WO2023053265A1 - Collision avoidance system, control method, and program - Google Patents

Collision avoidance system, control method, and program Download PDF

Info

Publication number
WO2023053265A1
WO2023053265A1 PCT/JP2021/035846 JP2021035846W WO2023053265A1 WO 2023053265 A1 WO2023053265 A1 WO 2023053265A1 JP 2021035846 W JP2021035846 W JP 2021035846W WO 2023053265 A1 WO2023053265 A1 WO 2023053265A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
mobile terminal
collision
user
notification
Prior art date
Application number
PCT/JP2021/035846
Other languages
French (fr)
Japanese (ja)
Inventor
亜紀 林
夕貴 横畑
皓平 森
崇洋 秦
和昭 尾花
Original Assignee
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to PCT/JP2021/035846 priority Critical patent/WO2023053265A1/en
Publication of WO2023053265A1 publication Critical patent/WO2023053265A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions

Definitions

  • the present invention relates to collision avoidance system, control method and program technology.
  • Non-Patent Document 1 There are users who use mobile devices such as smartphones and tablets while walking. Regarding this walking smartphone, a technology has been disclosed that uses a decision tree to detect the walking smartphone and determine where it is used (whether it is a dangerous place such as stairs) from the acceleration and the tilt of the smartphone (see Non-Patent Document 1). ).
  • the present invention aims to provide technology capable of avoiding collisions between people and users who operate or browse mobile terminals while walking.
  • One aspect of the present invention is a collision avoidance system comprising a mobile terminal and a management device, comprising: a prediction unit that predicts a collision between a user possessing the mobile terminal and a person; and a notification unit that notifies the user of information for avoiding a collision when a collision with a person is predicted.
  • One aspect of the present invention is a prediction step of predicting a collision between a user possessing a mobile terminal and a person; and a notification step of notifying the user of the information of.
  • One aspect of the present invention is a program for causing a computer to function as the collision avoidance system.
  • FIG. 1 is a system configuration diagram showing a system configuration of a collision avoidance system
  • FIG. It is a functional block diagram showing the functional configuration of the management device. It is a figure which shows the specific example of a position database. It is a functional block diagram showing the functional composition of a portable terminal. It is a figure which shows the specific example of another terminal database.
  • FIG. 4 is a schematic diagram of a user and a bubble viewed from above;
  • FIG. 10 is a sequence diagram showing processing by the management device and the mobile terminal;
  • FIG. 5 is a diagram showing the flow of collision control processing;
  • FIG. 5 is a diagram showing an example of a derived avoidance direction; It is a figure which shows the notification method using "Burunavi”. It is a figure which shows the notification method using vibration.
  • FIG. 1 is a system configuration diagram showing the system configuration of a collision avoidance system 1.
  • the collision avoidance system 1 includes a management device 100 and mobile terminals 200_1 to 200_n (n is an integer equal to or greater than 1).
  • n is an integer equal to or greater than 1).
  • any one of the mobile terminals 200_1 to 200_n will be referred to as a mobile terminal 200 unless otherwise distinguished.
  • the mobile terminal 200 is a portable terminal such as a smart phone, a tablet terminal, or a portable game machine.
  • the network 500 is composed of various networks such as a mobile phone line and Wi-Fi (registered trademark).
  • the term "walking smartphone” means that a person operates or browses a mobile terminal while walking.
  • FIG. 2 is a functional block diagram showing the functional configuration of the management device 100.
  • the management device 100 includes a CPU (Central Processing Unit), a memory, an auxiliary storage device, etc. connected by a bus, and a communication unit 110, a position information storage unit 141, and a control unit 120 by executing a management program.
  • a management program may be recorded on a computer-readable recording medium.
  • Computer-readable recording media include portable media such as flexible disks, magneto-optical disks, ROMs and CD-ROMs, and storage devices such as hard disks incorporated in computer systems.
  • the management program may be transmitted via telecommunication lines.
  • the management program may include parameters used when each functional unit (especially the control unit 120) operates.
  • the memory or auxiliary storage device may also store parameter values set by the administrator in executing the management program.
  • the communication unit 110 is a network interface. Communication unit 110 communicates with mobile terminal 200 via network 500 .
  • the position information storage unit 141 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. Position information storage unit 141 stores a position database indicating position information of mobile terminal 200 .
  • FIG. 3 is a diagram showing a specific example of the position database.
  • the location database consists of IMEI (terminal identification number), phone number and location.
  • the IMEI is a 15-digit number for uniquely identifying the mobile terminal 200.
  • the phone number is the phone number of mobile terminal 200 .
  • the position is indicated by (east longitude, north latitude) and indicates the position of the mobile terminal 200 that was last obtained from the mobile terminal 200 .
  • the location database is updated each time location information is acquired from mobile terminal 200 .
  • Identification information other than the IMEI may be used as the value registered in the location database. That is, any value may be used as long as it is information that can identify the mobile terminal 200 .
  • the control unit 120 in FIG. 2 controls the operation of each unit of the management device 100.
  • FIG. The control unit 120 is implemented by a device including a processor such as a CPU and a RAM, for example.
  • the control unit 120 functions as a location information acquiring unit 121, a location information updating unit 122, a nearby location information extracting unit 123, and a nearby location information providing unit 124 by executing the management program.
  • the location information acquisition unit 121 acquires location information by receiving a location information notification from the mobile terminal 200 and uses it as an input.
  • the location information is information indicating the location of mobile terminal 200 .
  • the location information may be information including latitude and longitude, for example.
  • the location information update unit 122 updates the location database stored in the location information storage unit 141 with the location information acquired by the location information acquisition unit 121 .
  • the near position information extraction unit 123 receives a near position information request from the mobile terminal 200 as an input.
  • the nearby location information request is a signal indicating a request for information on other mobile terminals 200 located within a predetermined range (for example, 30 m square around the mobile terminal) that is in the vicinity of the mobile terminal 200 that made the request.
  • the nearby location information extraction unit 123 Upon receiving a request for nearby location information, the nearby location information extraction unit 123 extracts information indicating the location of another mobile terminal 200 located near the requesting mobile terminal 200 (hereinafter referred to as “nearby location information”). , is extracted from the position information storage unit 141 .
  • the nearby position information providing unit 124 outputs the nearby position information extracted by the nearby position information extracting unit 123 by transmitting it to the portable terminal 200 that is the source of the nearby position information request.
  • FIG. 4 is a functional block diagram showing the functional configuration of the mobile terminal 200.
  • the mobile terminal 200 includes a CPU, a memory, an auxiliary storage device, and the like connected by a bus, and executes a collision-related program to control the communication unit 210, the other terminal information storage unit 240, the control unit 220, the operation unit 251, and the display unit. 252 , a speaker 253 , a driving mechanism 254 , a GPS (Global Positioning System) receiver 255 , an acceleration sensor 256 , a gyro sensor 257 and a geomagnetic sensor 258 .
  • GPS Global Positioning System
  • All or part of the functions of the communication unit 210, the other terminal information storage unit 240, and the control unit 220 may be implemented using hardware such as ASIC, PLD, and FPGA.
  • the collision-related program may include parameters used when each functional unit (especially control unit 220) operates.
  • the memory or auxiliary storage device may store parameter values set by the user or administrator in executing the collision-related program.
  • the other terminal information storage unit 240 is configured using a storage device such as a semiconductor storage device.
  • the other terminal information storage unit 240 stores an other terminal database indicating the positions of other mobile terminals 200 located near the mobile terminal 200 .
  • the other terminal database is updated based on the near location information acquired from the management device 100 .
  • FIG. 5 is a diagram showing a specific example of the other terminal database.
  • the other terminal database consists of IMEI, phone number, location and distance. Of these, the IMEI, phone number, and location have been described in the location database, so descriptions thereof will be omitted.
  • the distance indicates the distance between the mobile terminal 200 (own device) and another mobile terminal 200 identified by the IMEI of the other terminal database at the time when the nearby location information is acquired from the management device 100 .
  • Identification information other than the IMEI may be used as the value registered in the other terminal database. That is, any value may be used as long as it is information that can identify the mobile terminal 200 .
  • the operation unit 251 is configured by a touch panel, hard keys, etc., and receives user operations.
  • the display unit 252 is composed of a liquid crystal display, organic EL, or the like, and displays various information. Speaker 253 outputs sound.
  • the drive mechanism 254 generates motions that can be felt by the user, such as "running" and vibration, which will be described later.
  • GPS receiver 255 receives GPS signals from GPS satellites. GPS signals are used to obtain the latitude and longitude of mobile terminal 200 .
  • Acceleration sensor 256 detects the acceleration and moving direction of mobile terminal 200 .
  • the gyro sensor 257 detects angles of the yaw axis, pitch axis, and roll axis of the mobile terminal 200 .
  • the yaw axis is an axis perpendicular to the horizontal plane of mobile terminal 200
  • the pitch axis and roll axis are axes parallel to the horizontal plane of mobile terminal 200
  • the roll axis is the axis along the front-rear direction of the mobile terminal 200
  • the pitch axis is the axis along the left-right direction of the mobile terminal 200 .
  • the geomagnetic sensor 258 acquires geomagnetic intensities in the left-right, up-down, and front-rear directions of the mobile terminal 200 .
  • a control unit 220 in FIG. 4 controls the operation of each unit of the mobile terminal 200 .
  • the control unit 220 is implemented by a device including a processor such as a CPU and a RAM, for example.
  • Control unit 220 functions as position information acquisition unit 221, proximity position information acquisition unit 222, prediction unit 223, avoidance direction derivation unit 224, and notification unit 225 by executing a collision-related program.
  • the position information acquisition unit 221 acquires the GPS signal from the GPS receiver 255 and uses it as an input.
  • the location information acquisition unit 221 acquires location information of the mobile terminal 200 (own device) based on the input GPS signal.
  • the acquired position information is transmitted to the management device 100 every predetermined time (for example, 0.5 seconds).
  • the location information acquisition unit 221 generates a location information notification, which is a signal including the latest location information of its own device, and transmits the location information notification to the management device 100 .
  • the proximity position information acquisition unit 222 generates the above-described proximity position information request at a predetermined timing (for example, at predetermined time intervals), and outputs the request by transmitting it to the management device 100 .
  • the nearby location information acquisition unit 222 receives the nearby location information from the management device 100 as response information to the nearby location information request and uses it as an input.
  • the nearby location information acquisition unit 222 updates the information in the other terminal information storage unit 240 based on the input nearby location information.
  • the prediction unit 223 predicts a collision between the user possessing the mobile terminal 200 and another person. A detailed prediction method will be described later.
  • the avoidance direction derivation unit 224 derives a direction to avoid a collision when a collision is predicted. The details of the method of deriving the avoidance direction will be described later.
  • the notification unit 225 notifies the user of the avoidance direction derived by the avoidance direction derivation unit 224 by outputting it via the display unit 252, the speaker 253, and the drive mechanism 254. FIG. In addition, the notification unit 225 notifies the user of a warning when it is predicted that a collision is imminent.
  • Such warnings are, for example, when the distance from the current value to the predicted collision point has become shorter than a predetermined threshold, or when the time from the present to the predicted collision has become shorter than a predetermined threshold. It may be done according to circumstances.
  • the threshold value used to determine such a warning is a value smaller than the threshold value used to determine the avoidance direction notification described above (that is, a value indicating that the distance or time until the collision is shorter).
  • FIG. 6 is a schematic diagram of a user and bubbles viewed from above.
  • circles with radii D1 and D2 are drawn centering on the user. Since the radius of the bubble is D1, the circle of radius D1 shown in FIG. 6 indicates the bubble viewed from above.
  • a circle of radius D2 is used in the prediction.
  • D1 may be 2 m, for example, and D2 may be 4 m, for example.
  • the bubble radii D1 and D2 may be set arbitrarily.
  • the notification can be made at a more appropriate timing according to user settings. Specifically, in the case of a user who feels that the reaction to avoiding is slow, by setting D1 or D2 to be large, the notification will be made early, so that the user can avoid it with time to spare.
  • FIG. 7 is a sequence diagram showing processing by the management device 100 and the mobile terminal 200.
  • the mobile terminal 200 transmits position information to the management device 100 at predetermined time intervals.
  • location information indicating the location of mobile terminal 200 is transmitted to management device 100 as location information notification.
  • the location information updating unit 122 updates the location database as shown in steps S102 and S104.
  • the mobile terminal 200_1 transmits a near location information request to the management device 100 (step S105).
  • the nearby location information extraction unit 123 of the management device 100 extracts nearby location information indicating the location of another mobile terminal 200 located near the mobile terminal 200_1 (step S106).
  • the nearby location information providing unit 124 transmits a nearby location information response, which is a signal including the nearby location information extracted by the nearby location information extracting unit 123, to the portable terminal 200_1 that transmitted the nearby location information request (step S107).
  • the mobile terminal 200_1 that has received the proximity location information response performs collision control processing (step S108).
  • the mobile terminal 200 and the management device 100 repeat the flow from the transmission of the near location information request in step S105 to the collision control process in step S108 at, for example, the same timing as the predetermined time.
  • FIG. 8 is a diagram showing the flow of collision control processing.
  • the prediction unit 223 acquires position information of each mobile terminal 200 from the proximity position information indicated in the received proximity position information response (step S101).
  • the prediction unit 223 acquires the distance d from each mobile terminal 200 from the acquired position information and the position information of the own device acquired by the position information acquisition unit 221 (step S102).
  • the prediction unit 223 determines whether there is a mobile terminal 200 (hereinafter referred to as "approaching terminal") approaching its own device (step S103). In step S103, the prediction unit 223 compares the acquired distance d with the distance stored in the other terminal database, and if the acquired distance d is shorter than the distance stored in the other terminal database, , it is determined that the mobile terminal 200 is approaching itself.
  • step S103 If there is no approaching terminal (step S103: NO), the prediction unit 223 proceeds to step S107. If there is a nearby terminal (step S103: YES), the prediction unit 223 determines whether there is a portable terminal 200 with a distance d greater than D1 and less than or equal to D2 among the nearby terminals. (step S104). In other words, it is determined whether or not there is a mobile terminal 200 that is not in contact with or intersects with the bubble but has the possibility of collision.
  • the avoidance direction derivation unit 224 derives an avoidance direction (step S105). An example of derivation of the avoidance direction will be described later.
  • the notification unit 225 notifies the user of the device of the avoidance direction derived by the avoidance direction derivation unit 224 (step S106).
  • the near location information acquisition unit 222 updates the distance of each mobile terminal 200 in the other terminal database to the distance d acquired in step S102 (step S107), and ends the process.
  • step S104 if there is no mobile terminal 200 with distance d greater than D1 and less than or equal to D2 among the nearby terminals (step S104: NO), prediction unit 223 determines that distance d is D1 It is determined whether or not there is the following portable terminal 200 (step S108).
  • step S108 If there is no portable terminal 200 with a distance d of D1 or less (step S108: NO), the process proceeds to step S107 described above. If there is a mobile terminal 200 whose distance d is D1 or less (step S108: YES), it means that another mobile terminal 200 is in contact with or crosses the bubble. In this case, since the collision is imminent, the notification unit 225 notifies the user of the own device of a warning (step S109), and proceeds to step S107 described above.
  • the notification unit 225 of the mobile terminal 200 notifies the collision avoidance direction or warning at a predetermined timing.
  • the predetermined timing is the timing when the distance d is greater than D1 and less than or equal to D2 and there is a nearby terminal, or the timing when the distance d is less than or equal to D1 and there is a nearby terminal. In this way, by notifying at a predetermined timing based on the bubble, it is possible to perform appropriate notification.
  • FIG. 9 is a diagram showing an example of the avoidance direction derived by the avoidance direction derivation unit 224.
  • FIG. User R and user Q are shown in FIG. User R is walking and using a smartphone.
  • a point P indicates a collision point at which the vehicle will collide if it is not avoided.
  • Avoidance directions A and B indicate two examples of avoidance directions derived by the avoidance direction derivation unit 224 . Note that the traveling directions and walking speeds of the users R and Q are derived by calculation from nearby position information acquired from the management device 100 a plurality of times.
