Optimization of Electronic Data Investigation Mode Based on Intelligent Perception and Positioning Technology

Table 1

Operational process of indoor positioning system based on visible light.

Step	Module	Operation
1	Visible light sensor	Collect received light intensity
2	System	Collect the corresponding acceleration sensor data and gyroscope sensor data
3	Positioning module	A series of candidate positions are generated according to the current scene, or candidate particles are selected in a particle filter
4	Pedometer	The RLS sequence collected in this step, the corresponding acceleration sampling sequence, and the gyroscope sampling sequence are packed as the input of the positioning module
5	Positioning module	The received light intensity of each candidate particle is calculated by the designed visible light propagation model
6	System	By comparing the received light intensity calculated by RLS and visible light propagation model, the system gives each candidate particle different weights. Particles with weak weight and those violating scene restrictions will be deleted. Further, the system checks whether the remaining particle sets meet the convergence requirements. If it is satisfied, the system outputs the best candidate particle and constantly updates its location for real-time tracking. Otherwise, the system is ready to accept the user’s next data input. In this process, the last round of surviving candidate particles is taken as candidate particles of the current calculation round