MAX-HEALTH-BAND

心率和活动监测仪评估和开发平台


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说明

MAX-HEALTH-BAND腕戴式心率和活动监测仪提供一种简便途径,从健康传感器析取高精度生命体征和原始数据,适合于可穿戴设计。这一独特的评估和开发平台使用经过优化的MAX86140光学脉搏血氧仪/心率传感器和MAX20303可穿戴设备电源管理方案,展示Maxim的运动补偿健康传感器算法。MAX-HEALTH-BAND通过Bluetooth®将算法输出和来自健康传感器的原始数据流化输出到智能手机app,用于定制算法开发。平台也支持white-box许可证。

除原始PPG和加速计数据外,MAX-HEALTH-BAND还检测步数、活动强度、心率,以及用于检测心率变异的心跳间隔。MAX-HEALTH-BAND配备腕戴式心率和活动腕带、USB充电线,以及用于下载Android应用的说明。

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关键特性

  • 监测活动和心率并将其流化输出到Android®移动App
  • 收集关于心跳的搏动生理数据
  • 提供访问传感器原始数据和算法输出的途径
  • 算法输出数据包括心率、心率变异、步数和活动强度
  • 仿真长达9个月的设计时间,适用于构建和原型设计
  • 与其他方案相比,只需不到一半的功耗和三分之一的空间
  • 单次充电可工作长达7天

应用

  • 健身和健康追踪器
  • 健康监测追踪器
  • 开发新用途和客户算法的可靠硬件

技术资料

用户指南 6712 Maxim Health Band User’s Guide

质量和环境数据

申请可靠性报告: MAX-HEALTH-BAND 
无铅封装的锡(Sn)晶须报告

其它资源

Software

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Quick Start Guide for the hBAND Watch

What You Need

  • MAX-HEALTH-BAND (hBAND) fitness watch
  • Android® device (e.g., phone, tablet, etc.) with Bluetooth® connection for data logging
  • micro-USB type-B cable (provided) for charging

Power On/Off and Wearing
During the first few seconds after powering on the watch, the watch sensor (the surface that normally faces the wrist when worn) should be off the wrist and exposed to ambient air. This is required for proximity detection and for the algorithm to work properly.

  1. To turn on the watch, hold the watch with the sensor surface exposed to ambient air and press the button down for two seconds. The watch vibrates and an hBAND logo appears after a few seconds. The watch is ready to be worn on the wrist as soon as the logo appears.
  2. After the hBAND logo appears, position the device approximately one finger width up the arm from the wrist bone (see figure below). If possible, wear the watch on the non-dominant hand, as this improves the quality of the data. The watch should fit tightly but comfortably around the wrist.

    Watch placed approximately one finger width above the wrist bone. Figure 1. Watch placed approximately one finger width above the wrist bone.

  3. To power off or reboot the watch, press the button down for 10 seconds. A power-off warning sign () is displayed before the watch powers off. Hold the button until the warning sign disappears to ensure that the watch is powered off.

NOTE: After powering up and placing the watch on the wrist, it can take up to one minute for the algorithm to initially report a heart rate value. In the interim, the display shows a short line ("-").

NOTE: If the watch is powered on or power-cycled while being worn on the wrist, lift the watch one inch away from the wrist surface for more than one second; this updates the proximity setting without you needing to completely take off the watch. This can be done at any time (e.g., during any operation mode, and even during data logging). During the process, be sure not to insert fingers in the one-inch clearance space between the watch and the skin. Make sure the strap is tightly fitted around the wrist afterwards.

Low Battery/Charging
The watch has a screen showing remaining battery life. Currently, the device does not have a warning for low battery.

The watch can be recharged using a micro-USB type-B cable (provided). When connecting the watch to a charger, the device vibrates and displays a recharging screen. Removing the watch from the charger will causes the device to vibrate.

Modes
The watch has the following modes: sampled mode and continuous mode. The operating mode can be changed from the watch by pressing the button down for one second. The watch vibrates as an indicator of mode change.

Sampled Mode
The watch is in sampled mode by default. In this mode, the device measures the heart rate every five minutes or whenever the button is pressed. Sampled mode display items are shown in the figure below.

Sampled mode display. Figure 2. Sampled mode display.