  • the avoidance direction A indicates the avoidance direction that the user R avoids in a direction parallel to the walking direction of the user Q. If it is parallel to the traveling direction of user Q and the distance between point P and user R at the present time is greater than D1, the bubbles of user R and user Q will not contact or cross each other.
  • the avoidance direction B is a direction that intersects the traveling direction of the user Q, and is derived when the acceleration and walking speed of the user R detected by the acceleration sensor 256 are sufficiently faster than the walking speed of the user Q. is the direction.
  • FIGS. 10, 11, and 12 show notification examples in the case of notifying the avoidance direction A (diagonally forward right of the user) in FIG.
  • FIG. 10 is a diagram showing a notification method using force sensation presentation technology.
  • the force sensation presentation technology may be implemented using, for example, a technology called "Burunavi".
  • "Burunavi” is a force sensation presentation method that utilizes the illusion of traction force.
  • Vuru-Navi uses a mechanism that generates asymmetrical acceleration with large differences in forward and return acceleration, and periodically generates a short, strong force in one direction and a long, weak force in the other direction. do. By setting this long and weak force to a sub-threshold value, it is possible to give the illusion that a force that is physically generated in two directions is a force in only one direction.
  • Burunavi see, for example, "http://www.kecl.ntt.co.jp/human/burunavi/”.
  • the notification unit 225 controls the operation of the drive mechanism 254 to generate a force that causes the portable terminal 200 to be pulled in the avoidance direction A.
  • the pulling direction of “Burunavi” is determined according to the angle and direction of mobile terminal 200 detected by gyro sensor 257 and geomagnetic sensor 258 .
  • FIG. 11 is a diagram showing a notification method using vibration.
  • the notification unit 225 controls the operation of the driving mechanism 254 to vibrate the end of the portable terminal 200 in the avoidance direction A.
  • FIG. The vibration position is determined according to the angle and direction of mobile terminal 200 detected by gyro sensor 257 and geomagnetic sensor 258 .
  • FIG. 12 is a diagram showing a notification method using the display unit 252 of the mobile terminal 200.
  • FIG. Since a user who uses a smartphone while walking often looks at the screen, a notification method of displaying the avoidance direction screen 301 using the display unit 252 is also effective. In this case, since the avoidance direction screen 301 hides part of the screen, the notification method using the display unit 252 may be used when the application is not executed such that the user always sees the entire screen.
  • FIG. 13 is a diagram showing a notification method using the speaker 253 of the mobile terminal 200.
  • the avoidance direction may be notified by outputting a sound.
  • a notification method using voice may be used when there is not much noise from crowds, automobiles, etc., or when the user is wearing earphones.
  • FIG. 14 is a diagram showing a warning notification method using force sensation presentation technology such as "VuruNavi".
  • the notification unit 225 may use force sensation presentation technology to generate a force as if the portable terminal 200 were being pulled in the direction opposite to the traveling direction.
  • the pulling direction is determined according to the angle and direction of mobile terminal 200 detected by gyro sensor 257 and geomagnetic sensor 258 .
  • FIG. 15 is a diagram showing a warning notification method using vibration.
  • the notification unit 225 controls the operation of the driving mechanism 254 to vibrate the mobile terminal 200 as a whole. Since the mobile terminal 200 as a whole vibrates, the user can easily recognize the vibration, so the mobile terminal 200 can allow the user to stop using the smartphone while walking or check the front.
  • FIG. 16 is a diagram showing a warning notification method using the display unit 252 of the mobile terminal 200.
  • FIG. A notification method using the display unit 252 is also effective because the user who is using the smartphone while walking is looking at the screen. The difference from the avoidance direction notification is that the warning screen 302 occupies a wider area. For example, the warning screen 302 may be displayed on the entire screen. Since the user can easily recognize the warning by displaying it on the entire screen, the mobile terminal 200 can cause the user to stop using the smartphone while walking or to check ahead.
  • FIG. 17 is a diagram showing a notification method using the speaker 253.
  • FIG. A difference from notification of the avoidance direction is that an alarm sound (“beep beep” in FIG. 17) is output in the same manner as an emergency earthquake bulletin. Since the user can easily recognize the warning by outputting the warning sound, the portable terminal 200 can cause the user to stop using the smartphone while walking or to check ahead.
  • an alarm sound (“beep beep” in FIG. 17) is output in the same manner as an emergency earthquake bulletin. Since the user can easily recognize the warning by outputting the warning sound, the portable terminal 200 can cause the user to stop using the smartphone while walking or to check ahead.
  • the avoidance is performed so as to avoid these people. You can give directions. It should be noted that the user who is using the smartphone while walking and the person who is staggering can be identified by known technology using various sensors of the mobile terminal. In addition, children and elderly people can be specified by having their ages registered in advance by the user.
  • the position is detected using GPS, and the position information of each mobile terminal 200 is collected by the management device 100, so that the mobile terminal 200 notifies the avoidance direction and the like.
  • the avoidance direction or the like may be notified by grasping the state of the surroundings from an image captured by a camera provided in the mobile terminal 200 .
  • an avoidance direction may be notified to avoid these people.
  • users who use smartphones while walking generally slow down their walking speed. Therefore, the user may be notified to increase the walking speed.
  • some mobile terminals have navigation system functions.
  • a direction that is not far from the destination may be notified as an avoidance direction.
  • the mobile terminal 200 notifies the avoidance direction of the avoidance directions A and B, whichever has the smaller angle between the line connecting the user R and the destination and the avoidance direction. You may By doing so, the portable terminal 200 can avoid the user so as not to wastefully detour.
  • users who are not using smartphones while walking are approaching users who are using smartphones while walking. may notify you.
  • the avoidance direction derivation unit 224 may derive an avoidance direction so as to avoid steps and objects based on data indicating road steps and objects installed on the road.
  • the collision avoidance system 1 in the first embodiment described above has a configuration in which the mobile terminal 200 includes the prediction unit and the avoidance direction derivation unit
  • the management device 100 may be configured to include the prediction unit and the avoidance direction derivation unit.
  • FIG. 18 is a diagram showing a configuration example in which the management device 100 includes a prediction unit and an avoidance direction derivation unit.
  • the management device 100 has a configuration obtained by removing the nearby position information providing unit 124 from the configuration described with reference to FIG.
  • the prediction unit 723 and the avoidance direction derivation unit 724 acquire the proximity position information extracted by the proximity position information extraction unit 123 and the position information of each mobile terminal 200 and use them as inputs.
  • the prediction unit 723 and the avoidance direction derivation unit 724 perform the processing shown in FIG. It is determined whether or not to notify the The derived avoidance direction and warning are output by the warning avoidance direction providing unit 726 transmitting them to the corresponding mobile terminals 200 .
  • FIG. 19 is a diagram showing a configuration example of the mobile terminal 200 when the management device 100 includes a prediction unit and an avoidance direction derivation unit.
  • Mobile terminal 200 includes warning avoidance direction acquisition section 727 except for position information acquisition section 222, prediction section 223, and warning rotation direction derivation section 224 from the configuration shown in FIG.
  • the warning avoidance direction obtaining unit 727 obtains information about the avoidance direction or the warning by receiving information about the avoidance direction or the warning from the management device 100 .
  • the notification unit 225 notifies the avoidance direction or the warning acquired by the warning avoidance direction acquisition unit 727 . Thereby, the mobile terminal 200 can notify the user of information for avoiding collision.
  • FIG. 20 is a system configuration diagram showing the system configuration of the collision avoidance system 1001.
  • the collision avoidance system 1001 includes a management device 1100, an operation information providing device 1600, and mobile terminals 1200_1 to 1200_n (n is an integer equal to or greater than 1).
  • n is an integer equal to or greater than 1 1).
  • any one of the mobile terminals 1200_1 to 1200_n will be referred to as a mobile terminal 1200 unless otherwise distinguished.
  • a mobile terminal 1200 is, for example, a smartphone or a tablet terminal.
  • a network 1500 is composed of various networks such as a mobile phone line and Wi-Fi.
  • the operation information providing device 1600 notifies the management device 1100 that the train is entering the platform at each platform of each station as a train entry notification.
  • the train entry notification includes the name of the station where the train arrives and platform identification information indicating the platform. By receiving the train entry notification, the management device 1100 can recognize which platform of which station the train will enter.
  • FIG. 21 is a functional block diagram showing the functional configuration of the management device 1100.
  • the management device 1100 includes a CPU, a memory, an auxiliary storage device, and the like connected via a bus. It works as a device. All or part of the functions of the communication unit 1110, the location information storage unit 1141, the home information storage unit 1142, and the control unit 1120 may be realized using hardware such as ASIC, PLD, FPGA, or the like.
  • the management program may be recorded on a computer-readable recording medium. Computer-readable recording media include portable media such as flexible disks, magneto-optical disks, ROMs and CD-ROMs, and storage devices such as hard disks incorporated in computer systems.
  • the management program may be transmitted via telecommunication lines.
  • the management program may include parameters used when each functional unit (especially the control unit 1120) operates.
  • the memory or auxiliary storage device may also store parameter values set by the administrator in executing the management program.
  • a communication unit 1110 is a network interface. Communication unit 1110 communicates with operation information providing device 1600 and mobile terminal 1200 via network 500 .
  • the position information storage unit 1141 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. Position information storage unit 1141 stores a position database indicating position information of mobile terminal 1200 .
  • FIG. 22 is a diagram showing a specific example of the position database.
  • the location database consists of IMEI (terminal identification number), phone number, station name, and platform.
  • the IMEI and phone number are as explained in the first embodiment.
  • the station name is the name of the station where the mobile terminal 1200 is located.
  • the platform is the platform of the station where the mobile terminal 1200 is located.
  • the location database is updated each time location information is obtained from mobile terminal 1200 .
  • the home information storage unit 1142 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device.
  • Platform information storage unit 1142 stores a platform database for specifying stations and platforms.
  • FIG. 23 is a diagram showing a specific example of the home database.
  • the home database consists of latitude ranges, longitude ranges, station names, and platforms.
  • the latitude range indicates the latitude range where the station platform is located.
  • the longitude range indicates the range of longitude in which the platform of the station is located.
  • the station name is the name of a station having a platform located in the area indicated by the latitude range and longitude range.
  • a home is a home located in the area indicated by the latitude range and longitude range. If the latitude and longitude obtained from mobile terminal 1200 are included in both the latitude range and the longitude range, the corresponding station name and platform are extracted. For example, when the latitude of the mobile terminal 1200 is between a1 and a2 and the longitude is between b1 and b2, it indicates that the mobile terminal 1200 is located on Platform 1 of a station named STA.
  • a control unit 1120 in FIG. 21 controls the operation of each unit of the management device 1100 .
  • the control unit 1120 is implemented by a device including a processor such as a CPU and a RAM, for example.
  • Control unit 1120 functions as position information acquisition unit 1121, position information update unit 1122, platform information extraction unit 1123, and train arrival information provision unit 1124 by executing the management program.
  • the train arrival information providing unit 1124 is an example of the prediction unit in the second embodiment.
  • the location information acquisition unit 1121 acquires location information by receiving a location information notification from the mobile terminal 1200 and uses it as an input.
  • Location information update unit 1122 extracts the station name and platform where mobile terminal 1200 is located based on the location information acquired by location information acquisition unit 1121, and updates the location database stored in location information storage unit 1141. .
  • the home information extracting unit 1123 receives the notification of entering the line from the operation information providing device 1600 and uses it as an input.
  • the platform information extracting unit 1123 extracts the portable terminal 1200 located at the platform when the train entry notification is input, that is, when the train enters the platform.
  • the train entry information providing unit 1124 predicts a collision between the user of the portable terminal 1200 extracted by the platform information extracting unit 1123 and the train.
  • the train entry information providing unit 1124 includes information such as prediction results, avoidance directions, and warnings for the mobile terminals 1200 of users who are predicted to collide with a train among the mobile terminals 1200 located on the platform where the train enters. Output by transmitting train arrival information.
  • FIG. 24 is a functional block diagram showing the functional configuration of the mobile terminal 1200.
  • Portable terminal 1200 includes a CPU, a memory, an auxiliary storage device, and the like connected by a bus, and executes a collision-related program to control communication unit 1210, control unit 1220, operation unit 1251, display unit 1252, speaker 1253, and drive mechanism. 1254 , GPS receiver 1255 , acceleration sensor 1256 , gyro sensor 1257 and geomagnetic sensor 1258 . All or part of each function of the communication unit 1210 and the control unit 1220 may be realized using hardware such as ASIC, PLD, FPGA, or the like.
  • the collision-related program may include parameters used when each functional unit (especially control unit 1220) operates.
  • the memory or auxiliary storage device may store parameter values set by the user or administrator in executing the collision-related program.
  • the operation unit 1251, display unit 1252, speaker 1253, driving mechanism 1254, GPS receiver 1255, acceleration sensor 1256, gyro sensor 1257, and geomagnetic sensor 1258 are as described in the first embodiment.
  • a control unit 1220 in FIG. 24 controls the operation of each unit of the mobile terminal 1200 .
  • the control unit 1220 is implemented by a device including a processor such as a CPU and a RAM, for example.
  • Control unit 1220 functions as position information acquisition unit 1221 and notification unit 1225 by executing a collision-related program.
  • the position information acquisition unit 1221 acquires the GPS signal from the GPS receiver 1255 and uses it as an input. Location information acquisition unit 1221 acquires location information of mobile terminal 1200 (own device) based on the input GPS signal. The acquired position information is transmitted to the management device 1100 every predetermined time (for example, 0.5 seconds). For example, the location information acquisition unit 1221 generates a location information notification, which is a signal including the latest location information of its own device, and transmits it to the management device 1100 . When receiving train arrival information from the management device 1100, the notification unit 1225 outputs by notifying the user of the own device of information regarding a warning or the like. The notification unit 1225 uses the display unit 1252, the speaker 1253, or the drive mechanism 1254 to notify the user of the device itself.
  • FIG. 25 is a sequence diagram showing processing by the management device 1100, the operation information providing device 1600, and the mobile terminal 1200.
  • mobile terminal 1200 transmits location information to management device 1100 at predetermined time intervals.
  • the location information of mobile terminal 1200 is transmitted to management device 1100 as a location information notification.
  • the location information acquisition unit 1121 of the management device 1100 acquires the location information by receiving the location information notification
  • the location information update unit 1122 updates the location database as shown in steps S202 and S204.
  • the operation information providing device 1600 transmits an entry notification to the management device 1100 (step S205).
  • the platform information extraction unit 1123 of the management device 1100 extracts the station name indicated in the incoming line notification and the portable terminal 200 located on the platform (step S206). In the case of FIG. 25, it is assumed that the mobile terminal 200_1 is located.
  • the train arrival information providing unit 1124 provides the mobile terminal 1200_1 with train arrival information (step S207).
  • the mobile terminal 1200_1 that has received the train arrival information notifies the user of the mobile terminal 1200_1 of a warning (step S208).
  • a warning notification method is performed in the same manner as in FIGS.
  • the notification unit 1225 of the mobile terminal 1200 notifies a warning at a predetermined timing.
  • the predetermined timing is the train entry timing. Note that the train entry timing does not necessarily have to be the moment when the train enters the platform, but before a predetermined time (for example, 5 seconds, 10 seconds, 30 seconds, 1 minute, etc.) ). By doing so, a collision between the user and the train can be avoided.
  • the present invention can be applied to systems that can improve the safety of users of mobile terminals.
  • Management device 1110... Communication unit, 1120... Control unit, 1121... Position information acquisition unit, 1122... Position information update unit , 1123... Platform information extraction unit 1124... Train entry information providing unit 1141... Position information storage unit 1142... Home information storage unit 1200, 1200_1, 1200_n... Portable terminal 1210... Communication unit 1220... Control unit 1221 Position information acquisition unit 1225 Notification unit 1251 Operation unit 1252 Display unit 1253 Speaker 1254 Drive mechanism 1256 Acceleration sensor 1257 Gyro sensor 1258 Geomagnetic sensor 1600 Operation information provision Device,

