JP2018173337A - Lifting means specification device, lifting means specification method, computer program, and recording medium in which computer program is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting means specification device, a lifting means specification method, a computer program, and a recording medium in which the computer program is recorded.SOLUTION: The present invention comprises: a map database for storing map data that includes position information pertaining to an entrance door; a probe information preservation unit for preserving probe information that includes ID information acquired from a mobile terminal device and capable of identifying the user of the mobile terminal device, positioning signal receive information indicating whether or not a position signal was received, position information, atmospheric pressure information and acceleration information; from a series of probe information provided with the same ID information and continuous in time, with a border position located near the entrance door that corresponds to a border between a first portion where the positioning signal receive information indicates having received and a second portion where the positioning signal receive information indicates having not received, probe information that corresponds to the second portion that satisfies a prescribed condition is extracted, and the lifting means located at the entrance door is specified on the basis of the atmospheric pressure information and acceleration information included in the extracted probe information.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a lifting / lowering means specifying device, a lifting / lowering means specifying method, a computer program, and a recording medium recording the computer program.

In recent years, along with the spread of the Internet and mobile terminal devices, development of navigation technology for pedestrians toward mobile terminal devices such as smartphones has been widely performed. In addition to this situation, with the increasing accuracy of sensors such as barometric pressure sensors, there is an increasing demand for maintaining an underground map with more detailed information, especially in the underground and structures such as underground shopping streets. When creating an underground map with more detailed information, the information on whether a lift, such as stairs, slopes, escalators, elevators, etc., is installed as a means of moving from the ground to an underground mall, etc. This is especially important for people who have difficulty or who have heavy loads.
As a technique related to this, Patent Document 1 discloses a technique for recognizing the type of user's action such as stay, walk, stairs, elevator, and the like based on detection values of an atmospheric pressure sensor, an acceleration sensor, and the like.
See also Patent Documents 2 to 4 as related art related to the present disclosure.

Japanese Patent Laid-Open No. 2006-6611 JP 2013-2000156 A JP 2010-38712 A JP 2012-215409 A

  The present inventor, when specifying the lifting means installed at the entrance to the underground shopping area based on the probe information of the user equipped with the mobile terminal device, which includes the atmospheric pressure information and the acceleration information, By automatically extracting probe information suitable for specifying the means, intensive studies have been conducted in order to specify the elevating means for the entrance / exit in a more efficient and practical manner. As a result, as the probe information suitable for specifying the elevating means, a series of probe information having the same ID information and continuous in time, wherein the positioning signal reception information indicates that reception is present, and The position of the boundary point corresponding to the boundary point with the second part indicating that the positioning signal reception information is not received corresponds to the second part satisfying a predetermined condition among the series of probe information located in the vicinity of the entrance / exit. It has been conceived that probe information is extracted and the lifting means provided at the entrance / exit is specified using the extracted probe information.

This indication was made in order to achieve the above-mentioned object, and the raising / lowering means specifying device concerning at least some aspects of this indication is specified as follows.
The lifting / lowering means specifying device defined in the first aspect is:
A map database for storing map data including location information of the doorway;
ID information that can be identified from the mobile terminal device, which can identify the user of the mobile terminal device, positioning signal reception information indicating whether or not a positioning signal is received, position information, atmospheric pressure information, and acceleration information. A probe information storage unit for storing probe information including,
A series of probe information having the same ID information and continuous in time, a first part indicating that the positioning signal reception information is received and a second part indicating that the positioning signal reception information is not received; A first extraction unit that extracts probe information corresponding to the second part satisfying a predetermined condition among a series of probe information in which a boundary point position corresponding to the boundary point is positioned in the vicinity of the entrance;
A first specifying unit that specifies lifting means located at the entrance based on atmospheric pressure information and acceleration information included in the extracted probe information;
Is provided.

According to the lifting / lowering means specifying device of the first aspect defined as described above, a series of probe information having the same ID information as the probe information for specifying the lifting / lowering means located at the entrance and exiting in time. A position of a boundary point corresponding to a boundary point between the first part indicating that the positioning signal reception information is received and the second part indicating that the positioning signal reception information is not received is located in the vicinity of the entrance / exit. Probe information corresponding to the second portion satisfying a predetermined condition is extracted from the series of probe information to be used for specifying the lifting means. Since the probe information is probe information in an area where the positioning signal cannot be received immediately after receiving the positioning signal near the entrance / exit, the probe information is extracted from the enormous probe information stored in the probe information storage unit. By doing so, it is possible to specify the lifting means more efficiently, and the processing load on the CPU is also reduced. It is preferable that the information on the elevating / lowering means specified in this way is particularly incorporated in map data such as an underground map.
The elevating means may be at least one of a staircase, a slope, an escalator, and an elevator (second aspect).

The lifting / lowering means specifying device defined in the third aspect is further defined to specify the lifting / lowering means directly connected to the doorway, and is defined as follows. That is,
In the lifting / lowering means specifying device stipulated in the first or second aspect, the predetermined condition is that the second part includes a changing atmospheric pressure part and a constant atmospheric pressure part in order from the boundary point. is there.
According to the lifting / lowering means specifying device of the third aspect defined in this way, the barometric pressure information of the probe information corresponding to the second portion is changed from the boundary point to the changing atmospheric pressure portion and the constant atmospheric pressure portion. The configured probe information is extracted and used to specify the lifting means. Here, the changed atmospheric pressure portion means a range of probe information in which the atmospheric pressure detected by the atmospheric pressure sensor has changed compared to the atmospheric pressure detected at the time before detection (for example, immediately before detection), for example, 2 corresponds to probe numbers 003 to 018 having atmospheric pressure information “−20” in the probe information shown in FIG. The raising / lowering operation by the raising / lowering means can be determined from the changed atmospheric pressure portion. If the probe information satisfies the above conditions, the lifting / lowering means is lifted / lowered immediately after the mobile terminal device stops receiving the positioning signal, so it is suitable for identifying the lifting / lowering means directly connected to the entrance / exit. Yes.

