47 results about "Historical distribution" patented technology

The invention provides an online order distribution and delivery method based on a scoring mechanism and path planning. The method comprises the following steps: firstly, orders in a certain time range of the same region are merged through a clustering algorithm; then, the historical distribution information of the rider is obtained by mining the historical distribution data of the rider in the order platform, and whether the rider matches the sub-orders in the order set is calculated; then the scores of the riders are calculated in the set of matched riders; the distribution information is preferentially pushed to the matched first rider with the highest score, and if the rider gives up, the distribution information is pushed to the matched second rider with the second highest score, andforwarded three times in the same way, and if no one takes orders, the distribution information is distributed to the snatching pool for the matched rider to snatch orders; finally, the route distribution scheme of the received single rider is determined by the cultural genetic algorithm. According to the order distribution and distribution method of the invention, the order distribution balance can be maintained while the customer experience is guaranteed, the distribution cost is further reduced, and the distribution efficiency is improved.

The invention discloses a siting method of distribution centers. The method includes the steps of firstly, optionally selecting m sites as candidate sites of the distribution centers on a map of a target city; secondly, assigning historical distribution sites to the candidate sites of the distribution centers the nearest to the historical distribution sites according to the distances from the historical distribution sites to the candidate sites of the distribution centers; thirdly, calculating an average site of the distribution site assigned to the candidate site of each distribution center as a new candidate site of the distribution center; fourthly, repeating the first and second steps till a standard measure function starts converging and the m average sites being the sites of the distribution centers. By siting by the siting method, the distribution sites of the distribution centers are as compact as possible, and the distribution centers are as separate as possible. Finally, distribution cost is locally optimized.

The invention discloses an ocean internal wave forecast method based on a synthetic aperture radar image and an internal wave model and relates to the technical field of physical oceanography and information processing. The ocean internal wave forecast method comprises the following steps of: building a two-dimensional transmission model based on the ocean internal wave according to an ocean internal wave parameter inverted from an ocean internal wave image of a satelliteborne synthetic aperture radar as well as submarine topography data and pycnocline historical distribution of a region where an internal wave exist; forecasting a position, a shape, a speed, an amplitude and wavelength information of the ocean internal wave after a certain time; and drawing an internal wave ridge line distribution graph at a certain moment when forecast is required according to the acquired information. The internal wave forecast method is simple and reliable.

The present invention relates to a method for calculating the power grid operation evaluation index dimensionless. The method comprises the following steps of 1) inputting the current data of an index from a power grid real-time database and inputting the historical data of the index from a power grid historical database to form an information database; 2) setting the interval number of the index and the index threshold values corresponding to the upper and lower limits of each interval; 3) analyzing the historical data of the index and counting the number of the historical data of the index within different intervals; 4) positioning the position of the current data of the index in a histogram by a historical distribution histogram of the index and the current data value of the index, and separately calculating the out-interval ranking rate and the in-interval ranking rate of the index to obtain the current ranking rate of the index; 5) setting the index scores corresponding to the upper and lower limit threshold values of the different intervals of the index, considering the distinction of a maximum index and a minimum index, and calculating the offset amount of the current ranking of the index. The calculation method of the present invention is simple in flow, small in computation amount and development difficulty and strong in practicality, and the definition of an intermediate result during the calculation process is clear.

The invention provides an order distribution method and device, and relates to the field of order distribution. The order distribution method firstly acquires the distribution information and the order distribution amount of the target order, and then, according to the order information of the target order and the association degree of the historical distribution of the rider, calculates the accepting the order probability of the target order under the order distribution amount of the candidate rider in the target order as a constraint condition and finally determines the push object accordingto the joint probability. Since the historical rider distribution reflects the preference of the candidate rider for certain orders, the preference degree of the candidate rider on the target order by means of the historical rider distribution (the preference degree is represented by the accepting the order probability) can be deduced, after the preference degree of the candidate rider on the target order is determined, the target order can be pushed to the rider with more interest in the target order, and the order distribution amount can be controlled to a certain extent, and the order probability of the rider can be improved.

The invention discloses a logistic network load query method and system. The logistic network load query method comprises that a logistic network load query request is received, and a logistic object C and a logistic line L corresponding to the query request are determined; the delivery amount M(u) of a random user u within a target time period Ta-Tb is estimated according to historical sales data; the distribution amount M(u, L) of M(u) in the logistic line L is calculated according to historical distribution of consigner and consignee addresses of the user u; the distribution amount M (u, L, C) of the M (u, L) of the logistic object C is calculated according to the historical distribution of logistic objects selected by the user u; and sigma M (u, L, C) is calculated aimed at the logistic object C and the logistic line L, and the calculation result is used to respond to the query request.