31results about How to "Work in real time" patented technology

The invention discloses a single-frequency network radar multi-target tracking method. The method comprises a measurement interconnection module and a sequence tracking module. The measurement interconnection includes selecting a certain number of measurement and sending-receiving pairs to build low-dimensional association assumptions for association, quickly determining all of the association assumptions to remove incorrect association assumptions as for as possible, sorting association assumptions accepted in the last step, and solving to obtain second measurement after measurement interconnection on the basis of an overall association 0-1 integer programming model built according to sorted data in a single-frequency network. The sequence tracking is achieved based on the second measurement through Kalman filtering. The single-frequency network radar multi-target tracking method can be used for solving association fuzziness of measurement, a transmitting station and a target of a radar in the single-frequency network, greatly reduces the computation complexity by combining a heuristic method and an optimization model, achieves the multi-target tracking performance close to the known case of the association relationship and has popularization and application values.

The invention relates to a method for preventing oblique pulling in trolley lifting operation, in particular to a method for preventing oblique pulling by utilizing a machine vision method during the construction process of a tower crane. A camera and a marking pole are particularly fixed at the bottom part of a trolley of the tower crane; a marker is arranged on a hanging hook; the camera is connected with an image processor; the image processor is electrically connected with a controller; the camera collects marker information; the image processor is used for processing the marker information collected by the camera and calculating an oblique pulling angle of the marker; when the obliquely pulled angle is larger than a setting value, the controller gives an alarm and breaks a lifting and variable amplitude circuit. A method for preventing the oblique pulling in the field of tower cranes, which is provided by the invention, utilizes the technologies such as image collection, image processing, electronic circuit and the like to accurately measure the value of the oblique pulling angle, thereby greatly improving the phenomenon of the deficiency of preventing the oblique pulling in the field of the tower cranes, and greatly reducing accident rate.

The invention relates to a router temperature detection and heat radiation controlling circuit structure, which comprises a temperature sensor, a first comparator, and a heat radiation fan. The temperature sensor is arranged on the housing of the router. One end of the temperature sensor is connected with input voltage and the other end is connected with the first input end of the first comparator. T The first reference voltage is input into the second input end of the first comparator. The output end of the first comparator is connected with the heat radiation fan. The heat radiation fan is arranged at the bottom of the router. According to the structure of the invention, a heat radiation fan and a temperature sensor are arranged on the surface of a router. Through the comparison of the first reference voltage and the voltage at the other end of the temperature sensor, the opening and closing of the heat radiation fan can be controlled automatically. Without manual operations, the circuit structure can be conveniently used with the result that the heat radiation fan not only increases the heat radiation effect through the use of a heat radiation groove, but also ensures that the router works stably.

The invention relates to a multi-energy-source fuel cell vehicle thermal management system and a control method thereof. The fuel cell vehicle thermal management system comprises a fuel cell subsystem, a storage battery subsystem, a super capacitor subsystem, a heat exchange subsystem and a post-processing subsystem. The control method comprises the steps of detecting the output current and the output power of each energy source, the cooling liquid outlet temperature of each energy source and the heat required by a passenger compartment, and switching the control method of the heat managementsystem among an extremely cold mode, a small cycle, a medium cycle, a large cycle and an extremely hot mode according to the parameters. In each mode, the thermal management system controller realizesthe optimal efficiency of the whole power source part by controlling the flow of the cooling liquid passing through each subsystem, and the quick response of the whole power source part needs to be considered in a low-temperature environment, so that the economy of the fuel cell vehicle and the quick response performance in the low-temperature environment are improved.

The invention relates to a mobile noise detection system. The mobile noise detection system includes noise monitoring sensors, transmitting communication modules, a receiving communication module, an acquisition computer and a noise monitoring system, wherein the noise monitoring sensor is connected with the transmitting communication modules, the transmitting communication modules are wirelessly connected with the receiving communication module, the receiving communication module is connected with the acquisition computer, and the acquisition computer is connected with the noise monitoring system through a local area network. According to the mobile noise detection system of the invention, multi-point distribution of the noise monitoring sensors can be realized, and therefore, the integrity of test data can be ensured, and the continuity of the operation of the noise monitoring sensors can be also ensured; noise acquisition points can be networked easily, and a wide coverage area can be provided; the acquisition computer acquires the data of the noise monitoring sensors in a TCP manner, and therefore, centralized transmission of the data can be realized; and the noise monitoring system can monitor, store, distribute and statistically analyze upload data, and therefore, acquired data can be applied timely and sufficiently.

