155results about How to "Real-time protection" patented technology

An industrial control network security protection monitoring system performs real-time prevention and protection on industrial equipment of the industrial control network, and realizes network security protection monitoring through an acquisition layer, an analysis layer, a function layer and a display layer based on an integrated application platform, wherein the display layer mainly displays security trend, system topology and industrial control panorama; the acquisition layer comprises the acquisition of network data traffic and the recording of industrial control network operations; the analysis layer mainly comprises data processing, data association, data aggregation, data modeling, and integrated interfaces of other function modules; and the function layer mainly comprises monitoring audit, intrusion prevention, vulnerability mining, and data isolation. The system provided by the invention protects and protects industrial equipment in real time through the intelligent protectiontechnology of the industrial network control system, monitors and audits the data information of the entire industrial control network through the monitoring and auditing technology to prevent the industrial control network from being attacked externally, and can also have the vulnerability mining function of the industrial control network to escort the entire industrial control network security.

The present invention discloses a screen brightness adjusting device applied to an electronic device. The screen brightness adjusting device comprises a flash memory, in which a prescribed brightness ratio, i.e. a prescribed brightness value ratio of the screen to the outside light, is stored; a screen brightness detection module used for detecting the present screen brightness of the electronic device; a light sensing module used for detecting the present brightness of the outside light; and a brightness comparing module, which is connected to the flash memory, the screen brightness detection module and the light sensing module and is used for calculating the present brightness value ratio of the screen to the outside light to obtain the present brightness ratio and compare with the present brightness ratio with the prescribed brightness ratio. If the present brightness ratio is larger than the prescribed brightness ratio, the comparison result is submitted to the electronic device. In addition, the present invention discloses a method for adjusting the screen brightness of the electronic device.

The invention provides a tumbling risk assessment, a monitoring system and an assessment method on the basis of three nine-shaft motion sensors. According to the tumbling risk assessment, the monitoring system and the assessment method, the tumbling state detecting, the tumbling risk detecting and tumbling protecting device control are achieved. The monitoring system comprises an information collecting module, a wireless communication module and a date analyzing module. The three nine-shaft motion sensors are mainly used, two of the nine-shaft motion sensors are placed in two shoes, and another is placed on the wrest; original data of the accelerated speed, the angular speed and the angle are obtained through the three sensors, a Bluetooth module is used for transmitting a data signal, and the signal is transmitted to a data analyzing terminal. The tumbling state is detected by analysis on various data signals through the motion sensors, and the tumbling risk is assessed and fed back to a tester by the combination with the standard of a Tinetti assessing table. The invention further discloses a gait assessment method, according to the method, through various signal types such as the accelerated speed, the angular speed and the angle, modeling is conducted on human bodies, gait characteristics are extracted, and assessment is conducted with Tinetti.

The invention relates to a water cooling device, in particular to a water cooling device which is used for a converter power module and solves the problem that the water cooling of the converter power module is not maturely applied to the existing locomotive AC transmission systems. The water cooling device comprises a heat-exchanging wind-cooling device, a water pump, a power module quick joint, and an expansion water tank; the heat-exchanging wind-cooling device comprises a supporting box body which is internally fixed with a cooling fan and a radiator; the water inlet pipe joint of the radiator is connected with the water outlet of the water pump by the power module quick joint; the water outlet pipe joint of the radiator is connected with the water pump water inlet; the expansion water tank and the water distributor of the water inlet of the water pump are connected with each other by a water pipe; meanwhile, the expansion water tank is connected with the water distributor which is fixed on the supporting box body by pipelines. The water cooling device solves the heat dissipation and cooling problem of the power module in the converter, improves the efficiency of the power module, and can carry out real-time protection by a pressure sensor and a temperature sensor.

The invention discloses a multi-path IGBT junction temperature and thermal fatigue real-time monitoring system. The system is a reliability testing system which is realized based on FPGA and is suitable for the real-time monitoring of the junction temperature of IGBT. The system selects the voltage VGE during the short circuit of the grid and collector as the temperature sensitive parameter of the IGBT, During the cooling process, the temperature sensitive parameter is measured, and by means of linear fitting and a least square method, the relation of the junction temperature and time t is deduced, and then the junction temperature is deduced reversely. The system not only can monitor the junction temperature of a device to be monitored in real time, and can accelerate the failure process of a product by means of a PID self-calibration algorithm, thereby effectively shortening the experiment time and completing the IGBT thermal fatigue experiment at the end. On the basis, over-current, over-voltage, and over-temperature protection tasks are additionally provided, and by means of alarming and automatic shutdown, the IGBT device can be protected in real time, and the thermal fatigue monitoring task can be completed. The system can be expanded and improved in functions based on the actual needs, and the function of the IGBT junction temperature and thermal fatigue real-time monitoring system can be further enriched.

