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30results about How to "Status judgment is accurate" patented technology

Vision auxiliary device and method for automatic landing of unmanned aerial vehicle

The invention discloses a vision auxiliary device and method for automatic landing of an unmanned aerial vehicle, and relates to the field of unmanned aerial vehicles. The problems that according to an existing vision auxiliary device which acquires and recognizes runways and the horizon through an airborne photographing device so as to sense the landing posture of the unmanned aerial vehicle, due to the lack of a multi-scale analysis mechanism, the landing requirement cannot be easily met, the posture and position calibration effect is poor, and deep prediction of the movement behavior of the unmanned aerial vehicle lacks are solved. The vision auxiliary device comprises a two-shaft rotary table, a rotary table motor, a power module, a single-view fixed-focus camera, a vision auxiliary information processing module and an information storage module. The vision auxiliary information processing module comprises a landing track re-planning module, a data comparator, an information filter, a computer vision processor based on image control, a computer vision processor based on position control, a first feedback correction device, a second feedback correction device, an information fusion parameter extractor and an RS485 communication interface. The vision auxiliary device is simple in structure, low in power consumption, high in efficiency and good in compatibility.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Main transformer intelligent state monitoring device and method based on multi-source data

The invention discloses a main transformer intelligent state monitoring device and method based on multi-source data. The monitoring device comprises an edge Internet of Things agent device, and an insulation state monitoring network, a component monitoring network, a comprehensive state monitoring network and an operation condition monitoring network which are in communication connection with theedge Internet of Things agent device. Every two of the insulation state monitoring network, the component monitoring network, the comprehensive state monitoring network and the operation condition monitoring network are in linkage. The monitoring method comprises the following steps that when any one of the insulation state monitoring network, the component monitoring network, the comprehensive state monitoring network and the operation condition monitoring network monitors an abnormal signal, the monitoring network with a linkage relationship is switched from a conventional monitoring mode to an intensive care mode, and monitoring data are acquired from all the monitoring networks to perform comprehensive abnormality analysis. Comprehensive analysis of data of multiple types of online monitoring devices can be realized, and the accuracy of transformer state judgment is improved.
Owner:STATE GRID HUNAN ELECTRIC POWER +2

Method, system and equipment for adjusting electronic control brake gain of automobiles, and storage medium

The invention provides a method, a system and equipment for adjusting electronic control brake gain of automobiles, and a storage medium. The method includes monitoring fatigue states of drivers and determining whether the drivers are in the fatigue states or not in each measurement period according to relations between fatigue measurement indexes of the drivers and preset fatigue thresholds; transmitting driving confirmation instructions to the drivers if the fact that the drivers are in the fatigue states is determined; confirming that the drivers are in the fatigue states if driving confirmation information of the drivers is not received, determining current fatigue degree grades of the drivers according to current fatigue judgment accuracy values and determining the current electroniccontrol brake gain according to preset association relations among brake gain, the fatigue degree grades and automobile speeds. According to the scheme, the method, the system, the equipment and the storage medium have the advantages that the electronic brake gain can be determined according to states of the drivers, and accordingly the problem of possible increase of collision risks due to the fact that electronic control brake auxiliary functions are used under the condition of poor states of existing drivers can be solved.
Owner:AIWAYS AUTOMOBILE CO LTD

Attention training system and method based on electroencephalogram and motion state feedback

The invention, which relates to the field of attention training systems, discloses an attention training system and method based on electroencephalogram and motion state feedback. The attention training system comprises a signal acquisition module, a signal receiving module, a processing and analyzing module, an instruction feedback module and an application program module. The signal acquisitionmodule is used for detecting an electroencephalogram signal and collecting a motion state; the signal receiving module is used for transmitting the collected signal to the processing and analyzing module; the processing and analyzing module is used for amplifying the collected signal, filtering the amplified signal, carrying out frequency domain signal conversion, and analyzing the signal to generate an analysis result; the instruction feedback module is used for receiving the signal from the processing and analyzing module and generating an instruction to the application program module, the input terminal of the instruction feedback module is connected with the output terminal of the processing and analyzing module, and the output terminal of the instruction feedback module is connected with the program application module; and the application program module is used for processing, carrying out statistics on and summarizing the collected data. And attention defects of inattention, hyperactivity and the like are effectively overcome.
Owner:XIAMEN UNIV

