JP5982515B1 - Sensor device, management system, and wireless communication method - Google Patents

Sensor device, management system, and wireless communication method Download PDF

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JP5982515B1
JP5982515B1 JP2015037668A JP2015037668A JP5982515B1 JP 5982515 B1 JP5982515 B1 JP 5982515B1 JP 2015037668 A JP2015037668 A JP 2015037668A JP 2015037668 A JP2015037668 A JP 2015037668A JP 5982515 B1 JP5982515 B1 JP 5982515B1
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data
sensor
advertisement packet
information
wireless communication
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JP2016162017A (en
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良介 清船
良介 清船
哲 ▲高▼野
哲 ▲高▼野
亨 寺西
亨 寺西
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日本システムウエア株式会社
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A sensor device, a management system, and a wireless communication method capable of communicating sensor information at as low a cost as possible. Multi-sensor devices 11 to 13 measure data measured by a measuring unit 101 as sensor information at a predetermined data position of an advertising packet used in wireless communication with low power consumption and a measuring unit 101 that measures data. A data processing unit 102 that stores data and a communication unit 103 that transmits an advertisement packet by wireless communication are provided. [Selection] Figure 2

Description

  The present invention relates to a sensor device that measures data and transmits the measured data, a management system that controls a target device using the measured data, and a wireless communication method that performs wireless communication of the measured data.

  2. Description of the Related Art An energy management system (EMS) that manages energy consumption of a device by controlling the device based on data (sensor information) measured by a sensor is known. Some EMS uses a data logger that stores (records) data measured by a sensor. That is, various data such as temperature and humidity measured by the sensor are stored by a data logger, and the stored various data are transmitted to the server on the cloud side by the data logger. In this case, since the data logger is generally expensive, the cost for constructing an EMS having a plurality of data loggers increases.

  On the other hand, it is also conceivable to use a low power consumption wireless technology called BLE (Bluetooth (registered trademark) Low Energy) in EMS. Some BLE devices are inexpensive. By collecting data using such BLE devices, the cost for constructing an EMS can be suppressed. For example, Patent Literature 1 describes a technique for communicating data measured by a sensor included in a BLE device by BLE.

JP, 2014-110635, A

  However, in the current pairing connection between devices by BLE, a one-to-one connection is often performed. That is, in the standard, pairing connection between devices by BLE is one-to-many connection, but many commercially available devices perform one-to-one connection. Therefore, even if the unit price of the sensor device (BLE device having a sensor function) decreases, it is necessary to provide BLE devices (for example, gateways) on the data receiving side as many as the number of sensor devices, resulting in an increase in cost. End up.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a sensor device, a management system, and a wireless communication method capable of communicating sensor information at as low a cost as possible.

  In order to achieve the above object, in the present invention, data measured by the measurement unit is stored as sensor information at a predetermined data position of a measurement unit that measures data and an advertisement packet used in low power consumption wireless communication. There is provided a sensor device including a data processing unit and a communication unit that transmits an advertisement packet by wireless communication.

  Further, the data processing unit may be configured to set sensor information in at least one of major and minor in the advertisement packet. In addition, the data processing unit may be configured to set an application identifier or an installation position identifier in the UUID in the advertisement packet.

The data processing unit may be configured to set the sensor node to the Measured Power in the advertisement packet. Moreover, it is preferable that a measurement part measures at least 1 among temperature, humidity, illumination intensity, an ultraviolet-ray, and a pressure.

  The present invention further includes a plurality of sensor devices that measure data and transmit the data, and a gateway that receives data transmitted from the sensor device and controls the target device using the received data. The plurality of sensor devices include a measurement unit that measures data, a data processing unit that stores data measured by the measurement unit as sensor information at a predetermined data position of an advertisement packet used in low-power-consumption wireless communication, and an advertisement. There is provided a management system having a communication unit that transmits a packet by wireless communication.

  In addition, the gateway may be configured to further include a server that converts the data transmitted from the sensor device after protocol conversion, receives the data transmitted from the gateway, and controls the target device using the received data. Further, the data processing unit may be configured to set sensor information in at least one of major and minor in the advertisement packet. In addition, the data processing unit may be configured to set an application identifier or an installation position identifier in the UUID in the advertisement packet.

