104results about How to "Realize seamless switching" patented technology

The invention provides a satellite link switching method, device, equipment, medium and product, and the satellite link switching method comprises the steps: obtaining ephemeris data of a plurality of low-orbit satellites reported by a star observation station and context information reported by a terminal, the plurality of low-earth-orbit satellites comprise a source low-earth-orbit satellite which establishes a user plane link with the terminal and a target low-earth-orbit satellite which is about to establish a user plane link with the terminal; according to the context information, determining receiving strength information of the terminal for receiving communication signals sent by a plurality of low-orbit satellites; and determining to switch a user plane link between the terminal and the source low earth orbit satellite to a user plane link between the terminal and the target low earth orbit satellite according to the receiving strength information and the ephemeris data. According to the embodiment of the invention, seamless switching of links between the terminal and the low-orbit satellite is realized, the reliability of satellite link switching and the continuity of services are improved, and the efficiency and reliability of the whole communication system are comprehensively improved.

The invention relates to the technical field of tunnel surrounding rock structure deformation measurement, and provides a tunnel surrounding rock structure deformation measurement system based on machine vision, a visual recording module performs multi-angle image recording on the position of a tunnel surrounding rock structure, and a data preprocessing module performs gray processing on the image transmitted by the visual recording module; the structure deformation analysis module obtains tunnel surrounding rock structure images under the safe condition, and compares and measures the characteristic value difference value of the two images according to the images transmitted by the data preprocessing module. The cross validation module verifies the analysis result of the multi-angle recorded image in the structural deformation analysis module, the early warning module performs early warning according to the verification result of the cross validation module, and the standby measurement module monitors the operation state of an industrial camera in the visual recording module in real time. When the industrial camera in the visual recording module cannot work, access is carried out; according to the invention, the requirements of real-time monitoring and accurate early warning of surrounding rock deformation in the tunnel operation process are met.

The invention discloses a power module seamless switching control method and system, and the method comprises the steps: obtaining the current output voltage of a power module in a low-voltage power distribution network, and carrying out the voltage distortion monitoring of the power module; if the power module generates voltage distortion and the distortion degree exceeds a preset threshold value, determining that the power module is a module to be switched; obtaining a current load parameter, and determining a switched target module from the standby power modules according to the load parameter; based on a preset control parameter library, control parameters of the target module are determined, and the target module is pre-adjusted; switching the to-be-switched module into an offline state, and switching the target module into a running state; and obtaining the current output voltage of the target module, performing transient response evaluation on the target module, and correcting the control parameters of the target module according to an evaluation result. According to the invention, intelligent seamless switching of the power module when voltage distortion occurs can be realized, and the power supply reliability of the low-voltage power distribution network is improved.

The invention discloses a vehicle communication network switching method and device, equipment, a storage medium and a product. The method comprises the following steps: acquiring first network state data of a current communication network of a vehicle and second network state data of a standby communication network in a historical time period according to current vehicle driving time; inputting the first network state data into a network state prediction model obtained by pre-training to obtain predicted network state data output by the model in a future time period; according to the predicted network state data, whether network switching is carried out on the current communication network of the vehicle is judged; if yes, determining a target communication network based on a network state prediction model according to second network state data of the standby communication network; and switching the current communication network of the vehicle to the target communication network. According to the technical scheme of the embodiment of the invention, the switching delay of the vehicle-mounted communication network is reduced, and the situation of communication interruption is avoided.

The invention discloses an RISC-V context switching optimization method and device and a medium, and belongs to the technical field of processors. The method comprises the steps of executing a current task based on the computing core; when a context switching operation is triggered, determining the residual space of the register stack based on the numerical value of the stack top register; judging whether the register stack can store the current task or not based on the residual space and the current task; if not, storing the current task based on the memory; if yes, storing the current task based on the register stack; and executing a replacement task based on the computing core, and switching back to the current task through the stack top register when the replacement task is completed. According to the method, the effect of improving the context switching speed in the RISC-V is achieved.

