WO2019031340A1 - データ送信装置およびデータ受信装置 - Google Patents

データ送信装置およびデータ受信装置 Download PDF

Info

Publication number
WO2019031340A1
WO2019031340A1 PCT/JP2018/028823 JP2018028823W WO2019031340A1 WO 2019031340 A1 WO2019031340 A1 WO 2019031340A1 JP 2018028823 W JP2018028823 W JP 2018028823W WO 2019031340 A1 WO2019031340 A1 WO 2019031340A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
sensor data
reference value
packet
difference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/028823
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
久保　誠雄
出野　徹
秀規 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Omron Healthcare Co Ltd
Original Assignee
Omron Corp
Omron Healthcare Co Ltd
Omron Tateisi Electronics Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omron Corp, Omron Healthcare Co Ltd, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to CN201880048931.5A priority Critical patent/CN110945964A/zh
Priority to DE112018004061.5T priority patent/DE112018004061T5/de
Publication of WO2019031340A1 publication Critical patent/WO2019031340A1/ja
Priority to US16/733,264 priority patent/US11223974B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
    • A61B5/02125—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave propagation time
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the oscillometric method
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • 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
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0006—ECG or EEG signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0008—Temperature signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/024—Measuring pulse rate or heart rate
    • A61B5/02438—Measuring pulse rate or heart rate with portable devices, e.g. worn by the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/024—Measuring pulse rate or heart rate
    • A61B5/0245—Measuring pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
    • H04Q2209/82—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to transmission and reception of data by one-way communication.
  • a blood pressure monitor having a function of transmitting blood pressure data to a user's smartphone has been put on the market. Using this function, the user can list the measurement results of his or her blood pressure under various conditions with a smartphone.
  • near-field wireless communication technology in particular Bluetooth (registered trademark) technology is typically used for transmission of blood pressure data.
  • Bluetooth communication connection
  • WLAN wireless local area network
  • the BLE connection is complicated by the operations imposed on the user for pairing, the communication procedure after pairing is complicated, the smartphone needs to support BLE, and the sphygmomanometer (and smartphone)
  • problems such as requiring high-performance hardware (processor, memory), high development / evaluation cost, large amount of communication overhead, and not suitable for small-capacity data transmission.
  • BLE can also perform one-way communication called advertising.
  • Japanese Patent No. 5852620 discloses a technique for transmitting data including arbitrary data in the margin of the data field of an advertisement packet. If blood pressure data is transmitted using advertising, pairing and subsequent complicated communication procedures become unnecessary, so the above problems are almost eliminated.
  • the data transmission apparatus can not confirm whether the transmitted data has been successfully received by the data reception apparatus. Therefore, practically, the data transmitting apparatus is required to retransmit data on the assumption that the data receiving apparatus lacks data. In order to compensate for the decrease in transmission efficiency associated with data retransmission, it is desirable to reduce the transmission data capacity.
  • An object of the present invention is to reduce the volume of packets transmitted by one-way communication.
  • a data transmission apparatus transmits a transmission control unit that generates a first packet for one-way communication including first difference sensor data, and transmits the generated first packet.
  • a transmitting unit, and the first difference sensor data is a difference between the first sensor data measured by the sensor and a reference value associated with the first sensor data.
  • biological information such as blood pressure of the same person rarely fluctuates in a short time, so the number of bits allocated for transmission of difference sensor data is the number of bits allocated for transmission of raw sensor data It can be suppressed compared to Therefore, according to the data transmitting apparatus of this aspect, it is possible to reduce the capacity of packets transmitted by one-way communication.
  • the transmission control unit does not store the reference value in the first packet. Therefore, sensor data can be substantially encrypted and transmitted securely.
  • the transmission control unit generates the first packet so as to further include an identifier indicating which one of a plurality of preset reference values is the reference value.
  • the data receiving apparatus can identify the preset reference value represented by the identifier stored in the packet using the correspondence relationship between the identifier and the preset reference value, and reliably restore the sensor data.
  • the original sensor data can not be restored unless the third party knows the correspondence between the identifier and the preset reference value. That is, sensor data can be substantially encrypted and transmitted securely.
  • the transmission control unit generates the first packet further including the reference value and second difference sensor data, and the second difference sensor data is generated by the sensor.
  • the reference value itself is stored in the same packet as the first difference sensor data and the second difference sensor data generated using the reference value. Therefore, the data receiving apparatus can reliably restore sensor data.
  • the transmission control unit generates the first packet further including the reference value, and the reference value is a second sensor data different from the first sensor data. is there.
  • the reference value itself is stored in the same packet as the first difference sensor data generated using the reference value. Therefore, the data receiving apparatus can reliably restore sensor data. Further, according to this aspect, since the second sensor data is used as a reference value as it is, it is possible to reduce the capacity corresponding to the second difference sensor data as compared with the fourth aspect.
  • the transmission control unit when the data size of the first difference sensor data is larger than that of the first sensor data, the transmission control unit includes a piece including the first sensor data. A second packet for direction communication is generated instead of the first packet, and the transmitting unit transmits the generated second packet. Therefore, according to this aspect, it is possible to reliably obtain the effect of reducing the capacity by transmitting the first packet.
  • the first sensor data is biometric data. Therefore, biological data such as blood pressure data can be transmitted with high efficiency.
  • a data receiving apparatus includes: a receiving unit that receives a first packet for one-way communication including first difference sensor data; and a receiving unit that receives the first packet.
  • the first difference sensor data to be added to a reference value associated with the first difference sensor data to restore the first sensor data that is the source of the first difference sensor data;
  • the first difference sensor data is a difference between the first sensor data and the reference value.
  • biological information such as blood pressure of the same person rarely fluctuates in a short time, so the number of bits allocated for transmission of difference sensor data is the number of bits allocated for transmission of raw sensor data It can be suppressed compared to Therefore, according to this data receiving apparatus, it is possible to reduce the capacity of packets transmitted by one-way communication.
  • the first packet does not include the reference value
  • the restoration unit is based on received data or user input other than the first packet.
  • the reference value is determined. Therefore, sensor data can be substantially encrypted and transmitted securely.
