JP2019028790A - Information processing device, information processing method, and information processing program - Google Patents

Abstract

To provide an information processing device, an information processing method, and an information processing program capable of easily constructing a mechanism to grasp traffic conditions.SOLUTION: An information processing device including an acquisition section that acquires predetermined information via a base station related to a mobile terminal for a plurality of mobile terminals, in which the predetermined information includes at least one of identification information of the mobile terminal, identification information of the base station, reception power at the mobile terminal of a communication signal transmitted from the base station, reception time and arrival direction, and the acquisition section further acquires base station position information which is position information of the base station corresponding to the identification information of the base station included in the predetermined information and provides a position specifying section that calculates terminal position information that is position information of the mobile terminal based on the predetermined information and the base station position information acquired by the acquisition section; and a traffic information processing section that performs processing of transmitting the traffic information including terminal position information calculated by the position specifying section to a device used for traffic control.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information processing apparatus, an information processing method, and an information processing program.

  2. Description of the Related Art Conventionally, a technique for controlling the lighting timing of a traffic signal based on a traffic congestion situation has been developed. For example, Japanese Unexamined Patent Publication No. 2001-134893 (Patent Document 1) describes the following traffic signal control device. In other words, the traffic signal control device is a collection means for collecting traffic information by means of a sensor provided on the road, and predicts fluctuations in traffic conditions from the present to the future, and optimizes the signal control parameters by the rolling horizon method. Means.

JP 2001-134893 A

  However, as described in Patent Document 1, when collecting traffic information obtained by a sensor provided on a road, it is necessary to install many sensors, and many sensors are installed, maintained and maintained. Cost is required.

  Therefore, for example, information obtained from an optical beacon installed by a prefectural police, information from a vehicle equipped with an optical beacon onboard device, or traffic obtained from a communication signal between vehicles equipped with an ITS (Intelligent Transport Systems) onboard device. A method for collecting information and controlling traffic signals can be considered. However, in such a method, it is required that the optical beacon vehicle-mounted device or the ITS vehicle-mounted device is mounted on many vehicles.

  Another possible method is to control traffic signals by collecting traffic information obtained by using telematics services provided by private companies. However, in such a method, if the penetration rate of the telematics service is low, traffic information cannot be collected sufficiently.

  The present invention has been made to solve the above-described problem, and an object thereof is to provide an information processing apparatus, an information processing method, and an information processing program capable of easily constructing a mechanism for grasping a traffic situation. It is.

  (1) In order to solve the above problem, an information processing apparatus according to an aspect of the present invention includes an acquisition unit that acquires predetermined information via a base station related to a mobile terminal for the plurality of mobile terminals, and the predetermined information Includes identification information of the mobile terminal, identification information of the base station, and at least one of reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal. The acquisition unit further acquires base station position information that is position information of the base station corresponding to the identification information of the base station included in the predetermined information, and further, the predetermined information acquired by the acquisition unit And a position specifying unit that calculates terminal position information that is position information of the mobile terminal based on the base station position information, and the terminal position information calculated by the position specifying unit. Traffic information, and a traffic information processing unit that performs a process of transmitting to the apparatus used in traffic control.

  (5) In order to solve the above-described problem, an information processing method according to an aspect of the present invention is an information processing method in an information processing apparatus, and includes a plurality of mobile terminals that transmit predetermined information via a base station related to a mobile terminal. The location information of the mobile terminal based on base station location information which is location information of the base station corresponding to the obtained predetermined information and the identification information of the base station included in the predetermined information Calculating the terminal location information, and performing a process of transmitting the traffic information including the calculated terminal location information to a device used for traffic control, wherein the predetermined information is an identification of the mobile terminal. At least one of information, identification information of the base station, and reception power, reception time and arrival direction of the communication signal transmitted from the base station at the mobile terminal Re or including one a.

  (6) In order to solve the above-described problem, an information processing program according to an aspect of the present invention is an information processing program used in an information processing apparatus, and stores predetermined information via a base station related to a mobile terminal. A program for causing a plurality of mobile terminals to function as an acquisition unit, wherein the predetermined information includes identification information of the mobile terminal, identification information of the base station, and a communication signal transmitted from the base station At least one of reception power, reception time, and arrival direction at the mobile terminal, and the acquisition unit is position information of the base station corresponding to the identification information of the base station included in the predetermined information The base station position information is further acquired, and the computer further includes the predetermined information acquired by the acquisition unit and the base station. Based on position information, a position specifying unit that calculates terminal position information, which is position information of the mobile terminal, and traffic information including the terminal position information calculated by the position specifying unit to an apparatus used for traffic control It is a program for functioning as a traffic information processing part which performs the process which transmits.

  The present invention can be realized not only as an information processing apparatus including such a characteristic processing unit, but also as a semiconductor integrated circuit that realizes part or all of the information processing apparatus, or includes an information processing apparatus. It can be realized as an information processing system.

  According to the present invention, a mechanism for grasping traffic conditions can be easily constructed.

