118results about How to "Capacity balance" patented technology

The invention provides an equalization circuit of a battery pack and an equalization method. The equalization circuit comprises the battery pack, a battery management unit, a controllable bidirectional switch array module and an energy transfer module, the energy transfer module comprises a charging unit, a discharging unit and a super capacitor module; the controllable bidirectional switch array module is used for switching on or switching off the electric connection between battery cells and the super capacitor module according to an equalization control command of the battery management unit; the super capacitor module is used for charging and discharging the battery cells which meet equalization conditions; the battery management unit is used for controlling the voltage of the super capacitor module, making the voltage of the super capacitor module to be equal to the average voltage of the battery pack and sending the equalization control command to the controllable bidirectional switch array module to charge and discharge the battery cells which meet the equalization conditions. By means of the equalization circuit of the battery pack, the battery cells in the battery pack are equalized, and the equalization circuit of the battery pack has the advantages of being efficient, low in heat, long in service life and the like.

The invention provides a battery pack capacity equilibrium method. The battery pack capacity equilibrium method comprises the steps of recording a charging voltage curve of each single battery in a battery pack; recording the moment that voltage of one single battery reaches to pre-charging cut-off voltage Um as the full-charging moment t0 of the battery pack, and marking the single battery as a single battery 1; recording the voltage of other N-1 single batteries which do not reach the pre-charging cut-off voltage Um at the full-charging moment t0; calculating an estimated value of residual charging time; calculating estimated residual charging electric quantity of the N-1 single batteries; calculating equalizing current IE of an ith single battery according to the estimated residual charging electric quantity CRC of the ith single battery; performing equalization operation. By using the battery pack capacity equilibrium method, all of single batteries can achieve full-charging voltage after the battery pack is equalized, accordingly full equalization of the battery pack is achieved, and the capacity of the battery pack tends to maximum utilization.

The embodiment of the invention discloses a distributed file system capacity balancing method and device. All OSDs included in a storage pool are subjected to initialized PG distribution according to a crush algorithm, and the target average number of PGs in the storage pool is calculated; whether PG numbers corresponding to all the OSDs exceed the target average number or not is judged according to the PG distribution; if yes, it is shown that the PG distribution is not balanced at the moment, and the weights of the OSDs are adjusted according to a pre-stored weight adjusting command; every time the weights of the OSDs are adjusted, all the OSDs in the storage pool are subjected to the PG distribution again through the crush algorithm according to the adjusted weights, the adjusted PG distribution is obtained, whether the PG numbers corresponding to all the OSDs exceed the target average number or not is judged according to the PG distribution, if not, the weights of the OSDs stop being adjusted, and the PG distribution meeting capacity balance is obtained. Thus, by constantly adjusting the weights of the OSDs, the PG distribution is balanced, capacity balance is achieved accordingly, and the capacity utilization rate of a distributed file system is effectively increased.

The invention provides a vehicle cooperative adaptive cruise control method based on a variable time gap and interval strategy. A radar, a vehicle-mounted sensor and V2V (Vehicle-to-Vehicle) communication are used for determining a number of successive CACC (Cooperative Adaptive Cruise Control) vehicles which are in front of a current vehicle and are within a communication range of the current vehicle, and according to the number of the vehicles, different variable time gap strategies are adopted to determine an expected safe vehicle following interval, expected acceleration is then determined, and therefore, vehicle control is realized. The variable time gap of the invention flexibly changes along with the change of the speed of the current vehicle, a speed difference and the accelerationof a front vehicle, safety, vehicle following properties and a road traffic capacity in a driving process can be effectively balanced, in addition, vehicle cooperative driving can be controlled, a road traffic flow is improved, and journey time is shortened. Meanwhile, a vehicle speed change in the driving process is stable, and driving comfort can be improved.

