JP7192183B2 - Mobile wireless terminal and positioning system - Google Patents

Description

The present invention relates to portable wireless terminals and positioning systems.

2. Description of the Related Art A wireless tag device is known that is used by being attached to a package or the like, and notifies the communication terminal such as a smartphone owned by the user when the package or the like is separated from the communication terminal.

The wireless tag device described in Patent Literature 1 starts supplying power to its own network communication unit when short-range wireless communication with a communication terminal carried by a user is disconnected. By supplying power to the network communication unit, the location information of the wireless tag device is transmitted to the communication terminal via the network.

JP 2017-97750 A

However, the wireless tag device described in Patent Document 1 is not set in consideration of the state of the object to which it is attached, the environment, etc., and depending on the state of the object, the environment, etc., the wireless tag device may There is a problem that power consumption increases excessively.

In order to solve the above problems, a mobile wireless terminal according to a preferred aspect of the present invention includes a receiving unit for receiving a position specifying signal for specifying a position; a radio communication unit that communicates with a communication terminal via a mobile communication network; a control unit that controls the operation of a communication unit and causes the wireless communication unit to transmit information regarding the position of the portable wireless terminal to the mobile communication network, wherein the control unit transmits the position specifying signal. If it cannot be received, the interval at which the call signal is received by the wireless communication unit is made shorter than when the position specifying signal can be received, and if the position specifying signal can be received, and if the position specifying signal cannot be received. Alternatively, the radio communication unit is made to stop receiving the call signal.
Further, a mobile wireless terminal according to a preferred aspect of the present invention includes a receiver for receiving a position specifying signal for specifying a position, a detector for detecting a moving speed of the mobile wireless terminal, and a mobile communication network. a wireless communication unit that communicates with a communication terminal via a wireless communication unit, and the operation of the wireless communication unit regarding reception of a call signal transmitted from the mobile communication network according to the type of object to which the portable wireless terminal is attached and the purpose of use and causing the wireless communication unit to transmit information about the position of the portable wireless terminal to the mobile communication network.
Further, a mobile wireless terminal according to a preferred aspect of the present invention includes a receiver for receiving a position specifying signal for specifying a position, a detector for detecting a moving speed of the mobile wireless terminal, and a mobile communication network. a wireless communication unit that communicates with a communication terminal via a wireless communication unit; a control unit that transmits information about the location of the mobile wireless terminal to the wireless communication unit; The control unit determines whether the short-range wireless communication with the communication terminal transitions from connection to disconnection, or when the reception strength of the beacon signal output from the communication terminal reaches a predetermined value. When transitioning from a state exceeding the predetermined value to a state equal to or less than the predetermined value, the operation of the wireless communication unit is changed from a state in which communication is impossible to a state in which communication is possible.
Further, a mobile wireless terminal according to a preferred aspect of the present invention includes a receiver for receiving a position specifying signal for specifying a position, a detector for detecting a moving speed of the mobile wireless terminal, and a mobile communication network. a wireless communication unit that communicates with a communication terminal via the When the position specifying signal cannot be received, the operation of the wireless communication unit is controlled to a state in which communication is disabled, and when the position specifying signal can be received, the operation of the wireless communication unit is controlled to a state in which communication is possible. .

According to the present invention, it is possible to reduce the power consumption of a mobile wireless terminal.

1 is a conceptual diagram showing the configuration of a positioning system according to a first embodiment; FIG. 1 is a block diagram showing the configuration of a wireless tag device according to a first embodiment; FIG. 2 is a block diagram showing the configuration of a communication terminal according to the first embodiment; FIG. 2 is a block diagram showing the functional configuration of the wireless tag device according to the first embodiment; FIG. FIG. 2 is a diagram for explaining a mode of intermittent reception; FIG. FIG. 2 is a diagram for explaining a mode of intermittent reception; FIG. FIG. 2 is a diagram for explaining a mode of intermittent reception; FIG. FIG. 4 is a diagram for explaining how a paging signal is received; FIG. 4 is a flow chart showing the operation of the wireless tag device in the first embodiment; 8 is a flow chart showing the operation of the wireless tag device in the second embodiment; 10 is a flow chart showing the operation of the wireless tag device in the third embodiment; 14 is a flow chart showing the operation of the wireless tag device in the fourth embodiment; 14 is a flow chart showing the operation of the wireless tag device in the fifth embodiment;

1. First Embodiment 1-1. Overall Configuration FIG. 1 is a block diagram showing the configuration of a positioning system according to the first embodiment. A positioning system 100 shown in FIG. 1 is a system that can be used, for example, to search for lost items or lost children. The positioning system 100 has a wireless tag device 2, which is an example of a “portable wireless terminal”, and a communication terminal 3. FIG. The positioning system 100 uses the communication terminal 3 to measure the current position of the object O1 to which the wireless tag device 2 is attached. The object O1 is, for example, a user U's belonging such as a bag. Note that the object O1 may be a child's clothes, a pet's collar, or the like.

In this embodiment, the communication terminal 3 is a communication terminal that the user U can carry, for example. Specific examples of the communication terminal 3 include smartphones, mobile phones, tablets, wearable terminals, and the like.

Also, the wireless tag device 2 and the communication terminal 3 can be connected to each other by short-range wireless communication. Near-field wireless communication is communication with a communication distance of up to several tens of meters, such as wireless PAN. Specifically, short-range wireless communication is communication conforming to communication standards such as Bluetooth or ZigBee. Note that Bluetooth and ZigBee are registered trademarks, respectively.

Also, the wireless tag device 2 and the communication terminal 3 each have a function of connecting to the mobile communication network 5 . The mobile communication network 5 has multiple base stations. Each base station communicates with each of the wireless tag device 2 and the communication terminal 3 by a communication method conforming to communication standards such as LTE (Long Term Evolution) and license band LPWA (Low Power Wide Area). In particular, from the viewpoint of power saving, it is preferable that the wireless tag device 2 be capable of communication connection by LPWA of a license band compatible with eDRX such as NB-IoT.

The wireless tag device 2 also has a function of receiving GPS signals, which are radio waves from GPS (Global Positioning System) satellites, and measuring its current position based on the received GPS signals. The wireless tag device 2 also has a function of calculating its own moving speed.

In such a positioning system 100, when short-range wireless communication between the communication terminal 3 and the wireless tag device 2 is cut off, the wireless tag device 2 changes from a state in which communication via the mobile communication network 5 is impossible to a state in which communication is possible. state. Then, the wireless tag device 2 transmits information about its own position to the mobile communication network 5, and the communication terminal 3 notifies the user U of the position of the wireless tag device 2. FIG. Examples of notification modes include display of latitude and longitude, display of place names, display of marks indicating positions on a map, readout of latitude and longitude, readout of place names, and the like. With the position notification, the user U can know the current position of the object O1 even if the object O1 to which the wireless tag device 2 is attached is lost. Furthermore, in order to improve the power saving of the wireless tag device 2, the wireless tag device 2 controls connection to the mobile communication network 5 according to the presence or absence of GPS signal reception or the moving speed of itself.

Next, each configuration of the wireless tag device 2 and the communication terminal 3 will be described with reference to FIGS. 2 and 3. FIG. Note that hereinafter, the term "apparatus" may be replaced with other terms such as circuit, device, or unit. Also, the illustrated devices of the wireless tag device 2 and the communication terminal 3 may be composed of a single device or a plurality of devices, and some devices may be omitted as appropriate. Moreover, the wireless tag device 2 and the communication terminal 3 may further have devices other than the illustrated devices. Also, hereinafter, the term "communication module" may be read as other terms such as network device, network controller, or network card.

