WO2017022273A1 - 混雑監視装置、混雑監視方法、および混雑監視プログラム - Google Patents
混雑監視装置、混雑監視方法、および混雑監視プログラム Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000012806 monitoring device Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 17
- 230000002159 abnormal effect Effects 0.000 claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 9
- 230000005856 abnormality Effects 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 6
- 230000000116 mitigating effect Effects 0.000 description 5
- 238000004422 calculation algorithm Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/10—Operations, e.g. scheduling or time tables
- B61L27/18—Crew rosters; Itineraries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/40—Handling position reports or trackside vehicle data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
- G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M7/00—Counting of objects carried by a conveyor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/40—Business processes related to the transportation industry
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q90/00—Systems or methods specially adapted for administrative, commercial, financial, managerial or supervisory purposes, not involving significant data processing
- G06Q90/20—Destination assistance within a business structure or complex
Definitions
- the present invention relates to a technique for providing information related to a congestion state in a predetermined monitoring target range such as a railway station.
- Patent Document 1 discloses a technique for measuring passenger movement with a monitoring camera or an automatic ticket gate and calculating the degree of congestion for each area in a railway station in real time using the obtained passenger movement data and pedestrian simulation. Is disclosed.
- the reason for notifying passengers and operators of the congestion situation is to determine the necessity of countermeasures for congestion such as entrance restrictions to the station premises or guidance of detour walking, and to determine appropriate countermeasures for congestion.
- the degree of congestion is high, it does not necessarily mean that the situation should be notified to passengers or operators.
- the degree of congestion at the railway station varies greatly depending on the time zone and area even in a normal state without any abnormality. For example, if it is an area where daily congestion occurs in the morning and evening commuting hours, the significance of notifying passengers and operators of the morning and evening congestion in that area is not high. For this reason, it may not always be appropriate to determine the necessity of notification by determining the threshold of congestion.
- An object of the present invention is to provide a technique for appropriately determining whether the congestion state in the monitoring target range is normal or abnormal.
- a congestion monitoring device is a congestion monitoring device that monitors passenger congestion in a monitoring target range, and indicates the degree of congestion for each time zone for each area obtained by dividing the monitoring target range.
- a congestion estimation unit that estimates an index
- a congestion index management unit that holds a standard value of the congestion index for each time zone for each area
- a congestion index comparison unit that generates increase / decrease information indicating increase / decrease of the congestion index with respect to the standard value
- an output unit that outputs notification information corresponding to the increase / decrease information.
- the congestion index for each area and each time zone is compared with the standard value for each area and each time zone, and the notification information corresponding to the increase / decrease with respect to the standard value of the congestion index is output. It is possible to appropriately determine whether the congestion situation is normal or abnormal.
- surface which shows an example of the information which shows the connection and movement time between the areas of the monitoring object range contained in spatial information. It is the figure which showed an example of the connection information between the areas of the monitoring object range contained in spatial information with the network on a map.
- It is a flowchart which shows the process of a congestion parameter
- FIG. 1 is a block diagram of the congestion monitoring apparatus according to the present embodiment.
- the congestion monitoring device 100 divides the monitoring target range into a plurality of areas and monitors passenger congestion in each area.
- the congestion monitoring apparatus 100 includes a congestion estimation unit 101, a congestion index management unit 102, a spatial information management unit 105, a congestion index comparison unit 103, a guidance route calculation unit 104, and an output unit 106.
- the congestion estimation unit 101 estimates a congestion index representing the degree of congestion for each area in real time, and outputs it as congestion index information.
- the congestion index management unit 102 accumulates the congestion index information in the database and calculates and records the statistical information of the congestion index. For example, statistical information such as an average value or a median value in a predetermined period in the past is used as a standard value (standard value) of a congestion index particularly in a normal state in which no abnormality related to the area has occurred.
- the spatial information management unit 105 holds, for each area, spatial information representing the position, the connection relationship in which passengers can move between the areas, and the time required to pass through the area.
- the congestion index comparison unit 103 notifies the passenger or the station staff of the congestion index based on the congestion index statistical information recorded in the congestion index management unit 102 and the congestion index for each area output from the congestion estimation unit 101. To decide.
- the guidance route calculation unit 104 calculates a guidance route for guiding the passenger so as not to pass through an area where the degree of congestion is higher than the standard state based on the comparison result in the congestion index comparison unit 103.