The invention discloses a device, a system and a method for online storage migration of a virtual machine system. The method includes: copying files by controlling a first storage controller of a source storage device and a second storage controller of a target storage device, copying a master image file to the target storage device, recognizing whether the size of a slave image file accords with the terminate threshold condition or not, if yes, responding to the terminate threshold condition to stop the virtual machine system and migrating to the target storage device, and integrating the master image file and the slave image file to form a new system file. By using the storage controllers for realizing a migration mechanism of mass data copying operations, occupancy and dependency on resources of a physical mainframe by the storage migration method are avoided, influences on performances of the physical mainframe and the virtual machine system on the physical mainframe are weakened, and flexibility, rapidness and high efficiency in online storage migration of the virtual machine system are realized.

The invention relates to a dynamic regulation method for expressway toll stations and surrounding intersection groups. The method comprises the steps of dividing an overall road network of the expressway entrance and exit ramps, the toll stations and the surrounding intersection groups into: key subareas of the entrance and exit ramps and the toll stations and connected intersections and other intersection group subareas around the toll stations; establishing a self-adaptive cooperative control mechanism between the toll stations and the connected intersections at the toll station and connected intersection subareas and establishing a fuzzy logic control mechanism in the intersection groups in the other surrounding intersection group subareas; and calling a toll station traffic capacity regulating model to realize the dynamic adjustment of the actual traffic capacity of entrance and exit toll channels. The method disclosed by the invention has the beneficial effects that a cooperativecontrol model for dynamically changing the traffic rate of the expressway toll stations and the intersection groups according to different traffic states and an self-adaptive regulation model for dynamically changing the traffic capacity of the entrance and exit toll channels are firstly proposed; and the method is suitable for the cooperative control of regional road networks of the expressway toll stations and the surrounding intersection groups.

The invention relates to a method and a circuit for cascade compensation balancing of a battery pack, and the balancing method comprises acquisition of information of the battery pack, processing of the acquired information and implementation of balancing of the battery pack, wherein the implementation of the balancing of the battery pack is as follows: a controller is used for on-off control of a corresponding actuator so as to connect one or more continuous battery units which need to be balanced with a constant current source in series for forming a loop; and the balancing circuit comprises the controller, the constant current source and a plurality of trunk switches and branch switches, wherein the constant current source, the trunk switches and the branch switches are connected with the controller respectively, the plurality of the trunk switches are connected in series and then connected with the constant current source, and two ends of each trunk switch are connected with the battery units through the branch switches in parallel respectively. By adopting the method and the circuit, cascade compensation type balancing can be performed on any one or the plurality of the continuous battery units with lower voltage or smaller capacity in the battery pack, the balancing method for the battery pack is low in cost, non-destructive and active, and the balancing circuit is simple and easy to expand simultaneously.

The invention discloses an order scheduling, allocating and dispatching method and system. The method comprises the steps of obtaining an order product and the delivery time, and storing the order product and the delivery time in an order list; obtaining the available resource storage, resource priority and production takt of the order product and storing the available resource storage, the resource priority and the production takt in an available resource list; calculating the production delivery time of the order product according to the delivery time of the order product, taking the i-th order product, and performing trial scheduling in a range from the order delivery time to the production delivery time to obtain a trial scheduling result set; taking the n-th resource in the availableresource list of the i-th order product, carrying out trial scheduling on the current order product on the resource, and adding the trial scheduling result into the trial scheduling result set; and taking the j-th trial scheduling result of the i-th order product for comprehensive scoring, and taking the result with the highest score as the final scheduling result of the current order product. According to the present invention, a production line equalization algorithm with the weight as the core is achieved, the basic requirement of the reverse production scheduling according to the deliveryperiod is kept, and the continuity requirement needed by production is met.

The invention relates to a repairing system for lead-acid storage cells, which is formed by the combination of a cell equalizer and a desulfuration charger, aiming at the problem of the irreversible sulfuration of lead-acid storage cells, wherein the invention uses repair agent to repair, (or a series of repairing apparatuses to be matched with the repair agent for direct repair); the invention can refresh wasted vulcanized cells; the technology which is based on a principle of the self repairing or physical-chemical combination desulfuration realizes an aim of quickly eliminating the sulfuration. The invention has the advantages of more than doubling service lives of all lead-acid storage cells, prolonging driving distance of all vehicles and repairing all wasted lead-acid storage cells; moreover, the technology of the invention also has the advantages of simple operation, low cost, easy popularization, wide application range and obvious economic and social benefits.