Continuous Mode
In continuous mode, photoplethysmogram (PPG) and acceleration are sampled constantly at 100Hz and averaged over four samples. Heart rate (HR) is estimated once per second. In addition, a small heart is shown in the display's upper-left corner while the device is in continuous mode. Continuous mode display items are shown below.

Continuous mode display. Figure 3. Continuous mode display.

Heart Rate Display in Both Modes
The following heart rate display items appear in both sampled mode and continuous mode.

Heart rate display. Figure 4. Heart rate display.

Health Map App

For data logging, the user must install the provided Health Map app for Android.

To ensure uninterrupted data logging and watch connection, change the display setting of the Android phone or tablet to keep screen always ON before running the app.

Installing the App
To install the Health Map app:

  1. Save the provided .apk-file to a location that you can access by phone (for example, to the phone memory if you have a file browser or to Dropbox®). Accessing the file prompts the user to install the app.
  2. If the app detects that the firmware is outdated, you can upgrade the firmware.
  3. Grant permission when the app asks for access to the files on the phone and the location. These are required for the Bluetooth connection to work.

Connecting to an hBAND Watch
The app's initial start-up screen is blank with a SCAN button at the top right corner.

To connect the Health Map app to an hBAND device:

  1. Press the SCAN button in the top right corner to bring up a list of available devices in range.
  2. Select the name of the sample device, hBAND.

The main screen (see figure below) is displayed after a successful connection.

Health Map main screen. Figure 5. Health Map main screen.

Collecting Data
The watch can measure both optical count and HR. By saving data to a database, users can access the raw optical count, computed HR based on an internal algorithm, and other information.

To start data collection:

  1. Press the three dots in the upper right corner to bring up a pop-up menu (see figure below).

    Pop-up menu. Figure 6. Pop-up menu.

  2. Select Continuous mode for a fast sampling rate.
  3. Select either RAW or HR+RAW. Both RAW and HR+RAW export identical data to the database. When HR+RAW is selected, however, the heart rate value is also displayed on the phone display screen in real time.

The Raw Data icon on the main screen is automatically turned to ON.

Data is now being stored in the device memory. As long as the Bluetooth connection remains, data is transferred (and deleted) from the watch memory to the phone database. If the Bluetooth connection is interrupted while data is being collected in the device memory, new data is not lost, but is streamed to the phone as soon as the Bluetooth connection is reestablished.

NOTE: Raw data refers to the optical and accelerometer data before it is fed through an internal algorithm.

To stop data collection:

  1. Press the three dots in the upper right corner to bring out a pop-up menu.
  2. To stop saving data to database, select HR. The RAW DATA icon status is changed to OFF.

Viewing Real-Time Data
To see real-time charting of raw data:

  1. Return to the main screen.
  2. Select the RAW DATA icon in the main screen. A new charting window opens (see figure below).

Real-time charting window. Figure 7. Real-time charting window.

To close the charting window:

  1. Select the Back button on the Android device.
  2. Close the charting window and return to the main screen as soon as visualization of data is no longer required.

NOTE: When the charting window is open, data is stored locally on the watch, but it is not streamed to or synchronized with the database on the phone until the charting window is closed. To ensure proper saving of data to the database, exit the real-time charting window and return to the main screen promptly after validation is complete.

Exporting Real-Time Data
The user can export, or copy, the SQLITE database to a .csv file. When exporting, the original data remains in the SQLITE database, and newly collected data is appended to it. Subsequent exports of database data into .csv files contains both previous and new data. Therefore, when starting a new study, it is recommended that the user clears the database by deleting the SQLITE files before data acquisition. New SQLITE files are created automatically in the next data-logging session.

To export data to .csv format for analysis:

  1. Press the three dots in the upper right corner of the main screen.
  2. Select Export DB.

For more details regarding the output file format, see the "hBAND User's Guide."

Got a Wearable Health Design Idea? Here’s How to Make It Accurate

Summertime Fun Outside the Classroom


型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
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相关资料


MAXM86161
单电源、集成光模块,用于HR和SpO2测量

  • 完备的单通道、光学数据采集系统
  • 内置算法进一步增强抑制快速环境瞬态
  • 结构针对反射心率和SpO2监测进行了优化

MAX30208
±0.1°C精度、I2C接口数字温度传感器

  • 高准确度、高精度
  • 低功耗
  • 小尺寸

类型 编号 PDF 标题
用户指南 6712 Maxim Health Band User’s Guide