28results about How to "Reduce time error" patented technology

The invention discloses an intelligent detection method for medicine components and medicine quality, and belongs to the field of artificial intelligence. The method comprises the following steps: acquiring a drug sample solution and a control drug solution, and injecting the drug sample solution and the control drug solution into a high performance liquid chromatography system; determining whether operation parameters of the high performance liquid chromatography system need to be adjusted or not; determining operation parameter adjustment information, and continuously updating operation parameters of the high performance liquid chromatography analysis system until a complete drug sample chromatogram and a complete control drug chromatogram are obtained; determining medicine component information and impurity component information of the sample medicine; and determining whether the sample medicine reaches a preset medicine quality evaluation standard or not according to the medicine component information and the impurity component information, and if the preset medicine quality evaluation standard is reached, determining that the sample medicine passes quality detection. According to the scheme, the manual operation time and personal errors can be reduced, the detection efficiency and accuracy are improved, and the analysis result is more accurate and stable.

The invention discloses a mechanical arm specified performance high-precision trajectory control method based on an improved super-torsion expansion state observer. The mechanical arm specified performance high-precision trajectory control method comprises the following steps that a dynamic model of an n-joint mechanical arm is established; the kinetic model of the n-joint mechanical arm is re-described as a mechanical arm kinetic model based on total disturbance; an improved super-torsion expansion state observer is designed to estimate the total disturbance in the mechanical arm dynamic model based on the total disturbance; and according to the equivalent control law, the switching control law and the total disturbance estimation value, a recursive integral sliding mode controller based on funnel error transformation is constructed, and trajectory tracking of the mechanical arm is achieved. According to the method, the convergence speed of the system can be effectively improved, the buffeting phenomenon in the system can be effectively inhibited, and meanwhile, the method has good anti-interference performance.

The invention provides a radiation therapy laser positioning system performance test method, which can be applied to the technical field of medical equipment, and comprises the following steps: selecting measurement points on a laser line of a laser positioning system, and measuring the position coordinate of each measurement point; on the basis of the position coordinates of the measuring points, a fitting straight line in the X-axis direction, a fitting straight line in the Y-axis direction and a fitting straight line in the Z-axis direction of the laser positioning system are obtained; the straightness of a laser line of the laser positioning system and the perpendicularity of a laser cross positioning line are obtained through calculation; and measuring the distance deviation between the reference point determined by the laser positioning system and the reference point of the radiotherapy system to obtain a consistency test result of the reference points of the laser positioning system and the radiotherapy system. On the premise that the existing test requirements are met, the straightness of the laser rays, the perpendicularity of the laser cross curve and the positioning accuracy of the radiotherapy positioning laser system are improved. The invention also provides a radiation therapy laser positioning system performance test system and electronic equipment.

The invention relates to a time-resolved spectral measurement method, device and equipment based on a multi-event time-to-digital converter, and a medium, and the method comprises the steps: carrying out the histogram statistics of photon signals of different time responses in each column of single-photon avalanche diodes in different laser pulse periods through the multi-event time-to-digital converter, the photon signal distribution of the photon signal of the specific wavelength corresponding to each column of single-photon avalanche diodes in different laser pulse periods is determined; the multi-event time-to-digital converter carries out delay combination on photon signal distribution in different laser pulse periods so as to determine a photon lifetime curve corresponding to the photon signal of the specific wavelength of each column of single-photon avalanche diodes. And integrating the photon lifetime curves corresponding to the photon signals of the specific wavelength of each column of single-photon avalanche diodes so as to construct the time-resolved spectrum of the sample to be detected. According to the invention, counting loss or time error caused by dead time can be reduced.