  The first specifying unit can specify the elevating means based on the probe information corresponding to the changed atmospheric pressure portion in the extracted probe information (fourth aspect). Since the raising / lowering operation by the raising / lowering means is considered to be performed in the changed atmospheric pressure part, the raising / lowering means can be specified by using the probe information corresponding to the part. By limiting the range of probe information used to specify the lifting means, it is possible to reduce the CPU load more efficiently.

The lifting / lowering means specifying device defined in the fifth aspect has the further object of specifying the number of steps in the staircase when the lifting means is specified as a staircase, and is defined as follows. That is,
In the lifting / lowering means specifying device defined in the fourth aspect,
The lifting means is a staircase;
The first specifying unit further specifies the number of steps of the staircase based on probe information corresponding to the changed atmospheric pressure portion.
According to the lifting means specifying device of the fifth aspect defined in this way, the number of steps is further specified based on the probe information corresponding to the changed atmospheric pressure portion. A more detailed underground map can be provided by specifying the number of steps of the stairs and making it an underground map provided with the information.

The lifting / lowering means specifying device defined in the sixth aspect is further defined to specify the depth of the lifting / lowering means and is defined as follows. That is,
In the lifting / lowering means specifying device defined in any one of the third to fifth aspects,
The probe information storage unit further stores the user's stride information,
The feature point on the map data is compared with the probe information group composed of the probe information corresponding to the second constant atmospheric pressure portion, and the probe information that matches the characteristic of the feature point is obtained from the probe information group as the feature probe. A second extraction unit that extracts information;
A first calculation unit for calculating a route distance on the map data from the boundary point position to a first position corresponding to the feature point;
A walking distance from the boundary point position to a second position corresponding to the extracted probe information, wherein a walking distance along the walking route represented by the probe information group is calculated based on the stride information. Two arithmetic units;
A second specifying unit that compares the route distance and the walking distance and specifies the depth of the elevating means;
Is provided.

  According to the lifting / lowering means specifying device of the sixth aspect defined as described above, points on the map data where points may appear in the movement trajectory based on the probe information, for example, points that can turn right and left or points that can move up and down are displayed. Probe information that matches the characteristic of the feature point is extracted as feature probe information, and the path distance from the boundary point position to the first position corresponding to the feature point and the feature point to the feature point are extracted. The walking distance to the second position corresponding to the probe information is compared, and the depth of the lifting means is specified based on the difference. After receiving the positioning signal, the probe information is usually based on the number of steps and the step length of the user who possesses the mobile terminal device with reference to the point where the positioning signal is stopped instead of the position information by the positioning signal. The estimated position information calculated in this way can be specified. However, in general, the stride while moving the elevating means is narrower than the stride when walking on a flat road. Therefore, the depth of the lifting / lowering means can be specified by reflecting the difference in the stride when the lifting / lowering means is moved. A more detailed underground map can be provided by using the underground map including information on the depth of the lifting means specified in this way.

The elevating means specifying method defined in the seventh aspect is:
A storage step of storing map data including position information of the entrance / exit in a map database;
ID information that can be identified from the mobile terminal device, which can identify the user of the mobile terminal device, positioning signal reception information indicating whether or not a positioning signal is received, position information, atmospheric pressure information, and acceleration information. Probe information storage step for storing the probe information including the probe information in the probe information storage unit,
The first extraction unit includes a series of probe information that includes the same ID information and is continuous in time, the first portion indicating that the positioning signal reception information is received and the positioning signal reception information are not received. First of extracting probe information corresponding to the second part satisfying a predetermined condition from a series of probe information in which a boundary point position corresponding to a boundary point with the second part indicating Extraction steps of
A first specifying unit for specifying a lifting means located at the doorway based on atmospheric pressure information and acceleration information included in the extracted probe information;
Is provided.
According to the elevating means specifying method of the seventh aspect defined in this way, the same effect as the first aspect is achieved.

The lifting means specifying method defined in the eighth aspect is:
In the lifting means identifying method defined in the seventh aspect,
The elevating means is at least one of a staircase, a slope, an escalator, and an elevator.
According to the lifting / lowering means specifying method of the eighth aspect defined as described above, the same effects as those of the second aspect are achieved.

The lifting means specifying method defined in the ninth aspect is:
In the lifting means specifying method defined in the seventh or eighth aspect,
The predetermined condition is that the second portion includes a changing atmospheric pressure portion and a constant atmospheric pressure portion in order from the boundary point.
According to the lifting / lowering means specifying method of the ninth aspect defined in this way, the same effects as those of the third aspect are achieved.

The elevating means specifying method defined in the tenth aspect is:
In the lifting means specifying method defined in the ninth aspect,
In the first specifying step, the elevating means is specified based on the probe information corresponding to the changed atmospheric pressure portion in the extracted probe information.
According to the lifting means specifying method of the tenth aspect defined in this way, the same effects as in the fourth aspect are achieved.