1-1A. Configuration of Wireless Tag Device FIG. 2 is a block diagram showing the configuration of the wireless tag device according to the first embodiment. As shown in FIG. 2, the wireless tag device 2 is a computer system comprising a processing device 21, a storage device 22, a short-range wireless communication device 23, a wireless communication device 24, a GPS receiver 25, a speed detection device 26, and a power supply device 27. It is realized by Each device included in the wireless tag device 2 is connected to each other by a single bus or a plurality of buses.

The processing device 21 is an example of a “controller” and is a processor that controls the entire wireless tag device 2 . The processing device 21 is composed of, for example, a single chip or a plurality of chips. The processing device 21 includes, for example, a central processing unit (CPU) including an arithmetic device and registers. Part or all of the processing device 21 may be configured with hardware such as a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). good. Such a processing device 21 executes various processes in parallel or sequentially. The processing device 21 implements various functions by reading and executing various programs and the like stored in the storage device 22 . In addition, the said various functions are explained in full detail later.

The storage device 22 is a recording medium readable by the processing device 21 and stores a plurality of programs executed by the processing device 21 and various data used by the processing device 21 . The storage device 22 is composed of one or more types of storage circuits such as ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), and RAM (Random Access Memory).

The storage device 22 stores a positioning program P21 executed by the processing device 21 . The storage device 22 also stores pairing information D21 including a communication address used for near field communication with the communication terminal 3 . A communication address is information that can identify a terminal, such as a Bluetooth address. Storage device 22 also stores destination information D<b>22 including an identifier for specifying communication terminal 3 in communication via mobile communication network 5 . Although not shown, the storage device 22 stores information relating to an identifier for identifying itself in connection with the mobile communication network 5 . The identifier corresponds to IMSI (International Mobile Subscriber Identity), for example. The storage device 22 also stores object information D23 indicating the degree of importance determined according to the type and purpose of use of the object O1.

The short-range wireless communication device 23 is an example of a “near-range wireless communication unit” and performs short-range wireless communication with various devices present within a predetermined distance range. The short-range wireless communication device 23 includes, for example, a short-range wireless communication module including an antenna for transmitting and receiving radio waves for short-range wireless communication, and a communication circuit connected to the antenna for transmitting and receiving signals. In this embodiment, the short-range wireless communication device 23 performs short-range wireless communication with the communication terminal 3 .

Specifically, the short-range wireless communication device 23 receives a connection request transmitted from the communication terminal 3 . When the short-range wireless communication device 23 responds to the connection request from the communication terminal 3, a connection is established between the wireless tag device 2 and the communication terminal 3 by short-range wireless communication. The short-range wireless communication device 23 also receives data signals transmitted from the communication terminal 3 in a connected state in which short-range wireless communication has been established with the communication terminal 3 . When the state in which the data signal is being received by the short-range wireless communication changes to the state in which the data signal cannot be received, the short-range wireless communication between the wireless tag device 2 and the communication terminal 3 is cut off.

The wireless communication device 24 is an example of a “wireless communication unit” and connects to the mobile communication network 5 . The wireless communication device 24 includes, for example, a wireless communication module having an antenna for transmitting/receiving radio waves for connecting to the mobile communication network 5 and a communication circuit connected to the antenna for transmitting/receiving signals. Also, the wireless communication device 24 acquires the cell ID assigned to the cell in which it is located from the mobile communication network 5 . A cell ID is identification information that uniquely identifies a cell in which a cell is located. The base station transmits a paging signal P1, which is a call signal, to the wireless tag device 2 located in the cell to which the base station belongs. The mobile communication network 5 grasps the position of the wireless tag device 2 based on the cell ID by using the position registration request and the response to the paging signal P1. A location registration request is a signal requesting registration of a cell in which the wireless tag device 2 is located. Wireless communication device 24 transmits a location registration request to mobile communication network 5 . A location registration request is an example of information about the location of the wireless tag device 2 .

The GPS receiving device 25 is an example of a “receiving unit”, receives radio waves from a plurality of GPS satellites, and outputs a signal used to generate position information of the wireless tag device 2 . Based on the signal, the processing device 21 described above generates position information indicating the position of the wireless tag device 2 . The location information is an example of information about the location of the wireless tag device 2 . The GPS receiver 25 comprises, for example, a GPS module including a GPS antenna for receiving GPS signals and circuitry for processing the GPS signals and outputting the signals to the processor 21 . The wireless tag device 2 may include a receiver that receives satellite signals, which are radio waves from satellites, and outputs a signal for generating position information. In addition to the device 25, for example, a device for receiving radio waves from a satellite in a quasi-zenith orbit may be provided. Also, the “receiving unit” may be a communication unit that communicates with a wireless LAN access point. In that case, location information may be obtained by referring to a database that associates network identification addresses (MAC (Media Access Control) addresses) assigned to access points with actual locations.

The speed detection device 26 acquires acceleration for calculating the moving speed of the wireless tag device 2 . The speed detection device 26 includes, for example, an acceleration sensor. Note that the speed detection device 26 may include sensors other than the acceleration sensor, such as an angular velocity sensor.

The power supply device 27 supplies power to each device included in the wireless tag device 2 . The power supply device 27 includes a battery and a power supply circuit that supplies power from the battery to each device. The battery may be any battery, such as a primary battery, a secondary battery, or a solar battery.

1-1B. Configuration of Communication Terminal FIG. 3 is a block diagram showing the configuration of the communication terminal according to the first embodiment. As shown in FIG. 3, the communication terminal 3 is implemented by a computer system including a processing device 31, a storage device 32, a short-range wireless communication device 33, a wireless communication device 34, a display device 35, and an input device . Each element of the communication terminal is interconnected by a single bus or multiple buses.

The processing device 31 has the same configuration as the processing device 21 , the storage device 32 has the same configuration as the storage device 22 , the short-range wireless communication device 33 has the same configuration as the short-range wireless communication device 23 , and the wireless communication device 34 has the same configuration as the wireless communication device 24 . However, the storage device 32 stores a positioning program P31. The storage device 32 stores pairing information D<b>31 including communication addresses used for near field communication with the communication terminal 3 . The storage device 22 also stores destination information D32 including an identifier for identifying the wireless tag device 2 in communication via the mobile communication network 5 . Although not shown, the storage device 32 stores information related to an identifier for identifying itself in connection with the mobile communication network 5 . The processing device 31 also reads out and executes the positioning program P31 stored in the storage device 32 to perform various functions related to positioning of the wireless tag device 2 .

The display device 35 displays an image that can be visually recognized by the user U, and gives the user U a predetermined notification by means of the image. The display device 35 includes, for example, a display panel such as a liquid crystal display panel. The contents of the predetermined notification include, for example, contents indicating the current position of the wireless tag device 2 and contents indicating that short-range wireless communication with the wireless tag device 2 has been disconnected. Although not shown, the communication terminal 3 may make a notification by sound using a speaker, or may make a notification by vibration using a vibrator. The notification by vibration cannot notify the user U of the current position of the wireless tag device 2 in detail, but can notify the user U that the short-range wireless communication with the wireless tag device 2 has been disconnected.

The input device 36 receives input from the user U. The input device 36 includes, for example, some or all of a keyboard, mouse, microphone, switches, buttons, and sensors. Also, the input device 36 and the display device 35 described above may be configured by a touch panel.