The invention discloses an automobile rearview mirror without a blind area. The automobile rearview mirror comprises protective covers, curved optical mirrors arranged in the protective cover, and a mirror regulating device driving the curved optical mirrors to rotate. The curved optical mirrors comprise a first mirror and a second mirror in hinge connection, the protective covers comprises a fixed cover and a movable cover matched with the fixed cover, the first mirror and the second mirror are arranged in the fixed cover and the movable cover respectively, the second mirror is connected with the movable cover, and the mirror regulating device is connected with the first mirror and the second mirror. The two curved optical mirrors are respectively controlled to rotate at different angles through the mirror regulating device so that an ideal automobile driving view angle can be obtained. Besides a basic view angle of an ordinary rearview mirror, an expanded outer side view angle of an automobile can also be obtained, so that the blind area is eliminated, and driving safety is improved. Meanwhile, the protective covers can provide real-time protection for the mirrors, and therefore, dust-prevention and rain-proof effects are achieved.

The invention relates to a multi-channel high-power klystron overcurrent real-time protection device with online self-checking function. The device comprises a klystron, a filament is arranged in the klystron, the two ends of the filament are connected to a filament transformer through a wire, the filament transformer is connected with a filament power supply through a wire, wires are respectively led out from the collector connecting terminal and the tube body connecting terminal of the klystron, the wire led out form the tube body connecting terminal is grounded after penetrating a hall sensor I , and the wire led out form the collector connecting terminal is grounded after penetrating a hall sensor II; one end of the filament is connected to the HVPS cathode through a current limiting resistor, the HVPS anode is grounded, and the output terminal is connected with a tommy bar through a wire; wires are respectively led out from the hall sensor I and the hall sensor II are connected to the respectively corresponding output terminals of the overcurrent protection circuit, and the signals of the hall sensors are input to the overcurrent protection circuit through wires. The invention works well in the 2.45G high-power low-hybrid wave system, can fully realize all the functions and has greatly enhanced reliability and stability at the same time.

The invention aims to overcome the defects of existing equipment control logic, and provides an intelligent fresh air and air conditioning linkage control management method. Fresh air and air conditioning selective intelligent management is realized by making full use of fresh air system and air conditioning linkage management logic, outdoor low-temperature air is maximally delivered into a machine room by indoor and outdoor temperature difference comparison and logic control, indoor hot air is exhausted out of the machine room by an exhaust system, the temperature of an indoor working environment is reduced by high heat ventilation effects, and a normal working environment is effectively provided for indoor devices on the premise of maximally saving energy. By the aid of the control logic, the energy-saving rate of the machine room is increased from 30% to 60%, more than half of energy can be annually saved for the machine room when each device is used in an online manner, long-time operation of an air conditioner is effectively reduced, and the operating life of the air conditioner is prolonged.

The invention discloses a method for realizing protection and recovery in an automatic switched optical network. M is configured in a control plane. After N protection groups, the method for realizing protection and recovery on the control plane comprises the steps of determining the connection type generating the warning variation according to the warning relative information obtained from a node; performing protection or recovery or replying or protection cancellation for the service of the connection according to the warning relative information and the connection type generating the warning variation. The invention also discloses a system for realizing protection and recovery in automatic switched optical network. Using the method and the system, whether the currently configured protective connection can provide protection for the service loaded on the failure work connection is detected, if so, protection is carried out, if not, recovery is carried out, so as to combine protection with recovery to shorten service intermittent disconnection time to be millisecond and to provide real-time and high-efficiency protection for the service.

