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398 results about "Instrument control" patented technology

Instrument control consists of connecting a desktop instrument to a computer and taking measurements.

Instrument gesture control method based on millimeter wave radar and related equipment

The invention provides an instrument gesture control method based on a millimeter wave radar and related equipment, and relates to the technical field of instrument intelligent control. The method comprises the steps of firstly obtaining a target reflection signal through a built-in millimeter wave radar, then identifying the signal to determine whether a target is a palm, and then identifying a target action according to a preset palm template library to obtain palm action information; then, a control instruction is determined by combining the information with an instrument control mapping library (storing a palm action and control instruction mapping relation), and finally, corresponding parts of the electric bicycle are controlled according to the instruction. According to the scheme, non-contact gesture control is achieved by means of the millimeter wave radar technology and a multi-layer feature recognition mechanism, the convenience and the intelligent level of interaction of the electric bicycle can be improved, and a more flexible control mode is provided for a user.
Owner:深圳哲轮科技有限公司

Intelligent medical rehabilitation physiotherapy instrument control system

The invention discloses an intelligent medical rehabilitation physiotherapy instrument control system, which relates to the technical field of medical instruments, and comprises the following steps: acquiring physiological data of a patient, the physiological data comprising electromyographic signals, heart rate and body temperature, and performing real-time processing on an edge end to obtain physiological features; the edge calculation unit uploads the physiological features to a cloud end, a preliminary state decision model is constructed at the cloud end according to the physiological features to judge the preliminary state of a patient, actual physiotherapy records are grouped according to the preliminary state of the patient, effective physiotherapy records are counted, and an initial physiotherapy parameter set quantum optimization physiotherapy parameter is generated; and inputting the quantum optimization physiotherapy parameters into a digital twin model for secondary simulation, generating a muscle state quantum vector, calculating a Hilbert space distance, carrying out collaborative optimization on the quantum optimization physiotherapy parameters, obtaining optimal physiotherapy parameters, returning the optimal physiotherapy parameters to an edge end, and starting physiotherapy. Through centralized processing of the cloud, the model can be dynamically updated to adapt to demand changes of different patients.
Owner:ZHEJIANG MEIBAIJIAN BIOTECHNOLOGY CO LTD

Reactor instrument control system equipment fault early warning method and related equipment

The invention discloses a reactor instrument control system equipment fault early warning method and related equipment, and relates to the technical field of reactor operation and maintenance, and the technical scheme is characterized in that the method comprises the following steps: obtaining operation parameters of target equipment of a reactor instrument control system in real time, and synchronously collecting historical operation data and historical fault data of the target equipment at the same time; constructing a machine learning analysis model, and training the machine learning analysis model by taking the historical operation data and the historical fault data as training samples; running parameters collected in real time are input into the trained machine learning analysis model, abnormal features representing the change trend and the deviation degree of the real-time parameters are output, a preset equipment abnormal feature library is matched based on the abnormal features, whether the target equipment has faults or not is judged, and a health degree index representing the health state of the target equipment is calculated; and if the fault judgment result is that the potential fault exists or the health degree index is lower than the preset health threshold value, generating a corresponding fault early warning signal and a health degree evaluation result.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Measuring instrument automatic calibration method and system based on big data

The invention discloses a measuring instrument automatic calibration method and system based on big data, and the method comprises the steps: obtaining the multi-dimensional operation data of a measuring instrument in real time through a sensor, and covering the equipment state and environment parameters; processing the data to generate an operation data set, and extracting a fluctuation characteristic value of the quantitative state change by adopting time sequence analysis; when the fluctuation characteristic value exceeds a preset threshold value, triggering depth characteristic decomposition to obtain deviation distribution information; on the basis of the information and in combination with historical records, the optimal calibration opportunity is judged through a machine learning model; and a calibration instruction is automatically generated and issued to the instrument control module to execute calibration. According to the method, the defects that traditional calibration depends on manpower and is not accurate in time are overcome, intelligent and automatic calibration based on the real state is achieved, the calibration precision and efficiency are remarkably improved, and the adaptability and robustness of the system in the complex environment are enhanced.
Owner:SHENZHEN SIRUIJINGDA PRECISION INSTR CO LTD

