JP7352715B1 - Information processing device and information processing method - Google Patents

Abstract

[Problem] To suppress the power consumption of a device that performs positioning while enabling positioning regardless of whether it is inside or outside a facility. The information processing device 5 includes a first acquisition unit 531 that acquires first position information indicating the position of the first device measured by the first device 1 based on signals transmitted by one or more positioning satellites; The position of the second device 2 determined based on a second signal that is a signal communicated between the second device 2 associated with the first device 1 and a plurality of third devices 3 provided in the facility. a second acquisition unit 532 that acquires second location information indicating the first location information, and a second acquisition unit 532 that acquires second location information indicating the second location information; a sleep control unit 533 that transmits to the device having the positioning function to put to sleep a signal for putting at least one of the first positioning function and the second positioning function, which is a function related to positioning of the second position information of the second device 2, to sleep; , has. [Selection diagram] Figure 4

Description

The present invention relates to an information processing device and an information processing method.

2. Description of the Related Art Techniques for transmitting content according to the location of a terminal are known. Patent Document 1 discloses that position information indicating the position measured by the device is acquired from a device worn by the user and is capable of positioning using GNSS (Global Navigation Satellite System), and content is displayed based on the position information. An apparatus is disclosed for providing a device with a.

Japanese Patent Application Publication No. 2022-040118

When a user is located inside a facility, the device may not be able to receive a signal from a positioning satellite corresponding to a GNSS signal, and therefore may not be able to specify the user's location, and may not be able to provide content corresponding to the location. In response to this, users are required to wear other devices for positioning using Bluetooth (registered trademark) Low Energy, etc., and the position is specified using the device inside a facility or the like.

When positioning is enabled using these devices, a problem arises in that the devices continue to perform functions related to positioning even in situations where positioning cannot be performed, resulting in increased power consumption.

Therefore, the present invention has been made in view of these points, and an object of the present invention is to suppress the power consumption of a device that performs positioning while enabling positioning regardless of whether it is inside or outside a facility.

The information processing apparatus according to the first aspect of the present invention includes a first acquisition method for acquiring first position information indicating a position of the first device measured by the first device based on signals transmitted by one or more positioning satellites. of the second device whose position is determined based on a second signal that is a signal communicated between a second device associated with the first device, and a plurality of third devices provided in the facility. a second acquisition unit that acquires second location information indicating a location; and a function related to positioning of the first location information that the first device has based on the acquisition status of the first location information and the second location information. and a second positioning function, which is a function related to positioning of the second location information of the second device, to send a signal to the device having the positioning function to sleep. It has a control section.

The sleep control unit is configured to control the sleep control unit, in response to satisfying a predetermined condition, when the first acquisition unit acquires the first position information and the second acquisition unit acquires the second position information. A signal may be sent to the first device to put the first positioning function to sleep.

The first acquisition unit acquires reception status information indicating a reception status of a signal when the first device receives a signal from the one or more positioning satellites, and the sleep control unit acquires the first position information and the second acquisition unit acquires the second position information, the first acquisition unit acquires the first position information based on the reception status indicated by the reception status information acquired by the first acquisition unit. A signal may be sent to the first device to put the positioning function to sleep.

The second acquisition unit is configured to receive information indicating a reception radio wave status of a radio wave corresponding to a signal communicated between the second device and the plurality of third devices in the second device or the plurality of third devices. The sleep control unit acquires the radio wave status information, and if the second acquisition unit acquires the second location information and the first acquisition unit does not acquire the first location information, the sleep control unit controls the second acquisition unit to acquire the second location information. Based on the received radio wave condition indicated by the received radio wave condition information acquired by the unit, it may be controlled whether to transmit a signal for canceling sleep of the first positioning function to the first device.

When transmitting to the first device a signal for canceling sleep of the first positioning function based on the received radio wave condition, the sleep control section indicates a position corresponding to the position indicated by the position information of the second device. , assist position information that assists positioning of the first position information by the first positioning function may be transmitted to the first device.

The sleep control unit may transmit the assist position information indicating a position determined based on the positions of the plurality of third devices communicating with the second device to the first device.

The sleep control unit is configured to send a signal to put the second positioning function to sleep when the first acquisition unit acquires the first position information and the second acquisition unit does not acquire the second position information. It may also be sent to a second device.

The sleep control unit controls the first device and the second device when the first acquisition unit does not acquire the first position information and the second acquisition unit does not acquire the second position information. A signal to wake up the positioning function may be transmitted to at least one of the following.

The information processing method according to the second aspect of the present invention includes first position information indicating the position of the first device measured by the first device based on signals transmitted by one or more positioning satellites, which is executed by a computer. the second position determined based on a second signal that is a signal communicated between a second device associated with the first device and a plurality of third devices provided in the facility; a step of acquiring second location information indicating the location of the device; and a function related to positioning of the first location information that the first device has, based on the acquisition status of the first location information and the second location information. a step of transmitting to a device having a positioning function to put to sleep a signal for putting at least one of a first positioning function and a second positioning function, which is a function related to positioning of the second position information of the second device, to sleep; , has.

Advantageous Effects of Invention According to the present invention, it is possible to perform positioning regardless of whether inside or outside a facility, and it is also possible to suppress power consumption of a device that performs positioning.