The invention relates to a positioning technology, and discloses a seamless indoor and outdoor positioning system of a conduction fusion integrated base station, which comprises a Beidou ground-based augmentation network, a mobile positioning terminal and a core cloud service, and is characterized in that the Beidou ground-based augmentation network is used for receiving and processing signals from Beidou satellites; the mobile positioning terminal is used for receiving signals of a Beidou satellite and a Beidou ground-based augmentation network, and the core cloud service is used for receiving positioning data uploaded by the mobile positioning terminal and providing accurate position information; the method has the advantages that the positioning precision is high, and the positioning precision and stability are improved by fusing multiple factors such as communication signal strength and base station position information; seamless switching: seamless switching of indoor and outdoor environments is realized, the situation of positioning interruption or jump is avoided, and the user experience is improved; and the cost is low: an integrated base station design is adopted, so that the hardware cost and the maintenance cost are reduced, and the economical efficiency of the technology is improved.

The invention relates to the technical field of power management control, in particular to a power management control system of a thermal infrared detection system. The power supply conversion and distribution unit is used for converting an external power supply into multiple paths of voltage and distributing the voltage for the first time; the voltage monitoring stability control unit monitors the power supply voltage state of each module in the system in real time; the current protection current limiting unit monitors a power supply current state in real time; the dynamic load regulation unit uses an entropy weight optimization load regulation technology to monitor the entropy change of load fluctuation and the power supply of a priority weight dynamic regulation module in real time; and the redundant power supply switching unit predicts the state change of the main and standby power supplies by using a nonlinear predictive switching optimization technology to optimize a switching path, and performs power supply switching according to the switching path and the switching time. The power supply management control system of the thermal infrared detection system dynamically distributes power supply resources through an entropy weight optimization load adjusting technology, and seamless switching of a main power supply and a standby power supply is realized through a nonlinear prediction switching optimization technology.

The invention relates to a database switching method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: identifying the type of a to-be-switched database; according to the type, dynamically switching data source configuration to obtain a data source corresponding to the type; the data source is a connection path and points to the database to be switched; and determining a database dialect class and a data access object corresponding to the type through the data source, and determining a corresponding connection pool from a connection pool configuration file to complete database switching. By adopting the method, the types of the databases can be seamlessly switched, the flexibility of business items is improved, and the development and maintenance cost of the business items is reduced.

The invention discloses a virtuality and reality combined method and system for dynamically reconstructing diversified network topology, and belongs to the technical field of novel power systems, and the method comprises the following steps: virtualizing physical equipment in a power system business scene network by using NFV to obtain virtual equipment; constructing a network architecture for realizing a service scene network of the power system by adopting a virtualization mode; physical equipment and virtual equipment in the service scene network of the power system are controlled in a centralized manner based on the SDN; and the SDN controller dynamically reconstructs the service scene network of the power system according to a set strategy. According to the invention, dynamic allocation of network resources and real-time reconstruction of topology are realized through a virtuality and reality combination technology, a software defined network technology and a network function virtualization technology, and virtualized resources and resources of physical equipment can be effectively integrated so as to quickly respond to changes of application requirements.

The invention belongs to the technical field of shared charging, and particularly relates to a charging robot layout method based on environmental perception, which comprises the following steps of: acquiring crowd distribution information in a region by introducing an infrared sensing module, planning an advancing path of a robot in combination with information of a position module, and identifying an optimal staying position by using an image acquisition module; and the robot can intelligently avoid the crowded area and select the most suitable place to provide service. And meanwhile, the electric quantity state of the robot is continuously monitored, the recharging process is automatically started when the electric quantity is lower than a preset threshold value, and seamless switching between the robot about to run out of power and the standby robot is achieved in combination with dispatching of the central control system. The method not only improves service efficiency and user experience, but also effectively avoids service interruption caused by insufficient power of a single robot, and ensures continuity and stability of service.