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)

Abstract

An embodiment of the present invention relates to a mobile terminal comprising: a prediction unit that predicts a collision between a person and a user in possession of the mobile terminal; and a notification unit that, if a collision between the person and the user has been predicted by the prediction unit, issues a notification of information for avoiding the collision.

Description

衝突回避システム、制御方法およびプログラムCollision avoidance system, control method and program
　本発明は、衝突回避システム、制御方法およびプログラムの技術に関する。 The present invention relates to collision avoidance system, control method and program technology.
　歩きながらスマートフォンやタブレットなどの携帯端末を操作する歩きスマホを行うユーザがいる。この歩きスマホに関して、加速度とスマートフォンの傾きから、決定木を用いて、歩きスマホの検出と使用場所（階段などの危険な場所かどうか）を判別する技術が開示されている（非特許文献１参照）。 There are users who use mobile devices such as smartphones and tablets while walking. Regarding this walking smartphone, a technology has been disclosed that uses a decision tree to detect the walking smartphone and determine where it is used (whether it is a dangerous place such as stairs) from the acceleration and the tilt of the smartphone (see Non-Patent Document 1). ).
　歩きながら携帯端末を操作または閲覧するユーザは、人に衝突する可能性があるという課題があった。 There was a problem that users who operate or browse mobile terminals while walking may collide with people.
　上記事情に鑑み、本発明は、歩きながら携帯端末を操作または閲覧するユーザと人との衝突を回避することができる技術の提供を目的としている。 In view of the above circumstances, the present invention aims to provide technology capable of avoiding collisions between people and users who operate or browse mobile terminals while walking.
　本発明の一態様は、携帯端末と管理装置とを備える衝突回避システムであって、前記携帯端末を所持するユーザと人との衝突を予測する予測部と、前記予測部により、前記ユーザと前記人との衝突が予測された場合に、衝突を回避するための情報を前記ユーザに通知する通知部と、を備えた衝突回避システムである。 One aspect of the present invention is a collision avoidance system comprising a mobile terminal and a management device, comprising: a prediction unit that predicts a collision between a user possessing the mobile terminal and a person; and a notification unit that notifies the user of information for avoiding a collision when a collision with a person is predicted.
　本発明の一態様は、携帯端末を所持するユーザと人との衝突を予測する予測ステップと、前記予測ステップにより、前記ユーザと前記人との衝突が予測された場合に、衝突を回避するための情報を前記ユーザに通知する通知ステップと、を備えた制御方法である。 One aspect of the present invention is a prediction step of predicting a collision between a user possessing a mobile terminal and a person; and a notification step of notifying the user of the information of.
　本発明の一態様は、上記衝突回避システムとしてコンピュータを機能させるためのプログラムである。 One aspect of the present invention is a program for causing a computer to function as the collision avoidance system.
　本発明により、歩きながら携帯端末を操作または閲覧するユーザと人との衝突を回避することができる。 According to the present invention, it is possible to avoid a collision between a person and a user who operates or browses a mobile terminal while walking.
衝突回避システムのシステム構成を表すシステム構成図である。1 is a system configuration diagram showing a system configuration of a collision avoidance system; FIG. 管理装置の機能構成を表す機能ブロック図であるIt is a functional block diagram showing the functional configuration of the management device. 位置データベースの具体例を示す図である。It is a figure which shows the specific example of a position database. 携帯端末の機能構成を表す機能ブロック図である。It is a functional block diagram showing the functional composition of a portable terminal. 他端末データベースの具体例を示す図である。It is a figure which shows the specific example of another terminal database. ユーザとバブルを上から見た模式図である。FIG. 4 is a schematic diagram of a user and a bubble viewed from above; 管理装置と、携帯端末との処理を示すシーケンス図である。FIG. 10 is a sequence diagram showing processing by the management device and the mobile terminal; 衝突制御処理の処理の流れを示す図である。FIG. 5 is a diagram showing the flow of collision control processing; 導出された回避方向の一例を示す図である。FIG. 5 is a diagram showing an example of a derived avoidance direction; 「ぶるなび」を用いた通知方法を示す図である。It is a figure which shows the notification method using "Burunavi". 振動を用いた通知方法を示す図である。It is a figure which shows the notification method using vibration. 表示部を用いた通知方法を示す図である。It is a figure which shows the notification method using a display part. スピーカを用いた通知方法を示す図である。It is a figure which shows the notification method using a speaker. 「ぶるなび」を用いた通知方法を示す図である。It is a figure which shows the notification method using "Burunavi". 振動を用いた通知方法を示す図である。It is a figure which shows the notification method using vibration. 表示部を用いた通知方法を示す図である。It is a figure which shows the notification method using a display part. スピーカを用いた通知方法を示す図である。It is a figure which shows the notification method using a speaker. 管理装置の機能構成を表す機能ブロック図であるIt is a functional block diagram showing the functional configuration of the management device. 携帯端末の機能構成を表す機能ブロック図である。It is a functional block diagram showing the functional composition of a portable terminal. 衝突回避システムのシステム構成を表すシステム構成図である。1 is a system configuration diagram showing a system configuration of a collision avoidance system; FIG. 管理装置の機能構成を表す機能ブロック図である。It is a functional block diagram showing the functional composition of a management device. 位置データベースの具体例を示す図である。It is a figure which shows the specific example of a position database. ホームデータベースの具体例を示す図である。It is a figure which shows the example of a home database. 携帯端末の機能構成を表す機能ブロック図である。It is a functional block diagram showing the functional composition of a portable terminal. 管理装置と、運行情報提供装置と、携帯端末との処理を示すシーケンス図である。It is a sequence diagram which shows the process of a management apparatus, an operation information provision apparatus, and a portable terminal.
　本発明の実施形態について、図面を参照して詳細に説明する。
　図１は、衝突回避システム１のシステム構成を表すシステム構成図である。衝突回避システム１は、管理装置１００、携帯端末２００＿１～２００＿ｎ（ｎは１以上の整数）を備える。以下、携帯端末２００＿１～２００＿ｎのそれぞれを特に区別しない場合には任意の１台を携帯端末２００と表現する。携帯端末２００は、例えばスマートフォン、タブレット端末、または携帯型ゲーム機など、携帯可能な端末である。ネットワーク５００は、携帯電話回線やＷｉ－Ｆｉ（登録商標）など各種ネットワークで構成される。以下の説明において、人が歩きながら携帯端末を操作または閲覧することを「歩きスマホ」と表現する。 Embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a system configuration diagram showing the system configuration of a collision avoidance system 1. As shown in FIG. The collision avoidance system 1 includes a management device 100 and mobile terminals 200_1 to 200_n (n is an integer equal to or greater than 1). Hereinafter, any one of the mobile terminals 200_1 to 200_n will be referred to as a mobile terminal 200 unless otherwise distinguished. The mobile terminal 200 is a portable terminal such as a smart phone, a tablet terminal, or a portable game machine. The network 500 is composed of various networks such as a mobile phone line and Wi-Fi (registered trademark). In the following description, the term "walking smartphone" means that a person operates or browses a mobile terminal while walking.
　図２は、管理装置１００の機能構成を表す機能ブロック図である。管理装置１００は、バスで接続されたＣＰＵ（Central Processing Unit）やメモリや補助記憶装置などを備え、管理プログラムを実行することによって通信部１１０、位置情報記憶部１４１、および制御部１２０を備える装置として機能する。なお、通信部１１０、位置情報記憶部１４１、および制御部１２０の各機能の全て又は一部は、ＡＳＩＣ（Application Specific Integrated Circuit）やＰＬＤ（Programmable Logic Device）やＦＰＧＡ（Field Programmable Gate Array）等のハードウェアを用いて実現されてもよい。管理プログラムは、コンピュータ読み取り可能な記録媒体に記録されてもよい。コンピュータ読み取り可能な記録媒体とは、例えばフレキシブルディスク、光磁気ディスク、ＲＯＭ、ＣＤ－ＲＯＭ等の可搬媒体、コンピュータシステムに内蔵されるハードディスク等の記憶装置である。管理プログラムは、電気通信回線を介して送信されてもよい。管理プログラムには、各機能部（特に制御部１２０）が動作する際に使用されるパラメータが含まれていてもよい。また、メモリや補助記憶装置は、管理プログラムの実行において管理者によって設定されたパラメータの値を記憶してもよい。 FIG. 2 is a functional block diagram showing the functional configuration of the management device 100. As shown in FIG. The management device 100 includes a CPU (Central Processing Unit), a memory, an auxiliary storage device, etc. connected by a bus, and a communication unit 110, a position information storage unit 141, and a control unit 120 by executing a management program. function as Note that all or part of each function of the communication unit 110, the position information storage unit 141, and the control unit 120 is implemented by an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate Array), or the like. It may be implemented using hardware. The management program may be recorded on a computer-readable recording medium. Computer-readable recording media include portable media such as flexible disks, magneto-optical disks, ROMs and CD-ROMs, and storage devices such as hard disks incorporated in computer systems. The management program may be transmitted via telecommunication lines. The management program may include parameters used when each functional unit (especially the control unit 120) operates. The memory or auxiliary storage device may also store parameter values set by the administrator in executing the management program.
　通信部１１０は、ネットワークインタフェースである。通信部１１０はネットワーク５００を介して、携帯端末２００と通信する。 The communication unit 110 is a network interface. Communication unit 110 communicates with mobile terminal 200 via network 500 .
　位置情報記憶部１４１は、磁気ハードディスク装置や半導体記憶装置等の記憶装置を用いて構成される。位置情報記憶部１４１は、携帯端末２００の位置情報を示す位置データベースを記憶する。図３は、位置データベースの具体例を示す図である。位置データベースは、ＩＭＥＩ（端末識別番号）、電話番号、および位置で構成される。 The position information storage unit 141 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. Position information storage unit 141 stores a position database indicating position information of mobile terminal 200 . FIG. 3 is a diagram showing a specific example of the position database. The location database consists of IMEI (terminal identification number), phone number and location.
　ＩＭＥＩは、携帯端末２００を一意に識別するための１５桁の数字である。電話番号は、携帯端末２００の電話番号である。位置は、（東経、北緯）で示され、携帯端末２００から最後に取得された携帯端末２００の位置を示す。位置データベースは、携帯端末２００から位置情報が取得されるたびに更新される。なお、位置データベースに登録される値として、ＩＭＥＩ以外の識別情報が用いられてもよい。すなわち、携帯端末２００を識別可能な情報であればどのような値が用いられてもよい。 The IMEI is a 15-digit number for uniquely identifying the mobile terminal 200. The phone number is the phone number of mobile terminal 200 . The position is indicated by (east longitude, north latitude) and indicates the position of the mobile terminal 200 that was last obtained from the mobile terminal 200 . The location database is updated each time location information is acquired from mobile terminal 200 . Identification information other than the IMEI may be used as the value registered in the location database. That is, any value may be used as long as it is information that can identify the mobile terminal 200 .
　図２における制御部１２０は管理装置１００の各部の動作を制御する。制御部１２０は、例えばＣＰＵ等のプロセッサー、およびＲＡＭを備えた装置により実現される。制御部１２０は、管理プログラムを実行することによって、位置情報取得部１２１、位置情報更新部１２２、近傍位置情報抽出部１２３、および近傍位置情報提供部１２４として機能する。 The control unit 120 in FIG. 2 controls the operation of each unit of the management device 100. FIG. The control unit 120 is implemented by a device including a processor such as a CPU and a RAM, for example. The control unit 120 functions as a location information acquiring unit 121, a location information updating unit 122, a nearby location information extracting unit 123, and a nearby location information providing unit 124 by executing the management program.
　位置情報取得部１２１は、携帯端末２００から位置情報通知を受信することで位置情報を取得し、入力とする。位置情報は、携帯端末２００の位置を示す情報である。位置情報は、例えば緯度と経度とを含む情報であってもよい。位置情報更新部１２２は、位置情報取得部１２１により取得された位置情報で位置情報記憶部１４１に記憶された位置データベースを更新する。近傍位置情報抽出部１２３は、携帯端末２００から近傍位置情報要求を受信することによって、入力とする。近傍位置情報要求は、要求元の携帯端末２００の近傍である所定の範囲内（例えば携帯端末を中心に３０ｍ四方）に位置する他の携帯端末２００に関する情報を要求することを示す信号である。近傍位置情報抽出部１２３は、近傍位置情報要求を受信した場合に、要求元の携帯端末２００の近傍に位置する他の携帯端末２００の位置を示す情報（以下「近傍位置情報」という。）を、位置情報記憶部１４１から抽出する。近傍位置情報提供部１２４は、近傍位置情報要求の送信元である携帯端末２００に対し、近傍位置情報抽出部１２３によって抽出された近傍位置情報を送信することによって、出力する。 The location information acquisition unit 121 acquires location information by receiving a location information notification from the mobile terminal 200 and uses it as an input. The location information is information indicating the location of mobile terminal 200 . The location information may be information including latitude and longitude, for example. The location information update unit 122 updates the location database stored in the location information storage unit 141 with the location information acquired by the location information acquisition unit 121 . The near position information extraction unit 123 receives a near position information request from the mobile terminal 200 as an input. The nearby location information request is a signal indicating a request for information on other mobile terminals 200 located within a predetermined range (for example, 30 m square around the mobile terminal) that is in the vicinity of the mobile terminal 200 that made the request. Upon receiving a request for nearby location information, the nearby location information extraction unit 123 extracts information indicating the location of another mobile terminal 200 located near the requesting mobile terminal 200 (hereinafter referred to as “nearby location information”). , is extracted from the position information storage unit 141 . The nearby position information providing unit 124 outputs the nearby position information extracted by the nearby position information extracting unit 123 by transmitting it to the portable terminal 200 that is the source of the nearby position information request.
　図４は、携帯端末２００の機能構成を表す機能ブロック図である。携帯端末２００は、バスで接続されたＣＰＵやメモリや補助記憶装置などを備え、衝突関連プログラムを実行することによって通信部２１０、他端末情報記憶部２４０、制御部２２０、操作部２５１、表示部２５２、スピーカ２５３、駆動機構２５４、ＧＰＳ（Global Positioning System）受信機２５５、加速度センサ２５６、ジャイロセンサ２５７、および地磁気センサ２５８を備える装置として機能する。なお、通信部２１０、他端末情報記憶部２４０、および制御部２２０の各機能の全て又は一部は、ＡＳＩＣやＰＬＤやＦＰＧＡ等のハードウェアを用いて実現されてもよい。衝突関連プログラムには、各機能部（特に制御部２２０）が動作する際に使用されるパラメータが含まれていてもよい。また、メモリや補助記憶装置は、衝突関連プログラムの実行においてユーザや管理者によって設定されたパラメータの値を記憶してもよい。 FIG. 4 is a functional block diagram showing the functional configuration of the mobile terminal 200. As shown in FIG. The mobile terminal 200 includes a CPU, a memory, an auxiliary storage device, and the like connected by a bus, and executes a collision-related program to control the communication unit 210, the other terminal information storage unit 240, the control unit 220, the operation unit 251, and the display unit. 252 , a speaker 253 , a driving mechanism 254 , a GPS (Global Positioning System) receiver 255 , an acceleration sensor 256 , a gyro sensor 257 and a geomagnetic sensor 258 . All or part of the functions of the communication unit 210, the other terminal information storage unit 240, and the control unit 220 may be implemented using hardware such as ASIC, PLD, and FPGA. The collision-related program may include parameters used when each functional unit (especially control unit 220) operates. In addition, the memory or auxiliary storage device may store parameter values set by the user or administrator in executing the collision-related program.
　他端末情報記憶部２４０は、半導体記憶装置等の記憶装置を用いて構成される。他端末情報記憶部２４０は、携帯端末２００の近傍に位置する他の携帯端末２００の位置などを示す他端末データベースを記憶する。他端末データベースは、管理装置１００から取得した近傍位置情報に基づき更新される。 The other terminal information storage unit 240 is configured using a storage device such as a semiconductor storage device. The other terminal information storage unit 240 stores an other terminal database indicating the positions of other mobile terminals 200 located near the mobile terminal 200 . The other terminal database is updated based on the near location information acquired from the management device 100 .
　図５は、他端末データベースの具体例を示す図である。他端末データベースは、ＩＭＥＩ、電話番号、位置、および距離で構成される。このうち、ＩＭＥＩ、電話番号、および位置は、位置データベースで説明したため説明を省略する。距離は、近傍位置情報を管理装置１００から取得した時点における携帯端末２００（自装置）と、他端末データベースのＩＭＥＩで識別される他の携帯端末２００との距離を示す。なお、他端末データベースに登録される値として、ＩＭＥＩ以外の識別情報が用いられてもよい。すなわち、携帯端末２００を識別可能な情報であればどのような値が用いられてもよい。 FIG. 5 is a diagram showing a specific example of the other terminal database. The other terminal database consists of IMEI, phone number, location and distance. Of these, the IMEI, phone number, and location have been described in the location database, so descriptions thereof will be omitted. The distance indicates the distance between the mobile terminal 200 (own device) and another mobile terminal 200 identified by the IMEI of the other terminal database at the time when the nearby location information is acquired from the management device 100 . Identification information other than the IMEI may be used as the value registered in the other terminal database. That is, any value may be used as long as it is information that can identify the mobile terminal 200 .