FIG. 1 is a diagram showing a configuration of an information processing system according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration of the information processing apparatus according to the embodiment of the present invention. FIG. 3 is a diagram for explaining a terminal position information calculation method (example 1) by the position specifying unit in the information processing apparatus according to the embodiment of the present invention. FIG. 4 is a diagram for explaining a terminal position information calculation method (example 2) by the position specifying unit in the information processing apparatus according to the embodiment of the present invention. FIG. 5 is a diagram for explaining a terminal position information calculation method (example 3) by the position specifying unit in the information processing apparatus according to the embodiment of the present invention. FIG. 6 is a flowchart showing an example of the operation flow of the information processing apparatus in the information processing system according to the embodiment of the present invention.

  First, the contents of the embodiment of the present invention will be listed and described.

  (1) An information processing apparatus according to an embodiment of the present invention includes an acquisition unit that acquires, for a plurality of mobile terminals, predetermined information via a base station related to a mobile terminal, and the predetermined information identifies the mobile terminal. Information, identification information of the base station, and at least one of reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal, and the acquisition unit, Further acquiring base station position information that is position information of the base station corresponding to the identification information of the base station included in the predetermined information, and further, in the predetermined information and the base station position information acquired by the acquisition unit Based on the location specifying unit for calculating the terminal location information, which is the location information of the mobile terminal, and the traffic information including the terminal location information calculated by the location specifying unit is used for traffic control. And a traffic information processing unit that performs a process of transmitting to be device.

  With such a configuration, it is possible to grasp the traffic situation based on the predetermined information related to the mobile terminal, regardless of the installation of many sensors or the spread of the optical beacon onboard device or the ITS onboard device. Therefore, a mechanism for grasping the traffic situation can be easily constructed.

  (2) Preferably, the said information processing apparatus is further provided with the memory | storage part which memorize | stores road map data, and the said traffic information processing part performs the matching process which matches the said road map data and the said terminal position information .

  With such a configuration, the positional relationship between the mobile terminal and the road can be clarified, so that the traffic situation can be grasped more accurately.

  (3) More preferably, the traffic information processing unit is a travel that is a time required for the vehicle to travel on traffic information and a predetermined section of the road related to the terminal position information based on the result of the association processing. At least one of travel time information indicating time is created, and the traffic information further including the created information is transmitted.

  With such a configuration, in a device used for traffic control, it is possible to grasp a specific numerical value representing a road congestion situation as a traffic situation.

  (4) Preferably, the traffic information processing section determines whether or not the corresponding mobile terminal exists in a vehicle based on the terminal position information, and further includes information based on a determination result Process to send.

  With such a configuration, for example, traffic information can be created by selectively using terminal position information of mobile terminals in a vehicle related to road congestion, so that traffic conditions can be grasped more accurately. Can do.

  (5) An information processing method according to an embodiment of the present invention is an information processing method in an information processing apparatus, the step of acquiring predetermined information via a base station related to a mobile terminal for the plurality of mobile terminals, and acquisition Terminal position information that is position information of the mobile terminal is calculated based on the predetermined information and base station position information that is position information of the base station corresponding to the identification information of the base station included in the predetermined information And a step of performing processing for transmitting traffic information including the calculated terminal location information to an apparatus used for traffic control, wherein the predetermined information includes identification information of the mobile terminal, and information on the base station It includes identification information and at least one of reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal.

  By such a method, it is possible to grasp the traffic situation based on the predetermined information related to the mobile terminal, regardless of the installation of many sensors or the spread of the optical beacon onboard device or the ITS onboard device. Therefore, a mechanism for grasping the traffic situation can be easily constructed.

  (6) An information processing program according to an embodiment of the present invention is an information processing program used in an information processing apparatus, and acquires a predetermined information via a base station related to a mobile terminal for the plurality of mobile terminals. The predetermined information includes the identification information of the mobile terminal, the identification information of the base station, and the received power of the communication signal transmitted from the base station at the mobile terminal. , At least one of reception time and arrival direction, and the acquisition unit includes base station position information that is position information of the base station corresponding to identification information of the base station included in the predetermined information. And acquiring the computer based on the predetermined information and the base station location information acquired by the acquisition unit. A traffic information processing unit that calculates terminal location information that is terminal location information, and a traffic information process that transmits traffic information including the terminal location information calculated by the location specification unit to a device used for traffic control This is a program for functioning as a part.

  With such a configuration, it is possible to grasp the traffic situation based on the predetermined information related to the mobile terminal, regardless of the installation of many sensors or the spread of the optical beacon onboard device or the ITS onboard device. Therefore, a mechanism for grasping the traffic situation can be easily constructed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. Moreover, you may combine arbitrarily at least one part of embodiment described below.

<Configuration and basic operation>
[overall structure]
FIG. 1 is a diagram showing a configuration of an information processing system according to an embodiment of the present invention.

  With reference to FIG. 1, the information processing system 201 includes a communication carrier server 101, an information processing apparatus 102, a signal management apparatus 103, a plurality of mobile terminals 121, and a plurality of base stations 151. In FIG. 1, three mobile terminals 121, that is, mobile terminals 121A, 121B, and 121C are shown as an example. In FIG. 1, as an example, three base stations 151, that is, base stations 151A, 151B, and 151C are shown.

  Each mobile terminal 121 transmits / receives control information to / from a plurality of base stations 151 using a control channel.

