24results about How to "Accurate timing" patented technology

The application relates to the technical field of aerial video analysis, and discloses a large-scene multi-modal analysis system and method based on a UAV. The method acquires an original video frame sequence from aerial equipment, extracts a scene change period and an object motion trend by calculating an inter-frame motion feature vector, and judges whether a scene is in a stable or dynamic state by means of a state classification model. In the dynamic state, a tracking target position is calculated according to preset parameters, and an analysis target area is adjusted in combination with the motion trend; a camera parameter adjustment instruction is generated according to a deviation amount of the analysis target area from an actual object position, and is output to an executing mechanism; a complexity value is acquired through a scene complexity feedback signal, and when the complexity value exceeds a preset range, an adaptive algorithm is used to update an analysis strategy and output an adjustment signal; the output timing of control and strategy adjustment signals is optimized, the frame sequence and analysis parameter change trend are monitored in real time, preset parameters are dynamically updated to match user requirements, and efficient video analysis processing is realized.

This invention relates to the interdisciplinary field of mechanical engineering and optical inspection, and discloses a method and system for quality sorting of automotive stamping parts combined with optical inspection. The method includes: synchronous imaging by a high-speed linear array camera and a structured light projector via an encoder and photoelectric triggering device; fusing 3D point clouds and 2D images, and using a deep convolutional neural network for defect identification and quality grading; calculating the six-degree-of-freedom pose of the workpiece using an iterative nearest-point algorithm and principal component analysis; calculating the spatiotemporal parameters of sorting based on a predictive instruction generation module, and issuing dynamic control commands to multi-degree-of-freedom pneumatic push rods via a hard real-time communication bus to execute sorting. The system includes a synchronous triggering unit, an imaging unit, a defect identification unit, a pose calculation unit, a predictive instruction generation module, and a dynamic sorting execution unit. This invention achieves millisecond-level accurate identification and adaptive sorting, significantly improving detection accuracy, sorting efficiency, and system robustness.

This invention discloses a droplet position detection device and method, relating to the field of display technology. The droplet position detection device includes a driving detection substrate; the driving detection substrate includes an electrically connected MCU processing module and a droplet position detection module; the MCU processing module is used to send a detection signal to the droplet position detection module; the droplet position detection module is used to receive the detection signal, acquire the node voltage in the detection loop, and generate a corresponding target data signal based on the node voltage; the MCU processing module is also used to determine the droplet position based on multiple target data signals and a preset value. The embodiment provided by this invention sets an MCU processing module and a droplet position detection module on the driving detection substrate. The MCU processing module determines the droplet position by sending a detection signal to the droplet position detection module and acquiring and analyzing the target data signal returned by the droplet position detection module.

The invention provides a curved-surface foam processing method. The curved-surface foam processing method comprises the following steps: S1, performing three-dimensional modeling on curved-surface foam and uniformly dividing the curved-surface foam into a plurality of small foam blocks; s2, the foam blank is clamped and fixed to a platform with a groove; s3, the foam blank is machined into small foam blocks through a three-axis machine tool; and S4, splicing and assembling the processed small foam blocks to obtain the complete curved-surface foam. The machining device has the effect of achieving high-profile-precision machining of large curved-surface foam.

The utility model discloses a self-calibration timing circuit, a timing device and an ignition device, and relates to the field of timing, the self-calibration timing circuit comprises a calibration circuit, an output end is connected with a clock end of a calibrated circuit, and the calibration circuit is used for outputting a clock signal to the calibrated circuit; the output end of the calibrated circuit is connected with the input end of the ignition device, and the calibrated circuit is used for timing based on the clock signal; and the ignition device is used for outputting detonation when the ignition signal is received through the input end of the ignition device at the end of timing. The calibration circuit and the calibrated circuit are separately arranged, the calibration circuit does not participate in actual control, the high overload circuit is prevented from influencing the timing accuracy, the calibration circuit outputs the time to the calibrated circuit, the ignition device is further controlled, and the timing can be more accurate.