FIG. 1 is a diagram illustrating an overview of a positioning system. FIG. 3 is a diagram showing a functional configuration of a first device. It is a diagram showing the functional configuration of a positioning server. 1 is a diagram showing a functional configuration of an information processing device. It is a figure showing an example of related device information. 2 is a flowchart showing the flow of processing related to sleep control and transmission of location information in the information processing device. 7 is a flowchart following the flowchart shown in FIG. 6.

[Overview of positioning system S]
FIG. 1 is a diagram illustrating an overview of the positioning system S. The positioning system S is a system for positioning the user's position. The positioning system S includes a first device 1 and a second device 2 worn by a user, a plurality of third devices 3, a positioning server 4, and an information processing device 5.

The first device 1 is a device that can perform positioning using GNSS, and is a device that performs positioning based on signals transmitted by one or more positioning satellites. The first device 1 transmits first position information indicating the measured position of the first device 1 to the information processing apparatus 5.

The second device 2 is a device that transmits a signal related to short-range wireless communication, and is, for example, a Bluetooth tag that transmits a Bluetooth Low Energy (hereinafter simply referred to as "Bluetooth") signal. The second device 2 includes a device ID (Identification) as device identification information for identifying the second device 2, and transmits a signal that can be received by a third device 3 as a Bluetooth receiver within a predetermined range from itself. do. A plurality of third devices 3 are provided in locations where the first device 1 cannot receive signals from positioning satellites, for example, inside a facility. The third device 3 receives a signal transmitted by the second device 2 located within a predetermined range from its own position. The third device 3 specifies the radio wave condition of the signal received from the second device 2, and transmits radio wave condition information indicating the specified radio wave condition to the positioning server 4.

The positioning server 4 is a server that measures the position of the second device 2 based on the radio wave condition indicated by the radio wave condition information received from the plurality of third devices 3. The positioning server 4 transmits second position information indicating the measured position of the second device 2 to the information processing device 5.

The information processing device 5 is, for example, a server, and acquires first position information from the first device 1 and acquires second position information from the positioning server 4. The information processing device 5 transmits at least one of the first location information and the second location information to a user terminal 6 such as a smartphone running an application using the location information. By doing so, the information processing apparatus 5 can obtain the second position indicating the position of the second device 2 even in a situation where the first device 1 cannot perform positioning and cannot acquire the first position information. Based on the information, functions related to positioning can continue to be performed.

Further, the information processing device 5 transmits a signal to the first device 1 to put the function related to positioning of the first location information, which the first device 1 has, to sleep based on the acquisition status of the first location information and the second location information. do. For example, when the first location information cannot be acquired, the information processing device 5 transmits to the first device 1 a signal that causes the function related to positioning of the first location information to go to sleep. By doing so, the information processing apparatus 5 can suppress the power consumption of the first device 1.

[Functional configuration of first device 1]
Next, the configurations of the first device 1, the positioning server 4, and the information processing device 5 included in the positioning system S will be described. First, the configuration of the first device 1 will be explained. FIG. 2 is a diagram showing the functional configuration of the first device 1. As shown in FIG. The first device 1 includes a receiving section 11 , a communication section 12 , a storage section 13 , and a control section 14 .

The receiving unit 11 is a module that receives signals transmitted by one or more positioning satellites.
The communication unit 12 is a communication interface for transmitting and receiving data to and from an external device via a communication network such as a mobile phone line, the Internet, or a wireless LAN.

The storage unit 13 is a storage medium that stores various data, and includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like. The storage unit 13 stores programs executed by the control unit 14. The storage unit 13 stores a program that causes the control unit 14 to function as an assist unit 141, a positioning unit 142 as a first positioning function, a position information transmitting unit 143, and a sleep control unit 144.

The control unit 14 is, for example, a CPU (Central Processing Unit). The control unit 14 functions as an assist unit 141 , a positioning unit 142 , a position information transmitting unit 143 , and a sleep control unit 144 by executing a program stored in the storage unit 13 .

The assist unit 141 receives assist position information for assisting positioning by the positioning unit 142 from the information processing device 5 via the communication unit 12 . The assist unit 141 inputs the received assist position information to the positioning unit 142. The assist position information is, for example, position information that indicates a position corresponding to the position of the second device 2 and is used to assist the position measurement unit 142 in positioning the position information. For example, the assist position information is position information that is determined based on the positions of a plurality of third devices 3 that communicate with the second device 2 and indicates a position near the entrance of a facility where the third device 3 is installed. It is.

The positioning unit 142 performs positioning based on signals received by the receiving unit 11 from one or more positioning satellites. Specifically, first, the positioning unit 142 extracts the orbit information of the positioning satellite from the signal received from each of the positioning satellites, and specifies the position of each of the positioning satellites based on the orbit information. The positioning unit 142 calculates the distance between each of the plurality of positioning satellites and the first device 1 based on the time from the time when a signal is transmitted from the plurality of positioning satellites until the receiving unit 11 receives the signal. The positioning unit 142 calculates the position of the first device 1 based on the distance between each of the plurality of positioning satellites and the first device 1 and the identified positions of the plurality of positioning satellites.

The positioning unit 142 transmits position information indicating the calculated position to a server (not shown) that provides correction information for correcting errors in the position measured using GNSS, and receives the correction information from the server. receive. The positioning unit 142 generates first position information indicating the position of the first device 1 by correcting the position of the first device 1 based on the correction information. Here, the first location information is, for example, information indicating the latitude and longitude corresponding to the location of the first device 1.