The invention discloses a bill number identification method and system based on a deep neural network, and the method comprises the steps: sequentially carrying out the graying processing, binarization processing, normalization processing and two-dimensional image mapping one-dimensional data processing of an obtained two-dimensional mixed-shot bill original image, and greatly reducing the data size while maintaining the image information. Time waste caused by data transmission is reduced, and user experience is improved; by designing an OCTC model, introducing a one-dimensional convolution operation to perform feature extraction and image category calculation on image data, and using a plurality of small-size convolution kernels to increase a model receptive field, the experimental effect is ensured, the model parameter quantity is reduced, the effect of a lightweight model is realized, and storage and use by a user are facilitated; according to the method, the user can receive the judgment result of the number of bills in the image while uploading the image, the user experience of a mixed shooting bill recognition system is improved, meanwhile, the system is helped to carry out subsequent bill target detection and content recognition tasks, and real-time work of the system is achieved.

A three-dimensional video laser radar system based on acousto-optic scanning comprises a laser, a laser emission module, a laser receiving module, a signal processing module, a master control circuit module and an upper computer processing program module. The three-dimensional video laser radar system based on acousto-optic scanning overcomes the defects that in a three-dimensional imaging laser radar application based on a traditional scanning method, the imaging speed is low and the size and mass are large, two-dimensional acousto-optic scanning devices are utilized to quickly and flexibly change scanning angles, the scanning angle range and angular resolution, three-dimensional video imaging is achieved, and demands of special occasions with a high imaging speed requirement can be met; meanwhile, the advantages of the small size, light weight, low power consumption and the like of the two-dimensional acousto-optic scanning device are made use of, so the size and weight of the system are greatly reduced.

The invention belongs to the field of air floatation machines, and particularly relates to an air floatation machine automatic residue removing mechanism. Based on the problems of complex mechanism and power device energy consumption of the existing residue scraper, the invention provides an automatic residue removing mechanism with characteristics of simple structure and no requirement of energy consumption. The automatic residue removing mechanism comprises overflow ports (1), a concave groove channel (2), a sewage discharging pipe (3), floats (4) and water blocking side walls (5), wherein floating residue flows out through the overflow ports (1), enters the concave groove channel (2), and finally flows into the sewage discharging pipe (3) so as to be discharged out, and through the floats (4), the automatic residue removing mechanism can float along with the water surface and continuously work.

The invention provides a vehicle real-time positioning verification system and method. According to the invention, through comparing vehicle information captured by a front-end acquisition subsystem of a related time node with vehicle information uploaded by a vehicle-mounted acquisition subsystem at a cloud platform system, whether the vehicle-mounted acquisition subsystem works abnormally is determined, so that it is guaranteed that the vehicle-mounted acquisition subsystem can work effectively in real time, it is guaranteed that accounting data of the cloud platform system is more accurate, and comprehensive control over vehicle operation data is promoted.

The invention discloses a single-frequency network radar multi-target tracking method. The method comprises a measurement interconnection module and a sequence tracking module. The measurement interconnection includes selecting a certain number of measurement and sending-receiving pairs to build low-dimensional association assumptions for association, quickly determining all of the association assumptions to remove incorrect association assumptions as for as possible, sorting association assumptions accepted in the last step, and solving to obtain second measurement after measurement interconnection on the basis of an overall association 0-1 integer programming model built according to sorted data in a single-frequency network. The sequence tracking is achieved based on the second measurement through Kalman filtering. The single-frequency network radar multi-target tracking method can be used for solving association fuzziness of measurement, a transmitting station and a target of a radar in the single-frequency network, greatly reduces the computation complexity by combining a heuristic method and an optimization model, achieves the multi-target tracking performance close to the known case of the association relationship and has popularization and application values.

An automatic correction control system for strips is suitable for the field of production and manufacturing. The automatic correction control system is mainly composed of an A / D conversion front signal processing circuit, a current signal processing circuit and an RS-485 communication circuit. The control system is composed of a CCD photoelectric detection device, a displacement sensor, a correction controller, an electro-hydraulic servo control system and the like. The electro-hydraulic servo control system is composed of a servo amplifier, a servo valve, an oil cylinder, an oil source and the like. By the adoption of the system, a single chip microcomputer development system is adopted, the accuracy of a conversion circuit is improved, the cost is reduced, it is guaranteed that the automatic correction control system accurately and intelligently operates in real time, the response speed is increased, the system operates stably, the high anti-interference and reliability are achieved,and regular material winding and slitting in the production process can be guaranteed.