  The control information includes, for example, position management of the mobile terminal 121 when the mobile terminal 121 is not operated, control related to the handover of the mobile terminal 121, control related to outgoing from the mobile terminal 121 or incoming to the mobile terminal 121. , And information used for controlling transmission power of communication signals from the base station 151 and the mobile terminal 121.

  Further, the control information transmitted from each mobile terminal 121 to the plurality of base stations 151 includes target information as predetermined information. The target information includes identification information (hereinafter referred to as “terminal ID”) of the mobile terminal 121 that is the transmission source. The target information further includes at least one of reception power of the communication signal transmitted from the base station 151 at the mobile terminal 121, reception time of the communication signal at the mobile terminal 121, and arrival direction of the communication signal. One is included.

  The communication signal includes, for example, a pilot signal transmitted from the base station 151 to the mobile terminal 121, and the pilot signal is transmitted simultaneously from the plurality of base stations 151 at a predetermined transmission interval. The communication signal may be a signal transmitted from the plurality of base stations 151 at different timings.

  The communication signal may include the transmission time from the base station 151. In this case, the target information from the mobile terminal 121 includes, for example, the transmission time and the reception time at the mobile terminal 121 of the communication signal from the base station 151.

  The target information includes the reception power at the mobile station 121 of the communication signal transmitted from the base station 151, the reception power at the base station 151 of the communication signal transmitted from the mobile terminal 121, instead of the reception time and the arrival direction. At least one of the reception time and the arrival direction may be included.

  Upon receiving the control information transmitted from the mobile terminal 121, each base station 151 extracts the target information included in the received control information, and adds the identification information (hereinafter, “base station ID”) to the extracted target information. Included). Each base station 151 transmits target information including its own base station ID to the communication carrier server 101.

  The communication carrier server 101 is operated by a carrier that provides communication services. The communication carrier server 101 receives the target information transmitted from each base station 151 and transmits it to the information processing apparatus 102.

  The information processing apparatus 102 acquires predetermined information via the base station 151 related to the mobile terminal 121 for the plurality of mobile terminals 121. That is, the information processing apparatus 102 receives a plurality of pieces of target information transmitted from the communication carrier server 101. Then, the information processing apparatus 102 calculates terminal position information indicating the position of the mobile terminal 121 for each mobile terminal 121 based on the received plurality of pieces of target information.

  In addition, the information processing apparatus 102 creates traffic information including the calculated terminal position information for each mobile terminal 121 and transmits the created traffic information to the signal management apparatus 103.

  The traffic information includes, in addition to the terminal position information, traffic congestion information on the road according to the terminal position information, and travel time information indicating a link travel time c that is a time required for the vehicle to travel on a predetermined section of the road. At least one of them is included. The traffic jam information indicates, for example, the length of a traffic jam portion in a predetermined section (hereinafter referred to as “traffic jam length Y”).

  The signal management device 103 is an example of a device used for traffic control. For example, the signal management device 103 is provided in a traffic control center and controls lighting of a plurality of traffic signals TS in a predetermined area. Specifically, the signal management device 103 controls lighting of one or a plurality of traffic signals TS based on the traffic information transmitted from the information processing device 102.

  The communication carrier server 101 may be configured to collectively transmit a plurality of pieces of target information transmitted from the same base station 151 to the information processing apparatus 102, or select a part of the plurality of pieces of target information. Then, it may be configured to transmit to the information processing apparatus 102.

[Information processing device]
FIG. 2 is a diagram showing a configuration of the information processing apparatus according to the embodiment of the present invention.

  Referring to FIG. 2, information processing device 102 includes an acquisition unit 11, a position specifying unit 12, a traffic information processing unit 13, a storage unit 14, and a transmission unit 15.

(Acquisition unit and storage unit)
The storage unit 14 holds base station information indicating the correspondence between the base station ID and base station position information indicating the position of the base station 151. The storage unit 14 holds road map data indicating the position of the road.

  When receiving the target information transmitted from the telecommunications carrier server 101, the acquiring unit 11 refers to the base station information stored in the storage unit 14 and corresponds to the base station ID included in the target information Get location information. Then, the acquisition unit 11 stores the received target information and the acquired base station position information in the storage unit 14 in association with each other.

  In addition, the memory | storage part 14 does not necessarily need to hold | maintain road map data.

(Location identification part)
The position specifying unit 12 calculates the terminal position information of the mobile terminal 121 corresponding to the target information, for example, periodically based on the set X of the target information stored in the storage unit 14 and the corresponding base station position information. To do.

  More specifically, the position specifying unit 12 extracts a plurality of sets X having the same terminal ID included in the target information from the plurality of sets X stored in the storage unit 14, and the plurality of extracted sets Based on each X target information and base station position information, terminal position information of the mobile terminal 121 corresponding to the terminal ID is calculated.

  And the position specific | specification part 12 matches the terminal position information calculated for every mobile terminal 121, and terminal ID, for example, and preserve | saves it in the memory | storage part 14. FIG. Hereinafter, a specific example of a method for calculating terminal location information by the location specifying unit 12 will be described.

(A) Example 1
FIG. 3 is a diagram for explaining a terminal position information calculation method (example 1) by the position specifying unit in the information processing apparatus according to the embodiment of the present invention.

  Referring to FIG. 3, position specifying unit 12 calculates terminal position information based on the reception intensity included in the target information, for example.