The invention discloses a power conversion system cooperative control method based on a CAN bus, and relates to the technical field of power conversion system control, and the method comprises the steps: setting a master machine and a slave machine of a power conversion system based on a plurality of devices connected in parallel, and selecting a CAN communication bus to carry out the data communication between the master machine and the slave machine, the method comprises the following steps: accurately calculating the phase of the slave computer during actual wave transmission by using a timestamp counter CANTSC value latched by a message object timestamp register MOTS of a CAN module in the slave computer and used for receiving an angle signal time sent by a host computer and a timestamp counter CANTSC value of an actual wave transmission time of the slave computer, so as to determine a wave transmission angle; meanwhile, according to the received amplitude information sent by the host, the slave calculates the modulation ratio of final wave sending by combining bus power supply of the respective driving controller; and the slave outputs signals with the same amplitude, the same frequency and the same phase in each control period according to the modulation ratio and the wave sending angle determined by calculation, so that accurate cooperative control among a plurality of drivers in the parallel operation system is realized.

The invention discloses an optimization method of a new energy plug-in hybrid automobile fuel tank shell die stamping process, and relates to the technical field of fuel tank shell manufacturing, the method comprises the following steps: designing a multi-station die suitable for a fuel tank shell, installing the multi-station die on a stamping production line, each station die being responsible for a specific forming step, constructing an integrated detection mechanism, and forming the fuel tank shell through the integrated detection mechanism; the method comprises the following steps: configuring detection parameters when an oil pan is subjected to multi-station punching, immediately performing quality detection after a workpiece passes through each station, and constructing a multi-station intelligent adjusting mechanism, namely recording the punching parameters of each oil tank shell punching station in real time, and automatically adjusting the punching parameters of each station according to a quality detection result. By constructing a multi-station intelligent adjusting mechanism, the system can record and analyze punching parameters of each station in real time, parameter setting is automatically optimized in combination with a quality detection result, and intelligentization and high efficiency of the production process are achieved.

The invention relates to a time synchronization device, and the device comprises an FPGA chip which is used for dividing the clock frequency of a received initial clock synchronization signal into a first clock frequency point and a second clock frequency point; the clock chip comprises a first phase-locked loop and a second phase-locked loop, and the first phase-locked loop is used for obtaining a system clock according to the first clock frequency point and sending the system clock to the second phase-locked loop; the second phase-locked loop is used for acquiring the PTP clock offset frequency according to the system clock and sending the PTP clock offset frequency to the FPGA chip; the FPGA chip comprises a pulse generator, and the pulse generator is used for generating a pulse signal per second and adjusting the phase of the pulse signal per second according to the PTP clock offset frequency, so that the phase is consistent with the pulse phase per second of the initial clock synchronization signal, and time synchronization is completed. According to the application, clock synchronization of the application equipment and the upstream equipment is realized by utilizing the FPGA chip and the clock chip.

This invention discloses a real-time evaluation method for photovoltaic panel defects and performance based on multispectral imaging, belonging to the field of computer processing technology. The method includes the following steps: S01, emitting multispectral light including visible light, near-infrared, and thermal infrared bands to the photovoltaic panel, and simultaneously receiving reflection and radiation signals based on the multispectral light to obtain a multispectral image dataset; wherein, the dataset includes visible light images, photoluminescence images in the near-infrared band, and thermal infrared images; S02, performing registration and fusion processing on the multispectral image dataset to generate a registered multispectral fused image. This invention, through multispectral information fusion and intelligent analysis, achieves simultaneous diagnosis of internal and external defects of photovoltaic panels and quantitative evaluation of power generation performance, significantly improving detection efficiency and maintenance accuracy.

The utility model discloses a positioning mechanism for board processing, which comprises a conveying assembly line and a mounting bracket, one side of the conveying assembly line is provided with an in-place photoelectric mechanism used for carrying out in-place detection on boards conveyed above the conveying assembly line, and the in-place photoelectric mechanism can drive a blocking mechanism to intercept the boards. A movable baffle mechanism is arranged on one side of the in-place photoelectric mechanism, and a flange rotating assembly used in cooperation with the movable baffle mechanism is installed on the top of the installation support. By designing the angle-variable flange rotating assembly and the angle-variable movable baffle mechanism, wood boards of various sizes and angles can be accurately and rapidly positioned; by arranging the in-place photoelectric mechanism and the blocking mechanism, the same equipment can meet the machining requirements of wood boards of different specifications, the wood boards can be rapidly and accurately positioned to the designated positions, the positioning time is shortened, the machining error is reduced, and therefore the overall production efficiency is improved.

