JP6761364B2 - Transmitter detection system, transmitter detection device, mobile terminal and transmitter detection method - Google Patents

Description

The present invention relates to a transmitter detection system, a transmitter detection device, a mobile terminal, and a transmitter detection method.

A wireless beacon transmitter is placed on the moving body, a receiver that receives the beacon signal is placed in a predetermined area, and identification information is extracted from the beacon signal received by the receiver to manage the position information of the moving body. The technology to do is known. In addition, a plurality of position-specific wireless tags are arranged in space, and a movable wireless tag reader identifies the position-specific wireless tag whose position information is unknown and the position-specific wireless tag, and the position of the position-specific wireless tag is identified. A technique for identifying the position of a wireless tag to be positioned using information is known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-145093

For example, a system that detects the position of a wireless tag by receiving a wireless signal from the wireless tag (transmitter) exemplified by the BLE (Bluetooth Low Energy) tag (Bluetooth is a registered trademark) by the receiver (receiver). Then, in order to prevent an area where the wireless tag cannot be detected, it is necessary to arrange a sufficient number of receivers.

However, since the device itself of the fixedly arranged receiver is expensive, it is expensive to install many receivers. Further, in order to install the receiver, it is necessary to secure a power source and install the device, which requires a lot of labor and cost. Furthermore, after the receiver is installed, a lot of costs are incurred for its maintenance.

In order to reduce the cost of installing such a receiver, a wireless tag (fixed transmitter) fixedly placed at a predetermined position is provided instead of the receiver, and the mobile terminal is detected by the wireless tag (transmitter). ) And when the fixed transmitter is detected at the same time, there is known a technology for detecting that the transmitter to be detected is located at a position associated with the fixed transmitter (hereinafter, this technology is referred to as "indirect". "Detection method"). Wireless tags are cheaper than receivers, and the cost of installing and maintaining wireless tags is also lower than receivers.

In such a technique, it is necessary for the mobile terminal to be able to detect the fixed transmitter as a premise of detecting the wireless tag to be detected. In order for the mobile terminal to detect the fixed transmitter, the mobile terminal needs to be located in the reception area, which is the area where the radio signal of the fixed transmitter reaches with a detectable strength. Therefore, even if the wireless tag to be detected is located in the vicinity of a certain fixed transmitter, the wireless tag is not detected unless the mobile terminal approaches the fixed transmitter. Therefore, a fixed transmitter that is difficult to be detected by a mobile terminal is inferior in the function of detecting the transmitter to be detected.

Therefore, the present invention has been made in view of the above problems, and in the above indirect detection method, by making it easy to detect a fixed transmitter that is difficult to be detected by a mobile terminal, the transmitter to be detected is appropriately detected. An object of the present invention is to provide a transmitter detection system, a transmitter detection device, a mobile terminal, and a transmitter detection method that can be used.

In order to solve the above problems, the transmitter detection system according to one embodiment of the present invention is a transmitter attached to a movable mobile body among transmitters that transmit a radio signal including identification information of the source. The transmitter can be detected by receiving a radio signal from the transmitter of the mobile transmitter and the fixed transmitter, which is a transmitter fixedly provided at a predetermined position among the transmitters. When the mobile terminal simultaneously detects by receiving the radio signals of the mobile transmitter and the fixed transmitter, the mobile transmitter detects that the mobile transmitter is located at a position associated with the fixed transmitter. A first fixed transmitter that is a fixed transmitter whose detection count is less than a predetermined threshold value based on aggregated information obtained by totaling the number of detections of a fixed transmitter by one or more mobile terminals for each fixed transmitter. The radio field strength of the first fixed transmitter is applied to one or more mobile terminals, the extraction unit that extracts the transmitter, the determination unit that determines that the radio wave strength of the radio signal emitted by the first fixed transmitter is increased, and the radio wave strength of the first fixed transmitter. The mobile terminal includes a transmission unit that transmits an intensity change instruction to be increased, and when the mobile terminal detects an instruction receiver unit that receives the intensity change instruction and a first fixed transmitter, the mobile terminal first is based on the intensity change instruction. It is provided with an instruction transmitter for transmitting an instruction for increasing the radio wave strength to the fixed transmitter of the above.