The invention relates to a contact suspension monitoring device for an overhead line system, and the device comprises a collector for monitoring the vibration data of a contact line and a gathering device for monitoring the state data of a carrier cable. The collector is installed on a contact line suspended wire clamp through a screw, and the gathering device is installed on the carrier cable through a clamping hoop. The collector and the gathering device carry out the data transmission through a connection cable or in a wireless communication mode. The device is simple in structure, is easy to use, is remarkable in technical effects, can be widely used for occasions of online monitoring product design of contact suspensions (carrier cables and contact lines), meets the working requirements of the outdoor environment of the overhead line system, achieves the real-time monitoring of the swinging, vibration, current and temperature of the contact suspensions (carrier cables and contact lines) and can provide reliable, accurate and complete monitoring data.

The invention relates to a vehicle real-time data acquisition system, a positioning verification method, and a mileage analysis method. The embodiment of the invention is advantageous in that: vehicle information captured by a front-end acquisition subsystem of a related time node is compared with the vehicle information uploaded by a vehicle-mounted acquisition subsystem at a cloud platform system, so as to judge whether the vehicle-mounted acquisition subsystem works abnormally or not, and ensure that the vehicle-mounted acquisition subsystem can effectively work in real time, accounting data of the cloud platform system is more accurate, and comprehensive control of vehicle operation data is promoted; by analyzing mileage of vehicles, working states of the vehicle-mounted acquisition subsystem are verified, and the travel charging of the vehicles is facilitated.

The invention discloses a multifunctional solid waste disposal cutter disk. The multifunctional solid waste disposal cutter disk comprises a rotating shaft and a second cutter disk. The lower end of the rotating shaft is provided with a rotating wheel. A first cutter disk is arranged below the second cutter disk. A third cutter disk is arranged above the second cutter disk. A fourth cutter disk isarranged above the third cutter disk. The two ends of the fourth cutter disk are both provided with blades. One side of the fourth cutter disk is provided with a separation disk. One side of the first cutter disk is provided with a silencer. The outer surface of an outer shell is provided with a water inlet and a water outlet. The inner surface of the outer shell is provided with a water storagetank. The multifunctional solid waste disposal cutter disk is provided with a rotating speed sensing mechanism, the separation disk and the water storage tank, the working rotating speed of a machinecan be detected in real time, the situation that solid waste enters the parts between every two adjacent cutter disks and the friction force is increased can also be prevented, the temperature in thecutting process is reduced, accidents are prevented, the multifunctional solid waste disposal cutter disk is suitable for different working conditions, and better application prospects are achieved.

The invention relates to an LED light intensity control system for airport navigation aid, which is suitable for the lighting field. The LED light intensity control system proposes an LED lamplight control solution based on an ordinary light modulator, realizes the control of an LED lamp, has requirement for real-time performance, and selects an ATMEL88 from the ATMEL company as a core controller.The LED light intensity control system adopts an LED light source, can reach the system requirements while reducing energy consumption, is simple in circuit structure, reduces the cost, ensures thatthe LED light intensity control system operates in real time and precisely, is stable in system operation, and has high anti-interference performance and reliability.

The invention discloses a method for correcting a time error between sub converters of a double-channel analog-to-digital converter on the basis of machine learning, which comprises the steps of: carrying out chopping on a total output of the analog-to-digital converter, then obtaining a signal with a phase different of 90 degrees from a chopping signal by a Hilbert filter, then multiplying the signal by an original analog-to-digital converter output signal to obtain a feedback signal component closely related to the error, and extracting a corresponding error component to obtain an error signal; injecting the error signal into a feedback loop, according to taylor expansion correlation calculation, obtaining a corresponding deviation of sampling time among samplers; and adding the deviation of the signals, which is caused by a time error among the plurality of samplers, into an original acquired signal, carrying out correction on the error and completing recovery of data.

The invention requests to protect a small-size distributed network clock synchronization system based on a field programmable gate array (FPGA), which relates to the distributed network synchronization technique. The synchronization system comprises a PC, a HUB and a distributed unit based on the FPGA; each distributed unit is provided with a general network interface; the fixed synchronization cycle time proposal is adopted to realize the clock synchronization of the small-size distributed network, enabling the system to reach the microsecond grade synchronization. The synchronization mode adopted in the small-size distributed network clock synchronization system is similar to the mode of the IEEE1588 standards; based on the high accuracy synchronization property of the IEEE1588 standards, the initial synchronization speed of the synchronization system is improved so that a distributed system which has the advantages of high initial synchronization speed and high accuracy clock synchronization is realized. The network clock synchronization system provides each composite unit of the distributed network system with synchronization clock used as the reference of the working clock ofthe system; thereby, the small-size distributed network clock synchronization system is applicable to the distributed network which has high real-time requirement for data transmission.

