53results about How to "Distribution science" patented technology

The invention provides vehicle scheduling, apparatus and system. The method comprises: order data information transmitted by an intelligent terminal of a driver is received in real time; according to the order data information, the internet-based hailing car number and order information at a corresponding traffic position are updated; the current internet-based hailing car number and order information at all designated hot regions as well as the historical order numbers of the designated hot regions are extracted from a database; according to the historical order numbers of the designated hot regions as well as the current internet-based hailing car number and order information, the quantity of demanding internet-based hailing cars of the designated hot regions is determined; the quantity of demanding internet-based hailing cars at the designated hot regions is stored into the database; and based on the quantity of demanding internet-based hailing cars at the designated hot regions, the internet-based hailing car number is scheduled. According to the method, apparatus, and system, the order data information can be received in real time; and with comprehensive consideration of historical orders, a driver can enter a hotspot region of an order in advance, thereby guaranteeing rapid order receiving for the passenger and thus improving the experience of the passenger.

The present invention relates to a single intersection signal lamp time control method and system, belonging to the traffic transportation control technology field. The single intersection signal lamp time control method and system divide vehicle queuing states into nk types according to four vehicle coming directions at the single intersection and the different numbers of queuing vehicles in each type of the vehicle queuing states, wherein n is the type of vehicle queuing length, k is the number of lanes at the single intersection; the number of traffic signal phases, the minimum time of each phase, the number of added time period of a green light and the length of each time period are taken as traffic behaviors; and learning is performed through adoption of the Q learning method according to the divided vehicle queuing states and the determined traffic behaviors. Through changing the definition of the state space, the vehicle queuing states divided by single intersection signal lamp time control method and system are more identical to the actual condition of the intersection to allow the time distribution of the green light to be more scientific.

The invention relates to a remote sensing monitoring pattern spot docking system and a using method thereof. The system comprises an infrastructure module, a data service module, a service support module, a business application module and a system performance module, wherein the infrastructure module comprises an operating system, a GIS platform, a database system, a storage device, a network device and a power supply device. According to the system, the problems existing in existing land annual change survey work content are solved, the system is a multi-level audit system, users mainly referto district-county and municipal multi-level users, each level of user is responsible for the respective work range and work responsibility, and that remote sensing monitoring pattern spot results are reported and audited smoothly is guaranteed, the function design and implementation of the whole business system are ensured to adopt a service-oriented system architecture, and flexibility and expansibility of system function implementation are fully ensured.

The invention discloses a single-channel real-time noise reduction method and a single-channel real-time noise reduction system. The single-channel real-time noise reduction method comprises the following steps: step 1, converting a noisy analog voice signal acquired by a single channel into a noisy discrete voice signal; 2, preprocessing the noisy discrete voice signal obtained in the step 1 to obtain a preprocessed noisy discrete voice signal; 3, generating algorithm selection parameters according to different background noises in the preprocessed noisy discrete voice signals obtained in thestep 1; selecting a noise estimation method according to the algorithm selection parameter, and processing the preprocessed noisy discrete voice signal through the selected noise estimation method toobtain a denoised time domain voice signal; and 4, converting the denoised time domain voice signal obtained in the step 3 into a signal with continuous time domain and amplitude. According to the invention, the noise estimation method can be adjusted in real time according to different background noises, and noise reduction processing is carried out on noisy voice signals in real time.

The invention relates to the technical field of intelligent networked vehicles, and aims to provide an arrangement method of intelligent networked vehicle test scenes in a closed test field, the closed test field comprises a plurality of test scenes for vehicle training, and the arrangement method of the test scenes in the closed test field comprises the following steps: dividing a plurality of typical scenes M, specifically refining a plurality of to-be-planned scenes N from the typical scenes M, wherein the typical scenes further comprise a plurality of characteristics used for meeting basictest requirements; associating each typical scene M with each to-be-planned scene N, and calculating a score; according to the final score, dividing the typical scene with high relevance and the scene to be planned into the same functional area, and obtaining the arranged closed test field through the divided functional areas, so that organization and implementation of different test scenes are facilitated, the construction time of different types of scenes is shortened, the construction cost is reduced, repeated arrangement of facilities and equipment is avoided, and the operation managementefficiency of a test field management unit is improved.

The invention relates to the technical field of modern toilets, and particularly relates to a toilet release prompting method and device. The method comprises the steps of acquiring the number of queuing people and the queuing time within a preset time period of a toilet; judging whether a release condition for releasing a new toilet is met or not according to the number of queuing people and thequeuing time; and sending a release prompting message for releasing the new toilet if the release condition is met. The implementation mode ensures an area with a great toilet demand to have enough toilet resources, thereby being capable of scientifically distributing the toilet resources, and improving the user experience.

The invention discloses an assessment method for a deep space exploration autonomous-navigation filtering algorithm. The method comprises steps as follows: firstly, acquired navigation data are processed with three navigation filtering algorithms, namely, EKF, UKF and UPF navigation filtering algorithms, respectively, assessment values of performance parameter indexes such as precision, availability, continuity, instantaneity, stability and the like under the corresponding navigation filtering algorithms are obtained respectively, and then a comprehensive assessment module assesses the deep space exploration autonomous-navigation filtering algorithm in combination with the assessment values of the performance parameter indexes, so that the comprehensive assessment module can scientifically and precisely allocate the relative weight among the various performance parameter indexes as well as accurately assess the deep space exploration autonomous-navigation filtering algorithm, and the method satisfies the demand of development of the current deep space exploration technology field.