The present application relates to a time synchronization device, wherein the time synchronization device includes: an FPGA chip, which is used to divide the clock frequency of the received initial clock synchronization signal into a first clock frequency and a second clock frequency; the clock chip includes a first phase-locked loop and a second phase-locked loop, the first phase-locked loop is used to obtain a system clock according to the first clock frequency, and send the system clock to the second phase-locked loop; the second phase-locked loop is used to obtain a PTP clock offset frequency according to the system clock, and send the PTP clock offset frequency to the FPGA chip; the FPGA chip includes a pulse generator, the pulse generator is used to generate a pulse signal per second, and adjust the phase of the pulse signal per second according to the PTP clock offset frequency, so that the phase is consistent with the pulse phase of the initial clock synchronization signal per second, and time synchronization is completed. Through the present application, the clock synchronization of the present application device and the upstream device is realized by using the FPGA chip and the clock chip.

The invention provides an automatic position compensation system and method in the TGV machining process, and the system comprises an XYZ movement module, an adsorption platform, at least two mask mark points, a cutting head, a laser system, a visual camera, a plurality of temperature sensing units and a computer control system. Acquiring and storing reference coordinates of each mask mark point; in the laser machining process, machining is suspended according to a preset machining interval, the visual camera is controlled to shoot the mask mark point again, and the current coordinate of the mask mark point is obtained; comparing the current coordinate with a coordinate recorded last time, and calculating a position offset compensation value and a rotation angle compensation value for compensating a subsequent processing path; controlling the XYZ motion module to move according to the position offset compensation value and the rotation angle compensation value; the method has the beneficial effects that online, automatic and global closed-loop compensation of machining position errors is realized.

The utility model discloses a kind of puncture type welding-free joints, it is related to welding-free joint technical field, to solve the problems of existing puncture type welding-free joint complex structure, accessory, high cost. The puncture type welding-free joint includes joint shell and puncture type conducting sheet, joint shell is equipped with containing cavity, containing cavity both ends open, puncture type conducting sheet is installed in containing cavity, and one end of puncture type conducting sheet is equipped with puncture convex tooth;The joint shell on the side of puncture convex tooth is reversely connected with gland. The utility model only includes joint shell and puncture type conducting sheet two core components, simple structure, substantially reduce the number of accessories and production process, reduce production cost;Convenient to operate simultaneously, without professional tool and skill, can quickly complete light bar connection, and connection stability is high, effectively improve use experience, suitable for various connection scenarios of LED soft light bar.

The invention discloses an automatic timing and flow measuring barrel. Comprising a barrel body, an automatic timing device and a water level sensor, the automatic timing device is arranged on the outer side wall of the upper portion of the barrel body and comprises an infrared emitter, a reflecting plate and a timer, the infrared emitter is arranged on the outer side wall of one side of the upper portion of the barrel body, and the reflecting plate is arranged on the side wall of the other side of the upper portion of the barrel body in the mode of directly facing the infrared emitter; the water level sensor is arranged on the inner side wall of the lower part of the barrel and is in contact connection with the inner bottom surface of the barrel. Timing and liquid measuring functions are combined, convenience of measuring liquid flow by a single person is realized, working efficiency is improved, personal errors are reduced, reliability and accuracy of data are improved, a data storage function is provided, and subsequent data analysis is facilitated.

