Detection system and method for dynamic positioning precision of POS (point of sale) system

The invention relates to a detection system and method for dynamic positioning precision of a POS (point of sale) system. The detection system comprises a tracking measurement device, a control device, a measurement cooperative target and a time service device, wherein the measurement cooperative target is mounted on a carrier according to placement parameters between the measurement cooperative target and the to-be-detected POS system; the motion state of the carrier where the measurement cooperative target is located is tracked, and data, measured by the tracking measurement device and the POS system, of the carrier where the measurement cooperative target is located are acquired; overall locus and point position comparison is performed on the data measured by the tracking measurement device and the POS system and the dynamic positioning precision of the POS system is determined. The problem of inaccurate detection precision caused by adoption of error estimation and imaging quality analysis in POS system precision detection at present is solved. The system and the method contribute to completion of a dynamic error model of a mobile measurement system, provide a basis for establishment of a unified sensor placement parameter calibration standard, play a role in promoting development of the mobile measurement technology and have important theoretical significance and application value.