  • a storage unit storing a plurality of preset reference values, wherein the first packet is any one of the plurality of preset reference values in which the reference value is stored.
  • the restoration unit selects a preset reference value represented by the identifier included in the received first packet among the plurality of stored preset reference values, and The first difference sensor data included in the received first packet is added to the selected preset reference value to recover the first sensor data. Therefore, the data receiving apparatus can identify the preset reference value represented by the identifier stored in the packet using the correspondence relationship between the identifier and the preset reference value, and reliably restore the sensor data.
  • the original sensor data can not be restored unless the third party knows the correspondence between the identifier and the preset reference value. That is, sensor data can be substantially encrypted and transmitted securely.
  • the first packet further includes the reference value and second difference sensor data
  • the recovery unit is included in the received first packet.
  • the second difference sensor data included in the received first packet is added to a reference value to restore second sensor data that is the source of the second difference sensor data, and the second difference is calculated.
  • Sensor data is a difference between the second sensor data and the reference value.
  • the reference value itself is stored in the same packet as the first difference sensor data and the second difference sensor data generated using the reference value. Therefore, this data receiving apparatus can reliably restore sensor data.
  • the first packet further includes the reference value, and the reference value is second sensor data different from the first sensor data, and the restoration unit And adding the first difference sensor data to the second sensor data to restore the first sensor data.
  • the reference value itself is stored in the same packet as the first difference sensor data generated using the reference value. Therefore, this data receiving apparatus can reliably restore sensor data.
  • the second sensor data is used as a reference value as it is, it is possible to reduce the capacity corresponding to the second difference sensor data as compared with the tenth aspect.
  • the first sensor data is biometric data. Therefore, biological data such as blood pressure data can be transmitted with high efficiency.
  • the present invention can reduce the capacity of packets transmitted by one-way communication.
  • FIG. 1 is a block diagram showing an application example of the data transmission apparatus according to the embodiment.
  • FIG. 2 is a block diagram illustrating the hardware configuration of the data transmission apparatus according to the embodiment.
  • FIG. 3 is a block diagram illustrating the hardware configuration of the data receiving apparatus according to the embodiment.
  • FIG. 4 is a block diagram illustrating the functional configuration of the data transmission apparatus according to the embodiment.
  • FIG. 5 is an explanatory diagram of advertising performed in BLE.
  • FIG. 6 is a diagram illustrating the data structure of packets transmitted and received in BLE.
  • FIG. 7 is a diagram illustrating the data structure of the PDU field of the advertisement packet.
  • FIG. 1 is a block diagram showing an application example of the data transmission apparatus according to the embodiment.
  • FIG. 2 is a block diagram illustrating the hardware configuration of the data transmission apparatus according to the embodiment.
  • FIG. 3 is a block diagram illustrating the hardware configuration of the data receiving apparatus according to the embodiment.
  • FIG. 4 is a block diagram illustrating the functional configuration of the
  • FIG. 8 is a diagram illustrating a first example of the data structure stored in the payload of the PDU field of the packet transmitted by the data transmitting apparatus according to the embodiment.
  • FIG. 9 is a diagram illustrating a second example of the data structure stored in the payload of the PDU field of the packet transmitted by the data transmitting apparatus according to the embodiment.
  • FIG. 10 is a diagram illustrating a third example of the data structure stored in the payload of the PDU field of the packet transmitted by the data transmitting apparatus according to the embodiment.
  • FIG. 11 is a diagram illustrating five sets of sensor data.
  • FIG. 12 is a diagram illustrating difference sensor data corresponding to the sensor data of FIG.
  • FIG. 13 is an explanatory diagram of the capacity reduction effect when the difference sensor data of FIG. 12 is transmitted using the data structure of FIG.
  • FIG. 14 is a diagram illustrating a fourth example of the data structure stored in the payload of the PDU field of the packet transmitted by the data transmitting apparatus according to the embodiment.
  • FIG. 15 is a block diagram illustrating the functional configuration of the data receiving apparatus according to the embodiment.
  • FIG. 16 is a diagram illustrating a data transmission system including the data transmission device and the data reception device according to the embodiment.
  • FIG. 17 is a flowchart illustrating the operation of the data transmission apparatus according to the embodiment.
  • FIG. 18 is a flowchart illustrating the operation of the data receiving apparatus according to the embodiment.
  • FIG. 1 schematically shows an application example of the data transmission apparatus 100 according to the present embodiment.
  • Data transmission apparatus 100 includes at least biometric sensor 101, data management unit 102, data storage unit 103, transmission control unit 104, reference value storage unit 105, and transmission unit 106.
  • the biometric sensor 101 obtains biometric data by measuring the amount of biometric information of the user.
  • the biometric sensor 101 sends biometric data to the data management unit 102.
  • the data management unit 102 receives biometric data from the biometric sensor 101 and writes these in the data storage unit 103.
  • the data storage unit 103 has sensor data read and written by the data management unit 102.
  • the transmission control unit 104 receives a set of date and time data and sensor data from the data management unit 102, and determines a reference value used to reduce the capacity of the sensor data. Specifically, the transmission control unit 104 may read the reference value from the reference value storage unit 105 when reusing the reference value used in the past. On the other hand, when updating the reference value, the transmission control unit 104 determines a new reference value as described later, and stores the determined reference value in the reference value storage unit 105.
  • the reference value storage unit 105 has the transmission control unit 104 read and write the reference value.
  • the transmission control unit 104 calculates a difference between the determined reference value and the biological data (hereinafter also referred to as difference sensor data), and generates a packet for one-way communication in which the difference sensor data is stored.
  • the transmission control unit 104 sends this packet to the transmission unit 106.
  • the transmission unit 106 receives a packet from the transmission control unit 104, and transmits (advertises) this packet.
  • the biological data includes the values of systolic blood pressure and diastolic blood pressure
  • the measurement range of the blood pressure sensor as the biological sensor 101 is 0 mmHg to 299 mmHg
  • each value is expressed by at most 9 bits.
  • this blood pressure fluctuation falls within a fairly small range as compared to the whole range of systolic blood pressure and diastolic blood pressure.
  • the values of systolic and diastolic blood pressure are represented by 5 bits each and 6 bits even if assuming about ⁇ 31 mmHg from the center It becomes possible. Therefore, by transmitting not the blood pressure value itself but the difference between the reference value and the blood pressure value, it is possible to reduce the volume of transmission data.
  • the reference value is preferably, for example, a short-term statistical index of the user's blood pressure value (average value, minimum value, maximum value, median value, mode, or average of minimum value and maximum value, etc.)
  • Statistical processing can be omitted by selecting from a plurality of preset reference values.
  • FIG. 2 schematically shows an example of the hardware configuration of the data transmission apparatus 100. As shown in FIG.