The lifting means specifying method defined in the eleventh aspect is:
In the lifting means specifying method defined in the tenth aspect,
The lifting means is a staircase;
In the first specifying step, the number of steps of the staircase is further specified based on the probe information corresponding to the changed atmospheric pressure portion.
According to the lifting / lowering means specifying method of the eleventh aspect defined in this way, the same effects as those of the fifth aspect are achieved.

The lifting means specifying method defined in the twelfth aspect is:
In the lifting means specifying method defined in any of the ninth to eleventh aspects,
In the probe information storing step, the step information of the user is further stored,
A second extraction unit compares a feature point on the map data with a probe information group composed of probe information corresponding to the constant pressure portion, and a probe that matches the characteristic of the feature point from the probe information group A second extraction step for extracting information as feature probe information;
A first calculation step in which a first calculation unit calculates a route distance on the map data from the boundary point position to a first position corresponding to the feature point;
A second computing unit that is a walking distance from the boundary point position to a second position corresponding to the extracted characteristic probe information, the walking distance along the walking route represented by the probe information group; A second calculation step for calculating based on the stride information;
A second specifying unit that compares the route distance with the walking distance and specifies the depth of the elevating means;
Is provided.
According to the elevating / lowering means specifying method of the twelfth aspect defined as described above, the same effect as that of the sixth aspect is achieved.

The computer program defined in the thirteenth aspect is
A computer program for specifying lifting means, comprising:
Storage means for storing map data including the location information of the doorway in the map database;
ID information that can be identified from the mobile terminal device, which can identify the user of the mobile terminal device, positioning signal reception information indicating whether or not a positioning signal is received, position information, atmospheric pressure information, and acceleration information. Probe information storage means for storing probe information including,
A series of probe information having the same ID information and continuous in time, a first part indicating that the positioning signal reception information is received and a second part indicating that the positioning signal reception information is not received; First extraction means for extracting probe information corresponding to the second portion satisfying a predetermined condition from a series of probe information in which a boundary point position corresponding to the boundary point is positioned in the vicinity of the entrance;
First specifying means for specifying lifting means located at the doorway based on atmospheric pressure information and acceleration information included in the extracted probe information;
To function as.
According to the computer program of the 13th aspect prescribed | regulated in this way, there exists an effect equivalent to a 1st aspect.

The computer program defined in the fourteenth aspect is:
In the computer program defined in the thirteenth aspect,
The elevating means is at least one of a staircase, a slope, an escalator, and an elevator.
According to the computer program of the 14th aspect prescribed | regulated in this way, there exists an effect equivalent to a 2nd aspect.

The computer program defined in the fifteenth aspect is
In the computer program defined in the thirteenth or fourteenth aspect,
The predetermined condition is that the second portion includes a changing atmospheric pressure portion and a constant atmospheric pressure portion in order from the boundary point.
According to the computer program of the 15th aspect prescribed | regulated in this way, there exists an effect equivalent to a 3rd aspect.

The computer program defined in the sixteenth aspect is:
In the computer program defined in the fifteenth aspect,
The first specifying means specifies the lifting / lowering means based on probe information corresponding to the changed atmospheric pressure portion in the extracted probe information.
According to the computer program of the 16th aspect prescribed | regulated in this way, there exists an effect equivalent to a 4th aspect.

The computer program defined in the seventeenth aspect is:
In the computer program defined in the sixteenth aspect,
The lifting means is a staircase;
The first specifying means further specifies the number of steps of the staircase based on probe information corresponding to the changed atmospheric pressure portion.
According to the computer program of the 17th aspect prescribed | regulated in this way, there exists an effect equivalent to a 5th aspect.

The computer program defined in the eighteenth aspect is:
In the computer program defined in the fifteenth to seventeenth aspects,
The probe information storage means further stores the user stride information,
Said computer further
The feature point on the map data is compared with the probe information group composed of the probe information corresponding to the constant pressure portion, and the probe information matching the characteristic of the feature point is extracted from the probe information group as the feature probe information. Second extracting means for
First calculating means for calculating a route distance on the map data from the boundary point position to a first position corresponding to the feature point;
A walking distance from the boundary point position to a second position corresponding to the extracted characteristic probe information, and a walking distance along the walking route represented by the probe information group is calculated based on the stride information. A second computing means;
A second specifying means for comparing the route distance and the walking distance to specify the depth of the lifting means;
To function as.
According to the computer program of the 18th aspect prescribed | regulated in this way, there exists an effect equivalent to a 6th aspect.

  A recording medium for recording the computer program defined in any of the thirteenth to eighteenth aspects is defined in the nineteenth aspect.

FIG. 1 is a block diagram schematically showing the configuration of the lifting / lowering means specifying device 1 of the first embodiment of the present invention. FIG. 2 is an explanatory diagram showing an example of each data structure of the probe information table stored in the probe information storage unit 5. FIG. 3 is an explanatory diagram for explaining an example of the entrance / exit selection method by the selection unit 7 and the probe information extraction method by the first extraction unit 9 in the lifting / lowering means specifying device 1 according to the first embodiment of the present invention. FIG. 4 is a flowchart showing an example of the lifting means specifying method implemented by the lifting means specifying apparatus 1 according to the first embodiment of the present invention. FIG. 5 is a flowchart showing an example of detailed operation of step 3 shown in FIG. FIG. 6 is a block diagram schematically showing the configuration of the lifting / lowering means specifying device 21 of the second embodiment of the present invention. FIG. 7 is an explanatory diagram showing another example of each data structure of the probe information table stored in the probe information storage unit 5. FIG. 8 shows a feature point designation method by the designation unit 23, a feature probe information extraction method by the second extraction unit 24, and a first calculation unit 25 in the lifting / lowering means specifying device 21 according to the second embodiment of the present invention. One of the calculation method of the route distance and the calculation method of the walking distance by the second calculation unit 26 FIG. 9 is a block diagram schematically showing the configuration of the lifting / lowering means specifying device 51 of the first embodiment of the present invention. It is explanatory drawing explaining an example.