1-1C. Functional Configuration of Wireless Tag Device FIG. 4 is a block diagram showing the functional configuration of the wireless tag device according to the first embodiment. As shown in FIG. 4, the processing device 21 of the wireless tag device 2 reads out the positioning program P21 from the storage device 22 and executes it, thereby enabling the wireless communication control unit 210, the activation control unit 211, and the short-range wireless communication management unit. 212 , a location information management unit 213 , a speed management unit 214 , a paging setting unit 215 and a target setting unit 216 .

The wireless communication control unit 210 controls the wireless communication device 24 to transmit information regarding the location of the wireless tag device 2 to the mobile communication network 5 . The information about the position of the wireless tag device 2 is, for example, position information based on a position specifying signal such as a position registration request and a satellite signal such as a GPS signal.

The activation control unit 211 activates or deactivates each of the wireless communication device 24 and the GPS receiver 25 .

The activation control unit 211 controls the operation of the wireless communication device 24 so that communication via the mobile communication network 5 is disabled or enabled. An example of the operation of the wireless communication unit is to disable communication via the mobile communication network 5 or to enable communication. Specifically, for example, the activation control unit 211 causes the wireless communication device 24 to transition from a state in which communication via the mobile communication network 5 is impossible to a state in which communication is possible. That is, activation control section 211 activates wireless communication device 24 . Activation control unit 211 also causes wireless communication device 24 to transition from a state in which communication via mobile communication network 5 is possible to a state in which communication is not possible. That is, activation control section 211 deactivates wireless communication device 24 .

More specifically, the activation control unit 211 activates the wireless communication device 24 by starting power supply to the wireless communication device 24 from the power supply device 27 to activate the wireless communication device 24 . On the other hand, the activation control unit 211 deactivates the wireless communication device 24 by stopping the operation of the wireless communication device 24 by stopping the power supply to the wireless communication device 24 from the power supply device 27 . Further, the activation control unit 211 deactivates the wireless communication device 24 by putting the wireless communication device 24 into a sleep state without stopping the power supply to the wireless communication device 24 by the power supply device 27. good too. The activation control unit 211 may also activate the wireless communication device 24 by canceling the sleep state. Here, the sleep state refers to a state in which power is supplied to the wireless communication device 24 but the wireless communication device 24 is not connected to the mobile communication network 5 and transmission and reception via the mobile communication network 5 cannot be performed. By placing the wireless communication device 24 in the sleep state, it is possible to activate the wireless communication device 24 more quickly than when activating from a state in which the power supply is stopped.

The activation control unit 211 also controls the operation of the GPS receiver 25 so that the GPS signal cannot be received or can be received. Specifically, for example, the activation control unit 211 causes the GPS receiver 25 to transition from a GPS signal unreceivable state to a GPS signal receivable state. That is, activation control section 211 activates GPS receiver 25 . In addition, the activation control unit 211 causes the GPS receiver 25 to transition from a GPS signal receivable state to a GPS signal unreceivable state. That is, activation control section 211 deactivates GPS receiver 25 .

More specifically, the activation control unit 211 activates the GPS receiver 25 by activating the GPS receiver 25 by starting power supply to the GPS receiver 25 from the power supply device 27 . On the other hand, the activation control unit 211 deactivates the GPS receiver 25 by stopping the operation of the GPS receiver 25 by stopping power supply to the GPS receiver 25 from the power supply 27 .

The short-range wireless communication management unit 212 causes the short-range wireless communication device 23 to perform connection processing related to short-range wireless communication. In connection processing, the short-range wireless communication management unit 212 causes the short-range wireless communication device 23 to perform pairing with the communication terminal 3 .

The short-range wireless communication management unit 212 detects whether or not the short-range wireless communication device 23 has received a connection request from the communication terminal 3, thereby determining whether or not the short-range wireless communication can be connected to the communication terminal 3. . Also, the short-range wireless communication management unit 212 causes the short-range wireless communication device 23 to execute a response to the connection request to establish a connection with the communication terminal 3 by short-range wireless communication. Further, the short-range wireless communication management unit 212 detects whether or not the short-range wireless communication device 23 has received a data signal from the communication terminal 3, thereby determining whether or not the short-range wireless communication with the communication terminal 3 has been disconnected. to judge.

The location information manager 213 generates the current location of the wireless tag device 2 based on the signal output from the GPS receiver 25 when the GPS receiver 25 can receive GPS signals. The location information includes, for example, latitude and longitude. Also, the position information management unit 213 determines whether or not the GPS signal can be received by the GPS receiver 25 based on the signal output from the GPS receiver 25 .

The speed management unit 214 detects the moving speed of the wireless tag device 2 by integrating the acceleration acquired by the speed detection device 26 . Here, the speed management unit 214 and the speed detection device 26 described above function as a “detection unit” that detects the moving speed of the wireless tag device 2 . Also, the speed management unit 214 determines whether or not the moving speed is equal to or less than a predetermined value. The predetermined value can be set as appropriate. With such a degree, it is possible to accurately determine whether the wireless tag device 2 is in a moving state or a stationary state based on the moving speed.

Paging setting unit 215 controls the operation of wireless communication device 24 regarding reception of paging signal P<b>1 that is a calling signal transmitted from mobile communication network 5 . An example of the operation of the wireless communication device 24 is the operation regarding reception of the paging signal P1. Specifically, the operation of the wireless communication device 24 is to change, for example, the intermittent reception interval of the paging signal P1. It is to notify the communication network 5. Also, the paging setting unit 215 controls the operation of the wireless communication device 24 according to, for example, the moving speed of the device itself or whether or not the GPS signal is received.

5, 6, 7, and 8 are diagrams for explaining modes of intermittent reception. 5, 6, 7 and 8 show a connection state P0 in which the wireless tag device 2 is connected to the mobile communication network 5, and intermittent reception intervals d1 to d3 of the paging signal P1 of the wireless tag device 2. is shown. The vertical axis is current consumption, and the horizontal axis is time.

The paging setting unit 215 controls the operation of the wireless communication device 24, for example, from the interval d1 of the paging signal P1 shown in FIG. 5 to the interval d2 of the paging signal P1 shown in FIG. In other words, the paging setting unit 215 causes the wireless communication device 24 to change the interval d1 to the shorter interval d2. For example, FIG. 5 shows a reception mode when DRX (Discontinuous Reception) is applied, and FIG. 6 shows a reception mode according to the normal LTE scheme without applying a power saving mode such as DRX. For example, interval d1 in FIG. 5 is 2.56 seconds and interval d2 in FIG. 6 is 1.28 seconds.

Also, the paging setting unit 215 controls the operation of the wireless communication device 24 to change the interval d1 of the paging signal P1 shown in FIG. 5 to the interval d3 of the paging signal P1 shown in FIG. 7, for example. In other words, the paging setting unit 215 causes the wireless communication device 24 to change the interval d1 to the longer interval d3. For example, FIG. 7 shows a reception mode when eDRX (Extended Discontinuous Reception) is applied. For example, interval d3 in FIG. 7 is 43 minutes.

Also, the paging setting unit 215 controls the operation of the wireless communication device 24 so that the reception of the paging signal P1 is stopped as shown in FIG. 8 from the state shown in FIG. 5, for example. With this control, the wireless communication device 24 transmits a location registration request but does not receive downlink signals. For example, FIG. 8 shows a reception mode when PSM (Power Saving Mode) is applied. The paging setting unit 215 does not receive downlink signals for 24 hours, for example. By setting the state shown in FIG. 8, the wireless communication device 24 can significantly reduce power consumption compared to the state shown in FIG.

