60results about How to "Guaranteed real-time availability" patented technology

The invention discloses a height control method and a height control system for an aerial vehicle. The height control method comprises the steps of 1), arranging a radar, an accelerometer, a barometer and a GPS module in the aerial vehicle; 2), in the flight process of the aerial vehicle, if the aerial vehicle is in an effective detecting range of the radar, the accelerometer, the barometer and the GPS module and performing fusion, performing fusion on the fused result and information detected by the radar; otherwise, performing data fusion processing based on the accelerometer, the barometer and the GPS module; and obtaining a current height, a current vertical speed and a current vertical acceleration; and 3), performing height control on the aerial vehicle according to the obtained current height, the current vertical speed and the current vertical acceleration. The height control system comprises a detecting module, an information fusion module and a height control module. The height control method and the height control system have advantages of simple control realization, high control precision, high stability, high adaptability, etc.

The invention relates to a method and device for tracing an online video target. The method comprises the following steps that image characteristics of a start frame in an online video are obtained and an initial background model is established; an image of a next frame is obtained; compared with the initial background model and the image of the next frame, so that a comparison result is obtained, and the initial background model is updated according to the comparison result; a foreground image is obtained and a foreground target is extracted; target characteristics are obtained through the online learning method and the foreground target is located so that the position information of the foreground target can be obtained; the position of the foreground target is marked and an image of a next frame after the marking is conducted is output; all the output image of the next frames are combined so that the moving trajectory of the foreground target can be obtained. According to the method for tracing the online video target, a real-time monitored video is processed, the target is traced at the first time, the phenomenon that the target is traced after all original video images are obtained is avoided, the instantaneity and effectiveness of data are guaranteed, and influence on the accuracy rate after multiple targets intersect and are blocked in an existing tracing mode is avoided.

The invention provides a control method and control device of an air conditioner and the air conditioner. The control method of the air conditioner comprises the steps that whether a temperature detecting device of the air conditioner works normally or not is judged; when it is judged that the temperature detecting device does not work normally, the current running parameter of the air conditioner is detected, and a database prestored in the air conditioner is searched for target outdoor temperature corresponding to the current running parameter according to the current running parameter; the real-time running frequency of a compressor of the air conditioner is controlled according to the target outdoor temperature. According to the technical scheme, the situation that due to the fact that the temperature detecting device breaks down, and the outdoor temperature at this moment cannot be acquired, the real-time running frequency of the compressor cannot be effectively adjusted, and the air conditioner cannot work normally can be avoided, and meanwhile the situation that due to the fact that the running frequency of the compressor exceeds the highest compressor running frequency corresponding to the estimated outdoor temperature value, the service life of the air conditioner is shortened is avoided.

The invention provides an air conditioner control method and device and an air conditioner. The air conditioner control method comprises the steps of judging whether a temperature detection device of the air conditioner normally operates or not; when it is judged that the temperature detection device does not normally operate, detecting current operating parameters of the air conditioner; according to the current operating parameters, searching a database prestored in the air conditioner for the target indoor temperature corresponding to the current operating parameters; controlling the air conditioner according to the target indoor temperature. According to the technical scheme, when the temperature detection device of the air conditioner breaks down, the current indoor temperature can be obtained from the database prestored in the air conditioner, the air conditioner is controlled according to the obtained current indoor temperature so that the air conditioner can normally operate, and therefore the problem that an existing air conditioner can only halt or operate at low efficiency is solved.

The invention discloses a method and system for air interface synchronization between base stations. The method mainly comprises the following steps that the base station to be corrected dynamically adjusts a local second synchronization period and the offset in the second synchronization period according to a first synchronization period and the offset in the first synchronization period which are issued by a reference base station, so that the time when the base station to be corrected monitor the fact that the reference base station issues a synchronization sequence according to the adjusted second synchronization period and the adjusted offset in the second synchronization period does not overlap with the time when the reference base station monitors the fact that other base stations issue synchronization sequences according to the first synchronization period and the offset in the first synchronization period, and therefore the effectiveness of the reference base station selected by the base station to be corrected can be guaranteed. Therefore, the reliability of air interface synchronization is improved.