The invention relates to an optical fiber grating anchor stress sensor, which comprises a force measuring pedestal and a first prague optical fiber grating which is arranged on the force measuring pedestal, wherein the first prague optical fiber grating is connected with an optical wavelength demodulator through optical fiber; the force measuring pedestal has a hollow structure and comprises a head part, a neck part and a shoulder part; a force transferring nut is arranged inside the force measuring pedestal; both the upper part and the lower part of the force transferring nut are a cylinder, and the middle part of the force transferring nut is a circular platform; the force transferring nut is matched with an inner cavity of the force measuring pedestal; the force transferring bevel on the outer edge of the circular platform on the force transferring nut and a force bearing bevel on the inner wall of the force measuring pedestal are contact surfaces; a fixed support and an adjustable support are arranged on the outer wall of the force measuring pedestal corresponding to the force bearing bevel on the inner wall of the force measuring pedestal; an adjusting plate for adjusting the position relative to the fixed support is arranged on the adjustable support; both ends of the first prague optical fiber grating are fixed on the adjusting plate and the fixed support respectively; and the part of the first prague optical fiber grating positioned between the adjusting plate and the fixed support is hung in the air. The optical fiber grating anchor stress sensor is used for online detection of the tensile and compressive stress of all the anchors and anchor cables.

The invention relates to a mobile information multi-layer network security audit system, which pertains to fields of mobile informatization and information security technology. The system includes mobile proxy server, security manager and security audit proxy module; subsystems of mobile proxy server comprises proxy module of access, processing and application security audit which are communicating with security manager. Comparing with conventional technique, the invention provides controllable multi-layer enterprise network security audit mechanism under mobile informatization scenarios, can implement definition, execution of security rules, security log and security alarm, and protects inner resource of the enterprise depending on the mechanism.

The invention discloses the dimming circuit of an electrodeless fluorescent lamp. The dimming circuit is connected with an electrodeless fluorescent lamp circuit. The electrodeless fluorescent lamp circuit comprises an active power factor corrector, a central processing unit, an electromagnetic inductor and a power take-off at least. The dimming circuit comprises a sawtooth generator used for generating sawtooth, a potentiometer having an adjustable resistance value and a voltage comparator which is connected with the potentiometer and also connected with the sawtooth generator. The potentiometer adjusts the resistance value to produce an adjustable voltage, and the voltage comparator compares the adjustable voltage with the sawtooth generated by the sawtooth generator to generate a square signal that changes linearly. The dimming circuit also comprises an optoelectronic isolator which is connected with the voltage comparator and also connected with the central processing unit and receives the square signal produced by the voltage comparator to produce a PWM signal so as to concoct the central processing unit. The dimming circuit increases the function of monitoring running conditions of a strip lamp and performing real-time protection and prolongs the service life.

The invention relates to an online setting calculation method for a protection setting value of a power distribution automation terminal. The method comprises the steps: writing a setting value application form through a GOMS and triggers a setting initial process; transmitting the application form information to a DMS system through an information interaction bus; determining an electrical topological relation of the model by the DMS system; analyzing the constant value application form according to the electrical topological relation to associate a 10kV transformer substation outgoing line switch and a bus; analyzing the feeder information of the constant value application form according to the electrical topological relation to form a protection diagram, and displaying the protection diagram on a WEB interface; intelligently judging switch attributes according to the electrical topological relation to form a calculation scheme; intelligently querying a power supply range and a powersupply path according to the electrical topological relation, and calculating a fixed value of the switch; correcting the switch protection constant value according to the electrical topology information in cooperation with upstream and downstream constant value configuration; setting a calculation result for online cross auditing, and synchronizing the calculation result with the GOMS system; and archiving, storing and comparing the constant value notice in the system, and establishing automatic setting calculation and overall management of the constant value.

The invention discloses a defense method aiming at SSL strip attack and based on historical information. The defense method includes: establishing detection rules, and creating configuration files of all safe sites browsed by a user through the detection rules, wherein each configuration file contains accurate using status of the corresponding site; defaulting that an attacker successfully realizes MITM (man in the middle), establishing a MITM detector, and using the configuration file and the detection rules, wherein once a page is tampered maliciously by the MITM, a system can recognize and inform the user of a network attack while stopping connection of the attacker; establishing a private data tracking module, inserting JavaScript code into a login page, and detecting whether a login request contains plaintext private information or not to completely eradicate leakage of private information. By detecting client requests and server response content, the user can be protected from the SSL strip attack, and certificate of the user can be protected from being stolen by illegal means, so that safety and reliability when the user accesses websites are improved.