Physiotherapy instrument control system and method based on artificial intelligence

The invention discloses a physiotherapy instrument control system and method based on artificial intelligence, and relates to the technical field of intelligent medical treatment, and the method comprises the steps: collecting an electromyographic signal in real time, carrying out band-pass filtering and TK energy operator processing, and outputting a muscle activation feature vector; based on the muscle activation feature vectors, spatial-temporal features are extracted through a convolutional neural network, and a physiotherapy parameter combination is constructed; a PID controller is adopted to adjust the physical therapy parameter combination in real time, and optimized physical therapy parameters are output; performing electromagnetic thermal coupling simulation on the optimized physiotherapy parameters through finite element analysis to obtain a physiotherapy instrument control instruction; and updating the weight of the convolutional neural network by adopting a stochastic gradient descent algorithm according to the physiotherapy efficiency evaluation report, and outputting an optimization execution instruction. PID parameters are optimized through a quantum annealing algorithm, stimulation parameters are dynamically adjusted in combination with myoelectricity beta wave band phase locking, and treatment parameters and physiological response are synchronized.
Owner:ZHEJIANG MEIBAIJIAN BIOTECHNOLOGY CO LTD

Cataract surgery navigation control method based on multi-modal fusion

The invention relates to the technical field of intelligent medical treatment, and discloses a cataract surgery navigation control method based on multi-modal fusion, which comprises the following steps: carrying out lightweight preprocessing on an eye fundus image, ultrasonic probe data, a corneal topographic map and intraocular pressure parameters through an edge computing architecture, and constructing an efficient feature extraction network by adopting a knowledge distillation technology; self-adaptive feature fusion is realized based on an uncertainty quantification mechanism, real-time structure recognition is provided by utilizing an augmented reality technology, an intelligent navigation strategy is generated by pre-training a reinforcement learning model, an instrument control system with multilayer safety guarantee is established, and continuous optimization of the system is realized by adopting an online learning mechanism. According to the invention, the precision and safety of the operation are effectively improved, and an effective technical scheme is provided for intelligent navigation control of the cataract operation.
Owner:浣江实验室 +1

Instrument control simulation system and method and device for testing configuration logic

The invention provides an instrument control simulation system and a configuration logic test method and device.The method comprises the steps that first configuration logic and second configuration logic are obtained, the first configuration logic is used for indicating to output a first control instruction set to a simulation server under a preset working condition, and the second configuration logic is used for indicating to output a second control instruction set to the simulation server; the second configuration logic is used for indicating to output a second control instruction set to the simulation server under a preset working condition; loading the first configuration logic to the first controller, and loading the second configuration logic to the second controller; and operating the first controller and the second controller under a preset working condition to obtain a first test result output by the simulation server. The overall functionality and correctness of the instrument control system are verified to the maximum extent, the accuracy of a test result is improved, and then the safety of the instrument control system is improved.
Owner:STATE NUCLEAR POWER AUTOMATION SYST ENGCO

Nuclear power plant instrument control system control algorithm simulation device and simulation method thereof

The invention discloses a nuclear power plant instrument control system control algorithm simulation device and a simulation method thereof, and relates to the technical field of nuclear power plant instrument control software. The device comprises a user interface used for responding to user interaction operation, constructing a model structure of a control algorithm and receiving user input data as input data of the model structure; the code generation engine is used for analyzing the xml file corresponding to the model structure and obtaining source code implementation of a main operator of the model structure based on an analysis result; and the model entity is used for packaging and compiling the source code of the main operator to obtain an executable program of the model structure, executing the executable program based on the input data of the model structure to obtain a simulation result of the model structure, and sending the simulation result to the user interface for display. According to the device, the software verification process can get rid of dependence on embedded hardware equipment, and the software development and debugging efficiency is improved.
Owner:NUCLEAR POWER INSTITUTE OF CHINA +1