Note that the intermittent reception interval of the paging signal P1 is not limited to the period described above. The period during which the reception of the paging signal P1 is stopped is also not limited to the period described above.

The target setting unit 216 sets the importance of the object O1 to which the wireless tag device 2 is attached. The importance can be set by receiving an operation instruction from the user U. For example, the user U inputs the type and purpose of use of the object O1 to the communication terminal 3 . The short-range wireless communication device 23 receives a signal based on the input, and the target setting unit 216 sets the importance of the object O1 based on the received signal. For example, the storage device 22 stores data in which the type and purpose of use of the object O1 and the degree of importance are associated with each other. Set the importance according to Note that the user U may directly input the importance instead of the type of the object O1.

1-2. Operation of Wireless Tag Device FIG. 9 is a flowchart for explaining the operation of the wireless tag device according to the first embodiment.

Below, the case where the communication terminal 3 is a smart phone which the user U owns is demonstrated to an example. In the following, an example will be described in which the user U leaves the object O1 somewhere while carrying the object O1 with the wireless tag device 2 and the communication terminal 3. FIG. In this case, first, when the user U carries both the object O1 and the communication terminal 3, the wireless tag device 2 and the communication terminal 3 are connected by short-range wireless communication. After that, when the user U misplaces the object O1 somewhere, the short-range wireless communication between the wireless tag device 2 and the communication terminal 3 is disconnected. When the short-range wireless communication is disconnected, the positioning system 100 starts positioning the object O1.

The operation of the wireless tag device 2 will be sequentially described below. It is assumed that the wireless tag device 2 has already been paired with the communication terminal 3 . Moreover, before execution of the flowchart shown in FIG. 9, the wireless communication device 24 and the GPS receiver 25 of the wireless tag device 2 are deactivated. Further, in describing the flowchart shown in FIG. 9, the user U carries both the object O1 and the communication terminal 3, and the wireless tag device 2 has established a connection with the communication terminal 3 by short-range wireless communication. shall be

First, the short-range wireless communication management unit 212 determines whether short-range wireless communication with the communication terminal 3 has been disconnected by threshold determination based on the reception strength of the data signal from the communication terminal 3 by the short-range wireless communication device 23. (step S11). Either the wireless tag device 2 or the communication terminal 3 performs the threshold determination. When the user U leaves the object O1 somewhere and the wireless tag device 2 and the communication terminal 3 are located outside the communication range of each other by short-range wireless communication, the proximity between the wireless tag device 2 and the communication terminal 3 Long-distance wireless communication is disconnected.

Next, when it is determined that the short-range wireless communication with the communication terminal 3 has been disconnected (Yes in step S11), the activation control unit 211 activates the wireless communication device 24 and the GPS receiver 25 (step S12). . That is, when it is determined that the short-range wireless communication has been disconnected, the activation control unit 211 causes the wireless communication device 24 to transition from a state in which communication via the mobile communication network 5 is impossible to a state in which communication is possible, and at the same time, transmits GPS signals. The GPS receiver 25 is shifted from the unreceivable state to the receivable state.

For example, the activation control unit 211 activates the wireless communication device 24 by activating the wireless communication device 24 by causing the power supply device 27 to start supplying power to the wireless communication device 24 . Further, for example, the activation control unit 211 activates the GPS receiver 25 by causing the power supply device 27 to start supplying power to the GPS receiver 25 to activate the GPS receiver 25 . Note that the activation control unit 211 may activate the wireless communication device 24 by canceling the sleep state.

Here, when the short-range wireless communication with the wireless tag device 2 is disconnected, the communication terminal 3 notifies the user U of the disconnection of the short-range wireless communication or notifies the user U of the content corresponding to the disconnection. The content is, for example, a suggestion of the possibility that the object O1 has been lost. This notification allows the user U to know that there is a possibility that the object O1 has been lost.

Next, the wireless communication control unit 210 of the wireless tag device 2 controls the wireless communication device 24 to transmit the location registration request to the mobile communication network 5 (step S13). Note that the wireless communication control unit 210 sends a location registration request to the mobile communication network 5 every time the wireless tag device 2 moves and the cell in which it is located changes, or at regular intervals in steps S14 to S21 described later. control the wireless communication device 24 to transmit to.

Next, the speed management unit 214 calculates the moving speed of the wireless tag device 2 based on the acceleration detected by the speed detection device 26 (step S14). The moving speed is the average speed for a predetermined period after the wireless communication device 24 becomes ready for communication via the mobile communication network 5 . The predetermined period can be set as appropriate.

Next, the speed management unit 214 determines whether or not the moving speed is equal to or less than a predetermined value (step S15). If it is determined that the moving speed is equal to or less than the predetermined value (Yes in step S15), the paging setting unit 215 causes the wireless communication device 24 to shorten the intermittent reception interval of the paging signal P1 compared to before the change (step S16). . Specifically, the paging setting unit 215 causes the wireless communication device 24 to notify the mobile communication network 5 of a request to shorten the intermittent reception interval of the paging signal P1. For example, the wireless communication device 24 changes the intermittent reception interval of the paging signal P1 from the interval d1 shown in FIG. 5 to the interval d2 shown in FIG. Even if the moving speed is equal to or less than the predetermined value, if the moving speed is stopped, the process may proceed to step S17 without proceeding to step S16.

On the other hand, if it is determined that the moving speed exceeds the predetermined value (No in step S15), the paging setting unit 215 causes the wireless communication device 24 to lengthen the intermittent reception interval of the paging signal P1 compared to before the change (step S17). ). The paging setting unit 215 causes the wireless communication device 24 to notify the mobile communication network 5 of a request to lengthen the intermittent reception interval of the paging signal P1. For example, the processor 21 changes the intermittent reception interval of the paging signal P1 from the interval d1 shown in FIG. 5 to the interval d3 shown in FIG.

That is, the paging setting unit 215 causes the wireless communication device 24 to shorten the interval of intermittent reception of the paging signal P1 in step S16 than when the moving speed exceeds the predetermined value, and in step S17 when the moving speed is equal to or less than the predetermined value. The intermittent reception interval of the paging signal P1 is set to the wireless communication device 24. In step S17, the processing device 21 may stop receiving the paging signal P1 as shown in FIG.

Next, the position information management unit 213 determines whether or not the GPS signal can be received (step S18). If the GPS signal can be received (Yes in step S18), the position information management unit 213 generates position information indicating the current position of the wireless tag device 2 based on the signal output from the GPS receiver 25 ( step S19). Next, the wireless communication control unit 210 causes the wireless communication device 24 to transmit the location information to the communication terminal 3 via the mobile communication network 5 (step S20).

Here, the communication terminal 3 notifies the user U of the position of the wireless tag device 2 upon receiving the position information. This notification allows the user U to know the current position of the object O1.

In step S18 described above, if the GPS signal cannot be received (No in step S18), the processing device 21 of the wireless tag device 2 advances the process to step S21. In this case, the communication terminal 3 acquires the location information of the wireless tag device 2 based on the cell ID from the mobile communication network 5 and notifies the user U of the location of the wireless tag device 2 based on the cell ID. This notification allows the user U to know the approximate current position of the object O1.

Next, the short-range wireless communication management unit 212 determines whether or not it is connected to the communication terminal 3 by short-range wireless communication (step S21). When the user U acquires the object O1 with the wireless tag device 2 again, the wireless tag device 2 is connected to the communication terminal 3 by short-range wireless communication. Note that the short-range wireless communication management unit 212 repeats S18 to S20 at intervals of the set period or according to intermittent reception intervals until it is determined that the short-range wireless communication is connected.