  More specifically, the storage unit 14 holds, for example, distance information indicating a correspondence relationship between the distance between the base station 151 and the mobile terminal 121 and the reception intensity at the mobile terminal 121 of the communication signal from the base station 151.

  Here, it is assumed that the plurality of pieces of target information respectively included in the plurality of sets X extracted by the position specifying unit 12 are the first target information, the second target information, and the third target information. The first target information includes the terminal ID of the mobile terminal 121A and the base station ID of the base station 151A. The second target information includes the terminal ID of the mobile terminal 121A and the base station ID of the base station 151B. The target information includes the terminal ID of the mobile terminal 121A and the base station ID of the base station 151C.

  Further, the first base station position information associated with the first target information indicates the position of the base station 151A, and the second base station position information associated with the second target information is the base station 151B. The third base station position information indicating the position and associated with the third target information indicates the position of the base station 151C.

  In this case, the position specifying unit 12 refers to the distance information stored in the storage unit 14 and calculates the distance LA between the mobile terminal 121A and the base station 151A based on the reception intensity included in the first target information. To do. Further, the position specifying unit 12 specifies an area whose distance from the base station 151A is the distance LA based on the calculated distance LA and the position of the base station 151A indicated by the first base station position information.

  Further, the position specifying unit 12 refers to the distance information stored in the storage unit 14 and calculates the distance LB between the mobile terminal 121A and the base station 151B based on the reception intensity included in the second target information. . Further, the position specifying unit 12 specifies an area whose distance from the base station 151B is the distance LB based on the calculated distance LB and the position of the base station 151B indicated by the second base station position information.

  Further, the position specifying unit 12 refers to the distance information stored in the storage unit 14 and calculates the distance LC between the mobile terminal 121A and the base station 151C based on the reception intensity included in the third target information. . In addition, the position specifying unit 12 specifies an area whose distance from the base station 151C is the distance LC based on the calculated distance LC and the position of the base station 151C indicated by the third base station position information.

  Then, the position specifying unit 12 specifies the overlapping area of the three specified areas as the position of the mobile terminal 121A.

(B) Example 2
FIG. 4 is a diagram for explaining a terminal position information calculation method (example 2) by the position specifying unit in the information processing apparatus according to the embodiment of the present invention.

  With reference to FIG. 4, the position specifying unit 12 may be configured to calculate terminal position information based on a reception time included in the target information.

  Here, for example, the storage unit 14 stores the difference between the reception time ta of the pilot signal from the base station 151A at the mobile terminal 121 and the reception time tb of the pilot signal from the base station 151B at the mobile terminal 121 (= tb− ta) and time difference information indicating the correspondence between the mobile terminal 121 and the area where the mobile terminal 121 is located.

  Further, the time difference information further includes a difference (= tc−ta) between the reception time ta of the pilot signal from the base station 151A at the mobile terminal 121 and the reception time tc of the pilot signal from the base station 151C at the mobile terminal 121. And the corresponding relationship between the area where the mobile terminal 121 is located.

  The position specifying unit 12 refers to the time difference information stored in the storage unit 14, for example, the reception time ta included in the first target information from the base station 151A and the second target information from the base station 151B. The area E1 in which the mobile terminal 121A is located is specified based on the reception time tb included in.

  In addition, the position specifying unit 12 refers to the time difference information stored in the storage unit 14, for example, the reception time ta included in the first target information from the base station 151A and the third time from the base station 151C. Based on the reception time tc included in the target information, the area E2 where the mobile terminal 121A is located is specified.

  Then, the position specifying unit 12 specifies the overlapping area of the specified area E1 and area E2 as the position of the mobile terminal 121A.

(C) Example 3
FIG. 5 is a diagram for explaining a terminal position information calculation method (example 3) by the position specifying unit in the information processing apparatus according to the embodiment of the present invention.

  Referring to FIG. 5, the position specifying unit 12 may be configured to calculate terminal position information based on the arrival direction included in the target information.

  Specifically, the position specifying unit 12 specifies, for example, an angle θa formed by the arrival direction indicated by the first target information from the base station 151A and a predetermined direction. Further, the position specifying unit 12 specifies an angle θb formed by the arrival direction included in the second target information from the base station 151B and a predetermined direction. Further, the position specifying unit 12 specifies an angle θc formed by the arrival direction and the predetermined direction included in the third target information from the base station 151C.

  The position specifying unit 12 then determines the position of the mobile terminal 121A based on the first base station position information, the second base station position information, the third base station position information, and the specified angles θa, θb, and θc. Is identified.

  The location specifying unit 12 is transmitted from a positioning server (not shown) that provides a location information service when there is a mobile terminal 121 equipped with an application that can use a location information service (LBS (Location Based Service)). The terminal location information of the mobile terminal 121 may be acquired via the acquisition unit 11.

(Traffic information processing section and transmission section)
Referring to FIG. 2 again, for example, the traffic information processing unit 13 performs an association process for associating a plurality of terminal position information stored in the storage unit 14 with road map data. And the traffic information processing part 13 performs the process which produces the information based on the result of a matching process, specifically, at least any one of travel time information and traffic jam information, and transmits the traffic information containing the created information . For example, the traffic information processing unit 13 transmits traffic information to the signal management device 103 via the transmission unit 15.