The invention relates to a traffic security early warning method of a traffic control system on a highway; vehicle detectors are arranged on the highway; the vehicle detectors of all the vehicles are connected with computers so as to lead the computers to obtain output data of the vehicle detectors periodically and establish a data storage list of the vehicle detectors and a security early warning proposal list. After receiving an information packet, the data in the security early warning proposal list is removed; the data storage list of the vehicle detectors is updated according to the content of the received information packet; all data units in the data storage list of the vehicle detectors are searched one by one; key up stream and downstream vehicle detectors meeting the condition are determined; the time and position of possible occurrence of traffic accidents are calculated according the current collected data of the key stream and downstream vehicle detectors and writing the time and the position are written into the security early warning proposal list; if the security early warning proposal list does not have data in the period, the security early warning is not released; or early warning is released to the highway management department according to the time and the position of possible occurrence of traffic accidents in the security early warning proposal list; therefore, periodic and cycle early warning is executed.

The invention discloses a method for carrying out non-stop data migration by utilizing MySQL Binlog. The method comprises the following steps that a DTS is configured on a to-be-migrated source database, the DTS can migrate all data on the to-be-migrated source database to an intermediate database, and incremental data generated in the process of migrating all the data on the to-be-migrated sourcedatabase can also be migrated to the intermediate database through the DTS. In the present invention, an incremental data migration function is provided through DTS; the data generated by the servicein the non-stop period can be continuously written into the intermediate database; and the intermediate database continuously generates Binlog, the Binlog is consumed by a self-developed data conversion migration program through the Canal and the message queue, and finally, the Binlog is stored in the target database, so that no shutdown is realized in the whole process, namely, the service is not paused, and the real-time availability of the service is ensured.

The application discloses a new energy vehicle and an insulation detection method and a system thereof. The method comprises the following steps: inputting an original injection pulse to a new energy vehicle, and collecting a pulse signal currently output by the new energy vehicle to get a real-time recovery pulse; judging whether the voltage amplitude of the real-time recovery pulse is beyond a measurable range, and if the voltage amplitude of the real-time recovery pulse is beyond the measurable range, adjusting the voltage correspondingly to enable the voltage amplitude of the real-time recovery pulse fall into the measurable range; and judging whether the influence of the current voltage of a Y capacitor on the real-time recovery pulse can be neglected, and if the influence of the current voltage of the Y capacitor on the real-time recovery pulse can be neglected, determining a shortest pulse signal time for completing insulation detection, taking the time as the pulse time period of the current injection pulse, inputting an injection pulse corresponding to the pulse time period to the pulse input end, collecting a recovery pulse corresponding to the injection pulse, and calculating the value of insulation resistance according to the injection pulse and the recovery pulse. The insulation detection speed of new energy vehicles can be improved.

The invention discloses a magneto-rheological damper which damping force can be adjusted in two ways, wherein a cylinder is connected with an upper and a lower end covers, a piston rod is inserted in the steel cylinder through a sealing ring which is arranged on the end cover, a non-corrosive steel damping magnetic slab is mounted on two ends of a piston slab, a plurality of the piston slabs are provided and alternately sleeved on the piston rod with a magnetic core sleeve barrel, the end surface of each piston slab is summarily opened with two grooves along the axial direction, a permanent magnetic ring is inserted in the groove, and the outer lateral of a magnetic core sleeve barrel is winded with an excitation coil. The damper respectively realizes the largest output and the smallest output through adding with the forward current and the inverse current, not only guarantees the fail-safe (fail-safe) performance of the damper, but also effectively prevents the occurrence of locking phenomenon, on the other hand, the invention provides a novel design of a composite magnetic circuit, greatly simplifies the composite magnetic circuit structure when the permanent magnet and the excitation coil coexist, which is beneficial to the practical manufacture and installation of the damper.