- the guidance route calculation unit 104 refers to the spatial information recorded in the spatial information management unit 105, and the time required to pass through the area and the connection relationship between the mutually movable areas. To figure out.
- the output unit 106 outputs the notification information from the congestion index comparison unit 103 and the guidance route information of the guidance route calculation unit 104.
- the information output from the output unit 106 is sent to the information terminal 107 for use by the passenger or station staff, and the information is notified to the passenger or station staff by screen display or voice output.
- the congestion estimation unit 101 estimates a congestion index indicating the degree of congestion for each time zone for each area obtained by dividing the monitoring target range.
- the congestion index management unit 102 holds a standard value of the congestion index for each time zone for each area.
- the congestion index comparison unit 103 generates increase / decrease information indicating an increase / decrease with respect to the standard value of the congestion index.
- the output unit 106 outputs notification information corresponding to the increase / decrease information. According to this, the congestion index for each area and each time zone is compared with the standard value for each area and each time zone, and the notification information corresponding to the increase / decrease with respect to the standard value of the congestion index is output. It is possible to appropriately determine whether the congestion state is normal or abnormal.
- the congestion index management unit 102 accumulates the congestion index for each area and each time zone calculated by the congestion estimation unit 101, and performs statistical processing on the accumulated congestion index, so that each area and each time zone The standard value of is calculated. Since the standard value is calculated by statistical processing on the congestion index actually measured in the past and the current congestion index is compared with the standard value, how much the current congestion index has increased or decreased compared to the past standard state It can be used for notification of the status.
- the congestion index management unit 102 further holds an increase / decrease threshold that is a predetermined threshold for the increase / decrease information. Then, the congestion index comparison unit 103 compares the increase / decrease information and the increase / decrease threshold for each area for each time period.
- the guide route calculation unit 104 calculates a guide route that is a travel route that does not pass through an area where the increase / decrease information exceeds the increase / decrease threshold.
- the output unit 106 outputs the guidance route.
- the output unit 106 displays the monitoring target range and each area inside it in a map format, and displays each area differently according to the increase / decrease information on the map.
- the comparison result between the congestion index and the congestion index standard value can be visually represented on the map, so that it is possible to visually grasp the area where the degree of congestion is higher than usual.
- the output unit 106 displays each area in a different color according to the increase / decrease information.
- the comparison result between the congestion index and the standard value is displayed in a color-coded manner on the map, so that the area where the degree of congestion is higher than normal can be easily grasped by distinguishing the colors.
- the congestion index management unit 102 may hold a plurality of increase / decrease threshold values for each time zone for each area.
- the congestion index comparison unit 103 compares the increase / decrease information for each area and each time zone with a plurality of increase / decrease thresholds. Based on the comparison result between the increase / decrease information for each area and each time zone and a plurality of increase / decrease thresholds, the output unit 106 assigns a plurality of levels of congestion increase / decrease to each area, and displays the congestion increase / decrease of each area. According to this, since the degree of increase / decrease with respect to the standard value of the congestion index for each area is output in a plurality of stages, it is possible to grasp how much the degree of congestion is higher than usual for each area.
- the output unit 106 sorts each area according to increase / decrease of the congestion index with respect to the standard value, and outputs the sorting result.
- the areas are displayed in the descending order of the degree of increase in the degree of congestion from the normal level, so that it is possible to grasp where the area with high priority for implementing the congestion improvement measure is.
- time zone referred to here may not only distinguish the time zone within a day, but may further distinguish the day type such as a difference in day of the week or a weekday holiday. Since the state of congestion at normal times differs depending on the day of the week and the type of day, by distinguishing those days, areas in a different congestion state from normal times can be detected with higher accuracy.
- the congestion index comparison unit 103 further compares the congestion index for each area and each time zone with a common congestion threshold that is a common threshold for the area and the time zone for the congestion index,
- the output unit 106 may output predetermined notification information for an area where the increase / decrease information exceeds the increase / decrease threshold and the congestion index exceeds both the common congestion threshold. According to this, it is possible to grasp the area where both the congestion index itself and the degree of increase are high.
- the guidance route calculation unit 104 includes a normal time required for passing through each area during normal times and an abnormal time required for passing when the increase / decrease information exceeds the increase / decrease threshold. Is set as a guide route when there is a route that requires less time to travel than a normal route that is assumed during normal operation as a travel route between two areas. May be. According to this, it is possible to guide the passenger to a guide route that can pass through an area where the increase in the congestion index is large and that can pass in a shorter time than the normal route.