The invention discloses a different-diameter screw cold feed vented extruder, comprising an extrusion screw comprising multi-step different-diameter screws, and an extrusion cylinder, a venting cylinder, a plasticizing cylinder, a feeding base and a thin through ring which are matched with the different-diameter screws, wherein for realizing the balance of production capacity, the screw thread external diameter of a working segment of the extrusion screw is different in steps, the extrusion screw can be an integral structure or a separate structure, the steps are threadedly connected with each other, a positioning segment for guaranteeing the concentricity of external diameters of two adjacent screws is designed, the combination of axial seal and end face seal is adopted for guaranteeing the sealing; screw heads are threadedly connected with a screw body at the metering section, and the screw body at the metering section is provided with a larger water channel. According to the invention, the different-diameter extrusion screw is adopted, the maximum production capacity of the first step cold feed screw using forced cold feed is released handily, the production efficiency of the cold feed vented extruder can be greatly raised, and the unit energy consumption can be reduced.

The invention relates to the technical field of secondary batteries, in particular to a balance method of the battery capacity of a secondary battery group, characterized in that a balance resistor network is adopted, and the balance resistor network is formed by using same resistors to connect the battery nodes in the secondary battery group and can adopt a common connection mode, a star connection mode or a triangular connection mode. The invention effectively balances the battery capacity of the secondary battery group, prolongs the service life of the battery group and decreases the replacement cost of storage batteries.

The invention provides a liquid flow frame assembly and a flow cell. The liquid flow frame assembly comprises a first liquid inlet, a first liquid outlet, a flow channel and reaction openings accommodating electrodes, the first liquid inlet or the first liquid outlet are communicated with the reaction openings via the flow channel, and the flow channel is an internal channel disposed between two opposite sides of the liquid flow frame assembly. Due to the fact that the flow channel is an internal channel disposed between two opposite sides of the liquid flow frame assembly, electrolyte can flow only in the liquid flow frame assembly, so that electrolyte is separated from an ion exchange membrane, the ion exchange between anolyte/catholyte and the ion exchange membrane is avoided, and thus the capacity equalization of anolyte and catholyte are guaranteed, the capacity of the flow cell is guaranteed, and the conductive performance of the flow cell is guaranteed. Also, the liquid flow frame assembly provided by the invention has the characteristics of simple structure and low manufacture cost.

The invention discloses a scheduling method applied to heterogeneous network enhancement mode interference coordination and an optimization method thereof. The scheduling method comprises the steps of adjusting an area expansion and throughput target of a micro-base station through a [eta] parameter; and introducing an expansion factor [zeta]m,tn of a user to improve a proportional fairness scheduling algorithm during an approximate blank sub-frame period. Therefore, the proportional fairness scheduling algorithm in which the area expansion and throughput target of the micro-base station is adjusted through the [eta] parameter is proposed; a problem of distinguishing a central trap, which the proportional fairness scheduling algorithm faces, can be avoided through the improved proportional fairness scheduling algorithm; and a capacity and load balance optimization method is provided based on the algorithm. The result shows that the algorithm can increase resource utilization rate of base stations and can realize load balance among the base stations.

The invention relates to an LTE230 power system private network optimization method, which solves the shortcomings of the prior art. The technical scheme of the invention includes the following steps:A, establishing an LTE230 power system private network, adjusting antennae and the transmitting power to achieve optimal coverage, and performing capacity balancing on a base station; B, performing interference positioning and investigation, and carrying out adjustment; and C, optimizing the system stability through main and backup configuration core networks. According to the scheme of the invention, the coverage optimization is firstly carried out, the optimization of service performance is secondly carried out on the basis of guaranteeing the coverage, and the overall optimization is finally carried out, and the effect of improving the data transmission reliability can be finally achieved.

