JP5794123B2 - Server apparatus, communication control method, communication control program, and service system - Google Patents

Description

The present invention is a server apparatus, communication control method, communication control program, and a service system.

  In recent years, it is known to provide a service based on sensing information of a terminal device from a server device to a terminal device such as a mobile phone. That is, each of a plurality of terminal devices registered in a service based on sensing information sequentially collects position information of the terminal device using a GPS (Global Positioning System) receiver mounted on the terminal device, and sense information To the server device.

  The server device receives the sensing information transmitted from each terminal device. For example, the server device holds in advance the genre of information desired by the user who owns each terminal device, and each terminal device is based on the position information included in the received sensing information and the genre of information desired by the user. Provide service information to For example, for a terminal device of a user who desires information on a shopping facility such as a department store, the server device extracts information on a nearby facility such as a department store and provides it as service information. In addition, for example, for a terminal device of a user who desires information on a restaurant such as a restaurant, the server device extracts information on a nearby facility such as a restaurant and provides it as service information.

  In such a service using sensing information, each terminal device constantly senses the position information of its own terminal device, and uploads the sensing information to the server device, which tends to increase the power consumption of the terminal device. .

  In contrast, in the prior art, the positioning timing of position information is distributed among a plurality of terminal devices, and each terminal device exchanges position information with a nearby terminal device using short-range wireless communication. It is known to use location information. Thereby, it is considered that each terminal device contributes to the power saving of the terminal device because the interval for positioning and uploading the location information is widened.

JP 2010-71962 A

  However, the conventional technology does not consider the suppression of the power consumption of the terminal device while maintaining the performance of the service based on the sensing information.

  In other words, since the conventional technology performs pairing between nearby terminal devices and transmits / receives location information to / from each other, if there is no nearby terminal device to be paired with, the terminal device sends a server to the server. The location information uploaded to the device is intermittent. As a result, service information obtained from the server device is also intermittent, and service performance may be degraded.

The technology disclosed, which has been made in view of the above, the server device capable of suppressing the power consumption of the terminal device while maintaining the performance of the service based on the sensing information, communication control method, communication control program, and The purpose is to realize a service system .

  In one aspect, the server device disclosed in the present application is based on scan information transmitted from a plurality of terminal devices that detect and transmit other terminal devices around the terminal device. A generating unit that generates a group of the detected terminal device group is provided. In addition, the server device includes a selection unit that selects a terminal device in charge of collecting and transmitting sensing information including position information of the terminal device from a group of terminal devices in the group generated by the generation unit. In addition, the server device includes a transmission unit that transmits a power saving signal for stopping transmission of the sensing information to a terminal device other than the responsible terminal device selected by the selection unit among the terminal device group in the group. . The server device includes a service control unit that provides a service based on sensing information transmitted from the terminal device selected as the terminal device in charge to the terminal device group in the group.

  According to one aspect of the server device disclosed in the present application, the power consumption of the terminal device can be suppressed while maintaining the performance of the service based on the sensing information.

FIG. 1 is a diagram showing an outline of a service system using sensing information. FIG. 2 is a diagram illustrating functional blocks of the terminal device. FIG. 3 is a diagram illustrating an example of the power saving operation history. FIG. 4 is a diagram illustrating an example of responsible terminal information. FIG. 5 is a diagram illustrating an example of a hardware configuration of the terminal device. FIG. 6 is a diagram illustrating functional blocks of the server device. FIG. 7 is a diagram illustrating an example of an ID verification storage unit. FIG. 8 is a diagram illustrating an example of the terminal information storage unit. FIG. 9 is a diagram illustrating an example of group information. FIG. 10 is a diagram illustrating an example of the group history. FIG. 11 is a diagram illustrating an example of a hardware configuration of the server apparatus. FIG. 12 is a diagram illustrating an example of a processing flow of the terminal device. FIG. 13 is a diagram illustrating an example of a processing flow of the terminal device. FIG. 14 is a diagram illustrating an example of a processing flow of the server apparatus. FIG. 15 is a diagram illustrating an example of group generation. FIG. 16 is a diagram illustrating an example of a processing flow of the server apparatus. FIG. 17 is a diagram illustrating an example of a processing flow of the server apparatus.

Hereinafter, the server apparatus disclosed in the present application will be described in detail with reference communication control method, communication control program, and an embodiment of the service system to the drawings. The disclosed technology is not limited by this embodiment.

  In the following description, first, an overview of a service system using sensing information in the present embodiment will be described, and then details of the server device and the terminal device will be described. FIG. 1 is a diagram showing an outline of a service system using sensing information. As shown in FIG. 1, the service system using sensing information includes a server device 100 and a plurality of terminal devices 200-a, 200-b, and 200-c.

  First, each of the terminal devices 200-a, 200-b, and 200-c transmits, to the server device 100, scan information 301 that is a result of detecting other terminal devices that exist within a predetermined distance around the terminal device. .

  Based on the scan information 301 received from the terminal devices 200-a, 200-b, and 200-c, the server device 100 generates a group of terminal device groups that are traveling together. In the example of FIG. 1, the terminal devices 200-a, 200-b, and 200-c mutually detect other terminal devices, and the terminal device groups of the terminal devices 200-a, 200-b, and 200-c Assume that a group 201 has been created.

  The server device 100 selects a terminal device in charge of collecting and transmitting sensing information from the terminal devices 200-a, 200-b, and 200-c in the group 202. For example, the server device 100 selects a terminal device having the shortest elapsed time since the previous execution of the power saving operation for stopping the transmission of sensing information or the terminal device having the largest remaining battery level as the responsible terminal. In the example of FIG. 1, it is assumed that the terminal device 200-a is selected as the responsible terminal device.

  The server apparatus 100 transmits a power saving signal 302 for stopping the transmission of sensing information to the terminal apparatuses 200-b and 200-c other than the terminal apparatus 200-a selected as the responsible terminal apparatus.