The data processing unit may be configured to set the sensor node to the Measured Power in the advertisement packet. Moreover, it is preferable that a measurement part measures at least 1 among temperature, humidity, illumination intensity, an ultraviolet-ray, and a pressure.

  In the present invention, a measurement step for measuring data, a data processing step for storing data measured in the measurement step as sensor information at a predetermined data position of an advertisement packet used in low-power-consumption wireless communication, and advertisement And a communication step of transmitting a packet by wireless communication.

  The data processing step may be configured to set the sensor information in at least one of major and minor in the advertisement packet. Further, the data processing step may be configured to set an application identifier or an installation position identifier in the UUID in the advertisement packet.

The data processing step may be configured to set the sensor node to the Measured Power in the advertisement packet. In the measurement step, it is preferable to measure at least one of temperature, humidity, illuminance, ultraviolet light, and pressure.

  According to the present invention, a measurement unit that measures data, a data processing unit that stores data measured by the measurement unit as sensor information at a predetermined data position of an advertisement packet used in wireless communication with low power consumption, and advertisement A communication unit that transmits the packet by wireless communication. According to such a configuration, the sensor device can store and transmit the sensor information in an advertisement packet for notifying the presence of the sensor device, so that the gateway does not connect to a plurality of multi-sensor devices. Data communication can be performed. Therefore, it is not necessary to install gateways according to the number of multi-sensor devices, and a management system that can collect sensor information at the lowest possible cost can be constructed.

  Further, the data processing unit sets the sensor information to at least one of major and minor in the advertisement packet. According to such a configuration, the sensor information can be placed at an arbitrarily changeable data position in the advertisement packet, and can be changed as appropriate according to the type and number of sensors.

In addition, the data processing unit sets an application identifier or an installation position identifier in the UUID in the advertisement packet. According to such a configuration, it is possible to provide a service for transmitting information useful for the user from the server to the user terminal. The data processing unit sets the sensor node Measured Power in the advertisement packet. According to such a configuration, the server can acquire detailed position information of the multi-sensor device, and can perform more detailed control of the target device. In addition, since the measurement unit measures at least one of temperature, humidity, illuminance, ultraviolet light, and pressure, it can collect sensor information measured by various sensors and realize more appropriate energy management. be able to.

It is a block diagram which shows the structure of the management system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the sensor device shown in FIG. It is a figure which shows the example of data of an advertisement packet. It is a sequence diagram for demonstrating operation | movement of the management system which concerns on embodiment of this invention. It is a figure which shows the kind of sensor device.

  Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to this. In the drawings, in order to describe the embodiment, the scale may be changed as appropriate, for example, by partially enlarging or emphasizing.

  FIG. 1 is a block diagram showing the configuration of the management system SYS according to the embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of the sensor devices 11, 12, and 13 shown in FIG. The management system SYS illustrated in FIG. 1 is a system that controls devices based on data measured by sensors and provides information according to a position to a user terminal (for example, a mobile terminal such as a smartphone). . As illustrated in FIG. 1, the management system SYS includes a plurality of multi-sensor devices (sensor devices) 11 to 13, a gateway 20, and a server 30. In the example shown in FIG. 1, the number of multi-sensor devices is three, but the number of multi-sensor devices is not limited to three, and may be less than three or more than four.

  The multi-sensor devices 11 to 13 are BLE devices having a function of measuring temperature, humidity, illuminance, and the like and a function of performing wireless communication with the gateway 20 using BLE. These multi-sensor devices 11 to 13 are installed at predetermined positions in a store, for example. As illustrated in FIG. 2, the multi-sensor devices 11 to 13 each include a measurement unit 101, a data processing unit 102, a communication unit 103, and a storage unit 104.