Lock state reminding device

The invention discloses a lock state reminding device which comprises a clutch assembly, a left optocoupler, a right optocoupler, a right optocoupler swing plate assembly and a left optocoupler swing plate assembly. The clutch assembly comprises a rotating clutch wheel and a sliding block guide base. The rotating clutch wheel is rotatably arranged on the periphery of the outer side of the sliding block guide base in a sleeving mode. The distance from the outer side wall of the rotating clutch wheel to the circle center of the sliding block guide base is gradually decreased. The left optocoupler and the left optocoupler swing plate assembly are arranged on the left side of the clutch assembly, the right end of the left optocoupler swing plate assembly makes contact with the outer side wall of the rotating clutch wheel, and the left optocoupler swing plate assembly can be rotated in and out of the left optocoupler. The right optocoupler and the right optocoupler swing plate assembly are arranged on the right side of the clutch assembly, the left end of the right optocoupler swing plate assembly makes contact with the outer side wall of the rotating clutch wheel, and the right optocoupler swing plate assembly can be rotated in and out of the right optocoupler. The lock state reminding device is simple and compact in structure and can carry out state adjustment accurately in time.
Owner:NANJING EASTHOUSE ELECTRONICS TECH

Sliding cover type terminal, sliding cover state detection method and device and storage medium

The invention relates to a sliding cover type terminal, a sliding cover state detection method and device and a storage medium. The sliding cover type terminal comprises an upper sliding cover and a lower sliding cover which are connected through a sliding rail. A first magnet and a second magnet are arranged in the upper sliding cover, the first magnet and the second magnet are arranged at a preset interval in the sliding direction of the upper / lower sliding cover, the first magnet and the second magnet have the same magnetic pole direction, a Hall sensor and a processor are arranged in the lower sliding cover, the Hall sensor is electrically connected with the processor, when the sliding cover is in a sliding open state, the first magnet and the second magnet are both located on one sideof the Hall sensor, and when the sliding cover is in a closed state, the first magnet and the second magnet are both located on the other side of the Hall sensor. According to the invention, accuratestate judgment of the sliding cover state can be realized, and the sliding cover state event can be output in time in the middle position of the sliding process, thereby facilitating quick start of subsequent control logic.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Tower type pumping unit encoder detecting system

The invention discloses a tower type pumping unit encoder detecting system. The tower type pumping unit encoder detecting system comprises a PLC, a touch screen controller, a power supply and a cable, wherein the cable is connected with a pumping unit encoder. Four paths of high-speed acquisition ports are arranged on the PLC, connected with the cable of the pumping unit encoder, and used for acquiring pulse data of the A phase, the B phase and the Z phase of the encoder, and the PLC is communicated with the touch screen controller through an industrial data bus. Compared with an existing detecting device, the tower type pumping unit encoder detecting system is portable in design, interfaces are customized, the plug and play function is achieved, a large amount of disassembly, assembly and aloft work is avoided, an instrument display interface is simple, a conclusion can be directly acquired through one-button operation, all analysis, calculation and judgment are completed by professional software, the requirement for quality of operation staff is low, detecting speed is high, state judgment is accurate, and due to specific functions, the tower type pumping unit encoder detecting system is suitable for encoder detection in the whole production and debugging processes of a tower type pumping unit control system and convenient and quick to use.
Owner:CHENGDU JINLIN IND MFG

Frequency-stabilized oscillatory type infrared positioning-based pattern recognizing and reminding system for signal lamps

