CN111053542A - Accompany arm ring based on thing networking - Google Patents

Accompany arm ring based on thing networking Download PDF

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Publication number
CN111053542A
CN111053542A CN201811199683.2A CN201811199683A CN111053542A CN 111053542 A CN111053542 A CN 111053542A CN 201811199683 A CN201811199683 A CN 201811199683A CN 111053542 A CN111053542 A CN 111053542A
Authority
CN
China
Prior art keywords
user
cloud platform
iot
data
heart rate
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.)
Pending
Application number
CN201811199683.2A
Other languages
Chinese (zh)
Inventor
邓成中
罗倩
袁兴
徐梓恒
李雪静
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.)
Xihua University
Original Assignee
Xihua University
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 Xihua University filed Critical Xihua University
Priority to CN201811199683.2A priority Critical patent/CN111053542A/en
Publication of CN111053542A publication Critical patent/CN111053542A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021Measuring pressure in heart or blood vessels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02438Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1112Global tracking of patients, e.g. by using GPS
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802Sensor mounted on worn items
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813Specially adapted to be attached to a specific body part
    • A61B5/6824Arm or wrist
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

The invention discloses an accompanying arm ring based on the Internet of things, which is used for detecting various body data indexes of a human body and realizing remote monitoring through the Internet of things. In order to achieve the purpose, the invention provides the following technical scheme: accompany and attend to the armlet and constitute by display screen, arm clitellum, sensor module, button and relevant circuit, include: a satellite positioning unit for measuring a position of a first user; the blood pressure, blood oxygen and heart rate detection unit is used for detecting the blood pressure, blood oxygen and heart rate of the first user; the device sends the detection data to the cloud platform through the NB-Iot network; the mobile phone APP unit is connected with the cloud platform and used for monitoring the state of the first user. The invention has the characteristics of advanced technology, accurate detection and simplified monitoring.