Further, the transmitter detection device according to one embodiment of the present invention includes a mobile transmitter which is a transmitter attached to a movable mobile body among transmitters that transmit a radio signal including identification information of the source. A mobile terminal capable of detecting a fixed transmitter, which is a transmitter fixed at a predetermined position among the transmitters, by receiving a radio signal from the transmitter, makes a mobile transmission. A transmitter in a transmitter detection system that detects that a mobile transmitter is located at a position associated with a fixed transmitter when it is detected simultaneously by receiving the radio signals of the device and the fixed transmitter. A first fixed transmitter, which is a detection device and is a fixed transmitter whose number of detections is less than a predetermined threshold based on aggregated information obtained by totaling the number of detections of a fixed transmitter by one or more mobile terminals for each fixed transmitter. The radio field strength of the first fixed transmitter is increased to one or more mobile terminals, the extraction unit that extracts the device, the determination unit that determines to increase the radio wave strength of the radio signal emitted by the first fixed transmitter, and the one or more mobile terminals. It is provided with a transmission unit for transmitting a strength change instruction to be caused.

Further, the transmitter detection device according to one embodiment of the present invention includes a mobile transmitter which is a transmitter attached to a movable mobile body among transmitters that transmit a radio signal including identification information of the source. A mobile terminal capable of detecting a fixed transmitter, which is a transmitter fixed at a predetermined position among the transmitters, by receiving a radio signal from the transmitter, makes a mobile transmission. A mobile terminal in a transmitter detection system that detects that a mobile transmitter is located at a position associated with a fixed transmitter when it is simultaneously detected by receiving the radio signals of the device and the fixed transmitter. An instruction receiving unit that receives an intensity change instruction that increases the radio wave intensity of the first fixed transmitter, a detecting unit that detects the transmitter by receiving a radio signal from the transmitter, and a detecting unit. When the first fixed transmitter is detected, an instruction transmitter that transmits an instruction to increase the radio wave intensity to the first fixed transmitter based on the intensity change instruction is provided.

Further, the transmitter detection device according to one embodiment of the present invention includes a mobile transmitter which is a transmitter attached to a movable mobile body among transmitters that transmit a radio signal including identification information of the source. A mobile terminal capable of detecting a fixed transmitter, which is a transmitter fixed at a predetermined position among the transmitters, by receiving a radio signal from the transmitter, makes a mobile transmission. A transmitter in a transmitter detection system that detects that a mobile transmitter is located at a position associated with a fixed transmitter when it is detected simultaneously by receiving the radio signals of the device and the fixed transmitter. A first fixed transmission that is a detection method and is a fixed transmitter whose number of detections is less than a predetermined threshold based on aggregated information obtained by totaling the number of detections of fixed transmitters by one or more mobile terminals for each fixed transmitter. An extraction step for extracting a device, a determination step for determining to increase the radio field strength of a radio signal emitted by the first fixed transmitter, and a first fixed transmitter when the first fixed transmitter is detected. It has an instruction transmission step of transmitting an instruction to increase the radio field strength.

When the mobile terminal simultaneously detects the mobile transmitter and the fixed transmitter, which are the transmitters to be detected, by receiving the respective wireless signals, the mobile transmitter is located at a position associated with the fixed transmitter. It is premised on the technology to detect what is being done. This technique is hereinafter referred to as "indirect detection method". According to the above embodiment, the fixed transmitters whose detection count is less than a predetermined threshold value are extracted based on the aggregated information obtained by totaling the detection counts of the fixed transmitters by one or more mobile terminals for each fixed transmitter. Fixed transmitters that are inferior in the detection function of mobile transmitters are extracted. Then, an intensity change instruction for increasing the radio field intensity of the first fixed transmitter, which is the extracted fixed transmitter, is transmitted to the mobile terminal, and the mobile terminal that receives the intensity change instruction detects the first fixed transmitter. Occasionally, an instruction to increase the radio field strength is transmitted to the first fixed transmitter, so that the reception area within which the radio signal of the first fixed transmitter reaches with a detectable strength is expanded. Therefore, since the first fixed transmitter is easily detected by the mobile terminal, the transmitter to be detected can be appropriately detected.

In the indirect detection method, by making it easier to detect a fixed transmitter that is difficult to be detected by a mobile terminal, it is possible to appropriately detect the transmitter to be detected.

It is a figure which shows the apparatus configuration of the transmitter detection system including the transmitter detection apparatus which concerns on this embodiment. It is a figure for demonstrating the technique (indirect detection method) for detecting the movement tag which is a premise in the transmitter detection system of this embodiment. It is a figure for demonstrating the problem to be solved by the transmitter detection system of this embodiment. It is a block diagram which shows the functional structure of a transmitter detection device. It is a block diagram which shows the functional structure of a mobile terminal. It is a hard block diagram of a transmitter detection device. It is a figure which shows the structure of the aggregated information storage part, and the example of the stored data. It is a figure which shows the state which the reception area of a fixed tag is expanded. It is a flowchart which shows the processing content of the transmitter detection method of this embodiment. It is a figure which shows the structure of a transmitter detection program. It is a figure which shows the structure of the transmitter detection terminal program.