Here, when the positioning unit 142 cancels its own sleep, it needs to receive the signals transmitted by the positioning satellite for a certain period of time from the time of cancellation, and it takes time to extract the orbit information. As a result, it takes time to calculate position information. On the other hand, the positioning unit 142 sets the position indicated by the assist position information acquired by the assist unit 141 when the sleep mode is canceled as the position of the first device 1 . Then, the positioning unit 142 transmits the assist position information to a server that provides correction information, and corrects the correction information received from the server and the assist position information to obtain a first position indicating the position of the first device 1. Generate information. By doing so, the first device 1 can calculate its own position early after sleep is canceled.

The position information transmitting unit 143 sends the first position information indicating the position of the first device 1 generated by the positioning unit 142 and the device ID for identifying the first device 1 to the information processing apparatus via the communication unit 12. Send to 5. Specifically, the location information transmitting unit 143 includes first location information, the device ID of the first device 1, and reception status information indicating the reception status of the signal when the signal is received from one or more positioning satellites. The first positioning related information including the information is transmitted to the information processing device 5. Here, the reception status information indicates the reception status corresponding to the signals received from one or more positioning satellites used to calculate the first position information. The reception status information includes the number of captured positioning satellites, the received radio field strength of the radio waves corresponding to the signals received from each of the one or more positioning satellites, and orbit information for calculating the position of each of the one or more positioning satellites. There is.

When the sleep control unit 144 receives a sleep instruction signal that instructs the positioning unit 142 to go to sleep from the information processing device 5 via the communication unit 12, it causes the positioning unit 142 to go to sleep. Further, the sleep control unit 144 receives a sleep cancellation signal for canceling the sleep state of the positioning unit 142 from the information processing device 5 via the communication unit 12 . The sleep control unit 144 cancels the sleep state of the positioning unit 142 when the positioning unit 142 is in the sleep state when receiving the sleep release signal.

[Functional configuration of positioning server 4]
Next, the configuration of the positioning server 4 will be explained. FIG. 3 is a diagram showing the functional configuration of the positioning server 4. The positioning server 4 includes a communication section 41, a storage section 42, and a control section 43.

The communication unit 41 is a communication interface for transmitting and receiving data to and from external devices such as the third device 3 and the information processing device 5 via a communication network such as a mobile phone line, the Internet, and a wireless LAN.
The storage unit 42 is a storage medium that stores various data, and includes a ROM, a RAM, a hard disk, and the like. The storage unit 42 stores programs executed by the control unit 43. The storage unit 42 stores a program that causes the control unit 43 to function as an acquisition unit 431, a positioning unit 432, and a position information transmission unit 433.

The control unit 43 is, for example, a CPU. The control unit 43 functions as an acquisition unit 431, a positioning unit 432, and a position information transmission unit 433 by executing a program stored in the storage unit 42.

The acquisition unit 431 acquires, from each of the plurality of third devices 3 provided in the facility, the device ID of the third device 3 and the signal received by the third device 3 from the second device 2 located within a predetermined range. Reception result information including received radio wave status information indicating the received radio wave status and the device ID of the second device 2 included in the signal received from the second device 2 is acquired. The received radio wave condition is, for example, the received radio wave strength at the third device 3 of the radio wave corresponding to the signal when the third device 3 receives the signal from the second device 2, the third radio wave intensity of the radio wave transmitted by the second device 2, etc. This is the arrival angle of the received radio wave indicating the angle of incidence at the device 3.

The positioning unit 432 calculates the position of the second device 2 based on the received radio wave condition indicated by the received radio wave condition information corresponding to the second device 2 received within a predetermined time from each of the plurality of third devices 3. . For example, the storage unit 42 stores the device ID of the third device 3 and installation position information indicating the installation position of the third device 3 in association with each other. The positioning unit 432 identifies a plurality of pieces of reception result information having the same second device ID from among a plurality of pieces of reception result information received within a predetermined time, and identifies a third device included in each of the specified pieces of reception result information. Identify the ID.

The positioning unit 432 specifies the installation position of each of the plurality of third devices 3 by specifying the installation position information associated with the device ID of each of the plurality of third devices 3. The positioning unit 432 selects the plurality of specified third devices 3 based on the installation position of each of the plurality of specified third devices 3 and the plurality of received radio wave conditions indicated by the received radio wave condition information included in each of the plurality of specified reception result information. The position of the second device 2 corresponding to the device ID of the second device 2 included in the reception result information is calculated.

For example, when the second device 2 transmits a signal to each of the specified installation positions of the plurality of third devices 3, the positioning unit 432 transmits the received radio waves indicated by the received radio wave status information corresponding to the third device 3. Calculate the distance that will be the strength. A position that satisfies the distance calculated with respect to each of the specified installation positions of the plurality of third devices 3 is calculated as the position of the second device 2 . Here, the second location information indicating the location of the second device is, for example, information indicating the facility ID that identifies the facility and the relative position from the reference location in the facility, but is not limited to this. 2 may be information indicating the latitude and longitude corresponding to the location of the device 2.

The location information transmitting unit 433 includes, via the communication unit 41, second location information indicating the position of the second device 2 calculated by the positioning unit 432, the device ID of the second device 2, and received radio wave status information. The second positioning related information is transmitted to the information processing device 5. Here, the received radio wave status information is received radio wave status information included in the reception result information used to calculate the position of the second device 2, and also includes the device ID of the third device 3.