The invention discloses air conditioning box temperature linear testing equipment which comprises a microprocessor and a power module. An open loop type servo motor drive module, a feedback type servo motor single-drive module and a stepping motor single-drive module are all connected with the microprocessor and are used for sending control signals to an actuator of a pattern air door or an actuator of a fresh air door; a feedback type servo motor duel-drive module and a stepping motor dual-drive module are both connected with the microprocessor and are used for sending control signals to an actuator of a single-temperature range temperature air door or an actuator of a dual-temperature range temperature air door; a left temperature air door actuator feedback voltage input module, a right temperature air door actuator feedback voltage input module and a pattern air door actuator feedback voltage input module or a fresh air door actuator feedback voltage input module are all used for outputting feedback voltage signals to the microprocessor. The air conditioning box temperature linear testing equipment can meet the control requirement of the air door of an air conditioning box, can also achieve the purpose of one machine for multiple purposes, and is better in generality and capable of effectively shortening the development period of the air conditioning box.

The invention relates to a method for quickly recovering a CDP system. The CDP system is interrupted temporarily, a monitoring volume change data bit map table sectionalized by set thresholds is maintained inside a CDP core driver module; after the CDP system is restarted next time, initialized copying is performed on only the region of variation of a monitoring path according to the change data bit map table maintained by the CDP core driver module. Compared with the prior art, the method for quickly recovering the CDP system is capable of greatly reducing the initialized copied regions, removing a large amount of redundant data and quickly recovering the CDP system.

The invention discloses a station-yard switching method of a shunting train protection (STP) system. The method comprises: establishing a communication channel between ground equipment of every two adjacent control zones, exchanging the adjoined part signal condition and the approach road condition of the two control zones, the ground cabinet of the control zone where a registered locomotive is located transmitting the signal condition of the adjoined areas of the two control zones to the locomotive when a transfer approach road is opened in front of the registered locomotive and informing the locomotive of performing station-yard switching in real time, switching to the control zone which the locomotive is about to enter, meanwhile, transmitting train set information of the locomotive to the corresponding ground cabinet through the communication channel, and the corresponding ground equipment directly taking over the control of the locomotive, without carrying out the process of registration, network access, and re-initialization of the train set information of the locomotive. The purpose of continuous control over the transfer operation of the locomotive is realized. The station-yard switching method of the STP system is of great significance in improving the control performance of STP systems.

The invention discloses an electric vehicle and a motor control system thereof. The motor control system comprises a driving module connected with the motor of the electric vehicle to drive the motor;and a main control module, wherein the main control module comprises a control chip and a programmable logic device, the programmable logic device is connected with the driving module and the controlchip is connected with the programmable logic device. Therefore, a hardware protection circuit independent of the control chip is arranged so that the fault detection and protection of the motor control system can be performed quickly in real time and quickly and the safety and the reliability of the motor control system can be improved.

The invention relates to a wearable-type airbag device used for rehabilitation training and protection of upper limbs. The device includes an airbag body, a wearing part and an air supply mechanism; the airbag body is used for sleeving the upper limb of one side of the human body, composed of a shoulder joint part, an arm part and a hand part which are connected in sequence, and internally provided with a pressure sensor; an inflating and deflating port is formed in the airbag body, and at least one detachable supporting rod is arranged on the inner side face of an elbow joint of the arm partof the airbag body; a wearing part is annular and is connected to the shoulder joint part and used for being worn on the human body from the armpit of the other side of the human body; the air supplymechanism is detachably connected to the inflating and deflating port. Compared with the prior art, the wearable-type airbag device has the advantages that an embedded air channel is formed, and air is supplied by the embedded air channel alone. By providing two training patterns, ROM rehabilitation training can be carried out under cooperation with a rehabilitation training model, the shoulder joint of a patient in a flaccid paralysis period can be effectively protected and prevented from being dislocated, and meanwhile recovery of muscle strength of the patient is facilitated.