  Upon receiving the power saving signal 302, the terminal devices 200-b and 200-c stop transmitting the sensing information. On the other hand, since the terminal device 200-a selected as the responsible terminal device has not received the power saving signal 302, it collects sensing information including position information of the terminal device as normal operation. Then, the terminal device 200-a transmits the collected sensing information 304 to the server device 100.

  The server device 100 handles the sensing information 304 transmitted from the terminal device 200-a as the terminal device 200-a and also as sensing information of the terminal devices 200-b and 200-c. That is, the server device 100 regards the sensing information 304 transmitted from the terminal device 200-a as the sensing information of the terminal devices 200-b and 200-c and diverts it. Based on the position information of the sensing information 304, the server apparatus 100 uses, for example, information on facilities such as department stores near the terminal apparatuses 200-a, 200-b, and 200-c as service information 306 as the terminal apparatus 200-a, 200-b and 200-c.

  Although FIG. 1 shows an example in which the sensing information 304 is position information of the terminal devices 200-a, 200-b, and 200-c, the present invention is not limited to this. For example, the sensing information 304 uses not only the position information of the terminal devices 200-a, 200-b, and 200-c but also an acceleration sensor mounted on the terminal devices 200-a, 200-b, and 200-c. Movement information such as detected acceleration can also be included. In this case, the server apparatus 100 may determine whether to transmit the service information 306 using the movement information included in the sensing information 304. For example, when the acceleration is relatively small, the server device 100 determines that the user who owns the terminal devices 200-a, 200-b, and 200-c is moving on foot and transmits the service information 306. can do. On the other hand, when the acceleration is relatively large, the server device 100 regards the service information 306 as if the user who owns the terminal devices 200-a, 200-b, and 200-c is moving by train or car. It can be determined not to transmit.

  Next, functional blocks of the terminal device will be described. FIG. 2 is a diagram illustrating functional blocks of the terminal device. Since the terminal devices 200-a, 200-b, and 200-c basically include the same functional blocks, the terminal devices 200-a, 200-b, and 200-c are summarized in the following description for convenience of explanation. Terminal device 200. As illustrated in FIG. 2, the terminal device 200 includes a peripheral device scanning unit 202, a communication unit 204, an operation control unit 206, a battery remaining amount acquisition unit 208, a sensing information acquisition unit 210, and a storage unit 212.

  The peripheral device scanning unit 202 scans the peripheral device of the terminal device 200, and acquires a peripheral device ID (IDentification) of a peripheral device (for example, another terminal device) existing within a predetermined distance around the terminal device 200. And stored in the storage unit 212. The peripheral device scanning unit 202 is realized by, for example, a wireless local area network (LAN) or bluetooth (registered trademark). In addition, the peripheral device scanning unit 202 scans the peripheral device of the terminal device 200 according to the peripheral device scan execution command transmitted from the operation control unit 206, for example.

  The communication unit 204 wirelessly communicates with the server apparatus 100 by, for example, transmitting scan information 301 or sensing information 304 to the server apparatus 100 or receiving a power saving signal transmitted from the server apparatus 100. Control transmission and reception of signals.

  The operation control unit 206 switches between the power saving mode and the normal mode of the terminal device 200 based on the power saving signal received from the server device 100 via the communication unit 204. The battery remaining amount acquisition unit 208 acquires the remaining amount of the battery installed in the terminal device 200 itself.

  The sensing information acquisition unit 210 acquires position information of the terminal device 200 using a GPS receiver mounted on the terminal device 200, and uses the acceleration sensor mounted on the terminal device 200. Get the acceleration (movement information). The sensing information acquisition unit 210 stores the acquired position information and movement information in the storage unit 212 as sensing information 304.

  The storage unit 212 is a table that stores, for example, a power saving operation history and responsible terminal information as various types of information used in the terminal device 200. The power saving operation history and responsible terminal information will be described in detail below.

  FIG. 3 is a diagram illustrating an example of the power saving operation history. As illustrated in FIG. 3, the power saving operation history includes a peripheral device ID 214 and a time 216 corresponding to the peripheral device ID 214. The peripheral device ID 214 is scan information 301 (an ID of another terminal device) detected by the peripheral device scanning unit 202, and the scan information 301 acquired in the power saving operation mode is accumulated. The peripheral device ID 214 is a physical address that is uniquely assigned to each terminal device 200 such as a MAC (Media Access Control) address. The time 216 represents the time when the peripheral device ID 214 is detected.

  For example, FIG. 3 illustrates an example of a power saving operation history in the terminal device 200-c, which is “A” that is the device ID of the terminal device 200-a and the device ID of the terminal device 200-b. It is assumed that “B” is stored.

  FIG. 4 is a diagram illustrating an example of responsible terminal information. As shown in FIG. 4, the responsible terminal information includes a responsible terminal device ID 218 and a responsible end time 220 corresponding to the responsible terminal device ID 218. The responsible terminal device ID 218 is an ID of the terminal device selected as the responsible terminal device that collects and transmits the sensing information 304. The responsible terminal device ID 218 is a physical address uniquely assigned to each terminal device 200 such as a MAC address. Further, the charge end time 220 represents a time at which the terminal device selected as the charge terminal device ends the charge and collection of the sensing information 304.

  For example, FIG. 4 shows an example of the power saving operation history in the terminal device 200-c, in which “A” that is the device ID of the terminal device 200-a selected as the responsible terminal device is stored. It shall be.

  Next, the hardware configuration of the terminal device will be described. FIG. 5 is a diagram illustrating an example of a hardware configuration of the terminal device. As shown in FIG. 5, the terminal device 200 includes a GPS receiver 252, an acceleration sensor 254, an HDD (Hard Disk Drive) 258, a battery 260, a CPU (Central Processing Unit) 262, and a ROM (Read Only Memory) 264. . For example, the GPS receiver 252, the acceleration sensor 254, the HDD 258, the battery 260, the CPU 262, and the ROM 264 are connected to each other via the bus 270.

