained in a mechanical moving mode, and the needle head is pulled out after obtaining is completed. The driving assembly drives the moving seat to move leftwards, and the inner core is pushed back to cut off and push out the tissue sample.

The application discloses a kind of semi-automatic sealing packing garbage can and its using method, it belongs to garbage can technical field, semi-automatic sealing packing garbage can, including from bottom to top rotating connection's barrel, middle frame and top cover, middle frame is equipped with the box body of storing no breakpoint garbage bag;Two sealing doors driven by drive assembly are installed in middle frame, and garbage bag is arranged between two sealing doors;Barrel top is equipped with manual sealing mechanism;It is also equipped with three switch halls signal connection with drive assembly, respectively monitor the state of top cover, middle frame and sealing door, realize that sealing door is automatically delayed opening and closing after top cover is closed, middle frame opens, and sealing door opens to preset gap, sealing door is automatically closed after being closed.The linkage control of this application realizes the whole process of odour isolation from throwing, storage to packing.User only needs manual operation when packing sealing and pulling out new bag, and the rest sealing action is automatically completed by monitoring component and drive assembly, and it is strong in convenience.

The utility model discloses a micro-pressure oxygen-enriched cabin environment temperature regulation system, belonging to the technical field of special environment control equipment, which includes a control center module, a temperature sensing module, an actuator module and a safety protection module. The control center module is electrically connected to the temperature sensing module. The safety protection module is installed on the actuator module, and the safety protection module and the actuator module are respectively electrically connected to the control center module. Under the conditions of maintaining micro-pressure (usually 1.1 to 1.3 atmospheres) and oxygen enrichment (oxygen concentration of 21% to 30%), it ensures that the temperature inside the cabin is stable within a comfortable range, and the temperature can be set arbitrarily, usually 20 to 26 °C. It automatically controls the start and stop of the environment temperature regulation system according to the change of temperature, realizes the linkage control of the micro-pressure oxygen-enriched cabin and the environment temperature regulation system, and is convenient to operate and use.

The invention relates to the technical field of fire extinguishing systems, and discloses a fire extinguishing control circuit and a fire extinguishing system.The output end of a smoke detection module is connected with a battery management system, and when it is detected that the current smoke concentration is larger than the preset smoke concentration, a smoke signal is output to the battery management system; the output end of the temperature sensing detection module is connected with the battery management system, and outputs a temperature signal to the battery management system when detecting that the current temperature is greater than a preset temperature; the smoke sensing detection module and the temperature sensing detection module are connected to a power supply branch, for supplying power to the fire extinguishing device, of the fire extinguishing power supply end of the battery management system; when the battery management system receives the smoke signal or the temperature signal, the fire extinguishing power supply end is controlled to supply power; when the smoke detection module detects that the current smoke concentration is greater than the preset smoke concentration, the power supply branch is switched on; and when the temperature sensing detection module detects that the current temperature is greater than the preset temperature, the power supply branch is switched on. The problem that fire fighting equipment in the prior art has the risk of false triggering is solved.

The invention provides a composite detection automatic fire extinguishing system and method suitable for a closed small space, the system comprises a fire extinguishing component, a nozzle, a composite detector, a signal communication component and a power supply module, the fire extinguishing component is connected with the nozzle, the fire extinguishing component is connected with the signal communication component through a signal line, and the composite detector is connected with the signal communication module. The method comprises the following steps: configuring a corresponding number of composite detection automatic fire extinguishing devices according to the number of electrical screen cabinets, and selecting signal communication according to the type of a detector and a communication protocol; fire characteristic data in each screen cabinet are monitored in real time by using a composite detector or a detector group, and the data are uploaded to a signal communication part in real time; the signal communication part compares the fire characteristic data with a set threshold value, and if the fire characteristic data exceeding the threshold value exist, an early warning signal is sent out; and if not, the signal communication component performs data processing and environmental parameter acquisition compensation.