  The measurement unit 101 is a processing unit that measures data such as temperature, humidity, and illuminance in real time. Data measured by the measurement unit 101 is referred to as sensor information (sensor data). In the present embodiment, the measurement unit 101 includes at least one of a temperature sensor that measures temperature, a humidity sensor that measures humidity, and an illuminance sensor that measures illuminance. Note that each of the measurement units 101 in the multi-sensor devices 11 to 13 may include one or a plurality of the same sensors. For example, the measurement units 101 of the multi-sensor devices 11 to 13 may each include a temperature sensor, a humidity sensor, and an illuminance sensor. In addition, the measurement units 101 of the multi-sensor devices 11 to 13 may have different sensors. For example, the measurement unit 101 of the multi-sensor device 11 may be a temperature sensor, the measurement unit 101 of the multi-sensor device 12 may be a humidity sensor, and the measurement unit 101 of the multi-sensor device 13 may be an illuminance sensor.

  The data processing unit 102 is a processing unit that performs processing for storing the data measured by the measurement unit 101 as sensor information in a predetermined data position of a beacon packet. The beacon packet is used to inform the receiving device (gateway 20) of its own function and presence before pairing connection between devices called advertisement packets (or advertisement packets) in the BLE standard. Broadcast packet. Thus, the beacon packet is a packet unrelated to the connection, and the receiving device can detect the information (ID information) before the pairing connection. Therefore, it is possible to collect a plurality of pieces of sensor information with one BLE device (gateway 20) as long as the beacon packet can be reached without connecting.

  Details of the advertisement packet and data conversion by the data processing unit 102 will be described. FIG. 3 is a diagram illustrating an example of data of an advertisement packet. In FIG. 3, "D6 BE 89 8E 40 24 05 A2 17 6E 3D 71 02 01 1A 1A FF 4C 00 02 15 E2 C5 6D B5 DF FB 48 D2 B0 60 D0 F5 A7 10 96 E00 A00 38 A5 "is an example of data of the advertisement packet. FIG. 3 shows an example of advertisement packet data in iBeacon (registered trademark) using BLE technology provided by Apple (registered trademark). iBeacon is a function / service in which specific data (specific part) in an advertisement packet is standardized by Apple.

Of the iBeacon advertisement packet data, the iBeacon-specific part is as follows.
4C 00: Apple, Inc
02: iBeacon
15: Data length (21 bytes)
XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX : Proximity UUID (16 bytes)
XX XX: major (2 bytes)
XX XX: minor (2 bytes)
XX: Measured Power

  Byte values other than “XX” are fixed values in iBeacon. An arbitrary byte value (parameter) within a predetermined range can be set in the “XX” portion. “4C 00” is a part for setting a company identifier code. 004C indicates Apple. “02” is a part for setting a data type. 02 indicates iBeacon. “15” is a portion for setting the data length. “Proximity UUID” is a part for setting an identifier of a company or organization. In the example illustrated in FIG. 3, “E2 C5 6D B5 DF FB 48 D2 B0 60 D0 F5 A7 10 96 E0” is set. “Major” is a part for setting an identifier for each installation area. In the example shown in FIG. 3, “00” is set. “Minor” is a part for setting an identifier for each store. In the example shown in FIG. 3, “00” is set. “Measured Power” is a part for setting the signal strength (RSSI) of the received radio wave when the distance from the iBeacon is 1 meter. In the example shown in FIG. 3, “C5” is set.

  In the present embodiment, as shown in FIG. 3, the data processing unit 102 has a predetermined data position (“company identifier”, “Proximity UUID”, “major”, “minor”, “Measured Power” in the advertisement packet data of the iBeacon. ”), Predetermined data is stored to generate an advertisement packet (portion indicated as“ multi-sensor beacon ”in FIG. 3) for transmitting sensor information.

  Specifically, the data processing unit 102 stores sensor information in the “major” and “minor” portions. In the example shown in FIG. 3, in the “major” portion, the temperature measured by the temperature sensor (−20 to +85 [° C.]) and the humidity sensor are used instead of the identifier data of the installation area unit. Humidity (0 to 100 [% Rh]) is stored. In addition, in the “minor” portion, the illuminance (0 to 81900 [Lx]) measured by the illuminance sensor is stored instead of the store unit identifier data.