Vehicle-mounted automobile instrument control display system

The invention discloses a vehicle-mounted automobile instrument control display system, which relates to the field of instrument control display and is used for acquiring face, eye movement, grip strength and physiological data, identifying a driving state, acquiring road, weather and traffic target information, analyzing an operation intention, predicting path conflicts and dynamically adjusting an instrument interface according to risks. According to the system, the driver state and environment information are collected, behavior prediction is combined, operation intention recognition and risk early warning are achieved, the content of an instrument interface can be dynamically adjusted before danger occurs, multi-channel prompt intervention is conducted through voice and light, the driving safety is improved, and compared with the prior art, the system has the advantages of being high in practicability and easy to popularize. The vehicle-mounted instrument control system has the advantages of prospective early warning, interface self-adaption and personalized prompt, and the intelligent and situation-aware vehicle-mounted instrument control function is achieved.
Owner:SHENZHEN HAORUIYUN TECH CO LTD

Instrument control drawing information intelligent extraction method and system

The invention belongs to the technical field of computer vision and electronic engineering, and discloses an instrument control drawing information intelligent extraction method and system, and the method comprises the steps: detecting components in a drawing, outputting a component bounding box set Yv0, carrying out the instance segmentation of a text region in the drawing based on a Mask R-CNN model, generating a text mask set Rv0, and recognizing the text content. The method comprises the following steps: generating a text semantic set, extracting a connecting line skeleton through edge detection, morphological closed operation and direction filtering, executing iterative mask constraint optimization, obtaining an optimized detection result, establishing an association relationship between a component and a text, traversing intersection points and coverage points of the connecting line skeleton in a horizontal / vertical direction, and generating a component topological connection diagram; the system comprises a visual acquisition module, a multi-task detection module, a dynamic optimization module, an association reasoning module and an output module. According to the method, the accuracy of element recognition and correlation reasoning in the complex drawing can be improved, and meanwhile, the robustness and generalization ability of the system are kept.
Owner:CHINA NUCLEAR POWER OPERATION TECH CORP +2

Systems and methods of controlling instruments

Systems and methods of controlling instruments include first and second actuators configured to actuate a degree of freedom (DOF) in first and second directions using respective transmission mechanisms and a control unit. The control unit is configured to determine positions of the first and second actuators; determine an actuation command based on the positions of the first and second actuators, and a desired state of the DOF; determine respective actuation levels of the first and second actuators so as to maintain tensions in the transmission mechanisms above respective minimum tensions by: using a model based on the force or torque command, the minimum tensions, and the first and second actuator positions; and command actuation of the first and second actuators at the respective actuation levels. The model compensates for an external disturbance on the DOF and for dynamics of the first and second actuators.
Owner:INTUITIVE SURGICAL OPERATIONS INC

Device testing method and device, electronic equipment and storage medium

The invention relates to a device test method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a current instruction in an instrument control instruction set based on the instruction sending sequence information of an instrument control instruction set corresponding to a current test item of a to-be-tested device; based on the test operation type of the current instruction and the test operation type of a previous instruction of the current instruction, judging whether the current instruction and the previous instruction meet a preset parallel execution condition or not; the previous instruction is a control instruction of which the sending sequence is the previous order of the current instruction in the instrument control instruction set; and if the preset parallel execution condition is met, issuing the current instruction under the condition that the previous instruction is sent completely, so that the current instruction and the previous instruction are executed asynchronously and parallelly until execution response data of the instrument control instruction set is obtained. According to the technical scheme provided by the invention, the communication time consumption of instruction issuing and response receiving of software can be greatly reduced, and the instruction execution efficiency of the test instrument is improved, so that the test efficiency of a single device is improved.
Owner:STELIGHT INSTR CO LTD

Controlling software remote centers of motion for computer-assisted systems subject to motion limits