An embodiment of the transmitter detection system according to the present invention will be described with reference to the drawings. If possible, the same parts will be designated by the same reference numerals, and duplicate description will be omitted.

FIG. 1 is a diagram showing a device configuration of a transmitter detection system 1 according to the present embodiment. As shown in FIG. 1, the transmitter detection system 1 includes a transmitter detection device 10, a mobile terminal 20, and a receiver R (receiver). The transmitter detection device 10, the mobile terminal 20, and the receiver R can communicate with each other via the network N. Although two receivers R are shown in FIG. 1, the number of receivers is not limited. Further, the number of mobile terminals 20 is not limited to the three shown in FIG.

In the present embodiment, the transmitter detection device 10 is a mobile tag (movement) which is a wireless tag attached to a movable mobile body among wireless tags (transmitters) that transmit a wireless signal (for example, a beacon signal). Detects the location of the transmitter). A wireless tag is a device that transmits a wireless signal including identification information of the wireless tag, and is exemplified by, for example, a BLE (Bluetooth Low Energy) tag (Bluetooth is a registered trademark; the same applies hereinafter).

The mobile terminal 20 is a mobile terminal device, and may be, for example, a portable personal computer, or a mobile terminal such as a high-performance mobile phone (smartphone) or a mobile phone. In the present embodiment, the mobile terminal 20 has a function of a receiver capable of receiving a wireless signal from a wireless tag. The receiver R is a device that detects a wireless tag by receiving a wireless signal from the wireless tag.

FIG. 2 is a diagram for explaining a technique for detecting a movement tag which is a premise in the transmitter detection system 1 of the present embodiment. In the transmitter detection system 1, in addition to the detection of the mobile tag TM by receiving the wireless signal from the mobile tag TM by the receiver R, the fixed tag (fixed transmitter) which is a wireless tag fixed at a predetermined position is provided. And the mobile tag TM is detected using the mobile terminal 20.

As shown in FIG. 2, a fixed tag TF is provided in a certain area, and the fixed tag TF constitutes a reception area AF. The reception area composed of the wireless tag is an area where the wireless signal of the wireless tag reaches with a detectable intensity, and is mainly defined by the intensity of the wireless signal emitted by the wireless tag. A moving tag TM is attached to the moving body MO to be detected in order to detect the moving body MO. The movement tag TM constitutes the reception area AM. Then, the mobile terminal 20 capable of detecting the wireless tag by receiving the wireless signal from the wireless tag is located in the reception area AF and also in the reception area AM. In such a case, the mobile terminal 20 receives the radio signal of the fixed tag TF and the radio signal of the mobile tag TM, so that the mobile terminal 20 simultaneously detects the fixed tag TF and the mobile tag TM.

In the transmitter detection system 1, when the mobile terminal 20 acquires the information that the fixed tag TF and the mobile tag TM are detected at the same time, the mobile tag TM is located at a position associated with the fixed tag TF. Can be detected. Specifically, the mobile tag TM may be located within the sum of the distances reached by the radio signals of the fixed tag TF and the mobile tag TM from the fixed tag TF with an intensity that can be detected by the mobile terminal 20. Detected. The technique for detecting the location of the moving tag TM in this way is hereinafter referred to as an indirect detection method. In the indirect detection method, the fixed tag TF is arranged at a predetermined position in the space for detecting the moving tag TM. In order for the mobile tag TM to be detected, it is necessary for the mobile terminal 20 to detect the fixed tag TF.

FIG. 3 is a diagram for explaining a problem to be solved in the transmitter detection system 1 of the present embodiment. In the example shown in FIG. 3, fixed tags TA, TB and receiver R are arranged in a certain space PA. The fixed tags TA and TB respectively constitute reception areas AA and AB, which are areas where the radio signal of the fixed tag reaches with a detectable strength. The receiver R constitutes a detection area AR, which is an area in which the receiver can detect a radio signal from a radio tag located in the area.

In such a space PA, when the mobile terminal 20 moves as indicated by the arrow r, the fixed tag TA is not detected by the mobile terminal 20 because the mobile terminal 20 does not pass through the reception area AA. Therefore, in such a case, even if the movement tag TM to be detected is located in the vicinity of the fixed tag TA, the fixed tag TA and the reception area AA do not exert the function of detecting the detection target. TM is not detected. The transmitter detection system 1 of the present embodiment appropriately detects the mobile tag TM to be detected by making it easy to detect a fixed tag that is difficult to be detected by the mobile terminal 20, such as the fixed tag TA in FIG. Is.