Next, when it is determined that the communication terminal 3 is connected by short-range wireless communication (Yes in step S21), the activation control unit 211 deactivates the wireless communication device 24 and the GPS receiver 25 (step S22). . That is, when the connection by short-range wireless communication is re-established, the activation control unit 211 causes the wireless communication device 24 to transition from a state in which communication via the mobile communication network 5 is possible to a state in which communication is not possible, and receives a GPS signal. The GPS receiver 25 is transitioned from the enabled state to the unreceivable state. When the user U acquires the object O1 again and the connection of the wireless tag device 2 by short-range wireless communication is re-established, the wireless communication device 24 and the GPS receiver 25 are deactivated so as not to be deactivated. In comparison, the power consumption of the wireless tag device 2B can be suppressed.

The deactivation of the wireless communication device 24 is performed by, for example, stopping the operation of the wireless communication device 24 by causing the activation control unit 211 to stop supplying power to the wireless communication device 24 from the power supply device 27 . Also, the deactivation of the GPS receiver 25 is the same. Alternatively, the wireless communication device 24 may be inactivated by putting it into a sleep state.

An example of the operation of the wireless tag device 2 has been described above. As described above, the wireless tag device 2 includes a "detector" composed of the speed control unit 214 and the speed detection device 26 of the processing device 21, the GPS receiver 25 for receiving GPS signals, and mobile communication It has a wireless communication device 24 that communicates with the communication terminal 3 via the network 5 . The processing device 21 also controls the operation of the wireless communication device 24 according to the moving speed, and causes the wireless communication device 24 to transmit information regarding the position of the wireless tag device 2 to the mobile communication network 5 . By controlling the operation of the wireless communication device 24 according to the moving speed, the power consumption of the wireless tag device 2 can be reduced.

Specifically, the processing device 21 controls the operation of the radio communication device 24 related to reception of the paging signal P1, which is a call signal from the mobile communication network 5, according to the moving speed. By controlling the operation related to the reception of the paging signal P1 according to the moving speed, power saving of the wireless tag device 2 can be achieved according to the moving speed of the object O1.

More specifically, in the flowchart shown in FIG. 9, when the moving speed is equal to or less than a predetermined value, the processor 21 sets the interval at which the wireless communication device 24 receives the paging signal P1 more than when the moving speed exceeds the predetermined value. is shortened (step S16), and when the moving speed exceeds a predetermined value, the interval at which the wireless communication device 24 receives the paging signal P1 is made longer than when the moving speed is less than or equal to the predetermined value (step S17).

When the moving speed is high, the position of the wireless tag device 2 tends to change over time. Therefore, when the moving speed is fast, even if the position information based on the GPS signal is transmitted or the position information based on the cell ID is received, the position changes immediately, and the transmitted position information is wasted. turn into. Moreover, the power consumption of the wireless tag device 2 also increases. Therefore, when the moving speed exceeds a predetermined value, priority is given to suppressing power consumption by lengthening the intermittent reception interval of the paging signal P1 until the moving speed becomes equal to or less than the predetermined value. On the other hand, when the moving speed is a predetermined value and the moving speed is slow, the position of the wireless tag device 2 is unlikely to change with time, so the intermittent reception interval of the paging signal P1 is shortened. By shortening the intermittent reception interval of the paging signal P1, even if the GPS signal becomes temporarily unreceivable for some reason, it is possible to perform positioning using the cell ID. Therefore, the user U can quickly find the lost object O1.

Further, as described above, in step S17, the processing device 21 may cause the wireless communication device 24 to stop the paging signal P1 instead of increasing the interval at which the wireless communication device 24 receives the paging signal P1. By stopping the reception of the paging signal P1, the power consumption can be further suppressed than by lengthening the interval.

In the above description, the processing device 21 lengthens the interval at which the wireless communication device 24 receives the paging signal P1 when the moving speed exceeds a predetermined value, and the paging signal P1 when the moving speed is less than or equal to the predetermined value. Although the interval at which the signal P1 is received by the wireless communication device 24 is shortened, the reverse is also possible. That is, the processing device 21 shortens the interval at which the wireless communication device 24 receives the paging signal P1 when the moving speed exceeds the predetermined value. Further, when the moving speed is equal to or less than a predetermined value, the processing device 21 may lengthen the interval at which the wireless communication device 24 receives the paging signal P1, or may stop receiving the paging signal P1. According to this process, even if the moving speed is high and the moving distance is long, the position of the wireless tag device 2 can be grasped accurately and in a timely manner. Also, when the moving speed is slow, the positional fluctuation of the wireless tag device 2 is small, so that the power consumption of the wireless tag device 2 can be reduced. That is, according to this process, it is possible to give priority to the search while suppressing an excessive increase in power consumption, as compared with the processes of steps S15, S16, and S17 shown in FIG.

Moreover, as described above, when the short-range wireless communication with the communication terminal 3 transitions from connection to disconnection, the processing device 21 activates the wireless communication device 24 (step S12). In other words, the operation of the wireless communication device 24 is changed from a state in which communication is impossible to a state in which communication is possible. Therefore, the wireless communication device 24 cannot communicate via the mobile communication network 5 until the short-range wireless communication with the communication terminal 3 is disconnected. Therefore, compared to the case where the short-range wireless communication device 23 can communicate via the mobile communication network 5 even while the wireless tag device 2 is connected by short-range wireless communication, the electric power of the wireless tag device 2 is reduced. Consumption can be reduced. Furthermore, in the present embodiment, as described above, the processing device 21 activates the GPS receiver 25 when the short-range wireless communication with the communication terminal 3 transitions from connection to disconnection (step S12). Therefore, the GPS receiver 25 cannot receive GPS signals until the short-range wireless communication with the communication terminal 3 is disconnected. Therefore, power consumption of the wireless tag device 2 can be further reduced.

Further, as described above, the communication terminal 3 notifies the user U of the position of the wireless tag device 2 when communication with the wireless tag device 2 is established via the mobile communication network 5 . The communication terminal 3 notifies the user U of the location of the wireless tag device 2 based on either the location information based on the GPS signal or the location information based on the cell ID. Therefore, the user U can easily find the object O1 by starting a search based on the notified position.

In addition, although the number of wireless tag devices 2 is one in the drawing, the number of wireless tag devices 2 may be plural. Also, the positioning system 100 may have communication terminals other than the communication terminal 3 .

Also, the “portable wireless terminal” is not limited to the wireless tag device 2 as long as it is portable and capable of communication connection with the mobile communication network 5 . For example, a “portable wireless terminal” may be a smart phone, a mobile phone, a tablet, a wearable terminal, or the like. However, if the "portable wireless terminal" is a wireless tag with a built-in battery, the advantage of power saving can be remarkably exhibited, which is beneficial.

2. Second Embodiment A second embodiment of the present invention will be described. FIG. 10 is a flow chart showing the operation of the wireless tag device in the second embodiment. In the second embodiment illustrated below, the same reference numerals as in the first embodiment are used for the same items as those in the first embodiment, and detailed descriptions thereof are appropriately omitted.

In this embodiment, the wireless tag device 2 receives the paging signal P1 according to the importance L determined according to the type of the object O1 and the purpose of use, in addition to determining whether the moving speed is equal to or less than a predetermined value. to control the operation of the wireless communication device 24 (steps S23 to S25 and S16).

Specifically, as shown in FIG. 10, when it is determined in step S15 that the moving speed exceeds a predetermined value, the paging setting unit 215 performs paging according to the importance level L of the object O1 set by the object setting unit 216. Controls the operation of wireless communication device 24 with respect to receipt of signal P1.