[Functional configuration of information processing device 5]
Next, the configuration of the information processing device 5 will be explained. FIG. 4 is a diagram showing the functional configuration of the information processing device 5. As shown in FIG. The information processing device 5 includes a communication section 51, a storage section 52, and a control section 53.

The communication unit 51 is a communication interface for transmitting and receiving data to and from external devices such as the first device 1, the positioning server 4, and the user terminal 6 via a communication network such as a mobile phone line, the Internet, and a wireless LAN.

The storage unit 52 is a storage medium that stores various data, and includes a ROM, a RAM, a hard disk, and the like. The storage unit 52 stores programs executed by the control unit 53. The storage unit 52 stores a program that causes the control unit 53 to function as a first acquisition unit 531, a second acquisition unit 532, a sleep control unit 533, and a position information transmission unit 534.

The storage unit 52 also stores related device information that associates a user ID for identifying a user, the device ID of the first device 1 worn by the user, and the device ID of the second device 2. . FIG. 5 is a diagram illustrating an example of related device information. As shown in FIG. 5, it can be confirmed that the user ID, the device ID of the first device 1, and the device ID of the second device 2 are stored in association with each other.

The control unit 53 is, for example, a CPU. The control unit 53 functions as a first acquisition unit 531, a second acquisition unit 532, a sleep control unit 533, and a position information transmission unit 534 by executing a program stored in the storage unit 52.

[Obtain location information]
Next, details of the functions of the control section 53 will be explained. First, details of the first acquisition section 531 and the second acquisition section 532, which are the functions of the control section 53 related to acquisition of position information, will be described.

The first acquisition unit 531 acquires first position information indicating the position of the first device 1 measured by the first device 1 based on signals transmitted by one or more positioning satellites. Further, the first acquisition unit 531 acquires reception status information indicating the reception status of a signal when the first device 1 receives a signal from one or more positioning satellites.

For example, the first acquisition unit 531 receives, from the first device 1, the device ID of the first device 1, the first location information, and the reception status corresponding to the signal used by the first device 1 to generate the first location information. The first positioning related information including the first positioning information is obtained.

The second acquisition unit 532 performs positioning based on a second signal that is a signal communicated between the second device 2 associated with the first device 1 and a plurality of third devices 3 provided in the facility. 2nd location information indicating the location of the second device 2 is acquired. The second acquisition unit 532 is configured to receive signals indicating reception radio wave conditions of radio waves corresponding to signals communicated between the second device 2 and the plurality of third devices 3 in the second device 2 or the plurality of third devices 3. Obtain radio wave status information.

For example, the second acquisition unit 532 acquires, from the positioning server 4, the device ID of the second device 2, the second location information, and the second device 2 and the plurality of third devices used to generate the second location information. second positioning-related information including received radio wave status information corresponding to the signal communicated with the second positioning-related information.

[Sleep control of first device 1]
Next, details of the sleep control unit 533 that controls sleep of the positioning function of the first device 1 will be described.

When the sleep control unit 533 receives the first positioning-related information or the second positioning-related information, the sleep control unit 533 determines the device ID of the first device 1 or the second device 2 included in the received first positioning-related information or second positioning-related information. Identify the device ID. When the sleep control unit 533 refers to the related device information stored in the storage unit 52 and identifies the device ID of the first device 1, the sleep control unit 533 identifies the device ID of the second device 2 associated with the device ID. When the device ID of the second device 2 is specified, the device ID of the first device 1 associated with the device ID is specified.

The sleep control unit 533 determines the first location information that the first device 1 has based on the acquisition status of the first location information corresponding to the identified first device 1 and the second location information corresponding to the identified second device 2. A sleep instruction signal is transmitted to the first device 1 to put the positioning unit 142, which is a function related to positioning, into sleep mode.

Specifically, when the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 acquires the second position information, the sleep control unit 533 controls the sleep control unit 533 in response to satisfying a predetermined condition. and transmits a sleep instruction signal to the first device 1. More specifically, if the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 acquires the second position information within a predetermined time, the sleep control unit 533 performs the first acquisition. The sleep instruction signal is transmitted to the first device 1 based on the reception status indicated by the reception status information acquired by the unit 531 . The predetermined time is, for example, determined by the positioning interval between the first device 1 and the positioning server 4, and is, for example, 10 seconds.

For example, the sleep control unit 533 controls the number of captured positioning satellites indicated by the reception status information included in the first positioning-related information acquired by the first acquisition unit 531, and the received radio waves corresponding to the signals received from each of the one or more positioning satellites. First positioning accuracy, which is the accuracy of the first position information, is specified based on at least one of the intensity and the position of the positioning satellite indicated by the orbit information.

For example, the number of captured positioning satellites, the received radio wave intensity received from each of one or more positioning satellites, and the first positioning accuracy are associated in advance and stored in the storage unit 52 as first accuracy specifying information. The sleep control unit 533 refers to the first accuracy specifying information and determines the first accuracy corresponding to the number of captured positioning satellites indicated by the reception status information and the received radio wave intensity corresponding to the signal received from each of the one or more positioning satellites. Determine positioning accuracy. The sleep control unit 533 transmits a sleep instruction signal to the first device 1 on the condition that the identified first positioning accuracy is less than or equal to the first threshold.