FIG. 4 is a block diagram showing a functional configuration of the transmitter detection device 10. As shown in FIG. 4, the transmitter detection device 10 functionally includes an acquisition unit 11, an aggregation unit 12, an extraction unit 13, a determination unit 14, and a transmission unit 15. Further, the transmitter detection device 10 can access a storage unit such as the total information storage unit 17. As shown in FIG. 4, the aggregated information storage unit 17 may be configured as a storage device capable of communicating with the transmitter detection device 10, or may be configured inside the transmitter detection device 10. Each functional unit of the transmitter detection device 10 will be described in detail later.

FIG. 5 is a block diagram showing a functional configuration of the mobile terminal 20. As shown in FIG. 5, the mobile terminal 20 includes a detection unit 21, a detection information transmission unit 22, an instruction reception unit 23, an instruction transmission unit 24, and a reporting unit 25. Each functional part of the mobile terminal 20 will be described in detail later.

The block diagrams shown in FIGS. 4 and 5 show blocks for functional units. These functional blocks (components) are realized by any combination of hardware and / or software. Further, the means for realizing each functional block is not particularly limited. That is, each functional block may be realized by one physically and / or logically coupled device, or directly and / or indirectly by two or more physically and / or logically separated devices. (For example, wired and / or wireless) may be connected and realized by these plurality of devices.

For example, the transmitter detection device 10 according to the embodiment of the present invention may function as a computer. FIG. 6 is a diagram showing an example of the hardware configuration of the transmitter detection device 10 according to the present embodiment. The transmitter detection device 10 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. Further, the mobile terminal 20 shown in FIG. 5 may also be configured as a computer device in the same manner as the transmitter detection device 10.

In the following description, the word "device" can be read as a circuit, a device, a unit, or the like. The hardware configuration of the transmitter detection device 10 may be configured to include one or more of the devices shown in FIG. 6, or may be configured not to include some of the devices.

Each function of the transmitter detection device 10 is performed by loading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs a calculation, and communication by the communication device 1004, the memory 1002, and the memory 1002. It is realized by controlling the reading and / or writing of data in the storage 1003.

Processor 1001 operates, for example, an operating system to control the entire computer. The processor 1001 may be composed of a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like. For example, each of the functional units 11 to 15 shown in FIG. 4 may be realized by the processor 1001.

Further, the processor 1001 reads a program (program code), a software module, and data from the storage 1003 and / or the communication device 1004 into the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used. For example, each functional unit 11 to 14 of the transmitter detection device 10 may be realized by a control program stored in the memory 1002 and operated by the processor 1001. Although it has been described that the various processes described above are executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. Processor 1001 may be mounted on one or more chips. The program may be transmitted from the network via a telecommunication line.

The memory 1002 is a computer-readable recording medium, and is composed of at least one such as a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory). May be done. The memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like. The memory 1002 can store a program (program code), a software module, or the like that can be executed to carry out the wireless communication method according to the embodiment of the present invention.

The storage 1003 is a computer-readable recording medium, and is, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like. The storage 1003 may be referred to as an auxiliary storage device. The storage medium described above may be, for example, a database, server or other suitable medium containing memory 1002 and / or storage 1003.

The communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.

The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

Further, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be composed of a single bus or may be composed of different buses between the devices.

Further, the transmitter detection device 10 includes hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include, and a part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented on at least one of these hardware.

With reference to FIGS. 4 and 5 again, first, the preparatory process in the transmitter detection system 1 of the present embodiment will be described. The preparatory process is a process of generating aggregated information, which is information obtained by aggregating the number of detections of fixed tags by one or more mobile terminals 20 for each fixed tag. In order to generate the aggregated information, the detection unit 21 of the mobile terminal 20 receives the wireless signal from the wireless tag. The radio signal includes a tag ID (identification information) that identifies the source radio tag.

The detection information transmission unit 22 of the mobile terminal 20 transmits the tag ID included in the radio signal received by the detection unit 21 to the transmitter detection device 10 as detection information. As a result, the mobile terminal 20 can play the role of a receiver in the indirect detection method described above, and can generate aggregated information in the transmitter detection device 10.

The acquisition unit 11 of the transmitter detection device 10 acquires the detection information transmitted from the mobile terminal 20. The acquisition unit 11 can acquire detection information from a plurality of mobile terminals 20.

Based on the detection information acquired by the acquisition unit 11, the aggregation unit 12 of the transmitter detection device 10 aggregates the number of detections for each fixed tag by the mobile terminal 20 to generate aggregation information. Aggregation of the number of detections based on the detection information and generation of the aggregated information are performed, for example, based on the detection information in a predetermined period.