The invention provides an algorithm and key library generation and updating method, and belongs to the technique of computer network communication and the field of information security. The method comprises the steps of generating an algorithm and key library through configuration of a safe management system, wherein the algorithm and key library is composed of an algorithm serial number, an algorithm, a key serial number, a key and a strategy identifier; calculating an increment factor according to the algorithm and key library and the initial version of the algorithm and key library, and issuing the increment factor to an encryption / decryption server; and generating the new version of the algorithm and key library by the encryption / decryption server through PCode operation according to the increment factor and the initial version of the algorithm and key library. The initial version of the algorithm and key library provided by the method is encrypted and then is stored in a database, the security is high and the storage quantity is high. According to the method, the increment factor can be generated randomly; the algorithm and key library can be updated flexibly; the algorithm and key library is safe and reliable; even if a key is intercepted by an attacker; data information contents will not be leaked; the cracking difficulty is increased; the security of data information transmission and user privacy is improved; and the method is high in popularization and implementation value.

The invention provides a server login method, a terminal and a server. The method comprises the steps that the information of a base station and the traveling trajectory information in a terminal preset period of time are acquired, wherein a mobile terminal currently accesses the base station; a login request is sent to the server, wherein the login request comprises a login user name which is determined according to the base station information and a login password which is determined according to the traveling trajectory information; the server authenticates the user name and the password; and a response message fed back by the server is received, wherein the response message is about whether login is successful. Due to the fact that the user name and the password are generated by the terminal in real time, the user name and the password are effective and unique in real time. After the server successfully authenticates the user name and the password, the terminal can successfully access the server. Automatic login of the server is realized. Input workload in a login process is reduced. Information leakage is avoided. Safe login of the server is ensured.

The invention relates to a fatigue driving early warning method and system based on a threshold system. The method comprises the following steps: collecting video data containing a driver face image and driver heart rate data in real time; carrying out data processing to respectively obtain eye behavior data and a heart rate index; carrying out data analysis, to be specific, according to a presetthreshold system, acquiring an eye behavior evaluation result and a heart rate index evaluation result; combining the eye behavior evaluation result with the heart rate index evaluation result to obtain a corresponding fatigue evaluation result; if the fatigue evaluation result indicates a critical or fatigue state, outputting a corresponding early warning control instruction; and if the fatigue evaluation result indicates a normal state, not outputting the early warning control instruction. Compared with the prior art, the provided method has the following advantages: the fatigue evaluation result can be accurately obtained in real time by collecting the eye behavior data and the heart rate data of the driver and based on the corresponding threshold value system; and the early warning device is combined to realize effective early warning of fatigue driving, so that high driving safety is guaranteed.

The invention relates to a method and system for reading article recommendation based on big data. Based on a big data approach and according to reading behavior data of a large number of students, such as states and behavior characteristics during reading, and states and behavior characteristics after the reading, an article selection model is generated; input characteristic data of a student individual is collected; reading materials are recommended for the student individual in a targeted manner based on the article selection model; through correlation with expressions, environmental factors and so forth during student reading, the student's knowledge level and homework completion situations can be further correlated, so that influences of external factors and the student individual's study situations on the student reading can be obtained; and meanwhile, the student individual is also taken as a sample to generate the article selection model, so the more accurate article recommendation can be achieved. The invention also provides a recommendation result detection mechanism, wherein reading results of the student are detected; the detection result is used to reflect recommendation accuracy; cyclic iteration of the article section model can be carried out; and real-time effectiveness of the article recommendation can be ensured.

The invention provides a high-precision screen printing screen plate scanning image registration method. According to the invention, based on own features of screen plate imaging, selecting a registration feature point suitable for the screen plate image feature; and then carrying out geometric transformation on the screen image based on a planar two-dimensional affine transformation method, so that the screen image has a good registration effect with the template image after transformation, the problem of large calculation amount is solved, overfitting is avoided, and the real-time effectiveness of registration is ensured.

