Conventional positioning technology consists of the following types of technologies, and different positioning technologies have corresponding advantages and disadvantages.
Technology Roadmap | RFID | Bluetooth4.0/4.2 | UWB | BluetoothAOA | UWBAOA |
Accuracy | Regional positioning with no accuracy to speak of | 2-10 meters | 30-50 cm | 30-50 cm | 10-30 cm |
Mode | 125K low-frequency perception | RSSI triangulation | TDOA,TOA | AOA Lo | AOA Lo |
Frequency | 125K/433M/2.4GHz | 2.4GHz | 3.1G~10.6GHz | 2.4GHz | 3.1G~10.6GHz |
Number | Low frequency activator+RFID reading Writer | Bluetooth base station needs to be located in groups of three | UWB base stations must be located in groups of four | Single base station positioning | Single base station positioning |
Deployment height | Buried coil or 3 meters above the ground | 3-5 meters | 3-10 meters | 10 meters or 25 meters | No specific height restrictions |
Single base station coverage (No obstruction) | 15-20 meters | 10-20 meters | 15-30 meters | The coverage radius is 1.5 times the height from the ground, with a maximum of 15 meters | 30-50 meters |
Frequency | 1 time/second | 1 time/second | 10time/second | 10time/second | 10time/second |
Consumption | same as | low | high | low | high |
Cost | same as | low | high | low | centre |
Generality | RFID tags with poor universality | Bluetooth devices such as mobile phones and bracelets have good versatility | UWB label, poor universality | Bluetooth devices such as mobile phones and bracelets | UWB label, poor universality |