　図４において、操作部２５１は、タッチパネルやハードキーなどで構成され、ユーザの操作を受け付ける。表示部２５２は、液晶ディスプレイや、有機ＥＬなどで構成され、各種情報を表示する。スピーカ２５３は、音を出力する。駆動機構２５４は、後述する「ぶるなび」や振動など、ユーザが体感可能な動きを発生させる。ＧＰＳ受信機２５５は、ＧＰＳ衛生からＧＰＳ信号を受信する。ＧＰＳ信号は、携帯端末２００の緯度および経度を取得する際に使用される。加速度センサ２５６は、携帯端末２００の加速度と移動方向を検出する。ジャイロセンサ２５７は、携帯端末２００におけるヨー軸、ピッチ軸、ロール軸の角度を検出する。この場合、ヨー軸は携帯端末２００の水平面に対して垂直な軸であり、ピッチ軸及びロール軸は携帯端末２００の水平面に対して平行な軸である。例えば、ロール軸は携帯端末２００の前後方向に沿った軸であり、ピッチ軸は携帯端末２００の左右方向に沿った軸である。地磁気センサ２５８は、携帯端末２００の左右、上下、前後方向の地磁気強度を取得する。 In FIG. 4, the operation unit 251 is configured by a touch panel, hard keys, etc., and receives user operations. The display unit 252 is composed of a liquid crystal display, organic EL, or the like, and displays various information. Speaker 253 outputs sound. The drive mechanism 254 generates motions that can be felt by the user, such as "running" and vibration, which will be described later. GPS receiver 255 receives GPS signals from GPS satellites. GPS signals are used to obtain the latitude and longitude of mobile terminal 200 . Acceleration sensor 256 detects the acceleration and moving direction of mobile terminal 200 . The gyro sensor 257 detects angles of the yaw axis, pitch axis, and roll axis of the mobile terminal 200 . In this case, the yaw axis is an axis perpendicular to the horizontal plane of mobile terminal 200 , and the pitch axis and roll axis are axes parallel to the horizontal plane of mobile terminal 200 . For example, the roll axis is the axis along the front-rear direction of the mobile terminal 200 , and the pitch axis is the axis along the left-right direction of the mobile terminal 200 . The geomagnetic sensor 258 acquires geomagnetic intensities in the left-right, up-down, and front-rear directions of the mobile terminal 200 .
　図４における制御部２２０は携帯端末２００の各部の動作を制御する。制御部２２０は、例えばＣＰＵ等のプロセッサー、およびＲＡＭを備えた装置により実現される。制御部２２０は、衝突関連プログラムを実行することによって、位置情報取得部２２１、近傍位置情報取得部２２２、予測部２２３、回避方向導出部２２４、および通知部２２５として機能する。 A control unit 220 in FIG. 4 controls the operation of each unit of the mobile terminal 200 . The control unit 220 is implemented by a device including a processor such as a CPU and a RAM, for example. Control unit 220 functions as position information acquisition unit 221, proximity position information acquisition unit 222, prediction unit 223, avoidance direction derivation unit 224, and notification unit 225 by executing a collision-related program.
　位置情報取得部２２１は、ＧＰＳ受信機２５５からＧＰＳ信号を取得し、入力とする。位置情報取得部２２１は、入力されたＧＰＳ信号に基づいて携帯端末２００（自装置）の位置情報を取得する。取得された位置情報は、所定時間（例えば０．５秒）ごとに管理装置１００に送信される。例えば、位置情報取得部２２１は、自装置の最新の位置情報を含む信号である位置情報通知を生成し、管理装置１００に送信する。近傍位置情報取得部２２２は、所定のタイミング（例えば所定の時間間隔）で、上述した近傍位置情報要求を生成して管理装置１００に送信することによって出力する。近傍位置情報取得部２２２は、近傍位置情報要求に対する応答情報として、管理装置１００から近傍位置情報を受信し、入力とする。近傍位置情報取得部２２２は、入力された近傍位置情報に基づいて、他端末情報記憶部２４０の情報を更新する。 The position information acquisition unit 221 acquires the GPS signal from the GPS receiver 255 and uses it as an input. The location information acquisition unit 221 acquires location information of the mobile terminal 200 (own device) based on the input GPS signal. The acquired position information is transmitted to the management device 100 every predetermined time (for example, 0.5 seconds). For example, the location information acquisition unit 221 generates a location information notification, which is a signal including the latest location information of its own device, and transmits the location information notification to the management device 100 . The proximity position information acquisition unit 222 generates the above-described proximity position information request at a predetermined timing (for example, at predetermined time intervals), and outputs the request by transmitting it to the management device 100 . The nearby location information acquisition unit 222 receives the nearby location information from the management device 100 as response information to the nearby location information request and uses it as an input. The nearby location information acquisition unit 222 updates the information in the other terminal information storage unit 240 based on the input nearby location information.
　予測部２２３は、携帯端末２００を所持するユーザと他人との衝突を予測する。詳細な予測方法については後述する。回避方向導出部２２４は、衝突が予測された場合に、衝突を回避する方向を導出する。回避方向の導出方法の詳細については後述する。通知部２２５は、回避方向導出部２２４により導出された回避方向を表示部２５２やスピーカ２５３や駆動機構２５４を介して出力することによって、ユーザに通知する。また、通知部２２５は、衝突が間近に迫っていることが予測された場合に警告をユーザに通知する。このような警告は、例えば現在値から衝突すると予測される地点までの距離が所定の閾値よりも短くなったことや、現在から衝突すると予測されるまでの時間が所定の閾値よりも短くなったことに応じて行われても良い。このような警告の判定に用いられる閾値は、上述した回避方向の通知の判定に用いられる閾値よりも小さい値（即ちより衝突までの距離や時間が短くなっていることを示す値）が用いられてもよい。 The prediction unit 223 predicts a collision between the user possessing the mobile terminal 200 and another person. A detailed prediction method will be described later. The avoidance direction derivation unit 224 derives a direction to avoid a collision when a collision is predicted. The details of the method of deriving the avoidance direction will be described later. The notification unit 225 notifies the user of the avoidance direction derived by the avoidance direction derivation unit 224 by outputting it via the display unit 252, the speaker 253, and the drive mechanism 254. FIG. In addition, the notification unit 225 notifies the user of a warning when it is predicted that a collision is imminent. Such warnings are, for example, when the distance from the current value to the predicted collision point has become shorter than a predetermined threshold, or when the time from the present to the predicted collision has become shorter than a predetermined threshold. It may be done according to circumstances. The threshold value used to determine such a warning is a value smaller than the threshold value used to determine the avoidance direction notification described above (that is, a value indicating that the distance or time until the collision is shorter). may
　次に、衝突等について説明する。本実施形態において、ユーザは携帯端末２００を所持していることを前提としていることから、以下の説明では、ユーザと携帯端末２００とを同一視して説明する。本実施形態では、ユーザを中心とした球体（以下、「バブル」ともいう）を概念的に用いて衝突についての処理を行う。具体的には、ユーザのバブルが他のユーザのバブルと接触または交差しないように制御する。図６は、ユーザとバブルとを上から見た模式図である。図６では、ユーザを中心に半径Ｄ１、Ｄ２の円が描かれている。バブルの半径をＤ１としているので、図６に示される半径をＤ１の円が、上から見たバブルを示している。半径Ｄ２の円は、予測で用いられる。 Next, I will explain collisions, etc. In the present embodiment, since it is assumed that the user possesses the mobile terminal 200, the user and the mobile terminal 200 will be treated as the same in the following description. In this embodiment, a user-centered sphere (hereinafter also referred to as a "bubble") is conceptually used to perform collision processing. Specifically, the user's bubble is controlled so that it does not contact or intersect other user's bubbles. FIG. 6 is a schematic diagram of a user and bubbles viewed from above. In FIG. 6, circles with radii D1 and D2 are drawn centering on the user. Since the radius of the bubble is D1, the circle of radius D1 shown in FIG. 6 indicates the bubble viewed from above. A circle of radius D2 is used in the prediction.
　なお、Ｄ１を例えば２ｍとし、Ｄ２を例えば４ｍとしてもよい。また、バブルの半径Ｄ１やＤ２は任意に設定可能でもよい。この場合、ユーザによる設定によって、より適切なタイミングで通知を行うことができる。具体的に、回避するための反応が遅いと感じるユーザの場合には、Ｄ１またはＤ２を大きめにとることで、早めに通知が行われることから、余裕をもって回避することができる。 Note that D1 may be 2 m, for example, and D2 may be 4 m, for example. In addition, the bubble radii D1 and D2 may be set arbitrarily. In this case, the notification can be made at a more appropriate timing according to user settings. Specifically, in the case of a user who feels that the reaction to avoiding is slow, by setting D1 or D2 to be large, the notification will be made early, so that the user can avoid it with time to spare.
　図７は、管理装置１００と、携帯端末２００との処理を示すシーケンス図である。上述したように、携帯端末２００は、所定時間ごとに管理装置１００に位置情報を送信する。ステップＳ１０１、１０３に示されるように、携帯端末２００の位置を示す位置情報は、位置情報通知として管理装置１００に送信される。管理装置１００の位置情報取得部１２１が位置情報通知を受信することで携帯端末２００の位置情報を取得すると、ステップＳ１０２、１０４に示されるように、位置情報更新部１２２が位置データベースを更新する。 FIG. 7 is a sequence diagram showing processing by the management device 100 and the mobile terminal 200. As shown in FIG. As described above, the mobile terminal 200 transmits position information to the management device 100 at predetermined time intervals. As shown in steps S101 and 103, location information indicating the location of mobile terminal 200 is transmitted to management device 100 as location information notification. When the location information acquiring unit 121 of the management device 100 acquires the location information of the mobile terminal 200 by receiving the location information notification, the location information updating unit 122 updates the location database as shown in steps S102 and S104.
　携帯端末２００＿１は、近傍位置情報要求を管理装置１００に送信する（ステップＳ１０５）。携帯端末２００＿１から近傍位置情報要求を受信した管理装置１００の近傍位置情報抽出部１２３は、携帯端末２００＿１の近傍に位置する他の携帯端末２００の位置を示す近傍位置情報を抽出する（ステップＳ１０６）。近傍位置情報提供部１２４は、近傍位置情報要求を送信した携帯端末２００＿１に、近傍位置情報抽出部１２３により抽出された近傍位置情報を含む信号である近傍位置情報応答を送信する（ステップＳ１０７）。近傍位置情報応答を受信した携帯端末２００＿１は、衝突制御処理を行う（ステップＳ１０８）。 The mobile terminal 200_1 transmits a near location information request to the management device 100 (step S105). Upon receiving the nearby location information request from the mobile terminal 200_1, the nearby location information extraction unit 123 of the management device 100 extracts nearby location information indicating the location of another mobile terminal 200 located near the mobile terminal 200_1 (step S106). . The nearby location information providing unit 124 transmits a nearby location information response, which is a signal including the nearby location information extracted by the nearby location information extracting unit 123, to the portable terminal 200_1 that transmitted the nearby location information request (step S107). The mobile terminal 200_1 that has received the proximity location information response performs collision control processing (step S108).
　携帯端末２００と管理装置１００とは、ステップＳ１０５の近傍位置情報要求の送信から、ステップＳ１０８の衝突制御処理までの流れを、例えば上記所定時間と同程度のタイミングで繰り返し行う。 The mobile terminal 200 and the management device 100 repeat the flow from the transmission of the near location information request in step S105 to the collision control process in step S108 at, for example, the same timing as the predetermined time.
　図８は、衝突制御処理の処理の流れを示す図である。予測部２２３は、受信した近傍位置情報応答に示される近傍位置情報から、各携帯端末２００の位置情報を取得する（ステップＳ１０１）。予測部２２３は、取得した位置情報と、位置情報取得部２２１により取得された自装置の位置情報とから、各携帯端末２００との距離ｄを取得する（ステップＳ１０２）。 FIG. 8 is a diagram showing the flow of collision control processing. The prediction unit 223 acquires position information of each mobile terminal 200 from the proximity position information indicated in the received proximity position information response (step S101). The prediction unit 223 acquires the distance d from each mobile terminal 200 from the acquired position information and the position information of the own device acquired by the position information acquisition unit 221 (step S102).
　予測部２２３は、自装置に近づく携帯端末２００（以下「接近端末」という。）があるか否かを判定する（ステップＳ１０３）。このステップＳ１０３において、予測部２２３は、取得した距離ｄと、他端末データベースに記憶された距離とを比較し、他端末データベースに記憶された距離よりも、取得した距離ｄの方が短い場合に、その携帯端末２００が自装置に近づいていると判定する。 The prediction unit 223 determines whether there is a mobile terminal 200 (hereinafter referred to as "approaching terminal") approaching its own device (step S103). In step S103, the prediction unit 223 compares the acquired distance d with the distance stored in the other terminal database, and if the acquired distance d is shorter than the distance stored in the other terminal database, , it is determined that the mobile terminal 200 is approaching itself.
　接近端末がない場合には（ステップＳ１０３：ＮＯ）、予測部２２３は、ステップＳ１０７に進む。接近端末がある場合には（ステップＳ１０３：ＹＥＳ）、予測部２２３は、接近端末の中で、距離ｄが上述したＤ１より大きく、Ｄ２以下となっている携帯端末２００があるか否かを判定する（ステップＳ１０４）。すなわち、バブルとは接触したり交差したりしていないが、衝突可能性がある携帯端末２００があるか否かが判定される。 If there is no approaching terminal (step S103: NO), the prediction unit 223 proceeds to step S107. If there is a nearby terminal (step S103: YES), the prediction unit 223 determines whether there is a portable terminal 200 with a distance d greater than D1 and less than or equal to D2 among the nearby terminals. (step S104). In other words, it is determined whether or not there is a mobile terminal 200 that is not in contact with or intersects with the bubble but has the possibility of collision.
　接近端末の中で、距離ｄが上述したＤ１より大きく、Ｄ２以下となっている携帯端末２００がある場合には（ステップＳ１０４：ＹＥＳ）、回避方向導出部２２４は、回避方向を導出する（ステップＳ１０５）。回避方向の導出例については後述する。 If there is a mobile terminal 200 with a distance d greater than D1 and less than or equal to D2 (step S104: YES), the avoidance direction derivation unit 224 derives an avoidance direction (step S105). An example of derivation of the avoidance direction will be described later.
　通知部２２５は、回避方向導出部２２４により導出された回避方向を自装置のユーザに通知する（ステップＳ１０６）。近傍位置情報取得部２２２は、他端末データベースの各携帯端末２００の距離を、ステップＳ１０２において取得された距離ｄに更新して（ステップＳ１０７）、処理を終了する。 The notification unit 225 notifies the user of the device of the avoidance direction derived by the avoidance direction derivation unit 224 (step S106). The near location information acquisition unit 222 updates the distance of each mobile terminal 200 in the other terminal database to the distance d acquired in step S102 (step S107), and ends the process.
　上記ステップＳ１０４において、接近端末の中で、距離ｄが上述したＤ１より大きく、Ｄ２以下となっている携帯端末２００がない場合には（ステップＳ１０４：ＮＯ）、予測部２２３は、距離ｄがＤ１以下の携帯端末２００があるか否かを判定する（ステップＳ１０８）。 In step S104 above, if there is no mobile terminal 200 with distance d greater than D1 and less than or equal to D2 among the nearby terminals (step S104: NO), prediction unit 223 determines that distance d is D1 It is determined whether or not there is the following portable terminal 200 (step S108).
　距離ｄがＤ１以下の携帯端末２００がない場合には（ステップＳ１０８：ＮＯ）、上述したステップＳ１０７に進む。距離ｄがＤ１以下の携帯端末２００がある場合には（ステップＳ１０８：ＹＥＳ）、他の携帯端末２００とバブルが接触または交差していることとなる。この場合、衝突間近であることから、通知部２２５は、自装置のユーザに警告を通知して（ステップＳ１０９）、上述したステップＳ１０７に進む。 If there is no portable terminal 200 with a distance d of D1 or less (step S108: NO), the process proceeds to step S107 described above. If there is a mobile terminal 200 whose distance d is D1 or less (step S108: YES), it means that another mobile terminal 200 is in contact with or crosses the bubble. In this case, since the collision is imminent, the notification unit 225 notifies the user of the own device of a warning (step S109), and proceeds to step S107 described above.
　以上説明したフローチャートに示されるように、携帯端末２００の通知部２２５は、所定のタイミングで、衝突を回避する方向、または警告を通知する。また、所定のタイミングは、距離ｄがＤ１より大きく、Ｄ２以下となっていて、接近端末があるタイミング、または距離ｄがＤ１以下で接近端末があったタイミングである。このように、バブルにもとづく所定のタイミングで通知することにより、適切に通知を行うことができる。 As shown in the above-described flowchart, the notification unit 225 of the mobile terminal 200 notifies the collision avoidance direction or warning at a predetermined timing. The predetermined timing is the timing when the distance d is greater than D1 and less than or equal to D2 and there is a nearby terminal, or the timing when the distance d is less than or equal to D1 and there is a nearby terminal. In this way, by notifying at a predetermined timing based on the bubble, it is possible to perform appropriate notification.
　図９は、回避方向導出部２２４により導出された回避方向の一例を示す図である。図９には、ユーザＲ、ユーザＱが示されている。ユーザＲが歩きスマホをしている。点Ｐは、回避しない場合に衝突する衝突点を示す。回避方向Ａ、Ｂは、回避方向導出部２２４により導出される２種類の回避方向例を示している。なお、ユーザＲ、Ｑの進行方向と歩行速度は、複数回にわたり管理装置１００から取得された近傍位置情報から計算により導出される。 FIG. 9 is a diagram showing an example of the avoidance direction derived by the avoidance direction derivation unit 224. FIG. User R and user Q are shown in FIG. User R is walking and using a smartphone. A point P indicates a collision point at which the vehicle will collide if it is not avoided. Avoidance directions A and B indicate two examples of avoidance directions derived by the avoidance direction derivation unit 224 . Note that the traveling directions and walking speeds of the users R and Q are derived by calculation from nearby position information acquired from the management device 100 a plurality of times.