  • the control unit 111, the storage unit 112, the communication interface 113, the input device 114, the output device 115, the external interface 116, and the battery 117 are electrically connected. It is a connected computer, typically a sensor device that routinely measures the amount of biological information or activity information of the user, such as a sphygmomanometer, thermometer, activity meter, pedometer, body composition meter, weight scale and the like.
  • the communication interface and the external interface are described as “communication I / F” and “external I / F”, respectively.
  • the control unit 111 includes a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), and the like.
  • the CPU develops the program stored in the storage unit 112 in the RAM. Then, the CPU interprets and executes this program, whereby the control unit 111 can execute various information processing (processing of the functional block described in the item of the functional configuration).
  • the storage unit 112 is a so-called auxiliary storage device, and may be, for example, a semiconductor memory such as a built-in or external flash memory, a hard disk drive (HDD: Hard Disk Drive), a solid state drive (SSD: Solid State Drive), etc. .
  • the storage unit 112 stores a program executed by the control unit 111, data used by the control unit 111 (for example, reference value, date and time data, sensor data) and the like.
  • the communication interface 113 includes at least a wireless module capable of one-way communication such as BLE.
  • the input device 114 includes, for example, a device for receiving user input such as a touch screen, a button, a switch, and a sensor for detecting an amount related to biological information or activity information of the user.
  • the output device 115 is, for example, a device for performing output such as a display and a speaker.
  • the external interface 116 is a universal serial bus (USB) port, a memory card slot, or the like, and is an interface for connecting to an external device.
  • USB universal serial bus
  • the battery 117 supplies the power supply voltage of the data transmission apparatus 100.
  • the battery 117 may be replaceable. It is not essential that the data transmission apparatus 100 is battery-powered, and may be connectable to a commercial power supply via an AC (Alternating Current) adapter. In this case, the battery 117 can be omitted.
  • AC Alternating Current
  • control unit 111 may include a plurality of processors.
  • the data transmission device 100 may be configured by a plurality of sensor devices.
  • FIG. 3 schematically illustrates an example of the hardware configuration of the data receiving apparatus 200.
  • the data receiving apparatus 200 is a computer in which a control unit 211, a storage unit 212, a communication interface 213, an input device 214, an output device 215, and an external interface 216 are electrically connected.
  • a control unit 211 Typically a smartphone.
  • the communication interface and the external interface are described as “communication I / F” and “external I / F”, respectively.
  • the control unit 211 includes a CPU, a RAM, a ROM, and the like.
  • the CPU develops the program stored in the storage unit 212 in the RAM. Then, the CPU interprets and executes this program, whereby the control unit 211 can execute various information processing (processing of the functional block described in the item of the functional configuration).
  • the storage unit 212 is a so-called auxiliary storage device, and may be, for example, a semiconductor memory such as a built-in or external flash memory.
  • the storage unit 212 stores a program executed by the control unit 211, data used by the control unit 211 (for example, an identifier, a reference value, date and time data, sensor data), and the like.
  • data used by the control unit 211 for example, an identifier, a reference value, date and time data, sensor data
  • the storage unit 212 may be an HDD, an SSD, or the like.
  • the communication interface 213 is mainly various wireless communication modules for BLE, mobile communication (3G, 4G, etc.), WLAN (Wireless Local Area Network), etc., and is an interface for performing wireless communication via a network. is there.
  • the communication interface 213 may further include a wired communication module such as a wired LAN module.
  • the input device 214 is a device for receiving user input, such as a touch screen, a keyboard, or a mouse.
  • the output device 215 is, for example, a device for performing an output such as a display or a speaker.
  • the external interface 216 is a USB port, a memory card slot, or the like, and is an interface for connecting to an external device.
  • the control unit 211 may include a plurality of processors.
  • the data reception device 200 may be configured by a plurality of information processing devices.
  • a general-purpose desktop PC Personal Computer
  • a tablet PC or the like may be used in addition to the information processing apparatus designed specifically for the service to be provided.
  • FIG. 4 schematically illustrates an example of a functional configuration of the data transmission apparatus 100.
  • the control unit 111 loads the program stored in the storage unit 112 in the RAM. Then, the control unit 111 interprets and executes this program by the CPU to control various hardware elements shown in FIG.
  • the data transmitting apparatus 100 includes the biometric sensor 101, the data managing unit 102, the data storage unit 103, the transmission control unit 104, the reference value storage unit 105, and the transmitting unit 106. Functions as a computer including the motion sensor 107, the clock unit 108, the input unit 109, the display control unit 110, and the display unit 120.
  • the biometric sensor 101 obtains biometric data by measuring the amount of biometric information of the user.
  • the operation of the biological sensor 101 is controlled by, for example, a sensor control unit (not shown).
  • the biometric sensor 101 associates the biometric data with date and time data received from the clock unit 108 and sends the data to the data management unit 102.
  • the biometric sensor 101 typically includes a blood pressure sensor that obtains blood pressure data by measuring the user's blood pressure.
  • the biological data includes blood pressure data.
  • Blood pressure data may include, but is not limited to, for example, systolic and diastolic blood pressure values and pulse rate.
  • biological data can include electrocardiogram data, pulse wave data, body temperature data, and the like.
  • the blood pressure sensor can include a blood pressure sensor (hereinafter, referred to as a continuous blood pressure sensor) capable of continuously measuring the blood pressure of the user for each beat.
  • the continuous blood pressure sensor may continuously measure the blood pressure of the user from pulse wave transit time (PTT), or may realize continuous measurement by tonometry or other techniques.
  • PTT pulse wave transit time
  • the blood pressure sensor may include a non-continuously measurable blood pressure sensor (hereinafter referred to as a non-continuous blood pressure sensor) in place of or in addition to the continuous blood pressure sensor.
  • a non-continuous blood pressure sensor measures the user's blood pressure using, for example, a cuff as a pressure sensor (oscillometric method).
  • Non-continuous blood pressure sensors tend to have higher measurement accuracy than continuous blood pressure sensors. Therefore, the blood pressure sensor is replaced with the continuous blood pressure sensor, for example, triggered by that some condition is satisfied (for example, the user's blood pressure data measured by the continuous blood pressure sensor suggested a predetermined state) By operating the non-continuous blood pressure sensor, blood pressure data may be measured with higher accuracy.
  • the data management unit 102 receives sensor data (biological data or acceleration / angular velocity data) associated with date and time data from the biometric sensor 101 or the motion sensor 107, and writes these in the data storage unit 103.
  • sensor data biological data or acceleration / angular velocity data
  • the data management unit 102 may automatically send them to the transmission control unit 104 or the display control unit 110.
  • the data management unit 102 reads a set of date and time data and sensor data stored in the data storage unit 103 triggered by an instruction from the transmission control unit 104 or the display control unit 110, and the transmission control unit 104 or the display control It may be sent to unit 110.