The invention discloses a magneto-rheological damper which has high output, wherein a master cylinder barrel is connected with an upper and a lower end covers of the master cylinder, a piston rod of the master cylinder is inserted in the steel cylinder of the master cylinder through a sealing ring which is arranged on the end cover of the main cylinder, the invention also comprises an auxiliary cylinder inner barrel which is communicated with the master cylinder barrel through an upper and a lower channels, an auxiliary cylinder outer barrel which is sleeved on the auxiliary cylinder inner barrel, a plurality of auxiliary cylinder piston slabs and permanent-magnet slabs which are alternately sleeved on an auxiliary cylinder piston rod, the auxiliary cylinder piston rod is inserted in the auxiliary cylinder inner barrel through an auxiliary cylinder end cover, and a groove is opened on the auxiliary cylinder inner barrel and an excitation coil is winded on the groove. The damper greatlyimproves the proportion of the effective length under the condition that the whole length of the damping channel is determined, basically realizes that the full damping channel is effective, which are larger one time than the traditional shearing valve type magneto-rheological damper with the same size, and simultaneously the damper has great anti-settlement performance and fail-safe performance.

The invention discloses a high-voltage display early warning system for a static electricity removing device. The system comprises a circuit, wherein the circuit comprises an input protection device,an ion ionization conversion device, an ion output impedance conversion device, an ionization sampling device, an ionization output moisture-resistant and dust-resistant device, an isolation amplification device, a filtering and impedance matching device, an MCU processing device, a high-voltage display device and an early warning display device; the input protection device comprises an input overcurrent EMI protection device, the input protection device is electrically connected with the ion ionization conversion device, the ion ionization conversion device is electrically connected with theion output impedance conversion device, and the ion output impedance conversion device is electrically connected with the ionization sampling device; and the high-voltage display device and the earlywarning display device are both electrically connected with the MCU processing device. The system has the advantages of being good in dust resistance and moisture resistance, high in reliability, goodin safety performance and the like.

The invention discloses a dynamic image processing system and an image processing method, the dynamic image processing system comprises an image sensor and an FPGA connected with each other, the imagesensor comprises a register module and an image generation module, the image generation module is used for generating an image, and M register modes are stored in the register module; the FPGA comprises a clock module, a configuration module and a receiving and processing module, the receiving and processing module is used for receiving the image sent by the image generation module and processingthe image, M clock modes are stored in the clock module, and M configuration modes are stored in the configuration module, wherein the M register modes, the M clock modes and the M configuration modes are in one-to-one correspondence. The invention provides a dynamic image processing system and an image processing method. The FPGA and the image sensor are dynamically configured, and the transmission frame rate of the image sensor and the processing rate of the FPGA are sequentially changed in an extremely short time under the action of the configuration module in the FPGA, so that the processing capacity of the FPGA for the image sensor is improved.

The embodiment of the invention discloses a data synchronization method, device and system, equipment and a storage medium. The method comprises the following steps: determining a trigger state of each communication template according to currently acquired sub-equipment data and a trigger condition in a pre-configured communication template; and synchronously sending to-be-synchronized data specified by the communication template of which the trigger state is an activated state screened out from the sub-device data to a data server. Accorrding to the technical scheme, all currently acquired sub-equipment data does not need to be synchronized to the data server, the number of the to-be-synchronized data is reduced, the real-time effectiveness of data synchronization is ensured, the communication bandwidth of the to-be-synchronized data between the communication host and the data server is reduced, the data processing pressure of the data server is reduced, and the data synchronization efficiency is improved.