  Further, the data processing unit 102 replaces “company identifier (004C) indicating Apple” in the iBeacon advertisement packet data with the identifier of the company using the management system SYS (for example, the company acquired by the applicant). Identifier). The company identifier (004C) indicating Apple may be used instead of the company identifier using the management system SYS. In particular, when data communication is performed with an Apple product (iOS terminal), the company identifier needs to be 004C. For this reason, when it is assumed that data communication is performed with an Apple product (iOS terminal), the company identifier remains 004C. In the Android terminal, the company identifier can be arbitrarily set.

  In addition, the data processing unit 102 may replace the setting of the company / organization identifier in the “Proximity UUID” portion with an application identifier for identifying an application installed in the user terminal 50 or a multi-sensor device. An installation position identifier for identifying the position (location) where 11 to 13 are installed is set. Further, the data processing unit 102 sets the sensor nodes (0 to 255) of the multi-sensor devices 11 to 13 instead of setting “Measured Power”. The sensor node is information corresponding to a detailed position of each multi-sensor device at a position where the multi-sensor devices 11 to 13 are installed (for example, a place / range such as a store).

  As described above, in this embodiment, the data of the iBeacon advertisement packet is changed and used, and therefore, the same format packet as the iBeacon advertisement packet can be used in terminals other than the Apple terminal. .

  Returning to the description of FIG. 1 and FIG. 2, the communication unit 103 is a processing unit that transmits a packet subjected to data conversion processing by the data processing unit 102 using BLE, which is a low power consumption wireless technology. As a range where the packet reaches, for example, about 30 m is assumed. The storage unit 104 stores data (sensor information) measured by the measurement unit 101. The storage unit 104 also stores a program for executing control of the measurement unit 101, the data processing unit 102, and the communication unit 103.

  The gateway 20 is a device that connects networks of different protocols by performing protocol conversion of data. The gateway 20 receives advertisement packets transmitted from the plurality of multi-sensor devices 11-13. Thereby, the gateway 20 can collect the sensor information measured by the multi-sensor devices 11 to 13 without performing BLE pairing connection. The gateway 20 converts the protocol of the received packet into data of the protocol of the network 40 such as the Internet. Then, the gateway 20 transmits data generated by protocol conversion to the server 30 via the network 40.

  The server 30 receives the data transmitted from the gateway 20, and manages the energy consumption of the device by controlling the device based on the sensor information included in the received data. For example, the server 30 controls the air conditioner such as an air conditioner based on the indoor temperature information measured by the temperature sensor and the indoor humidity information measured by the humidity sensor, so that the room has the optimum temperature and humidity. adjust. Further, the server 30 controls the lighting device based on the illuminance information in the room measured by the illuminance sensor, and adjusts the room to an appropriate brightness.

  As illustrated in FIG. 1, the server 30 includes a communication unit 31, a management unit 32, and a storage unit 33. The communication unit 31 is a processing unit that is connected to the network 40 and performs data communication with an external device (such as the gateway 20 or a device to be controlled). Specifically, data transmitted from the gateway 20 is received via the network 40. In addition, the communication unit 31 performs a process of transmitting a control signal to a control target device via the network 40.

  The management unit 32 is a processing unit that performs processing for managing a device to be controlled. Specifically, the management unit 32 analyzes sensor information included in the data transmitted from the gateway 20. Then, the management unit 32 controls the device to be controlled by transmitting a control signal to the device to be controlled based on the analysis result. The storage unit 33 stores programs (applications) and parameters necessary for various controls or processes in the server 30.

  The user terminal 50 is a portable terminal such as a smartphone provided by the user. The user terminal 50 is equipped with an application that acquires information from the server 30 based on reception of beacon packets transmitted from the multi-sensor devices 11 to 13. When receiving the beacon packet (advertisement packet) transmitted from the multi-sensor devices 11 to 13, the user terminal 50 extracts and extracts ID information such as “Proximity UUID” and “sensor node” included in the beacon packet. The ID information is transmitted to the server 30 via the network 40. In the server 30, when the communication unit 31 receives the ID information transmitted from the user terminal 50, the management unit 32 recognizes the position of the user (the position of the user terminal 50) based on the ID information and associates it with the ID information in advance. Read information (for example, coupon information of a store) is read from the storage unit 33. Then, the management unit 32 transmits information associated with the ID information to the user terminal 50 via the network 40. Such a technology for linking online and offline purchasing activities is called O2O (Online to Offline).