  Upon receiving the traffic information output from the traffic information processing unit 13, the transmission unit 15 transmits the traffic information to the signal management device 103. Hereinafter, the process of the traffic information processing unit 13 will be described in detail.

(A) Determining whether or not the vehicle exists in the vehicle The traffic information processing unit 13 includes a plurality of terminal position information associated with the same terminal ID from a plurality of terminal position information stored in the storage unit 14. To extract. And the traffic information processing part 13 performs the determination process which determines whether the mobile terminal 121 corresponding to the said terminal ID exists in a vehicle based on the extracted some terminal position information.

(A-1) Example 1
More specifically, for example, the traffic information processing unit 13 calculates the movement speed of the corresponding mobile terminal 121 for each predetermined time based on the extracted plurality of terminal position information. And the traffic information processing part 13 determines with the said mobile terminal 121 existing in a vehicle, for example, when the ratio exceeding 1st speed is more than a 1st threshold value among the calculated movement speed for every predetermined time. To do.

  Note that the traffic information processing unit 13 may acquire the measurement result of acceleration by the application via the base station 151 when there is a mobile terminal 121 equipped with an application that can measure acceleration. In this case, the traffic information processing unit 13 can calculate the moving speed of the corresponding mobile terminal 121 every predetermined time based on the acquired acceleration measurement result.

(A-2) Example 2
Moreover, even if the traffic information processing part 13 is a structure which performs the determination process whether the mobile terminal 121 exists in a vehicle by performing matching with the road map data preserve | saved at the memory | storage part 14. FIG. Good.

  For example, the traffic information processing unit 13 acquires road map data stored in the storage unit 14 and performs a corresponding process for associating the acquired road map data with the extracted plurality of terminal position information. Specifically, the traffic information processing unit 13 plots the position of the mobile terminal 121 on a map indicated by road map data.

  When the traffic information processing unit 13 determines that the corresponding mobile terminal 121 is present on the road based on the result of the association process, the traffic information processing unit 13 determines that the mobile terminal 121 is present in the vehicle.

  In addition to the travel time information and traffic jam information, the traffic information processing unit 13 may further include a determination result as to whether or not the mobile terminal 121 is present in the vehicle in the traffic information.

(B) Calculation of link travel time (b-1) Example 1
The traffic information processing unit 13 also calculates a link travel time c, which is a time required for the vehicle to travel on a predetermined section of the road, based on the result of the determination process of whether or not the mobile terminal 121 is present in the vehicle. calculate. The predetermined section is, for example, a section between two signal lamps in the traffic signal TS.

  Specifically, for example, the traffic information processing unit 13 performs a process of associating a plurality of terminal position information of the mobile terminal 121 determined to be present in the vehicle with road map data.

  In addition, the traffic information processing unit 13 is based on, for example, a plurality of reception times included in a plurality of pieces of target information corresponding to the mobile terminal 121 stored in the storage unit 14 and a result of the association process. The time when the mobile terminal 121 passes through one end of the predetermined section and the time when the mobile terminal 121 passes through the other end of the predetermined section are calculated.

  Then, the traffic information processing unit 13 calculates the link travel time c by calculating the difference between the calculated times.

(B-2) Example 2
The traffic information processing unit 13 may calculate the link travel time c by dividing the length of the predetermined section by the moving speed of the mobile terminal 121.

  Specifically, for example, the traffic information processing unit 13 performs a process of associating a plurality of terminal position information of the mobile terminal 121 determined to be present in the vehicle with road map data. And the traffic information processing part 13 calculates the movement locus | trajectory of the said mobile terminal 121 for every predetermined time based on the result of a matching process. Further, the traffic information processing unit 13 calculates the moving speed of the mobile terminal 121 for each predetermined time based on the plurality of terminal position information.

  Then, for example, the traffic information processing unit 13 divides the length of the predetermined section by the average value of the plurality of movement speeds respectively corresponding to the plurality of movement trajectories included in the predetermined section, so that the link travel of the predetermined section is performed. Time c is calculated.

(C) Calculation of traffic jam length Further, the traffic information processing unit 13 calculates a traffic jam length Y that is the length of a traffic jam portion in a predetermined section of the road based on the terminal position information of the mobile terminal 121 determined to be present in the vehicle. calculate.

(C-1) Example 1
For example, the traffic information processing unit 13 determines whether or not the mobile terminal 121 is traveling in a traffic jam based on the terminal position information of the mobile terminal 121 determined to be present in the vehicle. That is, when the traffic information processing unit 13 confirms that the mobile terminal 121 is traveling at a moving speed less than the second threshold continuously for a predetermined period or longer based on the calculated moving speed at every predetermined time. The mobile terminal 121 determines that it is traveling in a traffic jam portion.

  Then, the traffic information processing unit 13 makes such a determination for each mobile terminal 121, and determines the traffic jam length Y based on the terminal position information of one or more mobile terminals 121 that are determined to be traveling in the traffic jam portion. calculate.

(C-2) Example 2
The traffic information processing unit 13 may be configured to calculate the traffic jam length Y using the calculated link travel time c.

