7results about How to "Avoid frequent changes" patented technology

The present application belongs to the field of agricultural data processing and intelligent decision-making technology, and relates to a multi-source data-based intelligent decision-making method for water regulation and control of multiple cropping forage grasses. The method obtains soil moisture data, rainfall process data, evapotranspiration estimation data, soil texture data, previous crop straw residue data, and historical emergence feedback data, constructs a field water availability state vector, and performs data reliability evaluation, spatiotemporal consistency correction, and soil moisture level hysteresis discrimination to obtain a sufficient soil moisture level, a medium soil moisture level, or an insufficient soil moisture level. Then, the sowing period, sowing amount, and mixed sowing ratio are determined, straw mulching constraints are generated, and dynamic water monitoring and management are performed. The method can reduce the interference of short-term rainfall, local sampling anomalies, and surface water fluctuations on soil moisture judgment, match the sowing parameters of multiple cropping forage grasses with the field water maintenance capacity, and correct subsequent decisions through monitoring feedback.

The application provides a kind of dynamic selection method and system of ultra-wideband positioning base station, comprising: by mobile terminal broadcast query signal, collect the base station response message and corresponding RSSI reaching preset quantity;RSSI validity screening is carried out to the collected base station, and weak signal base station is eliminated;Effective base station is divided into odd-numbered base station group and even-numbered base station group according to the parity of its number;The strongest RSSI of the preset number of base stations is selected from the two groups respectively, and the final positioning base station combination is formed by merging, also includes smooth switching mechanism and GDOP check step.Through the staggered layout mode that odd-numbered base station is deployed on one side of scene and even-numbered base station is deployed on the other side, the application ensures that the selected base station is distributed on both sides of the tag from the mechanism, forms the positioning configuration of geometric distribution balance, effectively reduces GDOP value.At the same time, the cut-off mechanism of limiting the number of acquisition significantly shortens the positioning waiting time, improves the real-time performance of the system.

The application relates to the fields of logistics information technology and intelligent path planning technology, and particularly discloses a logistics path planning method and system based on cooperative distribution, which comprises the following steps: obtaining multi-agent distribution original data, obtaining a cooperative distribution record set through subject normalization and permission marking; performing order exchangeability analysis on the cooperative distribution record set to obtain an order exchangeability result; constructing a candidate handover network, and obtaining a stable handover node set through cooperative handover stability index evaluation and screening; performing order cooperation grouping on the stable handover node set and the order exchangeability result to obtain a cooperative distribution task cluster; performing joint path planning on the task cluster to obtain an initial path, and then obtaining an executable path result through path freezing and dynamic re-planning. The application realizes handover scheme stability pre-screening, goods risk control, subject income balance and local re-planning under dynamic disturbance without exposing original data of the subjects, and improves the fulfillment success rate of cooperative distribution.

The application relates to an engine starting control method and device for a hybrid vehicle, which comprises the following steps: after completing the current starting of the engine, if it is judged that the starting time data meets the predetermined condition, a first coefficient corresponding to the working temperature at the current starting of the engine is calculated according to the starting time data; if it is judged that the first coefficient determines that the clutch torque capacity adaptation needs to be adjusted, the clutch torque capacity adaptation corresponding to the working temperature is adjusted according to the first coefficient and a predetermined compensation amount, and the adjusted clutch torque capacity adaptation and the working temperature are stored correspondingly, wherein the adjusted clutch torque capacity adaptation is used for the next starting of the engine corresponding to the working temperature, so that the clutch torque capacity adaptation can be adjusted frequently, the clutch torque capacity adaptation can converge at different temperatures, and the driving performance is improved.

The utility model relates to the technical field of mining production, in particular to a filling roadway for mechanized mining of a hard rock mine, and aims to solve the problem that the overall efficiency of tunneling mining is affected due to the fact that the roadway is affected by more access roads, lack of a filling return air shaft, short access roads and the like when non-blasting mining is carried out on a non-coal mine by adopting a conventional drilling and blasting mode at present. According to the roadway, the mining filling roadway is arranged, parallel and continuous operation of the roadway is guaranteed, the situation that the mining filling operation position frequently changes along with the drift position is avoided, through air flow is formed through air inlet, air return and the mining filling roadway, the mining length is increased, continuous ore conveying is achieved through the belt conveyor, and the matching degree between mining and conveying is improved; after the mining machine excavates, the filling retaining wall support moves forwards, after the mining machine excavates to the air inlet roadway, the mining machine and the belt conveyor are withdrawn along the mining roadway, meanwhile, the filling retaining wall is built in the filling roadway behind the filling retaining wall support, and therefore rapid and efficient filling operation is achieved.

The invention relates to a noninvasive ventilation and thermal stimulation coordinated time sequence scheduling and safety interlocking method, which comprises the following steps of: when a system is powered on or reset, closing thermal stimulation output, setting a prohibition mark and invalidating a control right token; and collecting and updating the ventilation state according to a preset period, wherein the state information at least comprises a stable sign and an alarm sign. The thermal stimulus output state may be altered only when the token is valid. And when the stable mark is true, the alarm mark is false and the prohibition mark is not set, executing token handover: initiating an application, receiving a grant and feeding back confirmation, and enabling the token to take effect after the confirmation is completed. And if the alarm sign is true or the stable sign is false, a prohibition sign is immediately set, so that the token is invalid and thermal stimulation output is closed. During the setting period of the forbidding mark, forbidding the change of the thermal stimulation output state; and after a preset condition that the stable sign is true and the alarm sign is false is satisfied, the prohibition sign is cleared, the token handover process is allowed to be executed again, and cooperative control and safety protection are realized.

The utility model belongs to the technical field of column tube heat exchanger, especially a column tube heat exchanger baffle, including column tube heat exchanger body, the surface fixed mounting of column tube heat exchanger body has the protection shell, the inner wall fixed mounting of protection shell has the baffle, the surface of protection shell is opened the pipe hole, the surface of baffle is opened the flow guide hole, the side fixed mounting of protection shell has the flanging lug, the side of baffle is opened the flow guide groove. Fluid flows in the column tube heat exchanger body in the process, fluid will be guided by the flow guide groove of baffle one side, make fluid flow to both sides, and flow to the flow guide hole opened, reduce the stagnation zone, optimize fluid flow direction, and the drag reduction hole of water drop shape can reduce the resistance of fluid, reduce the generation of vortex, and reduce local resistance, make the flow velocity distribution more uniform, avoid fluid frequently changing direction, improve the heat exchange area, guarantee column tube heat exchanger heat exchange efficiency.