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

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.

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.

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.

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.

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.

The invention discloses an intelligent identification steering wheel based on multi-sensor fatigue driving and an identification method thereof, including a steering wheel body and a steering column. The invention relates to the technical field of auto parts. The intelligent recognition steering wheel and its recognition method based on multi-sensor fatigue driving monitor the driver at the same time through the pressure sensor, blood oxygen sensor and camera. The oxygen sensor collects the driver's blood oxygen index, and the central processing unit calculates the driver's fatigue state value according to the blood oxygen index. The camera collects the driver's face information, and calculates the driver's blink times through the image processing unit. Monitor the driver's blinking condition to judge fatigue. Various monitoring methods make the judgment of the driver's state more accurate, so that when the driver is tired, the driver can be reminded in time to prevent accidents.

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.

An automatic light controller, the automatic light controller includes a control circuit, a photosensitive sensor, a light sensor, a three-axis acceleration sensor U3, a vehicle speed signal, a combined light signal, a drive circuit, a low beam, a high beam, etc., the The control circuit includes an external power supply input circuit connected to the input terminal of the single-chip microcomputer U4, a crystal oscillator circuit, and a program download interface circuit. The output terminals of the photosensitive sensor, light sensor, vehicle speed signal and combined light signal are connected to the input terminal of the single-chip microcomputer U4. The output end of the axial acceleration sensor U3 is connected to the SPI interface of the single-chip microcomputer, and the output end of the control circuit is connected to the low beam and the high beam through the driving circuit. The invention can automatically control the lighting or closing of the headlights of the automobile according to the change of the ambient light intensity, avoiding the potential safety hazards caused by frequent dimming or constant dimming to safe driving, and ensuring the safety of driving at night.

The present disclosure relates to a sliding cover type terminal, a sliding cover state detection method, a device, and a storage medium. The sliding cover type terminal includes an upper sliding cover and a lower sliding cover connected by a sliding rail; the upper sliding cover is provided with a first magnet and the second magnet, the first magnet and the second magnet are arranged at a preset distance along the sliding direction of the upper / sliding cover; the magnetic poles of the first magnet and the second magnet have the same direction; Hall sensors and The processor, the Hall sensor is electrically connected with the processor; when the slide cover is opened, the first magnet and the second magnet are located on one side of the Hall sensor; when the slide cover is closed, the first magnet and the second magnet The magnets are both on the opposite side of the Hall sensor. The present application can realize a more accurate state judgment on the state of the sliding cover, and can timely output the state event of the sliding cover in the middle position of the sliding process, which is beneficial to the quick start of the subsequent control logic.

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.

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.

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 Hall sensor and processor; the first Hall sensor and the second Hall sensor are set at a preset distance along the sliding direction of the upper / sliding cover; in the sliding state of the sliding cover, the first Hall sensor and the second Hall sensor The Hall sensors are located on one side of the direction where the first magnetic pole of the magnet is located; when the sliding cover is closed, the first Hall sensor and the second Hall sensor are both located on one side of the direction where the second magnetic pole of the magnet is located. The present disclosure realizes the output of three or four level states through two Hall sensors, and can output a relatively accurate slide state event in an intermediate state even in the case of interference.

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.

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.

The invention provides a robot state judgment method and device. According to one aspect of the technical idea of the invention, the state judgment method of the robot comprises the following steps: obtaining first data and second data related to the operation of the robot; analyzing the operation of the robot in a frequency domain based on first data related to the operation of the robot to obtain a resonant frequency; obtaining a first comparison result by comparing the obtained resonance frequency with a reference resonance frequency; when the first comparison result is greater than a threshold value, performing DQ conversion on a three-phase signal based on second data related to operation of the robot to generate a Lissajous figure; obtaining a second comparison result by comparing the generated Lissajous figure with a reference Lissajous figure; and judging the state of the robot based on at least one of the first comparison result and the second comparison result.

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.

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 Hall sensor and processor; the first Hall sensor and the second Hall sensor are set at a preset distance along the sliding direction of the upper / sliding cover; in the sliding state of the sliding cover, the first Hall sensor and the second Hall sensor The Hall sensors are located on one side of the direction where the first magnetic pole of the magnet is located; when the sliding cover is closed, the first Hall sensor and the second Hall sensor are both located on one side of the direction where the second magnetic pole of the magnet is located. In the present application, two Hall sensors are used to realize the output of three states, so that the corresponding slide state event can be output in the intermediate state, so as to perform logic control according to the slide state event.

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.

The invention discloses an image processing method and its equipment. Through a confidence degree calculation unit, the confidence degree reflecting the degree of approximation of unqualified products or qualified products is specified based on a pre-prepared reference image template, and based on the relevant confidence degree, the The status of the object is judged as good or bad. In this way, even for an object with an abstract fuzzy concept area, it is possible to perform a preparatory and rapid judgment like processing an image of the object.

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.