This invention provides a fully automated immunoassay analyzer, comprising: a base, a reaction disk for carrying multiple immunochromatographic test strips installed inside the base, a sample processing area for processing samples installed on the base, and a moving arm assembly movably installed on the base for driving a pipette arm to perform liquid pipetting, mixing, and spotting operations in the sample processing area. Compared with the prior art, this invention has the following advantages: by setting up the moving arm assembly, in conjunction with the pipette arm and negative pressure nozzle, its automated operation can simultaneously perform multiple sample single detection, single sample multiple detection, or multiple sample multiple detection, with high throughput, making up for the insufficient throughput of existing manual experiments. Automated sample pretreatment and automatic recycling of waste after experiments avoid manual errors and are convenient and pollution-free.

This invention provides an electric vehicle charging structure and an electric vehicle, relating to the technical field of electric vehicles. The charging structure includes a charging plug and a charging socket. At least one first magnet and at least one second magnet are disposed on the snap-fit ​​protrusion. A third magnet for magnetic attraction with the first magnet and a fourth magnet for magnetic attraction with the second magnet are disposed around the insertion hole. The first and second magnets on the snap-fit ​​protrusion of the charging plug provided by this invention can respectively magnetically attract the third and fourth magnets on the charging socket. This magnetic attraction ensures that the insertion and extraction force between the charging plug and the charging socket meets requirements. Furthermore, the first and second magnets have opposite magnetic properties on the same side; when the charging plug is reversed, resistance is generated between the magnets, allowing the user to know in advance that the charging plug is reversed and correct it in time.

This invention discloses a remotely controllable hydraulic self-unloading mining car, relating to the field of self-unloading mining car technology. The self-unloading car includes a conveyor mounted on the lower surface of the rear of its frame. A track is installed on the conveyor, and several first drive motors are mounted on the outer surface of the conveyor's rotating working surface. Each first drive motor has a second drive motor mounted at its front end. A retractable and foldable folding and pushing mechanism is mounted on the front surface of each second drive motor. By setting a conveyor, folding and pushing mechanism, and a winding mechanism below the rear of the self-unloading car frame, this invention can actively push the material at the rear of the car backward during unloading, clearing material accumulation below the discharge port in real time. This fundamentally prevents material from blocking the rear of the car and causing unloading interruptions, enabling continuous unloading without the vehicle moving forward, significantly improving unloading efficiency.

The invention discloses a steering gear pull rod assembly torque performance testing method. The method comprises the steps that S1, a steering gear pull rod assembly is installed on a testing device; s2, the steering gear pull rod assembly is driven to move in the set direction, and the actual steering working condition is simulated; s3, torque data of the pull rod assembly in the movement process are collected through the testing device; and S4, the testing device processes and analyzes the collected torque data according to a preset torque performance index, and evaluates whether the torque performance of the steering gear pull rod assembly is qualified or not. According to the testing device, full automation of the testing process is achieved, manual intervention is not needed from bidirectional driving, data collection to result judgment, the testing efficiency and operation consistency are remarkably improved, and the testing device is particularly suitable for rapid detection of a production line.

This invention relates to the field of fault detection and location technology for railway power supply systems. Specifically, it discloses a method for identifying fault sections in railway AT power supply contact networks based on special-type interconnects. This method solves the problem that existing railway AT power supply traction networks may make mistakes in determining fault sections by relying solely on electrical quantities when a fault occurs near the AT substation. The method involves installing a wireless communication sensor with a built-in special-type interconnect near the AT substation's connection point towards the section substation. After the data is collected and processed by a centralized data receiving device, the data is uploaded to a communication server. The server uses the GOOSE communication protocol to communicate with the fault location device at the AT substation via Ethernet. The sensor's activation signal and the collected electrical parameters are uploaded to the traction substation's fault location device through the fault location channel between the traction substation and the AT substation. Combined with AC sampling data from each substation, the method achieves accurate identification of the fault section, accurately guiding maintenance personnel to reach the fault location as quickly as possible for repair, troubleshooting, and restoration of normal power supply.