The invention provides a flash control method and an external flash lamp device.The method is used for controlling the external flash lamp device to provide a supplementary light source for shooting of a mobile terminal, the external flash lamp device comprises a flash lamp module, the mobile terminal comprises a shooting module, and the method comprises the steps that a shooting trigger signal generated by user operation is received; generating a first flash control signal and a photographing control signal according to the photographing trigger signal; sending a first flash control signal to the flash lamp module through the first communication connection, so that the flash lamp module turns on light according to the first flash control signal; a photographing control signal is sent to a photographing module of the mobile terminal through the second communication connection, so that the mobile terminal executes a photographing action according to the photographing control signal, and the moment when the photographing control signal reaches the mobile terminal through the second communication connection is later than the moment when the first flash control signal reaches the flash lamp module through the first communication connection. It is ensured that the flash lamp module is in the light turn-on state when the mobile terminal photographs.

The invention discloses a metal plate butt welding device, which belongs to the technical field of welding and comprises a machine body, a first mounting frame, a second mounting frame and a welding gun. According to the device, positioning and clamping of the metal plates are achieved through the positioning roller and the abutting roller, and the second mounting frame can rotate around the positioning line to adapt to butt joint of the metal plates at different angles. The welding gun and the second mounting frame move synchronously through the linkage mechanism, it is guaranteed that the welding gun is located at the angular bisector position of the two metal plates all the time, and welding seam deviation is avoided. The device has the advantages of convenience in operation, high welding quality and the like, and is suitable for metal plate butt welding work.

The utility model discloses a professional frequency converter control circuit for driving a water pump. The frequency converter comprises a main control chip U1, a switching value input interface circuit, a relay output interface circuit, an RS485 communication interface circuit, a CAN communication interface circuit, a frequency converter PWM drive circuit, a PTC signal acquisition interface circuit, an analog quantity acquisition interface circuit, an analog quantity output interface circuit, a buffer circuit and a monitoring circuit. According to the utility model, a professional frequency converter control circuit is combined with a plurality of functional modules, and accurate control and optimal adjustment of a water pump driving system are realized through the 32-bit DSP main control chip. The system has the advantages of being improved in performance, reduced in cost, improved in cost performance, convenient to produce, clean, environmentally friendly and the like, so that the system has higher stability, reliability and economical efficiency, is suitable for various industrial application scenes, and brings more convenient, reliable and efficient use experience for users.

The utility model provides automatic fire cut exhaust system, relates to fire field, including water supply tank, the outer wall of water supply tank is fixedly connected with water supply motor, the outer wall of water supply tank is matched to be provided with acid mist purification tower, the outer wall of acid mist purification tower is provided with control cabinet, the outer wall of acid mist purification tower is fixedly connected with temperature control valve, in the utility model, when the workshop breaks out fire, this system can rely on the linkage mechanism of thermocouple and temperature control valve, and the exhaust motor power is automatically cut off and the valve is closed in the moment of detecting abnormal temperature, prevents the exhaust system from intensifying the fire spreading and smoke diffusion because of the chimney effect accurately, gains the precious time for personnel safety evacuation and fire rescue, reduces the security risk from the root, in addition, the system adopts the humanization design, only needs to connect the power and completes the basic parameter setting to put into operation, discards the complicated operation process, greatly promotes the use convenience, even if the non - professional personnel can also grasp the operation gist quickly.

The invention provides a high-temperature and high-pressure all-visible phase state and foam behavior characterization device. The device comprises a high-temperature-resistant and high-pressure-resistant visual observation cavity, an atomization spraying module, a volume adjusting module, a temperature control module, a pressure control module, a stirring and rotating module, a visual imaging module and a data acquisition and computer control module. The observation cavity is sealed through an upper flange and a lower flange to form a pressure-resistant visual cavity, and an upper visual window and a lower visual window are arranged to achieve double-view-angle imaging. The volume adjusting module is driven by a piston to change the effective volume in the cavity, and the temperature and the pressure are controlled in a closed-loop mode through a heating / circulating constant-temperature device and piston driving and / or a high-pressure pump. The method comprises the steps of device pretreatment, establishment of a high-pressure carbon dioxide environment and formula injection, volume / pressure scanning to obtain phase boundary parameters, stirring disturbance and visual recording, temperature switching repeated experiments, water adding disturbance and foam performance evaluation, and realization of phase-foam behavior coupling characterization.