Description

Accompany arm ring based on thing networking
Technical Field
The invention relates to the field of Internet of things, in particular to an accompanying arm ring for detecting human body data characteristics based on the Internet of things.
Background
Along with the continuous improvement of the quality of life of people, people pay more and more high attention to various data indexes of a human body, such as blood pressure, heart rate, blood oxygen and the like are important points of daily attention of people, in the field of accompanying and attending, a positioning function is an important index, and various accompanying and attending devices on the market have a positioning function.
Along with the continuous development of the internet of things technology, the internet of things has been well applied in the fields of intelligent transportation, industrial monitoring, old people nursing, water system monitoring, farm management and the like, and in the accompanying and attending field, the internet of things is mainly used for monitoring patients in hospitals, but cannot enable everyone to monitor own physical characteristics through the internet of things, and meanwhile along with the development of the internet of things technology, an internet of things platform is gradually opened for users, and the users can design products based on the internet of things technology through corresponding protocols.
Along with the development of the smart phone, the smart phone enriches and simplifies the life of people to a great extent, various intelligent wearable devices in life can be connected with the smart phone to realize data transmission, so that a user can simply and clearly observe various data characteristics through the smart phone, and in the accompanying field, data observation only by means of a PC end is not convenient enough, so that data intercommunication between the APP at the mobile end and the PC end is also significant.
Disclosure of Invention
The invention aims to provide an Internet of things-based accompanying arm ring, which is used for detecting various body data indexes of a human body and realizing remote monitoring through the Internet of things, and in order to realize the aim, the invention provides the following technical scheme:
accompany and attend to the armlet and constitute by display screen, arm clitellum, sensor module, button and relevant circuit, include:
a satellite positioning unit for measuring a position of a first user;
the blood pressure, blood oxygen and heart rate detection unit is used for detecting the blood pressure, blood oxygen and heart rate of the first user;
the device sends the detection data to the cloud platform through the NB-Iot network;
the mobile phone APP unit is connected with the cloud platform and used for monitoring the state of the first user.
The display screen is an OLED display screen and is positioned in the middle of the arm ring; the part of the arm ring below the screen is in a hollow state and is used for placing a printed circuit board formed by connecting various sensors; the part right below the display screen, which is in contact with the arm, is made of transparent materials and is used for emitting infrared light when the heart rate is detected; there are two holes in the accompanying arm ring left side, one of them is the jack that charges, and the other is thing networking card jack, and its whole outward appearance is shown in fig. 1.
The satellite positioning unit is realized by an ATGM336H-5N module, the ATGM336H-5N module collects GPS coordinate data and uploads the GPS coordinate data to a cloud platform through an NB-Iot wireless network, then map positioning is realized through an open platform interface provided by a third-party map application, and the specific geographic position of a user is displayed through a map, and the method for opening the platform interface by the GPS coordinate data and the third-party map is as follows: the GPS coordinates are first converted into API coordinates of a third party map, and then the API coordinates are added to the map through the API coordinates using an official function provided by the third party map. The GPS positioning can be realized at a Web end and a mobile phone APP end through a Baidu map, and a second user can monitor the position of the first user in real time at the PC end and the mobile phone APP end and generate a motion track.
The blood pressure and heart rate detection unit mainly comprises 1 YK1801 pulse sensor chip, 1 analog front end MN8802 pulse chip and 1 SFB9712 algorithm chip, wherein the pulse sensor chip senses and extracts pulse information of a human body in a photoelectric volume pulse wave tracing (PPG) mode, serial port uart signals of the blood pressure and the heart rate are output through the analog front end MN8802 and the algorithm chip SFB9712, data are sent through a serial port through a fixed communication protocol (baud rate: 115200, check bit: NONE, data bit: 8 and stop bit: 1), the data can be uploaded to an Internet of things cloud platform through the NB-Iot module of claim 5, and a second user can monitor the blood pressure and the heart rate information of a first user in real time at a PC end.
The blood oxygen detection unit is realized by a MAX30102 blood oxygen sensing module, the MAX30102 is an integrated pulse oximeter and heart rate detector biosensing module, and integrates a red light LED, an infrared light LED, a photoelectric detector, an optical device and a low-noise electronic circuit with ambient light suppression, and transmits the acquired data through a standard I2C compatible communication interface. The data can be uploaded to a cloud platform of the internet of things through the NB-Iot module of claim 5, and the second user can monitor the blood oxygen information of the first user in real time at the PC terminal.