FIG. 7 is a diagram showing an example of the configuration of the aggregated information storage unit 17 and the stored data. As shown in FIG. 7, the aggregation information storage unit 17 associates the tag ID that identifies the fixed tag with the number of detections of the fixed tag detected by one or more mobile terminals 20 for each fixed tag. I remember the information. The aggregation unit 12 aggregates the number of detections for each fixed tag by the mobile terminal 20, associates the aggregated detection number with the tag ID, and stores it in the aggregation information storage unit 17. In the example of FIG. 7, the fixed tag TA is identified by the tag ID “AAA”, the fixed tag TB is identified by the tag ID “BBB”, and the fixed tag TC is identified by the tag ID “CCC”. Shall be.

Next, the control process for controlling the radio field strength of the fixed tag in the transmitter detection system 1 will be described. For the control process, the extraction unit 13 of the transmitter detection device 10 extracts a fixed tag (first fixed transmitter) whose number of detections is less than a predetermined threshold value based on the aggregated information. For example, assuming that the predetermined threshold value for the number of detections is 100, the extraction unit 13 refers to the total information of the total information storage unit 17 and is identified by the tag ID "AAA" in which the number of detections is "20". Extract the fixed tag TA.

The determination unit 14 of the transmitter detection device 10 determines that the radio field intensity of the radio signal emitted by the fixed tag extracted by the extraction unit 13 is increased. Specifically, the determination unit 14 determines that the radio field intensity of the radio signal emitted by the fixed tag TA is increased. The increase in radio wave intensity may be obtained by adding a predetermined value to the conventional intensity value, or by multiplying the intensity value by a predetermined ratio.

The transmission unit 15 of the transmitter detection device 10 transmits an intensity change instruction for increasing the radio field intensity of the fixed tag extracted by the extraction unit 13 to one or more mobile terminals 20. Specifically, the transmission unit 15 transmits an intensity change instruction for increasing the radio field intensity of the radio signal emitted by the fixed tag TA to one or more mobile terminals 20. The one or more mobile terminals 20 may be, for example, all of the mobile terminals 20 that have transmitted the detection information to the transmitter detection device 10. Further, the one or more mobile terminals 20 may be all of the mobile terminals 20 that are aware in advance that they exist in the target area (for example, space PA) for detecting the mobile tag TM. In this case, the transmitter detection device 10 may have a list of mobile terminals 20 existing in the target area in advance.

The instruction receiving unit 23 of the mobile terminal 20 receives the strength change instruction from the transmitter detection device 10.

When the detection unit 21 detects a fixed tag whose radio wave strength is to be increased in the strength change instruction, the instruction transmitting unit of the mobile terminal 20 responds to the detected fixed tag based on the strength change instruction. And sends an instruction to increase the signal strength. Specifically, since the mobile terminal 20 arbitrarily moving in the target area for detecting the moving tag TM detects the fixed tag according to its location, the detection unit 21 detects the fixed tag during the movement. When TA is detected, the mobile terminal 20 is located in the reception area AA composed of the fixed tag TA and in the vicinity of the fixed tag TA. Then, at the timing when the fixed tag TA is detected by the detection unit 21, the instruction transmitting unit 24 transmits an instruction to increase the radio field strength to the fixed tag TA.

Upon receiving the instruction to increase the radio field strength, the fixed tag TA implements the change control for increasing the radio wave strength according to the instruction. FIG. 8 is a diagram showing an example of change control by the fixed tag TA. As shown in FIG. 8, when the radio field intensity of the fixed tag TA is increased, the reception area AA1 before the change is expanded as shown in the reception area AA2. By expanding the reception area AA in this way, even when the mobile terminal 20 moves as shown by the arrow r, the mobile terminal 20 passes through the reception area AA2, so that the fixed tag TA Can be detected by the mobile terminal 20. Therefore, when the mobile tag TM to be detected is located in the vicinity of the fixed tag TA, the mobile terminal 20 detects the fixed tag TA and the mobile tag TM at the same time, so that the mobile tag TM is detected by the indirect detection method. ..

When the change control is completed, the fixed tag TA returns the information that the change control is completed to the mobile terminal 20. When the reporting unit 25 of the mobile terminal 20 acquires the information that the change control is completed, the reporting unit 25 reports to the transmitter detection device 10 the instruction completion notification that is the information that the control related to the strength change instruction is completed.

When the transmission unit 15 of the transmitter detection device 10 receives the instruction completion notification from the mobile terminal 20, it transmits a stop instruction for stopping the strength change in the strength change instruction to one or more mobile terminals 20. That is, when the instruction completion notification is received, it means that the purpose of expanding the reception area of the fixed tag whose number of detections is less than a predetermined threshold has already been achieved. The terminal 20 is notified that the process related to the instruction is unnecessary. As a result, unnecessary processing for increasing the radio field strength of the fixed tag in the mobile terminal 20 is prevented.