The number of stages of the importance level L can be set as appropriate, but is set to three stages in the illustrated example, for example. The target setting unit 216 divides the degree of importance L into "1", "2" and "3" in descending order. It is assumed that importance L=“1” has the highest importance L, and importance L=“3” has the lowest importance. The target setting unit 216 sets the importance level L according to the type and purpose of use of the object O1. For example, importance L="1" is a person such as a child. The degree of importance L=“2” is the wallet or the like owned by the user U. Importance L=“3” is umbrellas and the like for which there are many alternatives.

If the importance level L of the object O1 is "1" (L1 in step S23), the paging setting unit 215 causes the wireless communication device 24 to shorten the intermittent reception interval of the paging signal P1 compared to before the change (step S16). Specifically, the paging setting unit 215 causes the wireless communication device 24 to notify the mobile communication network 5 of a request to shorten the intermittent reception interval of the paging signal P1. For example, the processing device 21 controls the operation of the wireless communication device 24 to change the interval d1 shown in FIG. 5 to the interval d2 shown in FIG.

If the importance level L of the object O1 is "2" (L2 in step S23), the paging setting unit 215 causes the wireless communication device 24 to lengthen the intermittent reception interval of the paging signal P1 compared to before the change (step S24). Specifically, the paging setting unit 215 causes the wireless communication device 24 to notify the mobile communication network 5 of a request to lengthen the intermittent reception interval of the paging signal P1. For example, the processing device 21 controls the operation of the wireless communication device 24 to change the interval d1 shown in FIG. 5 to the interval d3 shown in FIG.

If the importance level L of object O1 is "3" (L3 in step S23), paging setting unit 215 causes wireless communication device 24 to stop receiving paging signal P1 (step S25). Specifically, the paging setting unit 215 causes the wireless communication device 24 to notify the mobile communication network 5 of a request to stop the intermittent reception interval of the paging signal P1. For example, the processing device 21 shifts from the state shown in FIG. 5 to a state in which reception of the paging signal P1 is stopped as shown in FIG. It controls the operation of the wireless communication device 24 as follows.

The processing device 21 controls the operation of the wireless communication device 24 related to the reception of the paging signal P1 according to the type and purpose of use of the object O1 to which the wireless tag device 2 is attached, thereby preventing excessive power consumption according to the object O1. While suppressing the increase, priority can be given to searching depending on the type and purpose of use of the object O1. Specifically, as described above, if the object O1 is a child or the like even if the moving speed exceeds a predetermined value, the interval of intermittent reception of the paging signal P1 is shortened, so that the GPS signal is temporarily delayed for some reason. Positioning based on the cell ID can be preferably performed even if reception is generally impossible. For example, if the child does not normally use cars or trains, the predetermined value of the moving speed is set to about the walking speed. Then, even if the moving speed exceeds a predetermined value, the intermittent reception interval of the paging signal P1 is not shortened but lengthened, so that the child can be searched accurately and timely. Therefore, it is useful in an emergency such as when a child is taken away. On the other hand, when the object O1 is an umbrella or the like, the suppression of power consumption can be prioritized by suspending the paging signal P1 for a predetermined period. For this reason, convenience for the user U can be improved by changing the reception mode of the paging signal P1 depending on the type and purpose of use of the object O1.

It should be noted that the illustrated flowchart is only an example. An option may be added to maintain the state before change without changing the intermittent reception interval of signal P1.

3. Third Embodiment A third embodiment of the present invention will be described. FIG. 11 is a flow chart showing the operation of the wireless tag device in the third embodiment. In addition, in the third embodiment illustrated below, the same reference numerals as in the first embodiment are applied to the same items as in the first embodiment, and detailed descriptions thereof are appropriately omitted.

As shown in FIG. 11, in this embodiment, when it is determined that the connection of the short-range wireless communication has been disconnected (Yes in step S31), the speed management unit 214 detects the acceleration detected by the speed detection device 26. The moving speed of the wireless tag device 2 is calculated (step S32).

Next, the speed management unit 214 determines whether or not the moving speed is equal to or less than a predetermined value (step S33). If it is determined that the moving speed is equal to or less than the predetermined value (Yes in step S33), the activation control unit 211 activates the wireless communication device 24 and the GPS receiver 25 (step S34). That is, if the moving speed is equal to or less than a predetermined value, the activation control unit 211 causes the wireless communication device 24 to transition from a state in which communication via the mobile communication network 5 is impossible to a state in which communication is possible, and to disable reception of GPS signals. The GPS receiving device 25 is shifted from a state in which reception is possible to a state in which reception is possible.

On the other hand, if it is determined that the moving speed exceeds the predetermined value (No in step S33), the activation control unit 211 keeps the wireless communication device 24 and the GPS receiver 25 deactivated. Then, the short-range wireless communication management unit 212 determines whether or not it is connected to the communication terminal 3 by short-range wireless communication (step S35). If it is determined that the communication terminal 3 is connected by short-range wireless communication (Yes in step S35), the processing device 21 advances the process to step S22. On the other hand, if it is determined that the communication terminal 3 is not connected by short-range wireless communication (No in step S35), the processing device 21 advances the process to step S33.

In this embodiment, as described above, the processing device 21 controls the operation of the wireless communication device 24 to disable communication or enable communication according to the moving speed (step S34). By controlling as described above according to the moving speed, the power consumption of the wireless tag device 2 can be suppressed compared to the case where the wireless communication device 24 is always in a communicable state.

As described above, in the flowchart shown in FIG. 11, the processing device 21 controls the operation of the wireless communication device 24 to disable communication when the moving speed exceeds a predetermined value. On the other hand, when the moving speed is equal to or less than the predetermined value, the processing device 21 controls the operation of the wireless communication device 24 to enable communication (step S34). When the moving speed exceeds a predetermined value, power consumption in the wireless communication device 24 can be suppressed by disabling communication via the mobile communication network 5 . On the other hand, if the moving speed is equal to or less than the predetermined value, the wireless communication device 24 is enabled for communication via the mobile communication network 5, and positioning based on the GPS signal or cell ID is started. By starting positioning, the lost object O1 can be quickly found.

Note that the flowchart shown in FIG. 11 is an example, and the processing device 21 enables the operation of the wireless communication device 24 from a state in which communication via the mobile communication network 5 is disabled when, for example, the moving speed exceeds a predetermined value. state can be controlled. Further, the processing device 21 may control the operation of the wireless communication device 24 to disable communication via the mobile communication network 5 when the moving speed is equal to or less than a predetermined value. According to this control, the position of the wireless tag device 2 can be grasped accurately and in a timely manner even if the moving distance is long due to the high moving speed. Also, when the moving speed is slow, the change in the position of the wireless tag device 2 is small, so power saving of the wireless tag device 2 is prioritized.

11, the activation control unit 211 deactivates the wireless communication device 24 and the GPS receiver 25 when the moving speed exceeds a predetermined value from a state in which it is equal to or less than a predetermined value. good.

4. Fourth Embodiment A fourth embodiment of the present invention will be described. FIG. 12 is a flow chart showing the operation of the wireless tag device in the fourth embodiment. In the fourth embodiment illustrated below, the same reference numerals as in the first embodiment are used for the same items as in the first embodiment, and detailed descriptions thereof are appropriately omitted.

As shown in FIG. 12, in this embodiment, when it is determined that the short-range wireless communication with the communication terminal 3 has been disconnected (Yes in step S41), the activation control unit 211 activates the wireless communication device 24 and the GPS receiver 25. is activated (step S42). Next, the wireless communication control unit 210 causes the wireless communication device 24 to output a location registration request (step S43).

