WO2015098448A1 - 送信装置、信号送信システム、信号送信間隔変更方法及びプログラム - Google Patents

送信装置、信号送信システム、信号送信間隔変更方法及びプログラム Download PDF

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Publication number
WO2015098448A1
WO2015098448A1 PCT/JP2014/082011 JP2014082011W WO2015098448A1 WO 2015098448 A1 WO2015098448 A1 WO 2015098448A1 JP 2014082011 W JP2014082011 W JP 2014082011W WO 2015098448 A1 WO2015098448 A1 WO 2015098448A1
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WO
WIPO (PCT)
Prior art keywords
signal
transmission
interval
beacon device
unit
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PCT/JP2014/082011
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English (en)
French (fr)
Japanese (ja)
Inventor
政一 山内
Original Assignee
アプリックスＩｐホールディングス株式会社
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Publication of WO2015098448A1 publication Critical patent/WO2015098448A1/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention provides, for example, a transmission device, a signal transmission system, a signal transmission interval changing method, and a signal transmission system that transmit a signal defined by Bluetooth (registered trademark) LE (Low Energy) standard (hereinafter abbreviated as “BLE standard”), and Regarding the program.
  • BLE standard Bluetooth (registered trademark) LE (Low Energy) standard
  • beacon devices compliant with the BLE standard have been placed in supermarkets, convenience stores, department stores, specialty stores, etc., and information such as product information and coupons (hereinafter referred to as “service information”) on mobile terminals held by users.
  • service information information such as product information and coupons
  • the portable terminal displays service information interpreted by an application installed in the portable terminal on the display unit of the portable terminal.
  • the BLE standard is one of short-range wireless communication technologies. This BLE standard stipulates that a star network topology in which a plurality of peripherals are connected to one central is formed.
  • the frequency band specified by the BLE standard is the 2.4 GHz band.
  • the BLE standard stipulates that a mechanism called adaptive frequency hopping is used in which this frequency band is divided into 40 channels so as to avoid interference and interference channels.
  • Peripheral corresponds to the above-described beacon device, and central corresponds to the above-described portable terminal.
  • the peripheral (beacon device) transmits an advertising packet as a beacon signal defined by the BLE standard and defined by the BLE standard at an advertising interval defined as a predetermined transmission interval.
  • the central (mobile terminal) can establish a connection with the central through a predetermined operation.
  • Patent Document 1 As a technique for a beacon device to transmit a beacon signal at a constant period and a mobile terminal that has received the beacon signal to establish a wireless connection with the beacon device, for example, one disclosed in Patent Document 1 is disclosed.
  • This Patent Document 1 relates to a communication device that shifts to a power saving state in a state where operation is stopped for a predetermined time and maintains a wireless connection state with an external device by a response to a beacon signal from a wirelessly connected external device.
  • This Patent Document 1 relates to a communication device that shifts to a power saving state in a state where operation is stopped for a predetermined time and maintains a wireless connection state with an external device by a response to a beacon signal from a wirelessly connected external device.
  • the 2.4 GHz band is a frequency band used by many devices such as a microwave oven and WiFi (registered trademark). For this reason, in an environment where these devices are in the vicinity of the beacon device, radio waves output from the devices may interfere with each other, and the mobile terminal may not be able to correctly receive the advertising packet transmitted by the beacon device.
  • the beacon device consumes power accordingly. For this reason, when the cycle of the transmission interval is set to be short, the beacon device consumes power wastefully in situations such as when the store is closed or there are no users.
  • Patent Document 1 discloses that a camera as a communication device controls the transmission interval of a beacon signal transmitted from an access point.
  • the beacon device While one beacon device establishes a connection with one mobile terminal, the beacon device cannot establish a connection with another mobile terminal. For this reason, when a large number of mobile terminals are in the vicinity of the beacon device, while one mobile terminal that has established a connection instructs the beacon device to change the advertising interval, other mobile terminals Cannot establish a connection with this beacon device. For this reason, the intended service information cannot be provided from the beacon device to other portable terminals.
  • the beacon signal transmission interval since the beacon signal transmission interval must be operated by the mobile terminal on the user side, there is a problem that the operation becomes complicated for the user.
  • the present invention has been made in view of such a situation, and it is possible to improve the possibility that a mobile terminal can receive a signal even in an environment where radio waves having a frequency that may interfere with each other are transmitted.