  More specifically, for example, the traffic information processing unit 13 is based on the moving speed of the mobile terminal 121 existing in the vehicle traveling in the predetermined section, and is within the unit time that is the number of vehicles traveling in the predetermined section per unit time. The traffic volume b [unit / second] is calculated.

  The storage unit 14 stores, for example, a section length d [m] that is the length of a predetermined section, a vehicle density a [ Vehicle / m], and a non-congested travel speed e [m / second], which is a speed when the vehicle travels in a non-congested portion when there is no traffic jam in part or all of the predetermined section. Yes.

  Specifically, a value such as 0.1 [vehicle / m] is stored in the storage unit 14 as the vehicle density a in the traffic jam, and 1 [m / sec] is used as the non-traffic travel speed e. The value is stored in the storage unit 14.

  Then, the traffic information processing unit 13 calculates the section length d [m], the vehicle density a [vehicle / m] in the traffic jam, and the non-congested travel speed e [m / sec], which are stored in the storage unit 14. Based on the link travel time c [second] and the traffic volume b [unit / second] within the unit time, the traffic jam length Y [m] is calculated by, for example, the equation (1).

  Y = b (c * ed) / (a * eb) (1)

  The traffic information processing unit 13 may create, for example, traffic information including one or more calculated terminal position information, instead of creating traffic information including at least one of travel time information and traffic jam information. Good.

  In addition, the traffic information processing unit 13 does not perform the process of transmitting traffic information to the signal management device 103, but more specifically performs signal lighting control on the traffic signal TS, more specifically, the signal lamp of the traffic signal TS. You may perform the process which transmits to a control machine. The traffic signal TS (signal controller) in this case may be configured to control the lighting of the signal lamp alone without communicating with the signal management device 103. The signal controller is an example of a device used for traffic control, and controls lighting of the signal lamp of the traffic signal TS based on the traffic information transmitted from the information processing device 102.

  In this case, the traffic information from the traffic information processing unit 13 may include terminal position information in addition to or in place of at least one of travel time information and traffic jam information.

  For example, the signal controller controls lighting of the signal lamp of the traffic signal TS based on one or a plurality of terminal position information included in the traffic information.

  For example, at an intersection where two roads R1 and R2 intersect, the traffic volume of the road R1 is small and the traffic volume of the road R2 is large. It is assumed that the lamp is lit red and the signal lamp provided on the road R2 is controlled to light blue.

  In such a case, the signal controller that controls the lighting of these signal lamps in the traffic signal TS receives the traffic information from the information processing apparatus 102, and based on the terminal position information included in the traffic information, the road R1 When the vehicle located at is detected, the lighting of the signal lamp provided on the road R1 is switched from red to blue, and the lighting of the signal lamp provided on the road R2 is switched from blue to red.

  In addition, the traffic information processing unit 13 generates traffic information including terminal position information related to the mobile terminal 121 determined to exist outside the vehicle, and the generated traffic information is transmitted to the signal management device 103 or the signal controller via the transmission unit 15. You may perform the process transmitted to.

  For example, the signal controller controls lighting of the signal lamp of the traffic signal TS based on one or a plurality of terminal position information related to the mobile terminal 121 existing outside the vehicle included in the traffic information.

  For example, because there are a large number of vehicles traveling on the road and a small number of pedestrians crossing the pedestrian crossing of the road, the signal lamp for vehicles in the traffic signal TS lights normally in blue, and the pedestrians It is assumed that the signal light device is directed to light red.

  In such a case, the signal controller that controls lighting of these signal lamps in the traffic signal TS receives the traffic information from the information processing apparatus 102, and based on the terminal position information included in the traffic information, the crossing When a pedestrian located near the sidewalk is detected, for example, the lighting of the signal lamp for the pedestrian is switched from red to blue, and the lighting of the signal lamp for the vehicle is switched from blue to red.

  Further, the traffic information processing unit 13 may be configured not to perform a determination process as to whether or not the mobile terminal 121 exists in the vehicle.

  Further, the information processing apparatus 102 may be included in the telecommunications carrier server 101, may be included in the signal management apparatus 103, or included in an apparatus other than the telecommunications carrier server 101 and the signal management apparatus 103. Also good.

<Operation flow>
Each device in the information processing system 201 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step in the following flowchart from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

  FIG. 6 is a flowchart showing an example of the operation flow of the information processing apparatus in the information processing system according to the embodiment of the present invention.

  With reference to FIG. 2 and FIG. 6, the acquisition part 11 receives the target information transmitted from the communication carrier server 101 first, and preserve | saves the received target information in the memory | storage part 14 (step S11).

  Next, the position specifying unit 12 extracts a plurality of pieces of target information including the same terminal ID from among a plurality of pieces of target information stored in the storage unit 14. Then, the position specifying unit 12 uses at least one of the reception intensity, reception time, and arrival direction indicated by the plurality of extracted pieces of target information to indicate terminal position information indicating the position of the mobile terminal 121 corresponding to the terminal ID. Is calculated. And the position specific | specification part 12 preserve | saves the set X of the calculated terminal position information and object information in the memory | storage part 14 (step S12).

