Ekahau RTLS

# Real-Time Location System : Ekahau RTLS  (RFID-over-Wi-Fi™) Architecture #

### WHAT ###
>
  - **Ekahau Vision™ Business Intelligence Software** : Ekahau Vision™ software calculates Ekahau Wi-Fi tag (active RFID) locations using patented algorithms based on probabilities, not crude triangulations methods
  	- An **open API** that simplifies integration into your ecosystem of  apps and devices
  	- Use the **Ekahau Mobile Vision™ application** to respond to and close out location-based events on the go, Award-winning project management, installation and Customer Service is included.
  - **Ekahau Wi-Fi tag** : 10+ varieties of small, battery-powered and re-chargeable RTLS tags, sensors and badges. Ekahau’s A4 and A4+ **active RFID tags** act as small computers that transmit location data to the Ekahau Vision™ software platform
  ![Ekahau W4 Wristband Tag](http://www.ekahau.com/userData/ekahau/why-ekahau/wi-fi-tags.png)<br>
 


### WHY ###
>
- **For Healthcare** <br>
	1. Asset Tracking & Management <br>
	![Ekahau A4 and A4+ Asset Tags](http://www.ekahau.com/userData/ekahau/wi-fi-tags/ekahau-a4-tag.jpg)<br><br>
	2. Patient Safety & Throughput<br>
 	![Ekahau W4 Wristband Tag](http://www.ekahau.com/userData/ekahau/wi-fi-tags/ekahau-w4-wearable-rfid-tag.jpg)<br><br>
	3. Staff Safety & Workflow Optimization<br>
 	![Ekahau B4 Tag with LED Display](http://www.ekahau.com/userData/ekahau/wi-fi-tags/ekahau-b4-tag.jpg)<br><br>
	4. Wireless Temperature & Humidity Monitoring<br>
 	![Ekahau Wireless TS1 & TS2 Temperature Sensors](http://www.ekahau.com/userData/ekahau/wi-fi-tags/ekahau-ts-temp-sensor.jpg)<br>
 	![Ekahau HS1 Humidity Sensor](http://www.ekahau.com/userData/ekahau/wi-fi-tags/ekahau-humidity-sensor.jpg)<br>
 	![Ekahau TS-c "Cube" Temperature Tag with Integrated Sensor](http://www.ekahau.com/userData/ekahau/wi-fi-tags/ekahau-tsc-temp-cube.jpg)<br><br>
	
- **Life Safety & Security**<br>
	1. Education & Schools (K-12) :<br>
	[![Education & Schools](http://www.ekahau.com/userData/ekahau/icons/education-demo-video-thumbnail.jpg)](http://youtu.be/LIY9g7pABFs)<br>

### HOW ###
運作原理: RFID-over-Wi-Fi™
![Ekahau TS-c "Cube" Temperature Tag with Integrated Sensor](http://www.ekahau.com/userData/ekahau/infographs/H_RTLS-grey_5-02.png)
> **First:**
>>  Ekahau’s real-time location tracking uses small, long-lasting, battery-powered **Wi-Fi tags** are attached to the tracked assets, refrigeration units or carried by staff.

>> Signal measurements are taken from the radio communication and delivered to the **Vision™ RTLS software controller**, along with other information such as button presses, battery information and temperature measurements. Wi-Fi Tags and Wi-Fi Access Points (APs) communicate using **standard 802.11 communications**

> **Second:**
>> **Ekahau Vision™ RTLS location engine** uses patented location “fingerprinting” to accurat****ely predict and display real-time asset and staff locations.

>> Received Signal Strength Measurements (RSSI) are transformed into accurate locations using [**patented  RFID-over-Wi-Fi technology**](http://arxiv.org/pdf/1004.4759.pdf?origin=publication_detail) used by Ekahau RTLS.

>> **Ekahau Vision™, our web-based analytics platform** establishes and processes the rules, messages and environmental data from tags and turns raw location data into dynamic maps, event-based alerts, 2-way communications, advanced reports and dashboards.    
 


### WHERE ###
> (醫院,公司,學校)
Active RFID is a long range communication approach that has a reading distance between 50 (150 feet) to 100 meters (300 feet).
 

### WHO (CASE Studies) ###
> Tracking Assets, Staff
  
### WHEN ###
> 用多久