　回避方向Ａは、ユーザＱの歩く方向と平行な方向にユーザＲが回避する回避方向を示す。ユーザＱの進行方向と平行で、さらに点Ｐと現時点のユーザＲとの間の距離がＤ１より大きければ、ユーザＲ及びユーザＱのバブル同士が接触または交差することはない。 The avoidance direction A indicates the avoidance direction that the user R avoids in a direction parallel to the walking direction of the user Q. If it is parallel to the traveling direction of user Q and the distance between point P and user R at the present time is greater than D1, the bubbles of user R and user Q will not contact or cross each other.
　回避方向Ｂは、ユーザＱの進行方向と交わる方向であるが、加速度センサ２５６により検出されたユーザＲの加速度や歩行速度がユーザＱの歩行速度と比較して十分速い場合などに導出される回避方向である。 The avoidance direction B is a direction that intersects the traveling direction of the user Q, and is derived when the acceleration and walking speed of the user R detected by the acceleration sensor 256 are sufficiently faster than the walking speed of the user Q. is the direction.
　次に、通知部２２５による回避方向の通知例について説明する。図１０、図１１、図１２に示される通知例は、図９の回避方向Ａ（ユーザの右斜め前方）を通知する場合の通知例を示している。 Next, an example of notification of the avoidance direction by the notification unit 225 will be described. The notification examples shown in FIGS. 10, 11, and 12 show notification examples in the case of notifying the avoidance direction A (diagonally forward right of the user) in FIG.
　図１０は、力感覚提示技術を用いた通知方法を示す図である。力感覚提示技術は、例えば「ぶるなび」と呼ばれる技術を用いて実装されてもよい。「ぶるなび」とは、牽引力錯覚を利用した力感覚提示方法である。具体的に、「ぶるなび」は、行きと帰りの加速度が大きく異なる非対称な加速度を生成する機構を用いて、一方向には短く強い力、もう一方向には長く弱い力を周期的に生成する。この長く弱い力を閾下の値に設定することで、物理的には２方向に生成している力を一方向のみの力のように錯覚させることができる。「ぶるなび」については、例えば"http://www.kecl.ntt.co.jp/human/burunavi/"などを参照されたい。 FIG. 10 is a diagram showing a notification method using force sensation presentation technology. The force sensation presentation technology may be implemented using, for example, a technology called "Burunavi". "Burunavi" is a force sensation presentation method that utilizes the illusion of traction force. Specifically, Vuru-Navi uses a mechanism that generates asymmetrical acceleration with large differences in forward and return acceleration, and periodically generates a short, strong force in one direction and a long, weak force in the other direction. do. By setting this long and weak force to a sub-threshold value, it is possible to give the illusion that a force that is physically generated in two directions is a force in only one direction. For Burunavi, see, for example, "http://www.kecl.ntt.co.jp/human/burunavi/".
　この「ぶるなび」の技術を用いて、通知部２２５は駆動機構２５４の動作を制御し、携帯端末２００が回避方向Ａに牽引されているような力を発生させる。「ぶるなび」の牽引方向は、ジャイロセンサ２５７や地磁気センサ２５８により検出された携帯端末２００の角度や方向に応じて定められる。 Using this "burunavi" technology, the notification unit 225 controls the operation of the drive mechanism 254 to generate a force that causes the portable terminal 200 to be pulled in the avoidance direction A. The pulling direction of “Burunavi” is determined according to the angle and direction of mobile terminal 200 detected by gyro sensor 257 and geomagnetic sensor 258 .
　図１１は、振動を用いた通知方法を示す図である。通知部２２５は、駆動機構２５４の動作を制御し、携帯端末２００における回避方向Ａの方向の端部を振動させる。振動位置は、ジャイロセンサ２５７や地磁気センサ２５８により検出された携帯端末２００の角度や方向に応じて定められる。 FIG. 11 is a diagram showing a notification method using vibration. The notification unit 225 controls the operation of the driving mechanism 254 to vibrate the end of the portable terminal 200 in the avoidance direction A. FIG. The vibration position is determined according to the angle and direction of mobile terminal 200 detected by gyro sensor 257 and geomagnetic sensor 258 .
　図１２は、携帯端末２００の表示部２５２を用いた通知方法を示す図である。歩きスマホをしているユーザは、画面を見ていることが多いことから、表示部２５２を用いて回避方向画面３０１を表示する通知方法も有効である。この場合、回避方向画面３０１が画面の一部を隠すこととなるため、画面全体を常時ユーザが見るようなアプリケーション実行時ではない場合に、表示部２５２を用いた通知方法を用いてもよい。 FIG. 12 is a diagram showing a notification method using the display unit 252 of the mobile terminal 200. FIG. Since a user who uses a smartphone while walking often looks at the screen, a notification method of displaying the avoidance direction screen 301 using the display unit 252 is also effective. In this case, since the avoidance direction screen 301 hides part of the screen, the notification method using the display unit 252 may be used when the application is not executed such that the user always sees the entire screen.
　図１３は、携帯端末２００のスピーカ２５３を用いた通知方法を示す図である。図１３に示されるように、音声を出力することで回避方向を通知してもよい。人混みや自動車などによる騒音があまりない状態か、ユーザがイヤホンをしている場合に、音声を用いた通知方法を用いてもよい。 FIG. 13 is a diagram showing a notification method using the speaker 253 of the mobile terminal 200. FIG. As shown in FIG. 13, the avoidance direction may be notified by outputting a sound. A notification method using voice may be used when there is not much noise from crowds, automobiles, etc., or when the user is wearing earphones.
　次に、通知部２２５による警告の通知例について説明する。図１４は、「ぶるなび」等の力感覚提示技術を用いた警告の通知方法を示す図である。通知部２２５は、警告を行う場合に、力感覚提示技術を用いて、携帯端末２００を進行方向とは逆に牽引されているような力を発生させてもよい。牽引方向は、ジャイロセンサ２５７や地磁気センサ２５８により検出された携帯端末２００の角度や方向に応じて定められる。 Next, an example of warning notification by the notification unit 225 will be described. FIG. 14 is a diagram showing a warning notification method using force sensation presentation technology such as "VuruNavi". When issuing a warning, the notification unit 225 may use force sensation presentation technology to generate a force as if the portable terminal 200 were being pulled in the direction opposite to the traveling direction. The pulling direction is determined according to the angle and direction of mobile terminal 200 detected by gyro sensor 257 and geomagnetic sensor 258 .
　図１５は、振動を用いた警告の通知方法を示す図である。この場合、通知部２２５は駆動機構２５４の動作を制御し、携帯端末２００全体を振動させる。携帯端末２００全体が振動することで、ユーザは容易に振動を認識できるので、携帯端末２００は、ユーザに歩きスマホの中断や前方確認を行わせることができる。 FIG. 15 is a diagram showing a warning notification method using vibration. In this case, the notification unit 225 controls the operation of the driving mechanism 254 to vibrate the mobile terminal 200 as a whole. Since the mobile terminal 200 as a whole vibrates, the user can easily recognize the vibration, so the mobile terminal 200 can allow the user to stop using the smartphone while walking or check the front.
　図１６は、携帯端末２００の表示部２５２を用いた警告の通知方法を示す図である。歩きスマホをしているユーザは、画面を見ていることから、表示部２５２を用いた通知方法も有効である。回避方向の通知と異なる点は、警告画面３０２がより広い面積を占めることである。例えば、警告画面３０２が画面全体に表示されてもよい。画面全体に表示されることで、ユーザは容易に警告を認識できるので、携帯端末２００は、ユーザに歩きスマホの中断や前方確認を行わせることができる。 FIG. 16 is a diagram showing a warning notification method using the display unit 252 of the mobile terminal 200. FIG. A notification method using the display unit 252 is also effective because the user who is using the smartphone while walking is looking at the screen. The difference from the avoidance direction notification is that the warning screen 302 occupies a wider area. For example, the warning screen 302 may be displayed on the entire screen. Since the user can easily recognize the warning by displaying it on the entire screen, the mobile terminal 200 can cause the user to stop using the smartphone while walking or to check ahead.
　図１７は、スピーカ２５３を用いた通知方法を示す図である。回避方向の通知と異なる点は、緊急地震速報などと同様に警報音（図１７では、「ビービービー」）を出力する点である。警報音を出力することで、ユーザは容易に警告を認識できるので、携帯端末２００は、ユーザに歩きスマホの中断や前方確認を行わせることができる。 FIG. 17 is a diagram showing a notification method using the speaker 253. FIG. A difference from notification of the avoidance direction is that an alarm sound (“beep beep” in FIG. 17) is output in the same manner as an emergency earthquake bulletin. Since the user can easily recognize the warning by outputting the warning sound, the portable terminal 200 can cause the user to stop using the smartphone while walking or to check ahead.
　以上説明した実施形態において、他の携帯端末２００を所持するユーザにおいて、歩きスマホをしているユーザ、子供、老人、またはふらついている人がいる場合には、それらの人を回避するように回避方向を通知してもよい。なお、歩きスマホをしているユーザおよびふらついている人は、携帯端末の各種センサを用いた公知技術により特定可能である。また、子供、老人は、予めユーザにより年齢を登録させておき、この年齢を用いて特定可能である。 In the above-described embodiment, if there is a user who uses the smartphone while walking, a child, an elderly person, or a person who is staggering among the users who have other mobile terminals 200, the avoidance is performed so as to avoid these people. You can give directions. It should be noted that the user who is using the smartphone while walking and the person who is staggering can be identified by known technology using various sensors of the mobile terminal. In addition, children and elderly people can be specified by having their ages registered in advance by the user.
　以上説明した実施形態において、ＧＰＳを用いて位置を検出し、管理装置１００で各携帯端末２００の位置情報を収集することで、携帯端末２００は、回避方向などを通知しているが、これに限るものではない。例えば、携帯端末２００に設けられているカメラにより撮像された画像から、周囲の様子を把握することで、回避方向などを通知してもよい。例えば、撮像された画像に歩きスマホをしているユーザや子供や老人やふらついている人が写っている場合には、それらの人を回避するように回避方向を通知してもよい。 In the embodiment described above, the position is detected using GPS, and the position information of each mobile terminal 200 is collected by the management device 100, so that the mobile terminal 200 notifies the avoidance direction and the like. It is not limited. For example, the avoidance direction or the like may be notified by grasping the state of the surroundings from an image captured by a camera provided in the mobile terminal 200 . For example, when a user who is walking and using a smartphone, a child, an elderly person, or a person staggering appears in the captured image, an avoidance direction may be notified to avoid these people.
　また、歩きスマホをしているユーザは、一般的には歩行速度が低下する。そこで、歩行速度を速めるように通知してもよい。 In addition, users who use smartphones while walking generally slow down their walking speed. Therefore, the user may be notified to increase the walking speed.
　なお、携帯端末には、ナビゲーションシステム機能を有するものがある。ユーザが、ナビゲーションシステムを利用して、目的地に移動しながら歩きスマホをしている場合、回避方向として、目的地から遠くならない方向を通知してもよい。具体的に図９を例に説明すると、携帯端末２００は、回避方向Ａ、Ｂのうち、ユーザＲと目的地とを結ぶ線分と、回避方向とのなす角が小さい方を回避方向として通知してもよい。このようにすることで、携帯端末２００は、無駄に遠回りさせないようにユーザを回避させることができる。 It should be noted that some mobile terminals have navigation system functions. When the user uses a navigation system to walk and use a smartphone while moving to a destination, a direction that is not far from the destination may be notified as an avoidance direction. Specifically, referring to FIG. 9 as an example, the mobile terminal 200 notifies the avoidance direction of the avoidance directions A and B, whichever has the smaller angle between the line connecting the user R and the destination and the avoidance direction. You may By doing so, the portable terminal 200 can avoid the user so as not to wastefully detour.
　また、歩きスマホをしていないユーザが、歩きスマホをしているユーザから衝突されることを回避するために、歩きスマホをしていないユーザに歩きスマホをしているユーザが近づいていることを通知してもよい。 In addition, in order to prevent users who are not using smartphones while walking from colliding with users who are using smartphones while walking, users who are not using smartphones while walking are approaching users who are using smartphones while walking. may notify you.
　回避方向導出部２２４は、道路の段差や、道路に設置してあるオブジェクトなどを示すデータにもとづいて、段差やオブジェクトを回避するように回避方向を導出してもよい。 The avoidance direction derivation unit 224 may derive an avoidance direction so as to avoid steps and objects based on data indicating road steps and objects installed on the road.
[第１実施形態の変形例]
　上述した第１実施形態における衝突回避システム１は、携帯端末２００に予測部および回避方向導出部を備える構成であったが、管理装置１００が予測部および回避方向導出部を備える構成としてもよい。 [Modification of First Embodiment]
Although the collision avoidance system 1 in the first embodiment described above has a configuration in which the mobile terminal 200 includes the prediction unit and the avoidance direction derivation unit, the management device 100 may be configured to include the prediction unit and the avoidance direction derivation unit.
　図１８は、管理装置１００が予測部および回避方向導出部を備える構成例を示す図である。管理装置１００は、図２で説明した構成から近傍位置情報提供部１２４を除き、予測部７２３、回避方向導出部７２４および警告回避方向提供部７２６を加えた構成となる。この構成において、予測部７２３および回避方向導出部７２４は、近傍位置情報抽出部１２３が抽出した近傍位置情報と各携帯端末２００の位置情報とを取得し、入力とする。予測部７２３および回避方向導出部７２４は、各携帯端末２００について図８に示した処理を行うことで、携帯端末２００を所持するユーザと他人との衝突を予測し、回避方向を導出し、警告を通知するか否かを判定する。導出された回避方向や警告は、警告回避方向提供部７２６が、該当する各携帯端末２００に送信することによって出力する。 FIG. 18 is a diagram showing a configuration example in which the management device 100 includes a prediction unit and an avoidance direction derivation unit. The management device 100 has a configuration obtained by removing the nearby position information providing unit 124 from the configuration described with reference to FIG. In this configuration, the prediction unit 723 and the avoidance direction derivation unit 724 acquire the proximity position information extracted by the proximity position information extraction unit 123 and the position information of each mobile terminal 200 and use them as inputs. The prediction unit 723 and the avoidance direction derivation unit 724 perform the processing shown in FIG. It is determined whether or not to notify the The derived avoidance direction and warning are output by the warning avoidance direction providing unit 726 transmitting them to the corresponding mobile terminals 200 .
　図１９は、管理装置１００が予測部および回避方向導出部を備える場合の携帯端末２００の構成例を示す図である。携帯端末２００は、図４に示した構成から、位置情報取得部２２２、予測部２２３、および警告回転方向導出部２２４を除き、警告回避方向取得部７２７を備える。警告回避方向取得部７２７は、管理装置１００から回避方向又は警告に関する情報を受信することによって、回避方向又は警告に関する情報を取得する。通知部２２５は、警告回避方向取得部７２７により取得された回避方向又は警告を通知する。これにより、携帯端末２００は、衝突を回避するための情報をユーザに通知することができる。 FIG. 19 is a diagram showing a configuration example of the mobile terminal 200 when the management device 100 includes a prediction unit and an avoidance direction derivation unit. Mobile terminal 200 includes warning avoidance direction acquisition section 727 except for position information acquisition section 222, prediction section 223, and warning rotation direction derivation section 224 from the configuration shown in FIG. The warning avoidance direction obtaining unit 727 obtains information about the avoidance direction or the warning by receiving information about the avoidance direction or the warning from the management device 100 . The notification unit 225 notifies the avoidance direction or the warning acquired by the warning avoidance direction acquisition unit 727 . Thereby, the mobile terminal 200 can notify the user of information for avoiding collision.
[第２実施形態]
　第２実施形態では、ユーザと物体との衝突を回避するための衝突回避システムについて説明する。なお、第２実施形態では、物体として、列車を例に説明する。図２０は、衝突回避システム１００１のシステム構成を表すシステム構成図である。衝突回避システム１００１は、管理装置１１００、運行情報提供装置１６００、携帯端末１２００＿１～１２００＿ｎ（ｎは１以上の整数）を備える。以下、携帯端末１２００＿１～１２００＿ｎのそれぞれを特に区別しない場合には任意の１台を携帯端末１２００と表現する。携帯端末１２００は、例えばスマートフォンやタブレット端末である。ネットワーク１５００は、携帯電話回線やＷｉ－Ｆｉなど各種ネットワークで構成される。 [Second embodiment]
In the second embodiment, a collision avoidance system for avoiding collisions between a user and an object will be described. In addition, in 2nd Embodiment, a train is demonstrated as an example as an object. FIG. 20 is a system configuration diagram showing the system configuration of the collision avoidance system 1001. As shown in FIG. The collision avoidance system 1001 includes a management device 1100, an operation information providing device 1600, and mobile terminals 1200_1 to 1200_n (n is an integer equal to or greater than 1). Hereinafter, any one of the mobile terminals 1200_1 to 1200_n will be referred to as a mobile terminal 1200 unless otherwise distinguished. A mobile terminal 1200 is, for example, a smartphone or a tablet terminal. A network 1500 is composed of various networks such as a mobile phone line and Wi-Fi.
　運行情報提供装置１６００は、各駅の各ホームにおいて、列車がホームに入線することを管理装置１１００に入線通知として通知する。入線通知には、列車が到着する駅名と、ホームを示すホーム識別情報と、が含まれる。入線通知を受信することにより、管理装置１１００は、どの駅のどのホームに、列車が入線するかを認識することができる。 The operation information providing device 1600 notifies the management device 1100 that the train is entering the platform at each platform of each station as a train entry notification. The train entry notification includes the name of the station where the train arrives and platform identification information indicating the platform. By receiving the train entry notification, the management device 1100 can recognize which platform of which station the train will enter.