Next, when it is determined that the GPS signal can be received (Yes in step S44), the paging setting unit 215 sets the intermittent reception interval of the paging signal P1 longer than before the change, and changes the setting to the mobile communication network. 5 (step S45). On the other hand, if it is determined that the GPS signal cannot be received (No in step S44), the paging setting unit 215 sets the intermittent reception interval of the paging signal P1 shorter than before the change, and changes the setting to the mobile communication network 5. (step S46).

In other words, the paging setting unit 215 makes the interval of intermittent reception of the paging signal P1 longer than when the GPS signal cannot be received in step S45, and makes the interval of intermittent reception of the paging signal P1 longer than when the GPS signal can be received in step S46. is controlled to shorten the operation of the wireless communication device 24 .

In the present embodiment, as described above, the processing device 21 controls the operation of the wireless communication device 24 according to whether or not the GPS signal can be received. to the wireless communication device 24. Power saving of the wireless tag device 2 can be achieved by controlling the operation of the wireless communication device 24 depending on whether or not the GPS signal can be received.

Specifically, the processing device 21 controls the operation of the wireless communication device 24 related to reception of the paging signal P1, which is a calling signal from the mobile communication network 5, depending on whether or not the GPS signal can be received. Power saving of the wireless tag device 2 can be achieved by controlling the operation related to the reception of the paging signal P1 according to whether or not the GPS signal can be received.

In the flowchart shown in FIG. 12, when the GPS signal cannot be received, the processing device 21 shortens the interval at which the wireless communication device 24 receives the paging signal P1 compared to when the GPS signal can be received (step S46), and the GPS signal is received. If the GPS signal can be received, the interval at which the radio communication device 24 receives the paging signal P1 is made longer than when the GPS signal cannot be received (step S45).

When the GPS signal cannot be received, by shortening the intermittent reception interval of the paging signal P1, positioning based on the cell ID can be preferably performed instead of positioning based on the GPS signal. Therefore, even if the GPS signal cannot be received, the position of the wireless tag device can be identified by the cell ID. On the other hand, when the GPS signal can be received, position information based on the GPS signal can be transmitted from the wireless tag device 2 to the communication terminal 3, so the intermittent reception interval of the paging signal P1 is lengthened. Power consumption can be suppressed by increasing the length. Further, in step S45, the processing device 21 may stop receiving the paging signal P1 instead of lengthening the intermittent reception interval of the paging signal P1. By stopping the reception of the paging signal P1, the power consumption can be further suppressed than when the intermittent reception interval is lengthened.

The flowchart shown in FIG. 12 is an example. For example, when the GPS signal can be received, the processing device 21 lengthens the intermittent reception interval of the paging signal P1 or stops receiving the paging signal P1, When the signal cannot be received, the intermittent reception interval of the paging signal P1 may be shortened.

5. Fifth Embodiment A fifth embodiment of the present invention will be described. FIG. 13 is a flow chart showing the operation of the wireless tag device according to the fifth embodiment. In the fifth embodiment illustrated below, the same reference numerals as in the first embodiment are used for the same items as those in the first embodiment, and detailed descriptions thereof are omitted as appropriate.

As shown in FIG. 13, when it is determined that the short-range wireless communication with the communication terminal 3 has been disconnected (Yes in step S61), the activation control unit 211 activates the GPS receiver 25 (step S62). Next, the location information management unit 213 determines whether or not the GPS signal can be received (step S63). If the GPS signal can be received, activation control section 211 activates the wireless communication section (step S64), and wireless communication control section 210 causes wireless communication device 24 to transmit a location registration request (step S66).

On the other hand, if the GPS signal cannot be received, the activation control unit 211 keeps the wireless communication device 24 deactivated. Then, the short-range wireless communication management unit 212 determines whether or not it is connected to the communication terminal 3 by short-range wireless communication (step S65). If it is determined that the communication terminal 3 is connected by short-range wireless communication (Yes in step S65), the processing device 21 advances the process to step S22. On the other hand, if it is determined that the communication terminal 3 is not connected by short-range wireless communication (No in step S65), the processing device 21 advances the process to step S63.

As described above, the processing device 21 controls the operation of the wireless communication device 24 to disable communication or enable communication depending on whether or not the GPS signal is received. By controlling as described above according to the presence or absence of reception of GPS signals, power consumption can be suppressed compared to the case where the wireless communication device 24 is always in a communicable state.

More specifically, in the flowchart shown in FIG. 13, the processing device 21 controls the operation of the wireless communication device 24 to disable communication when GPS signals cannot be received. On the other hand, when the GPS signal can be received, the processing device 21 controls the operation of the wireless communication device 24 to enable communication (step S63). When the GPS signal cannot be received, the power consumption of the wireless communication device 24 can be suppressed by keeping the wireless communication device 24 in a communication disabled state. On the other hand, when the GPS signal can be received, the wireless communication device 24 is brought into a state capable of communication via the mobile communication network 5, and positioning based on the GPS signal or cell ID is started. By starting positioning, the lost object O1 can be quickly found.

The flowchart shown in FIG. 13 is an example. For example, when the GPS signal cannot be received, the processing device 21 controls the operation of the wireless communication device 24 to enable communication, and when the GPS signal can be received, the wireless The operation of the communication device 24 may be controlled to disable communication.

Further, in the slow chart shown in FIG. 13, a process is added in which the activation control unit 211 deactivates the wireless communication device 24 and the GPS receiver 25 when the GPS signal is not received again from the state in which it is being received. may

6. Modifications The present invention is not limited to the embodiments illustrated above. Specific modification modes are exemplified below. Two or more aspects arbitrarily selected from the following examples may be combined.

(1) In the first, second, and fourth embodiments described above, the wireless tag device 2 activates the wireless communication device 24 even when short-range wireless communication with the communication terminal 3 is disconnected. When the reception intensity of the beacon signal output from the communication terminal 3 at the wireless tag device 2 changes from a state exceeding a predetermined value to a state equal to or less than a predetermined value, the wireless tag device 2 activates the wireless communication device 24. good. Also, with respect to the GPS receiver 25, for example, when the reception strength of the beacon signal output from the communication terminal 3 at the wireless tag device 2 changes from a state exceeding a predetermined value to a state below a predetermined value, the wireless tag device 2 may activate the wireless communication device 24 .

(2) In each embodiment, the wireless tag device 2 activates the wireless communication device 24 when short-range wireless communication with one communication terminal 3 is disconnected. The wireless communication device 24 may be activated when the short-range wireless communication with is disconnected.

6. Others In each of the above-described embodiments, the storage device 22 is a recording medium readable by the processing device 21, and examples include ROM and RAM. , Blu-ray discs), smart cards, flash memory devices (e.g. cards, sticks, key drives), CD-ROMs (Compact Disc-ROMs), registers, removable discs, hard disks, floppies A disk, magnetic strip, database, server or other suitable storage medium. Note that the same applies to the storage device 32 as well. Also, the program may be transmitted from a network via an electric communication line. Also, the program may be transmitted from a communication network via an electric communication line.

Each embodiment described above, LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), It may be applied to systems utilizing other suitable systems and/or to next generation systems enhanced based on them.

In each of the above-described embodiments, the identification operation (for example, identification of location information by the base station) that is supposed to be performed by the base station may be performed by its upper node in some cases. In a network that includes one or more network nodes with a base station, various operations performed for communication with terminals may be performed by the base station and/or other network nodes other than the base station (e.g., Clearly, it can be done by MME or S-GW, etc., but not limited to these). Although the case where there is one network node other than the base station is exemplified above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).

