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1547 results about "Utilization factor" patented technology

Utilization factor The utilization factor or use factor is the ratio of the time that a piece of equipment is in use to the total time that it could be in use.

Access point multi-level transmission power and protocol control based on the exchange of characteristics

A wireless access point and multiple wireless terminals exchange utilization, status, mobility and reception characteristics. Each wireless terminal generates reception characteristics based on transmissions received from the wireless access point and from other devices in the network. In one operating mode, the characteristics gathered by the wireless devices are forwarded to the wireless access point, and, based on all received characteristics, the wireless access point selects its own transmission power for different types of the transmission. In another mode, all characteristics are exchanged between every wireless terminal and the access point so that each can independently or cooperatively make transmission power control decisions. In a further mode, the wireless access point adjusts protocol parameters based on an assessment of the characteristics received from the client devices. The utilization, status, mobility, and reception characteristics include received signal strength, error rates, estimated battery life, availability of unlimited power, active versus sleep mode ratios, anticipated bandwidth utilization, coding schemes available, deterministic/non-deterministic requirements, encryption and security requirements, quality of service requirements, position, velocity, stationary status, etc. Gathering of such characteristics involves both retrieval of preset parameters from memory and generating parameters based on received transmissions (including test packets).

Load task migration algorithm for power optimization in marginal computing environment

The invention discloses a load task migration algorithm for power optimization in the marginal computing environment. The algorithm includes: monitoring in a marginal computing cluster to acquire CPU (central processing unit) utilization of nodes and temperature of the nodes; comparing the CPU utilization of the nodes and the temperature with preset thresholds respectively and determining all superload nodes; performing random arrangement on all the superload nodes to generate a superload node queue and generating a migration target queue according to migration targets; making a statistic of to-be-migrated tasks according to the minimum-number migration task principle and generating a to-be-migrated task queue; selecting the nodes with the shortest migration time in the new migration task queue and taking the nodes as the migration target nodes of the to-be-migrated tasks; generating a migration list according to corresponding relation of the to-be-migrated tasks and the selected target nodes to generate a task migration scheme. With the algorithm, violation and performance reduction in a service level agreement of the marginal computing system can be reduced, and task execution is enabled to be more equilibrium and efficient by equalizing power consumption of the marginal computing system.

Data buffering system with load balancing function

The invention provides a data buffering system comprising a data buffering manager, a data buffering library and a load balancing processor, wherein the data buffering manager receives a data acquiring request from outside, and responds to the data acquiring request to send a data acquiring command to the data buffering library to judge if the data buffering library preserves corresponding data, if the data buffering library preserves the corresponding data, the data buffering manager gets the corresponding data back, and if the data buffering library does not preserve the corresponding data, the data buffering manager sends a database server acquiring request to the load balancing processor; the data buffering library responds to a data storage command to store data which need to be buffered in blocks and pages and also responds to the data acquiring command to send the corresponding data to the data buffering manager; the load balancing processor responds to the database server acquiring request to provide a database server which processes fewest request to the data buffering manager, and the load balancing processor acquires data and returns the data to be stored into the data buffering library according to the information of the database server. The invention enhances the memory utilization factor, reduces the interactive communication capacity, decreases the using inquiry times and the magnetic disc access times and enhances the system stability and the system operation efficiency.

Coated fertilizer for inducing root growth and preparation method and application thereof

The invention discloses a coated fertilizer for inducing root growth and a preparation method and an application thereof, belonging to the field of fertilizer industry. The coated fertilizer comprises a fertilizer core and a coated layer, wherein the fertilizer core comprises organic matters, compound amino acid, humic acid materials, macroelements, secondary elements, microelements and an inorganic conditioner, the coated layer comprises a binder, a coated agent, a root system inducer, an alginate solution and a calcium ion solution. The preparation method comprises the following steps of smashing raw materials of the fertilizer core, after mixing, tabletting so as to form granulated fertilizer, spraying the binder, the coated agent mixed with the root system inducer, the alginate solution and the calcium ion solution on the granulated fertilizer sequentially so as to form a coated layer, and obtaining the coated fertilizer for inducing root growth after drying. On the one hand, the coated fertilizer can induce the root system to grow rapidly around the fertilizer due to the addition of the root system inducer, so that the fertilizer use ratio is improved; on the other hand, the fertilizer core is extruded and bonded by adopting a physical manner, so that the slow-release effect of the fertilizer core guarantees the fertilizer to be used efficiently.