　図２１は、管理装置１１００の機能構成を表す機能ブロック図である。管理装置１１００は、バスで接続されたＣＰＵやメモリや補助記憶装置などを備え、管理プログラムを実行することによって通信部１１１０、位置情報記憶部１１４１、ホーム情報記憶部１１４２、および制御部１１２０を備える装置として機能する。なお、通信部１１１０、位置情報記憶部１１４１、ホーム情報記憶部１１４２、および制御部１１２０の各機能の全て又は一部は、ＡＳＩＣやＰＬＤやＦＰＧＡ等のハードウェアを用いて実現されてもよい。管理プログラムは、コンピュータ読み取り可能な記録媒体に記録されてもよい。コンピュータ読み取り可能な記録媒体とは、例えばフレキシブルディスク、光磁気ディスク、ＲＯＭ、ＣＤ－ＲＯＭ等の可搬媒体、コンピュータシステムに内蔵されるハードディスク等の記憶装置である。管理プログラムは、電気通信回線を介して送信されてもよい。管理プログラムには、各機能部（特に制御部１１２０）が動作する際に使用されるパラメータが含まれていてもよい。また、メモリや補助記憶装置は、管理プログラムの実行において管理者によって設定されたパラメータの値を記憶してもよい。 FIG. 21 is a functional block diagram showing the functional configuration of the management device 1100. As shown in FIG. The management device 1100 includes a CPU, a memory, an auxiliary storage device, and the like connected via a bus. It works as a device. All or part of the functions of the communication unit 1110, the location information storage unit 1141, the home information storage unit 1142, and the control unit 1120 may be realized using hardware such as ASIC, PLD, FPGA, or the like. The management program may be recorded on a computer-readable recording medium. Computer-readable recording media include portable media such as flexible disks, magneto-optical disks, ROMs and CD-ROMs, and storage devices such as hard disks incorporated in computer systems. The management program may be transmitted via telecommunication lines. The management program may include parameters used when each functional unit (especially the control unit 1120) operates. The memory or auxiliary storage device may also store parameter values set by the administrator in executing the management program.
　通信部１１１０は、ネットワークインタフェースである。通信部１１１０はネットワーク５００を介して、運行情報提供装置１６００および携帯端末１２００と通信する。 A communication unit 1110 is a network interface. Communication unit 1110 communicates with operation information providing device 1600 and mobile terminal 1200 via network 500 .
　位置情報記憶部１１４１は、磁気ハードディスク装置や半導体記憶装置等の記憶装置を用いて構成される。位置情報記憶部１１４１は、携帯端末１２００の位置情報を示す位置データベースを記憶する。図２２は、位置データベースの具体例を示す図である。位置データベースは、ＩＭＥＩ（端末識別番号）、電話番号、駅名、およびホームで構成される。 The position information storage unit 1141 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. Position information storage unit 1141 stores a position database indicating position information of mobile terminal 1200 . FIG. 22 is a diagram showing a specific example of the position database. The location database consists of IMEI (terminal identification number), phone number, station name, and platform.
　ＩＭＥＩ、電話番号は第１実施形態で説明した通りである。駅名は、携帯端末１２００が位置する駅名である。ホームは、携帯端末１２００が位置する駅のホームである。位置データベースは、携帯端末１２００から位置情報が取得されるたびに更新される。 The IMEI and phone number are as explained in the first embodiment. The station name is the name of the station where the mobile terminal 1200 is located. The platform is the platform of the station where the mobile terminal 1200 is located. The location database is updated each time location information is obtained from mobile terminal 1200 .
　ホーム情報記憶部１１４２は、磁気ハードディスク装置や半導体記憶装置等の記憶装置を用いて構成される。ホーム情報記憶部１１４２は、駅とホームとを特定するためのホームデータベースを記憶する。図２３は、ホームデータベースの具体例を示す図である。ホームデータベースは、緯度範囲、経度範囲、駅名、およびホームで構成される。 The home information storage unit 1142 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. Platform information storage unit 1142 stores a platform database for specifying stations and platforms. FIG. 23 is a diagram showing a specific example of the home database. The home database consists of latitude ranges, longitude ranges, station names, and platforms.
　緯度範囲は、駅のホームが位置する緯度の範囲を示す。経度範囲は、駅のホームが位置する経度の範囲を示す。駅名は、緯度範囲及び経度範囲が示す領域に位置するホームを有する駅の名称である。ホームは、緯度範囲及び経度範囲が示す領域に位置するホームである。携帯端末１２００から取得された緯度及び経度が、緯度範囲及び経度範囲のいずれにも含まれる場合、対応する駅名とホームとが抽出される。例えば、携帯端末１２００の位置に関して、緯度がａ１以上ａ２以下で、経度がｂ１以上ｂ２以下の場合、携帯端末１２００は、駅名がＳＴＡという駅の１番ホームに位置することを示す。 The latitude range indicates the latitude range where the station platform is located. The longitude range indicates the range of longitude in which the platform of the station is located. The station name is the name of a station having a platform located in the area indicated by the latitude range and longitude range. A home is a home located in the area indicated by the latitude range and longitude range. If the latitude and longitude obtained from mobile terminal 1200 are included in both the latitude range and the longitude range, the corresponding station name and platform are extracted. For example, when the latitude of the mobile terminal 1200 is between a1 and a2 and the longitude is between b1 and b2, it indicates that the mobile terminal 1200 is located on Platform 1 of a station named STA.
　図２１における制御部１１２０は管理装置１１００の各部の動作を制御する。制御部１１２０は、例えばＣＰＵ等のプロセッサー、およびＲＡＭを備えた装置により実現される。制御部１１２０は、管理プログラムを実行することによって、位置情報取得部１１２１、位置情報更新部１１２２、ホーム情報抽出部１１２３、および列車入線情報提供部１１２４として機能する。列車入線情報提供部１１２４は、第２実施形態における予測部の一例である。 A control unit 1120 in FIG. 21 controls the operation of each unit of the management device 1100 . The control unit 1120 is implemented by a device including a processor such as a CPU and a RAM, for example. Control unit 1120 functions as position information acquisition unit 1121, position information update unit 1122, platform information extraction unit 1123, and train arrival information provision unit 1124 by executing the management program. The train arrival information providing unit 1124 is an example of the prediction unit in the second embodiment.
　位置情報取得部１１２１は、携帯端末１２００から位置情報通知を受信することで位置情報を取得し、入力とする。位置情報更新部１１２２は、位置情報取得部１１２１により取得された位置情報に基づいて、携帯端末１２００が位置する駅名とホームとを抽出し、位置情報記憶部１１４１に記憶された位置データベースを更新する。ホーム情報抽出部１１２３は、運行情報提供装置１６００から入線通知を受信し、入力とする。ホーム情報抽出部１１２３は、入線通知を入力した場合に、すなわち列車がホームに入線する場合に、そのホームに位置する携帯端末１２００を抽出する。列車入線情報提供部１１２４は、ホーム情報抽出部１１２３により抽出された携帯端末１２００のユーザと列車との衝突を予測する。列車入線情報提供部１１２４は、列車が入線するホームに位置する携帯端末１２００のうち、列車との衝突が予測されたユーザの携帯端末１２００に対し、予測結果や回避方向や警告等の情報を含む列車入線情報を送信することによって、出力する。 The location information acquisition unit 1121 acquires location information by receiving a location information notification from the mobile terminal 1200 and uses it as an input. Location information update unit 1122 extracts the station name and platform where mobile terminal 1200 is located based on the location information acquired by location information acquisition unit 1121, and updates the location database stored in location information storage unit 1141. . The home information extracting unit 1123 receives the notification of entering the line from the operation information providing device 1600 and uses it as an input. The platform information extracting unit 1123 extracts the portable terminal 1200 located at the platform when the train entry notification is input, that is, when the train enters the platform. The train entry information providing unit 1124 predicts a collision between the user of the portable terminal 1200 extracted by the platform information extracting unit 1123 and the train. The train entry information providing unit 1124 includes information such as prediction results, avoidance directions, and warnings for the mobile terminals 1200 of users who are predicted to collide with a train among the mobile terminals 1200 located on the platform where the train enters. Output by transmitting train arrival information.
　図２４は、携帯端末１２００の機能構成を表す機能ブロック図である。携帯端末１２００は、バスで接続されたＣＰＵやメモリや補助記憶装置などを備え、衝突関連プログラムを実行することによって通信部１２１０、制御部１２２０、操作部１２５１、表示部１２５２、スピーカ１２５３、駆動機構１２５４、ＧＰＳ受信機１２５５、加速度センサ１２５６、ジャイロセンサ１２５７、および地磁気センサ１２５８を備える装置として機能する。なお、通信部１２１０、および制御部１２２０の各機能の全て又は一部は、ＡＳＩＣやＰＬＤやＦＰＧＡ等のハードウェアを用いて実現されてもよい。衝突関連プログラムには、各機能部（特に制御部１２２０）が動作する際に使用されるパラメータが含まれていてもよい。また、メモリや補助記憶装置は、衝突関連プログラムの実行においてユーザや管理者によって設定されたパラメータの値を記憶してもよい。 FIG. 24 is a functional block diagram showing the functional configuration of the mobile terminal 1200. As shown in FIG. Portable terminal 1200 includes a CPU, a memory, an auxiliary storage device, and the like connected by a bus, and executes a collision-related program to control communication unit 1210, control unit 1220, operation unit 1251, display unit 1252, speaker 1253, and drive mechanism. 1254 , GPS receiver 1255 , acceleration sensor 1256 , gyro sensor 1257 and geomagnetic sensor 1258 . All or part of each function of the communication unit 1210 and the control unit 1220 may be realized using hardware such as ASIC, PLD, FPGA, or the like. The collision-related program may include parameters used when each functional unit (especially control unit 1220) operates. In addition, the memory or auxiliary storage device may store parameter values set by the user or administrator in executing the collision-related program.
　図２４において、操作部１２５１、表示部１２５２、スピーカ１２５３、駆動機構１２５４、ＧＰＳ受信機１２５５、加速度センサ１２５６、ジャイロセンサ１２５７、および地磁気センサ１２５８は、第１実施形態で説明した通りである。 24, the operation unit 1251, display unit 1252, speaker 1253, driving mechanism 1254, GPS receiver 1255, acceleration sensor 1256, gyro sensor 1257, and geomagnetic sensor 1258 are as described in the first embodiment.
　図２４における制御部１２２０は携帯端末１２００の各部の動作を制御する。制御部１２２０は、例えばＣＰＵ等のプロセッサー、およびＲＡＭを備えた装置により実現される。制御部１２２０は、衝突関連プログラムを実行することによって、位置情報取得部１２２１、および通知部１２２５として機能する。 A control unit 1220 in FIG. 24 controls the operation of each unit of the mobile terminal 1200 . The control unit 1220 is implemented by a device including a processor such as a CPU and a RAM, for example. Control unit 1220 functions as position information acquisition unit 1221 and notification unit 1225 by executing a collision-related program.
　位置情報取得部１２２１は、ＧＰＳ受信機１２５５からＧＰＳ信号を取得し、入力とする。位置情報取得部１２２１は、入力されたＧＰＳ信号に基づいて、携帯端末１２００（自装置）の位置情報を取得する。取得された位置情報は、所定時間（例えば０．５秒）ごとに管理装置１１００に送信される。例えば、位置情報取得部１２２１は、自装置の最新の位置情報を含む信号である位置情報通知を生成し、管理装置１１００に送信する。通知部１２２５は、列車入線情報を管理装置１１００から受信した場合に、自装置のユーザに対して警告等に関する情報を通知することによって、出力する。通知部１２２５は、表示部１２５２、スピーカ１２５３、または駆動機構１２５４を用いて自装置のユーザに通知する。 The position information acquisition unit 1221 acquires the GPS signal from the GPS receiver 1255 and uses it as an input. Location information acquisition unit 1221 acquires location information of mobile terminal 1200 (own device) based on the input GPS signal. The acquired position information is transmitted to the management device 1100 every predetermined time (for example, 0.5 seconds). For example, the location information acquisition unit 1221 generates a location information notification, which is a signal including the latest location information of its own device, and transmits it to the management device 1100 . When receiving train arrival information from the management device 1100, the notification unit 1225 outputs by notifying the user of the own device of information regarding a warning or the like. The notification unit 1225 uses the display unit 1252, the speaker 1253, or the drive mechanism 1254 to notify the user of the device itself.
　図２５は、管理装置１１００と、運行情報提供装置１６００と、携帯端末１２００との処理を示すシーケンス図である。上述したように、携帯端末１２００は、所定時間ごとに管理装置１１００に位置情報を送信する。ステップＳ２０１、２０３に示されるように、携帯端末１２００の位置情報は、位置情報通知として管理装置１１００に送信される。管理装置１１００の位置情報取得部１１２１が位置情報通知を受信することで取得すると、ステップＳ２０２、２０４に示されるように、位置情報更新部１１２２が位置データベースを更新する。 FIG. 25 is a sequence diagram showing processing by the management device 1100, the operation information providing device 1600, and the mobile terminal 1200. As described above, mobile terminal 1200 transmits location information to management device 1100 at predetermined time intervals. As shown in steps S201 and S203, the location information of mobile terminal 1200 is transmitted to management device 1100 as a location information notification. When the location information acquisition unit 1121 of the management device 1100 acquires the location information by receiving the location information notification, the location information update unit 1122 updates the location database as shown in steps S202 and S204.
　運行情報提供装置１６００は、入線通知を管理装置１１００に送信する（ステップＳ２０５）。管理装置１１００のホーム情報抽出部１１２３は、入線通知に示される駅名とホームに位置する携帯端末２００を抽出する（ステップＳ２０６）。図２５の場合、携帯端末２００＿１が位置するものとする。 The operation information providing device 1600 transmits an entry notification to the management device 1100 (step S205). The platform information extraction unit 1123 of the management device 1100 extracts the station name indicated in the incoming line notification and the portable terminal 200 located on the platform (step S206). In the case of FIG. 25, it is assumed that the mobile terminal 200_1 is located.
　列車入線情報提供部１１２４は、携帯端末１２００＿１に、列車入線情報を提供する（ステップＳ２０７）。列車入線情報を受信した携帯端末１２００＿１は、自装置のユーザに対して警告を通知する（ステップＳ２０８）。警告の通知方法は、図１４、図１５、図１６、図１７と同様の態様で行われる。 The train arrival information providing unit 1124 provides the mobile terminal 1200_1 with train arrival information (step S207). The mobile terminal 1200_1 that has received the train arrival information notifies the user of the mobile terminal 1200_1 of a warning (step S208). A warning notification method is performed in the same manner as in FIGS.
　以上説明したフローチャートに示されるように、携帯端末１２００の通知部１２２５は、所定のタイミングで、警告を通知する。また、所定のタイミングは、列車の入線タイミングである。なお、列車の入線タイミングとは、必ずしも列車がホームに入線する瞬間である必要は無く、入線する予定の所定の時間の前（例えば５秒前、１０秒前、３０秒前、１分前など）であってもよい。このようにすることで、ユーザと列車との衝突を回避することができる。 As shown in the flow chart described above, the notification unit 1225 of the mobile terminal 1200 notifies a warning at a predetermined timing. Further, the predetermined timing is the train entry timing. Note that the train entry timing does not necessarily have to be the moment when the train enters the platform, but before a predetermined time (for example, 5 seconds, 10 seconds, 30 seconds, 1 minute, etc.) ). By doing so, a collision between the user and the train can be avoided.
　以上、この発明の実施形態について図面を参照して詳述してきたが、具体的な構成はこの実施形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計等も含まれる。 Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes design within the scope of the gist of the present invention.
　本発明は、携帯端末のユーザの安全を向上させることを可能とするシステムに適用可能である。 The present invention can be applied to systems that can improve the safety of users of mobile terminals.
１…衝突回避システム、１００…管理装置、１１０…通信部、１２０…制御部、１２１…位置情報取得部、１２２…位置情報更新部、１２３…近傍位置情報抽出部、１２４…近傍位置情報提供部、１４１…位置情報記憶部、２００、２００＿１、２００＿ｎ…携帯端末、２１０…通信部、２２０…制御部、２２１…位置情報取得部、２２２…近傍位置情報取得部、２２３…予測部、２２４…回避方向導出部、２２５…通知部、２４０…他端末情報記憶部、２５１…操作部、２５２…表示部、２５３…スピーカ、２５４…駆動機構、２５６…加速度センサ、２５７…ジャイロセンサ、２５８…地磁気センサ、３０１…回避方向画面、３０２…警告画面、５００…ネットワーク、１００１…衝突回避システム、１１００…管理装置、１１１０…通信部、１１２０…制御部、１１２１…位置情報取得部、１１２２…位置情報更新部、１１２３…ホーム情報抽出部、１１２４…列車入線情報提供部、１１４１…位置情報記憶部、１１４２…ホーム情報記憶部、１２００、１２００＿１、１２００＿ｎ…携帯端末、１２１０…通信部、１２２０…制御部、１２２１…位置情報取得部、１２２５…通知部、１２５１…操作部、１２５２…表示部、１２５３…スピーカ、１２５４…駆動機構、１２５６…加速度センサ、１２５７…ジャイロセンサ、１２５８…地磁気センサ、１６００…運行情報提供装置、 DESCRIPTION OF SYMBOLS 1... Collision avoidance system 100... Management apparatus 110... Communication part 120... Control part 121... Position information acquisition part 122... Position information update part 123... Near position information extraction part 124... Near position information provision part , 141 position information storage unit 200, 200_1, 200_n mobile terminal 210 communication unit 220 control unit 221 position information acquisition unit 222 near position information acquisition unit 223 prediction unit 224 avoidance Direction derivation unit 225 Notification unit 240 Other terminal information storage unit 251 Operation unit 252 Display unit 253 Speaker 254 Drive mechanism 256 Acceleration sensor 257 Gyro sensor 258 Geomagnetic sensor , 301... Avoidance direction screen, 302... Warning screen, 500... Network, 1001... Collision avoidance system, 1100... Management device, 1110... Communication unit, 1120... Control unit, 1121... Position information acquisition unit, 1122... Position information update unit , 1123... Platform information extraction unit 1124... Train entry information providing unit 1141... Position information storage unit 1142... Home information storage unit 1200, 1200_1, 1200_n... Portable terminal 1210... Communication unit 1220... Control unit 1221 Position information acquisition unit 1225 Notification unit 1251 Operation unit 1252 Display unit 1253 Speaker 1254 Drive mechanism 1256 Acceleration sensor 1257 Gyro sensor 1258 Geomagnetic sensor 1600 Operation information provision Device,