Note that although the sleep control unit 533 transmits the sleep instruction signal to the first device 1 on the condition that the first positioning accuracy is equal to or less than a predetermined threshold, the present invention is not limited to this. The sleep control unit 533 determines that the number of acquisitions is less than a predetermined number of acquisitions, and that the received radio wave intensity corresponding to the signal received from the positioning satellite includes one that is less than a predetermined threshold. As a condition, a sleep instruction signal may be transmitted to the first device 1. If the first positioning accuracy is low, it is considered that the user wearing the first device 1 has moved from outdoors to inside a facility where signals from positioning satellites are difficult to receive. In such a case, the information processing device 5 can put the positioning unit 142 of the first device 1 to sleep, and thus can suppress the power consumption of the first device 1.

In addition, if the second acquisition unit 532 acquires the second position information and the first acquisition unit 531 does not acquire the first position information, the sleep control unit 533 controls the received radio wave status acquired by the second acquisition unit 532. Based on the received radio wave condition indicated by the information, it is controlled whether or not to transmit a sleep cancellation signal for canceling sleep of the positioning unit 142 to the first device 1 .

For example, if the second acquisition unit 532 acquires the second position information and the first acquisition unit 531 does not acquire the first position information, the sleep control unit 533 controls the received radio wave status acquired by the second acquisition unit 532. At least one of the received radio wave intensity of the signal received by each of the plurality of third devices 3 from the second device and the arrival angle of the radio wave indicating the signal received by each of the plurality of third devices 3 from the second device, which information indicates. The second positioning accuracy, which is the accuracy of the second position information, is determined based on the second location information.

For example, the sleep control unit 533 determines the proportion of signals whose received radio field strength is less than a predetermined radio field strength among the signals that each of the plurality of third devices 3 receives from the second device, and the ratio of signals that each of the plurality of third devices 3 receives from the second device. The second positioning accuracy is calculated based on the ratio of signals whose arrival angle of radio waves falls within a predetermined angular range among the signals received from the second device. For example, the sleep control unit 533 controls the second positioning accuracy to decrease as the proportion of signals whose received radio field strength is less than a predetermined radio field strength and the proportion of signals whose arrival angle of radio waves falls within a predetermined angle range are lower. Then, the second positioning accuracy is calculated.

The sleep control unit 533 then transmits a sleep cancellation signal to the first device on the condition that the second positioning accuracy is less than or equal to the second threshold. Here, the predetermined angular range is a range of incidence angles of radio waves at which it is difficult for the third device 3 to receive radio waves, that is, an angular range larger than the predetermined angle. If the second positioning accuracy is low, it is considered that the user has moved away from the installation position of the third device 3, that is, has moved to the outside of the facility. In such a case, the information processing device 5 can cause the positioning section 142 of the first device 1 to wake up and cause the first device 1 to resume positioning.

In addition, when transmitting a sleep cancel signal to the first device based on the received radio wave condition, the sleep control unit 533 performs positioning based on the position indicated by the position information of the second device 2, and assist position information to assist the first device 1. The sleep control unit 533 transmits to the first device 1 assist position information indicating a predetermined position based on the positions of the plurality of third devices that communicate with the second device 2 .

For example, the predetermined position based on the positions of the plurality of third devices 3 is a position near the entrance of a facility where the plurality of third devices are installed. The storage unit 52 stores device IDs of a plurality of related third devices 3 placed in the same facility and assist position information in association with each other. The sleep control unit 533 refers to the storage unit 52 and specifies assist position information associated with the device ID of the third device 3 included in the second positioning related information. When transmitting a sleep cancellation signal to the first device based on the received radio wave condition, the sleep control unit 533 transmits the identified assist position information to the first device 1 together with the sleep cancellation signal.

In addition, the sleep control unit 533 causes the first device 1 to transmit the positioning unit 142 to the first device 1 when the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 does not acquire the second position information. Send wake signal. In such a case, it is considered that the user is far from the installation position of the third device 3 and is located in a place where it is difficult to obtain the first position information. In such a case, the information processing device 5 can cause the positioning section 142 of the first device 1 to wake up and cause the first device 1 to resume positioning.

In addition, the sleep control unit 533 transmits a sleep cancellation signal to the first device 1 in which the first acquisition unit 531 did not acquire the first position information and the second acquisition unit 532 did not acquire the second position information. At the same time, assist position information corresponding to the most recently acquired second position information may be transmitted to the first device 1. By doing so, the information processing apparatus 5 can quickly measure the first position information in the first device 1 after the first device 1 wakes up from sleep.

[Send location information]
Next, details of the location information transmitter 534, which is a function related to transmitting location information, will be explained.
The position information transmitting unit 534 transmits at least one of the first position information acquired by the first acquisition unit 531 and the second position information acquired by the second acquisition unit 532 to the user terminal 6 via the communication unit 51. Send.

The location information transmitter 534 receives from the user terminal 6 a request to obtain location information including the user ID. Upon receiving the location information acquisition request, the location information transmitting unit 534 refers to the related device information stored in the storage unit 52 and selects the device of the first device 1 associated with the user ID included in the acquisition request. ID and the device ID of the second device 2. The location information transmitter 534 transmits the first location based on the acquisition status of first location information indicating the location of the first device 1 indicated by the specified device ID and second location information indicating the location of the second device 2. information or second location information to the user terminal 6.

