What kinds of technologys might be applied in Location System? Which is better?

[real time location system]

In general, Location System technology can be divided into GNSS technology, wireless location technology and other, which mainly wireless location technology is applied more widely. Wireless technology mainly has the following several kinds: infrared, bluetooth, ultrasonic, RFID, Wifi, Zigbee, etc. These techniques all have advantages and disadvantages, a single technology application is more limited, so we can combine a variety of techniques for applications, such as combining the ultrasonic and RFID technology, which can take advantages both of ultrasonic positioning precision and RFID communication range to transmit loaction datas to master control terminal. Because indoor Location System, the scope of moving object is not too large, and portable devices need to be attached to the moving object above, these cases all accord with the application of RFID technology.

Mobile giants Nokia, Samsung, Sony Mobile and nineteen other companies have combined to form the In-Location Alliance, a cooperative that seeks to drive forward innovation and increase the adoption of indoor positioning technology and its related services. According to the group’s press release, the Alliance is set to focus on offering “high accuracy, low power consumption, mobility, implementability and usability.” By doing this, it hopes that it will create an ecosystem that will drive innovation, enhance delivery of the technology and ensure that mobile and technology companies introduce the technology in their products and services. With this in mind, the Alliance will form many of its solutions based on Bluetooth 4.0 and Wi-Fi standards that use existing or features that are soon coming. Business models are already being drawn up and it is expected that the first handset-based implementation will start rolling out in 2013.