  Several embodiments and examples according to the present disclosure will be described below with reference to the accompanying drawings.

<First Embodiment>
FIG. 1 is a block diagram schematically showing the configuration of a lifting / lowering means specifying device 1 as an embodiment of the present invention. This will be described below with reference to the schematic diagrams shown in FIGS.
As shown in FIG. 1, the lifting / lowering means specifying device 1 of the first embodiment includes a map database 3, an entrance / exit information storage unit 4, a probe information storage unit 5, a selection unit 7, a first extraction unit 9, and a first specification. The unit 11 is provided.

  The map database 3 stores map data. The map data includes information on road elements for defining map information such as links and nodes, information drawn on a three-dimensional map such as structures, and the like. The map data may be stored as point cloud data or image data from a laser scanner, for example. The map data may include not only a map on the ground but also a map inside a structure such as an underground shopping center or a subway station or a basement. The map database 3 includes an entrance / exit information storage unit 4.

The entrance / exit information storage unit 4 stores entrance / exit position information. Examples of the entrance / exit include an entrance / exit that connects the ground and the underground, an entrance / exit to a structure, and the like.
The probe information storage unit 5 includes ID information that can be identified from the mobile terminal device, the positioning signal reception information indicating whether or not the positioning signal is received, position information, and atmospheric pressure. Probe information including information and acceleration information is stored. Examples of the mobile terminal device include a communication terminal device that can be carried by a user. For example, a mobile phone, a PDA (Portable Digital Assistant), a portable game machine, a notebook PC, a PND (Portable Navigation Device), a smartphone, a head, and the like. For example, a wearable device that can be worn on a part or an arm. The mobile terminal device includes a GPS device, a pressure sensor, an acceleration sensor, and the like as positioning means that can be measured outdoors but cannot be measured indoors or underground. The probe information storage unit 5 stores, for example, a probe information table for each user of the mobile terminal device. An example of the data structure of the probe information table with user ID 001 as an example is shown in FIG. As shown in FIG. 2, the probe information table has a probe number column, a time column, a GPS signal reception information column, a GPS position information column, an atmospheric pressure information column, an acceleration information column, and the like. The number assigned to each piece of probe information related to the user ID 001 is stored in the probe number column. The date / time column stores the date / time when each piece of probe information was acquired. In this example, probe information is acquired every second. In the GPS signal reception information column, information related to whether or not a GPS signal as a positioning signal is received is stored. In this example, “Yes” information is stored when a GPS signal is received, and “No” information is stored when no GPS signal is received. In the GPS position information column, position information measured by a GPS signal is stored. In this example, coordinate information obtained by positioning using a GPS signal is stored, and “−” is stored if positioning is not performed. In the barometric pressure information column, the barometric pressure value detected by the barometric pressure sensor, or a change in altitude compared with the barometric pressure value and the previous barometric pressure value is obtained by numerical value or from the comparison, “No change”, “Descent” or “ Information such as “rising” is stored. In this example, a change in altitude compared with the previous atmospheric pressure value is stored as numerical value as atmospheric pressure information. Here, “0” means that there is no change in altitude, and “−20” means that it has been lowered by 20 cm. The acceleration information column stores acceleration values detected by the acceleration sensor, or information such as “walking” or “stop” obtained from the acceleration values. In this example, information on “walking” or “stop” is stored as acceleration information. It is preferable that the probe information storage unit 5 further includes a change with time of an acceleration value indicated by a waveform or the like as probe information or a change with time of an atmospheric pressure value.

The selection unit 7 selects an arbitrary entrance / exit stored in the entrance / exit information storage unit 4. The selection method is not particularly limited. For example, the map database 3 can be further referred to, and an entrance / exit existing in an arbitrarily determined area can be selected automatically or manually by an operator. In this example, it is assumed that the selection unit 7 has selected the entrance / exit E shown in FIG.
The first extraction unit 9 refers to the probe information storage unit 5 and is a series of probe information that includes the same ID information and is continuous in time, and the positioning signal reception information indicates that reception is present. Of a series of probe information in which a boundary point position corresponding to a boundary point between the second portion and the second portion indicating that the positioning signal reception information is not received is located in the vicinity of the entrance selected by the selection unit 7 Probe information corresponding to the second portion satisfying the condition is extracted. The first extraction unit 9 can include, for example, a 1-1 extraction unit 91, a 1-2 extraction unit 93, and a 1-3 extraction unit 95, and performs the first extraction process as described below. Can be executed. The following description is an example of the first extraction process, and the present invention is not limited to this.