- FIG. 2 is a table showing an example of the congestion index accumulated in the congestion index management unit.
- the area column 201a indicates each area
- the time zone column 202a indicates a time representative of the target time zone.
- “20%” of the congestion index 203a indicates that the congestion index at position A401 at time 9:00 is 20%.
- the congestion index is expressed as a ratio of the congestion degree expressed by the number of passengers per area to a predetermined congestion degree corresponding to 100%.
- time zone column 202a may be represented not by time but by a period so that the congestion index for a certain period is a predetermined value.
- the congestion estimation unit 101 outputs a congestion index at the calculated target time, and the congestion index management unit 102 sequentially adds the congestion index to the database in the format shown in FIG. Also good.
- the congestion estimation unit 101 may output the congestion index information in the format shown in FIG. 2, and the congestion index management unit 102 may record the received congestion index information in a database.
- FIG. 3 is a table showing an example of standard values of the congestion index calculated by the congestion index management unit.
- the standard value in FIG. 3 may be in the same format as the congestion index in FIG.
- an average value in a past predetermined period may be registered in the table of FIG. 3 as a standard value used by the congestion index comparison unit 103.
- the area column 201b indicates each area
- the time zone column 202b indicates a time representative of the target time zone.
- “15%” of the standard value 203b of the congestion index indicates that the standard value of the congestion index at the position A401 at time 9:00 is 15%.
- FIG. 4 is a table showing an example of increase / decrease information indicating increase / decrease with respect to the standard value of the congestion index.
- an area column 301 indicates each area
- a time zone column 302 indicates a time representative of the target time zone.
- “+ 5%” in the increase / decrease information 303 indicates that the increase / decrease with respect to the standard value 203b of the congestion index 203a detected in real time at the position 401 at time 9:00 is an increase of + 5%.
- the increase / decrease information is a congestion index of the statistical information and an increase / decrease ratio with respect to the statistical information of the congestion index detected in real time. Or it is good also as a difference for every area.
- FIG. 5 is a table showing an example of a result of determining whether or not the congestion state of each area is within the normal range based on the increase / decrease information of the congestion index shown in FIG.
- the congestion index is within a range of ⁇ 20% of the standard value, it is determined as normal. That is, it is normal if the increase / decrease information is within a range of ⁇ 20%.
- “normal” in the determination result 503 indicates that the area at the position A401 (501) at time 9:00 (502) is determined to be in a normal congestion situation.
- “Abnormal” in the determination result 504 indicates that it is determined that the area at the position A404 (505) at time 9:00 (502) is in an abnormal congestion state.
- FIG. 6 is a diagram showing an example of position information of each area of the monitoring target range included in the spatial information as a map.
- Position A404 is the area around the ticket gate
- positions A405 and A413 are the concourse area after entering the ticket gate
- positions A406 and A410 are the stairs area
- positions A407, A408, A409, A411, and A412 are the platform area
- position A401, A402, A403, and A414 indicate areas outside the ticket gates of the station, respectively.
- FIG. 7 is a table showing an example of information indicating connection and movement time between areas in the monitoring target range included in the spatial information.
- “5 seconds” in 603 indicates that the area A401 shown in 602 is connected to the area A402 shown in 601 and the moving time between them is 5 seconds.
- “-” In 605 indicates that it is not possible to move directly from the area A 401 indicated by 602 to the area A 403 indicated by 604 without passing through another area.
- FIG. 8 is a diagram showing an example of connection information between areas in the monitoring target range included in the spatial information on a map network.
- Vertex nodes N401 to N414 respectively corresponding to the areas from the position A401 to the position A414 are set.
- the connection between the vertex nodes is set to match the information 600 between the areas. This means that a passenger can move between two nodes connected by the side.
- the congestion estimation unit 101 will be described.
- the congestion estimation unit 101 sets each area as an observation target, and measures the number of inflows and outflows observed by a sensor at the entrance and exit of the area to be observed.
- the congestion estimation unit 101 holds area area information indicating the area of each area in advance, and passengers in each area based on the information on the number of inflows and / or outflows at the entrance / exit of the area and the area area information. The density of is calculated. The density of passengers in each area is used as a congestion index.
- the congestion estimation unit 101 obtains the density of passengers in each area included in the observable space where people can be observed.