  Next, the traffic information processing unit 13 extracts a plurality of sets X having the same terminal ID included in the target information from among the plurality of sets X stored in the storage unit 14. And the traffic information processing part 13 calculates the movement speed and movement locus | trajectory for every predetermined time of the mobile terminal 121 corresponding to the said terminal ID based on each object information and terminal position information of the some set X extracted. (Step S13).

  Next, the traffic information processing unit 13 determines, for example, whether or not the mobile terminal 121 exists in the vehicle by using at least one of the calculated movement speed and movement trajectory for each predetermined time (step) S14).

  Next, the traffic information processing unit 13 calculates, for example, the link travel time c for a predetermined section based on the moving speed and the moving trajectory for each predetermined time of the mobile terminal 121 determined to be present in the vehicle (step S15). .

  Next, the traffic information processing unit 13 calculates the traffic jam length Y in a predetermined section based on, for example, the movement speed and movement trajectory for each predetermined time related to the mobile terminal 121 determined to be present in the vehicle (step S16). . The traffic information processing unit 13 may calculate the link travel time c (step S15) after calculating the traffic jam length Y.

  Next, the traffic information processing unit 13 manages the traffic information including at least one of travel time information indicating the calculated link travel time c and traffic information indicating the calculated traffic jam length Y via the transmission unit 15. It transmits to the apparatus 103 (step S17).

  The traffic information processing unit 13 calculates the movement speed and movement locus (step S13), determines whether the mobile terminal 121 is present in the vehicle (step S14), and calculates the link travel time c (step S15). The traffic information including the terminal location information calculated in step S12 may be transmitted to the signal controller or the like via the transmission unit 15 without calculating the traffic jam length Y (step S16).

  By the way, as described in Patent Document 1, when collecting traffic information obtained by a sensor provided on a road, it is necessary to install a large number of sensors, and many sensors are installed, maintained, and maintained. Cost is required.

  Therefore, for example, information obtained from an optical beacon installed by a prefectural police, information from a vehicle equipped with an optical beacon onboard device, or traffic obtained from a communication signal between vehicles equipped with an ITS (Intelligent Transport Systems) onboard device. A method for collecting information and controlling traffic signals can be considered. However, in such a method, it is required that the optical beacon vehicle-mounted device or the ITS vehicle-mounted device is mounted on many vehicles.

  Another possible method is to control traffic signals by collecting traffic information obtained by using telematics services provided by private companies. However, in such a method, if the penetration rate of the telematics service is low, traffic information cannot be collected sufficiently.

  On the other hand, in the information processing apparatus 102 according to the embodiment of the present invention, the acquisition unit 11 acquires predetermined information via the base station 151 related to the mobile terminal 121 for the plurality of mobile terminals 121. The predetermined information is at least one of the terminal ID of the mobile terminal 121, the base station ID of the base station 151, and the reception power, reception time, and arrival direction of the communication signal transmitted from the base station 151 at the mobile terminal 121. Including one. Further, the acquisition unit 11 further acquires base station position information that is position information of the base station 151 corresponding to the base station ID included in the predetermined information. The location specifying unit 12 calculates terminal location information that is location information of the mobile terminal 121 based on the predetermined information and base station location information acquired by the acquisition unit 11. The traffic information processing unit 13 performs a process of transmitting traffic information including the terminal location information calculated by the location specifying unit 12 to the signal management device 103.

  With such a configuration, it is possible to grasp the traffic situation based on the predetermined information related to the mobile terminal 121 regardless of the installation of many sensors or the spread of the optical beacon onboard device or the ITS onboard device. Therefore, a mechanism for grasping the traffic situation can be easily constructed.

  In the information processing apparatus 102 according to the embodiment of the present invention, the storage unit 14 stores road map data. The traffic information processing unit 13 performs association processing for associating road map data stored in the storage unit 14 with terminal position information.

  With such a configuration, since the positional relationship between the mobile terminal 121 and the road can be clarified, the traffic situation can be grasped more accurately.

  In the information processing apparatus 102 according to the embodiment of the present invention, the traffic information processing unit 13 causes the vehicle to travel on the traffic jam information and the predetermined section of the road related to the terminal position information based on the result of the association processing. The travel time information indicating the link travel time c, which is the time required for the travel, is created, and the traffic information further including the created information is transmitted.

  With such a configuration, in a device used for traffic control, it is possible to grasp a specific numerical value representing a road congestion situation as a traffic situation.

  Further, in the information processing apparatus 102 according to the embodiment of the present invention, the traffic information processing unit 13 determines whether or not the corresponding mobile terminal 121 exists in the vehicle based on the terminal position information, and the determination result The process which transmits the traffic information which further contains the information based on is performed.

  With such a configuration, for example, traffic information can be created by selectively using the terminal position information of the mobile terminal 121 in the vehicle, which is related to road congestion, so that the traffic situation can be grasped more accurately. be able to.

  In the information processing method according to the embodiment of the present invention, first, the acquisition unit 11 in the information processing apparatus 102 acquires predetermined information via the base station 151 related to the mobile terminal 121 for the plurality of mobile terminals 121. Next, the position specifying unit 12 in the information processing apparatus 102 adds the predetermined information acquired by the acquiring unit 11 and the base station position information that is the position information of the base station 151 corresponding to the base station ID included in the predetermined information. Based on this, terminal location information that is location information of the mobile terminal 121 is calculated. Next, the traffic information processing unit 13 in the information processing apparatus 102 performs a process of transmitting the traffic information including the terminal position information calculated by the position specifying unit 12 to the signal management apparatus 103. The predetermined information includes at least one of the terminal ID of the mobile terminal 121, the base station ID of the base station 151, and the received power, reception time, and arrival direction of the communication signal transmitted from the base station 151 at the mobile terminal 121. Or one.