  Next, the operation of the management system SYS will be described. FIG. 4 is a sequence diagram for explaining the operation of the management system SYS according to the embodiment of the present invention. In the process shown in FIG. 4, the measurement unit 101 of each multi-sensor device 11-13 measures temperature, humidity, and the like (step S1). At this time, the measurement unit 101 stores the measured sensor information in the storage unit 104. The data processing unit 102 stores sensor information, which is data measured by the measurement unit 101, at a predetermined data position (“major” “minor”) in the advertisement packet (step S2). Further, the data processing unit 102 sets “company identifier”, “application identifier, installation location identifier”, and “sensor node” in the advertisement packet (step S3). The communication unit 103 periodically transmits advertised packets generated by the data conversion processing in the data processing unit 102 by BLE (step S4).

  The gateway 20 receives the advertisement packet transmitted from the multi-sensor devices 11 to 13 (Step S5). Then, the gateway 20 performs protocol conversion on the received packet (step S6), and transmits the data after the protocol conversion to the server 30 through the network 40 (step S7).

  The communication unit 31 of the server 30 receives the data transmitted from the gateway 20 (step S8). Data received by the communication unit 31 is stored in the storage unit 33. The management unit 32 analyzes the sensor information included in the received data and determines how to control the device to be controlled (step S9). Then, the management unit 32 controls the control target device by outputting a control signal to the control target device based on the analysis result (step S10).

  As described above, in the present embodiment, the data measured by the measurement unit 101 is used as sensor information at a predetermined data position of the measurement packet 101 that measures data and the advertisement packet used in low power consumption wireless communication. A data processing unit 102 that stores data and a communication unit 103 that transmits an advertisement packet by wireless communication are provided. According to such a configuration, since the multi-sensor devices 11 to 13 can store and transmit sensor information in an advertisement packet for notifying the existence of the multi-sensor devices 11 to 13, the gateway 20 includes a plurality of multi-sensor devices 11 to 13 and Data communication can be performed without connecting between the two. Therefore, it is not necessary to install gateways 20 corresponding to the number of multi-sensor devices 11 to 13, and a management system SYS that can collect sensor information at as low a cost as possible can be constructed.

  In the present embodiment, the data processing unit 102 sets sensor information in at least one of major and minor in the advertisement packet. According to such a configuration, the sensor information can be placed at an arbitrarily changeable data position in the advertisement packet, and can be changed as appropriate according to the type and number of sensors.

In the present embodiment, the data processing unit 102 sets an application identifier or an installation position identifier in the UUID in the advertisement packet. According to such a configuration, it is possible to provide a service for transmitting information useful for the user from the server 30 to the user terminal 50. The data processing unit 102 sets the sensor node to the Measured Power in the advertisement packet. According to such a configuration, the server 30 can acquire detailed position information of the multi-sensor devices 11 to 13, and can perform more detailed control of the target device.

  In the above-described embodiment, the measurement unit 101 of the multi-sensor devices 11 to 13 measures (measures) temperature, humidity, and illuminance using a temperature sensor, a humidity sensor, and an illuminance sensor, but is not limited to these sensors. . FIG. 5 is a diagram illustrating types of sensor devices. As shown in FIG. 5, the measurement unit 101 includes different types of sensors such as a UV-A (ultraviolet sensor), a pressure sensor, and a six-axis sensor (geomagnetic sensor, acceleration sensor) in addition to a temperature sensor, a humidity sensor, and an illuminance sensor. A sensor may be provided.

  A UV-A sensor measures an ultraviolet-ray (UV-A) in the range of 0-20.48 [mW / cm2], for example. For example, by installing a UV-A sensor in a store, the server 30 can grasp the ultraviolet state of the store. Thereby, the server 30 can perform control such as opening and closing of the shutter, for example. Moreover, a pressure sensor measures a pressure in the range of 300-1100 [hPa], for example. For example, by installing the pressure sensor in the seat, the server 30 can recognize the vacant seat situation based on the sensor information (pressure information) of the pressure sensor.