For example, when the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 acquires the second position information, the position information transmission unit 534 transmits the second position information when a predetermined condition is met. The information is transmitted to the user terminal 6, and if a predetermined condition is not satisfied, the first location information is transmitted to the user terminal 6. Here, the predetermined condition is the same as the condition used for determining whether or not the sleep control unit 533 transmits a sleep instruction signal to the first device 1, and specifically, the predetermined condition is such that the first positioning accuracy is equal to or less than the first threshold value. The following shall apply.

The position information transmitter 534 transmits the second position information to the user terminal 6 when the first acquirer 531 does not acquire the first position information and the second acquirer 532 acquires the second position information. Further, if the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 does not acquire the second position information, the position information transmitting unit 534 transmits the first position information to the user terminal 6. do.

If the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 does not acquire the second position information, the position information transmitting unit 534 sends error information indicating that the position information cannot be acquired. It is transmitted to the user terminal 6. Note that if the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 does not acquire the second position information, the position information transmitting unit 534 transmits the most recently acquired first position information or The second location information may be transmitted to the user terminal 6.

The location information transmitter 534 may transmit information indicating the movement status of the user to the user terminal 6 along with the location information. For example, when the first acquisition unit 531 acquires the first location information and the second acquisition unit 532 acquires the second location information, if the first positioning accuracy exceeds the first threshold, the user There is a high probability that it moved from inside the facility to outside the facility. Therefore, when the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 acquires the second position information, the position information transmission unit 534 determines that the first positioning accuracy exceeds the first threshold value. If the limit is exceeded, information indicating that the user has moved from inside the facility to outside the facility is transmitted to the user terminal 6.

Further, when the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 acquires the second position information, if the first positioning accuracy is less than or equal to the first threshold, the user is outside the facility. There is a high probability that the person moved from the facility to the inside of the facility. Therefore, when the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 acquires the second position information, the position information transmission unit 534 determines that the first positioning accuracy is equal to or less than the first threshold. At this time, information indicating that the user has moved from outside the facility to inside the facility is transmitted to the user terminal 6.

Further, when the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 acquires the second position information, and the second positioning accuracy is less than or equal to the second threshold, the user There is a high probability that it is just before moving from inside the facility to the outside of the facility. Therefore, when the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 acquires the second position information, the position information transmitting unit 534 determines that the second positioning accuracy is equal to or less than the second threshold. In the following cases, information indicating that the user has moved from inside the facility to inside the facility and near the entrance/exit of the facility is transmitted to the user terminal 6.

Further, when the first acquisition unit 531 does not acquire the first location information and the second acquisition unit 532 acquires the second location information, and the second positioning accuracy exceeds the second threshold, the user Information indicating that the user is inside is transmitted to the user terminal 6. Further, when the first acquisition unit 531 acquires the first location information and the second acquisition unit 532 does not acquire the second location information, information indicating that the user is outside the facility is sent to the user terminal 6. Send. By doing so, for example, when providing different content to the user on the user terminal 6 based on whether or not the user is inside the facility, it is possible to provide appropriate content based on the user's movement status. .

Note that although the location information transmitting unit 534 transmits the first location information or the second location information to the user terminal 6 based on the acquisition status of the first location information and the second location information, the present invention is not limited to this. The location information transmitter 534 may transmit the first location information and the second location information to the user terminal 6 in association with the time when these location information were acquired.

[Operation flow]
Next, the flow of processing related to sleep control of the information processing device 5 and transmission of position information will be described. FIG. 6 is a flowchart showing the flow of processing related to sleep control and transmission of position information in the information processing device 5. FIG. 7 is a flowchart following the flowchart shown in FIG. It is assumed that the processing according to this flowchart is executed at predetermined intervals.

First, the sleep control unit 533 determines whether the second acquisition unit 532 has acquired the second position information within a predetermined time period from the timing at which the position information acquisition request was acquired (S1). If the sleep control unit 533 determines that the second acquisition unit 532 has acquired the second position information (YES in S1), the sleep control unit 533 moves the process to S2 and determines that the second acquisition unit 532 has not acquired the second position information. If determined (NO in S1), the process moves to S10.

In S2, the sleep control unit 533 determines whether the first acquisition unit 531 has acquired the first position information within a predetermined time period from the timing at which the position information acquisition request was acquired. If the sleep control unit 533 determines that the first acquisition unit 531 has acquired the first position information (YES in S2), the sleep control unit 533 moves the process to S3 and determines that the first acquisition unit 531 has not acquired the first position information. If determined (NO in S2), the process moves to S7.

In S3, the sleep control unit 533 calculates the first positioning accuracy based on the reception status information included in the first positioning related information acquired by the first acquisition unit 531, and the calculated first positioning accuracy is the first threshold value. Determine whether or not it exceeds. If the sleep control unit 533 determines that the first positioning accuracy exceeds the first threshold (YES in S3), it moves the process to S4, and if it determines that the first positioning accuracy is less than or equal to the first threshold (YES in S3), the sleep control unit 533 moves the process to S4. NO), the process moves to S5.

In S4, the location information transmitter 534 transmits the first location information to the user terminal 6.
In S5, the sleep control unit 533 transmits a sleep instruction signal to the first device 1. After that, the location information transmitter 534 transmits the second location information to the user terminal 6 (S6). Note that the process related to S5 and the process related to S6 may be executed in the reverse order or may be executed in parallel.