The invention discloses a service restoration method in a Gigabit Passive Optical Network (GPON). The service restoration method includes: S1 judging the variety of Management Information Banks (MIBs), and entering S2 if the MIBs are built locally, or entering S3 if the MIBs are built by an Optical Line Terminal (OLT), or entering S6 if the MIBs are extended Virtual Local Area Network (VLAN) marked operation configuration data or have multicast operational attributes; S2 storing the MIBs to MIB global variables; S3 judging whether to restore the MIBs in the message creating or arrangement format, entering S4 if the MIBs are restored in the message creating format, or entering S5 if the MIBs are restored in the message arrangement format; S4 restoring the MIBs in the message creating format; S5 restoring the MIBs in the message arrangement format; S6 updating the global variables one by one circularly and performing arrangement restoration; S7 updating logic code values of the MIB global variables in a database. The invention further discloses a service restoration system in the GPON. The service restoration method and system improve data restoration accuracy and avoid data loss.

The invention relates to the technical field of networks, and discloses a real-time communication platform based on processor nucleus dividing and a virtual machine, for providing a real-time communication capability for a distributed system composed of a Windows operation system, a TCP / IP protocol and an Ethernet. The real-time communication platform comprises a subsystem running on a time correction master node and a subsystem running on a time correction slave node, wherein the former comprises a real-time communication protocol stack master station module, a time synchronization algorithm master station module and an RTX equipment driving module; and the later comprises a VMM module, a real-time protocol stack slave station module and a time synchronization algorithm slave station module which support a real-time virtual communication machine. According to the invention, real-time and determined transmission of data can be finished by use of the real-time communication platform; the data real-time validity among applications is guaranteed, and support is provided for real-time data interaction of the distributed system; and on the basis of real-time communication, a high-precision real-time clock function is provided, through a built-in time correction mechanism, system-level high precision time is provided, the clock consistency of each node in the distributed system is guaranteed, and a consistent time scale is provided for the distributed system.

The invention discloses an electro-hydraulic conversion part fault diagnosis system for a DEH (Digital Electro Hydraulic Control System), and belongs to the field of digital electric-hydraulic controlof power station steam turbines. The electro-hydraulic conversion part fault diagnosis system for the DEH comprises a servo control clamping piece, an electro-hydraulic conversion part, a servo wireless diagnosis module, a mobile terminal and a service end; fault diagnosis parameters in the existing DEH / MEH (Micro Electro Hydraulic Control System) are optimized by utilizing the advantages of a fault diagnosis algorithm; the fault diagnosis parameters are optimized in the situation of ensuring normal operation of the existing diagnosis system; and the fault diagnosis parameters are updated periodically, so that fault diagnosis results are more accurate.

The invention discloses a non-perception user load interaction adjustment system, which comprises a user load acquisition device, a power grid terminal, an adjustment module and an energy storage device, wherein the user load acquisition device is installed on a line of a user ammeter side, is used for acquiring an electrical load of a user and is connected with the power grid terminal, the powergrid terminal is used for controlling the adjustment module to adjust the power transmitted to the user according to the power load of the user, the adjustment module controls the energy storage device to store energy on the power grid side or discharge electricity on the user side according to the received instruction, the energy storage device comprises a moving device, an energy storage box anda fire extinguishing system, and the energy storage box is installed on the moving device. According to the invention, user electricity load information is acquired through a user load acquisition device, so that a power grid is enabled to master the user electricity situation at the first time, the user load can be further adjusted in advance, and the user loss can be reduced; and through a fault detection device, the fault type is detected accurately, the device is simple, and the detection range is wide.

The invention discloses a thrown object detection method and system based on a semantic segmentation network, and particularly relates to the field of road detection. The system mainly comprises an offline modeling module, an online background acquisition module and an online throwing judgment module. According to the method, the thrown object is indirectly judged through judgment of the moving target instead of direct judgment of the thrown object, the pre-detection rate of the thrown object is increased, and meanwhile, the preset background image is updated by adopting double backgrounds anda background updating strategy; and through similarity judgment of the candidate judgment area and the candidate judgment area and the preset background image, double judgment is carried out, so thatthe judgment accuracy is improved.