  The 6-axis sensor is composed of a geomagnetic sensor and an acceleration sensor. For example, by installing an acceleration sensor on a door of a house, a window, a car door, or the like, the server 30 can recognize opening / closing of the door or window based on sensor information (acceleration information) of the acceleration sensor. When the server 30 confirms opening / closing of a door or the like at a suspicious time or an unexpected time, the server 30 can notify the user's terminal (computer, portable terminal, etc.) to that effect. Thus, sensor information can be utilized for crime prevention.

  Although the embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above embodiments. Various modifications or improvements can be added to the above-described embodiment without departing from the spirit of the present invention. In addition, one or more of the requirements described in the above embodiments may be omitted. Such modifications, improvements, and omitted forms are also included in the technical scope of the present invention. In addition, the configurations of the above-described embodiments and modifications can be applied in appropriate combinations.

  For example, as shown in FIG. 3, temperature information and humidity information are stored in the “major” of the advertisement packet, and illuminance information is stored in “minor”. However, these are only examples. Whether to store in minor is arbitrary.

  When the gateway 20 directly controls the target device, the server 30 is omitted from the configuration, and the gateway 20 serves as the server 30. Specifically, the gateway 20 has the same configuration (or configuration having similar functions) as the communication unit 31, the management unit 32, and the storage unit 33 in the server 30.

SYS management system 11, 12, 13 Multi-sensor device (sensor device)
20 gateway 30 server 50 user terminal 101 measuring unit 102 data processing unit 103 communication unit

Claims (9)

  1. A measurement unit for measuring data;
    A data processing unit that stores the data measured by the measurement unit as sensor information in at least one of major and minor in an advertisement packet used in BLE , and sets an application identifier or an installation position identifier in a UUID in the advertisement packet; ,
    The advertisement packet is sent to the gateway and the user terminal that communicate with the server that provides information to the user terminal based on the application identifier or the installation position identifier together with the control of the target device based on the sensor information. A communication device that transmits by wireless communication.
  2. Wherein the data processing unit, according to claim 1 Symbol placement of the sensor device to set the sensor node to the Measured Power in the advertisement packet.
  3. The measurement unit sensor device according to claim 1 or claim 2 for measuring temperature, humidity, illuminance, UV, at least one of the pressure.
  4. A plurality of sensor devices that measure data and transmit the data;
    A gateway that receives the data transmitted from the sensor device, converts the received data into a protocol, and transmits the data ;
    A server that receives the data transmitted from the gateway and the data transmitted from the user terminal, and provides a service using the received data ;
    The plurality of sensor devices are:
    A measurement unit for measuring the data;
    A data processing unit that stores the data measured by the measurement unit as sensor information in at least one of major and minor in an advertisement packet used in BLE , and sets an application identifier or an installation position identifier in a UUID in the advertisement packet; ,
    A communication unit that transmits the advertisement packet to the user terminal through the wireless communication with the gateway that performs communication with the server ;
    The server is a management system that controls a target device based on the sensor information and provides information to the user terminal based on the application identifier or the installation position identifier .
  5. Wherein the data processing unit, the management system of claim 4, wherein setting the sensor node to the Measured Power in the advertisement packet.
  6. The management system according to claim 4 or 5 , wherein the measurement unit measures at least one of temperature, humidity, illuminance, ultraviolet light, and pressure.
  7. A measurement step for measuring data;
    A data processing step of storing the data measured in the measurement step as sensor information in at least one of major and minor in an advertisement packet used in BLE , and setting an application identifier or an installation location identifier in a UUID in the advertisement packet; ,
    The advertisement packet is sent to the gateway and the user terminal that communicate with the server that provides information to the user terminal based on the application identifier or the installation position identifier together with the control of the target device based on the sensor information. And a communication step of transmitting by wireless communication.
  8. Wherein the data processing step, the radio communication method according to claim 7, wherein setting the sensor node to the Measured Power in the advertisement packet.
  9. The wireless communication method according to claim 7 or 8 , wherein the measuring step measures at least one of temperature, humidity, illuminance, ultraviolet light, and pressure.
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