Claims (7)

  1. 　携帯端末と管理装置とを備える衝突回避システムであって、
    　前記携帯端末を所持するユーザと人との衝突を予測する予測部と、
    　前記予測部により、前記ユーザと前記人との衝突が予測された場合に、衝突を回避するための情報を前記ユーザに通知する通知部と、
    　を備えた衝突回避システム。     A collision avoidance system comprising a mobile terminal and a management device,
    a prediction unit that predicts a collision between a user possessing the mobile terminal and a person;
    a notification unit that notifies the user of information for avoiding a collision when the prediction unit predicts a collision between the user and the person;
    Collision avoidance system with
  2. 　前記通知部は、衝突を回避するための情報として、衝突を回避する方向を通知する請求項１に記載の衝突回避システム。 The collision avoidance system according to claim 1, wherein the notification unit notifies the collision avoidance direction as information for collision avoidance.
  3. 　前記予測部は、衝突を回避するための情報として、警告を通知する請求項１に記載の衝突回避システム。 The collision avoidance system according to claim 1, wherein the prediction unit notifies a warning as information for avoiding a collision.
  4. 　前記通知部は、所定のタイミングで衝突を回避するための情報を通知する請求項１から請求項３のいずれか１項に記載の衝突回避システム。 The collision avoidance system according to any one of claims 1 to 3, wherein the notification unit notifies information for avoiding a collision at a predetermined timing.
  5. 　前記予測部は、前記携帯端末を所持する前記ユーザと物体との衝突を予測し、
    　前記通知部は、前記予測部により、前記ユーザと前記物体との衝突が予測された場合に、衝突を回避するための情報を前記ユーザに通知する請求項１から請求項４のいずれか１項に記載の衝突回避システム。     The prediction unit predicts a collision between the user holding the mobile terminal and an object,
    5. Any one of claims 1 to 4, wherein the notification unit notifies the user of information for avoiding a collision when the prediction unit predicts a collision between the user and the object. The collision avoidance system described in .
  6. 　携帯端末を所持するユーザと人との衝突を予測する予測ステップと、
    　前記予測ステップにより、前記ユーザと前記人との衝突が予測された場合に、衝突を回避するための情報を前記ユーザに通知する通知ステップと、
    　を備えた制御方法。     a prediction step of predicting a collision between a user possessing a mobile terminal and a person;
    a notification step of notifying the user of information for avoiding a collision when the collision between the user and the person is predicted by the prediction step;
    control method with
  7. 　請求項１から請求項５のいずれか１項に記載の衝突回避システムとしてコンピュータを機能させるためのプログラム。 A program for causing a computer to function as the collision avoidance system according to any one of claims 1 to 5.
PCT/JP2021/035846 2021-09-29 2021-09-29 Collision avoidance system, control method, and program WO2023053265A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/035846 WO2023053265A1 (en) 2021-09-29 2021-09-29 Collision avoidance system, control method, and program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/035846 WO2023053265A1 (en) 2021-09-29 2021-09-29 Collision avoidance system, control method, and program