The first-first extracting unit 91 first selects a vicinity of the entrance E selected by the selection unit 7, that is, a predetermined range including the entrance E (a circle indicated by a dotted line centering on the entrance E in FIG. 3). Identify.
The 1-2 extraction unit 93 is a series of temporally continuous probe information that includes the same ID information among the probe information stored in the probe information storage unit 5 and receives the GPS signal reception information. A series of probes in which a boundary point position B corresponding to a boundary point between the first portion P1 indicating presence and the second portion P2 indicating that the GPS signal reception information is not received is located in the vicinity of the entrance E As information, probe information ID001 shown in FIGS. 2 and 3 is specified.
The 1st-3 extraction part 95 extracts the probe information corresponding to the 2nd part which satisfy | fills predetermined conditions among probe information ID001. In this example, the first to third extraction units 95 extract a second portion P2 that satisfies a condition in which the second portion includes a change pressure portion and a constant pressure portion in order from the boundary point. . That is, the second portion P2 included in the probe information ID001 is configured in the order of a change atmospheric pressure portion where the atmospheric pressure information is changed and a constant atmospheric pressure portion where the atmospheric pressure information is constant, starting from the boundary point. Probe information (probe number 003 and later) corresponding to the second portion P2 is extracted.

  The first specifying unit 11 moves up and down located at the entrance selected by the selection unit 7 based on the atmospheric pressure information and the acceleration information included in the probe information corresponding to the second part extracted by the first extraction unit 9. Identify the means. The 1st specific | specification part 11 can specify at least 1 among a staircase, a slope, an escalator, and an elevator as an raising / lowering means, for example. Moreover, the 1st specific | specification part 11 specifies the said raising / lowering means based on the probe information corresponding to a change atmospheric | air pressure part among the probe information (2nd part P2) extracted by the 1st extraction part 9. FIG. Can do. The specific method is not particularly limited, and can be performed by a conventional method. The first specifying unit 11 includes, for example, a database in which acceleration information and atmospheric pressure information peculiar to the lifting means are associated with each lifting means, and specifies the lifting means by collating with the database. May be. The acceleration information unique to the lifting means may be information such as “walking” or “stop”, or may be a waveform of an acceleration value characteristic of each lifting means. Further, the atmospheric pressure information unique to the elevating means may be information such as “no change”, “lowering”, or “rising”, or may be a waveform of the atmospheric pressure characteristic of each elevating means. The 1st specific | specification part 11 can identify the said raising / lowering means by combining these information and comparing with the acceleration information and atmospheric | air pressure information of probe information ID001. For example, when the acceleration information is “walking” and the atmospheric pressure information is “down” or “up”, the lifting means can be specified as “stairs” or “slope”, while the acceleration information is “stop”. When the atmospheric pressure information is “down” or “up”, the lifting means can be specified as “escalator” or “elevator”. Further, the identification of “stairs” and “slope” and the identification of “escalator” and “elevator” can be performed by a waveform of an acceleration value or a waveform of an atmospheric pressure characteristic of the elevating means or a combination thereof.

Furthermore, when the first specifying unit 11 specifies the elevating means as “stairs”, the first specifying unit 11 can specify the number of steps of the steps. Although the said specific method is not specifically limited, For example, it can identify based on the acceleration information in the said change atmospheric pressure part. That is, the number of times the acceleration information is indicated as “walking” can be specified as the number of steps. Taking the probe information ID 001 in FIG. 2 as an example, since all the acceleration information of probe numbers 003 to 018 corresponding to the changed atmospheric pressure portion is “walking”, the stairs can be specified as 16 steps. As another example, an acceleration value waveform may be used. With reference to the fact that a large vertical acceleration amplitude is detected when ascending and descending the stairs, the number of times that the large acceleration amplitude is detected in the changed atmospheric pressure portion can be specified as the number of steps.
In addition, when the first extraction unit 9 extracts user probe information having a plurality of different ID information, and the first specifying unit 11 specifies different lifting means based on the respective probe information. Both of them can be specified as those where the different elevating means coexist at the entrance / exit.

FIG. 4 is a flowchart showing an example of the lifting means specifying method implemented by the lifting means specifying device 1 shown in FIG.
In step 1, the selection unit 7 selects an arbitrary entrance / exit stored in the entrance / exit information storage unit 4. In this example, it is assumed that the entrance / exit E shown in FIG.
In step 3, the first extraction unit 9 refers to the probe information storage unit 5 and is a series of temporally continuous probe information having the same ID information, and the positioning signal reception information is received. The boundary point position corresponding to the boundary point between the first part indicating the position and the second part indicating that the positioning signal reception information is not received is a series of probe information located in the vicinity of the entrance / exit E selected in step 1 Of these, probe information corresponding to the second portion that satisfies the predetermined condition is extracted.

An example of the detailed operation of step 3 executed by the first extraction unit 9 will be described with reference to FIG.
In step 31, the first-first extraction unit 91 specifies a predetermined range (for example, a radius of 100 cm) centered on the doorway E selected in step 1.
In step 33, the 1-2 extraction unit 93 is a series of probe information that includes the same ID information among the probe information stored in the probe information storage unit 5 and is temporally continuous. In step 31, the boundary point position B corresponding to the boundary point between the first part P1 in which the GPS signal reception information is received and the second part P2 in which the GPS signal reception information is not received is identified A series of probe information located in the specified range is specified. In this example, the probe information ID001 shown in FIGS. 2 and 3 is specified.

In step 35, the 1-3 extraction part 95 specifies the 2nd part P2 among the probe information ID001 specified by step 33. FIG.
In step 37, the first to third extraction unit 95 determines whether or not the second portion P2 specified in step 35 is configured to include a change atmospheric pressure portion and a constant atmospheric pressure portion in order from the boundary point. If YES in step 37, the process proceeds to step 39.
In step 39, the first to third extraction unit 95 extracts the second portion P2 specified in step 35.

