YOSensi YO People Counter User manual

User guide v1.0

YO People Counter User guide v1.0
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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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Installation
Package contents
1. Device.
2. Warranty card.
Safety precautions
SAFETY PRECAUTIONS
SYMBOL
DESCRIPTION
Device is marked with a symbol saying that electrical and electronic
products may not be mixed with unsorted household waste. Remember
that batteries used to power the device must be treated at a specialised
treatment facility.
Remember about possible electrostatic discharge when replacing battery,
connecting input or doing some other operations near inside electronics.
Be careful while handling the device – dropping it may cause damage that will
affect the sensors and other electronics inside.
When installing the device on the wall remember to wear adequate protective
equipment.
To maintain the level of protection device cover screws must be properly
tightened. Device shouldn’t be used without cover.
Any actions inside the device's enclosure (excluding replacing batteries) must
be performed by trained personnel only.
Clean the device only with damp cloth.
Device is intended for indoor use. Make sure that device is not exposed for
long term UV rays and in an environment in the immediate vicinity of water
which may flood the device
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Installation guide
1. Important! Figure 12 shows the direction of detection, this must be taken into account when
mounting the device.
Figure 12 Showing the direction of detection.
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2. To open the enclosure, peel off the lower part, as shown in Figure 13.
Figure 13 Opening the enclosure of the device.
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3. YO People Counter can be powered in via USB-C connector, via power supply 6-30 DC or
5-21 AC. There are two ways to connect the device to the power supply.
A. The user must break the centre plastic circle labelled PUSH out of the mounting
bracket before installation. After that, route the cable through the centre hole of the
bracket.
Figure 14 Breaking out the plastic circle labelled PUSH.
Figure 15 Routing the power supply connector through the centre hole.
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Figure 16 Routing the USB-C cable through the centre hole.
A. The second option is routing the wire through the hole in the mounting bracket. You
can route the USB-C cable, 6-30 DC or 5-21 AC power supply cable depending on
the supply you need.
Figure 17 Routing the USB-C cable through the hole in the bottom of the device.
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Figure 18 Routing the power supply cable through the hole in the bottom of the device.
Figure 19 Bottom view of the device after connecting the supply via the bottom hole.
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4. There are two ways to mount the device into a wall.
A. Install the bottom part of the enclosure and mount four screws in each corner to the
wall.
Figure 20 Mounting the device using four screws.
B. Fit two mounting screws into the centre of the bottom case. Then, angle the bottom
of the enclosure and turn it clockwise.
Figure 21 Mounting the device using two screws at an angle.
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Figure 22 Mounting the device using two screws after a clockwise turn.
Remember to route the supply cable through the centre of the bottom enclosure before mounting
it to the ceiling or a wall.
5. Place the upper part of the device enclosure on the bottom part mounted on a wall.
Figure 23 Placing the top of the enclosure on the mounting bracket.
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Operation
IoT system components
Typical IoT systems consist of 3 main elements (Figure 24), brief described below. In order to set
communication, each element must be properly configured.
1. Node – device with sensors and a wireless communication module that gathers data, forms
the payload and sends it to the gateway.
2. Gateway – device similar to routers, equipped with a LoRa concentrator, that receives LoRa
packets and sends them to the Internet-connected server.
3. Server – in most cases, a cloud-based service where data is processed, stored, analysed, and
presented in user-friendly ways (via a user interface); Yosensi default and recommended
tools are Yosensi Management Platform (for IoT structure management) and Grafana (for
data presentation).
Figure 24 IoT system components.
Figure 25 Fresnel zone where communication between two antennas can occur.
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Device configuration
Configurable parameters
A few parameters must be set in order to send data to the gateway. The default firmware is
configured in OTAA connection type with predefined deveui,appkey (OTAA)and appskey,nwkskey
(ABP).
The configuration of the device is stored in a JSON format file divided into sections:
-info (generic, read only): information about the device,
-lorawan (generic): configuration data required to connect to the LoRaWAN,
-ble (generic): Bluetooth settings,
-device (dynamic): individual configuration for a specific device (the structure of this section is
different for each device).
- detection area (dynamic): individual configuration for the YO People Counter that detects
counts by various parameters. Depending on the application of the sensor in this section, you
can configure its features.
Figure 26 Definition of positive and negative angles in the detection area. Positive values of the beam angle
are more to the left side from the centre of the device, and negative values are more to the right side of the
threshold. A beam angle equal to zero means the object is in front of the device.
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