YOSensi YO People Counter User manual

User guide v1.0

YO People Counter User guide v1.0
page 2/35
Release notes
Released
Version
Key changes
10.02.2023
1.0
Initial release.
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Content
Release notes 2
Content 3
Product description 3
Overview 3
Specifications 4
Physical 4
Operating conditions 4
Measured values 4
Internal Temperature and relative internal humidity 5
People counts from left to right and right to left 1
People counts sum from left to right and right to left & the difference between both sums 6
Power supply voltage 7
Installation 8
Package contents 8
Safety precautions 8
Installation guide 11
Operation 16
IoT system components 16
Device configuration 18
Configurable parameters 19
Parameter description 24
Parameter description for additional future usage 25
Configuration node 26
Connecting node with network 27
Yosensi Management Platform configuration 27
Payload description 29
Compliance statements 32
Revision history 32
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Product description
Overview
YO People Counter is a bi-directional device that uses a novel 24 GHz radar transceiver to detect
motion from both directions simultaneously. This device detects a person moving independently
when a certain distance exists between people and measures the speed of moving objects
approaching the sensor. This device counts people flow in buildings, exhibitions, and airports. Users
should install the device near the entrance of the building. A narrow corridor is recommended to
allow the device to work properly. Also, it should not be mounted where its field of view is close to the
moving objects, such as sliding doors.
Figure 1 Device top view.
Device sticker placed on the right side of the device enclosure contains information about model,
version, LoRaWAN region and 3 parameters important in case of device identification and
configuration:
- DEV EUI: unique device identifier required to connect via OTAA connection type to
LoRaWAN.
- DEV ADDR: address required to connect via ABP connection type to LoRaWAN.
- BLE MAC: bluetooth physical address.
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Figure 2 Device sticker.
Specifications
Physical
Figure 3 Dimensions of the device.
PHYSICAL SPECIFICATION
Dimensions
Height: 25.5 mm
Width: 86 mm
Depth: 86 mm
Colour
White
Mounting method
Horizontal
Vertical (can be screwed to the wall)
Enclosure material
ABS
Level of protection
IP40, UL94-V0
Weight
91 g
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Operating conditions
OPERATING CONDITIONS
Temperature
0° to 70°C
Humidity
0 to 90%
Placement
Indoor use
Power supply
USB-C 5 V DC
6 - 30 V DC
5 - 21 V AC
Power consumption
44 mA (normal work), 100 mA (max peak) - at 5V supply
voltage
Technology
Radar
Frequency: 24 GHz
Beam Aperture: 80° / 34°
Range: 10-500cm
Measured values
MEASUREMENT RANGES
Parameter
Measuring range
Accuracy
Temperature (internal)
-40°C to 125°C
±0,2°C (from 5°C to 60°C )
Relative humidity
0% to 100%
±2% (at 20% to 80% )
Left-to-right counter
0-2147483647 ( int32 )
-
Right-to-left counter
0-2147483647 ( int32 )
-
Sum-of-left to right counts
0-2147483647 ( int32 )
-
Sum-of-right to left counts
0-2147483647 ( int32 )
-
Difference between sum
counts
0-2147483647 ( int32 )
-
Internal Temperature and relative internal humidity
Sensors placed inside the device enclosure measure temperature and relative humidity. These
measurements monitor if the device is working in recommended conditions.
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Figure 4 Internal temperature example chart.
Figure 5 Internal humidity example chart.
People counts from left to right and right to left
Counts are the result of capturing people movement within the field of the radar located inside the
device's enclosure. The measurements monitor the flow of people or objects from left to right side
and right to left.
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Figure 6 Left-to-right counts example chart.
Figure 7 Right-to-left counts example chart.
People counts sum from left to right and right to left & the difference between both sums
The device sums the counts to check how many people passed by a sensor in both directions. It
compares those counts, and the difference of amount measurements gives the total people flow in
the building. The result shows the difference between the sum of people that entered and people
that left the room where the sensor is mounted.
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Figure 8 Sum of right–to-left counts in the example chart.
Figure 9 Sum of left-to-right counts in the example chart.
Figure 10 Difference between both count sums in people flow, the example chart.
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Power supply voltage
The supply voltage monitors the operating conditions of the device. With this data, it is possible to
detect anomalies and voltage fluctuations that may affect its correct operation.
Figure 11 Power supply voltage example chart.
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