The invention discloses a city integrated pipe passage's intelligent monitoring and alarming system based on internet. The system comprises a central intelligent management and control system, a data information network center, an integrated intelligent environment monitoring system, a security guarding system, and an intelligent inspection system. The central intelligent management and control system controls and manages the integrated intelligent environment monitoring system, the security guarding system, and the intelligent inspection system respectively through the data information network center. According to the invention, the design and the layout of the system are reasonable. With comprehensive functions, the safety coefficient of the system is also high enough to realize comprehensive detection and centralized management, therefore reducing the cost of the equipment and manual labor considerably. Through the virtual reality manner, visual management can be realized to the pipe passage in its operation period.

The invention discloses a computer software security encryption management system. The system comprises a security input unit; the output end of the security input unit is electrically connected with the input end of a security verification unit; and the output end of the security verification unit is electrically connected with the input end of a feedback unit. According to the computer software security encryption management system, a verification question, an unlocking password and a secondary password actually input by a user can be subjected to comparative analysis with set verification question standard value, unlocking password standard value and secondary password standard value, so that computer software can be subjected to security encryption protection, the phenomenon of computer software leakage is effectively avoided, and the security performance is good; when the security verification is not passed, a file locking module locks the computer software, and an alarm module performs synchronous caution, so that the management system can be remotely controlled, and the computer software can be protected in real time; and the computer software security encryption management system is perfecter.

The invention relates to a safety protection method of a gantry crane, strain sensors are at least arranged in five positions including the center on a load-bearing gantry girder, two positions between the center and two ends and vertical supporting positions at two ends of the lower end of a horizontal arm, strain signals outputted by the strain sensors correspond to strain born in the five positions, strain values of the strain sensors in the five positions output the acquired strain signals in a real-time manner, and the strain signals are converted to the strain by data conversion. When the strain signal epsilon outputted by the strain sensor which corresponds to the strain is not less than a certain fixed value 1, a system plays the role of limiting dynamic load; when the strain signal epsilon outputted by the strain sensor which corresponds to the strain is not less than a certain fixed value 2 and the fixed value 2 is larger than the certain fixed value 1, the system limits the motion of the crane; when the strain signal epsilon outputted by the strain sensor which corresponds to the strain is not less than a certain fixed value 3, a protection action actuating mechanism limits actions of the crane or stops the actions of the crane according to a safety protection control signal.

The invention relates to a fault detection and protection device of a lithium ion power supply system. The fault detection and protection device comprises an integrated fault management module, a battery fault acquisition / protection module, a battery connection control and air pressure detection module, an upper computer module, a charger fault diagnosis module and a fault display module, wherein the integrated fault management module is connected with each module; the charger fault diagnosis module and the integrated fault management module are provided with CAN (Controller Area Network) interface chips respectively; the charger fault diagnosis module is connected with the integrated fault management module in a CAN communication manner; the integrated fault management module is connected with the upper computer module by RS232 (Recommended Standard 232); the battery connection control and air pressure detection module is connected with the battery fault acquisition / protection module; and the battery fault acquisition / protection module is connected with the charger fault diagnosis module. The fault detection and protection device is a multi-stage fault diagnosis and protection device, protects a battery, ensures normal and coordinative running between modules of a power supply system of the battery, and improves the running safety and reliability of the lithium ion power supply system.

The invention provides a method for confirming a network communication object. A data sender is called a sender for short, and a data receiver is called a receiver for short. The method comprises the steps that when the sender transmits data to the receiver, the initial package, to be sent, of the sender is intercepted, equal-length encryption is carried out on the initial package or one or more fields in the initial package, and then the initial package is sent to the receiver; after the receiver receives the initial package, decryption is carried out on the encrypted initial package or one or more encrypted fields in the initial package, if the decryption succeeds, decrypted data are sent upwards to the protocol layer of a local computer, an if the decryption fails, the initial package is abandoned; the initial package comprises SeqNumber, AckNumber, data length and ACK control bit fields, and an ACK control bit is set to be 1. The encryption and the decryption are carried out on the two communication ends, and data transmission of each time is protected.

The invention discloses a fault protection device for monitoring the working condition of an ignition device of an engine, and aims at providing the fault protection device capable of effectively eliminating the interference of working circuits of the ignition device. The technical scheme of the fault protection device is as follows: in a data processing comparison control circuit, a sampling module is in series connection with a signal processing module and a data processing control module in proper sequence; the data processing control module is electrically connected to a display module and is electrically connected to a primary power supply end of the ignition device by a fault protection module; the sampling module performs signal sampling from a sampling interface of the ignition device; the signal processing module is used for carrying out compensation filtering on sampled signals and for feeding read current peak values into the data processing control module; and the data processing control module is used for carrying out data comparison, analysis and judgment on sampling frequency and / or the current peak values, for giving out a fault warning signal instruction to the display module, and meanwhile for controlling the fault protection module to disconnect a primary power supply of the ignition device, so that the device enters a fault locking state, and a starting switch loses efficacy.