The invention relates to the technical field of ceramic processing, and discloses an automatic mud cutting machine for domestic ceramics, comprising: a frame comprising a plurality of partitions for mounting other components; the machining table is arranged in the inner cavity of the rack and used for being matched with the assembly to complete the mud cutting procedure; the treatment assembly is arranged on one side of the rack and is used for collecting and separating mud cutting waste liquid; and the treatment assembly comprises a recycling box, the recycling box is arranged at the bottom of the machining table, a filter plate with one side rotating is arranged in the recycling box, a separation box for storing separated mud is arranged on the other side of the recycling box, and a third belt wheel is arranged on one side of the separation box. Transverse cutting, longitudinal cutting and chamfering treatment functions are organically integrated in one device, complex operation procedures caused by collaborative operation of multiple devices in a traditional technology are reduced, multi-step machining of ceramic clay can be completed in single operation, conversion time and operation errors between procedures are reduced, and the machining efficiency is improved. And the overall production efficiency and the product machining precision are obviously improved.

The invention provides an electric automobile power battery EIS detection device and method in the technical field of electric automobile power battery detection. The device comprises a main control module, a charging module, a battery module, a switching power supply module, an EIS detection module, an insulation detection module, a switch K1 and a switch K2. The charging module, the battery module, the switching power supply module, the main control module and the EIS detection module are connected in sequence; the detection end positive electrode of the insulation detection module is connected with one end of the switch K1 and the detection end positive electrode of the EIS detection module, the detection end negative electrode is connected with one end of the switch K2 and the detection end negative electrode of the EIS detection module, and the control end is connected with the main control module. The method has the advantages that the detection convenience, the field applicability and the equipment integration degree are greatly improved.

This invention discloses an integrated sensing, driving, and control system and method for micro-nano robots based on an optical communication protocol. The system includes a control module and connected optical communication, multimodal sensing, driving, and power management modules. The optical communication module uses a preset protocol to achieve bidirectional conversion between optical and electrical signals. The downlink uses PWM encoding and near-infrared light, while the uplink uses Manchester encoding and blue light. The multimodal sensing module integrates multiple sensors, and the sampling parameters are dynamically configured by the control module. The driving module converts control commands into PWM signals to precisely drive micro-actuators. The power management module switches between working and sleep modes according to commands. The control module is responsible for command decoding and system scheduling. This system achieves efficient collaboration of communication, sensing, driving, and control on a single chip, featuring high integration, reliable communication, low latency, and low power consumption. It provides a core technology solution for the application of micro-nano robots in complex environments such as biomedicine and environmental monitoring.

This application proposes a clock time synchronization method, apparatus, device, and storage medium. The method includes: sending a delay determination signal to a signal transceiver port within a slave node; obtaining a delay feedback signal from the slave node; determining a master-slave time difference based on the delay feedback signal and the delay determination signal; sending the master-slave time difference to the slave node; and synchronizing clock time with the slave node based on the master-slave time difference. The technical solution of this application, by determining the master-slave time difference of the signal between the master node and the slave node through the delay determination signal and the delay feedback signal, and compensating for clock time based on the master-slave time difference, improves the accuracy of clock time synchronization, reduces time errors caused by asymmetric transmission paths, and can improve service stability.

The invention discloses an intelligent elevator taking assisting system based on machine vision, which is characterized by comprising an industrial camera, a weak infrared ray emission instrument, a weak infrared image acquisition instrument and a development board integration module, the industrial camera is fixed above the elevator car; the weak infrared ray emitter is fixed on the left side of the elevator car; the weak infrared image acquisition instrument is fixed on the right side of the elevator car; the development board integration module is fixed in a gap between a residential elevator landing door and a car door and comprises NVIDIA edge detection equipment, a power supply lithium battery, a voltage conversion device and a relay device. The NVIDIA edge detection device is connected with the industrial camera, the weak infrared ray emitter and the weak infrared image collector. Through the face recognition and posture recognition technology, the identity and the sight position of an owner can be automatically detected, and non-contact elevator taking is achieved. Compared with traditional card swiping or key operation, the elevator taking convenience is greatly improved.