The invention belongs to the technical field of vehicle-mounted camera recording, and particularly relates to a multi-camera background recording method and system based on an Android 13 vehicle-mounted system, and the method comprises the steps: initializing camera management; periodically detecting the connection state of the camera, and when it is detected that at least one camera is connected, displaying real-time video preview of the connected camera on a user interface of the vehicle-mounted system; in response to user operation or vehicle-mounted system triggering, starting a background recording function of at least one camera; when the user exits from the preview interface or the vehicle-mounted system is switched to background operation, continuous operation of the background recording function is kept; when the user enters the preview interface again, real-time video preview of the camera is restored and displayed, and time information of continuous recording is displayed; and in response to the user operation, stopping the background recording function of the camera, and storing the recorded content to the external storage device. According to the invention, simultaneous preview and recording of multiple cameras can be realized.

The invention discloses a manager for an audio amplification hot backup system, which generates a detection signal according to a preset detection logic and sends the detection signal to a processing system, and the processing system comprises a main processing system and at least one backup processing system. The processing system generates a feedback signal according to the content of the detection signal and sends the feedback signal to the hot backup manager, and the hot backup manager obtains a detection result according to the content of the feedback signal and judges whether to switch a signal output channel of a local machine or output a switching control command to other equipment according to the detection result. The preset detection mode is any one or a combination of more of signal quality detection, network connection feedback detection and digital response detection, and the detection logic automatically switches proper system signal output according to the health condition of the main system and the standby system under the condition of default main system output, so that when the main system or the standby system has a fault, the system can be switched to the proper system signal output. And the other system can immediately take over the task and synchronously give out an alarm prompt.

The application relates to a double-nail-head carton nailing machine transmission mechanism capable of quickly switching between synchronous and separation modes, and relates to the technical field of carton nailing equipment. The double-nail-head carton nailing machine transmission mechanism comprises a carton nailing machine, an upper nail head mechanism and a lower nail head mechanism arranged on the carton nailing machine, and the upper nail head mechanism and the lower nail head mechanism are both connected with a transmission mechanism. The transmission mechanism comprises an upper nail head eccentric wheel, the upper nail head eccentric wheel is coaxially fixedly connected with an input shaft of the upper nail head mechanism, and the transmission mechanism comprises a lower nail head eccentric wheel, the lower nail head eccentric wheel is coaxially fixedly connected with an input shaft of the lower nail head mechanism. The application has the effects of simple structure, low cost and quick mode switching.

The invention discloses an indoor and outdoor cooperative positioning method, which relates to the technical field of high-precision positioning and is used for solving the problem of inaccurate positioning of an existing buffer area, and the method comprises the following steps: obtaining positioning data of Bluetooth positioning and Beidou positioning; performing unified processing on the positioning data to enable different positioning data to follow the same data standard; performing feature extraction on the positioning data after the unified processing to obtain feature data; according to the feature data, training through a BP neural network to obtain a positioning fusion model; and positioning the buffer area according to the positioning fusion model. The invention further discloses an indoor and outdoor cooperative positioning device, electronic equipment and a computer storage medium. According to the invention, positioning fusion is carried out through the BP network, so that the buffer area is accurately positioned.

The invention discloses a user management system and a method for realizing user management. The user management system comprises a mother system and at least two subsystems. The mother system comprises an account information management module, and the account information management module is used for storing and managing account information of the mother system and all the subsystems; the account authority management module is used for storing and managing authority types corresponding to accounts of the mother system and all the subsystems; and the user management service module is used for communicating with all subsystems in real time and controlling and scheduling the account information management module and the account authority management module. The subsystem comprises an account information registration and login interface module which is used for account registration and login. According to the invention, a user can log in other subsystems with related permissions based on the same account, and the effect of automatic synchronization of the subsystems during account information modification and account permission type change is also realized.

This invention discloses a boost DC bus voltage matching system for a motor inverter with dual high-voltage battery packs, comprising a battery management system, battery pack A, battery pack B, main negative contactor R2, main positive contactor R3, main negative contactor R4, a first voltage sensor, a first current sensor, a second voltage sensor, a second current sensor, a third voltage sensor, a vehicle control unit, a generator control module, an inverter, a generator, a relay Rb, current sensors a1, b1, and c1, a DC link capacitor bank CDC, a power inverter module, a motor controller, current sensors a2, b2, and c2, and a traction motor. The invention features a highly integrated hardware architecture, effectively reducing system cost and space occupation, enabling seamless battery pack switching during driving, effectively suppressing surge current, protecting high-voltage components and ensuring power stability, improving system fault tolerance, and enhancing the operational reliability of the high-voltage system.