The invention discloses a frequency-stabilized oscillatory type infrared positioning-based pattern recognizing and reminding system for signal lamps. The system comprises a power supply module, a reminding module, a central control module and a camera, wherein the reminding module, the central control module and the camera are connected with the power supply module. The reminding module and the camera are connected with the central control module. The central control module comprises a positioning module, a pattern recognizing module connected with the positioning module, and a speed sensing module connected with the pattern recognizing module. The system is characterized in that the positioning module is composed of a frequency-stabilized oscillation module, an infrared receiving circuit, a constant-current infrared transmitting circuit connected with the frequency-stabilized oscillation module, a single-chip microcomputer connected with the infrared receiving circuit, a distance threshold storage module and a triggering module, wherein the distance threshold storage module and the triggering module are connected with the single-chip microcomputer. The constant-current infrared transmitting circuit is controlled by the frequency-stabilized oscillation module. Therefore, infrared signals can be stably radiated by the constant-current infrared transmitting circuit, so that the stability of the system is improved.
Owner:盐城恒久市政工程有限公司

Method and system for judging clockwise and counterclockwise wind of fan

The method comprises the following steps: respectively conducting lower bridge power switches of an A phase, a B phase and a C phase, acquiring voltage differences of the A phase, the B phase and the C phase by collecting drain electrodes and source electrodes of the power switches, and obtaining a current; obtaining a motor rotor angle theta1 and a current peak value K according to the current magnitude; obtaining a motor power generation constant and a back electromotive force constant, and calculating to obtain an estimated angular frequency w1 according to the motor power generation constant and the back electromotive force constant; determining the sampling interval time of turning on the A-phase, B-phase and C-phase lower bridge power switches again through the pre-estimated angular frequency w1; when the sampling interval time is up, switching on the A-phase lower bridge power switch, the B-phase lower bridge power switch and the C-phase lower bridge power switch again, obtaining the voltage difference of the A-phase lower bridge power switch, the B-phase lower bridge power switch and the C-phase lower bridge power switch, obtaining the current angle theta2 through calculation, and obtaining the forward and reverse wind direction according to the relation between the theta1, the theta2 and the sampling time accurate estimation angular frequency w and the theta1 and the theta2. The method avoids an external circuit, reduces hardware cost, and simplifies a motor control circuit.
Owner:JIANGSU UNIV OF SCI & TECH

Well cover sensing switch device

InactiveCN102677984ARealize centralized monitoring and managementRealize illegal drillingNon-mechanical controlsHall elementEngineering
The invention discloses a well cover sensing switch device, which comprises a well frame and a well cover. The well cover is arranged on the well frame; a clamping latch with a magnet is fixedly arranged on the well cover; an electric control lock matched with the clamping latch is arranged on an inner wall of a well; and a Hall element device is arranged in the electric control lock. With the adoption of the well cover sensing switch device, the centralized monitoring management of pipe well resources can be realized and an alarm function is also realized when the well is illegally uncovered and the well cover is stolen. The sensing Hall element device is arranged inside the electric control lock, the sensing sensitivity is high and the state judgment is correct. In addition, no any one part of the electric control lock control part is positioned on the well cover, so that the problem of waterproofing and sand-proofing is radically solved, and the well cover sensing switch device has a good anti-theft anti-destroy function.
Owner:开平百事通计算机工程有限公司

Sliding cover terminal, sliding cover state detection method, device and storage medium

The present disclosure relates to a sliding cover terminal, a sliding cover state detection method, a device and a storage medium. The upper sliding cover of the sliding cover terminal is provided with a magnet; the sliding cover is provided with a first Hall sensor, a second The Hall sensor and the processor, the first Hall sensor is connected to the processor through the first electrical connection, the second Hall sensor is connected to the processor through the second electrical connection, the first electrical connection and / or the second electrical connection A delay circuit is set in the permanent connection; when the slide cover is opened, the two Hall sensors are located on the side of the direction where the first magnetic pole of the magnet is located; when the slide cover is closed, the two Hall sensors are located on the side of the magnet. The side of the direction of the second magnetic pole. This disclosure uses a delay circuit in the electrical connection, so that even if the user's sliding speed is very fast, the output level of the Hall sensor can be delayed and then output, and the level change in the middle stage will not be unable to be monitored. situation arises.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Automobile electronic control brake gain adjustment method, system, device and storage medium