Method and apparatus for distributing bandwidth

The invention discloses a bandwidth allocation method and a device thereof. The invention comprises the following steps that a bandwidth allocation state threshold value including a bandwidth availability threshold value is arranged; a current bandwidth allocation state including current bandwidth availability is determined; the bandwidth adjustment is performed according to the current bandwidth allocation state, to judge whether the current bandwidth availability exceeds the bandwidth availability threshold value, if exceeding the bandwidth availability threshold value and having a large bandwidth user, the bandwidth allocation of the large bandwidth user is reduced; after the bandwidth degression treatment to the large bandwidth user is performed or the large bandwidth user is not available, if the current bandwidth availability still exceeds the bandwidth availability threshold value, the bandwidth adjustment is stopped; if the current bandwidth availability does not exceed the bandwidth availability threshold value, the user bandwidth allocation with actual flow rate exceeding the current bandwidth allocation is improved. The use of the method can improve the bandwidth availability of a computer network, and can obviously improve the rationality of the bandwidth allocation under the condition of particularly applying in enterprises, network bars and other networks.

Multiple-target integrated control energy-saving method of electric power supply system for subway

A multi-object comprehensive control energy conservation method of a subway power supply system fully recovers and utilizes the braking energy, and overcomes the shock to the electric network caused by the energy fed back instantaneously through part of the absorbed energy and the feedback energy. When energy is required for starting or accelerating the train within the power supply section, two parts of circuits are comprehensively controlled to release the excessive electric energy with the aim of maintaining the basic electric energy storage of the independent condenser banks. During the running process of the trains, the advanced algorithm is adopted for reasonable energy distribution, thereby achieving the purpose of the optimal performance of the entire system, improving the utilization factor of the recovered energy and enhancing the energy conservation effect. The control system further detects the harmonic wave and the reactive component of other non-traction load of the traction substation, triggers an AC/DC converter module to compensate for the harmonic wave and the reactive component of the part, and avoids the pollution of the electric network so as to further reduce the loss caused by the harmonic wave and realize the control of the multi-object comprehensive energy conservation.

Frequency point allocation method and wireless network controller

The invention discloses a frequency point distribution method which is used in a multi-frequency point time division duplex system. The method comprises the following steps: an RNC (Radio Network Controller) receives same frequency and different frequency measuring results of service cells and adjacent cells reported by UE (User Equipment) and analyzes the measuring results and records of located zones of the UE to confirm the present located zones of the UE, including disturbed belts and undisturbed belts; preset optimal frequency points in the present located zones of the UE are selected based on priority and adopted as UE service frequency points. Based on preventing the service cells from same frequency disturbance of the adjacent cells as much as possible, the invention not only considers the distribution of frequency point resources of local cells, but also considers the distribution of the frequency point resources of the adjacent cells, and selects suitable service frequency points for the UE, thus improving communication quality and finally bringing optimal resource utilization and performance to the whole system. A radio network controller for distributing the frequency points for the multi-frequency point time division duplex system is disclosed either.

Information transmission method for reducing peak to average power ratio of orthogonal frequency division multiplexing signal

The invention discloses an information transmission method for reducing the peak to average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) signal. In the method, after being coded and interleaved, data stream is modulated by a new distorted constellation diagram so as to acquire a frequency domain signal; for the frequency domain signal, a phase rotation sequence is selected to reduce the PAPR of a time domain signal which is subjected to inverse fast Fourier transform (IFFT); at a receiver end, the received signal is subjected to fast Fourier transform (FFT) and channel estimation so as to acquire the frequency domain signal; for the frequency domain signal, recovering is performed by different phase rotation sequences so as to acquire candidate signals; amongthe candidate signals, only the signal which is recovered by the right phase rotation sequence has a minimal mean square error when the signals are subjected to hard decision together with the constellation diagram; and the candidate signal which has the minimal mean square error is selected as the original signal, and the corresponding phase rotation sequence is the recovered side band information. The method can effectively reduce the peak to average power ratio of the OFDM signal, does not need to send the side band information simultaneously, improves the frequency band utilization ratio of systems, and can be applied to various communication systems using OFDM technology.
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