- the estimated value may be used as a congestion index for each area.
- the congestion estimation unit 101 measures the number of inflows and outflows at the entrance / exit which is the boundary of the observable space.
- the congestion estimation unit 101 holds branch information indicating a branching rate indicating a ratio of the destination outlet and outlet for each doorway in the observable space, and based on the number of inflows and the branch information, the observable space
- the flow of people in each area is estimated, and the density of passengers in each area is calculated.
- the congestion estimation unit 101 estimates the number of outflows at each doorway based on the number of inflows in the observable space and the branch information. Then, the congestion estimation unit 101 compares the estimated number of outflows with the measured number of outflows, evaluates the estimation accuracy based on the comparison result, and updates the branch information.
- FIG. 9 is a block diagram illustrating a configuration example of the congestion estimation unit according to the other example.
- the congestion estimation unit 101 includes a person counting unit 1011, a recording unit 1012, a movement estimation unit 1013, an evaluation unit 1014, and a congestion index calculation unit 1015.
- the number-of-people measuring unit 1101 uses the observable space as a target space, and uses the boundary connecting the target space outside the target space as an entrance / exit, and measures the number of people flowing into and out of the target space at the entrance / exit.
- the recording unit 1102 includes inflow information indicating the number of people passing in the direction of flowing into the target space from the entrance, outflow information indicating the number of people passing in the direction of flowing out of the target space from the entrance, the target space, its entrance and exit, and the entrance Corresponding to the estimation result, target space information including travel time information indicating the time required for travel between, branch information indicating the branch rate indicating the ratio of the destination outlet for each entrance in the target space, and Record the evaluation result information indicating the result of the validity evaluation of the estimation.
- the movement estimation unit 1013 receives the measured inflow information, space information, and branch information as input, estimates OD information representing movement between the entrances and exits, and estimates the movement of people between the entrances and exits.
- the evaluation unit 1014 compares the outflow number information estimated by the movement estimation unit 1103 with the outflow number information acquired from the recording unit 1012, evaluates the validity of the estimation processing by the movement estimation unit 1013 based on the comparison result, The sex evaluation result and the estimation result are output to the recording unit 1012 and the branch information is updated.
- the congestion index calculation unit 1015 calculates a congestion index of each area designated in advance in the target space based on the estimation result of the movement of the person between the entrance and exit of the movement estimation unit 1013. For example, the congestion index calculation unit 1015 calculates, for each area, the average number of visitors per area and the number of people passing by per unit time, and outputs these as the area congestion index.
- the position information of the pedestrian agent is sequentially updated based on the OD information.
- the congestion index calculation unit 1015 calculates the average number of staying people per area and the number of passing people per unit time for each area specified in advance based on the position information of the pedestrian agent.
- FIG. 10 is a flowchart showing the processing of the congestion index comparison unit.
- the congestion index comparison unit 103 acquires the congestion index of each area at time t output from the congestion estimation unit 101.
- the congestion index comparison unit 103 acquires a standard value corresponding to the congestion index acquired in step S1001 from the congestion index management unit 102 in step S1002.
- the congestion index comparison unit 103 may acquire the standard value of the congestion index in each area in the time zone including the time t or the time t.
- the congestion index comparison unit 103 compares the congestion index acquired in step S1001 with the standard value of the congestion index acquired in step S1002, and generates increase / decrease information indicating increase / decrease of the congestion index with respect to the standard value.
- the increase / decrease information represents the difference between the congestion index and the standard value, but is not limited to this.
- the increase rate of the congestion index based on the statistical information may be used as the increase / decrease information.
- the congestion index comparison unit 103 outputs the congestion information generated in step S1003.
- FIG. 11 is a flowchart illustrating processing of the guidance route calculation unit.
- the guidance route calculation unit 104 acquires information indicating the position of each area and the connection between the areas from the database of the spatial information management unit 105.
- the guidance route calculation unit 104 acquires the increase / decrease information at the time t output from the congestion index comparison unit 103 in step S2002, and the acquired increase / decrease information in the spatial information management unit 105 in step S2003. Assign to each area in the information obtained from the database.
- the guidance route calculation unit 104 searches for a route between any two areas (nodes) in the network having each area as a node, which is constructed from the location and connection information of each area. Then, a guidance route that avoids an area indicating an abnormal congestion situation is calculated. At that time, the guidance route calculation unit 104 weights the movement time between the nodes with the increase / decrease information of the congestion index assigned to each area in the network, and performs a route search between any two areas (nodes). For the route search, for example, a Dijkstra algorithm or an A * algorithm known as a known route search method is used.