  The GPS receiver 252 detects the current position of the terminal device based on the radio wave received from the GPS satellite. The acceleration sensor 254 is a sensor that detects the acceleration of the terminal device. The GPS receiver 252 and the acceleration sensor 254 are used when the sensing information acquisition unit 210 collects the sensing information 304. The HDD 258 is a memory that stores various types of information used in the terminal device 200. The HDD 258 stores a power saving operation history and terminal information in charge of the storage unit 212 described with reference to FIG.

  The battery 260 is a battery that supplies power to each circuit of the terminal device 200. The ROM 264 holds a communication control program 264a. Here, the ROM 264 is given as an example of a recording medium that holds the communication control program 264a, but other computer-readable recording media such as an HDD, a RAM (Random Access Memory), and a CD (Compact Disc) -ROM can be used. Various programs can also be stored. Moreover, a storage medium may be arrange | positioned in a remote place and a terminal device may acquire and utilize a program by accessing the storage medium. At that time, the acquired program may be stored in the recording medium of the terminal device itself and used.

  The CPU 262 reads out and executes the communication control program 264a, thereby realizing operations similar to those of the peripheral device scanning unit 202, the communication unit 204, the operation control unit 206, the battery remaining amount acquisition unit 208, and the sensing information acquisition unit 210. .

  Next, functional blocks of the server device will be described. FIG. 6 is a diagram illustrating functional blocks of the server device. As illustrated in FIG. 6, the server device 100 includes a communication unit 102, an ID verification storage unit 104, a terminal information storage unit 106, and a group management storage unit 108. In addition, the server device 100 includes a group generation unit 162, a responsible selection unit 164, a service control unit 166, and an isolated terminal extraction unit 168.

  The communication unit 102 receives data such as the scan information 301 and the sensing information 304 from a plurality of terminal devices 200 registered in the service system using the sensing information 304, and transmits a power saving signal or the like to the terminal device 200. Send data.

  The ID verification storage unit 104 is a table for converting a device ID such as a MAC address transmitted from the terminal device 200 into a service ID using the sensing information 304. Here, an example of the ID collation storage unit 104 will be described with reference to FIG.

  FIG. 7 is a diagram illustrating an example of an ID verification storage unit. As illustrated in FIG. 7, the ID verification storage unit 104 includes a device ID 152 and a terminal ID 154 corresponding to the device ID 152. The device ID 152 is a device ID such as a MAC address transmitted from the terminal device 200. The terminal ID 154 is assigned corresponding to the device ID 152 and is a service ID using the sensing information 304.

  In the example of FIG. 7, it is assumed that “a” is assigned as the terminal ID 154 to the terminal device whose device ID 152 is “A”. In the example of FIG. 7, “b” is assigned as the terminal ID 154 to the terminal device with the device ID 152 of “B”, and “c” is assigned as the terminal ID 154 to the terminal device with the device ID 152 of “C”. It is assumed that

  Returning to the description of FIG. 6, the terminal information storage unit 106 is a table that stores the terminal ID, the current operation mode, the remaining battery level, and the information history for each terminal device 200. Here, an example of the terminal information storage unit 106 will be described with reference to FIG.

  FIG. 8 is a diagram illustrating an example of the terminal information storage unit. As illustrated in FIG. 8, the terminal information storage unit 106 includes a terminal ID 112, an operation mode 114, a remaining battery level 116, and an information history 118.

  The terminal ID 112 is an ID of a terminal device that the server device 100 manages regarding a service using the sensing information 304. The terminal ID 112 is an ID converted using the ID verification storage unit 104. A terminal device whose terminal ID 112 is “a” corresponds to the terminal device 200-a, a terminal device whose terminal ID 112 is “b” corresponds to the terminal device 200-b, and a terminal device whose terminal ID 112 is “c” is the terminal device. Corresponds to 200-c.

  The operation mode 114 stores information indicating whether each terminal device is currently in the normal operation mode or the power saving operation mode. Here, since the power saving signal is not transmitted from the server apparatus 100, the normal operation mode is a normal operation in which scanning is performed on the peripheral devices and the scan information 301 is uploaded and the sensing information 304 is collected. The operation mode to upload. On the other hand, the power saving operation mode is an operation mode in which uploading of the sensing information 304 is stopped and scanning of the peripheral devices is performed and the scan information 301 is collected and accumulated because a power saving signal is transmitted from the server device 100. is there. In the example of FIG. 8, it is assumed that the terminal device whose terminal ID 112 is “a” is set to the normal operation mode, and the terminal device whose terminal ID 112 is “b, c” is set to the power saving operation mode.

  Information indicating the remaining battery level of each terminal device 200 is stored in the remaining battery level 116. The battery remaining amount 116 stores, for example, information indicating the ratio of the remaining amount of the battery when the state in which the battery of each terminal device 200 is fully charged is 100%. In the example of FIG. 8, the terminal device whose terminal ID 112 is “a” has a battery remaining amount “70%”, the terminal device whose terminal ID 112 is “b” has a remaining battery amount “60%”, and the terminal ID 112 It is assumed that the terminal device with “c” has a remaining battery level of “50%”.

  The information history 118 has a time 120, a position 122, an acceleration 124, and a surrounding terminal ID 126. The position 122 indicates position information transmitted from the terminal device selected as the responsible terminal device, and the acceleration 124 indicates movement information transmitted from the terminal device selected as the responsible terminal device. The time 120 indicates the time when the terminal device selected as the responsible terminal device acquires the position information and the movement information. The surrounding terminal ID 126 is an ID of a peripheral device (for example, another terminal device) existing within a predetermined distance around each terminal device, and is transmitted from the responsible terminal in the power saving operation mode when the responsible terminal device is switched. The power saving operation history is saved. The information history 118 stores not only current information of each terminal device 200 but also past information history.