In S7, the sleep control unit 533 calculates the second positioning accuracy based on the received radio wave condition information included in the second positioning-related information acquired by the second acquisition unit 532, and determines that the calculated second positioning accuracy is the second positioning accuracy. Determine whether the threshold value is exceeded. If the sleep control unit 533 determines that the second positioning accuracy exceeds the second threshold (YES in S7), the sleep control unit 533 moves the process to S9, and if it determines that the second positioning accuracy is less than or equal to the second threshold (YES in S7), the sleep control unit 533 moves the process to S9. NO), the process moves to S8.

In S8, the sleep control unit 533 transmits a sleep cancellation signal and assist position information to the first device 1. After that, the location information transmitting unit 534 transmits the second location information to the user terminal 6 (S9). Note that the process related to S8 and the process related to S9 may be executed in the reverse order or may be executed in parallel.

The explanation will be moved to FIG. In S10, the sleep control unit 533 determines whether the first acquisition unit 531 has acquired the first position information within a predetermined time period from the timing at which the position information acquisition request was acquired. If the sleep control unit 533 determines that the first acquisition unit 531 has acquired the first position information (YES in S10), the sleep control unit 533 moves the process to S11 and determines that the first acquisition unit 531 has not acquired the first position information. If determined (NO in S10), the process moves to S12.

In S11, the location information transmitter 534 transmits the first location information to the user terminal 6.
In S12, the sleep control unit 533 transmits a sleep release signal to the first device 1.

[Modification 1]
Note that in the above-described embodiment, the second device 2 is a Bluetooth tag, but is not limited to this. For example, if the user terminal 6 is compatible with Bluetooth, the user terminal 6 may function as the second device 2.

When the user terminal 6 can put the second positioning function, which is a function of transmitting a signal corresponding to Bluetooth, to sleep, the sleep control unit 533 performs the following operations based on the acquisition status of the first position information and the second position information. The first device 1 and the user terminal 6 send a sleep instruction signal to sleep at least one of the positioning unit 142 as the first positioning function of the first device 1 and the second positioning function of the user terminal 6 as the second device. The information may be sent to at least one of the following.

For example, the sleep control unit 533 puts the second positioning function of the user terminal 6 to sleep when the first acquisition unit 531 acquires the first position information and the second acquisition unit 532 does not acquire the second position information. A sleep instruction signal to cause the user terminal 6 to sleep is transmitted to the user terminal 6. If the first acquisition unit 531 acquires the first location information and the second acquisition unit 532 does not acquire the second location information, it is difficult for the third device to receive the signal corresponding to Bluetooth transmitted by the user terminal 6. It is thought that the patient has moved to a location outside the facility. In such a case, the information processing device 5 can put the second positioning function of the user terminal 6 as the second device to sleep, so that the power consumption of the user terminal 6 can be suppressed.

Furthermore, when the first acquisition section 531 does not acquire the first position information and the second acquisition section 532 does not acquire the second position information, the sleep control section 533 controls the sleep control section 533 as the first device 1 and the second device. A sleep cancel signal for canceling sleep of the positioning function may be transmitted to at least one of the user terminals 6 of.

If the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 does not acquire the second position information, the positioning unit 142 of the first device 1 and the second positioning function of the second device Both may not be running. Therefore, the sleep control unit 533 controls the first device 1 and the user terminal 6 when the first acquisition unit 531 does not acquire the first position information and the second acquisition unit 532 does not acquire the second position information. The wake-up signal may be sent to both. By doing this, when there is a possibility that both the positioning unit 142 of the first device 1 and the second positioning function of the second device are not activated, the positioning function sleep is canceled and the positioning function is You can start acquiring.

[Modification 2]
Further, in the above embodiment, the positioning server 4 calculates the second position information based on the reception result information received from each of the plurality of third devices 3 that received the signal transmitted by the second device 2. Not limited to. When the user terminal 6 functions as a second device, the user terminal 6 receives the received radio wave condition when receiving the signal transmitted by each of the plurality of third devices 3, the device ID of the plurality of third devices 3, and the user The reception result information including the device ID of the terminal 6 may be transmitted to the positioning server 4. In this case, the reception result information includes, as information indicating the received radio wave condition, for example, the received radio wave intensity at the user terminal 6 of the radio wave corresponding to the signal when the user terminal 6 receives the signal from the third device 3. information, information indicating the radiation angle of the signal indicating the direction of transmission of the signal when the user terminal 6 receives the signal transmitted by the third device 3. Then, the positioning server 4 calculates second position information based on the reception result information received from the user terminal 6.

[Modification 3]
Further, in the above-described embodiment, the position of the second device is determined using Bluetooth, but the present invention is not limited thereto. The second device may measure the position of the second device using Wi-Fi (registered trademark), near field communication (NFC), or ultra wide band (UWB).

[Effects of information processing device 5]
As described above, the information processing device 5 according to the present embodiment receives first position information indicating the position of the first device 1 determined by the first device 1 based on signals transmitted by one or more positioning satellites. A second device whose position is determined based on a second signal that is acquired and communicated between a second device 2 associated with the first device 1 and a plurality of third devices 3 provided in the facility. Second position information indicating the position of No. 2 is obtained. Then, the information processing device 5 sends a signal to sleep the first positioning function, which is a function related to positioning of the first position information, which the first device 1 has, based on the acquisition status of the first position information and the second position information. Transmit to the first device 1. By doing so, the information processing device 5 can suppress the power consumption of the device that performs positioning while enabling positioning regardless of whether it is inside or outside the facility.