  • the data storage unit 103 has the data management unit 102 read and write sets of date and time data and sensor data.
  • the transmission control unit 104 receives a set of date and time data and sensor data from the data management unit 102, and determines a reference value used to reduce the capacity of the sensor data. Specifically, the transmission control unit 104 may read the reference value from the reference value storage unit 105 when reusing the reference value used in the past. On the other hand, when updating the reference value, the transmission control unit 104 determines a new reference value as described later, and stores the determined reference value in the reference value storage unit 105.
  • transmission control section 104 may update the reference value at a predetermined cycle, such as every week, every month, every year, etc., or trigger a specific user input given to input section 109.
  • the reference value may be updated to
  • the transmission control unit 104 updates the reference value based on the statistical index of the absolute value of the difference (such as the average value, the minimum value, the maximum value, the median value, the mode value, or the average of the minimum value and the maximum value). It may be determined whether to do so. For example, when the user's blood pressure tends to be higher or lower than in the past, the reference value is updated according to the current tendency of the user, and the range that can be represented by the number of allocated bits Can prevent situations beyond
  • the transmission control unit 104 calculates a difference between the determined reference value and the sensor data, and generates a packet for one-way communication in which the difference sensor data is stored.
  • the transmission control unit 104 sends the generated packet to the transmission unit 106.
  • This packet is, for example, an advertisement packet in BLE.
  • BLE may be replaced with other low power consumption / one-way communication standards in the future. In that case, the following description may be read appropriately. The description of the advertisement of BLE will be described later.
  • the transmission control unit 104 may receive from the input unit 109 a user input for controlling data transmission by the transmission unit 106. In this case, the transmission control unit 104 requests the data management unit 102 to set a specific date and time data and sensor data based on a user input, or updates the reference value. In addition, the transmission control unit 104 can generate an advertisement packet regardless of user input, for retransmission of data transmitted in the past.
  • the reference value storage unit 105 has the transmission control unit 104 read and write the reference value. Further, the reference value stored in the reference value storage unit 105 may be read by the display control unit 110.
  • the transmitting unit 106 receives an advertisement packet of BLE from the transmission control unit 104, and transmits (advertises) this.
  • the motion sensor 107 may be, for example, an acceleration sensor or a gyro sensor.
  • the motion sensor 107 obtains acceleration / angular velocity data of three axes by detecting the acceleration / angular velocity received by the motion sensor 107.
  • the operation of the motion sensor 107 is controlled by, for example, a sensor control unit (not shown).
  • This acceleration / angular velocity data can be used to estimate the activity state (posture and / or motion) of the user wearing the data transmission device 100.
  • the motion sensor 107 associates the acceleration / angular velocity data with the date and time data received from the clock unit 108 and sends the data to the data management unit 102.
  • an environment sensor may be provided.
  • the environmental sensor may include, for example, a temperature sensor, a humidity sensor, an air pressure sensor, and the like. That is, the sensor data may be any data that the sensor measures a predetermined physical quantity and generates based on the measurement result.
  • the clock unit 108 instructs a date and time.
  • the clock unit 108 includes, for example, a crystal oscillator that vibrates at a fixed frequency, a divider circuit that divides its output to obtain a 1 Hz signal, and a counter that counts this signal to obtain a serial value indicating date and time. .
  • the clock unit 108 transmits date and time data (for example, the above-described serial value) indicating the current date and time to the biological sensor 101 and the motion sensor 107.
  • the date and time data can be used as a measurement date and time of biological data by the biometric sensor 101, a measurement date and time of acceleration / angular velocity data by the motion sensor 107, and the like.
  • the date and time data is referred to by the display control unit 110 for display on the display unit 120.
  • the clock section 108 (the serial value held by the clock section 108) may be designed to be adjustable (time setting) by user input, for example, but the input device 114 is simplified (due to the number of buttons) It may be reduced, etc.). Also in this case, it is possible to present the user with a relative date and time based on the current date and time such as "10 minutes ago”, “2 hours ago”, “yesterday”, "1 week ago”, etc. It is.
  • the input unit 109 receives user input.
  • the user input is, for example, for controlling data transmission by the transmission unit 106, for controlling data display by the display unit 120, or starts measurement by the biological sensor 101 or the motion sensor 107. It is for.
  • the user input for controlling the data transmission by the transmitting unit 106 is, for example, an instruction explicitly or implicitly instructing transmission of a specific set of date and time data and sensor data, an explicit or implicit change of the reference value It may be something to instruct.
  • an instruction explicitly or implicitly instructing transmission of a specific set of date and time data and sensor data an explicit or implicit change of the reference value It may be something to instruct.
  • the reference value since the reference value also functions as a substantial encryption key, the security of transmission data can be enhanced by actively changing the reference value. .
  • the input unit 109 transmits a user input for controlling data transmission by the transmitting unit 106 to the transmission control unit 104, and transmits a user input for controlling data display by the display unit 120 to the display control unit 110.
  • a user input for starting measurement by the motion sensor 107 is sent to a sensor control unit (not shown).
  • the display control unit 110 receives a set of date and time data and sensor data from the data management unit 102, and generates display data of the display unit 120 based on these.
  • the display control unit 110 may also generate display data for causing the display unit 120 to display date and time data held by the clock unit 108 with reference to the clock unit 108.
  • the display control unit 110 may generate display data for causing the display unit 120 to display the reference value with reference to the reference value storage unit 105.
  • the reference value since the reference value also functions as a substantial encryption key, the user manually inputs the reference value displayed on the display unit 120 into the data receiving apparatus 200, so that the third party can A reference value can be set in the data receiving apparatus 200 without using a wireless transmission that is at risk of interception due to.
  • the display control unit 110 sends the generated display data to the display unit 120.
  • the display control unit 110 may receive from the input unit 109 a user input for controlling data display by the display unit 120.
  • the display control unit 110 requests the data management unit 102 to set a specific date and time data and sensor data based on a user input, requests the clock unit 108 to obtain substantially latest date and time data, and a reference value.
  • the reference value is read from the storage unit 105 or the like.
  • the display unit 120 receives display data from the display control unit 110 and displays the display data.
  • a new node periodically transmits an advertisement packet that makes it known its own.
  • the new node can save power consumption by entering a low power consumption sleep state after transmitting an advertisement packet once and before transmitting it.