  Here, the sensing information 304 including the position information and the movement information is selected as the responsible terminal device and transmitted from the terminal device 200-a in the normal operation mode, while the terminal devices 200-b and 200 in the power saving operation mode. Not sent from -c. Sensing information 304 transmitted from the terminal device 200-a is stored at time 120, position 122, and acceleration 124 as sensing information of the terminal device whose terminal ID 112 is “a”. In addition, the sensing information 304 transmitted from the terminal device 200-a is copied and stored in the time 120, the position 122, and the acceleration 124 as sensing information of the terminal device whose terminal ID 112 is “b”. Further, the sensing information 304 transmitted from the terminal device 200-a is copied and stored as sensing information of the terminal device whose terminal ID 112 is “c” at the time 120, the position 122, and the acceleration 124. That is, the sensing information 304 transmitted from the terminal device 200-a is handled as sensing information of the terminal device 200-a, and is also used for sensing information of the terminal device 200-b and the terminal device 200-c.

  Returning to the description of FIG. 6, the group management storage unit 108 includes group information and group history. The group information is a table that stores the terminal IDs of a plurality of terminal devices of the current accompanying action group, the terminal IDs of the current responsible terminal devices, the time when the responsible terminal device is in charge, the time when the group is started, and the like. . The group history is a table in which terminal IDs of a plurality of terminal devices of the group and times when groups by the plurality of terminal devices have been established in the past are accumulated. Hereinafter, the group information and the group history will be described with reference to FIGS.

  FIG. 9 is a diagram illustrating an example of group information. As shown in FIG. 9, the group information includes a member terminal ID 132, a responsible terminal ID 134, a responsible end time 136, and a group start time 138. The member terminal ID 132 stores the terminal ID of a terminal device that is a member of a group generated by a plurality of terminal devices acting together. In the example of FIG. 9, terminal devices having terminal IDs “a”, “b”, and “c” are stored in the member terminal ID 132.

  The responsible terminal ID 134 stores the terminal ID of the responsible terminal apparatus that collects and transmits the sensing information 304 among the plurality of terminal apparatuses forming the group. In the example of FIG. 9, the terminal device with the terminal ID “a” is stored in the responsible terminal ID 134.

  The charge end time 136 stores the time when the charge terminal device finishes collecting and transmitting the sensing information 304. The group start time 138 stores the time at which a group was generated by a plurality of terminal devices acting together.

  FIG. 10 is a diagram illustrating an example of the group history. As shown in FIG. 10, the group history has a member terminal ID 142 and a group establishment time 144. The member terminal ID 142 stores the terminal ID of a terminal device that is a member of a group generated by a plurality of terminal devices acting together. In the example of FIG. 10, terminal devices having terminal IDs “a”, “b”, and “c” are stored in the member terminal ID 142. The group establishment time 144 is stored by accumulating the total time that the group has been established in the past by a plurality of terminal devices stored in the member terminal ID 142.

  Returning to the description of FIG. 6, the group generation unit 162 generates a group of terminal device groups acting together from the plurality of terminal devices 200 based on the scan information 301 transmitted from the plurality of terminal devices 200. To do. The responsible selection unit 164 selects a responsible terminal device that collects and transmits the sensing information 304 from the group of terminal devices in the group generated by the group generation unit 162. Then, the charge selection unit 164 generates a power saving signal that causes the terminal device other than the selected charge terminal device among the terminal device groups in the group to stop transmitting the sensing information 304 via the communication unit 102, The data is transmitted via the communication unit 102. For example, when the terminal selection unit 164 selects the terminal device 200-a as the terminal in charge, the charge selection unit 164 transmits a power saving signal to the terminal devices 200-b and 200-c.

  The service control unit 166 treats the sensing information 304 transmitted from the terminal device selected as the responsible terminal device as sensing information of the responsible terminal device, and treats the same sensing information as sensing information of terminal devices other than the responsible terminal device. . For example, when the terminal device 200-a is selected as the responsible terminal, the service control unit 166 stores the sensing information 304 transmitted from the terminal device 200-a in the terminal information storage unit 106 as the sensing information of the terminal device 200-a. Store. In addition to this, the service control unit 166 stores the sensing information 304 transmitted from the terminal device 200-a in the terminal information storage unit 106 as sensing information of the terminal devices 200-b and 200-c. Then, the service control unit 166 provides a service based on the sensing information 304 transmitted from the terminal device selected as the responsible terminal device to the terminal device group in the group.

  Based on the position information included in the sensing information 304 transmitted from a terminal device that does not belong to the group, the isolated terminal extraction unit 168 selects a terminal device in which no other terminal device exists within a predetermined distance around the terminal device. Extract. The isolated terminal extraction unit 168 stops transmission of the scan information 301 to a terminal device that does not belong to the group and for which no other terminal device exists within a predetermined distance around the terminal device itself. A scan stop signal is generated and transmitted via the communication unit 102.

  Next, the hardware configuration of the server apparatus 100 will be described. FIG. 11 is a diagram illustrating an example of a hardware configuration of the server apparatus. As illustrated in FIG. 11, the server apparatus 100 includes an HDD 180, a CPU 182, and a ROM 184. For example, the HDD 180, the CPU 182, and the ROM 184 are connected to each other via the bus 170.

  The HDD 180 is a memory that stores various types of information used in the server device 100. The HDD 180 stores the ID collation storage unit 104, the terminal information storage unit 106, and the group management storage unit 108 described with reference to FIG.

