30results about How to "Make the most of free time" patented technology

The invention particularly discloses a dependence-based parallel task packet scheduling method used on an isomorphic multi-core cluster server. Through calculating the dependence between execution paths and under the premise of not increasing the maximum loads of the execution paths, execution paths with large dependence are combined, compared with the original algorithm, the method can reduce unnecessary task duplication expenditure, communication expenditure between processors and the idle time energy consumption of the processors are reduced, the load of the processors is more balanced, and the overall energy consumption is lowered. The dependence-based parallel task packet scheduling method has the greatest features that the number of the processors is effectively reduced, the resource utilization efficiency is improved, the load of the processors is more balanced, and accordingly, the overall energy consumption is reduced.

The invention provides an edge computing-oriented federated learning method, which comprises the following steps that: all idle devices actively acquire a current global model from a server, asynchronously execute model training locally according to a preset optimization target, and upload the trained local model to the server; and the server receives the model formula uploaded by any one device and updates the global model by adopting a weighted average method. According to the method, asynchronous training and federation learning can be combined, in asynchronous federation optimization, allidle devices are used for asynchronous model training, a server updates a global model through weighted average, idle time of all edge devices is fully utilized, and model training is more efficient.

The invention relates to a parking space sharing management system which comprises a parking space leasing party mobile terminal, a parking space renting party mobile terminal, a gateway controller and a gateway.The gateway is electrically connected with the gateway controller and a vehicle detector.The gateway controller is connected with the parking space renting party mobile terminal.The parking space leasing party mobile terminal and the parking space renting party mobile terminal are both connected with a cloud platform server.The parking space sharing management system can further directly perform safe communication with the gateway controller by installing the gateway controller on the gateway through the mobile terminals, accordingly control opening and closing of the gateway and greatly improve the parking space utilization rate.

The invention discloses a method and device for generating a task scheduling plan in a scientific workflow in a cloud environment. The method includes the following steps: step 1, obtaining all tasks to be scheduled; step 2, using weighted directed The ring graph describes the tasks to be scheduled; step 3, in the directed acyclic graph, traverse from the start node to the end node to obtain all paths; step 4, calculate the time consumption of each path, according to the time consumption by Sorting all paths in descending order and determining the priority of the paths in descending order; step 5, generating a task scheduling scheme according to the priority order of the paths; the device includes a task acquisition module, a task description module, a node traversal module, a path sorting module and Program generation module. The invention can make full use of the idle time of the processor, improve the parallelism of scientific workflow task execution, improve the utilization rate of the processor, and shorten the completion time of the scientific workflow task.

The invention relates to the real-time dispatching of tasks in the field of a real-time system, in particular to a fault-tolerant low-power-consumption dispatching method applicable to a numerical control system. The method comprises the steps: before a task set is dispatched, calculating the quantity OCi of optimal checking points of a task Ti, wherein the distance between two checking points is Fi and the utilization rate of the task set is Utot after the checking points are inserted; calculating the operational speed Stemp of the tasks at the off-line state; calculating the executing time of the task Ti under the speed Stemp and ranking the task set according to the earliest deadline priority principle; when a task is finished, recycling the idle time STH (Ti, t) of the task and calculating the operational speed of the task by using the idle time STH (Ti, t). With adoption of the fault-tolerant low-power-consumption dispatching method, the idle time of the system is utilized sufficiently, the operational speed of a processor is reduced and the energy consumption is saved by 0-47.66% compared with the present fault-tolerant low-power-consumption dispatching method. Even though the task goes wrong during execution, the task can be correctly recovered and executed by a checking point mechanism and the reliability of the system can be improved.

