Introduction
and VS121 sensor supports counting the number of people within or without the drawing regions, then uploading the count value according to the reporting interval. Please ensure your sensor firmware version is the latest before testing.
Recommended Height
For region people counting feature, the recommended height is more than 2.5 m for sitting objects. Besides, please refer to below detection ranges in different heights:
| Version | Height | Recommended detection range |
| Standard Version | 2.3m | 2.6m*8.6m |
2.5m | 3.2m*9.8m | |
2.7m | 4.2m*13.6m | |
3m | 4.8m*14m | |
| 3.2m | 5.2m*15.4m | |
| 3.5m | 6m*17m | |
| 4m | 6.8m*18.8m | |
| High Ceiling Mount Version | 5m | 3.5m*10m |
| 6m | 4.5m*12m | |
| 7m | 5.5m*14m |
Illuminance Requirement
There is no requirement for illuminance, but we recommend turning on Wide Dynamic Range (WDR) function, which will make the image effect better.
Operation Guide
You can refer to the video below to know how to configure the region people counting feature and how this works.
Note: it's suggested to select the recognition scheme based on your detection environment.
Algorithm 1: Suitable for monitoring complex environments that have many objects, like office supplies (books, printers, lamps, etc.)
Algorithm 2: Suitable for monitoring simple and clean environments like meeting rooms.
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