  Returning to FIG. 4, in step 5, the first specifying unit 11 is selected in step 1 based on the atmospheric pressure information and acceleration information constituting the probe information corresponding to the second portion P <b> 2 extracted in step 3. The raising / lowering means located in the entrance / exit E is specified.

Second Embodiment
FIG. 6 is a block diagram schematically showing the configuration of the lifting / lowering means specifying device 21 as an embodiment of the present invention. This will be described below with reference to the schematic diagrams shown in FIGS.
As shown in FIG. 6, the lifting / lowering means specifying device 21 of the second embodiment includes, in addition to the components included in the lifting / lowering means specifying device 1 of the first embodiment, a designation unit 23, a second extraction unit 24, A first calculation unit 25, a second calculation unit 26, and a second specifying unit 27 are provided. In FIG. 6, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is partially omitted.

  In the probe information storage unit 5, stride information, estimated position information, and angle information of the user of the mobile terminal device including the lifting / lowering means specifying device 21 are further stored. An example of the data structure of the probe information table of the user ID 001 in this example is shown in FIG. As shown in FIG. 7, the probe information table includes an estimated position information field and an angle information field in addition to a probe number field, a time field, a GPS signal reception information field, a GPS position information field, an atmospheric pressure information field, and an acceleration information field. Have. The estimated position information column stores estimated position information of the mobile terminal device after reception of GPS signals is interrupted. The estimated position information can be calculated based on the user's stride and the number of steps, for example, using the GPS position information immediately before the GPS signal is interrupted as a reference position. For example, the number of steps can be estimated from the acceleration amplitude in the vertical direction detected by the acceleration sensor. In the angle information column, the angle value detected by the gyro sensor, or the change in angle compared with the angle value immediately before is obtained by numerical value or from the comparison, “no change”, “right turn” or “ Information such as “turn left” is stored. In this example, as angle information, a change in angle compared to the immediately preceding angle value is stored numerically together with the rotation direction. Here, “0” means that there is no angle change, and “right 90 °” means that it has been rotated 90 degrees to the right with respect to the traveling direction. In addition, a step length of 70 cm is stored as user step length information.

The first extraction unit 9 extracts the probe information corresponding to the second portion P2 included in the probe information ID001 with reference to the probe information storage unit 5 by the method described above. In FIG. 8, the movement history of the probe information corresponding to the extracted second portion P2 is indicated by a dotted line.
Based on the probe information extracted by the first extraction unit 9 according to the method described above, the first specifying unit 11 uses a staircase as an elevating means located at the entrance selected by the selection unit 7 and the stairs. Specify the number of steps. In this example, the number of steps is specified as 16 steps.
The designation unit 23 refers to the map database 3 and designates a feature point on the passage connected to the entrance / exit E selected by the selection unit 7. The feature point is not particularly limited as long as the feature can appear in the movement based on the probe information. Such feature points include, for example, a point connected to a right-turn or left-turn path, and a step or a lifting means. This feature point is not limited to the point indicating the point as described above, and may be a polygon indicating a neighboring region including the point. Such a polygon can be, for example, an intersection area between a passage connected to the entrance and the right-left turn passage. In this example, as shown in FIG. 8, it is assumed that points F1, F2, and F3 connected to the right-turn and left-turn paths are specified as feature points on the path connected to the entrance E.

  The second extracting unit 24 uses the feature information on the map data specified by the specifying unit 23 and the probe information corresponding to the constant pressure portion included in the second portion P2 extracted by the first extracting unit 9. The probe information group configured is compared, and probe information that matches the characteristics of the designated feature point is extracted from the probe information group as feature probe information. In this example, the second extraction unit 24 shows the characteristic probe information that matches the characteristic of “connecting to the right and left turn passages” of the feature point F2 on the map data designated by the designation unit 23 as shown in FIG. From the probe information table shown, the probe information of the probe number 050 having the feature that the angle information is “right 90 °” is extracted. The position indicated by the extracted characteristic probe information corresponds to the point f shown in FIG. Specifically, probe information that exists within a predetermined range from the feature points F1, F2, and F3 and has the above-described features can be extracted as feature probe information. In this example, there is no feature probe information corresponding to the feature points F1 and F3. In addition, when there are a plurality of feature probe information, it is preferable to select feature probe information closer to the boundary point.

  The first calculation unit 25 refers to the map database 3, the first extraction unit 9, and the designation unit 23, and calculates the route distance on the map data from the boundary point position to the first position corresponding to the feature point. Calculate. The calculation method is not particularly limited, but can be performed as follows. Referring to FIG. 8, the boundary point position B is read with reference to the first extraction unit 9, and the path on the map data to the first position corresponding to the feature point F2 designated by the designation unit 23 is read. Calculate the path distance along. That is, the distance indicated by the symbol d1 in FIG. 8 is calculated as the path distance. In this example, it is assumed that the path distance d1 is calculated as 3180 cm.

  The second calculation unit 26 refers to the first extraction unit 9 and the second extraction unit 24 and calculates the walking distance from the boundary point position to the second position corresponding to the extracted characteristic probe information. Then, the walking distance along the walking route represented by the probe information group is calculated based on the stride information. The calculation method is not particularly limited, but can be performed as follows. Referring to FIG. 8, the boundary point position B is read with reference to the first extraction unit 9, and the second position corresponding to the characteristic probe information extracted by the second extraction unit 24 (point in the figure). The walking distance up to f), which is the walking distance along the walking path represented by the probe information group, is calculated based on the number-of-steps information and the stride information based on the acceleration information as the probe information. That is, the distance indicated by the symbol d2 in FIG. 8 is calculated as the walking distance. In this example, the walking distance d2 is the number of steps in which the vertical acceleration amplitude as the probe information corresponding to the distance from the boundary point position B to the second position f is detected with respect to a step length of 70 cm. For example, it is calculated as 3500 cm obtained by multiplying the step length of 70 cm by the number of steps of 50 steps.