  By such a method, it is possible to grasp the traffic situation based on the predetermined information related to the mobile terminal 121 regardless of the installation of many sensors or the spread of the optical beacon onboard device or the ITS onboard device. Therefore, a mechanism for grasping the traffic situation can be easily constructed.

  Note that some or all of the functions of the information processing apparatus 102 according to the embodiment of the present invention may be provided by cloud computing. That is, the information processing apparatus 102 according to the embodiment of the present invention may be configured by a plurality of cloud operator servers and the like.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The above description includes the following features.

[Appendix 1]
An acquisition unit that acquires predetermined information via a base station related to a mobile terminal for the plurality of mobile terminals,
The predetermined information includes at least one of identification information of the mobile terminal, identification information of the base station, and reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal. Including
The acquisition unit further acquires base station position information that is position information of the base station corresponding to identification information of the base station included in the predetermined information,
further,
Based on the predetermined information acquired by the acquisition unit and the base station location information, a location specifying unit that calculates terminal location information that is location information of the mobile terminal;
A traffic information processing unit that performs processing for transmitting traffic information including the terminal location information calculated by the location specifying unit to a device used for traffic control;
Part of the predetermined information is included in control information transmitted from the mobile terminal to the base station using a control channel,
The control information includes management of the location of the mobile terminal when no operation is performed on the mobile terminal, control related to handover of the mobile terminal, control related to outgoing from the mobile terminal or incoming to the mobile terminal, and Information used for at least one of control of transmission power of communication signals from the base station and the mobile terminal,
The traffic information processing unit calculates a moving speed and a moving locus of the mobile terminal based on the terminal position information calculated by the position specifying unit and the base station position information, and the calculated moving speed and the An information processing apparatus that calculates at least one of a length of a traffic jam portion in a predetermined section of a road and a travel time, which is a time required for a vehicle to travel on the predetermined section, based on a movement locus.

DESCRIPTION OF SYMBOLS 11 Acquisition part 12 Position specification part 13 Traffic information processing part 14 Storage part 15 Transmission part 101 Communication carrier server 102 Information processing apparatus 103 Signal management apparatus 121 Terminal apparatus 151 Base station

Claims (6)

An acquisition unit that acquires predetermined information via a base station related to a mobile terminal for the plurality of mobile terminals,
The predetermined information includes at least one of identification information of the mobile terminal, identification information of the base station, and reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal. Including
The acquisition unit further acquires base station position information that is position information of the base station corresponding to identification information of the base station included in the predetermined information,
further,
Based on the predetermined information acquired by the acquisition unit and the base station location information, a location specifying unit that calculates terminal location information that is location information of the mobile terminal;
An information processing apparatus comprising: a traffic information processing unit that performs a process of transmitting traffic information including the terminal position information calculated by the position specifying unit to a device used for traffic control. The information processing apparatus further includes:
A storage unit for storing road map data;
The information processing apparatus according to claim 1, wherein the traffic information processing unit performs association processing that associates the road map data with the terminal position information.   The traffic information processing unit, based on the result of the association processing, traffic information on the road related to the terminal position information and travel time information indicating a travel time that is a time required for the vehicle to travel on a predetermined section. The information processing apparatus according to claim 2, wherein at least one of the information is created, and the traffic information including the created information is transmitted.   The traffic information processing unit determines whether or not the corresponding mobile terminal exists in a vehicle based on the terminal position information, and performs processing for transmitting the traffic information further including information based on the determination result The information processing apparatus according to any one of claims 1 to 3. An information processing method in an information processing apparatus,
Obtaining predetermined information via a base station for a mobile terminal for a plurality of the mobile terminals;
Based on the acquired predetermined information and base station position information that is position information of the base station corresponding to identification information of the base station included in the predetermined information, terminal position information that is position information of the mobile terminal is obtained. A calculating step;
Processing to transmit the traffic information including the calculated terminal location information to a device used for traffic control, and
The predetermined information includes at least one of identification information of the mobile terminal, identification information of the base station, and reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal. Information processing method. An information processing program used in an information processing apparatus,
Computer
An acquisition unit for acquiring predetermined information via a base station related to a mobile terminal for the plurality of mobile terminals,
As a program to function as
The predetermined information includes at least one of identification information of the mobile terminal, identification information of the base station, and reception power, reception time, and arrival direction of the communication signal transmitted from the base station at the mobile terminal. Including
The acquisition unit further acquires base station position information that is position information of the base station corresponding to identification information of the base station included in the predetermined information,
Said computer further
Based on the predetermined information acquired by the acquisition unit and the base station location information, a location specifying unit that calculates terminal location information that is location information of the mobile terminal;
A traffic information processing unit that performs processing for transmitting traffic information including the terminal location information calculated by the location specifying unit to a device used for traffic control;
Information processing program to function as

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