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device_requirements.html
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device_requirements.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8">
<title>Device Requirements</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/Microsoft/vscode/extensions/markdown-language-features/media/markdown.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/Microsoft/vscode/extensions/markdown-language-features/media/highlight.css">
<style>
.task-list-item { list-style-type: none; } .task-list-item-checkbox { margin-left: -20px; vertical-align: middle; }
</style>
<style>
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe WPC', 'Segoe UI', 'Ubuntu', 'Droid Sans', sans-serif;
font-size: 14px;
line-height: 1.6;
}
</style>
</head>
<body>
<h1 id="Device-Requirements">Device Requirements</h1>
<h2 id="Constraints">Constraints</h2>
<ul>
<li>Battery life with custom software running for 8 days</li>
<li>Sensor sampling frequency >1/3 Hz</li>
<li>5 MB storage per sensor
<ul>
<li>Enough for 7 days of continuous logging at 1/3 Hz</li>
</ul>
</li>
<li>Sensors
<ul>
<li>Accelerometer</li>
<li>Global Positioning System (GPS)</li>
</ul>
</li>
<li>Data privacy
<ul>
<li>Ability to turn off communication capability of device</li>
<li>Data is stored on device
<ul>
<li>5 MB storage per sensor
<ul>
<li>Enough for 7 days of continuous logging at 1/3 Hz</li>
</ul>
</li>
</ul>
</li>
<li>Direct retrieval of GPS and other identifying data
<ul>
<li>No first-party (by company of device) logging of data</li>
</ul>
</li>
</ul>
</li>
<li>Reproducibility of data
<ul>
<li>Ability to turn off screen and all user interfacing</li>
</ul>
</li>
</ul>
<h2 id="Objectives-in-addition-to-Constraints">Objectives (in addition to Constraints)</h2>
<ul>
<li>Production at scale
<ul>
<li>Potential for automated data retrieval process</li>
<li>Potential for automated deployment of custom software to all devices</li>
</ul>
</li>
<li>Sensor sampling frequency of 1 Hz</li>
<li>15 MB per sensor
<ul>
<li>Enough for 7 days of continuous logging at 1 Hz</li>
</ul>
</li>
<li>Sensors
<ul>
<li>Heart rate (beats per minute)</li>
<li>Body presence (worn or not)</li>
<li>Barometer</li>
<li>Gyroscope</li>
<li>Orientation (quaternion)</li>
<li>Oxygenation</li>
</ul>
</li>
</ul>
</body>
</html>