  • the purpose is to reduce the power consumption associated with the transmission of.
  • a transmission unit transmits a signal at a predetermined transmission interval, and receives a detection signal indicating that a mobile terminal or a user who carries the mobile terminal exists in the vicinity. And based on the received detection signal, control which changes the transmission interval of a signal with respect to a transmission part is performed.
  • a mobile terminal existing in the vicinity of the transmission device can easily receive a signal transmitted from the transmission device. Further, since the signal transmission interval is changed when the portable terminal or the user carrying the portable terminal is present in the vicinity of the transmission interval, the transmission apparatus can suppress power consumption associated with signal transmission.
  • FIG. 5A shows a configuration example of an advertising event
  • FIG. 5B shows an advertising interval when a smartphone is not detected
  • FIG. 5C shows an advertising interval when a smartphone is detected.
  • It is a block diagram which shows the internal structural example of the beacon apparatus which concerns on the 2nd example of an embodiment of this invention, and a smart phone.
  • It is a flowchart shows the operation example of the beacon apparatus which concerns on the 2nd Example of this invention.
  • a transmission apparatus according to the first embodiment of the present invention will be described below with reference to FIGS.
  • signal transmission is performed by cooperation of functional blocks described later.
  • components having substantially the same function or configuration are denoted by the same reference numerals, and redundant description is omitted.
  • FIG. 1 is an explanatory diagram showing the inside of a convenience store showing the positional relationship between a beacon device and a smartphone.
  • the table 6 is provided with a register device 3 that is used for settlement of commodities.
  • a beacon device 1 (an example of a transmission device) that transmits an advertisement signal defined by the Bluetooth (registered trademark) standard is installed on the smartphone 2.
  • This advertisement signal is a beacon signal, and is used as an example of a signal transmitted by the beacon device 1 at a predetermined transmission interval.
  • the beacon apparatus 1 is transmitting the advertising packet comprised by the advertisement signal to the circumference
  • the table 7 is provided with a microwave oven 4 that is used for warming up the products settled by the user. Then, in order to provide the user 8 with a connection service to the Internet, there are cases where WiFi (registered trademark) radio waves are transmitted from an access point (not shown).
  • WiFi registered trademark
  • the user 8 places a product (not shown) that he / she wishes to pay on the table 6 table.
  • the user 8 holds the smartphone 2 over the beacon device 1 during the checkout of the product, and performs an operation of placing the smartphone 2 in the vicinity of the beacon device 1.
  • a predetermined communication process is performed between the beacon device 1 and the smartphone 2. This communication process will be described later.
  • the service information is transmitted from the beacon device 1 to the smartphone 2, and the service information (for example, discount information “30% off”) is displayed on the smartphone 2.
  • the user 8 shows the service information displayed on the smartphone 2 to the store clerk 5.
  • the store clerk 5 reads the barcode attached to the product or the like using a barcode reader (not shown), and performs discount settlement when inputting the settlement information to the register device 3.
  • the user 8 can purchase a product or the like at a discount price.
  • FIG. 2 is a block diagram illustrating an internal configuration example of the beacon device 1 and the smartphone 2.
  • the signal transmission system according to the present embodiment includes a beacon device 1 and a smartphone 2.
  • the beacon device 1 includes a control unit 11, a storage unit 12, a transmission unit 13, a light receiving unit 14, and a power supply unit 15.
  • the control unit 11 is constituted by, for example, a CPU (Central Processing Unit) and controls the operation of each unit in the beacon device 1. Further, the control unit 11 controls the transmission unit 13 to change the signal transmission interval based on a detection signal indicating that the smartphone 2 exists in the vicinity of the beacon device 1.
  • the detection signal received by the control unit 11 includes a light reception signal output by the light receiving unit 14.
  • the signal transmitted by the beacon device 1 includes an advertisement signal, and the signal transmission interval includes an advertising interval defined by the Bluetooth (registered trademark) standard.
  • the control unit 11 instructs the transmission unit 13 to change the advertising interval that is the transmission interval of the advertising packet.
  • the advertising interval changing process will be described in detail in FIGS. 4 and 5 to be described later.
  • the storage unit 12 is configured by a storage medium such as a ROM (Read Only Memory) and a RAM (Random Access Memory).