This invention discloses a communication system and method for cross-domain data interaction based on the OCPP protocol stack. The system includes an OCPP cloud server and at least one pre-configured electric vehicle charging device for managing electric vehicle charging piles. The OCPP cloud server has functional modules running on the existing OCPP protocol stack and communicates with the electric vehicle charging device via data transmission commands. The communication system also includes at least one independent gateway, or the electric vehicle charging device integrates a gateway. The gateway is configured to: interpret standard data transmission commands from the OCPP cloud server and map their content to the local IoT network environment; simultaneously, it can also receive information and control commands from second-domain devices (not electric vehicle charging devices) and upload them to the OCPP cloud server via the same OCPP communication mechanism. Thus, by utilizing existing Electric Vehicle Charging Protocol (OCPP) cloud server resources, management and control of cross-domain IoT devices can be achieved.

The invention discloses an automatic dosing machine for medical intravenous medicine, and relates to the technical field of medical instruments and intelligent medical equipment. Comprising an addition execution module, a visual verification module and a central control unit, the assembly execution module comprises a base, a stand column, a lifting guide and transmission assembly and an upper end mounting seat, the stand column is vertically arranged on the base, the lifting guide and transmission assembly is arranged on the stand column in a lifting mode, and the upper end mounting seat is fixedly connected to the lifting guide and transmission assembly; the upper end mounting seat is provided with a needle inserting assembly, a pushing and injecting assembly and a supporting and positioning part, and the visual verification module comprises an image acquisition device which is used for acquiring identification information of a medicine or a container to be added with the medicine. According to the invention, the automatic intravenous medicine adding and dispensing system based on visual verification and central control is constructed, so that the defects of the prior art in the aspects of medicine safety, occupational exposure risk, adding and dispensing precision, operation efficiency and the like are systematically overcome.

The utility model discloses a safety protection system of a filament dividing machine, which comprises a safety protection structure arranged at the rotating part of the filament dividing machine; the filament separating machine start-stop control system is connected with the safety protection structure; the filament splitting machine start-stop control system comprises a start-stop control circuit and a proximity switch connected to the start-stop control circuit in parallel, and the proximity switch makes contact with the safety protection structure and is used for sensing the installation state of the safety protection structure; the start-stop control circuit comprises a frequency converter start-stop circuit and a scroll counting switch circuit which are connected in parallel between a null line and a live line, the frequency converter start-stop circuit is used for controlling the start-stop of the frequency converter of the wire dividing machine, and the scroll counting switch circuit is used for controlling the start-stop of the scroll of the wire dividing machine. The protection structure is connected with the equipment start-stop control system, so that linkage control is realized, when the safety protection structure is not normally locked, the equipment cannot be normally opened, and the purpose of safe operation is achieved.

A laser cutting conveying line belongs to the technical field of conveying devices, is used for conveying plate cutting, and comprises a frame, a waste conveying system, a positioning air cylinder, a conveying assembly, a guide assembly and a blocking assembly, and the waste conveying system is arranged in an inner cavity of the frame and used for conveying plate waste; the multiple positioning air cylinders are arranged above the frame in the front-back direction and used for restraining and guiding the plates in the front-back direction. According to the laser cutting device, the side edge constraint guiding system is matched with the end limiting structure, three-dimensional positioning control can be carried out on a plate, a track is corrected in real time, positioning errors are avoided, the cutting precision is improved, and efficient and stable operation of laser cutting operation is guaranteed; according to the automatic waste collecting and conveying system, waste generated by laser cutting of the plates is automatically conveyed, centralized treatment of the waste is achieved, the equipment cleaning and maintaining period is greatly shortened, and the links of plate conveying, cutting, waste collecting and the like are effectively integrated.

The invention belongs to the technical field of casting blank cutting, and particularly relates to a conveying roller device and method for solving adhesion of a casting blank after cutting. The lifting roller is arranged between the conveying roller and the flame cutting area, due to the fact that the lifting roller rotates by one circle, the highest point of the upper end of the lifting roller is higher than the upper end of the conveying roller, and the lowest point of the upper end of the lifting roller is lower than the upper end of the conveying roller. Therefore, one end of the cut casting blank can be lifted up through the lifting roller, displacement in the vertical direction of the casting blank to be cut is achieved, then the adhesion position is snapped through the lifting force of the lifting roller and the gravity of the casting blank, and the cutting efficiency and safety of the casting blank are effectively guaranteed. The device is simple in structure, can effectively solve the problem of casting blank adhesion, reduces the labor of workers, and avoids production accidents caused by untimely treatment.