The invention relates to the technical field of optical microscopic imaging, and discloses a scanning structured light microscopic imaging system and a scanning structured light microscopic imaging method of Airy beam and Gaussian beam superposed, and the Gaussian beam emitted by a laser light source sequentially passes through an electro-optical modulator and a lens group and is incident to a spatial light modulator loaded with an Airy beam mask plate; the spatial light modulator is used for modulating an incident Gaussian beam by adopting zero-order light to form exciting light formed by superposing an Airy beam and the Gaussian beam; exciting light sequentially passes through the 4F system, the X-Y scanning galvanometer, the scanning lens, the tube lens, the emission optical filter, the double-color piece and the objective lens and then irradiates a sample to be imaged; fluorescent light generated by a to-be-imaged sample passes through the objective lens and the double-color piece and then is transmitted to the photomultiplier tube for fluorescent light image acquisition. According to the invention, a light beam scheme of overlapping the Airy beam and the Gaussian beam is adopted, and the Gaussian beam is utilized to suppress the side lobe effect of the Airy beam, so that artifacts in Airy beam imaging are effectively removed, and the imaging resolution is improved.

This utility model relates to the field of waste removal technology for printing machines, specifically to a waste removal device for a label printing machine, including a mounting frame, a winding mechanism, and an auxiliary mechanism. The winding mechanism includes a rotating plate rotatably mounted on the mounting frame and two winding rollers rotatably mounted on the rotating plate. The auxiliary mechanism includes a sliding block, a tension spring, a cutter box, a sponge pressing block, a cutter plate, a sliding assembly, and a limiting assembly. The sliding assembly includes a guide groove, a second guide rod, a second spring, a counterweight rod, and a guide slide rod. When the front winding sleeve is full, the rotating plate rotates to switch the rear empty sleeve to the front working position and, in conjunction with the auxiliary mechanism, cuts the waste material without stopping the machine to change the roll. Before cutting the label waste, the sponge pressing block presses the waste material, causing the corner waste material to adhere to the winding sleeve, preventing the waste material from shifting during cutting and ensuring a flat cut. Under the guidance of the guide slide rod and the guide groove, the counterweight rod drives the cutter to slide and cut the corner waste material under the action of inertia, improving the cutting efficiency.

The invention provides a control method and device for supporting external auditing of solid-state power of an electromechanical system, and belongs to the overall technical field of electromechanical systems in the aviation technology, and the control device comprises an SSPC, a diode, a relay and a circuit breaker. The device is divided into a dual-redundancy automatic + manual override level, a single-redundancy automatic + manual override level and a single-redundancy automatic level according to safety levels from high to low, a redundancy control mode of a standard mode is formulated according to different failure probabilities and safety levels, the multiple redundancy switching problems of SSPC automatic control and manual override can be effectively solved, and the reliability of the device is improved. Seamless switching is achieved, the problem that the right cannot be handed over between redundancies is completely eradicated, transplantation is convenient, and external auditing of aviation electromechanical system solid state power control can be supported.

This invention discloses a method and system for low-Earth orbit (LEO) satellite communication based on dual-frequency dual-circular polarization beam scanning, relating to the field of LEO satellite communication technology. The method includes the following steps: a dual-frequency dual-circular polarization antenna unit performs identity matching verification based on satellite beacon signals transmitted by the LEO satellite to establish a communication connection with it; once the communication connection is established, the antenna unit adjusts and switches to the corresponding communication frequency based on satellite communication frequency band parameters, and simultaneously receives downlink data and transmits uplink data using dual-circular polarization mode; during data transmission, a feed phase control signal is generated based on satellite orbit parameters to adjust the beam pointing direction in real time; when the LEO satellite is about to pass over, the satellite beacon signal of the next LEO satellite is acquired to establish a communication connection and transmit data, thereby achieving seamless communication switching; through dynamic scanning and seamless switching of the dual-frequency dual-circular polarization beam, communication stability and data transmission efficiency are effectively improved.