  • the storage unit 12 stores various data such as programs, parameters, service information, and the like of the control unit 11 permanently or temporarily.
  • the transmission unit 13 transmits an advertising packet at an advertising interval based on the control of the control unit 11 (see FIG. 5 described later).
  • the light receiving unit 14 is an example of a detection device provided close to the transmission unit 13, and is used as a proximity sensor that detects that the smartphone 2 is close.
  • the light receiving unit 14 receives light incident from the outside of the beacon device 1, the light receiving unit 14 performs photoelectric conversion and outputs a light reception signal having a predetermined voltage to the control unit 11.
  • the control part 11 can judge that the smart phone 2 exists in the vicinity of the beacon apparatus 1, if the light-receiving signal in which the voltage became lower than the predetermined threshold value is input from the light-receiving part 14.
  • the power supply unit 15 supplies power to each unit in the beacon device 1 including the control unit 11. Since the beacon device 1 is small and uses very little power as a whole, for example, a button battery that can be detached from the beacon device 1 is used as the power supply unit 15.
  • the smartphone 2 includes a receiving unit 21, a control unit 22, an operation unit 23, and a display unit 24.
  • the receiving unit 21 receives the advertising packet transmitted from the beacon device 1. Based on the advertising packet received by the receiving unit 21, the control unit 22 performs an operation of establishing a connection with the beacon device 1 that has transmitted the advertising packet. In addition, the control unit 22 performs control to display text, images, and the like on the display unit 24 based on the operation signal input from the operation unit 23 and various information received by the reception unit 21.
  • the operation unit 23 outputs an operation signal to the control unit 22 in accordance with an operation input performed by a screen touch, in addition to buttons and switches (not illustrated) arranged on the housing of the smartphone 2.
  • the display unit 24 displays service information received from the beacon device 1.
  • the operation unit 23 and the display unit 24 are used as a touch panel display in which an operation surface and a display surface are overlapped.
  • FIG. 3 shows how the light receiving unit 14 receives light from the outside.
  • 3A shows an example in which light reaches the light receiving unit 14
  • FIG. 3B shows an example in which light does not reach the light receiving unit 14.
  • a light receiving unit 14 is installed on the upper part of the beacon device 1, and light from the outside reaches the light receiving unit 14.
  • each part of the beacon device 1 excluding the light receiving part 14 is stored inside the housing and is in a state where it cannot be visually recognized from the outside. If there is nothing on the beacon device 1, the light receiving unit 14 photoelectrically converts the received light and outputs a light reception signal having a voltage value corresponding to the amount of received light to the control unit 11. At this time, the beacon device 1 continues to transmit advertising packets at a predetermined transmission interval.
  • the smartphone 2 when the smartphone 2 is held over the beacon device 1, light does not reach the light receiving unit 14 or the amount of received light is greatly reduced. At this time, the voltage value of the received light signal obtained by the photoelectric conversion by the light receiving unit 14 also decreases. As described above, when the voltage value of the light receiving signal output from the light receiving unit 14 becomes lower than a predetermined voltage value, the control unit 11 performs control to shorten the advertising interval. Thereafter, when the smartphone 2 is removed from the top of the beacon device 1, the control unit 11 returns the advertising interval.
  • FIG. 4 is a flowchart showing a detailed operation example of the beacon device 1.
  • the transmission unit 13 transmits an advertising packet at an advertising interval having a predetermined transmission interval as a specified value (S1).
  • the control unit 11 determines whether or not the light receiving unit 14 has detected the smartphone 2 (S2). If the control part 11 judges that the light-receiving part 14 has not detected the smart phone 2, it will continue the judgment process of step S2.
  • control part 11 judges that the light-receiving part 14 detected the smart phone 2, it will perform control which makes an advertising interval shorter than a regulation value with respect to the transmission part 13 (S3). Then, the control unit 11 determines whether or not the light receiving unit 14 continues to detect the smartphone 2 (S4). If the control part 11 judges that the light-receiving part 14 continues detecting the smart phone 2, it will continue the judgment process of step S4.
  • control unit 11 determines that the light receiving unit 14 does not detect the smartphone 2, the control unit 11 returns the advertising interval to the original specified value (S5), and performs the determination process of step S2 again.
  • FIG. 5 is an explanatory diagram showing an example of the advertising interval.