  The ROM 184 holds a communication control program 184a. Here, the ROM 184 is given as an example of a recording medium that holds the communication control program 184a. However, various programs can be stored in other computer-readable recording media such as an HDD, a RAM, and a CD-ROM. Further, a storage medium may be arranged at a remote place, and the server apparatus 100 may acquire and use the program by accessing the storage medium. At that time, the acquired program may be stored in the recording medium of the server device 100 itself and used.

  The CPU 182 reads out and executes the communication control program 184a, thereby realizing operations similar to those of the group generation unit 162, the responsible selection unit 164, the service control unit 166, and the isolated terminal extraction unit 168.

  Next, the processing flow of the terminal device 200 will be described. 12 and 13 are diagrams illustrating an example of a processing flow of the terminal device. FIG. 12 is a processing flow when an operation instruction signal is received from the server apparatus 100, and FIG. 13 is a processing flow when transmitting scan information and sensing information.

  First, as illustrated in FIG. 12, the communication unit 204 receives an operation instruction signal from the server device 100 (step S101). Subsequently, the operation control unit 206 determines whether or not the received operation instruction signal indicates a power saving operation (step S102).

  Subsequently, when the operation control unit 206 determines that the received operation instruction signal indicates a power saving operation (Yes in step S102), the operation terminal signal ID included in the operation instruction signal, and the operation The end time is stored in the responsible terminal information in the storage unit 212 (step S103). Subsequently, the operation control unit 206 sends a command to stop the acquisition process of the sensing information 304 to the sensing information acquisition unit 210 (step S104).

  On the other hand, when the operation control unit 206 determines that the received operation instruction signal does not indicate a power saving operation (No in step S102), the operation control unit 206 performs a process of acquiring the sensing information 304 to the sensing information acquisition unit 210. A command to start is sent (step S105).

  Next, as illustrated in FIG. 13, the operation control unit 206 sends a scan command to the peripheral device scanning unit 202, and the peripheral device scanning unit 202 acquires the device ID around the terminal device (step S201). The peripheral device scanning unit 202 acquires peripheral device IDs of the terminal device by scanning the peripheral devices using low power short-range wireless communication such as wireless LAN or bluetooth (registered trademark). Subsequently, the operation control unit 206 determines whether or not the current terminal device is currently saving power (step S202). That is, the operation control unit 206 determines whether the own terminal device is the responsible terminal device and is operating in the normal operation mode or the power saving operation mode.

  If the operation control unit 206 determines that the terminal device is currently saving power (Yes in step S202), the device ID of the current terminal device is included in the acquired peripheral device ID. It is determined whether or not (step S203). That is, the operation control unit 206 determines whether or not the distance from the responsible terminal device is greater than or equal to a predetermined distance due to the movement of the own terminal device or the responsible terminal device. If the operation control unit 206 determines that the acquired peripheral device ID includes the device ID of the current responsible terminal device (Yes in step S203), does the current time be the charge end time? It is determined whether or not (step S204).

  If the operation control unit 206 determines that the current time is not the assigned end time (No in step S204), the operation control unit 206 stores the acquired peripheral device ID in the power saving operation history of the storage unit 212 (step S205).

  On the other hand, when the operation control unit 206 determines that the current time is the assigned end time (step S204, Yes), the operation control unit 206 acquires the peripheral device ID during power saving from the storage unit 212 (step S206). Then, the operation control unit 206 generates transmission data including the acquired peripheral device ID during power saving (step S207), and transmits the transmission data to the server device 100 via the communication unit 204 (step S208). That is, when the terminal device in charge reaches the sensing end time, the terminal devices other than the terminal device in charge upload the history of the scan information 301 of the peripheral devices to the server device 100.

  If the operation control unit 206 determines that the acquired peripheral device ID does not include the device ID of the current terminal device (No in step S203), the operation control unit 206 switches from the power saving operation mode to the normal operation mode. (Step S209). Subsequently, the operation control unit 206 sends a sensing command to the sensing information acquisition unit 210, and the sensing information acquisition unit 210 acquires the sensing information 304 (step S210). Subsequently, the operation control unit 206 acquires a peripheral device ID during power saving from the storage unit 212 (step S211).

  Subsequently, the operation control unit 206 generates transmission data including the acquired sensing information 304 and a peripheral device ID during power saving (step S212), and transmits the transmission data to the server device 100 via the communication unit 204 (step S213). ).

  On the other hand, when the operation control unit 206 determines that the terminal device is not currently saving power (No in step S202), the operation control unit 206 sends a sensing command to the sensing information acquisition unit 210, and the sensing information acquisition unit 210 transmits the sensing information 304. Obtain (step S214). Subsequently, the operation control unit 206 generates transmission data including the acquired sensing information 304 (step S215), and transmits the transmission data to the server device 100 via the communication unit 204 (step S216).

  Next, a processing flow of the server device 100 will be described. FIG. 14 is a diagram illustrating an example of a processing flow of the server apparatus. FIG. 14 shows a process in which the server device 100 generates a group of terminal device groups that are accompanied, and selects a responsible terminal device from the group.

  As shown in FIG. 14, first, the group generation unit 162 extracts a plurality of terminal device groups A that are currently detected in the normal operation mode (step S301). Subsequently, the group generation unit 162 extracts terminal device groups A ′ that are detected from each other for a certain period in the terminal device group A (step S302).

  Here, generation of a group will be described with reference to FIG. FIG. 15 is a diagram illustrating an example of group generation. As shown in FIG. 15, it is assumed that there are a plurality of terminal devices 200-a, 200-b, 200-c, 200-d, and 200-e. For example, in the example of FIG. 15, it is detected that the terminal devices 200-a, 200-b, and 200-c exist within a predetermined distance around the terminal device. Further, the terminal device 200-e detects that the terminal device 200-e exists within a predetermined distance around the terminal device 200-c, but the terminal device 200-a and the terminal device 200-b Are not detected. The terminal device 200-d detects that the terminal device 200-c exists within a predetermined distance around the terminal device 200-d, but the terminal device 200-c does not detect the terminal device 200-d.