  • the receiving side of the advertisement packet since the receiving side of the advertisement packet also operates intermittently, the power consumption for transmitting and receiving the advertisement packet is small.
  • FIG. 6 shows the basic structure of the BLE wireless communication packet.
  • the BLE wireless communication packet has a 1-byte preamble, a 4-byte access address, a 2-39-byte (variable) protocol data unit (PDU), and a 3-byte cyclic redundancy check (CRC: Cyclic). And Redundancy Checksum).
  • the length of the BLE wireless communication packet is 10 to 47 bytes, depending on the length of the PDU.
  • a 10-byte BLE wireless communication packet (PDU is 2 bytes) is Empty Also called a PDU packet, it is periodically exchanged between the master and the slave.
  • the preamble field is prepared for synchronization of BLE wireless communication, and stores "01" or "10" repetitions.
  • the access address is a fixed numerical value in the advertising channel and a random access address in the data channel.
  • an advertisement packet which is a BLE wireless communication packet transmitted on an advertising channel, is targeted.
  • the CRC field is used to detect a reception error.
  • the calculation range of CRC is only the PDU field.
  • the PDU field of the advertisement packet will be described using FIG. Although the PDU field of the data communication packet which is a BLE wireless communication packet transmitted on the data channel has a data structure different from that of FIG. 7, in the present embodiment, the description is omitted because the data communication packet is not targeted.
  • the PDU field of the advertisement packet includes a 2-byte header and a payload of 0 to 37 bytes (variable).
  • the header further includes a 4-bit PDU Type field, a 2-bit unused field, a 1-bit TxAdd field, a 1-bit RxAdd field, a 6-bit Length field, and a 2-bit unused field. Including.
  • the PDU Type field stores a value indicating the type of this PDU.
  • TxAdd field a flag indicating whether or not there is a transmission address in the payload is stored.
  • RxAdd field a flag indicating whether or not there is a reception address in the payload is stored.
  • Length field a value indicating the byte size of the payload is stored.
  • the payload can store any data. Therefore, the data transmitting apparatus 100 stores the difference sensor data and the date and time data in the payload, using a data structure as exemplified in FIG. 8, FIG. 9, FIG. 10 or FIG. 14, for example.
  • the data structure of FIG. 8 can be used to transmit one user's blood pressure and pulse dose sensor data.
  • the data structure of FIG. 8 may be modified to transmit sensor data for a plurality of times.
  • the ID field stores an identifier representing a user.
  • An identifier representing the data transmission device 100 or the data reception device 200 may be stored instead of or in addition to the identifier representing a user.
  • the Time field stores date and time data.
  • the DifSys, DifDia and DifPulse fields store systolic blood pressure, diastolic blood pressure and pulse rate difference sensor data associated with date and time data, respectively.
  • the difference sensor data associated with the date and time data is not limited to one type, and may be a plurality of types.
  • the reference value used to generate the difference sensor data is not stored in the same packet as the difference sensor data. Therefore, even if a packet having the data structure of FIG. 8 is intercepted by a third party, this third party can not restore the original sensor data unless it knows the reference value. That is, according to the data structure of FIG. 8, sensor data can be substantially encrypted and transmitted securely. On the other hand, when the data receiving apparatus 200 can not specify the reference value, the data receiving apparatus 200 can not restore the original sensor data. Therefore, the data transmitting apparatus 100 may be controlled to transmit the reference value in response to some trigger such as a specific user input.
  • the reference value may be transmitted separately from the difference sensor data, for example, by the data transmission apparatus 100, or the average value, the minimum value, the maximum value, the median value, the mode value, or the minimum value of sensor data in the past week
  • the data receiving apparatus 200 may be set to a uniquely identifiable value, such as the average of the maximum value and the maximum value.
  • the reference value may be specified directly by user input.
  • the data structure of FIG. 9 can be used to transmit one user's blood pressure and pulse dose sensor data.
  • the data structure of FIG. 9 may be modified to transmit sensor data for a plurality of times.
  • the ID field, the Time field, the DifSys field, the DifDia field, and the DifPulse field in FIG. 9 are the same as in FIG.
  • the Baseline field stores an identifier representing a reference value used to generate difference sensor data.
  • This identifier indicates which one of a plurality of preset reference values has been used to generate difference sensor data.
  • four preset reference values may be provided: for users with severe hypertension, for users with mild hypertension, for users with average blood pressure and for users with hypotension.
  • the identifier can be expressed by 2 bits.
  • the preset reference value is not limited to this example, and may be three or less or five or more.
  • an identifier representing a reference value used to generate difference sensor data is stored in the same packet as the difference sensor data. Therefore, according to the data structure of FIG. 9, the data receiving apparatus 200 is set at the time of initial setting, for example, at the time of installation of a management application of biometric data, at the time of authentication of the data transmitting apparatus 100, etc. Also, the correspondence between the identifier and the preset reference value can be used to specify the preset reference value represented by the identifier stored in the packet, and sensor data can be restored reliably. On the other hand, even if a packet having the data structure of FIG.
  • the original sensor data is restored unless the third party knows the correspondence between the identifier and the preset reference value. I can not do it. That is, sensor data can be substantially encrypted and transmitted securely.
  • the preset reference value represented by each identifier is not fixed to all users, but is added with different offsets for each user. And may be randomized. Alternatively, the correspondence between the identifier and the preset reference value may not be fixed to all users, but may be randomized, for example, shuffled, for each user.
  • the data structure of FIG. 10 can be used to transmit multiple sets of sensor data for one user's blood pressure and pulse.
  • the ID field of FIG. 10 is similar to that of FIGS. 8 and 9.
  • statistical indexes of a plurality of sets of sensor data stored in the same packet for example, average value, minimum value, maximum value, median, mode, or minimum value and maximum value
  • the difference sensor data is generated based on each sensor data using an average of That is, the common reference value and a plurality of sets of difference sensor data are stored in the packet.
  • the Baseline field stores a reference value. This reference value may be a statistical indicator of multiple sets of sensor data stored in the same packet as described above.
  • the Baseline field can include a BSys field, a BDia field, and a BPulse field.
  • the Time 1 field stores date and time data representing the measurement date and time of the first set of sensor data.
  • systolic blood pressure, diastolic blood pressure, and pulse rate difference sensor data associated with date and time data stored in the Time1 field are stored, respectively.
  • the Time2 field stores date and time data representing the measurement date and time of the second set of sensor data.
  • systolic blood pressure, diastolic blood pressure, and pulse rate difference sensor data associated with date and time data stored in the Time2 field are stored, respectively.
  • a Time field When the third and subsequent sets of sensor data are stored in the packet, a Time field, a DifSys field, a DifDia field, and a DifPulse field may be added as necessary.
  • the reference value itself is stored in the same packet as the difference sensor data generated using the reference value. Therefore, the data receiving apparatus 200 can reliably restore sensor data.