Next, a transmitter detection method in the transmitter detection system 1 will be described with reference to FIG. FIG. 9 is a flowchart showing the processing contents of the transmitter detection method of the present embodiment.

In step S1, the totaling unit 12 of the transmitter detection device 10 totals the number of detections for each fixed tag by the mobile terminal 20 for a predetermined period based on the detection information acquired by the acquisition unit 11. Then, the aggregation unit 12 generates aggregation information.

In step S2, the extraction unit 13 of the transmitter detection device 10 refers to the aggregated information and determines whether or not there is a fixed tag whose detection number is less than a predetermined threshold value. If it is determined that there is a fixed tag whose number of detections is less than a predetermined threshold value, the process proceeds to step S3. On the other hand, if it is not determined that there is a fixed tag whose detection number is less than a predetermined threshold value, the process returns to step S1.

In step S3, the extraction unit 13 of the transmitter detection device 10 extracts a fixed tag whose number of detections is less than a predetermined threshold value as the first fixed tag in the aggregated information. In the following step S4, the determination unit 14 of the transmitter detection device 10 determines to increase the radio field intensity of the radio signal emitted by the first fixed tag extracted in step S3. Then, in step S5, the transmission unit 15 of the transmitter detection device 10 transmits an intensity change instruction for increasing the radio wave intensity of the first fixed tag to one or more mobile terminals 20.

In step S11, the instruction receiving unit 23 of one or more mobile terminals 20 receives the intensity change instruction transmitted in step S5. In the following step S12, the instruction transmission unit 24 of the mobile terminal 20 that has received the strength change instruction determines whether or not the first fixed tag that is the target of the strength change instruction is detected by the detection unit 21. If it is determined that the first fixed tag has been detected, the process proceeds to step S13. On the other hand, if it is not determined that the first fixed tag has been detected, the determination process of step S12 is repeated.

In step S13, the instruction transmission unit 24 of the mobile terminal 20 transmits an instruction to increase the radio field intensity to the first fixed tag in response to the detection of the first fixed tag by the detection unit 21. When the change control for increasing the radio field intensity in the first fixed tag is completed in response to the instruction transmitted in step S13, information to that effect is returned from the first fixed tag. In step S14, the reporting unit 25 of the mobile terminal 20 determines whether or not it has received the information that the change control from the first fixed tag is completed. When it is determined that the information indicating that the change control is completed is received from the first fixed tag, the process proceeds to step S15. On the other hand, if it is not determined that the information indicating that the change control is completed is received from the first fixed tag, the determination process of step S14 is repeated.

In step S15, the reporting unit 25 of the mobile terminal 20 transmits an instruction completion notification, which is information indicating that the change control related to the strength change instruction is completed, to the transmitter detection device 10.

In step S6, the transmission unit 15 of the transmitter detection device 10 receives the instruction completion notification transmitted in step S15. In step S7, the transmission unit 15 transmits a stop instruction for stopping the intensity change in the intensity change instruction to all of one or more mobile terminals 20 that have transmitted the intensity change instruction in step S5.

Next, a transmitter detection program for causing the computer to function as the transmitter detection device 10 of the present embodiment will be described. FIG. 10 is a diagram showing the configuration of the transmitter detection program P10.

The transmitter detection program P10 includes a main module m10, an acquisition module m11, an aggregation module m12, an extraction module m13, a determination module m14, and a transmission module m15 that collectively control the transmitter detection process in the transmitter detection device 10. Will be done. Then, each module m11 to m15 realizes each function for the acquisition unit 11, the aggregation unit 12, the extraction unit 13, the determination unit 14, and the transmission unit 15 in the transmitter detection device 10. The transmitter detection program P10 may be transmitted via a transmission medium such as a communication line, or may be stored in the recording medium D10 as shown in FIG. ..

FIG. 11 is a diagram showing a configuration of a transmitter detection terminal program P20 for making a computer function as a mobile terminal 20 of the present embodiment.

The transmitter detection terminal program P20 includes a main module m20, a detection module m21, a detection information transmission module m22, an instruction reception module m23, an instruction transmission module m24, and a report module m25 that collectively control processing in the mobile terminal 20. Will be done. Then, each module m21 to m25 realizes each function for the detection unit 21, the detection information transmission unit 22, the instruction reception unit 23, the instruction transmission unit 24, and the reporting unit 25 in the mobile terminal 20. The transmitter detection terminal program P20 may be transmitted via a transmission medium such as a communication line, or may be stored in the recording medium D20 as shown in FIG. Good.