  Since the group generation unit 162 detects that the terminal devices 200-a, 200-b, and 200-c exist within a predetermined distance around the terminal device 200, the group generation unit 162 detects the terminal devices 200-a, 200-b. , 200-c are extracted as the terminal device group A. In addition, when the terminal devices 200-a, 200-b, and 200-c detect each other for a certain period of time that is equal to or greater than a preset threshold value (th), the group generation unit 162 detects the terminal devices 200-a and 200-200. -B and 200-c are extracted as the terminal device group A ′ to generate a group.

  Here, the group generation unit 162 determines a threshold (th) based on the total time of past group establishment times when determining a terminal device group that is detected for a certain period of time and considered to be accompanying the group. can do. For example, the group generation unit 162 can obtain the threshold (th) by the following equation.

  th = α + β (1− (Σt / T) / n)

  Here, α is a minimum time required to determine that a plurality of terminal devices detect each other for a certain period of time. β is a predetermined constant. t is a past group establishment time of a plurality of terminal devices to be determined. T is “24”, which is the number of hours per day. n is the number of days that a plurality of terminal devices to be determined have been established as a group in the past. That is, (Σt / T) / n indicates a ratio in which a plurality of terminal devices to be determined are established as a group in the past.

  When this ratio is large, that is, when a plurality of terminal devices to be determined are terminal devices that frequently accompany behavior such as family members or friends, the value of the threshold th is small. Therefore, when these terminal devices are group establishment determination targets, the group generation unit 162 establishes them as a group if they detect each other for a relatively short time. Thereby, a terminal device that frequently accompanies such as a family member or a friend can be shifted to the power saving operation mode earlier by establishing a group and determining a sensing person in advance.

  On the other hand, in the case where the ratio is small, that is, the terminal devices that do not frequently accompany the determination target terminal devices, but happen to be close to each other and detect each other, the value of the threshold th increases. . Therefore, when these terminal devices are group establishment determination targets, the group generation unit 162 confirms that they have detected each other for a relatively long time, and establishes them as a group for the first time. As a result, for the terminal devices that happen to be close to each other and detect each other, it is possible to eliminate the complexity of the process of moving away and deleting the group immediately after establishing the group. In addition, since it is established as a group only after confirming that a plurality of terminal devices detect each other for a relatively long time, a group can be established for a group of terminal devices that are truly accompanied.

  Returning to the description of FIG. 14, the responsible selection unit 164 selects a responsible terminal device from the terminal device group A ′ based on the power saving operation history or the remaining battery level (step S <b> 303). For example, the person-in-charge selecting unit 164 has the longest elapsed time since the last execution of the power saving operation for stopping the transmission of the sensing information 304 based on the power saving signal among the terminal devices belonging to the terminal device group A ′. A short terminal device can be selected as the responsible terminal device. In this case, the charge selection unit 164 refers to the terminal information storage unit 106, and from among the terminal devices belonging to the terminal device group A ′, the terminal device having the shortest elapsed time since the previous execution of the power saving operation Can be selected as the responsible terminal device. Thereby, since the terminal device which repeats collection and transmission of the sensing information 304 as the responsible terminal device can be set to the power saving operation mode, the power consumption of the terminal device group can be suppressed fairly.

  On the other hand, the person-in-charge selecting unit 164 can also select, as the terminal in charge, the terminal device with the largest remaining battery capacity among the terminal devices belonging to the terminal device group A ′. In this case, the responsible selection unit 164 can select the terminal device with the largest remaining battery capacity as the responsible terminal from among the terminal devices belonging to the terminal device group A ′ with reference to the terminal information storage unit 106. . Thereby, since a terminal device with little battery remaining can be made into a power saving operation mode, the power consumption of a terminal device group can be suppressed fairly.

  Subsequently, the responsible selection unit 164 issues a power saving operation instruction to the terminal devices other than the terminal device selected as the responsible terminal among the terminal devices belonging to the terminal device group A ′ (step S304). For example, the responsible selection unit 164 transmits the sensing information 304 to the terminal devices other than the terminal device selected as the responsible terminal among the terminal devices belonging to the terminal device group A ′ via the communication unit 102. Send a power-saving signal to stop. Further, the power saving signal includes the device ID of the latest terminal device in charge and the charge end time of the terminal device in charge. Accordingly, since the terminal devices other than the responsible terminal device perform the power saving operation, the transmission of the sensing information 304 is stopped, the peripheral device is scanned, and the history of the scan information 301 is stored in the power storage operation history of the storage unit 212. Save to storage. On the other hand, since the responsible terminal device performs normal operation, it acquires and transmits the sensing information 304 and the peripheral device scan information 301.

  Subsequently, the service control unit 166 updates the terminal information storage unit 106 and the group management storage unit 108 (step S305). For example, the service control unit 166 sets the operation mode 114 of each terminal device in the terminal information storage unit 106 to “normal” or based on the group generated by the group generation unit 162 and the terminal device selected by the responsible selection unit 164. Update to “Power Saving”. Further, for example, the service control unit 166 updates each information in the group management storage unit 108 based on the group generated by the group generation unit 162 and the terminal device selected by the responsible selection unit 164.

  The server device 100 generates the group, and when the end time for sensing of the terminal device in charge is reached, the terminal information storage unit 106 stores the scan information 301 of the peripheral device during the power saving operation transmitted from each terminal device. , And the group management storage unit 108, and again generate a group of terminal devices that are accompanied by the user based on the flow of FIG.

  Next, another example of the processing flow of the server apparatus 100 will be described. FIG. 16 is a diagram illustrating an example of a processing flow of the server apparatus. FIG. 16 shows processing when the server device 100 receives data from the terminal device.