The invention provides a communication method for IPV4 and IPV6 dual-protocol stack seamless switching of Internet of Things equipment, which comprises the following steps of: creating a user side virtual handle visible to a user side in a session layer between a transmission layer and an application layer; when a user side creates a session link with a target terminal with a target domain name on a session layer, if the current state is a default state or is switched to an IPV4 protocol stack state, executing an IPV4 protocol to carry out a communication process; and if the current state is switched to the IPV6 protocol stack state, executing an IPV6 protocol to carry out a communication process. According to the communication method for seamless switching of the IPV4 and IPV6 dual protocol stacks of the Internet of Things equipment, seamless switching of the IPV4 and IPV6 dual protocols is achieved, the use experience of a user side is improved, and the communication method has the advantages that the implementation process is simple, and configuration of the user side is simplified.

The invention relates to a metering data transmission method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring load information of a first communication link under the condition that a plant station side and a main station side in a power grid perform metering data transmission through the first communication link and a second communication link; under the condition that the load information of the first communication link meets a pre-switching triggering condition, switching target flow in the first communication link to a second communication link so as to transmit metering data through the first communication link and the second communication link; acquiring heartbeat information returned by the first communication link; and under the condition that the heartbeat information meets the fault switching condition, switching the residual flow except the target flow in the first communication link to the second communication link so as to transmit the metering data through the second communication link, thereby ensuring that the metering data is not lost and the service is not interrupted, and effectively improving the reliability of power grid metering data transmission.

The invention provides a subcarrier interval switching method and device, communication equipment and a storage medium, and relates to the technical field of communication, according to the subcarrier interval switching method provided by the invention, time slot adjustment can be performed on a plurality of subcarrier intervals, so that initial time slots of the plurality of subcarrier intervals are aligned with air interface time slots; and in response to the received signaling message, performing switching of different subcarrier intervals in the plurality of subcarrier intervals. According to the invention, seamless switching of subcarrier intervals can be realized, and the subcarrier interval switching efficiency is improved.

The invention provides a new energy power station management system, which comprises a dual power supply module, an energy management module, an energy recovery module and a power supply switching module, and is characterized in that the dual power supply module is used for obtaining state information of a power supply and sending a power supply switching instruction to the power supply switching module according to the state information, and the power supply comprises a main power supply and an auxiliary power supply; the energy management module is used for acquiring an operation mode and an energy demand prediction result of the new energy power station, and determining an energy supply strategy of the new energy power station based on the operation mode and the energy demand prediction result; the energy recovery module is used for obtaining recoverable energy generated in the operation process of the new energy power station and storing the recoverable energy into a battery according to an optimal storage strategy; the power supply switching module is used for receiving the power supply switching instruction and executing switching operation between the main power supply and the auxiliary power supply according to the power supply switching instruction, seamless switching of the main power supply and the auxiliary power supply can be achieved, the interest rate of energy is increased, and stable operation of the new energy power station is ensured.

The invention discloses a communication method and system of a vehicle-mounted passive optical network, and relates to the field of data transmission of optical communication. Establishing a communication relationship between the ONU and the standby OLT; the main OLT sends main and standby switching information to the standby OLT through a special main and standby switching channel; and the standby OLT confirms the ONU needing communication according to the main and standby switching information. On the basis of adding the standby OLT, the main and standby switching information is received and transmitted through the special main and standby switching channel, so that the redundancy protection range is expanded to the OLT domain control equipment, and the OLT domain control single-point fault can be avoided; moreover, the special main and standby switching channels can avoid the failure or timeout of protection switching caused by the transmission of the main and standby switching information from a communication channel for message transmission before the fault, thereby guaranteeing the timely transmission of the main and standby switching information, achieving the seamless switching between the main and standby OLT, and remarkably improving the switching efficiency and reliability.