The invention discloses an energy-saving scheduling method suitable for numerical control system periodic tasks. The method comprises the following steps: calculating the optimal operating speed S of each task Ti under an off-line state in a numerical control system, then calculating the execution time of the task Ti at the optimal operating speed S, and sorting a task set according to an earliest deadline first principle; when a certain task is finished, recovering the slack time Slack_Time of the task Ti, and using the slack time Slack_Time to calculate the operating speed S of the task under a specified continuous voltage of a processor; finally determining the preceding-part operating speed SL and the later-part operating speed SH of each task according to the operating speed S, so as to calculate the execution time ex.L of each task at the preceding-part operating speed SL and the execution time ex.H at the later-part operating speed SL, and scheduling the execution tasks according to the calculated real execution time, i.e. the ex.L and the ex.H. In such a way, the slack time Slack_Time of a system is fully utilized, the operating speed of the processor is reduced, and the aim of energy consumption reduction is achieved.

The invention relates to an MACA-U (Multiple Access Collision Avoidance for Underwater Wireless) protocol-based underwater acoustic network multiple-address accessing method. The method comprises the following steps in an RTS-CTS exchange process of a source node and a destination node, if the source node or the destination node receives an RTS transmitted by the other node, on the premise that the existing time of the source node or the destination node is enabled to not conflict, calculating the time when the source node or the destination node is suitable for the receiving of a data frame transmitted by the other node; replying a CTS to the other node, wherein the CTS comprises the time waited by the other node from the time when the CTS is received to the time when the data frame is transmitted, and the silence time after the time when the other nodes except the other node receive the CTS; after the other nodes receive the CTS, transmitting the data frame after waiting for some time according to the CTS.

The invention discloses a big data-based method and system for predicting the variable sliding time and relates to the field of civil aviation information. The method comprises the following steps: analyzing historical data in an airport collaborative decision-making system database, extracting flight departure operation data from the historical data, determining main influence parameters of flight departure, setting a weight value and dynamically adjusting a weight proportion; modeling by adopting a gradient boosting tree model to obtain a variable sliding time dynamic estimation model, inputting actual data of main influence parameters into the variable sliding time dynamic estimation model, estimating probability distribution of variable sliding time, and calculating an expected value;performing visual display on the variable sliding time. According to the method, the variable sliding time is intelligently predicted through manual prediction based on the constructed A-CDM system. The large-area flight delay is prevented and relieved through big data visualization auxiliary decision making.

The invention discloses an automatic computer power supply switching test system and method. The automatic computer power supply switching method includes S1, setting transmission periods of starting and shutdown signals through main units at a control end and transmitting the starting and shutdown signals to a signal control unit according to the transmission periods; S2, receiving the starting and shutdown signals transmitted by the main units of the control end through the signal control unit, converting the starting and shutdown signals into control signals and transmitting the control signals to a 220V power supply switching control circuit; S3, outputting 220V alternating current to main units to be tested by the 220V power supply switching control unit according to the control signals. By presetting testing periods, the starting and shutdown signals can be manually transmitted in real time or automatically transmitted at fixed time to the signal control unit, and the signal control unit correspondingly controls the 220V power supply switching control circuit to start power supply intermittently for the main unit to be tested after receiving the starting and shutdown signals of the main units of the control end. Besides, the automatic computer power supply switching test system and method can realize one-to-many power on-and-off test of the main units to be tested on a large scale, and labor cost is greatly saved. Leisure time can be sufficiently utilized, test period is greatly shortened, long-time multi-times testing is realized, and stability of products is improved.

The invention discloses a low-power dispatching method for periodic tasks with proportional idle time distribution, which comprises the following steps: before a periodic task set is started to be dispatched, calculating the total utilization ratio Utot of the periodic task set and calculating the offline speed Sof=max {Scrit, Utot}; sorting that periodic task set according to the principle of early deadline first EDF and inserting the set into the ready queue; When the i-th cycle task Ti is completed at time t, the next release time of Ti is recalculated and the idle time is recovered, and each ready task is allocated idle time in proportion to the worst case row execution time (WCET) of the tasks in the ready queue. When the ready queue is empty and the idle time is greater than the conversion overhead, the processor is turned off to conserve energy. The method can reduce the energy consumption of the processor as much as possible and improve the overall reliability of the system onthe premise of ensuring the schedulability of the periodic tasks. Simulation results show that this method is effective.