The invention relates to a method and system for predicting the service life of a cutting platform based on a network model, and a readable storage medium. The method comprises the steps: setting a sampling interval, collecting cutting sound signals at different sampling time, and preprocessing the sound signals to obtain sound source information; comparing the sound source information with presetsound source information to obtain a deviation ratio; judging whether the deviation ratio is greater than a preset threshold value or not; and if yes, generating first wear information, and displaying the first wear information in a preset manner.

The invention discloses a device for automatically measuring the foam drainage time, and a using method thereof. The device for automatically measuring the foam drainage time comprises a foam collector, a drainage receiver is arranged at the bottom of the foam collector, and the side wall of the foam collector is connected with a support and provided with a weighing sensor module; and the support is provided with a screen and control unit integration module and a timer module, and the device is further provided with a power supply unit. The invention further discloses the using method of the device. To-be-tested foam is collected to the foam collector and adjusted to a preset position, a flow guide pipe is opened, an operation screen is operated and controlled, and finally the drainage time of target foam on the operation screen is read under the condition that a timer is disconnected. Through the device and the using method thereof, in the whole test process, the workload of testers is reduced to a certain extent, the real-time effectiveness, qualification and accuracy of measured data are also ensured, the purpose of automation is achieved, and the device has certain applicability.

The present invention relates to the technical field of aircraft, and in particular, the present invention relates to a method and device, a terminal and a mobile device for constructing a density distribution map of a target object. The method for determining a density distribution map of a target object includes: acquiring an image collected by a collection device in a target area; determining the density distribution information of the target object in the image to obtain a density distribution map of the target object; the spatial position information and attitude information of the image, and based on the spatial position information and attitude information, determine the projection relationship between the image and the plane coordinate system where the target area is located; The density distribution map is projected onto the plane coordinate system where the target area is located. Through the solution provided by the present invention, the position of the density distribution map of the target object corresponding to the image can be determined, which is beneficial to establishing the density distribution map of the target area.

The invention discloses a data integration system based on time sequence difference. When the data included in the statistics fluctuates, the corresponding data set is corrected in real time; the original data which does not meet the requirement is cut off through the time sequence difference, the real-time effectiveness of the data included in the statistics is kept, the effective integration of innovative resources is achieved, while the efficiency is improved, the advancement of data in all aspects with times is accurately considered, it is ensured that the follow-up integration processing result conforms to the actual situation, and an innovative development route can be planned easily.

The present invention discloses an intelligent archive sorting method. A password lock is required to be unlocked whether a person borrows an archive or returns an archive, and thus, the password lock is in a controlled state under any state, which helps to ensure the security of the storage of the archive. According to the intelligent archive sorting method of the present invention, a current unlocking behavior is judged through the unlocking instruction of the password lock, namely, whether the current unlocking behavior is an archive borrowing behavior or an archive returning behavior can be judged, and therefore, the real-time management and monitoring of the controlled archive can be benefitted.

The invention discloses a device and method for online monitoring of DC line loss, including a 5G signal detection unit: used to detect the real-time voltage and current of the input end of the DC grid transmission line and the output end of the DC grid transmission line through a voltage sensor and a current sensor; power supply Unit: used to provide the required energy for the 5G signal detection unit to detect data, the control unit to control the operation, and the 5G signal transmission unit to send data to the 5G line loss cloud data platform; 5G signal transmission unit: used to send the 5G signal detection unit to detect Real-time data to the 5G line loss cloud data platform; the control unit is used to control the real-time detection of the 5G signal detection unit, and control the 5G signal transmission unit to send the detected data to the 5G line loss cloud data platform in real time, and control the power supply unit in real time. The 5G signal detection unit, 5G signal transmission unit and control unit provide the required energy. The invention can quickly reflect the loss of the line in real time, and is beneficial to the real-time management of energy by staff.