  • this third party can restore the original sensor data if a packet having the data structure of FIG. 10 is intercepted by a third party.
  • the minimum values of systolic blood pressure, diastolic blood pressure and pulse rate are “105”, “72” and “60”, respectively.
  • sensor data can be converted into difference sensor data illustrated in FIG.
  • the data structure of FIG. 14 can be used to transmit multiple sets of sensor data of blood pressure and pulse of one user.
  • the ID field of FIG. 14 is the same as that of FIGS. 8, 9 and 10.
  • difference sensor data based on other sensor data is generated. That is, the first set of sensor data as a reference value and the second and subsequent sets of difference sensor data are stored in the packet.
  • the Baseline field stores a reference value. This reference value is the first set of sensor data as described above.
  • the Baseline field can include a Time1 field, a Sys1 field, a Dia1 field, and a Pulse1 field.
  • the Time 1 field stores date and time data representing the measurement date and time of the first set of sensor data.
  • the Sys1 field, Dia1 field, and Pulse1 field store systolic blood pressure, diastolic blood pressure and pulse rate associated with the date and time data stored in the Time1 field, respectively.
  • the Time2 field stores date and time data representing the measurement date and time of the second set of sensor data.
  • systolic blood pressure, diastolic blood pressure, and pulse rate difference sensor data associated with date and time data stored in the Time2 field are stored, respectively.
  • a Time field When the third and subsequent sets of sensor data are stored in the packet, a Time field, a DifSys field, a DifDia field, and a DifPulse field may be added as necessary.
  • the reference value itself is stored in the same packet as the difference sensor data generated using the reference value. Therefore, the data receiving apparatus 200 can reliably restore sensor data.
  • this third party can restore the original sensor data.
  • the capacity is reduced approximately equivalent to one set of difference sensor data as compared with the data structure of FIG. Is possible.
  • FIG. 15 schematically illustrates an example of a functional configuration of the data receiving apparatus 200.
  • the control unit 211 expands the program stored in the storage unit 212 in the RAM. Then, the control unit 211 interprets and executes this program by the CPU to control various hardware elements shown in FIG. Thereby, as shown in FIG. 15, the data receiving apparatus 200 includes the receiving unit 201, the data restoring unit 202, the reference value storage unit 203, the data managing unit 204, the data storage unit 205, and the transmitting unit 206. Act as a computer equipped with
  • the receiving unit 201 receives, from the data transmitting apparatus 100, a packet including sensor data and date and time data associated with the sensor data.
  • the receiving unit 201 extracts, for example, the payload of the PDU from the advertisement packet of BLE. Then, the receiving unit 201 may discard the received packet if the value of the ID field is inappropriate (for example, it does not match the value representing its own user). On the other hand, if the value of the ID field is appropriate (for example, it matches the value representing the user of the user), the receiving unit 201 sends various other data to the data recovery unit 202.
  • the receiving unit 201 sends the date and time data stored in the Time field, and the difference sensor data stored in the DifSys field, the DifDia field, and the DifPulse field to the data recovery unit 202.
  • the receiving unit 201 stores the date and time data stored in the Time field, the identifier representing the reference value stored in the Baseline field, and the DifSys field, the DifDia field, and the DifPulse field.
  • the difference sensor data is sent to the data restoration unit 202.
  • the receiving unit 201 includes reference values stored in the BSys field, the BDia field, and the BPulse field, and date / time data associated with the first set of difference sensor data stored in the Time1 field.
  • the second set of difference sensor data stored in the field is sent to the data restoration unit 202.
  • the receiving unit 201 stores the date and time data associated with the first set of sensor data stored in the Time1 field, and the reference value stored in the Sys1 field, Dia1 field, and Pulse1 field.
  • the first set of sensor data, date / time data associated with the second set of difference sensor data stored in the Time2 field, and the second set of difference sensor data stored in the DifSys2 field, the DifDia2 field, and the DifPulse2 field. Are sent to the data recovery unit 202.
  • the data recovery unit 202 receives various data including difference sensor data from the reception unit 201.
  • the data restoration unit 202 determines a reference value used to restore the original sensor data from the difference sensor data. How the data recovery unit 202 determines the reference value depends on the data structure of the packet.
  • the data restoration unit 202 can not receive the difference sensor data and the reference value together from the reception unit 201.
  • the reference value may be directly stored in received data other than this packet and given to the data recovery unit 202, may be identifiable based on the received data, or may be designated by user input, It may have been saved in the reference value storage unit 203.
  • the data recovery unit 202 determines the reference value based on the received data or the user input. If there is a possibility to reuse the determined reference value, the data restoration unit 202 may store the reference value in the reference value storage unit 203.
  • the data recovery unit 202 receives, from the reception unit 201, an identifier representing a reference value stored in the Baseline field.
  • the data recovery unit 202 can specify the reference value by reading out one of the plurality of preset reference values stored in the reference value storage unit 203 designated by the identifier.
  • the data restoration unit 202 receives, from the reception unit 201, the reference values stored in the BSys field, the BDia field, and the BPulse field. Therefore, the data recovery unit 202 can use these reference values as they are.
  • the data recovery unit 202 stores the first set of sensor data as a reference value stored in the Sys1 field, Dia1 field, and Pulse1 field from the receiving unit 201. Receive Therefore, the data recovery unit 202 can use these reference values as they are.
  • the data restoration unit 202 adds the difference sensor data to the determined reference value regardless of the data structure of the packet, and restores the sensor data corresponding to the difference sensor data.
  • the data restoration unit 202 sends the restored sensor data to the data management unit 204 together with the date and time data received from the reception unit 201.
  • the reference value storage unit 203 is read and written by the data recovery unit 202.
  • the reference value storage unit 203 may store preset reference values used in the data structure of FIG. 9. When the reference value is applied only once as in the data structures of FIGS. 10 and 14, the reference value storage unit 203 can be omitted because it is not necessary to store the reference value.
  • the data management unit 204 receives the date and time data and the sensor data from the data restoration unit 202, associates them with each other, and writes them in the data storage unit 205. Further, the data management unit 204 reads a set of date and time data and sensor data stored in the data storage unit 205 according to, for example, an instruction from a higher-level application (not illustrated), for example, a management application of biometric data, and the transmission unit 206 or not illustrated. Send to the display.
  • a higher-level application not illustrated
  • a management application of biometric data for example, a management application of biometric data
  • the data storage unit 205 is read and written by the data management unit 204 as a set of date and time data and sensor data.
  • the transmission unit 206 receives the set of date and time data and sensor data from the data management unit 204, and transmits them to the server 300 via the network (see FIG. 16).
  • the transmission unit 206 uses, for example, mobile communication or WLAN.