- step S2005 the guidance route calculation unit 104 outputs the route calculated in step S2004 and causes the information terminal 107 to display the route.
- FIG. 12 is a diagram showing an example of route information when there is no increase exceeding the threshold in the congestion index of each area.
- the route information output from the guidance route calculation unit 104 is indicated by a thick arrow in the drawing.
- the shortest route usually takes the shortest time to pass.
- the route with the lowest cost when traveling from the node N407 (corresponding area A407) at the end of the platform to the node N414 (corresponding area A414) at the exit of the station outside the ticket gate is shown. .
- the cost of movement between nodes is, for example, the time required to move between the nodes.
- the route with the shortest distance is the route with the minimum cost (the shortest required time).
- FIG. 13 is a map display showing the position of each area in the monitoring target range and the state of congestion.
- a thin hatched area is a normal congestion situation area in which the increase / decrease information of the congestion index is equal to or less than the increase / decrease threshold.
- the dark hatched area is an area of an abnormal congestion situation in which the increase / decrease information of the congestion index exceeds the increase / decrease threshold.
- the increase in the congestion index exceeds the increase / decrease threshold in some areas A404, A405, A406, A408, and A413.
- FIG. 14 is a diagram illustrating an example of route information in a case where an increase in the congestion index in a partial area exceeds the increase / decrease threshold.
- the route information output from the guidance route calculation unit 104 is the route with the lowest cost in the situation.
- the route with the lowest cost is, for example, a route whose estimated time is estimated to be the shortest.
- the route indicated by the thick arrow is a route whose start point and end point move from the node N407 at the end of the platform to the exit N414 of the station outside the ticket gate as in the route of FIG.
- the increase in the congestion index of the node N406 on the stairway on the route in FIG. 12, the node N405 on the floor above the staircase, and the node N404 on the ticket gate exceeds the increase / decrease threshold.
- the congestion index increases by more than a predetermined value from the standard value, the cost of movement between nodes increases accordingly.
- the cost required for movement between nodes in a normal congestion situation is constant.
- the normal movement cost of a route is expressed by the number of nodes on the route. Further, here, the cost for a node in which the increase in the congestion index exceeds the increase / decrease threshold at the time of abnormality is set to 5 times that in the normal state.
- N407, N408, N406, N405, N404, N402, N401, and N414 are included on the path from the node N407 to the node N414 indicated by the bold arrow. If the increase in the congestion index of all nodes on the route is equal to or less than the increase / decrease threshold, the cost of moving the route is 8. However, as shown in FIG. 13, the increase in the congestion index exceeds the increase / decrease threshold at the nodes of the four vertices among the eight vertices. Therefore, the cost of moving the route from the node N407 to the node N414 is 24.
- N407, N408, N409, N411, N412, N415, N416, N417, N418, N419, N403, N402, N401, N414 are on the path from the node N407 to N414 indicated by the thick arrow. 14 vertices are included. The increase in the congestion index exceeds the increase / decrease threshold at the node of one of the 14 vertices. Therefore, the cost of moving the route from the node N407 to the node N414 is 18.
- the guidance route calculation unit 104 searches for a route with the lowest cost according to the state of each area, and outputs information about the obtained route.
- a known Dijkstra algorithm can be used as a route search method.
- FIG. 15 is a flowchart showing processing of the output unit.
- the output unit 106 acquires the position and connection information of each area from the database of the spatial information management unit 105.
- the output unit 106 acquires increase / decrease information indicating increase / decrease of the congestion index of each area at time t output from the congestion index comparison unit 103.
- the output unit 106 allocates the increase / decrease information of the congestion index of each area at the acquired time t to each area in the information acquired from the spatial information management unit 105.
- step S3004 the output unit 106 uses the increase / decrease information of the congestion index assigned to each area in step S3003 as an increase / decrease threshold value for determining whether the predetermined increase / decrease in the congestion index is normal or abnormal. By comparing, it is determined whether the congestion status of each area is normal or abnormal.
- step S3005 the output unit 106 updates the display content information so that the display content of each area matches the normality / abnormality of the congestion status determined in step S3004, and outputs the updated information to the information terminal 107. Further, when the output unit 106 acquires the route information from the guidance route calculation unit 104, the output unit 106 also outputs the route information to the information terminal 107.
