JP2011048434A - System for providing power feed stand utilization situation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a system for providing an accurate utilization situation of a power feed stand. <P>SOLUTION: The system includes utilization situation recording means 1, 3 for collecting utilization situations of power feed stands existing within a plurality of regions for performing statistical processing and recording changes in the utilization situations of the power feed stands, region situation recording means 2, 4 for collecting situations of regions affecting the utilization situations of the power feed stands for performing statistical processing and recording a change in the regional situation, operation means 5, 6, 7, 9, 10 for computing changes in the utilization situations of the power feed stands not affected by the change in the regional situation and a change in the amount of an influence to the change in the regional situation to the change in the utilization situation based on the changes in the utilization situations recorded in the utilization situation recording means 1, 3 and the changes in the regional situations recorded in the regional situation recording means 2, 4, and an estimation means 11 of estimating the utilization situations of the power feed stands corresponding to designated search conditions based on the change in the utilization situation and changes of amounts of influences computed by the operation means 5, 6, 7, 9, 10. The system provides the estimation result, namely the utilization situations of the power feed stands. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a system that provides usage status of a power supply stand.

  There is known a power supply station information providing system that distributes information on a power supply station that exists within a range in which the vehicle can run with the current remaining battery level (see, for example, Patent Document 1).

JP 2007-148590 A

An EV (Electric Vehicle) vehicle takes time to supply power, and the number of power supply stations is smaller than that of a conventional fueling station, and the location is limited.
However, in the above-described conventional power supply station information providing system, the location of the power supply station and the presence / absence of business can be known, but there is a problem in that the usage status of the power supply station such as empty information of the power supply cannot be grasped. .

The present invention collects usage statuses of power supply stations existing in a plurality of areas, statistically processes them, records usage status recording means for recording changes in the usage status of the power supply stations, Regional situation recording means for collecting and statistically processing the local situation and recording changes in the local situation, changes in the usage situation recorded in the usage situation recording means, and changes in the regional situation recorded in the regional situation recording means Based on the above, the calculation means for calculating the change in the usage situation of the power supply station that is not affected by the change in the local situation and the change in the degree of influence of the change in the local situation relative to the change in the usage situation, And an estimation unit that estimates the usage status of the power supply station corresponding to the specified search condition based on the change in the degree of power, and provides the usage status of the power supply station as an estimation result. Is the use status providing system.
In addition, the usage status of the power supply station includes the free time information of the power supply unit of each power supply station, or the status of each region includes event information for each region. A guidance route is included, and the estimation means estimates the usage status of a power supply station existing in the vicinity of the guidance route.

  ADVANTAGE OF THE INVENTION According to this invention, the exact usage condition of a power supply stand which considered the local condition which affects the utilization condition of a power supply stand can be estimated, and electric power feeding with little waiting time can be enabled.

The figure which shows the structure of the feed stand utilization condition provision system of one Embodiment The figure which shows the detailed structure of the influence separation part 5 of a regional condition The figure which shows the detailed structure of the utilization condition data estimation part 9 after influence removal The figure which shows the detailed structure of the influence degree estimation part 10 to utilization condition data. The figure which shows the detailed structure of the utilization condition data estimation part 11 under designated conditions The flowchart which shows the operation | movement which searches a power supply station by the power supply station utilization condition provision system of one embodiment. The flowchart which shows operation | movement in the case of providing the utilization condition of the power supply stand of the guidance path | route vicinity to the destination by the power supply station utilization condition provision system of one Embodiment.

  FIG. 1 shows a configuration of a power supply station utilization status providing system according to an embodiment. The power supply station usage status providing system according to the embodiment includes a usage status DB (Data Base) 1 storing power usage status data, a regional status DB 2 storing regional status data, and statistical processing of power usage status data. Usage status data statistical processing unit 3, regional status data statistical processing unit 4 that statistically processes regional status data, regional status impact separation unit 5 that separates the local status from the usage status statistical data of the power supply station, the impact of the local status Usage-removed usage statistics DB 6 that stores usage status statistical data of the removed power supply station, usage-level statistics data DB 7 that stores the degree of influence on the power-supply station usage status data for each regional status statistical data, search Condition specifying unit 8, influence removal usage situation data for estimating usage situation data of the power supply station from which the influence of the local situation has been removed Estimating section 9, influence degree estimating section 10 for estimating the influence degree of the local situation on the use situation data of the power supply station, the use situation data estimated value of the power supply station at the designated prediction area and the prediction time, and the prediction area And the power station usage status data estimator 11 under the specified conditions for estimating the power station usage status data based on the estimated influence value of the local status at the predicted time, and the power station usage status data under the specified conditions of the estimation result The usage status data distribution unit 12 is provided.