The invention relates to the technical field of computers, and provides a digital atlas analysis device and method based on patent technology and standard fusion, the digital atlas analysis device comprises a device body, and the device body is provided with a digital atlas analysis system; a connecting part is connected to the device body, an accommodating cavity is formed in the connecting part, and a movable mobile phone connecting mechanism and a movable camera mechanism which are linked with each other are arranged in the accommodating cavity. When the connector is used, a data line and a mobile phone support do not need to be additionally arranged, a user can conveniently conduct electric connection and use the mobile phone body, people in front of the all-in-one computer and the mobile phone body can be monitored and recognized in real time, and whether the all-in-one computer and the mobile phone body are authorized users or not can be automatically judged; when the authorized user temporarily leaves, the screen of the all-in-one computer is automatically controlled to be turned off, and the mobile phone body is stored in the protection cavity for protection, so that others are effectively prevented from arbitrarily operating or taking away the mobile phone body, and the risks of information leakage and equipment loss are reduced.

The invention provides a refrigerating unit and a control method thereof, the refrigerating unit comprises a compressor, a condenser and an air cooler, the air cooler is a double-coil air cooler and comprises a refrigerating coil and a dehumidifying coil, an exhaust pipe of the compressor is divided into three branches, the three branches comprise a refrigerating exhaust pipeline, an inlet is provided with a refrigerating electromagnetic valve, and an outlet is provided with a one-way valve; wherein the condenser is connected; an inlet of the heating and dehumidifying exhaust pipeline is provided with a dehumidifying electromagnetic valve, an outlet of the heating and dehumidifying exhaust pipeline is connected to an inlet of the dehumidifying coil pipe, an outlet of the dehumidifying coil pipe is connected to an inlet of the heating and dehumidifying liquid return pipeline, and an outlet of the heating and dehumidifying liquid return pipeline is provided with a one-way valve; an inlet of the defrosting exhaust pipeline is provided with a defrosting electromagnetic valve, and an outlet is provided with a one-way valve; an outlet of the refrigeration exhaust pipeline and an outlet of the heating and dehumidifying liquid return pipeline are connected to an inlet of the liquid supply pipeline, an outlet of the liquid supply pipeline is connected to an inlet of the refrigeration coil, and an outlet of the refrigeration coil is connected to a first inlet of the compressor through an air return pipeline. According to the refrigerating unit provided by the invention, one set of refrigerating and condensing unit can meet the temperature and humidity double-index requirements, the combined operation of the refrigerating unit and a rotary dehumidifier is not needed, and the initial investment is reduced; a refrigerant defrosting method is adopted, the defects of high energy consumption and large warehouse temperature fluctuation caused by traditional electric defrosting are overcome, and energy-saving operation and low warehouse temperature fluctuation of the cold storage are achieved.

This application provides a controlled data sandbox management method based on an access connector, belonging to the field of data security. The method includes: receiving a data usage request initiated by a data user, the data usage request including at least a data asset identifier of the target data asset; authenticating the identity of the data user; if the identity authentication is successful, obtaining the data usage policy of the target data asset based on the data asset identifier; performing usage control verification on the data usage request according to the data usage policy; if the usage control verification is successful, creating a controlled data sandbox corresponding to the data usage request according to the data usage policy; and injecting controlled data access methods into the controlled data sandbox, wherein the target data asset itself does not enter the controlled data sandbox in the form of a copy, but is accessed within the controlled data sandbox through controlled data access methods.

The invention relates to an operation mode switching method and device for a control room in a nuclear power station. Comprising the steps of determining a current operation position based on positions of a first control switch and a second control switch in real time; if the current operation position is the backup panel, the nuclear power station is controlled through the backup panel in the nuclear power station; otherwise, for any operator station, acquiring user login information of non-security level control display equipment in the operator station and position information of security level control display equipment; if the position information is the same as the login position and the operation mode is a control mode, setting a security level control display device of the operator station to be in a non-locking state; and if the position information is the same as the login position and the operation mode is not the control mode, setting a security level control display device of the operator station to be in a locked state. By adopting the method, the operation authority linkage control of the security level control display equipment and the non-security level control display equipment can be realized, and the security of the nuclear power station is ensured.