In the transmitter detection system 1, the transmitter detection device 10, the mobile terminal 20, the transmitter detection method, the transmitter detection program P10 and the transmitter detection terminal program P20 of the present embodiment described above, the mobile terminals 20 are fixed by one or more mobile terminals 20. Since fixed tags whose detection count is less than a predetermined threshold are extracted based on the aggregated information obtained by totaling the number of tag detections for each fixed tag, fixed tags that are inferior as the movement tag detection function in the indirect detection method are extracted. .. Then, when an intensity change instruction for increasing the radio field intensity of the first fixed tag, which is the extracted fixed tag, is transmitted to the mobile terminal 20, and the mobile terminal 20 that receives the intensity change instruction detects the first fixed tag. Since the instruction to increase the radio field strength is transmitted to the first fixed tag, the reception area within which the radio signal of the first fixed tag reaches with a detectable strength is expanded. Therefore, since the first fixed tag is easily detected by the mobile terminal 20, the mobile tag to be detected can be appropriately detected.

Further, in the transmitter detection system according to another form, an acquisition unit that acquires detection information including identification information of a fixed transmitter detected by the mobile terminal and a detection unit that is acquired by the acquisition unit are transmitted from the mobile terminal. Based on the information, a totaling unit that totals the number of detections for each fixed transmitter by the mobile terminal and generates aggregated information may be further provided.

According to the above embodiment, the identification information detected by the mobile terminal is aggregated and the aggregated information is generated, so that the fixed transmitter whose detection number is less than a predetermined threshold value is appropriately extracted.

Further, in the transmitter detection system according to another form, when the transmitter receives an instruction completion notification from the mobile terminal indicating that an instruction for increasing the radio field strength has been transmitted to the first fixed transmitter. , The stop instruction for stopping the change in strength in the strength change instruction may be transmitted to one or more mobile terminals.

According to the above embodiment, after the radio field strength of the radio signal in the first fixed transmitter is surely increased, the stop instruction is transmitted to one or more mobile terminals, so that in those mobile terminals, Unnecessary processing for increasing the radio field strength of the first fixed transmitter is prevented.

Although the present embodiment has been described in detail above, it is clear to those skilled in the art that the present embodiment is not limited to the embodiment described in the present specification. This embodiment can be implemented as an amended or modified mode without departing from the gist and scope of the present invention determined by the description of the claims. Therefore, the description herein is for purposes of illustration only and does not have any limiting implications for this embodiment.

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

The order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in the present specification may be changed as long as there is no contradiction. For example, the methods described herein present elements of various steps in an exemplary order, and are not limited to the particular order presented.

Information and the like can be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input / output may be performed via a plurality of network nodes.

The input / output information and the like may be stored in a specific location (for example, memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or added. The output information and the like may be deleted. The input information or the like may be transmitted to another device.

The determination may be made by a value represented by 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparing numerical values (for example, a predetermined value). It may be done by comparison with the value).

Each aspect / embodiment described in the present specification may be used alone, in combination, or switched with execution. Further, the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit notification, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.

Software is an instruction, instruction set, code, code segment, program code, program, subprogram, software module, whether called software, firmware, middleware, microcode, hardware description language, or another name. , Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted to mean.

Further, software, instructions, and the like may be transmitted and received via a transmission medium. For example, the software uses wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave to websites, servers, or other When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission medium.

The information, signals, etc. described herein may be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.

The terms described herein and / or the terms necessary for understanding the present specification may be replaced with terms having the same or similar meanings.

The terms "system" and "network" as used herein are used interchangeably.

Further, the information, parameters, etc. described in the present specification may be represented by an absolute value, a relative value from a predetermined value, or another corresponding information. ..

The phrase "based on" as used herein does not mean "based on" unless otherwise stated. In other words, the statement "based on" means both "based only" and "at least based on".

When the terms "first", "second", etc. are used herein, any reference to the elements does not generally limit the quantity or order of those elements. These designations can be used herein as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.

As long as "include", "including", and variations thereof are used within the scope of the present specification or claims, these terms are similar to the term "comprising". Is intended to be inclusive. Furthermore, the term "or" as used herein or in the claims is intended not to be an exclusive OR.

In the present specification, a plurality of devices shall be included unless the device is apparently only one in the context or technically.

In the whole of this disclosure, the plural shall be included unless the context clearly indicates the singular.