  • a wristwatch type wearable sphygmomanometer is shown as the data transmission device 100 in the example of FIG. 16, the appearance of the data transmission device 100 is not limited to this and may be a stationary type sphygmomanometer. , May be a sensor device that measures quantities related to other biometric information or activity information.
  • the server 300 corresponds to a database that manages sensor data (mainly biometric data) of a large number of users.
  • the server 300 responds to, for example, access from a health leader, an insurance company or a program operator's PC, etc., to provide for user health guidance, insurance participation assessment, performance evaluation of a health promotion program, etc.
  • the biometric data of the user may be transmitted.
  • each function of the data transmission device 100 and the data reception device 200 is realized by a general-purpose CPU.
  • some or all of the above functions may be realized by one or more dedicated processors.
  • the functional configurations of the data transmitting apparatus 100 and the data receiving apparatus 200 omission, replacement, and addition of functions may be performed as appropriate depending on the embodiment.
  • FIG. 17 is a flowchart illustrating an example of the operation of the data transmission apparatus 100.
  • the process sequence demonstrated below is only an example, and each process may be changed as much as possible.
  • steps may be omitted, replaced, or added as appropriate, according to the embodiment.
  • the operation example of FIG. 17 starts when the transmission control unit 104 receives, from the data management unit 102, a set of date and time data and sensor data to be transmitted to the data reception apparatus 200.
  • the transmission control unit 104 determines a reference value associated with sensor data to be transmitted (step S401). Specifically, the transmission control unit 104 may read the reference value from the reference value storage unit 105 when reusing the reference value used in the past. On the other hand, when updating the reference value, the transmission control unit 104 determines a new reference value as described later, and stores the determined reference value in the reference value storage unit 105.
  • the transmission control unit 104 calculates difference sensor data that is the difference between the reference value determined in step S401 and the sensor data (step S402). Then, the transmission control unit 104 generates a packet for one-way communication in which the difference sensor data and the date and time data calculated in step S402 are stored (step S403).
  • the data structures illustrated in FIG. 8, FIG. 9, FIG. 10 or FIG. 14 are available for packet generation, other data structures may be used.
  • the transmitting unit 106 transmits the packet generated in step S403 (step S404), and the process ends.
  • FIG. 18 is a flowchart illustrating an example of the operation of the data receiving apparatus 200.
  • the process sequence demonstrated below is only an example, and each process may be changed as much as possible.
  • steps may be omitted, replaced, or added as appropriate, according to the embodiment.
  • FIG. 18 shows an operation example until the original sensor data is restored from the difference sensor data stored in the packet transmitted by the data transmission apparatus 100.
  • the data receiving apparatus 200 repeatedly executes the operation example of FIG. 18 for each packet.
  • the receiving unit 201 receives a packet and extracts difference sensor data stored in the packet (step S501).
  • the data restoration unit 202 determines a reference value used to restore the original sensor data from the difference sensor data extracted in step S501 (step S502). As described above, how the data recovery unit 202 determines the reference value depends on the data structure of the packet.
  • the data restoration unit 202 adds the difference sensor data extracted in step S501 to the reference value determined in step S502, and restores sensor data corresponding to the difference sensor data (step S503). After this step S503, the process ends.
  • the data transmission apparatus determines the reference value associated with the sensor data, and calculates difference sensor data that is the difference between the reference value and the sensor data. Then, the data transmission device stores the difference sensor data in a packet for one-way communication instead of the sensor data, and transmits it to the data reception device. Then, the data receiving apparatus determines a reference value associated with the difference sensor data stored in the packet, and adds up the difference sensor data to restore the original sensor data.
  • the number of bits allocated for transmission of difference sensor data is the number of bits allocated for transmission of raw sensor data It can be suppressed compared to Therefore, according to the data transmission device and the data reception device, it is possible to reduce the capacity of packets transmitted by one-way communication.
  • Sensor data may also be substantially encrypted for secure transmission.
  • the data transmitting apparatus improves transmission efficiency by transmitting a packet including difference sensor data instead of sensor data.
  • the transmission control unit may use the second packet for one-way communication including the sensor data instead of the first packet including the difference sensor data. Packets may be generated by the transmitter and transmitted by the transmitter.
  • the transmission control unit transmits the packet types of the first packet and the second packet. It may include information to represent. According to this modification, it is possible to reliably obtain the effect of reducing the capacity by transmitting a packet including difference sensor data instead of sensor data.
  • a processor connected to the memory;
  • the processor is (A) a transmission control unit that generates a first packet for one-way communication including first difference sensor data; (B) configured to function as a transmitter configured to transmit the generated first packet;
  • the first difference sensor data is a difference between a first sensor data measured by a sensor and a reference value associated with the first sensor data.
  • Data transmission device With memory A processor connected to the memory;
  • the processor is (A) a transmission control unit that generates a first packet for one-way communication including first difference sensor data; (B) configured to function as a transmitter configured to transmit the generated first packet;
  • the first difference sensor data is a difference between a first sensor data measured by a sensor and a reference value associated with the first sensor data.
  • Data transmission device is (A) a transmission control unit that generates a first packet for one-way communication including first difference sensor data; (B) configured to function as a transmitter configured to transmit the generated first packet;
  • the first difference sensor data is a difference between a first sensor data
  • the processor is (A) a receiver for receiving a first packet for one-way communication including first difference sensor data; (B) The first difference sensor data included in the received first packet is added to a reference value associated with the first difference sensor data to be the source of the first difference sensor data Configured to function as a restoration unit that restores the first sensor data, The first difference sensor data is a difference between the first sensor data and the reference value. Data receiver.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Physiology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Databases & Information Systems (AREA)
  • Computing Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2018/028823 2017-08-09 2018-08-01 データ送信装置およびデータ受信装置 Ceased WO2019031340A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201880048931.5A CN110945964A (zh) 2017-08-09 2018-08-01 数据发送装置和数据接收装置
DE112018004061.5T DE112018004061T5 (de) 2017-08-09 2018-08-01 Datenübertragungsvorrichtung und Datenempfangsvorrichtung
US16/733,264 US11223974B2 (en) 2017-08-09 2020-01-03 Data transmission apparatus and data reception apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-154761 2017-08-09
JP2017154761A JP6920920B2 (ja) 2017-08-09 2017-08-09 データ送信装置およびデータ受信装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/733,264 Continuation US11223974B2 (en) 2017-08-09 2020-01-03 Data transmission apparatus and data reception apparatus