The invention relates to a thermal management control method for a multi-energy source fuel cell vehicle. Fuel cell vehicle thermal management system includes fuel cell subsystem, battery subsystem, supercapacitor subsystem, heat exchange subsystem and post-processing subsystem. The control method is based on the output current, output power and coolant outlet temperature of the fuel cell, storage battery and supercapacitor, and the heat required by the passenger compartment, in extreme cold mode, small cycle, medium cycle, large cycle and extreme heat mode Switch between thermal management system control methods. In each of the above modes, the controller of the thermal management system realizes the optimal efficiency of the power source by controlling the flow of coolant passing through each subsystem, and considers the fast response characteristics of the power source in a low temperature environment, thereby improving the economy of the fuel cell vehicle And fast response performance in low temperature environment.

The invention discloses an asynchronous processing method and device based on a neural network accelerator, and the method comprises the steps: generating an asynchronous request through a main thread according to an algorithm service demand, generating a corresponding handle number, generating a group of command words according to the generated service request, adding a command word queue, and querying the command word queue, and if only one group of command words exist currently, setting the group of command words to be in an execution state, starting a neural network accelerator hardcore, otherwise, setting the group of command words to be in an initial state and returning. And after the execution of the hard core is finished, generating hardware interruption, starting soft interruption, querying a command word queue, taking out command words from the queue if the command words exist, judging whether the command words are in an initial state, if so, setting the command words to be in an execution state and starting the hard core, and otherwise, deleting the group of command words from the queue. And the main thread queries whether the hard core of the operation is completed or not according to the handle number. According to the operation, the asynchronous operation process of a plurality of network algorithms is realized, the asynchronous operation is processed through hard core interruption, the network performance is accelerated, and the bandwidth occupied by a processor is reduced.

The invention discloses an external illuminator radar net error automatic registration method. According to the method, measurement information of all receiving stations is utilized for automatic registration, and under the condition that all the receiving ends can provide demodulation information of ADS-B (automatic dependent surveillance broadcast) or AIS (automatic identification system) and the like, if the demodulation information contains target state data detected by a radar, the data are used as reference data and compared with measurement data of the radar to obtain registration parameter estimators; if the demodulation information does not contain target state data detected by the radar, through measurement of multiple targets, a registration model is constructed, the registration problem boils down to the nonlinear parameter estimation problem, through a series of operations and rational approximation, the model is further converted to a quasi-linear model, and then least-squares estimation and post-processing are adopted to obtain registration parameters.

The invention discloses an asynchronous processing method and device based on a neural network accelerator. The method includes: generating an asynchronous request through a main thread according to algorithmic business requirements, generating a corresponding handle number, and generating a set of command words according to the generated business request, Join the command word queue, query the command word queue, if there is only one set of command words at present, set the set of command words to the execution state, start the hard core of the neural network accelerator, otherwise set the set of command words to the initial state and return. After the execution of the hard core, a hardware interrupt is generated and a soft interrupt is started, and the command word queue is queried. If there is a command word, it is taken out from the queue, and whether it is in the initial state is judged. If yes, it is set to the execution state and the hard core is started. Character. The main thread queries whether the hard core of the operation is completed according to the handle number. The above operation realizes the asynchronous operation process of multiple network algorithms, and handles asynchronous operations through hard core interrupts, which accelerates network performance and reduces processor bandwidth occupation.

The invention discloses a monitoring system for abnormal conditions in an elevator car, comprising at least one 3D somatosensory photography device arranged in the elevator car, and the 3D somatosensory photography device sends the collected original sensing data stream to a signal processing device; The signal processing device judges whether the passenger's behavior is abnormal or whether the passenger is in a dangerous state; when the signal processing device determines that the passenger's behavior is abnormal or the passenger is in a dangerous state, it sends an indication signal to the emergency processing device. The present invention is based on 3D somatosensory photography technology, which can not only enable passengers in accidents to be rescued in time, but also reduce the difficulty of rescue of trapped persons, and at the same time reduce and prevent the occurrence of violent incidents among passengers in the elevator car. The invention also discloses a method for monitoring abnormal conditions in the elevator car.

The invention provides an automotive body control system suitable for the field of automotive control. The control system mainly includes a control module, a driving module and a relay module. A 32-bit embedded microcontroller CCFC2002BC produced by Suzhou C*Core technology company is selected by the system as a core. The control system has high versatility, the control of interior and exterior lighting of an automotive, a central control door lock, wiper wash, electric heating door and window, rearview mirror, the lifting of electric window glass, remote control and the like can be achieved,in addition, the real-time, accurate and intelligent work with other control nodes can be achieved through a CAN bus interface.