  First, the communication unit 102 receives data transmitted from the terminal device 200 (step S401). Subsequently, the service control unit 166 determines whether or not the received data is data transmitted from the responsible terminal device (step S402).

  If the service control unit 166 determines that the received data is not the data transmitted from the responsible terminal device (step S402, No), is the received terminal loss notification indicating that the received data has lost sight of the responsible terminal device? It is determined whether or not (step S403). Here, the notification of missing terminal in charge means that the terminal device that belongs to a certain group and is not selected as the terminal device in charge is separated from the terminal device in charge due to movement or the like, so that the terminal device in charge is included in the scan information 301. It is a signal to be transmitted when there is no more.

  If the service control unit 166 determines that the received data is a notification of missing terminal in charge (Yes in step S403), the service control unit 166 updates the terminal information storage unit 106 and the group management storage unit 108 (step S404). For example, the service control unit 166 removes the terminal device that has transmitted the responsible terminal loss notification from the group and enters the normal operation mode. Therefore, the service control unit 166 changes the operation mode 114 of the terminal device that has transmitted the responsible terminal loss notification from “power saving” to “normal”. To "". Also, the service control unit 166 deletes the terminal device that has transmitted the notification of missing terminal in charge from the member terminal ID of the group information. In addition, the service control unit 166 deletes the terminal device that has transmitted the notification of missing terminal in charge from the member terminal ID of the group history.

  Subsequently, the service control unit 166 determines whether or not there are still a plurality of terminal devices in the group (step S405). If it is determined that there are still a plurality of terminal devices in the group (step S405, Yes), the service control unit 166 ends the process.

  On the other hand, when the service control unit 166 determines that a plurality of terminal devices do not yet exist in the group (step S405, No), the service control unit 166 deletes the group (step S406). That is, when the number of terminal devices belonging to the group becomes one, the service control unit 166 deletes the group because the group can no longer be formed.

  Further, when the service control unit 166 determines that the received data is not a notification of missing terminal in charge (No in step S403), the service control unit 166 writes the received data in the information history of the terminal device that transmitted the data (step S407). For example, if the received data is not a notification that the responsible terminal has been lost, the terminal device that transmitted the data is a terminal device that does not belong to the group. In this case, the service control unit 166 stores the received sensing information 304 in the column of the terminal device that transmitted the sensing information 304 in the terminal information storage unit 106. As described above, when data is uploaded from a terminal device that does not belong to the group, the server device 100 simply stores the sensing information 304 in the information history of the terminal device that has transmitted the data.

  Subsequently, the service control unit 166 provides a service based on the sensing information 304 to each terminal device in the period for providing the service (step S408). For example, the service control unit 166 provides a service based on the sensing information 304 transmitted from each terminal device to the terminal devices not belonging to the group.

  On the other hand, if the service control unit 166 determines that the received data is data transmitted from the terminal device in charge (Yes in step S402), the service control unit 166 converts peripheral device IDs in the received data into terminal IDs (step S409). ). For example, the service control unit 166 converts the peripheral device ID 162 in the transmission data transmitted from the responsible terminal device into the terminal ID 154 using the ID collation storage unit 104.

  Subsequently, the service control unit 166 writes the received data in the information history of the other terminal device in the group (step S410). For example, the service control unit 166 stores the sensing information 304 received from the terminal device in charge in the column of other terminal devices of the group in the terminal information storage unit 106.

  Subsequently, the service control unit 166 writes the received data in the information history of the terminal device that transmitted the data (step S411). For example, the service control unit 166 stores the sensing information 304 received from the responsible terminal device in the field of the responsible terminal device in the terminal information storage unit 106. As described above, when data is uploaded from the responsible terminal device, the server device 100 stores the sensing information 304 in the information history of all the terminal devices in the group.

  Subsequently, the service control unit 166 provides a service based on the sensing information 304 to each terminal device in the period of providing the service (step S412). For example, the service control unit 166 provides a service based on the sensing information 304 transmitted from the responsible terminal device to the terminal device group established as a group.

  Next, another example of the processing flow of the server apparatus 100 will be described. FIG. 17 is a diagram illustrating an example of a processing flow of the server apparatus. FIG. 17 shows processing when the server apparatus 100 instructs the stop of the scan information 301.

  As shown in FIG. 17, first, the isolated terminal extraction unit 168 extracts terminal devices that are not in a group and do not include the peripheral device ID in the scan information 301 (step S501). Subsequently, the isolated terminal extraction unit 168 determines whether or not the extracted terminal device is separated from all other terminal devices by a certain distance or more (step S502). For example, the isolated terminal extraction unit 168 determines whether or not the extracted terminal devices are separated from all other terminal devices by a certain distance or more based on position information included in the sensing information 304 of the plurality of terminal devices. .

  Subsequently, when the isolated terminal extraction unit 168 determines that the extracted terminal device is separated from all other terminal devices by a certain distance or more (step S502, Yes), the transmission of the scan information 301 of the peripheral devices is stopped. A scan stop signal to be generated is generated and transmitted to the extracted terminal device via the communication unit 102 (step S503). As described above, since the terminal device that does not belong to the group and is separated from the other terminal device by a certain distance or more is considered to be isolated from the other terminal device, the scan information 301 is transmitted. By stopping, power consumption can be suppressed.

  On the other hand, if the isolated terminal extraction unit 168 determines that the extracted terminal device is not separated from all other terminal devices by a certain distance (No in step S502), whether the extracted terminal device is currently in the isolated mode. It is determined whether or not (step S504). Here, the isolated mode is an operation mode in which transmission of the scan information 301 is stopped in response to a scan stop signal transmitted from the server device 100.

  When the isolated terminal extraction unit 168 determines that the extracted terminal device is currently in the isolated mode (Yes in step S504), the normal mode indicating that the operation in the isolated mode is terminated and the collection of the scan information 301 is resumed. An instruction signal is generated and transmitted to the extracted terminal device via the communication unit 102 (step S505). On the other hand, if the isolated terminal extraction unit 168 determines that the extracted terminal device is not currently in the isolated mode (step S504, No), the process ends.