  The usage situation DB 1 feeds the usage status data of the power supply station (number of power supply stations used, usage rate, power usage, power supply type, usage time, usage location, waiting time until the start of power supply, idle time of the power feeder, etc.) Collect and store from stand, TSP (telematics service provider), EV, etc. The usage status data statistical processing unit 3 inputs the usage status data of the power supply station from the usage status DB 1 and statistically processes the usage status of the power supply station in units of season, month, day, day of the week, and time for each power supply type and location. . On the other hand, the regional situation DB 2 collects and stores regional situation data (local events, weather, seasons, dates, places, etc.). The regional situation data statistical processing unit 4 inputs the regional situation data from the regional situation DB 2 and statistically processes the regional situation for each weather, place, and event by season, month, day, day of the week, and time.

  FIG. 2 shows a detailed configuration of the regional situation influence separation unit 5 that separates the local situation from the power supply station usage situation statistical data. The data calculation unit 51 for each regional situation uses each regional situation statistical data to determine the presence / absence of each regional event, season (spring, summer, autumn, winter, etc.), month (January to December), day of the week. It is extracted how each power-stand usage status statistical data changes for each (day to Saturday) and for each time zone (0 to 24:00). The correlation calculation unit 52 compares the data change with the average value of the power supply station usage status to obtain a correlation, and calculates a coefficient from the average value, that is, the degree of influence on the power supply station usage status statistical data of each regional status. Calculated and stored in the correlation coefficient table 53.

  The influence elimination unit 54 refers to the correlation coefficient table 53, and uses the average value or the like that records the time change of each season or every month when there is no local event from each power supply station usage statistical data. Extraction is performed as a value from which the influence is removed. Then, the degree of influence of each local situation statistical data on the usage status statistical data of each power supply station is stored in the usage degree statistical data influence degree DB 7, and the usage status statistical data of each power supply station that has been removed from the influence of the local situation is removed. Stored in the used usage statistics DB 6.

  Returning to FIG. 1, the search condition designating unit 8 sets information such as a region and date / time to be used to predict the usage status of the power supply station, and a predicted value calculation condition based on the power supply station search request data input from an external terminal (not shown). , The usage-removed usage status data estimation unit 9, the usage status data influence level estimation unit 10, and the specified usage condition usage status data estimation unit 11. The external terminal that makes a search request for the power supply station to the power supply station usage status providing system according to the embodiment is installed in a home or office in addition to an in-vehicle navigation system, an in-vehicle telephone, a mobile phone, and the like. There is a personal computer. The former device accesses the power supply station utilization status providing system by wireless communication, while the latter personal computer can access the power supply station utilization status provision system via the Internet. In addition to performing a search in response to a power supply station search request from an external terminal, the power supply station usage status providing system of one embodiment searches for a power supply station usage status in a preset area at a predetermined time every day, It is also possible to distribute the power supply station usage status as a search result to unspecified users in the area. In this case, the search condition designating unit 8 sets information such as a preset region, a date and time to be predicted, and a predicted value calculation condition. There may be a plurality of regions to be predicted, dates and times to be predicted, and prediction value calculation conditions.

  FIG. 3 shows a detailed configuration of the usage-removed usage status data estimation unit 9 that estimates the usage status data of the power supply station from which the influence of the local status has been removed. The search condition specifying unit 91 acquires information such as the region and date / time for which the power supply station usage status is to be predicted from the search condition specifying unit 8, specifies the season, month, and time, and stores them in the search condition table 92. The predicted value calculation unit 93 uses the search condition table 92 based on the values recorded for the seasonal and monthly changes in the usage status statistical data of the power supply stations that have been subjected to the removal of the regional status effect and that have been input from the usage status statistics DB 6 with the impact removed. Based on the information on the region and the date and time that coincide with each other under the condition referred to above, the predicted value of the power supply station usage status data from which the influence of the region to be predicted and the regional status on the date and time is removed is calculated. Note that current power supply station utilization status data may be acquired as necessary, and a difference at the current time may be extracted and added to the predicted value. Then, the predicted data is sent to the utilization state data estimation unit 11 under the designated conditions.