In each of the above-described embodiments, the information, signals, etc. described may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of

The terms explained in this specification and/or terms necessary for understanding this specification may be replaced with terms having the same or similar meanings.

In each of the above-described embodiments, input/output information and the like may be stored in a specific location (for example, memory) or managed in a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.

In each of the above-described embodiments, the determination may be made by a value represented by 1 bit (0 or 1), by a true/false value (Boolean: true or false), or by a numerical value. may be performed by a comparison of (eg, a comparison with a predetermined value).

In the sequence charts exemplified in each embodiment described above, the order of each step may be changed. That is, the order of each process in the preferred aspect of the present invention is not limited to a specific order.

Each function illustrated in each embodiment described above is realized by any combination of hardware and software. Also, each function may be implemented by a single device, or may be implemented by two or more devices configured separately from each other.

The programs illustrated in the above embodiments, whether referred to as software, firmware, middleware, microcode, hardware description language, or by other names, include instructions, instruction sets, code, code segments, program code. , subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures or functions, or the like.
Software, instructions, etc. may also be sent and received over a transmission medium. For example, the software can be used to access websites, servers, or other When transmitted from a remote source, these wired and/or wireless technologies are included within the definition of transmission media.

In each of the foregoing, the terms "system" and "network" are used interchangeably.

In each of the embodiments described above, a base station may serve one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (for example, a small indoor base station RRH: Remote Communication services may also be provided by the Radio Head). The terms "cell" or "sector" refer to part or all of the coverage area of a base station and/or base station subsystem that serves communication in this coverage. Further, the terms "base station," "eNB," "cell," and "sector" may be used interchangeably herein. A base station may also be called a fixed station, a NodeB, an eNodeB (eNB), an access point, a femtocell, a small cell, and other terms.

Each device in each of the above-described embodiments may be a mobile station. A mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.

In each of the above-described embodiments, the term "connected" or any variation thereof means any direct or indirect connection or coupling between two or more elements, "" can include the presence of one or more intermediate elements between two elements. Connections between elements may be physical, logical, or a combination thereof. As used herein, two elements are referred to by the use of one or more wires, cables and/or printed electrical connections and, as some non-limiting and non-exhaustive examples, radio frequency They can be considered to be “connected” to each other through the use of electromagnetic energy, such as electromagnetic energy having wavelengths in the microwave, light (both visible and invisible) regions.

In each of the above-described embodiments, the phrase "based on" does not mean "based only on," unless expressly specified otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

To the extent that "including," "comprising," and variations thereof are used in each of the above-described embodiments, the terms "comprising" ” is intended to be inclusive. Furthermore, the term "or" as used in this specification or the claims is not intended to be an exclusive OR.

Throughout this application, where articles have been added by translation, such as a, an and the in English, these articles include the plural unless the context clearly indicates otherwise. .

It is clear to the person skilled in the art that the invention is not limited to the embodiments described herein. The present invention can be implemented as modifications and changes without departing from the spirit and scope of the present invention determined based on the description of the claims. Accordingly, the description herein is for illustrative purposes only and is not meant to be limiting in any way. Also, a plurality of aspects selected from the aspects exemplified in this specification may be combined.

2... Wireless tag device, 3... Communication terminal, 5... Mobile communication network, 21... Processing device, 22... Storage device, 23... Near field wireless communication device, 24... Wireless communication device, 25... GPS receiver, 26... Speed detection device 27 Power supply device 31 Processing device 32 Storage device 33 Short-range wireless communication device 34 Wireless communication device 35 Display device 36 Input device 42 Storage device 100 Positioning system 211 Operation control unit 212 Near field wireless communication management unit 213 Location information management unit 214 Speed management unit 215 Paging setting unit 216 Target setting unit D21 Pairing information D22 Destination information D23 Target information D31 Pairing information D32 Destination information L Importance O1 Target P0 Connection state P1 Paging signal P21 Positioning program P31 Positioning program , U...user, d1...interval, d2...interval, d3...interval.

Claims (6)

A mobile wireless terminal,
a receiving unit that receives a position specifying signal for specifying a position;
a detection unit that detects the moving speed of the mobile wireless terminal;
a wireless communication unit that communicates with a communication terminal via a mobile communication network;
controlling the operation of the wireless communication unit regarding reception of a call signal transmitted from the mobile communication network according to whether or not the position specifying signal can be received; a control unit that causes the wireless communication unit to transmit information about the position of the
The control unit
shortening the interval at which the wireless communication unit receives the call signal when the position specifying signal cannot be received than when the position specifying signal can be received;
When the position-specifying signal can be received, an interval at which the wireless communication unit receives the call signal is made longer than when the position-specifying signal cannot be received, or the wireless communication unit is instructed to receive the call signal. Portable wireless terminal to stop . A mobile wireless terminal,
a receiving unit that receives a position specifying signal for specifying a position;
a detection unit that detects the moving speed of the mobile wireless terminal;
a wireless communication unit that communicates with a communication terminal via a mobile communication network;
According to the type of object to which the portable radio terminal is attached and the purpose of use, the operation of the radio communication unit regarding reception of a call signal transmitted from the mobile communication network is controlled, and the A mobile wireless terminal, comprising: a control unit for transmitting information about the position of the mobile wireless terminal to the wireless communication unit. Further comprising a short-range wireless communication unit capable of short-range wireless communication with the communication terminal,
The control unit controls whether short-range wireless communication with the mobile wireless terminal transitions from connection to disconnection, or when the reception strength of a beacon signal output from the mobile wireless terminal changes from a state exceeding a predetermined value to a state below the predetermined value. 3. The mobile wireless terminal according to claim 1, wherein when changing to a state, the operation of said wireless communication unit is changed from a state in which communication is impossible to a state in which communication is possible. A mobile wireless terminal,
a receiving unit that receives a position specifying signal for specifying a position;
a detection unit that detects the moving speed of the mobile wireless terminal;
a wireless communication unit that communicates with a communication terminal via a mobile communication network;
a control unit that causes the wireless communication unit to transmit information about the position of the portable wireless terminal to the mobile communication network ;
Further comprising a short-range wireless communication unit capable of short-range wireless communication with the communication terminal,
The control unit
When the short-range wireless communication with the communication terminal transitions from connection to disconnection, or when the reception strength of the beacon signal output from the communication terminal transitions from a state exceeding a predetermined value to a state equal to or less than the predetermined value, A mobile wireless terminal that changes the operation of a wireless communication unit from a state in which communication is impossible to a state in which communication is possible . A mobile wireless terminal,
a receiving unit that receives a position specifying signal for specifying a position;
a detection unit that detects the moving speed of the mobile wireless terminal;
a wireless communication unit that communicates with a communication terminal via a mobile communication network;
a control unit that causes the wireless communication unit to transmit information regarding the location of the portable wireless terminal to the mobile communication network;
The control unit
When the position specifying signal cannot be received, the operation of the wireless communication unit is controlled to a state in which communication is disabled, and when the position specifying signal can be received, the operation of the wireless communication unit is controlled to a state in which communication is possible. mobile wireless terminal. A mobile wireless terminal according to any one of claims 1 to 5 ;
a communication terminal capable of mutual communication with the portable wireless terminal by short-range wireless communication,
The communication terminal is
A positioning system that notifies a user of the position of the mobile wireless terminal when communication with the mobile wireless terminal is established via the mobile communication network.

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