  The second specifying unit 27 refers to the first calculation unit 25 and the second calculation unit 26, compares the route distance and the walking distance, and specifies the depth of the lifting means. Specifically, a difference d3 (320 cm) between the route distance d1 (3180 cm) and the walking distance d2 (3500 cm) is calculated. The calculated difference d3 is regarded as a difference generated in the section of the staircase, and the difference per stage (20 cm / stage) is calculated by dividing the difference d3 (320 cm) by the number of steps of the staircase (16 stages). Next, 50 cm obtained by subtracting the calculated difference (20 cm / step) from the stride (70 cm / step) is specified as the depth of one step of the stairs.

<First embodiment>
FIG. 9 is a block diagram schematically showing the configuration of the lifting means specifying device 51 as an embodiment of the present invention. The lifting / lowering means specifying device 51 of the first example includes a control unit 510, a memory unit 511, an input unit 512, an output unit 513, and an interface unit, in addition to the components constituting the lifting / lowering means specifying device 1 of the first embodiment. 514. 9, the same components as those in FIGS. 1 and 6 are denoted by the same reference numerals, and the description thereof is partially omitted.

The control unit 510 is a computer device including a buffer memory and other devices, and controls other components constituting the lifting / lowering means specifying device 51.
A computer program is stored in the memory unit 511, and this computer program is read into the control unit 510, which is a computer device, and causes it to function. This computer program can be stored in a general-purpose medium such as an SD (registered trademark) memory card.

The input unit 512 is used, for example, for inputting a command from the lifting / lowering means specifying device user. Specifically, it is used when inputting the range of the entrance / exit area in the selection unit 7 or when the entrance / exit is performed manually by the operator. As the input unit 512, a pointing device such as a touch panel or a voice input device such as a keyboard or a microphone that cooperates with display contents of a mouse, a light pen, or a display can be used.
The output unit 513 includes a display, and includes a three-dimensional map and an underground map drawn based on the map database 3, an entrance selected by the selection unit 7, a result of extraction by the first extraction unit 9, and a first identification unit Information about 11 specific results and so on is displayed. The output unit 513 may include a voice transmission unit and output the information by voice.

  The interface unit 514 connects the lifting / lowering means specifying device 51 to a wireless network or the like.

  In the above-described embodiments and examples, the method for specifying the lifting / lowering means when the entrance / exit as the target for specifying the lifting / lowering means is used as the entrance to the basement has been described. It is possible to specify the lifting means. That is, the selection unit selects an arbitrary entrance / exit as an exit, and the first extraction unit refers to the probe information storage unit, and includes a series of probe information including the same ID information and continuous in time. In the vicinity of the entrance / exit where the boundary point position corresponding to the boundary point between the first part indicating that the positioning signal reception information is received and the second part indicating that the positioning signal reception information is not received is selected by the selection unit The probe information corresponding to the second portion configured to include the changing atmospheric pressure portion and the constant atmospheric pressure portion is extracted in order from the boundary point. In this case, the probe information in which the position information in the underground shopping area is corrected can be used as necessary by using the underground positioning means such as a beacon or WiFi installed in the underground shopping mall.

  As mentioned above, although embodiment and the Example of this indication were described, this invention is not limited to description of each aspect of the said indication, embodiment (Example), or its modification. Various modifications are also included in the present invention as long as those skilled in the art can easily conceive without departing from the scope of the claims. That is, the present invention modifies the above-described embodiment (example), or combines two or more embodiments (examples) of the above-described embodiments (examples) to form one embodiment (example). Example) is partially implemented, and further includes a mode in which two or more embodiments (examples) are partially combined.

  In this specification, expressions such as “comprising”, “including”, or “having” one element are not exclusive expressions intended to exclude the presence of other elements, It is intended to include components.

1 21 Elevating means identification device 3 Map database 4 Exit information storage unit 5 Probe information storage unit 7 Selection unit 9 24 Extraction unit 11 27 Identification unit 23 Designation unit 25 26 Calculation unit

Claims (19)