  • FIG. 5A shows a configuration example of an advertising event
  • FIG. 5B shows an advertising interval when the smartphone 2 is not detected
  • FIG. 5C shows an advertising interval when the smartphone 2 is detected.
  • one advertising event ev includes advertising packets p1 to p3 transmitted three times in succession through three channels (37, 38, 39 channels).
  • the advertising packets p1 to p3 are all data having the same contents.
  • an advertising interval t1 is defined in which the time from the end of one advertising event to the start of the next advertising event is defined as a specified value.
  • the advertising interval t1 can take any value in the range of 20 milliseconds to 10.24 seconds, for example.
  • the transmitting unit 13 transmits the advertising event ev at the advertising interval t2 that is shorter than the advertising interval t1. Therefore, the advertising packets p1 to p3 transmitted from the beacon device 1 to the smartphone 2 per unit time are larger than when the beacon device 1 does not detect the smartphone 2. Thereby, the possibility that the smartphone 2 in the vicinity of the beacon device 1 receives the advertising packet can be increased.
  • the smartphone 2 is connected to the beacon device 1 triggered by a decrease in the voltage value of the received light signal caused by the smartphone 2 being held over the light receiving unit 14. Can be determined to be within a predetermined area.
  • the beacon device 1 changes the advertising interval itself based on the light reception signal from the light receiving unit 14. At this time, beacon device 1 makes an advertising interval shorter than a regulation value, and increases the number of times an advertising packet is transmitted per unit time. As a result, the smartphone 2 can reliably receive the advertising packet from the beacon device 1.
  • the beacon device 1 can reliably provide necessary information to the smartphone 2 that has established the connection.
  • the user 8 having the smartphone 2 can obtain useful information just by approaching the beacon device 1, it is not necessary to perform a special operation on the smartphone 2.
  • the beacon device 1 if the beacon device 1 has not detected that the smartphone 2 is within the predetermined area, the beacon device 1 returns the advertising interval to the original specified value. For this reason, the power consumption of the power supply part 15 can be suppressed, and the replacement frequency of the power supply part 15 can also be reduced.
  • beacon device 1 it is not necessary to arrange a real-time clock circuit inside the beacon device 1, and the functions and parts required for the beacon device 1 can be reduced. That is, it can be said that this is advantageous compared to the conventional technique in which the advertising interval is changed according to time by setting a timer using a real-time clock circuit.
  • a timer may be provided in the beacon device 1 to measure the elapsed time from the timing when the voltage change of the received light signal occurs. For example, if a certain time (for example, 10 minutes) has passed with the received light signal being less than a predetermined threshold, the store lighting is turned off, and the possibility that the user 8 is in the store is low.
  • the unit 11 enters a sleep state, and transmission of radio waves from the transmission unit 13 is stopped. Thereafter, when the received light signal becomes equal to or greater than a predetermined threshold, the control unit 11 wakes up and controls the transmission unit 13 to transmit the advertising packet at the advertising interval set to the original specified value. As described above, if the transmission unit 13 stops the transmission of the advertising packet, the power consumption from the power supply unit 15 can be suppressed.
  • FIG. 6 is a top view showing the inside of the restaurant showing the positional relationship between the beacon device and the smartphone.
  • the restaurant 30 has an L-shaped table 31 and a partition 32.
  • the store clerk 5 faces the user 8 with the smartphone 2 across the table 31, and the store clerk 5 is paying for the meal.
  • a register device 3 In the table 31, a register device 3, a beacon device 40, and a reflective sensor 41 are installed.
  • the beacon device 40 is installed near the register device 3.
  • the beacon apparatus 40 is transmitting the advertising packet comprised by the advertisement signal to the circumference
  • the reflective sensor 41 is an example of a detection device, and is installed on the table 31 so as to be located at a position different from the beacon device 40 and facing the partition 32.
  • the reflection type sensor 41 is used as a proximity sensor that detects that the user 8 exists in the vicinity of the reflection type sensor 41.
  • the beacon device 1 performs control to change the advertising interval based on the light reception signal of the reflective sensor 41.
  • the reflective sensor 41 and the beacon device 40 are connected by a wiring (not shown).
  • FIG. 7 is a block diagram illustrating an internal configuration example of the beacon device 40, the reflective sensor 41, and the smartphone 2.