Above, the server device of the present embodiment, a communication control method, communication control program, and according to the service system, it is possible to suppress the power consumption of the terminal device while maintaining the performance of the service based on the sensing information 304. That is, if there are terminal devices that receive the same service based on the sensing information 304 continuously in the vicinity, it is considered that these terminal device groups collect similar sensing information 304. Therefore, in this embodiment, the server apparatus 100 extracts a terminal apparatus group that detects each other based on the scan information 301 of each terminal apparatus, and selects a terminal apparatus that collects and transmits the sensing information 304. The transmission of the sensing information 304 is stopped to terminal devices other than the person in charge. Thereby, since terminal devices other than the terminal in charge do not need to upload the sensing information 304, the power consumption of the terminal device can be suppressed. In addition to this, in the present embodiment, the sensing information 304 transmitted from the responsible terminal device is regarded as the sensing information of the responsible terminal group of the group, and a service based on the sensing information 304 is provided to the terminal device group of the group. Thereby, each terminal device of a group can receive provision of the quality service based on the sensing information 304 in real time, suppressing power consumption. Therefore, according to the present embodiment, the power consumption of the terminal device can be suppressed while maintaining the performance of the service based on the sensing information 304.

DESCRIPTION OF SYMBOLS 100 Server apparatus 102 Communication part 104 ID collation memory | storage part 106 Terminal information memory | storage part 108 Group management memory | storage part 162 Group production | generation part 164 Charge selection part 166 Service control part 168 Isolated terminal extraction part 184a Communication control program 200 Terminal apparatus 202 Peripheral apparatus Scan unit 204 Communication unit 206 Operation control unit 208 Battery remaining amount acquisition unit 210 Sensing information acquisition unit 264a Communication control program 301 Scan information 302 Power saving signal 304 Sensing information 306 Service information

Claims (8)

Generating a group of terminal device groups detected from each other among the plurality of terminal devices based on scan information transmitted by detecting and transmitting other terminal devices around the terminal device. And
A selection unit that selects a responsible terminal device that collects and transmits sensing information including position information of the terminal device from among the terminal device groups in the group generated by the generation unit;
A transmission unit that transmits a power saving signal for stopping transmission of the sensing information until a predetermined time to a terminal device other than the responsible terminal device selected by the selection unit among the terminal device group in the group;
A service control unit that provides a service based on sensing information transmitted from the terminal device selected as the responsible terminal device to the terminal device group in the group including the responsible terminal device until the predetermined time ;
A server device comprising: The server device according to claim 1, wherein the selection unit selects, as the terminal device in charge, a terminal device having the largest remaining battery capacity among the terminal devices of the terminal device group. The generation unit extracts a group of terminal devices that are mutually detected as being within a predetermined distance around the terminal device based on scan information of the plurality of terminal devices, and the extracted terminal device group There If you are each other detects a certain period each other less than the threshold value set in advance, the server device according to claim 1 or 2, characterized in that to produce a group of terminal device group. The generation unit determines whether the terminal device group is a group of terminal device groups that are accompanied by the terminal device group according to the group establishment time of the terminal device group that has been established as a group in the past. The server device according to claim 3 , wherein the threshold value is changed. Based on position information included in the sensing information transmitted from a plurality of terminal devices not belonging to the group, within a predetermined distance around the terminal device from among the plurality of terminal devices not belonging to the group An extraction unit that extracts a terminal device for which no other terminal device exists;
And the transmission unit, with respect to the extracted terminal device, the server device according to any one of claims 1 to 4, characterized in that to transmit the scan stop signal for stopping the transmission of the scan information. Server device
Based on scan information transmitted by detecting and transmitting other terminal devices around the terminal device, a plurality of terminal devices generate a group of terminal devices that are mutually detected from the plurality of terminal devices,
Select the responsible terminal device that collects and transmits sensing information including the location information of the terminal device from the group of terminal devices in the generated group,
Transmitting a power-saving signal to stop transmission of the sensing information until a predetermined time to a terminal device other than the selected responsible terminal device among the terminal device group in the group,
The communication based on sensing information transmitted from the terminal device selected as the responsible terminal device until the predetermined time is provided to the terminal device group in the group including the responsible terminal device. Control method. On the server device,
Based on scan information transmitted by detecting and transmitting other terminal devices around the terminal device, a plurality of terminal devices generate a group of terminal devices that are mutually detected from the plurality of terminal devices,
Select the responsible terminal device that collects and transmits sensing information including the location information of the terminal device from the group of terminal devices in the generated group,
Transmitting a power-saving signal to stop transmission of the sensing information until a predetermined time to a terminal device other than the selected responsible terminal device among the terminal device group in the group,
Until the predetermined time , a process based on sensing information transmitted from the terminal device selected as the responsible terminal device is provided to the terminal device group in the group including the responsible terminal device. A featured communication control program.   In a service system including a server device and a plurality of terminal devices,
  The server device
  Based on the scan information transmitted by detecting and transmitting other terminal devices around the terminal device, the plurality of terminal devices generate a group of terminal devices detected from the plurality of terminal devices. A generator,
  A selection unit that selects a responsible terminal device that collects and transmits sensing information including position information of the terminal device from among the terminal device groups in the group generated by the generation unit;
  A transmission unit that transmits a power saving signal for stopping transmission of the sensing information until a predetermined time to a terminal device other than the responsible terminal device selected by the selection unit among the terminal device group in the group;
  A service control unit that provides a service based on sensing information transmitted from the terminal device selected as the responsible terminal device to the terminal device group in the group including the responsible terminal device until the predetermined time;
  A service system characterized by comprising:

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