A map database for storing map data including location information of the doorway;
ID information that can be identified from the mobile terminal device, which can identify the user of the mobile terminal device, positioning signal reception information indicating whether or not a positioning signal is received, position information, atmospheric pressure information, and acceleration information. A probe information storage unit for storing probe information including,
A series of probe information having the same ID information and continuous in time, a first part indicating that the positioning signal reception information is received and a second part indicating that the positioning signal reception information is not received; A first extraction unit that extracts probe information corresponding to the second part satisfying a predetermined condition among a series of probe information in which a boundary point position corresponding to the boundary point is positioned in the vicinity of the entrance;
A first specifying unit that specifies lifting means located at the entrance based on atmospheric pressure information and acceleration information included in the extracted probe information;
A lifting / lowering means specifying device. The elevating means is at least one of a staircase, a slope, an escalator, and an elevator.
The lifting / lowering means specifying device according to claim 1. The predetermined condition is that the second part is configured to include a change atmospheric pressure part and a constant atmospheric pressure part in order from the boundary point.
The lifting / lowering means specifying device according to claim 1 or 2. The first specifying unit specifies the elevating means based on probe information corresponding to the changed atmospheric pressure portion in the extracted probe information.
4. The lifting / lowering means specifying device according to claim 3. The lifting means is a staircase;
The first specifying unit further specifies the number of steps of the staircase based on the probe information corresponding to the changed atmospheric pressure portion,
The lifting / lowering means specifying device according to claim 4. The probe information storage unit further stores the user's stride information,
The feature point on the map data is compared with the probe information group composed of the probe information corresponding to the constant pressure portion, and the probe information that matches the characteristic of the feature point is extracted from the probe information group as the feature probe information. A second extraction unit that
A first calculation unit for calculating a route distance on the map data from the boundary point position to a first position corresponding to the feature point;
A walking distance from the boundary point position to a second position corresponding to the extracted characteristic probe information, and a walking distance along the walking route represented by the probe information group is calculated based on the stride information. A second computing unit;
A second specifying unit that compares the route distance and the walking distance and specifies the depth of the elevating means;
The lifting means specifying device according to any one of claims 3 to 5, comprising: A storage step of storing map data including position information of the entrance / exit in a map database;
ID information that can be identified from the mobile terminal device, which can identify the user of the mobile terminal device, positioning signal reception information indicating whether or not a positioning signal is received, position information, atmospheric pressure information, and acceleration information. Probe information storage step for storing the probe information including the probe information in the probe information storage unit,
The first extraction unit includes a series of probe information that includes the same ID information and is continuous in time, the first portion indicating that the positioning signal reception information is received and the positioning signal reception information are not received. First of extracting probe information corresponding to the second part satisfying a predetermined condition from a series of probe information in which a boundary point position corresponding to a boundary point with the second part indicating Extraction steps of
A first specifying unit for specifying a lifting means located at the doorway based on atmospheric pressure information and acceleration information included in the extracted probe information;
A lifting / lowering means specifying method. The elevating means is at least one of a staircase, a slope, an escalator, and an elevator.
The lifting / lowering means specifying method according to claim 7. The predetermined condition is that the second part is configured to include a change atmospheric pressure part and a constant atmospheric pressure part in order from the boundary point.
The lifting / lowering means specifying method according to claim 7 or 8. In the first specifying step, the lifting means is specified based on the probe information corresponding to the changed atmospheric pressure portion in the extracted probe information.
The lifting / lowering means specifying method according to claim 9. The lifting means is a staircase;
In the first specifying step, based on the probe information corresponding to the changed atmospheric pressure portion, further specifying the number of steps of the staircase,
The lifting / lowering means specifying method according to claim 10. In the probe information storing step, the step information of the user is further stored,
A second extraction unit compares a feature point on the map data with a probe information group composed of probe information corresponding to the constant pressure portion, and a probe that matches the characteristic of the feature point from the probe information group A second extraction step for extracting information as feature probe information;
A first calculation step in which a first calculation unit calculates a route distance on the map data from the boundary point position to a first position corresponding to the feature point;
A second computing unit that is a walking distance from the boundary point position to a second position corresponding to the extracted characteristic probe information, the walking distance along the walking route represented by the probe information group; A second calculation step for calculating based on the stride information;
A second specifying unit that compares the route distance with the walking distance and specifies the depth of the elevating means;
The elevating / lowering means specifying method according to any one of claims 9 to 11. A computer program for specifying lifting means, comprising:
Storage means for storing map data including the location information of the doorway in the map database;
ID information that can be identified from the mobile terminal device, which can identify the user of the mobile terminal device, positioning signal reception information indicating whether or not a positioning signal is received, position information, atmospheric pressure information, and acceleration information. Probe information storage means for storing probe information including,
A series of probe information having the same ID information and continuous in time, a first part indicating that the positioning signal reception information is received and a second part indicating that the positioning signal reception information is not received; First extraction means for extracting probe information corresponding to the second portion satisfying a predetermined condition from a series of probe information in which a boundary point position corresponding to the boundary point is positioned in the vicinity of the entrance;
First specifying means for specifying lifting means located at the doorway based on atmospheric pressure information and acceleration information included in the extracted probe information;
As a computer program. The elevating means is at least one of a staircase, a slope, an escalator, and an elevator.
The computer program according to claim 13. The predetermined condition is that the second part is configured to include a change atmospheric pressure part and a constant atmospheric pressure part in order from the boundary point.
The computer program according to claim 13 or 14. The first specifying means specifies the elevating means based on probe information corresponding to the changed atmospheric pressure portion in the extracted probe information.
The computer program according to claim 15. The lifting means is a staircase;
The first specifying means further specifies the number of steps of the staircase based on probe information corresponding to the changed atmospheric pressure portion.
The computer program according to claim 16. The probe information storage means further stores the user stride information,
Said computer further
The feature point on the map data is compared with the probe information group composed of the probe information corresponding to the constant pressure portion, and the probe information that matches the characteristic of the feature point is extracted from the probe information group as the feature probe information. Second extracting means for
First calculating means for calculating a route distance on the map data from the boundary point position to a first position corresponding to the feature point;
A walking distance from the boundary point position to a second position corresponding to the extracted characteristic probe information, and a walking distance along the walking route represented by the probe information group is calculated based on the stride information. A second computing means;
A second specifying means for comparing the route distance and the walking distance to specify the depth of the lifting means;
The computer program as described in any one of Claims 15-17 made to function as.   The recording medium which records the computer program as described in any one of Claims 13-18.

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