NMIX 2020 1nd Edition Lecture 11Outline of Current Lecture LocationI. Holy grail for New Mediaa. What we do is determined by where we areII. Historya. Exploring at sea first created the need for global positioningb. Landmarks were the way we navigatedi. Limited at sea because you had to stay by the shoreIII. Latitude & Longitudea. World is a gridb. Lattitudei. Tells you how far north or south you areii. Determined by the height of the sunc. Longitude i. Difficult to determine because of the spinning of the earth and the timing involvedii. Requires more technology to calculateiii. 1 hour = 15 degreesd. Prime Meridiani. 0 degrees longitudeIV. Global Positioning Systema. Inspired by the sounds of Sputnikb. Pitch gave locationc. Satellites used for locationV. Positioninga. Orbits for satellites were calculatedb. Geosynchronous satellite calculated how far you were from itVI. Trilateration a. Location based on differenceVII. Distance from Satellitesa. Signals travel at a known speed so distance is easily calculatedb. How long it takes for signal to reach receiveri. - Pseudo-random codeii. - long digital patteriii. - satellite sends it outThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.iv. - receiver knows patternv. - Starts at midnightvi. - Measures difference between signalc. No communication from the receiver as it is just listeningd. The open signal allows for public accessVIII. E911a. Locates the geographic location of a caller on a cellular deviceb. Carriers were hesitant to agreeIX. Location uses in new servicesa. Four Squarei. Social gaming for 3 million usersb. Shopkicki. Loyalty system that rewards you for walking into storesc. Bluetooth Low Energyi. Reduces power consumption & cost with a similar communication rangeii. Micro location contextiii. Estimate 1. “small wireless sensors that you can attach to any location or object. They broadcast tiny radio signals which your smartphone can receive and interpret, unlocking micro-location and contextualawareness”d. Trackingi. Is it ethical?ii. Used for geofencing, personal uses, in cars, amber alerts,