Publications (1)

Publication Number Publication Date
WO2023053265A1 true WO2023053265A1 (en) 2023-04-06

Family

ID=85781578

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/035846 WO2023053265A1 (en) 2021-09-29 2021-09-29 Collision avoidance system, control method, and program

Country Status (1)

Country Link
WO (1) WO2023053265A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018160002A (en) * 2017-03-22 2018-10-11 日本電気株式会社 Collision prevention device, communication system, collision prevention method, and computer program
KR20190059497A (en) * 2017-11-23 2019-05-31 최용준 Smartphone for supporting walking
JP2020145609A (en) * 2019-03-07 2020-09-10 ソフトバンク株式会社 Communication terminal device, and control method and program thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018160002A (en) * 2017-03-22 2018-10-11 日本電気株式会社 Collision prevention device, communication system, collision prevention method, and computer program
KR20190059497A (en) * 2017-11-23 2019-05-31 최용준 Smartphone for supporting walking
JP2020145609A (en) * 2019-03-07 2020-09-10 ソフトバンク株式会社 Communication terminal device, and control method and program thereof

Similar Documents

Publication Publication Date Title
US20160323233A1 (en) Method and system for providing traffic information-based social network service
WO2017181905A1 (en) Road condition warning method, apparatus, server, control apparatus, and operating system
KR20190011488A (en) Electronic device for controlling communication circuit based on identification information received from external device and method for operating thereof
KR20190017171A (en) Electronic device for transmitting communication signal associated with pedestrian safety and method for operating thereof
US20170116860A1 (en) Method, apparatus and storage medium for providing collision alert
KR20190011582A (en) Electronic device for identifying external vehicle changing identification based on data associated with movement of external vehicle
US10930147B2 (en) Electronic apparatus, roadside unit, and transport system
WO2015156279A1 (en) System for sharing information between pedestrian and driver
JP2016184276A (en) Portable terminal, control method of portable terminal, and program for portable terminal
JP2009217350A (en) Inter-vehicle communication system and in-vehicle communication equipment and portable communication equipment
CN109708657B (en) Reminding method and mobile terminal
US11181386B2 (en) Navigation device, destination guiding system, and non-transitory recording medium
US10609510B2 (en) Mobile electronic apparatus, mobile electronic apparatus control method, a non-transitory computer readable recording medium, for providing warnings to a user of the apparatus based on the location of the electronic apparatus
US20160352845A1 (en) Ride-sharing system and method
JP2019204241A (en) Notification method
KR102611775B1 (en) Method and electronic device for transmitting group message
WO2023053265A1 (en) Collision avoidance system, control method, and program
JP2017123072A (en) Driving support apparatus and computer program
JP5602008B2 (en) In-vehicle device and portable device
JP2017182418A (en) Driving assisting device and driving support system
KR101667699B1 (en) Navigation terminal and method for guiding movement thereof
JP6775143B2 (en) Warning system and warning method
KR101613022B1 (en) Wearable Haptic Apparatus and method of providing walking guidance information using the same
CN109855643B (en) Lane guiding method and navigation equipment
JP2013200133A (en) Navigation device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21959312

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE