Track movements of 500 objects in one single room
Any sensor telemetry design must define the inputs, outputs and functions with a priority on bandwidth sharing, latency requirements and algorithms for bandwidth reduction based on content needs.

Until this is done, the answer is unknown if there is sufficient capacity.

The most probable solution is one where there may be concentrators with delegated communicators to chain far-field devices to the central repository in efficient bulk synchronous streams in a star hierarchy for maintaining low power and high bandwidth efficiency.

I recall an Automated Meter reading (AMR) solution at the company that I worked for in the mid-90's, had the only 2way system prototype in the world which could interface millions of meters on an ISM channel in the 928MHz band with a bandwidth of 6kHz by colour-channel sectorization and regional concentrators and a latency of 1 second for real-time user power reading interfacing to the utility's head-end data base for instant readings and TOU readings sent in larger intervals daily.  Meanwhile the rest of the competitors drove around in Vans due to excessive spread spectrum noise or still have manual digital meter scanners walking around today in Ontario.  The technology was sold out to Itron, our biggest competitor in the late 90's and the company was called Iris Systems Inc in Winnipeg. After 7 design generations with the last being an embedded SoC HC11 based chipset with our own 64kbps modem RF transceiver in 6kHz channel spacing. It had to cost only $75/end unit with all the RF repeater network and headend software included, but investors with deep pockets  had run out of patience. The basic sensor was built around  IR optical rotation detection on any model of existing mechanical meters in  gas, water and electric meters, designed to last for 50-100 yrs.