This invention relates to a kinds of lithium/ferrous dioxide battery comprising: a positive pole, a negative pole and electrolytic solution system. Said positive pole is made of high purity lithium, and said negative pole is made of: ferrous dioxide 80-90 parts, acetylene-black 2.5-5 parts, graphite 2.5-5 parts, polyvinylidene fluoride 5-10 parts. Due to the production of pole sheet is under non-water condition, so the oxygenolysis of said ferrous dioxide is reduced with increasing electric property of the product. The battery with coated pole sheet gives less physical internal resistance, so it has the improved property of large current work. The thin film pole sheet can reduce current intensity per unit area, lower chemical reaction speed in the pole sheet, resulting through reaction, increasing the utilization rate of active substance of ferrous dioxide.

The present invention relates to an evacuation planning method and an evacuation planning system for disaster emergency. According to the technical scheme of the invention, a virtual force field is established and the complex large-scale evacuation problem is described through a force field function. Meanwhile, the evacuation direction of people is determined according to the negative gradient direction of the force field function. In this way, the problem that the modeling is difficult for the complicated disaster environment can be solved, so that the problem description is simpler. Meanwhile, the computational efficiency of an algorithm is simultaneously improved. Moreover, the following factors are taken into consideration for emergency evacuation planning: the positions of to-be-evacuated people, the distribution of evacuation shelters, the capacities of evacuation shelters and the like. Therefore, the timely evacuation and guidance is provided for the to-be-evacuated people. During the solving process of the algorithm, the real-time remaining capacity parameters of emergency evacuation shelters are adopted as gravitational coefficients, so that the capacities of emergency evacuation shelters are balanced during the entire evacuation process. Therefore, a large amount of evacuation time is saved. Along with the increasing state of evacuated people, the advantages of the algorithm are increasingly significant.

The invention provides a method for producing volatile fatty acid (VFA) through facultative anaerobic fermentation of kitchen waste. The method comprises the steps of pulverizing the kitchen waste into granules of which the diameters are less than 3mm, adding strains according to the volume ratio of the strains to the kitchen waste of 1: (1.5-2), adjusting the water content of the inoculated kitchen waste to 88-91%, mixing uniformly, performing the facultative anaerobic fermentation on the uniformly mixed kitchen waste at 34-37 DEG C, and adjusting process parameters according to the fermentation concentration. By adopting the method disclosed by the invention for hydrolyzing the kitchen waste, the time is short, the yield of VFA is high, and the hydrolysis rate is high; the kitchen waste can be efficiently recycled through the process for preparing marsh gas through anaerobic digestion after hydrolysis.

The preparation method for Li-ion cell plate comprises: coating and/or filling slurry contained active material on a collector body; drying, flattening by making plate pass gap between two rollers; wherein, before flattening, adjusting roller gap of two calenders as 1/2(D2+D1) <X<=1/10(D2+9D1); where, X for roller gap, D1/D2 for plate thickness before/after flattening. This invention can control plate thickness precisely, and prolongs cell service time.

The invention relates to the technical field of wireless communication, and in particular relates to a positioning terminal and a positioning method based on a wireless communication technology. The positioning process of the positioning method disclosed by the invention comprises the following steps: detecting the wireless beacon frame emitted by a wireless beacon at the position of the location through the positioning communication terminal, and sending out the detected wireless beacon frame; calculating the position of the positioning communication terminal. According to the positioning terminal and the positioning method disclosed by the invention, balance in the various aspects of capacity, power consumption, efficiency and the like is realized; the position wireless beacon only needs to periodically send signals, and the operation is simple; the positioning communication terminal does not need to temporarily break away from a network, the continuity of communication can be kept, the consumption of a battery is reduced, and the deployment amount of a mobile base station can be reduced; terminal time is uniformized through a time server, thus the terminal can delay reporting without losing location information, and can reduce reporting times.