The present disclosure relates to methods and systems for obtaining image information of an organism including a set of optical data, calculating a growth index based on the set of optical data, and calculating an anticipated harvest time based on the growth index, where the image information includes at least one of: (a) visible image data obtained from an image sensor and non-visible image data obtained from the image sensor, and (b) a set of image data from at least two image capture devices, where the at least two image capture devices capture the set of image data from at least two positions.

This invention discloses a testing device and method for the high-frequency pulse characteristics and flow self-calibration of a hydrogen injection valve. The method includes the following steps: setting initial parameters and a target flow rate for the high-frequency pulse of the hydrogen injection valve, and constructing a nonlinear mapping model between the initial pulse duty cycle and the hydrogen output flow rate; performing a multi-gradient pulse frequency injection test; acquiring dynamic hydrogen flow rate data in real time, and simultaneously acquiring flow data during the pulse injection process; calculating the deviation between the actual flow rate and the target flow rate, and constructing a dynamic deviation evaluation model based on the stoichiometric ratio of the hydrogen fuel cell; iteratively correcting the pulse width parameter based on the deviation value, and applying a fuzzy PID control algorithm to achieve adaptive parameter optimization; outputting a calibration parameter set that meets the accuracy threshold, and generating a final parameter set containing a frequency-pulse width two-dimensional calibration matrix. This invention effectively solves the problems of flow deviation and response lag that easily occur in the hydrogen supply of the hydrogen injection valve under high-frequency pulse conditions in traditional hydrogen fuel cell systems.

The invention provides a metrological verification operation normalization automatic monitoring method and system based on behavior recognition, and belongs to the technical field of image processing, and the method comprises the steps: obtaining video stream data of a target verification operator in an operation process in real time; identifying the video stream data through the trained behavior identification model to obtain a behavior identification result; determining an operation stage of the target verification operator, and obtaining behavior rule information corresponding to the operation stage; determining whether the behavior recognition result conforms to behavior rule information corresponding to the operation stage or not; and if not, outputting reminding information to remind an operator that behavior information which is not consistent with the behavior rule information exists in the current operation behavior. According to the metrological verification operation normalization automatic monitoring method and system based on behavior recognition, the efficiency and accuracy of operation behavior recognition can be improved, nonstandard operation behaviors in the operation process can be found in time, and an operator can correct errors in time.

The application relates to a timing circuit for a self-recovery over-voltage and under-voltage protector and a test method, and the circuit comprises a first change-over switch SW1, a first contactor KM1 connected with the change-over switch SW1, a coil of the first contactor KM1 connected with a voltage regulator of a main circuit for over-voltage and under-voltage action characteristic test, a second contactor connected with the first contactor KM1, a coil of the second contactor connected with an output end of the main circuit for over-voltage and under-voltage action characteristic test, and a timer connected with the second contactor and the first change-over switch SW1 respectively. Compared with the prior art, the application has the advantages of realizing accurate timing of the self-recovery over-voltage and under-voltage protector and being capable of being applied to various test scenes.

The utility model relates to the technical field of measurement and metering, in particular to an outflow cup viscometer calibration device which comprises a base and a vertical rod fixed on the base, the vertical rod is fixedly connected with a fixed block, one end of the fixed block is provided with a rotating motor, the output end of the rotating motor is connected with a rotating rod, and the rotating rod is connected with a connecting rod. The side end of the rotating rod is fixedly connected with a blocking piece, the vertical rod is slidably connected with a sliding block with a fixing screw rod, one end of the sliding block is fixedly connected with a supporting rod, the other end of the supporting rod is provided with an object containing table, a through groove is formed in the object containing table, a clamping assembly is installed in the through groove, and an outflow cup is fixed in the clamping assembly. The baffle is attached to the bottom of the outflow cup, a beaker is placed on the base, and the beaker is located under the outflow cup. According to the utility model, the problem that the measurement result is affected due to the fact that a person responds to a time interval when a finger is moved away and a stopwatch is used for timing at present is solved, and the problems of tedious measurement steps and low working efficiency are solved at the same time.