The invention discloses a tobacco delivery vehicle dispatching system based on geographic region grouping and relates to the field of delivery in the logistics industry. According to the system, retailers are grouped according to geographic regions, and delivery loading modes self-adaptive to multiple delivery modes are adopted according to different daily delivery tasks to realize logistics delivery tasks; a complete data model and a modeling system are included; and first, a business demand is made to correspond to the data model, then business modeling is performed through business rules and system constraint rules, and then daily optimal delivery is executed according to changes of daily order modes. According to the method, a logistics delivery tasks allocation model is improved in combination with the status quo of logistics delivery, delivery loading dispatching based on geographic region grouping and supporting self-adaptability to multiple delivery modes is adopted, reasonable, flexible and scientific allocation of the delivery tasks is realized, the problems of workload unbalance, non-reasonability and the like in the delivery process are solved, logistics delivery cost is lowered, and delivery satisfaction is improved.

The invention discloses an optimal control system and method for variable-load economical operation of a boiler. The optimal control system comprises a fuel supply monitoring system, a fuel and load optimal distributing system and an auxiliary engine operation parameter setting system. The fuel supply monitoring system is composed of a coal heat value monitoring module and a coal flow monitoring module. The fuel and load optimal distributing system is composed of a boiler performance and state analysis module, a boiler operation curve fitting module, a fuel and load optimal distributing model module and a fuel and load optimal distributing scheme module. The auxiliary engine operation parameter setting system is composed of an induced draught system parameter setting module, an air supply system parameter setting module and a water system parameter setting module. The optimal control system for variable-load economical operation of the boiler can solve the problems that when existing boilers actually operate, most of the boilers operate deviating from an economical load area, and therefore the energy consumption of the boilers is high.

The invention relates to a method for efficiently recovering iron ore from gold extraction tailings of oxidized ore containing gold and iron, which belongs to the field of ore dressing and comprises the following steps of: (1) dispersing ore pulp, and adding a cosolvent or a dispersing agent for dispersing; (2) performing weak magnetic roughing to obtain magnetite rough concentrate and tailings; (3) performing high-gradient magnetic separation roughing to obtain limonite rough concentrate I and tailings; (4) externally adding micro-fine particle magnetite for size mixing; (5) performing high-gradient magnetic separation scavenging to obtain limonite rough concentrate II and tailings; (6) performing weak magnetic concentration: combining and mixing the magnetite rough concentrate with the limonite rough concentrate I and II to obtain magnetite concentrate and tailings; (7) grinding and dissociating the tailings in the step (6); and (8) performing high-gradient magnetic separation concentration: concentrating the tailings obtained in the step (7) to obtain limonite concentrate and middlings, and combining the middlings with the tailings obtained in the step (5) to serve as total tailings; according to the method, the micro-fine particle magnetite and the limonite can be effectively recycled.

The disclosed intelligent controller for urban sewage and waste gas flow comprises a sensor and a system controller, which is reasonable and benefit to control the exposure.

The invention provides a cooperative work and quality control method and a system. The method comprises: for each service, recording an expression for the standard time series representing the service in a database wherein the standard time series representing the service comprises a plurality of sequentially arranged events and time series operators connected among the events to represent the relationships of the events, each event is defined by event parameters and the event parameters comprise at least the time and data; in the service executing process, acquiring the data in real time; generating the expression representing the actually executed time series; automatically comparing by a calculating device the expression representing the actually executed time series with the expression for the standard time series recorded in the database; and when the two expressions are not consistent, positioning the events in the expressions that lead to the inconsistency and making a corresponding alarm. The method and the system of the invention are used to guide and create an information system to support the service operations and can compare the industrial standard service process with the actually executed service process so as to realize the automatic quality control.

The invention discloses a collecting device for thick oil in deep sea, and aims at reducing viscosity of high-viscosity thick oil during oil production, improving the flowability of the thick oil, and smoothly producing the thick oil deposit. The device comprises a main oil pipe, a hollow oil pumping rod and an oil well barrel; a water separating pipe is arranged on the oil well barrel; the lower end of the main oil pipe extends into the oil well barrel; a screw pump is arranged in the main oil pipe; a main working screw of the screw pump is connected with the oil pumping rod; a sand preventing sieving pipe is arranged at the inner lower part of the oil well barrel; a sieving pipe oil outlet is formed in the top part of the sand preventing sieving pipe and communicated with an oil inlet of the screw pump; a cable is arranged in the oil pumping rod; a power supply is connected to one end of the cable. The device has the beneficial effects that the thick oil can be reasonably heated, so that the viscosity can be reduced, and the thick oil can be produced conveniently; carbon dioxide and water vapor can be charged to reduce the viscosity of crude oil to be raised or the raised crude oil.

The invention discloses a viscosity reduction collection well. According to the viscosity reduction collection well, in the oil extraction process, viscosity reduction treatment can be carried out on thickened oil with the higher viscosity, and therefore thickened oil liquidity can be improved, and the smooth extraction of oil in thick oil reservoirs can be ensured. The viscosity reduction collection well comprises a main oil pipe, a hollow sucker rod and an oil shaft. A drilling riser is arranged in the oil shaft, and the lower end of the main oil pipe stretches into the oil shaft; a screw pump is arranged in the main oil pipe, and a main working screw rod of the screw pump is connected with the sucker rod; a sand-prevention screen pipe is arranged in the lower part of the oil shaft, and a screen pipe oil outlet is formed in the top of the sand-prevention screen pipe; the screen pipe oil outlet is communicated with an oil inlet of the screw pump, and a cable is arranged in the sucker rod; and one end of the cable is connected with a power source. The viscosity reduction collection well has the beneficial effects that the thickened oil can be reasonably heated, so that the viscosity of the thickened oil is reduced, and collection is facilitated; and carbon dioxide gas and water steam can be led into the well, and therefore the viscosity of crude oil to be lifted and crude oil in the lifting process can be reduced.