The invention is applicable to battery protection, and provides a discharging current hardware protection circuit for a vehicle-mounted lithium battery pack of an electric vehicle. The discharging current hardware protection circuit comprises a signal sampling unit used for sampling the load current of the electric vehicle, and converting the sampling current into a sampling voltage to output; a detection unit used for outputting a high-level signal when the detected sampling voltage achieves a preset threshold value; and a hardware protection unit used for cutting off the connection between the lithium battery group and the vehicle load after the high-level signal is detected. According to the discharging current hardware protection circuit, when the lithium battery group of the vehicle is in short-circuit or overcurrent states, the hardware protection unit can response in time to automatically cut off the connection between the lithium battery group and the vehicle load; furthermore, due to the introduction of positive feedback to the detection unit, the output signal is relatively stable; in case that the detection unit determines that the lithium battery is in abnormal, the high level is output; even if the current fluctuation is not affected; the output signal is kept the same; and the output signal can be changed only by adopting software for unlocking.

The invention discloses a double filter plate on-line type spiral extruder. The double filter plate on-line type spiral extruder comprises a power device protection box and a supporting plate, the power device protection box is fixedly installed at the upper end of the supporting plate, and an electromotor is fixedly installed in the power device protection box; supporting legs are fixedly installed at the four corners of the lower end of the supporting plate, a heating barrel is fixedly installed at one end of the power device protection box; a screw rod is rotatably installed in the heatingbarrel, a first filter device is fixedly connected with the middle of the heating barrel in an inserted mode, and a second filter device is connected with the end, deviating from the power device protection box, of the heating barrel in an inserted mode; and a feeding hopper is fixedly installed at the upper end of the heating barrel, a stirring device is connected with the interior of the feedinghopper in a clamped mode, a second electromotor is fixedly installed at the bottom end of the stirring device, and a stirring gear is rotatably installed on the upper portion of the second electromotor. According to the double filter plate on-line type spiral extruder, it can be ensured that the extrusion quality and the molding rate are better in the using process through double filtration arrangement.

The invention provides a safety communication method. The method includes: a first drive layer of a transmitting end performs protocol type checking on data packets to be transmitted, determines protocol type of the data packets to be transmitted, and encrypts front one or multiple fields of the data packets and / or data components of the data packets according to the protocol type; the transmitting end transmits the encrypted data packets to a receiving end; a first drive layer of the receiving end performs protocol type checking on the data packets received, determines the protocol type of the data packets received, decrypts the front one or multiple fields of the data packets and / or the data components of the data packets according to the protocol type in response to the transmitting end, and discards the data packets if decrypting fails; a second drive layer of the receiving end verifies the data packets successfully decrypted and discards the data packets if verifying fails. The safety communication method has the advantages that network communication agent confirmation is achieved and network-transmitted information can be protected from breach.

The invention aims to provide a lithium iron phosphate battery protection plate. According to the lithium iron phosphate battery protection plate, one end of a discharge MOS tube is connected with thepositive electrodes of lithium iron phosphate batteries connected in series; one end of the charging MOS tube is connected with the other end of a discharging MOS tube, and the other end of the charging MOS tube is connected with the positive electrode of the output end of the system; one end of a current limiting module is connected with the common end of the charging MOS tube and the discharging MOS tube; the other end of the current limiting module is connected with an MCU main control unit; a pre-charging module is connected with the MCU main control unit; a current detection resistor isconnected in series between the negative electrodes of the lithium iron phosphate batteries and the negative electrode of the output end of the system, and the current detection resistor is connectedwith the MCU main control unit; a voltage sampling equalization module is connected with the lithium iron phosphate batteries connected in series; an AFE energy feedback unit is connected with the voltage sampling equalization module and the MCU main control unit. According to the invention, charging and discharging of the battery pack can be effectively monitored and protected in real time.