The invention discloses a logistics sorting system. The system is characterized by comprising a recognition unit, an archival storage unit, a memory study unit, a control unit, a sorting device, a conveying device and a sorting way port; an intelligent algorithm is adopted, particularly, data a is input, a result y is output, the relation among a sorting algorithm F, a search algorithm S and knowledge analysis A is weighed, finally, output is determined through calculation recommendation, t is reaction time, and the formula: sigmaY=F(S(a)&A(a))%*t is met. The limit for packaged object specifications is greatly lowered, normalization of logistics information is greatly improved, the logistics distribution error rate is reduced, the defect that no corresponding distribution scheme exists inlogistics information transfer management is well solved, the self learning effect of real-time work and real-time updating is achieved, the accuracy of the logistics distribution scheme is greatly improved, and the sorting efficiency can be greatly improved by introducing the algorithm formula.

The invention discloses an open-circuit protection circuit of a solid-state power amplifier. The open-circuit protection circuit comprises a radio frequency link unit, a direct-current short-circuit antenna and a detection and control unit, the radio frequency link unit is electrically connected with the direct-current short-circuit antenna, and a connection line between the radio frequency link unit and the direct-current short-circuit antenna is externally connected with a detection and control unit; the detection and control unit comprises a high-frequency choke circuit, a pull-up circuit, a comparison circuit and an amplifier protection circuit; one end of the high-frequency choke circuit is respectively connected with the blocking capacitor and the direct-current short-circuit antenna, the other end of the high-frequency choke circuit is connected with the pull-up circuit, a connection point A in a connection line of the high-frequency choke circuit and the pull-up circuit is also connected with the comparison circuit, the comparison circuit is connected with the amplifier protection circuit, and the amplifier protection circuit is connected with the solid-state power amplifier. The problem of failure of the solid-state power amplifier caused by abnormal connection of an antenna, improper blind insertion and the like in array application of the solid-state power amplifier is solved.

The invention discloses a multimedia chip for assisting a hanger type positioning tracker and an assisting method thereof. The chip comprises an upper shell and a lower shell which can be separated; the shell is internally provided with cleaning cavities which are symmetrical in the left-right direction and provided with upward openings. A motor shaft is rotationally mounted on the bottom wall of the cleaning cavity; a sun gear is fixedly arranged on the upper side of the motor shaft; four gear shafts rotationally mounted on the bottom wall of the cleaning cavity are annularly arranged on the outer side of the motor shaft, planetary gears meshed with the sun gear are fixedly arranged on the gear shafts, and an annular inner gear ring meshed with the planetary gears is slidably mounted on the side wall of the cleaning cavity; according to the invention, the positioner is camouflaged and is hung on the ear, so that the positioner cannot be recognized, meanwhile, the positioner is not easily interfered by external force through the characteristics of the damping rotating shaft, and when the damping rotating shaft is interfered by too large force, the part hung on the ear is automatically separated, so that the human body is prevented from being hurt.

The invention relates to a PLC (programmable logic controller)-based control system for a vertical lathe. The PLC-based control system for the vertical lathe is applicable to the lathe control field.The control system is mainly composed of a soft PLC system, a C5116A vertical machine tool system, a software programming subsystem and a ladder diagram. An overall scheme in which the soft PLC is designed to perform numerical control transformation on a C5116A vertical lathe is designed, and therefore, a program can be greatly simplified, the number of input and output points is decreased, process costs are reduced, the requirements of the system are satisfied, the real-time, accurate and intelligent work of the system can be ensured, and a transformed lathe has high applicability and practicality.

The invention relates to a control system of a Delta converter-based UPS (Uninterrupted Power Supply) and belongs to the power supply control field. A new control method and topological structure areprovided for problems appearing in the work process of the system, and the instantaneous reactive power compensation effect and direct-current side energy balance control effect of a Delta converter are realized. The Delta conversion-based UPS (Uninterrupted Power Supply) has an uninterrupted power supply function and a power quality compensation function and can provide stable and efficient powerfor a load. The Delta conversion type UPS can act as a power quality compensator so as to compensate harmonic components, unbalanced components and reactive components contained in a power grid and the load. When the power outage of the power grid occurs, a main converter can achieve uninterrupted switching and full power operation of the power supply of a battery and the power supply of the power grid. The control system has the advantages of small power loss and high work efficiency.