The application provides a quality evaluation method, device and equipment of a spine image and a storage medium. The method comprises the following steps: acquiring a spine image to be evaluated; determining the position coordinates of key points of the spine in the spine image; and determining the shooting posture of the spine image according to the position coordinates of the key points of the spine, so as to evaluate the shooting quality of the spine image. The embodiment of the application can realize automatic evaluation of whether the shooting quality of the spine image meets the standard, correct the spine image that does not meet the standard in time, enhance the usability of the spine image for the diagnosis of the health of the spine of a patient, and improve the diagnosis accuracy of the health problem of the spine of the patient.

The application discloses a method and device for detecting the rotor position of a brushless direct current motor and electronic equipment, and relates to the field of motor control. The design strategy of the application significantly reduces the IO resources required by the MCU. By converting the digital signals originally requiring three independent IO ports for processing into a single analog voltage signal for processing, not only are two valuable IO ports directly saved, but the digital signal transmission path is also effectively shortened, reducing the risk of electromagnetic interference that may be introduced due to long wiring. This optimization in design not only improves the overall reliability of the system, but also provides greater flexibility for subsequent circuit layout and wiring.

The utility model provides a transportation mechanism and transportation equipment, the transportation mechanism comprises a rack, a driving part, a bearing part and an image recognition assembly, the rack is fixedly arranged, and the driving part is arranged on the rack; the bearing part is arranged on the rack and is in driving connection with the driving part, the bearing part can bear the graphite boat, and the driving part can drive the bearing part to bear the graphite boat to move in and out of the diffusion furnace; the image recognition assembly is arranged on the rack, the graphite boat is provided with an identification part, and the image recognition assembly can recognize the identification part to know whether the graphite boat deflects or not; the image recognition assembly is further in signal connection with the driving part, and the driving part receives a graphite boat deflection signal sent by the image recognition assembly and can drive the bearing part to correspondingly move and adjust. In the conveying mechanism, the driving part is used for driving the bearing part to bear the graphite boat to move, so that the graphite boat is conveyed into the diffusion furnace or conveyed out of the diffusion furnace, meanwhile, the driving part can directly or indirectly receive signal feedback of the image recognition assembly, and then the bearing part is correspondingly driven to move.

The application belongs to the technical field of geogrid laying, and discloses a construction auxiliary device for geogrid laying and a laying method thereof. The device comprises a pay-off frame, the top of the pay-off frame is rotationally connected with a pay-off roller, the two ends of the pay-off roller are fixedly connected with limiting discs, the top of one side of the pay-off frame is fixedly installed with a motor one, the output end of the motor one is fixedly connected with one end of the pay-off roller, one side of the pay-off frame is provided with a base, the top of each side of the base is fixedly connected with a mounting plate, and a plurality of transmission rollers are rotationally connected between the two mounting plates. The limiting assembly is arranged on the base on one side of the pay-off frame, so that the staff can conveniently observe the state of the geogrid pay-off process in real time. The correction assembly arranged on the mounting frame can timely correct the geogrid in the pay-off process, so that the laying position of the geogrid reaches the original design boundary line.

The present application relates to the technical field of winding machine, and disclose a winding machine with tail line clamping, including support mechanism, and setting on the support mechanism power mechanism, clamping mechanism, shearing mechanism and moving mechanism;Among them, the support mechanism is used for supporting the winding reel;The one end of power mechanism extends to near the winding reel, the other end is connected with the input end of moving mechanism;The output end of moving mechanism is connected with clamping mechanism and shearing mechanism respectively. This kind of winding machine with tail line clamping, through setting power mechanism, utilize camber block to resist the coil on the winding reel, can promote camber block to move along with the increase of coil thickness, the physical change of coil thickness is converted into the power source first telescopic rod of triggering subsequent shearing and clamping action, cooperate moving mechanism, can coordinate the working time sequence of shearing mechanism and clamping mechanism, realized the automatic triggering of pure mechanical type linkage based on winding progress, structure is reliable and opportunity accurate.