- the display contents of each area include displaying the congestion status with the display color of each area, or displaying an icon indicating the congestion status on or near the area display.
- the increase / decrease information of the congestion index is compared with one increase / decrease threshold here, the present invention is not limited to this. Compare the increase / decrease information of the congestion index assigned to each area with multiple increase / decrease thresholds set for each area, determine the degree of congestion abnormality, and indicate the degree of congestion condition abnormality or congestion state abnormality Information indicating the display content indicating the degree of the above may be output. Thereby, on the screen of the information terminal 107, for example, a map in which each area is color-coded according to the congestion status is displayed.
- the output unit 106 may output to the information terminal 107 information indicating that a congestion mitigation measure should be implemented for an area where the increase in the congestion index assigned for each area is large.
- the area where the congestion alleviation measure should be implemented is displayed on the screen.
- the output unit 106 may give priority to the implementation of the congestion mitigation measures to the plurality of areas. The priority order may be determined according to the increase / decrease information of the congestion index assigned to each area.
- FIG. 16 is a diagram illustrating a display example of an area where the congestion mitigation measure in the information terminal is to be implemented.
- the increase / decrease information of the congestion index is high in the order of area A404, area A408, and area A420, it is assumed that priorities 1, 2, and 3 are given to area A404, area A408, and area A420, respectively.
- the priority the first priority is given to the area A404, and the “first priority” icon 701 is displayed.
- Area A 408 is given the second highest priority, and a “second priority” icon 702 is displayed.
- the area A420 is given the third highest priority, and the “third priority” icon 703 is displayed.
- information notified to passengers or station staff is visually displayed on the screen of the information terminal 107, but the present invention is not limited to this.
- information such as whether the congestion status of each area is normal or abnormal may be notified to passengers and station staff by voice.
- the standard value of the congestion index for each time zone is provided for each area obtained by dividing the monitoring target range into a plurality of areas, and the congestion index and the standard value are compared for each area. Instead, it can be determined whether the congestion state is in a normal range. By using it, for example, you can notify areas where abnormal congestion occurs, and immediately identify areas that need to be dealt with preferentially, such as congestion reduction measures even at stations that are regularly congested Can do.