Publications (1)

Publication Number Publication Date
WO2019031340A1 true WO2019031340A1 (ja) 2019-02-14

Family

ID=65271316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/028823 Ceased WO2019031340A1 (ja) 2017-08-09 2018-08-01 データ送信装置およびデータ受信装置

Country Status (5)

Country Link
US (1) US11223974B2 (enExample)
JP (1) JP6920920B2 (enExample)
CN (1) CN110945964A (enExample)
DE (1) DE112018004061T5 (enExample)
WO (1) WO2019031340A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11431801B2 (en) * 2018-11-05 2022-08-30 Netapp Inc. Storage offload engine for distributed network device data
CN117044223A (zh) * 2020-12-28 2023-11-10 三菱电机株式会社 发送数据设定辅助程序、网关装置及发送数据设定辅助方法
US20240357646A1 (en) * 2023-04-18 2024-10-24 Silicon Laboratories Inc. Optimized sensor networks using bluetooth

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004187326A (ja) * 1999-08-06 2004-07-02 Matsushita Electric Ind Co Ltd データ伝送方法，データ伝送装置，及びデータ受信装置
JP2017041770A (ja) * 2015-08-20 2017-02-23 ラトックシステム株式会社 データ無線通信装置
JP2017129979A (ja) * 2016-01-19 2017-07-27 ウイングアーク１ｓｔ株式会社 データ通信装置、情報可視化システムおよびデータ通信用プログラム

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60022279T2 (de) * 1999-08-06 2006-02-23 Matsushita Electric Industrial Co., Ltd., Kadoma Datensende- und -empfangsgerät
JP5249851B2 (ja) * 2009-05-14 2013-07-31 パナソニック株式会社 データ伝送装置及びそれを用いた制御装置、センサー装置、照明装置、照明制御システム、放電灯点灯装置、ｌｅｄ点灯装置、有機ｅｌ点灯装置
JP5640341B2 (ja) * 2009-08-04 2014-12-17 オムロン株式会社 データ通信システム、データ通信方法、およびセンサ制御装置
US8475479B2 (en) * 2011-01-21 2013-07-02 Alcon Research, Ltd. Surgical probe
US8768265B2 (en) * 2011-11-29 2014-07-01 General Electric Company Method for reducing power consumption in node devices of a condition monitoring system
JP5906078B2 (ja) * 2011-12-20 2016-04-20 キヤノン株式会社 データ転送装置及びデータ転送方法
JP6064340B2 (ja) * 2012-03-01 2017-01-25 オムロン株式会社 電力量センサおよび電力量計測システム
US9491187B2 (en) * 2013-02-15 2016-11-08 Qualcomm Incorporated APIs for obtaining device-specific behavior classifier models from the cloud
US9749878B2 (en) * 2013-07-31 2017-08-29 Blackberry Limited System and method for managing communications for two networks in a communication device
JP5852620B2 (ja) * 2013-09-26 2016-02-03 有限会社Ｇｈ９ 低消費電力近距離無線通信システム
CN103944580B (zh) * 2014-04-14 2017-07-04 天津普仁万合信息技术有限公司 一种生理体征传感器持续采集信号的无损压缩方法
US10478127B2 (en) * 2014-06-23 2019-11-19 Sherlock Solutions, LLC Apparatuses, methods, processes, and systems related to significant detrimental changes in health parameters and activating lifesaving measures
US9197414B1 (en) * 2014-08-18 2015-11-24 Nymi Inc. Cryptographic protocol for portable devices
DE102014220687A1 (de) * 2014-10-13 2016-04-14 Continental Automotive Gmbh Kommunikationsvorrichtung für ein Fahrzeug und Verfahren zum Kommunizieren
WO2016090539A1 (zh) * 2014-12-08 2016-06-16 华为技术有限公司 一种数据传输方法及设备
US10560135B1 (en) * 2015-06-05 2020-02-11 Life365, Inc. Health, wellness and activity monitor
US9974492B1 (en) * 2015-06-05 2018-05-22 Life365, Inc. Health monitoring and communications device
US10388411B1 (en) * 2015-09-02 2019-08-20 Life365, Inc. Device configured for functional diagnosis and updates
JP6828035B2 (ja) * 2015-12-01 2021-02-10 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． アクティビティの識別及び追跡
CN105630158B (zh) * 2015-12-16 2018-06-29 广东欧珀移动通信有限公司 传感器数据处理方法、装置及终端设备
US20170228502A1 (en) * 2016-02-10 2017-08-10 Gaelen John Rickard Systems, Devices, and/or Methods for Managing Medical Information
JP2019513061A (ja) * 2016-03-31 2019-05-23 デックスコム・インコーポレーテッド 表示デバイス及びセンサ電子機器ユニットの通信のためのシステム及び方法
US10252145B2 (en) * 2016-05-02 2019-04-09 Bao Tran Smart device
US20180103859A1 (en) * 2016-07-30 2018-04-19 Catalina F Provenzano Systems, Devices, and/or Methods for Managing Patient Monitoring
EP3563224B1 (en) * 2016-12-27 2023-12-20 Dexcom, Inc. Systems and methods for patient monitoring using an hcp - specific device
US10921801B2 (en) * 2017-08-02 2021-02-16 Strong Force loT Portfolio 2016, LLC Data collection systems and methods for updating sensed parameter groups based on pattern recognition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004187326A (ja) * 1999-08-06 2004-07-02 Matsushita Electric Ind Co Ltd データ伝送方法，データ伝送装置，及びデータ受信装置
JP2017041770A (ja) * 2015-08-20 2017-02-23 ラトックシステム株式会社 データ無線通信装置
JP2017129979A (ja) * 2016-01-19 2017-07-27 ウイングアーク１ｓｔ株式会社 データ通信装置、情報可視化システムおよびデータ通信用プログラム

Also Published As

Publication number Publication date
US11223974B2 (en) 2022-01-11
US20200145880A1 (en) 2020-05-07
JP2019033452A (ja) 2019-02-28
DE112018004061T5 (de) 2020-04-16
JP6920920B2 (ja) 2021-08-18
CN110945964A (zh) 2020-03-31

Similar Documents

Publication Publication Date Title
US11171932B2 (en) Data transmitting apparatus, data receiving apparatus, method and program
JP5213097B2 (ja) センサノード及びセンサネットワークシステム
US11223974B2 (en) Data transmission apparatus and data reception apparatus
US20210243581A1 (en) Wireless device and wireless system
US11271667B2 (en) Data receiving apparatus, data transmission apparatus and data transmission system
US11317290B2 (en) Information processing apparatus, server, and data transmission system
US11122015B2 (en) Data transmitting apparatus
WO2019031338A1 (ja) 情報処理システム、データ送信装置、データ受信装置、情報処理方法及びプログラム
US20200106571A1 (en) Data communication system and data communication apparatus
JP6967911B2 (ja) データ受信装置およびデータ送信装置
WO2019031343A1 (ja) データ伝送システムとそのデータ送信装置及びデータ受信装置
US20250262079A1 (en) Black box joint brace
WO2019031336A1 (ja) データ送信装置、データ受信装置、方法及びプログラム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18844038

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 18844038

Country of ref document: EP

Kind code of ref document: A1