The present application relates to the technical field of hydraulic forming equipment, and discloses a high-efficiency hydraulic machine for heat shield production, comprising: a hydraulic pressing plate for pressing to press the multiple layers of heat shield raw materials placed at the bottom; and a rotating disc provided with a plurality of stations. The high-efficiency hydraulic machine for heat shield production, through the cooperation of the multi-station rotating disc and the automatic feeding preset mechanism, changes the manual feeding to automatic feeding during the rotation of the rotating disc, and the multiple layers of heat shield raw materials in the preset frame can be accurately dropped into the corresponding station during the rotation of the rotating disc. Only the stacked heat shield raw materials need to be placed in the preset frame during the pressing process of the hydraulic pressing plate, without affecting the overall work flow, and without the need for manual alignment, stacking and pre-pressing, thereby solving the problem of manual feeding during the rotation of the rotating disc of the traditional hydraulic machine, significantly shortening the feeding waiting time, improving the continuous operation capacity of the equipment, and greatly improving the heat shield pressing production efficiency.

This invention relates to the field of intelligent manufacturing and industrial quality management technology, and in particular to a management system for die-cast housings of new energy vehicles. The system includes a data acquisition module for periodically collecting production data, quality data, and production equipment data of the die-cast housings; a data analysis module for determining the defect type of the die-cast housings within a single cycle based on the average defect density and defect clustering index of the die-cast housings within that cycle; a traceability module for determining different traceability methods based on the defect type of the die-cast housings within a single cycle; and an adjustment module for adjusting the judgment parameters for the defect type of the die-cast housings within a single cycle based on the defect traceability accuracy. This invention, through automatic and accurate defect classification and differentiated traceability, quickly locates the root cause of problems, greatly shortens the problem response time, and reduces the generation of defective products.

The application belongs to the technical field of electronic component processing, and discloses a welding clamping structure and a welding device. A clamping rack set, a release rack set and a rotating conveying frame are arranged on a base. The conveying frame is provided with a clamping assembly. After the electronic component is placed on the bottom plate of the clamping assembly, the conveying frame rotates, the gear on the connecting screw first engages with the clamping rack set, the connecting screw rotates around its own axis, the adjusting part gradually approaches the bottom plate to clamp the electronic component; after the electronic component is clamped and welding is completed, the conveying frame continues to rotate, the gear engages with the release rack set, the connecting screw reversely rotates to drive the adjusting part to gradually move away from the bottom plate to release the electronic component; the functions of transferring the electronic component and clamping and releasing are integrated together. With the rotation of the conveying frame to a specific position, the clamping and releasing actions can be automatically triggered, the process is simplified, the timing is accurate, and the welding quality and production efficiency are improved.

This application provides an electric screwdriver bit placement and storage device. Multiple storage structures are sequentially arranged on a base along a first direction. Each storage structure includes grooves and alignment holes arranged sequentially along a second direction, allowing for the simultaneous placement of multiple electric screwdriver bits. Each screwdriver bit is equipped with a bit collar, and the diameter of the bit collar varies for different bit models to help a sensor better distinguish between different bit collar models. Simultaneously, each storage structure is equipped with a corresponding sensor. This sensor detects whether the bit collar on the electric screwdriver bit placed in each storage structure matches the target bit collar set by that storage structure. The sensor can feed back the detection result to an alarm. The alarm can issue a warning message if the bit collar on the electric screwdriver bit placed in the target storage structure does not match the target bit collar set by the target storage structure, allowing the user to correct the incorrect placement of the electric screwdriver bit in a timely manner.