A computer-assisted system includes a repositionable structure configured to support an instrument and a control unit. The control unit is configured to: while a remote center of motion (RCM) is set at a first position, receive a command to move the repositionable structure with a commanded motion; determine whether driving the plurality of joints to move the repositionable structure in accordance with the commanded motion while maintaining the remote center of motion RCM at the first position would violate a limit of the repositionable structure; and, in response: determine an alternative motion of the plurality of joints based on the commanded motion and the first position, wherein driving the plurality of joints in accordance with the alternative motion would not violate the limit, and would move the RCM to a second position different from the first position, and drive the plurality of joints in accordance with the alternative motion.
Owner:INTUITIVE SURGICAL OPERATIONS INC

Industrial vehicle intelligent instrument control system and method based on multi-mode biological recognition

The invention discloses an industrial vehicle intelligent instrument control system and method based on multi-mode biological recognition, and the method comprises the following steps: S1, collecting fingerprint data of a driver, and carrying out the preprocessing; s2, fingerprint texture features are extracted, and weighted coding is carried out on local texture distribution and a global topological structure; s3, constructing an identity verification window, and performing bidirectional attention comparison on the fingerprint feature vector and the fingerprint template; s4, judging whether the identity verification is passed or not according to the similarity score, and if the verification is passed, triggering a buzzer or a voice broadcast device to generate control feedback; s5, starting the vehicle, awakening display, loading an instrument information page, and writing an identity verification result into a system buffer area; and S6, synchronizing an identity verification result to a mobile terminal APP or an applet platform through the Bluetooth MCU chip. According to the invention, industrial vehicle intelligent control based on fingerprint identification is realized, and the identity verification accuracy, the operation safety and the management efficiency are improved.
Owner:HEFEI SHINNY INSTR CONTROL TECH

System and method for controlling Fourier interference infrared spectral imaging remote sensing instrument

The invention provides a control system and method for a Fourier interference infrared spectral imaging remote sensing instrument, and relates to the technical field of infrared remote sensing, and the system comprises a main control module, a sub-control module, a control interface, an execution element and a spectral imaging display system. And the main control module is used for controlling the sub-control module to control the execution element through the control interface according to a logic process set by a program so as to obtain Fourier interference infrared spectral imaging remote sensing data of an observation target, and completing display and control functions of a human-computer interaction interface through the spectral imaging display system. According to the invention, centralized control management of an optical-mechanical-electrical-thermal whole system of an instrument is realized, automatic work and operation of a remote sensing instrument system are realized, and rapid acquisition and analysis of Fourier interference infrared spectrum imaging are realized by using an area array detector.
Owner:SUZHOU INST OF TECH PHYSICS OF SCI & TECH OF CHINA +1

Secondary instrument control in a computer-assisted teleoperated system

Systems and methods for a system include a manipulator configured to support an instrument moveable within an instrument workspace, the instrument having an instrument frame of reference; an input device configured to receive a movement command from an operator; and a control system. The control system is configured to determine a difference between an orientation of the instrument and an orientation of a field of view of the instrument workspace; adjust, based on the difference, a mapping to apply to the movement command to generate an implementable movement command for the instrument; further adjust the mapping based on an ergonomic offset to provide for a difference between an orientation of the input device and the orientation of the instrument; map, based on the adjusted mapping, the movement command to a motion of the instrument in the instrument frame of reference; and cause the instrument to move according to the motion.
Owner:INTUITIVE SURGICAL OPERATIONS INC

Surgical robot master hand control device and method and doctor console

The invention provides a surgical robot master hand control device and method and a doctor console, and the device comprises a mode switching unit which is used for automatically switching a surgical robot from an instrument control mode to an adjustment mode when it is detected that a master hand collides with surrounding objects; the pose acquisition unit is used for acquiring pose information when the master hand is collided after the surgical robot enters the adjusting mode; the target position determining unit is used for determining the target position of the master hand; the movement control unit is used for controlling the master manipulator to move from the collision position to the target position, and the posture of the master manipulator is kept unchanged in the movement process; the mode switching unit is used for automatically switching the surgical robot from the adjusting mode to the instrument control mode after it is detected that the master hand reaches the target position. According to the master manipulator control device of the surgical robot, automatic switching of the surgical robot between the instrument control mode and the adjustment mode can be achieved, the continuity of master and slave instrument control can be guaranteed, and the user experience is improved.
Owner:WUHAN UNITED IMAGING HEALTHCARE SURGICAL TECH CO LTD