The invention discloses a preferred waiting method based on a WeChat platform, and relates to the technical field of Internet medical platforms, and the method comprises the following steps: S1, a patient enters a treatment process from the WeChat platform, and determines a set of possible diseases of the patient and departments and examinations needing to be treated by the patient according to the symptoms provided by the patient through intelligent treatment guidance; S2, the patient performs appointment registration and payment operation according to the intelligent hospital guide result;S3, after payment is completed, the preferred waiting model plans a reasonable treatment route for the patient according to the waiting demand of the patient, and has the beneficial effects that the preferred waiting system proposed based on the WeChat public platform saves a large amount of treatment time for the patient, improves the treatment efficiency of a hospital, improves the satisfactiondegree of the patient, and meanwhile, realizes reasonable allocation of limited resources.

The invention relates to the technical field of automobiles, in particular to a vehicle upgrading method, system and device based on a charging pile The vehicle upgrading method based on a charging pile comprises the steps that when the charging pile charges a vehicle, a charging pile system judges whether the vehicle meets a preset upgrading condition or not, and if the vehicle meets the preset upgrading condition, a software version of the vehicle is collected; whether the software version of the vehicle is inconsistent with a target software version of an OTA platform or not is judged, and if not, the charging pile system obtains a software upgrade package from the OTA platform; the charging pile system upgrades the vehicle according to the software upgrade package; and the vehicle is in wired connection with the charging pile, and the OTA platform is in wired connection with the charging pile. According to the method, the charging pile is in wired connection with the vehicle and the OTA system, so that the upgrading process is more stable, it can be ensured that the vehicle is in an unused state, and the idle time during charging is fully utilized.

The invention belongs to the technical field of aquaculture, and particularly relates to a method for river crab pond breeding and procambarus clarkii annual breeding. The method comprises the steps that firstly, a one-meter-high purse seine is arranged at 50-60 cm below the water surface of a pond, and a larval breeding area is formed; secondly, parent shrimp are put at the end of August or at the early September, wherein the weight of one parent shrimp is 40 g, and the female-male ratio is 3:1; thirdly, the shrimp and the crabs are fed with feed from the late September, and culturing is strengthened at the water temperature of 10 DEG C or above; fourthly, the postpartum parent shrimp are caught starting from November; fifthly, commercial river crabs are caught starting from the early November to the early January of the next year; sixthly, the shrimp and the crabs are fed with expanded sinking pellet feed at the end of the middle of March of the next year; seventhly, the commercial shrimp of 30 g or above are caught from the late April of the next year to the late August of the next year; eighthly, river crab larvae of 18 g are put in the middle of May, and fed with the expanded sinking pellet feed, the feeding amount is increased to 5% from 1.5%; ninthly, the commercial shrimp of 40 g are reserved to serve as the breeding parent at the late August, and the next round of larval shrimp breeding is started at the end of August or at the early September; tenthly, the river crabs start to be caught from the late October.

The invention discloses a pressed film sealing element sensor assembly workbench, and belongs to the technical field of sensors. The pressed film sealing element sensor assembly workbench comprises a base, two hydraulic cylinders are fixedly mounted on the upper surface of the base, movable seats are mounted on piston rods of the two hydraulic cylinders, heating blocks are mounted on two opposite side surfaces of the two movable seats, grooves matched with a sensor are arranged on the heating blocks, a sliding rail I is fixedly installed on the upper surface of the base, and three moving plates are slidably installed at the top of the sliding rail I through a sliding saddle I. According to the film pressing sealing element sensor assembling workbench provided by the invention, the sliding rail I is arranged, and the three moving plates with chucks are installed on the sliding rail I, so that when one chuck clamps the sensor for sealing operation, a worker can make preparations for the sensor to be sealed on the other two idle chucks, the idle time of the sensor in the sealing operation process is fully utilized, and the actual production efficiency is remarkably improved.