The invention discloses a BLDC brushless motor six-step commutation state machine, and relates to the technical field of motor design, the BLDC brushless motor six-step commutation state machine comprises a housing, two ends of the housing are fixedly provided with a plurality of bearings, each bearing is provided with a rotor, the rotor comprises a main shaft, the main shaft is fixedly provided with a plurality of driving magnets, the driving magnets are uniformly distributed on the main shaft, and the driving magnets are arranged on the main shaft. The Hall circuit board is provided with a driving magnet, one end of the driving magnet is fixedly provided with a fixed nesting sleeve, the fixed nesting sleeve is fixedly provided with a plurality of small magnets, the small magnets are uniformly distributed on the fixed nesting sleeve, and the small magnets and the driving magnet are installed correspondingly. The brushless motor is used for enhancing Hall induction, positioning of the rotating position of the rotor can be improved, time errors generated when the brushless motor encounters a zero point can be reduced, the rotating speed of the rotor is further increased, and meanwhile the rotor can rotate more smoothly and stably.

The utility model relates to the technical field of clutch parts, in particular to a double-sided shot blasting device for an automotive clutch part. The technical problems that according to an existing shot blasting device, a semi-automatic operation mode is generally adopted for conducting shot blasting treatment on parts, an operator needs to be responsible for feeding and discharging in batches, the physical load and labor intensity of work are increased, meanwhile, the stable production speed is not prone to being kept through the semi-automatic operation mode, the production efficiency and productivity are affected, and the work efficiency is reduced are solved. According to the technical scheme, the double-face shot blasting device for the automobile clutch part comprises a D-shaped cutting edge machine, a conveying mechanism, a workpiece, a camera, a double-blasting-head shot blasting device, a monitor, an alarm, a discharging mechanism, a feeding mechanism and an automatic overturning mechanism. The feeding tongs are combined with the skip car for feeding, the parts are rapidly and accurately grabbed for automatic feeding, the labor intensity is reduced, the working efficiency is improved, the discharging tongs are used for discharging, the processed parts are accurately grabbed, and the production interruption time is shortened.

According to the distribution line external damage fault point positioning method and device and the computer equipment provided by the invention, when the distribution line has the external damage fault, the first traveling wave arrival information feature and the first video monitoring equipment time of the distribution line at the first end are recorded; the power distribution line is a power cable in a virtual video composite cable formed by a power transmission cable and video monitoring equipment; acquiring a second traveling wave information arrival feature and second video monitoring equipment time of the distribution line at a second end; according to the first video monitoring equipment time and the second video monitoring equipment time, the first traveling wave information arrival feature and the second traveling wave information arrival feature are corrected, and the accurate time difference value of the fault traveling wave signal arriving at the two ends is obtained; and positioning a fault point according to the total length of the distribution line and the accurate time difference. Therefore, on the premise that a high-precision GPS hardware device does not need to be additionally arranged and the environment influence is avoided, the cost is reduced, and the distance measurement accuracy is ensured.

The invention belongs to the technical field of radar, and specifically relates to a timekeeping method, device, electronic device and storage medium. The invention proposes a timekeeping method, device, electronic device and storage medium. This application uses a constant temperature crystal oscillator and the corresponding optimal calibration weights to achieve a timekeeping accuracy of less than 1us for 48 consecutive hours under conditions of long-term power failure, disappearance of satellite signals, extreme temperatures, and strong electromagnetic interference, meeting the time synchronization requirements of the radar networking system. A timekeeping method, suitable for a timekeeping module of a radar, includes: when determining that the reception of a satellite time signal is abnormal, obtaining a power supply mode indication signal, crystal oscillator status information, and a time reference signal issued by a control end; selecting a target constant temperature crystal oscillator according to the crystal oscillator status information; and determining a power supply mode according to the power supply mode indication signal.