The present invention belongs to the field of vehicle camera recording technology, and specifically relates to a multi-camera background recording method and system based on an Android13 vehicle system, including: initializing camera management; periodically detecting the connection status of the camera, and displaying a real-time video preview of the connected camera on the user interface of the vehicle system when at least one camera is detected to be connected; responding to user operation or vehicle system triggering, starting the background recording function of at least one camera; when the user exits the preview interface or the vehicle system switches to background operation, maintaining the continuous operation of the background recording function; when the user re-enters the preview interface, resuming the display of the camera's real-time video preview and displaying the time information of continuous recording; responding to user operation, stopping the camera's background recording function, and saving the recorded content to an external storage device. The present invention can realize simultaneous preview and recording of multiple cameras.

The present application discloses an address switching method, device, client and storage medium applicable to VPN. The method is applied to a client, the client is connected to a business server network, the client and the business server are both configured with an intranet Internet Protocol address and a public Internet Protocol address, the client is installed with VPN software, and is used to initiate a request to the business server through the intranet Internet Protocol address, VPN software and VPN server, or initiate a request to the business server through the public Internet Protocol address; the method includes obtaining a user request; according to the currently configured Internet Protocol address, replacing the Internet Protocol address requested by the user with the currently configured Internet Protocol address; in the case of an abnormal response to the user request, switching the currently configured Internet Protocol address; returning according to the currently configured Internet Protocol address, replacing the Internet Protocol address requested by the user with the currently configured Internet Protocol address. The use of this method can improve the efficiency of address switching.

The present invention discloses a multi-stage circulation organic waste gas treatment device and method thereof, which relates to the technical field of organic waste gas treatment, and includes a waste gas impurity removal device for removing impurities from organic waste gas. The present invention optimizes the replacement process of the gas separation membrane through the double-station design of the sliding plate, which not only greatly shortens the downtime of the equipment due to the replacement of the gas separation membrane, but also ensures the continuity and efficiency of the waste gas treatment process. At the same time, when one station is in working state, the other idle station provides sufficient space for the operator, so that the used gas separation membrane can be easily and quickly replaced without worrying about the limited operating space. In addition, the double-station configuration also gives the work higher flexibility, allowing the staff to flexibly arrange the replacement time of the gas separation membrane according to actual needs, further improving the efficiency and convenience of the overall operation.

A power switching system provided by the present invention comprises an input end of a signal acquisition trigger circuit 1 and an input end of a signal acquisition trigger circuit 2 connected to MAINDCX; an output end of the signal acquisition trigger circuit 1 is connected to the base of a triode Q4, and a collector is connected to the gate of a PMOS tube Q1 and a gate of a PMOS tube Q2; a source of the PMOS tube Q1 is connected to LI_VBAT, a source of the PMOS tube Q2 is connected to 4G_VBAT, a positive electrode of a diode D1 and LI_VBAT, a negative electrode of the diode D1 is connected to MAINDC4V2, a drain of the PMOS tube Q1 is connected to a drain of the PMOS tube Q2; an output end of the signal acquisition trigger circuit 2 is connected to the gate of the PMOS tube Q5, a source of the PMOS tube Q5 is connected to the source of the PMOS tube Q2, and a drain of the PMOS tube Q5 is connected to DC3V8. The present invention has low cost, high withstand voltage and fast switching speed.

The invention discloses a hybrid dimming system of a light emitting diode, which relates to the technical field of dimming of the light emitting diode and comprises a mode conversion module, a current reference module, a PWM (Pulse Width Modulation) processing module and a current driving module, the mode conversion module is mainly responsible for processing structure switching of index dimming and linear dimming, I2C dimming codes are input through the mode conversion module, high-precision LED current driving is achieved through PTAT current or CTAT current generated by the current reference module in combination with a feedback loop formed by a precise resistor and an operational amplifier, and particularly, the current conversion module can be used for driving an LED light source in a high-precision mode. In the zero-temperature-drift LED current driving realized in a simulation mode, the system adopts a zero-temperature-drift current source, the influence of temperature change on the LED current is effectively counteracted, the stability and the consistency of the LED current are ensured, the stability and the reliability of LED light emitting are improved, the service life of the LED is prolonged, and the cost is reduced. And the light attenuation and failure risks caused by current fluctuation are reduced.