  • the signal transmission system according to this embodiment includes a beacon device 40, a reflective sensor 41, and the smartphone 2.
  • the beacon device 40 includes a control unit 11, a storage unit 12, a transmission unit 13, and a power supply unit 15.
  • the function of each part with which beacon device 40 is provided is the same as that of each part with which beacon device 1 mentioned above is provided.
  • the beacon device 40 does not include the light receiving unit 14 described above, and is different from the beacon device 1 in that it receives a light reception signal (an example of a detection signal) from the reflective sensor 41.
  • the smartphone 2 is the same as that shown in the first embodiment described above.
  • the reflective sensor 41 includes a light emitting unit 42 and a light receiving unit 43.
  • the light emitting unit 42 emits infrared light at regular intervals.
  • the light receiving unit 43 is arranged so as to receive the reflected light reflected by the screen 32 by the infrared light emitted from the light emitting unit 42.
  • the control unit 11 performs control to make the advertising interval shorter than the specified value, and causes the transmission unit 13 to transmit the advertising packet.
  • the reflective sensor 41 is wired to the control unit 11 of the beacon device 40, but may be configured to be wirelessly connected.
  • FIG. 8 is a flowchart showing a detailed operation example of the beacon device 40.
  • the transmission unit 13 transmits an advertising packet at an advertising interval having a predetermined transmission interval as a specified value (S11).
  • the control unit 11 determines whether or not the reflective sensor 41 has detected the user 8 (S12). If the control unit 11 determines that the reflective sensor 41 has not detected the user 8, the control unit 11 continues the determination process in step S12.
  • control unit 11 determines whether or not the reflective sensor 41 continues to detect the user 8 (S14). When the control unit 11 determines that the reflective sensor 41 continues to detect the user 8, the control unit 11 continues the determination process of step S14.
  • control unit 11 determines that the reflective sensor 41 has not detected the user 8
  • the control unit 11 returns the advertising interval to the original specified value (S15), and performs the determination process of step S12 again.
  • the user 8 having the smartphone 2 is triggered by a decrease in the voltage value of the received light signal caused by the user 8 passing in front of the reflective sensor 41. It can be determined that it is within a predetermined area of the beacon device 40. At this time, the beacon device 40 shortens the advertising interval and increases the number of times the advertising packet is transmitted per unit time. As a result, the smartphone 2 can reliably receive the advertising packet from the beacon device 40. Furthermore, after receiving the advertising packet, the beacon device 40 can reliably provide necessary information to the smartphone 2 that has established the connection.
  • the advertising interval may be changed based on measurement results obtained by measuring weight, pressure, body temperature, and the like.
  • a pressure sensor may be provided on the floor surface.
  • a human sensor capable of detecting infrared rays emitted from the user 8. May be used.
  • the presence or absence of the user 8 can also be determined by detecting a change in the room temperature by the temperature sensor.
  • an ultrasonic sensor that transmits ultrasonic waves to the user 8 and receives the reflected waves to detect the presence of the user 8 may be used.
  • the presence or absence of the user 8 may be detected using a camera or a laser.
  • the smartphone 2 is used as an example of the mobile terminal.
  • various devices such as a feature phone, a pager, a portable music player, and a wristwatch can be assumed.
  • a setting position of a beacon apparatus not only on a table but a register apparatus, the ceiling in a store, a floor surface, etc. can be assumed.
  • various application examples can be assumed other than providing service information to the user 8 at the time of store accounting.
  • information on the exhibit in front of the user 8 may be displayed on a smartphone held by the user 8.
  • the detection result may be applied to a crime prevention system that notifies the user 2 of the smartphone 2 by e-mail or the like.
  • the product information displayed in the show window may be provided to the smartphone 2 held by the user 8 passing through the show window.
  • the present invention is not limited to the above-described embodiments, and various other application examples and modifications can be taken without departing from the gist of the present invention described in the claims.
  • the configuration of the apparatus and the system is described in detail and specifically in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one having all the configurations described. Absent. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is also possible to add, delete, and replace other configurations for a part of the configuration of each embodiment. Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2014/082011 2013-12-26 2014-12-03 送信装置、信号送信システム、信号送信間隔変更方法及びプログラム WO2015098448A1 (ja)

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US10342069B2 (en) 2016-12-20 2019-07-02 Qubercomm Technologies, Inc Beacon control system and method

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