The prime number (PN) generation flow is that: The system generates a random number during idle, checks it with the Fermats theorem algorithm. If it is a PN, rechecks it with the Miller-rabin algorithm. If it still is, stores it into buffer for later use; if it is not, continues to circulate with preset longer step length. Whenever the system needs PN for encrypting, it picks them up from buffers. This invention uses the check method combining the Fermats theorem algorithm and the Miller-rabin algorithm and utilizes system idle time. These raise the processing speed and reliability.

The invention relates to a human-aided electric power and manual-power double-power coordination interaction body-building tricycle. The human-aided electric power and manual-power double-power coordination interaction body-building tricycle is designed into a right three-wheeled vehicle; a front wheel of the right three-wheeled vehicle is a rotating wheel; pedals are arranged on the left side and the right side of the front wheel; and the pedals are used for controlling the direction. A rider can do body-building exercises with both hands during riding and can transmit the force to the wheels to help an electric wheel to advance. A manual driving wheel is arranged on the left side of the right three-wheeled vehicle. The driving force depends on forward-backward motions of two handles; by means of a lever principle, a semicircular arc chain track and a semicircular arc chain are driven to move forwards and backwards in a repeated manner; and a flywheel (one-way wheel) does work in one way. The other end of a half axle is tightened together with a wheel so that the wheel and the half axle synchronously rotate and the wheel and the electric wheel mutually drive the vehicle to advance. During body-building or riding, the rider sits in a wheel seat above a main frame and the handles are shifted forwards and backwards and separated and closed in a right-and-left direction; both legs and both feet step forwards and are drawn back backwards and the body moves forwards and backwards with the seat; and the head, neck and upper body bend forwards and backwards to do reciprocating motion so as to achieve a good body-building purpose.

The invention discloses a segmented junk recovery method for a solid-state storage device. The method comprises the steps of adding a cache which difficultly loses data after power failure and is specially used for recovering service junk and migrating effective data, and temporarily storing the effective data needed to be migrated by utilizing the cache in effective data migration of junk recovery operation; when erasure operation is performed, in a way of setting a marker for marking a plane or a die in which a target block subjected to block erasure operation is located, feeding back junk recovery operation completion to an upper layer and continuing to make a response to a coming request, namely, not making a response to the request by the plane or the die, thereby avoiding a time delay of the response caused by the fact that a write request allocates idle pages of the plane or the die; and at gap time when read and write requests come, writing back the effective data migrated to the cache which difficultly loses the data after power failure to the solid-state storage device. According to the method, the time delays of read and write responses caused by junk recovery can be effectively shortened without influencing the junk recovery efficiency.

The invention relates to scheduling of accidental tasks of the field of embedded numerical control real-time systems, in particular to a dynamic-accidental-task low-power-consumption scheduling method based on a balance factor. The dynamic-accidental-task low-power-consumption scheduling method includes the steps that the tasks are added into a to-be-executed set, and when the tasks are released out of the set to prepare to be executed, the executed tasks are selected according to the EDF strategy; when the selected tasks are executed, the speed of a processor is newly set through the key speed strategy or the traditional DVS scheduling strategy judged with the balance factor method, the speed of the processor is momentarily updated when the tasks are executed, and the processor is closed when the tasks cannot carried out. Experiments show that the dynamic-accidental-task low-power-consumption scheduling method based on the balance factor is compared with the current existing DVSST and the DSTLPSA method, the energy saving effect is better, and energy consumption can be saved by 10.3% to 62.5% and 5.4% to 20.6% respectively.

The present invention relates to an underwater acoustic network multiple access method based on the MACA-U protocol, comprising: during the RTS-CTS exchange process between a source node and a destination node, if the source node or the destination node receives an RTS-CTS message sent by another node RTS, on the premise of ensuring that there is no conflict with the existing busy time of the source node or the destination node, calculate the time when the source node or the destination node is suitable for receiving the data frame sent by the other node; then reply CTS to the other node, in the CTS Including the time that the other node should wait from receiving the CTS to sending the data frame and the time that other nodes except the other node should be silent after receiving the CTS; after receiving the CTS, the other node waits for a period of time according to the CTS and then sends Data Frame.