- DESCRIPTION OF SYMBOLS 100 ... Congestion monitoring apparatus, 101 ... Congestion estimation part, 1011 ... Number-of-people measurement part, 1012 ... Recording part, 1013 ... Movement estimation part, 1014 ... Evaluation part, 1015 ... Congestion index calculation part, 102 ... Congestion index management part, 103 ... Congestion index comparison unit 104 ... guide route calculation unit 105 ... spatial information management unit 106 ... output unit 107 ... information terminal 1101 ... number of people measurement unit 1102 ... recording unit 1103 ... movement estimation unit 200a ... congestion index Information, 200b ... Congestion index information, 201a ... Area column, 201b ... Area column, 202a ... Time zone column, 202b ...
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Abstract
Description
図1は、本実施形態による混雑監視装置のブロック図である。混雑監視装置100は、監視対象範囲を複数のエリアに分割して各エリアにおける旅客の混雑を監視する。混雑監視装置100は、混雑推定部101と、混雑指標管理部102と、空間情報管理部105と、混雑指標比較部103と、誘導経路算出部104と、出力部106とを有している。
図2は、混雑指標管理部に蓄積される混雑指標の一例を示す表である。図2に示された混雑指標情報200aにおいてエリア欄201aは各エリアを示しており、時間帯欄202aは対象時間帯を代表する時刻を示している。例えば、混雑指標203aの「20%」は、時刻9:00の位置A401の混雑指標が20%であることを示している。ここでは、混雑指標は、面積当たりの旅客の人数で表わされる混雑度の、100%に相当する所定の混雑度に対する割合で表わされている。
混雑推定部101について説明する。
本実施形態によれば、監視対象範囲を複数に分割したエリア毎に時間帯毎の混雑指標の標準値を設け、エリア毎に混雑指標と標準値を比較するので、単に混雑しているというのではなく、混雑状況が正常な範囲か否かを判断することができる。それを利用すれば、例えば異常な混雑が生じているエリアを通知することができ、日常的に混雑する駅においても特に優先的に混雑軽減策などの対応が必要なエリアを即座に把握することができる。
Claims (12)
- 監視対象範囲における旅客の混雑を監視する混雑監視装置であって、
前記監視対象範囲を分割した各エリアについて時間帯毎に混雑の度合いを示す混雑指標を推定する混雑推定部と、
各エリアについて時間帯毎の混雑指標の標準値を保持する混雑指標管理部と、
前記混雑指標の前記標準値に対する増減を示す増減情報を生成する混雑指標比較部と、
前記増減情報に応じた通知情報を出力する出力部と、を有する混雑監視装置。 - 前記混雑指標管理部は、前記混雑推定部で算出されたエリア毎および時間帯毎の混雑指標を蓄積し、前記蓄積した混雑指標に対して統計処理を行うことにより、エリア毎および時間帯毎の前記標準値を算出する、請求項1に記載の混雑監視装置。
- 誘導経路算出部を更に有し、
前記混雑指標管理部は、前記増減情報について所定の閾値である増減閾値を保持し、
前記混雑指標比較部は、各エリアについて時間帯毎に前記増減情報と前記増減閾値を比較し、
前記誘導経路算出部は、前記増減情報が前記増減閾値を超えているエリアを通らない移動経路である誘導経路を算出し、
前記出力部は、前記誘導経路を出力する、
請求項1に記載の混雑監視装置。 - 前記出力部は、前記監視対象範囲およびその内部の前記各エリアを地図で表示し、前記各エリアを前記増減情報に応じて異なる表示とする、
請求項1に記載の混雑監視装置。 - 前記出力部は、前記各エリアを前記増減情報に応じて異なる色で表示する、請求項4に記載の混雑監視装置。
- 前記混雑指標管理部は、各エリアについて時間帯毎の増減閾値を複数個保持し、
前記混雑指標比較部は、エリア毎および時間帯毎の前記増減情報と前記複数の増減閾値とを比較し、
前記出力部は、前記エリア毎および前記時間帯毎の前記増減情報と前記複数の増減閾値との比較結果に基づき、前記各エリアに複数段階の混雑増減度を付与し、前記各エリアの前記混雑増減度を表示する、
請求項1に記載の混雑監視装置。 - 前記出力部は、前記混雑指標の前記標準値に対する増減により前記各エリアをソートしてソート結果を出力する、請求項6に記載の混雑監視装置。
- 前記時間帯というのは、曜日の違いまたは日の種別を区別した時間帯である、請求項1に記載の混雑監視装置。
- 前記混雑指標管理部は、前記増減情報について所定の閾値である増減閾値を保持し、
前記混雑指標比較部は、更に、エリア毎および時間帯毎の前記混雑指標を、混雑指標に対するエリアおよび時間帯に共通の閾値である共通混雑閾値と比較し、
前記出力部は、前記増減情報が前記増減閾値を超えており、かつ、前記混雑指標が前記共通混雑閾値の両方を超えているエリアについて所定の通知情報を出力する、
請求項1に記載の混雑監視装置。 - 前記誘導経路算出部は、各エリアの正常時の通過に要する時間である正常時通過所要時間と、増減情報が増減閾値を超えているときに通過に要する時間である異常時通過所要時間とを予め設定しておき、2つのエリア間の移動経路として、正常時に想定される経路である正常時経路よりも、移動に要する時間が短い経路を誘導経路とする、
請求項3に記載の混雑監視装置。 - 監視対象範囲における旅客の混雑を監視するための混雑監視方法であって、
混雑推定手段が、前記監視対象範囲を分割した各エリアについて時間帯毎に混雑の度合いを示す混雑指標を推定し、
混雑指標管理手段が各エリアについて時間帯毎の混雑指標の標準値を保持し、
混雑指標比較手段が、前記混雑指標の前記標準値に対する増減を示す増減情報を生成し、
出力手段が、前記増減情報に応じた通知情報を出力する、混雑監視方法。 - コンピュータで実行することにより、監視対象範囲における旅客の混雑を監視する混雑監視プログラムであって、
前記監視対象範囲を分割した各エリアについて時間帯毎に混雑の度合いを示す混雑指標を推定する手順と、
各エリアについて時間帯毎の混雑指標の標準値を保持する手順と、
前記混雑指標の前記標準値に対する増減を示す増減情報を生成する手順と、
前記増減情報に応じた通知情報を出力する手順とをコンピュータに実行させるための混雑監視プログラム。
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