  FIG. 4 shows a detailed configuration of the degree-of-influence estimation unit 10 that estimates the degree of influence of the local situation on the usage status data of the power supply station. The search condition specifying unit 101 acquires information such as the region and date / time for which the power supply station usage status is to be predicted from the search condition specifying unit 8, specifies the season, month, and time, and stores them in the search condition table 102. The current area situation extraction unit 103 refers to the search condition table 102 to obtain an area to be predicted, obtains each area situation data in the current area and stores it in the search condition table 102. Alternatively, if the regional situation data at the time to be predicted can be predicted, the predicted regional situation data at the local time to be predicted is calculated and stored in the search condition table 102. The predicted value calculation unit 104 refers to the search condition table 102 to acquire each regional situation and time changes such as each season and every month, and extracts each regional situation extracted from the degree of influence DB 7 on the usage statistics data. A predicted value of the influence degree (correlation coefficient) of the statistical data on each power supply station usage status statistical data is calculated. Then, the prediction data is sent to the utilization state data estimation unit 11 under the designated conditions.

  Power supply under specified conditions for estimating the power usage data of the power supply station based on the estimated value of the power supply station usage data at the specified predicted area and predicted time and the estimated influence value of the local situation at the predicted area and predicted time A detailed configuration of the stand usage status data estimation unit 11 is shown in FIG. The condition specifying unit 111 stores, in the correlation coefficient (influence degree) table 112 for each regional situation, the prediction data of the degree of influence on the power supply station usage situation data of each regional situation received from the influence degree estimating unit 10 on the utilization situation data. Store. Further, the predicted value calculation condition received from the search condition specifying unit 8 is stored in the search condition table 113. The predicted value calculation unit 114 refers to the search condition table 113 to acquire a predicted value calculation condition (average value of the influence degree of each local situation), and the correlation coefficient table for each regional situation using the calculation method in that condition. The correlation coefficient, that is, the influence degree is acquired with reference to 112. By multiplying the degree of influence and the prediction data of the power supply station usage data from which the influence of the local situation received from the usage data estimation unit 9 after removal of the influence has been removed, the predicted value of the power supply station usage data in each local situation is calculated. To do.

  In the predicted value calculation conditions, when calculating the average value of the impact data of each regional situation, the predicted impact degree when the number of empty power feeders in the regional situation is large (the number of available power feeders is large) is used. In this case, data and a case where the predicted influence degree when there are few empty power feeders (there are few power feeders available) in the local situation are set. The calculated power supply station predicted usage status data, that is, the predicted value of the power supply station usage status data in each regional status is sent to the usage status data distribution unit 12.

  FIG. 6 is a flowchart illustrating an operation of searching for a power supply station by the power supply station usage status providing system according to the embodiment. In step 1, the region and time for which the power supply station usage status is to be predicted are input from an external terminal or the like, and other search conditions as required. In the subsequent step 2, a predicted value of the power supply station usage status data in each local status is calculated according to the input search condition. Note that a tendency (congested, starting to be empty, the same situation for a while) or the like near a designated time (for example, early time zone, late time zone, designated time zone) may be predicted together as necessary.

  In step 3, a list of power supply station candidates is created based on the usage status of the power supply station as a prediction result. At this time, a list is created according to a preset priority order, such as a power supply station with a low utilization rate, a power supply station with a large number of empty power supply units, or a power supply station with a short usage time. In addition, it is possible to limit the power supply type of the vehicle being used from the use status of the power supply station as a search result, and extract a power supply station that can be used in the time zone to be predicted. In addition, the total number of empty power supply units in an adjacent power supply station, an average utilization rate, an average waiting time, and the like may be calculated, and the list may be created in order of priority as a region. Furthermore, the total of the number of empty power supply units in the power supply station, the average utilization rate, the average waiting time, and the like may be calculated, and the list may be created in order of priority of the power supply station alone or the time zone as a region.