The invention provides a method, a system and equipment for adjusting electronic control brake gain of automobiles, and a storage medium. The method includes monitoring fatigue states of drivers and determining whether the drivers are in the fatigue states or not in each measurement period according to relations between fatigue measurement indexes of the drivers and preset fatigue thresholds; transmitting driving confirmation instructions to the drivers if the fact that the drivers are in the fatigue states is determined; confirming that the drivers are in the fatigue states if driving confirmation information of the drivers is not received, determining current fatigue degree grades of the drivers according to current fatigue judgment accuracy values and determining the current electroniccontrol brake gain according to preset association relations among brake gain, the fatigue degree grades and automobile speeds. According to the scheme, the method, the system, the equipment and the storage medium have the advantages that the electronic brake gain can be determined according to states of the drivers, and accordingly the problem of possible increase of collision risks due to the fact that electronic control brake auxiliary functions are used under the condition of poor states of existing drivers can be solved.
Owner:AIWAYS AUTOMOBILE CO LTD

Pattern Recognition Reminder System for Signal Lights Based on Stabilized Oscillating Infrared Positioning

The invention discloses a frequency-stabilized oscillatory type infrared positioning-based pattern recognizing and reminding system for signal lamps. The system comprises a power supply module, a reminding module, a central control module and a camera, wherein the reminding module, the central control module and the camera are connected with the power supply module. The reminding module and the camera are connected with the central control module. The central control module comprises a positioning module, a pattern recognizing module connected with the positioning module, and a speed sensing module connected with the pattern recognizing module. The system is characterized in that the positioning module is composed of a frequency-stabilized oscillation module, an infrared receiving circuit, a constant-current infrared transmitting circuit connected with the frequency-stabilized oscillation module, a single-chip microcomputer connected with the infrared receiving circuit, a distance threshold storage module and a triggering module, wherein the distance threshold storage module and the triggering module are connected with the single-chip microcomputer. The constant-current infrared transmitting circuit is controlled by the frequency-stabilized oscillation module. Therefore, infrared signals can be stably radiated by the constant-current infrared transmitting circuit, so that the stability of the system is improved.
Owner:盐城恒久市政工程有限公司

Intelligent recognition steering wheel based on multi-sensor fatigue driving and recognition method thereof

The invention discloses an intelligent recognition steering wheel based on multi-sensor fatigue driving and a recognition method thereof; the steering wheel comprises a steering wheel body and a steering column, and relates to the technical field of automobile parts. According to the intelligent recognition steering wheel based on multi-sensor fatigue driving and the recognition method of the intelligent recognition steering wheel, a pressure sensor, a blood oxygen sensor and a camera monitor a driver at the same time, when the hand pressure value detected by the pressure sensor is smaller than an alarm threshold value, alarm reminding is conducted, and the blood oxygen sensor collects the blood oxygen index of the driver; a central processing unit calculates the fatigue state value of a driver according to the blood oxygen index, the camera collects the face information of the driver, the blinking frequency of the driver is calculated through an image processing unit, fatigue is judged by monitoring the blinking condition of the driver through videos, the state of the driver is judged more accurately through multiple monitoring modes. Therefore, when a driver is in fatigue driving, the driver can be reminded in time, and accidents are prevented.
Owner:浙江梵隆汽车部件有限公司

Sudden unloading speed regulation method for diesel engine

The invention discloses a sudden unloading speed regulation method for a diesel engine. The method comprises the following steps that 1, a sudden unloading speed regulation function of the diesel engine is initialized; 2, an ECU monitors the real-time rotating speed of the diesel engine and judges whether the diesel engine happens sudden unloading action or not according to the real-time rotating speed of the diesel engine, if yes, the step 3 is executed, and if not, the real-time rotating speed of the diesel engine continues to be monitored; 3, the ECU sends a fuel cut-off request to a fuel quantity calculation module, when the fuel cut-off condition is met, the fuel quantity calculation module sets the fuel injection quantity to be 0, and the fuel cut-off action is executed on the diesel engine; 4, the ECU completes the fuel cut-off action, and the fuel quantity is recovered; and 5, the ECU starts fuel cut-off release timing, and the step 2 is executed after timing is finished. By means of the sudden unloading speed regulation method, the sudden unloading action of the diesel engine can be judged by monitoring the rotating speed of the diesel engine, an fuel cut-off action instruction is triggered, the frequency overshoot of the diesel engine can be reduced through fuel cut-off, and therefore the rapid and direct speed regulation effect is achieved.
Owner:上海新动力汽车科技股份有限公司

