Fig. 1. Schematic diagram of overall structure of system

Fig. 2. Schematic diagram of system operation mode

Fig. 3. Analysis diagram of prediction curves for relative included angles

Fig. 4. Real-time diagram of prediction curves for relative distances and included angles

Fig. 5. Composition block diagram of photoelectric measuring instrument host

Fig. 6. Schematic diagram of spectral data acquisition

Fig. 7. Spectral curves

Fig. 8. Schematic diagram of wireless base station

Fig. 9. Layout of sensor integration

Fig. 10. Main interface of software system

Fig. 11. Diagram of error analysis of angle measurement accuracy