Parameter testing method and device for hemispherical resonator

The invention relates to the technical field of inertial instrument control, and provides a hemispherical resonator parameter test method and equipment, and the method comprises the steps: generating and detecting a natural vibration signal of a hemispherical resonator through an excitation detection module; carrying out assembly error iterative calibration, collecting a vibration signal of the hemispherical resonator in assembly error calibration, and carrying out processing and mathematical operation to obtain a calibration error parameter; changing the vibration state of the hemispherical resonator device through the calibrated excitation detection module, collecting a vibration signal of the hemispherical resonator device, and carrying out digital processing on the vibration signal of the hemispherical resonator device to obtain a control vibration signal; and performing recursive least square calculation on the control vibration signal to obtain a performance index parameter of the hemispherical resonator. Performance index parameters of the hemispherical resonator are detected through an automatic testing means, the comprehensive performance of the hemispherical resonator is evaluated, the production efficiency of the hemispherical resonator is improved, and the production cost is reduced.
Owner:CHINA STATE SHIPBUILDING CORP NO 707 RES INST

Vehicle display instrument control system

The invention relates to the technical field of intelligent cabins and functional safety, in particular to a vehicle display instrument control system, which comprises a prospective sensing unit, a central processing unit, a central processing unit and a central processing unit, and is characterized in that the prospective sensing unit is used for generating multi-dimensional cabin system state data; the risk prediction unit is used for calculating a system risk potential index; the scheduling decision-making unit is used for comparing and analyzing the system risk potential index and a preset risk threshold value; when the system risk potential index exceeds a risk threshold value, determining that the system enters a collaborative mode and calculating a collaborative distribution factor; when the system risk potential index does not exceed the risk threshold value, determining that the system maintains an isolation mode; the rendering adjustment unit is used for generating an adjusted target rendering load index of the infotainment domain; the closed-loop optimization unit is used for carrying out self-adaptive correction on the weight of the risk state quantitative prediction model; the hidden danger of safety function display delay caused by resource competition of the graphic processing unit is effectively solved, and the function safety and reliability of the intelligent cabin are greatly improved.
Owner:NINGBO GUORUI NEW ENERGY TECH CO LTD

DCS health management platform based on agile development and general-branch architecture

The invention belongs to the technical field of nuclear power DCS health management, and aims to provide a DCS health management platform for nuclear power plant DCS operation and maintenance business application. The invention discloses a DCS (Distributed Control System) health management platform based on agile development and a general-branch architecture, which comprises a display layer, a business application layer, a model and service layer, an operation and maintenance deployment layer and an infrastructure layer, and is characterized in that intelligent operation and maintenance management, software and hardware state remote monitoring and service life prediction of a nuclear power plant DCS are realized through the business application layer; and a dynamic logic deduction and fault tracing mechanism is constructed, full-process digital operation management and control, overall planning of a maintenance plan, authority auditing and intelligent guiding are carried out, and a full-life-cycle data system is established. According to the invention, DCS operation and maintenance service application is provided for the nuclear power plant, the reliability management of the DCS of the nuclear power plant and the risk analysis level of an instrument control system can be improved, and the probability of unexpected unit operation events caused by the DCS is reduced.
Owner:CHINA NUCLEAR POWER OPERATION TECH CORP

Method and device for determining reliability requirement of instrument control system of nuclear power plant