Pattern Recognition Reminder System for Infrared Positioning Signal Lamp Based on Shaping Circuit

The invention discloses a shaping-circuit-based mode identification prompting system for an infrared positioning signal lamp. The system is composed of a power supply module, a prompting module connected with the power supply module, a central control module, and a camera. The prompting module and the camera are connected with the central control module; and the central control module includes a positioning module, a mode identification module connected with the positioning module, and a speed sensing module connected with the mode identification module. The system is characterized in that the positioning module consists of a constant-current infrared transmitting circuit, an infrared receiving circuit, a shaping circuit connected with the infrared receiving circuit, a single-chip microcomputer connected with the shaping circuit, and a distance threshold storage module and a trigger module, wherein the distance threshold storage module and the trigger module are connected with the single-chip microcomputer. According to the invention, the shaping circuit carries out processing on an infrared signal reflected by a vehicle, so that a distortion phenomenon of the infrared signal during the transmission process can be reduced. Therefore, precision of vehicle position determination can be enhanced.
Owner:江苏众辉电子科技有限公司

Infrared distance measurement and positioning based mode identification reminding system for signal lamp

The invention discloses an infrared distance measurement and positioning based mode identification reminding system for a signal lamp. The system comprises a power supply module, a reminding module connected with the power supply module, a central control module and a camera, wherein the reminding module and the camera are both connected with the central control module; the central control module consists of a positioning module, a mode identification module connected with the positioning module and a speed sensing module connected with the mode identification module; and the system is characterized in that the positioning module consists of a constant-current infrared transmission circuit, an infrared receiving module, a single-chip microcomputer connected with the infrared receiving circuit as well as a distance threshold storage module and a trigger module which are connected with the single-chip microcomputer. According to the system, the position of a vehicle is measured by adopting an infrared distance measurement technology, the measurement precision is high, the response is quick, and the phenomenon of false measurement or missing measurement does not occur.
Owner:NINGBO MOMI INNOVATION WORKS ELECTRONICS TECH

A lock status reminder device

The invention discloses a lock state reminding device which comprises a clutch assembly, a left optocoupler, a right optocoupler, a right optocoupler swing plate assembly and a left optocoupler swing plate assembly. The clutch assembly comprises a rotating clutch wheel and a sliding block guide base. The rotating clutch wheel is rotatably arranged on the periphery of the outer side of the sliding block guide base in a sleeving mode. The distance from the outer side wall of the rotating clutch wheel to the circle center of the sliding block guide base is gradually decreased. The left optocoupler and the left optocoupler swing plate assembly are arranged on the left side of the clutch assembly, the right end of the left optocoupler swing plate assembly makes contact with the outer side wall of the rotating clutch wheel, and the left optocoupler swing plate assembly can be rotated in and out of the left optocoupler. The right optocoupler and the right optocoupler swing plate assembly are arranged on the right side of the clutch assembly, the left end of the right optocoupler swing plate assembly makes contact with the outer side wall of the rotating clutch wheel, and the right optocoupler swing plate assembly can be rotated in and out of the right optocoupler. The lock state reminding device is simple and compact in structure and can carry out state adjustment accurately in time.
Owner:NANJING EASTHOUSE ELECTRONICS TECH

System, device and method for mobile phone number translation and voice and short message unvarnished transmission

The invention provides a system for mobile phone number translation and unvarnished transmission of voice and short messages, which comprises a pseudo terminal radio frequency receiver, a pseudo terminal baseband, a pseudo terminal high-level protocol stack, a pseudo base station high-level protocol stack, a pseudo base station baseband and a pseudo base station radio frequency transceiver, the pseudo terminal radio frequency receiver and the pseudo terminal baseband are connected with the pseudo terminal high-level protocol stack through a data channel; the pseudo terminal high-level protocol stack is connected with the pseudo base station high-level protocol stack through a data channel; and the pseudo base station high-level protocol stack is respectively connected with the pseudo base station baseband and the pseudo base station radio frequency transceiver through data channels. According to the invention, by reasonably designing the state variable of the pseudo terminal high-level protocol stack and the software scheduling method of the radio bearer in the pseudo base station high-level protocol stack, the state of the pseudo terminal high-level protocol stack is accurately judged in the working process of the system, the scheduling mode is flexible, and the signaling process fluency and the calling success rate are greatly improved.
Owner:武汉旭达安科技有限公司