Furthermore, the present invention makes it possible to contribute to Goal 9 of the Sustainable Development Goals (SDGs) led by the United Nations, "Create a foundation for industry and technological innovation."

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist. be. For example, all or part of the device can be functionally or physically distributed and integrated into arbitrary units. In addition, new embodiments created by arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiment resulting from the combination have the effects of the original embodiment.

1 First device 11 Receiving section 12 Communication section 13 Storage section 14 Control section 141 Assist section 142 Positioning section 143 Location information transmission section 144 Sleep control section 2 Second device 3 Third device 4 Positioning server 41 Communication section 42 Storage section 43 Control Unit 431 Acquisition unit 432 Positioning unit 433 Location information transmission unit 5 Information processing device 51 Communication unit 52 Storage unit 53 Control unit 531 First acquisition unit 532 Second acquisition unit 533 Sleep control unit 534 Location information transmission unit 6 User terminal

Claims (7)

a first acquisition unit that acquires first position information indicating the position of the first device measured by the first device based on signals transmitted by one or more positioning satellites;
A second signal that is a signal communicated between a second device associated with the first device and a plurality of third devices provided inside a facility where the first device cannot receive signals from the positioning satellite. obtaining second position information indicating the position of the second device determined based on the signal, and providing information between the second device and the plurality of third devices in the second device or the plurality of third devices; a second acquisition unit that acquires received radio wave status information indicating the received radio wave status of the radio waves corresponding to the signal communicated with ;
Based on the acquisition status of the first location information and the second location information, a signal is sent to the first device to put to sleep a first positioning function that is a function related to positioning of the first location information that the first device has. and the first positioning function is asleep, the second acquisition unit acquires the second position information, and the first acquisition unit does not acquire the first position information , When transmitting a sleep cancel signal that causes the first device to cancel the sleep of the first positioning function based on the received radio wave condition indicated by the received radio wave status information acquired by the second acquisition unit , the sleep cancel Indicates, along with the signal, a position corresponding to an entrance/exit of the facility that corresponds to the position indicated by the position information of the second device and is determined based on the positions of the plurality of third devices that communicate with the second device. , a sleep control unit that transmits assist position information that assists positioning of the first position information by the first positioning function to the first device;
An information processing device having: The sleep control unit is configured to control the sleep control unit, in response to satisfying a predetermined condition, when the first acquisition unit acquires the first position information and the second acquisition unit acquires the second position information. transmitting a signal to the first device to put the first positioning function to sleep;
The information processing device according to claim 1. The first acquisition unit acquires reception status information indicating a reception status of a signal when the first device receives a signal from the one or more positioning satellites,
The sleep control unit is configured to control the reception status information acquired by the first acquisition unit when the first acquisition unit acquires the first position information and the second acquisition unit acquires the second position information. transmitting a signal to the first device to put the first positioning function to sleep based on the reception status indicated by;
The information processing device according to claim 2. In the case where the sleep control unit is configured such that the first positioning function is in sleep mode, the second acquisition unit acquires the second position information, and the first acquisition unit does not acquire the first position information. , specifying the accuracy of the second location information based on the reception radio wave situation indicated by the reception radio wave situation information acquired by the second acquisition unit, and the accuracy of the identified second location information is less than or equal to a predetermined threshold. transmitting the wake signal and the assist position information to the first device;
The information processing device according to claim 1. The sleep control unit is configured to control the second position of the second device when the first acquisition unit acquires the first position information and the second acquisition unit does not acquire the second position information. transmitting a signal to the second device to put a second positioning function, which is a function related to positioning of information, to sleep;
The information processing device according to any one of claims 1 to 4 . The sleep control unit controls the first device and the second device when the first acquisition unit does not acquire the first position information and the second acquisition unit does not acquire the second position information. transmitting a signal to wake up the positioning function to at least one of the
The information processing device according to any one of claims 1 to 4 . computer executes
acquiring first position information indicating the position of the first device measured by the first device based on signals transmitted by one or more positioning satellites;
A second signal that is a signal communicated between a second device associated with the first device and a plurality of third devices provided inside a facility where the first device cannot receive signals from the positioning satellite. obtaining second position information indicating the position of the second device determined based on the signal, and providing information between the second device and the plurality of third devices in the second device or the plurality of third devices; obtaining received radio wave status information indicating the received radio wave status of the radio waves corresponding to the signal communicated with ;
Based on the acquisition status of the first location information and the second location information, a signal is sent to the first device to put to sleep a first positioning function that is a function related to positioning of the first location information that the first device has. the step of sending;
When the first positioning function is asleep and the second position information is acquired but the first position information is not acquired, based on the received radio wave situation indicated by the acquired received radio wave situation information. , when transmitting a sleep wake-up signal that causes the first positioning function to wake up to the first device, the second device transmits a sleep wake-up signal corresponding to the position indicated by the position information of the second device together with the sleep wake-up signal. assist position information that indicates a position corresponding to an entrance/exit of the facility that is determined based on the positions of the plurality of third devices that communicate with the third device, and assists positioning of the first position information by the first positioning function. transmitting to the first device;
An information processing method having

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