The invention discloses a method and a device for determining reliability requirements of an instrument control system of a nuclear power plant. The method comprises the following steps: identifying DEC-A working conditions and analyzing functional requirements of the instrument control system for coping with the DEC-A working conditions; performing top layer design on the instrument control system coping with the DEC-A working condition based on the functional requirements, and determining a top layer design scheme; carrying out detailed design on the instrument control system coping with the DEC-A working condition based on the top-layer design scheme, and determining an instrument control equipment list coping with the DEC-A working condition; and providing a reliability requirement for the instrument control equipment in the instrument control equipment list. Based on the method for determining the reliability requirement of the instrument control system coping with the DEC-A working condition, the economical efficiency and safety of a nuclear power plant can be guaranteed, and support can be provided for design of a new reactor type instrument control system.
Owner:CHINA NUCLEAR POWER ENGINEERING CO LTD

Multi-stage cascade semantic analysis framework for kernel security level control code generation tool

The invention discloses a multi-stage cascade semantic analysis framework of a nuclear security level control code generation tool, which comprises an input layer, an analysis module layer, an error processing layer and an output layer, and is characterized in that the input layer is used for receiving and preprocessing a control model xml file, verifying a file format and preliminarily checking grammar; the analysis module layer is used for analyzing post grammar, namespace, type, clock, causal relationship and initialized semantic analysis tasks of the file after receiving the analysis request to obtain analysis results; the error processing layer is used for collecting, classifying, positioning and report generating various error information appearing in the analysis module layer; and the output layer is used for generating and outputting a standardized analysis report and an optimization suggestion. And a pipelined cascade structure is adopted, so that efficient semantic analysis is realized. Through an innovative error processing mechanism and an optimization strategy, the analysis efficiency and accuracy are remarkably improved, and a reliable guarantee is provided for software development of a digital instrument control system of the nuclear power station.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

A control method, device and system of a pathological section scanner

The application discloses a pathological section scanning instrument control method, device and system, and the method comprises the following steps: receiving a control instruction sent by diagnostic software; after analyzing the control instruction, controlling the pathological section scanning instrument to execute an operation matched with the control instruction; and sending an execution result of the pathological section scanning instrument to the diagnostic software. The diagnostic software sends a control instruction to the scanning software, thereby indirectly controlling the operation of the scanning instrument, and the function of the scanning instrument can be effectively utilized, and the workload and technical difficulty of developing a scanning function by the diagnostic software are greatly simplified.
Owner:HEIDSTAR (XIAMEN) CO LTD

Intelligent development platform for TFT liquid crystal instrument of two-wheeled vehicle

The invention discloses a two-wheeled vehicle TFT liquid crystal instrument intelligent development platform which comprises an embedded development platform connected with a supply end and a user end at the same time, and the platform is further in interactive connection with an internet open platform. The platform is composed of a plurality of independently managed function module sets, and the function modules comprise code management modules. The system comprises a vehicle body protocol automatic analysis module, an embedded instrument operating system OTO, a code AI automatic generation module, an instrument UE editor module, an instrument U I editor module, an instrument analog simulation and controller module, a compiling and simulation debugging module, an instrument control enriching module and a management service system module. The system comprises an OTA upgrade maintenance module, a software upgrade push module, an advertisement push module and a dial shopping mall.
Owner:GUANGDONG ZHENGXIN INTELLIGENT MICROELECTRONICS CO LTD

Control system and control method for manual and automatic working condition switching of commercial vehicle

The invention discloses a control system and control method for manual and automatic working condition switching of a commercial vehicle, and belongs to the technical field of commercial vehicles. The control system comprises an E / P switch, a vehicle-mounted TBOX, a VCU controller, a TCU controller and an instrument which are electrically connected in sequence; m preset application software packages are installed on the gearbox; each preset application software package corresponds to one working condition and calibration; during working, the control system executes the following steps that the vehicle-mounted TBOX conducts working condition recognition and sends the recognized working condition to the VCU controller; when the TBOX cannot carry out working condition identification, an instrument control key is manually controlled to carry out working condition selection, and the instrument control key sends the identified working condition to the VCU controller; and the VCU controller sends the received working condition to the TCU controller for mode execution. Switching of different working conditions is achieved through TBOX automatic identification or manual switching, corresponding working conditions are executed, and the method is suitable for various vehicle using scenes.
Owner:BEIJING FOTONDAIMLER AUTOMOTIVE