1 ... Transmitter detection system, 10 ... Transmitter detection device, 11 ... Acquisition unit, 12 ... Aggregation unit, 13 ... Extraction unit, 14 ... Judgment unit, 15 ... Transmission unit, 17 ... Aggregation information storage unit, 20 ... Mobile terminal , 21 ... detection unit, 22 ... detection information transmission unit, 23 ... instruction reception unit, 24 ... instruction transmission unit, 25 ... report unit, D10, D20 ... recording medium, m10 ... main module, m11 ... acquisition module, m12 ... total Module, m13 ... extraction module, m14 ... judgment module, m15 ... transmission module, m20 ... main module, m21 ... detection module, m22 ... detection information transmission module, m23 ... instruction reception module, m24 ... instruction transmission module, m25 ... report module , P10 ... Caller detection program, P20 ... Caller detection terminal program.

Claims (5)

Among the transmitters that transmit wireless signals including the identification information of the source, the mobile transmitter, which is a transmitter attached to a movable mobile body, and the transmitter, which is fixedly provided at a predetermined position among the transmitters. A mobile terminal capable of detecting a fixed transmitter, which is a transmitted transmitter, by receiving a radio signal from the transmitter, transmits each radio signal of the mobile transmitter and the fixed transmitter. A transmitter detection system that detects that the mobile transmitter is located at a position associated with the fixed transmitter when the mobile transmitter is detected at the same time by receiving the signal.
The first fixed transmitter, which is a fixed transmitter whose detection count is less than a predetermined threshold value, is extracted based on the aggregated information obtained by totaling the number of detections of the fixed transmitter by one or more mobile terminals for each fixed transmitter. Extraction part and
A determination unit that determines to increase the radio field strength of the radio signal emitted by the first fixed transmitter, and
The one or more mobile terminals are provided with a transmission unit for transmitting an intensity change instruction for increasing the radio wave intensity of the first fixed transmitter.
The mobile terminal
An instruction receiving unit that receives the strength change instruction and
When the first fixed transmitter is detected, an instruction transmitter that transmits an instruction to increase the radio field intensity to the first fixed transmitter based on the intensity change instruction, and an instruction transmitter.
A transmitter detection system equipped with. An acquisition unit that acquires detection information including identification information of a fixed transmitter detected by the mobile terminal and transmitted from the mobile terminal.
Based on the detection information acquired by the acquisition unit, the aggregation unit that aggregates the number of detections for each fixed transmitter by the mobile terminal and generates the aggregation information, and the aggregation unit.
The transmitter detection system according to claim 1, further comprising. When the transmission unit receives an instruction completion notification from the mobile terminal indicating that an instruction for increasing the radio field intensity has been transmitted to the first fixed transmitter, the transmission unit changes the intensity in the intensity change instruction. Send a stop instruction to stop to one or more mobile terminals,
The transmitter detection system according to claim 1 or 2. Among the transmitters that transmit wireless signals including the identification information of the source, the mobile transmitter, which is a transmitter attached to a movable mobile body, and the transmitter, which is fixedly provided at a predetermined position among the transmitters. A mobile terminal capable of detecting a fixed transmitter, which is a transmitted transmitter, by receiving a radio signal from the transmitter, transmits each radio signal of the mobile transmitter and the fixed transmitter. A transmitter detection device in a transmitter detection system that detects that the mobile transmitter is located at a position associated with the fixed transmitter when the mobile transmitter is detected at the same time by receiving the signal.
The first fixed transmitter, which is a fixed transmitter whose detection count is less than a predetermined threshold value, is extracted based on the aggregated information obtained by totaling the number of detections of the fixed transmitter by one or more mobile terminals for each fixed transmitter. Extraction part and
A determination unit that determines to increase the radio field strength of the radio signal emitted by the first fixed transmitter, and
A transmission unit that transmits an intensity change instruction for increasing the radio field intensity of the first fixed transmitter to the one or more mobile terminals.
A transmitter detector equipped with. Among the transmitters that transmit wireless signals including the identification information of the source, the mobile transmitter, which is a transmitter attached to a movable mobile body, and the transmitter, which is fixedly provided at a predetermined position among the transmitters. A mobile terminal capable of detecting a fixed transmitter, which is a transmitted transmitter, by receiving a radio signal from the transmitter, transmits each radio signal of the mobile transmitter and the fixed transmitter. A transmitter detection method in a transmitter detection system that detects that the mobile transmitter is located at a position associated with the fixed transmitter when the mobile transmitter is detected at the same time by receiving the signal.
The first fixed transmitter, which is a fixed transmitter whose detection count is less than a predetermined threshold value, is extracted based on the aggregated information obtained by totaling the number of detections of the fixed transmitter by one or more mobile terminals for each fixed transmitter. Extraction steps and
A determination step for determining to increase the radio field strength of the radio signal emitted by the first fixed transmitter, and
An instruction transmission step of transmitting an instruction to increase the radio field strength to the first fixed transmitter when the first fixed transmitter is detected, and
Transmitter detection method with.

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