The NB-Iot Internet of things unit selects a China Mobile M5310 NB-Iot module, the NB-Iot module is an industrial grade two-frequency band NB-Iot wireless module, the NB-Iot module is used for realizing communication with an NB-Iot base station, namely data information detected in claims 3 and 4 is sent to the NB-Iot base station, the NB-Iot base station is communicated with a cloud platform, the NB-Iot Internet of things module adopts a low power consumption mode, the NB-Iot Internet of things module enters a dormant state for 5 minutes after sending data once, then sends the data again and sleeps again, the NB-Iot module connects the accompanying arm ring with a network through communication with the base station, and a user can detect information of the user on the cloud platform; the NB-Iot module realizes low power consumption of the accompanying arm ring through alternation of work and dormancy. The NB-Iot module uploads body detection data of a first user to the cloud platform, and a second user monitors the detection data of the first user in real time through the cloud platform.
Cell-phone APP unit is through being connected with the cloud platform, realizes information communication, and its demonstration information content includes: map location shows, blood pressure display, the heart rate shows, and the heart rate shows, the second user can observe first user's health state constantly through cell-phone APP, reaches the effect of long-range accompanying and attending to.
The invention has the following advantages:
1. important detection indexes of a human body can be integrated in a wearable arm ring;
2. the system can realize real-time positioning, monitor the position of a user in real time and achieve the aim of remote monitoring safety;
3. because be connected with the cloud platform through the thing networking, not only can reach the function of observing data at PC end and cell-phone APP end, can save a large amount of health and detect data simultaneously.
Drawings
Fig. 1 is a perspective view of an internet-of-things-based escort apparatus of the present invention;
fig. 2 is a front view of the internet of things based chaperone of the present invention;
FIG. 3 is a left side view of the Internet of things based chaperone of the present invention;
fig. 4 is a bottom cover view of the internet of things-based chaperone of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
as shown in fig. 1, an internet of things-based accompanying and attending device comprises a display screen 3, an arm ring belt 2, a charging jack 6, an internet of things card jack 7, a bottom cover 9, an internal sensor module and related circuits from a hardware level, wherein a touch key 4 is arranged at a middle position right below the display screen 3, the arm ring belt 2 comprises a buckle 1 and a buckle groove 5, and the sensor module comprises an ATGM336H-5N module, an MAX30102 module, a YK1801 pulse sensor chip, an MN8802 pulse chip, an SFB9712 algorithm chip, and an M5310 NB-Iot module; the system comprises a cloud platform 11 at a PC end and an APP 12 at a mobile phone end from a software layer.
Accompany and protect the middle part of ware bottom 9 and be light transmission zone 8, accompany and protect ware bottom 9 be set screw 10 all around, heart rate detection module and blood oxygen detection module's LED is located directly over light transmission zone 8 to the infrared light that launches pierces through human arm reaches the purpose of information acquisition.
When the escorting device is in a charged state, firstly, an Internet of things card of a mobile company is inserted into the network card insertion hole 7, networking is waited, and the escorting device can work normally after networking is successful; the using method of the arm girdle 2 is that the wearing position is the big arm position of the human arm, so that the position of the accompanying device is ensured to be flush with the heart when the blood pressure is measured; the user needs to wrap the arm girdle 2 around the large arm and place the buckle 1 in the proper buckle slot 5, thus completing the wearing work of the accompanying device.
The using method of the cloud platform 11 is that after a user logs in the cloud platform through registration, the cloud platform is connected with the internet of things card, then data information of the hardware end accompanying device can be checked, the data information comprises satellite positioning position information, blood pressure information, blood oxygen information and heart rate information, the cloud platform 11 has a function of storing information for a long time, and a second user can check the change state of the data information through the cloud platform. The application method of the APP 12 is that after a second user logs in an account number the same as that of the cloud platform, the second user can check data information synchronized with the cloud platform, so that the user can conveniently check the body detection state in a movable manner.
In light of the foregoing description of the preferred embodiments of the present invention, it is clear that many changes and modifications can be made by the workers skilled in the art without departing from the scope of the invention.