Tension compensation system, robotically controlled medical device, instrument control module and non-transitory computer readable medium

A tension compensation system for a robotically controlled medical device may include an instrument controller configured to operably connect to the robotically controlled medical device to provide tension to one or more actuation cables of the robotically controlled medical device. The system may include an instrument control module configured to control the instrument controller to provide a compensating tension to at least one of the one or more actuation cables to compensate for elongation of the at least one of the one or more actuation cables based on actuation data associated with the at least one of the one or more actuation cables.
Owner:COLUBRISMX INC

Reactor shutdown method and system

The invention relates to a reactor shutdown method and system, and the method comprises the steps: a reactor protection system receives a monitoring signal and carries out the preprocessing of the monitoring signal, and obtains a preprocessing signal; the reactor protection system is designed by adopting a plurality of safety sequences; the reactor protection system judges whether an emergency shutdown condition is met based on the pre-processing signal; if yes, the reactor protection system outputs a local shutdown signal; if not, not outputting the local shutdown signal; the control rod shutdown subsystem receives the local shutdown signal and cuts off a power supply of a control rod driving system according to the local shutdown signal; and the shutdown rod shutdown subsystem receives the local shutdown signal and cuts off a power supply of the shutdown rod driving system according to the local shutdown signal. According to the invention, the emergency shutdown of the reactor can be rapidly and effectively realized under the accident condition, the influence of common cause failure on the shutdown function can be effectively avoided, and a diversified instrument control system does not need to be designed to cope with the influence of the common cause failure of the reactor protection system.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +1

A stress monitoring method suitable for special-shaped wind tunnel pressure shell

A stress monitoring method suitable for a special-shaped wind tunnel pressure shell belongs to the field of stress analysis and testing technology. It is to solve the problem of safety in the operation and use of special-shaped wind tunnels. The present invention establishes a finite element simulation model of the special-shaped wind tunnel pressure shell based on the structure of the special-shaped wind tunnel pressure shell, performs static structural calculations, obtains finite element calculation results of the special-shaped wind tunnel pressure shell, selects stress monitoring points, and marks stress monitoring points at corresponding positions of the special-shaped wind tunnel pressure shell; welds and installs strain gauges on the stress monitoring points marked on the special-shaped wind tunnel pressure shell, connects the strain gauges to the collection box, and connects the collection box to the control box of the strain data acquisition instrument. During the operation of the wind tunnel, the strain data acquisition instrument collects the strain measurement values of the strain gauges and converts them into stress values of the stress monitoring points; the strain data acquisition instrument control box is connected to the host computer via Ethernet, and the host computer monitors the stress values in real time. The monitoring of the present invention is accurate.
Owner:AVIC SHENYANG AERODYNAMICS RES INST

Vehicle-mounted instrument device and duplex vehicle-mounted instrument

The utility model provides a vehicle-mounted instrument device and a duplex vehicle-mounted instrument.The vehicle-mounted instrument device comprises a protective surface cover, an instrument display assembly, a central control display assembly, heat conduction paste, a heat conduction cover and screws, the instrument display assembly comprises a vehicle speed instrument display screen and a vehicle speed instrument control panel, and the central control display assembly comprises a central control display screen and a central control control panel; the heat conduction paste is arranged in the heat dissipation area of the vehicle speed instrument control panel and the heat dissipation area of the center control panel respectively, and the heat conduction paste abuts against the heat conduction cover. When the vehicle-mounted instrument device works, heat generated by the vehicle speed instrument control panel and the central control control panel is transmitted to the heat conduction cover through the heat conduction paste so as to achieve a good heat dissipation effect, when the instrument display assembly or the central control display assembly is replaced, only the first screws or the second screws need to be unscrewed and removed, replacement and replacement operation can be carried out, and replacement is convenient. And the thickness of the heat conduction cover in the overall thickness of the vehicle-mounted instrument device is relatively small, so that the device is relatively light in overall structure and relatively good in disassembly and assembly convenience.
Owner:HUIZHOU YUNHAOTONG TECH CO LTD