The invention provides a large-scale multiple-object ultrasonic tracking and locating
system and method, relating to an indoor object tracking and locating
system and method based on ultrasonic wave. The large-scale multiple-object ultrasonic tracking and locating
system comprises an emitting
assembly, a receiving
assembly and a calculating display unit, wherein the emitting
assembly comprises a plurality of ultrasonic
signal emitters with different frequencies or different time slot features, and each emitter is installed on different objects and used for periodically emitting ultrasonic signals; the receiving assembly comprises a plurality of ultrasonic
signal receiving and
processing units for receiving and
processing the ultrasonic
signal emitted by the emitter; and the calculating display unit comprises a
USB (Universal Serial
Bus) and an upper computer three-dimensional display
server. The invention realizes the tracking and the locating of large-scale multiple-object by schemesof spatial
subdivision, time frequency combination, spatial handoff and the like. The locating system of the invention has the characteristics of large locating range, multiple tracking objects, no synchronous error, no need of
complex network protocol, low
power consumption, high stability and the like.