This invention proposes an integrated touch display testing device and system, belonging to the field of automated testing technology for flat panel displays and touch modules. The system includes: a network construction module: identifying multiple interface protocols of the touch display module and generating interface compatibility data; dynamically configuring LVDS, MIPI, and EDP multi-channel transmission links based on the interface compatibility data to construct an adaptive interface communication network; this integrated touch display testing method significantly improves the compatibility of the testing equipment with multi-protocol modules such as LVDS, MIPI, and EDP through multi-interface adaptive transmission technology, eliminating test interruption problems caused by interface incompatibility.

The present application provides a method, system and medium for processing electric data based on satellite time synchronization. The method obtains the equipment time signal through the equipment clock in the electric equipment to be monitored, receives the satellite time signal through the satellite signal receiver, and then determines the frequency difference signal between the equipment time signal and the satellite time signal, so as to determine the adjustment voltage by using the frequency difference signal, and then adjust the signal output frequency of the equipment clock by using the adjustment voltage, so as to provide accurate satellite time for the electric data obtained by the electric equipment to be monitored, effectively reduce the time error during the processing of electric data, and then ensure the accuracy of the subsequent data management platform for the processing of electric data, so as to realize that the data management platform automatically determines the operating state corresponding to the electric data according to the preset electric data processing model, improves the intelligence of the electric system, and greatly improves the management efficiency of the electric system.

This invention discloses a high-precision timing method, device, medium, and program product for chips, relating to the field of timing. The high-precision timing method for chips includes: creating a desired timer and a global timer on the current chip; performing start offset compensation on the global timer of the current chip based on a cold reset signal and a start compensation value, and performing periodic frequency offset compensation on the global timer of the current chip according to the period difference between the desired timer and the global timer; and aligning the compensated global timer across clock domains using Gray code cross-clock synchronization. The technical solution of this invention can improve the timing accuracy of the global timer on the chip.

The utility model provides a kind of multi-dimensional box type force sensor calibration device, including load platform and multi-dimensional box type force sensor, the load platform is fixedly installed in the side of the multi-dimensional box type force sensor to be calibrated, guide rail and four-wheel dolly capable of moving along the guide rail are equipped on the load platform, standard weight is equipped on the car body upper portion of the four-wheel dolly, another side of the multi-dimensional box type force sensor is connected with ground fixed platform, and the ground fixed platform is used to fix the whole device on ground.The utility model uses four-wheel dolly equipped with calibration weight to move on platform, guide rail design on load platform, realize structure simplification and operation optimization, without complex pulley or additional stabilizing mechanism, significantly reduce manufacturing cost, can quickly carry out multi-point partial load calibration, greatly simplify calibration process, reduce operation time and human error, avoid the complexity and high cost defects of prior art.

The present invention proposes a method and system for reducing the visual detection offset in variable speed motion. The method includes: using an encoder tracking and comparison method to determine the operating state of the device (the device is in a uniform speed / acceleration / deceleration state), the detection offset compensation coefficient is different in different states, the characteristic pattern coordinates of the image are used as a reference, and a tracking and positioning method is used. All other detection windows are based on the reference coordinates, and the offset is tracked and positioned according to the calculated detection offset compensation coefficient, so as to achieve compensation for the detection offset of the device in different operating states and reduce the size of the detection offset; at the same time, an interrupt trigger pulse signal is added to reduce the time error generated from triggering to completion of taking pictures. The shorter the time error, the less the influence of the cigarette pack running speed, and the smaller the position offset, thereby improving the accuracy of visual detection in variable speed motion.

A method and terminal device for distance measurement, the method comprising: a first device sends a first low-power Bluetooth BLE broadcast information, the first BLE broadcast information includes a first fixed frequency extended CTE signal (S101); the first device records a first sending timestamp of the first CTE signal (S102); the first device receives a second BLE broadcast information sent by a second device, the second BLE broadcast information includes a second CTE signal; the first device records a second receiving timestamp of the second CTE signal; wherein the first sending timestamp and the second receiving timestamp are used to calculate the distance between the first device and the second device (S103). The method can be used to obtain timestamp information for distance measurement at a relatively low cost.