  In step 4, a power supply station or a power supply station candidate in the power supply area is displayed based on the created list. At this time, you may display the total time until the completion of the average electric power feeding for every electric power supply stand in consideration of the surrounding traffic congestion situation or electric power feeding area. In addition, in cooperation with an external TSP (telematics service provider) or the like, the local average electricity charge may be displayed together.

  FIG. 7 is a flowchart illustrating an operation in the case of providing the usage status of the power supply station near the guidance route to the destination by the power supply station usage status providing system according to the embodiment. In step 11, an optimum route from the current location to the destination is searched. This route search may be performed by a navigation device or a personal computer used as an in-vehicle terminal, or a route search function is added to the power supply station usage status providing system of the embodiment shown in FIG. You may enter the destination information. When a route search is performed using an external terminal such as a navigation device, information on the guided route as a search result is input from the external terminal.

  In step 12, a power supply station in the vicinity of the search result guide route is searched, and in step 13 the arrival time to each power supply station in the search result is predicted. In step 14, a predicted value of each power supply station usage status data in the region and predicted arrival time of each power supply station in the search result is calculated. In step 15, the searched guidance route and the predicted usage status for each power supply station in the vicinity of the guidance route or for each power supply area are displayed. At this time, the arrival time and the surrounding traffic congestion state may be displayed for each power supply station, or the total time until the completion of the average charging in the power supply area may be displayed. In addition, the status near the specified time is calculated by calculating the total number of empty power supplies in the power station, the average usage rate, average waiting time, etc., and displaying the predicted usage status of the power station alone or in the time zone as a region. May be.

  In the above-described embodiments and their modifications, all combinations of the embodiments and the modifications are possible.

  According to the above-described embodiment and its modifications, the following operational effects can be achieved. Collect and analyze the usage status of power supply stations in multiple regions, record changes in the usage status of the power supply stations, and collect and analyze the status of each region that affects the usage status of the power supply stations. Process and record changes in local conditions. Then, based on the recorded usage status change and the local status change, the usage status change of the power supply station that is not affected by the local status change and the influence level change of the local status change with respect to the usage status change are calculated. Based on the change in usage status and change in influence level, the usage status of the power supply station corresponding to the specified search condition is estimated, so it is possible to accurately consider the local situation that affects the usage status of the power supply station. It is possible to estimate the usage status of a power supply station and to enable power supply with a low waiting time.

1; usage status DB, 2; regional status DB, 3; usage status data statistical processing unit, 4; regional status data statistical processing unit, 5; regional status influence separation unit, 6; ; DB of influence on usage statistics data, 8; Search condition designation unit, 9; Usage status data estimation unit after removal of influence, 10; Impact estimation unit on usage status data, 11; Usage status data under specified condition Estimator

Claims (4)

Usage status recording means for collecting and statistically processing the usage status of power supply stations existing in a plurality of areas, and recording changes in the usage status of the power supply stations;
Regional situation recording means for collecting and statistically processing the situation of each area that affects the usage status of the power supply station, and recording changes in the regional situation;
Based on the usage status change recorded in the usage status recording means and the regional status change recorded in the regional status recording means, the usage status change of the power supply station without the influence of the regional status change; Calculating means for calculating an influence change of the local situation change with respect to the use situation change;
An estimation unit that estimates a usage status of a power supply station corresponding to a specified search condition based on the usage status change and the influence change calculated by the calculation means;
A power supply station utilization status providing system that provides a power supply station utilization status as an estimation result. In the feeding stand utilization status providing system according to claim 1,
The power supply station utilization status providing system, wherein the power supply station utilization status includes idle time information of a power feeder of each power supply station. In the feeding stand utilization status providing system according to claim 1 or 2,
The power supply stand usage status providing system, wherein the status of each region includes event information for each region. In the feeding stand utilization status providing system according to any one of claims 1 to 3,
The specified search condition includes a guide route to the destination,
The power supply station utilization status providing system, wherein the estimation means estimates a utilization status of a power supply station existing in the vicinity of the guide route.

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