Claims (8)

1. The utility model provides a accompany arm-loop based on thing networking comprises display screen, arm girdle, sensor module and relevant circuit, its characterized in that includes:
a satellite positioning unit for measuring a position of a first user;
the blood pressure, blood oxygen and heart rate detection unit is used for detecting the blood pressure, blood oxygen and heart rate of the first user;
the device sends the detection data to the cloud platform through the NB-Iot network;
the mobile phone APP unit is connected with the cloud platform and used for monitoring the state of the first user;
the accompanying arm ring is composed of three parts, namely a hardware device (namely the arm ring), a cloud platform and a mobile terminal mobile phone APP, wherein the hardware device and the cloud platform are communicated through an NB-Iot internet of things, and the cloud platform and the mobile terminal mobile phone APP are communicated through a mobile network.
2. The accompanying armlet as claimed in claim 1, wherein the actual wearer of the accompanying armlet is called a first user, and the user (mostly family members of the first user) who monitors various data indexes through the cloud platform by the PC terminal and the mobile phone APP is called a second user; the first user and the second user may be the same person.
3. The chaperone arm ring according to claim 1, wherein the satellite positioning system unit comprises: the satellite positioning system is installed at a hardware device end, coordinate data acquired by the satellite positioning system are uploaded to a cloud platform through an NB-Iot wireless network, then map positioning is achieved through an open platform interface provided by a third-party map application, and the specific geographic position of a first user is displayed through the third-party map application.
4. The accompany armlet as recited in claim 1, wherein the blood pressure, blood oxygen, heart rate detection unit comprises: blood pressure, blood oxygen, heart rate detecting element install in hardware equipment end, detecting element is used for gathering first user's blood pressure, blood oxygen, heart rate data to upload to the cloud platform through NB-Iot wireless network with data, the cloud platform can be to uploading data long-term storage, second user alright look over first user's blood pressure, blood oxygen, heart rate data information and data variation at the cloud platform.
5. The accompany armlet as recited in claim 1, wherein the NB-Iot internet of things unit comprises: the NB-Iot Internet of things unit selects a China Mobile M5310 NB-Iot module, the NB-Iot module is an industrial grade two-frequency band NB-Iot wireless module, the NB-Iot module is used for realizing communication with an NB-Iot base station, namely data information detected in claims 3 and 4 is sent to the NB-Iot base station, the NB-Iot base station is communicated with a cloud platform, the NB-Iot Internet of things module adopts a low power consumption mode, the NB-Iot Internet of things module enters a dormant state for 5 minutes after sending data once, then sends the data again and sleeps again, the NB-Iot module connects the accompanying arm ring to a network through communication with the base station, and a second user can detect first information on the cloud platform; the NB-Iot module realizes low power consumption of the accompanying arm ring through alternation of work and dormancy.
6. The accompany arm ring as recited in claim 1, wherein the mobile phone APP unit comprises; cell-phone APP unit passes through mobile network and is connected with the cloud platform, realizes information communication, and its demonstration information content includes: map location shows, blood pressure shows, blood oxygen shows, and heart rate shows, and the second user can observe first user's health state constantly through cell-phone APP, reaches the effect of long-range accompanying and attending to.
7. The accompany armlet as claimed in claim 1, wherein the display screen is an OLED display screen, and is located in the middle of the armlet; the part of the arm ring below the screen is in a hollow state and is used for placing a printed circuit board formed by connecting various sensors; the part right below the display screen, which is in contact with the arm, is made of transparent materials and is used for emitting infrared light when the heart rate is detected; there are two holes in accompanying arm ring left side, one of them is the jack that charges, and the other is thing networking card jack.
8. An accompanying armlet based on the Internet of things is applied to the accompanying armlet as claimed in any one of claims 1-6, and comprises: a satellite positioning unit for measuring a position of a first user;
the blood pressure, blood oxygen and heart rate detection unit is used for detecting the blood pressure, blood oxygen and heart rate of the first user;
the device sends the detection data to the cloud platform through the NB-Iot network;
the mobile phone APP unit is connected with the cloud platform and used for monitoring the state of the first user;
according to the body data information of the first user is detected by the arm ring, the data information is uploaded to the cloud platform through the NB-Iot Internet of things, the second user can monitor the body condition information of the first user through the cloud platform, meanwhile, the cloud platform is connected with the mobile phone APP through the mobile network, and the second user can also monitor the body condition information of the first user through the mobile phone APP.
CN201811199683.2A 2018-10-16 2018-10-16 Accompany arm ring based on thing networking Pending CN111053542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811199683.2A CN111053542A (en) 2018-10-16 2018-10-16 Accompany arm ring based on thing networking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811199683.2A CN111053542A (en) 2018-10-16 2018-10-16 Accompany arm ring based on thing networking

Publications (1)

Publication Number Publication Date
CN111053542A true CN111053542A (en) 2020-04-24

Family

ID=70296368

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811199683.2A Pending CN111053542A (en) 2018-10-16 2018-10-16 Accompany arm ring based on thing networking

Country Status (1)

Country Link
CN (1) CN111053542A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205121417U (en) * 2014-09-02 2016-03-30 苹果公司 Wearable electronic device
CN107174216A (en) * 2017-07-25 2017-09-19 青岛科技大学 Wearable custodial care facility based on NB IoT
CN107422677A (en) * 2017-09-11 2017-12-01 杭州钛比科技有限公司 A kind of direct water dispenser control system based on NB IoT
CN108024745A (en) * 2015-09-25 2018-05-11 桑米纳公司 Biology sensor monitors and the system and method for track band

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205121417U (en) * 2014-09-02 2016-03-30 苹果公司 Wearable electronic device
CN108024745A (en) * 2015-09-25 2018-05-11 桑米纳公司 Biology sensor monitors and the system and method for track band
CN107174216A (en) * 2017-07-25 2017-09-19 青岛科技大学 Wearable custodial care facility based on NB IoT
CN107422677A (en) * 2017-09-11 2017-12-01 杭州钛比科技有限公司 A kind of direct water dispenser control system based on NB IoT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邵欣 等: "《物联网技术及应用》", 31 May 2018 *

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