An Encoder Detection System of a Tower Pumping Unit

The invention discloses a tower type pumping unit encoder detecting system. The tower type pumping unit encoder detecting system comprises a PLC, a touch screen controller, a power supply and a cable, wherein the cable is connected with a pumping unit encoder. Four paths of high-speed acquisition ports are arranged on the PLC, connected with the cable of the pumping unit encoder, and used for acquiring pulse data of the A phase, the B phase and the Z phase of the encoder, and the PLC is communicated with the touch screen controller through an industrial data bus. Compared with an existing detecting device, the tower type pumping unit encoder detecting system is portable in design, interfaces are customized, the plug and play function is achieved, a large amount of disassembly, assembly and aloft work is avoided, an instrument display interface is simple, a conclusion can be directly acquired through one-button operation, all analysis, calculation and judgment are completed by professional software, the requirement for quality of operation staff is low, detecting speed is high, state judgment is accurate, and due to specific functions, the tower type pumping unit encoder detecting system is suitable for encoder detection in the whole production and debugging processes of a tower type pumping unit control system and convenient and quick to use.
Owner:CHENGDU JINLIN IND MFG

Sliding cover type terminal, sliding cover state detection method and device and storage medium

The invention relates to a sliding cover type terminal, a sliding cover state detection method and device and a storage medium. A magnet is arranged in an upper sliding cover of the sliding cover typeterminal. A first Hall sensor, a second Hall sensor and a processor are arranged in the lower sliding cover. The first Hall sensor and the second Hall sensor are arranged at a preset interval in thesliding direction of the upper / lower sliding cover. When the sliding cover is in a sliding open state, the first Hall sensor and the second Hall sensor are both located on one side of the direction ofthe first magnetic pole of the magnet. When the sliding cover is in a closed state, the first Hall sensor and the second Hall sensor are both located on one side of the second magnetic pole of the magnet. According to the invention, the output of three or four level states is realized through the two Hall sensors, and a relatively accurate slip cover state event can be output in an intermediate state even under an interference condition.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Control and judgment method of car back door state

The invention discloses a control and judgment method of a car back door state. The control and judgment method comprises the steps that whether a back door lock is in a closed state or in an opened state is judged through a door lock signal unit; and if the back door lock is in the closed state, at the moment, a back door ECU conducts clear operation through a Hall value collected by a stay rod Hall unit, data collected by the stay rod Hall unit are cleared, and it is judged that a back door is in the closed state at the moment. The control and judgment method has the advantages that the phenomena of misjudgment and false alarm which are generated by accumulation of the stay rod Hall value due to vibration when a car back door is in a closed state in the prior art are avoided, state judgment of the back door is more accurate, and a car electric back door control system is more humanized.
Owner:ZOTYE INT AUTOMOBILE TRADING CO LTD

Method and device for detecting state of bucket arm vehicle based on historical data in hot-line work

The invention discloses a method and a device for detecting the state of a bucket arm vehicle based on historical data in hot-line work, which belong to the technical field of hot-line detection, and are characterized in that a leakage current measuring device is arranged to measure the leakage current, judge the specific condition of the leakage current and perform normalization operation on the leakage current. In addition, the leakage current detection device also records the service life of the boom truck, a set service life threshold value, preventive test data of the last three years and a qualified threshold value, and normalizes the service life and the preventive test data of the last three years through a hybrid analytic hierarchy process, so that the leakage current of the boom truck is obtained through a factor analysis weight method. According to the method, the safety condition of the boom truck at the moment is comprehensively analyzed, and at least two layers of threshold values are set, so that power-off operation or test stopping operation is carried out, the state of the boom truck can be determined under the condition that the leakage current does not exceed the threshold values, and the safety performance of hot-line work is greatly improved.
Owner:DONGYING POWER SUPPLY COMPANY STATE GRID SHANDONG ELECTRIC POWER
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