Milesight VS132 3D ToF People Counting Sensor User Guide

Safety Precautions

• The device must not be disassembled or remodeled in any way.
• To avoid risk of fire and electric shock, do keep the product away from rain and moisture before installation.
• Do not place the device where the temperature is below/above the operating range.
• Do not touch components which may be hot.
• The device must never be subjected to shocks or impacts.
• Make sure the device is firmly fixed when installing.
• Do not expose the device to where laser beam equipment is used.
• Use a soft, dry cloth to clean the lens of the device.

Declaration of Conformity

VS132 is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.

[CE Certification] [FCC Certification] [RoHS Compliant]

Revision History

1. Product Introduction

1.1 Overview

VS132 is a LoRaWAN® 3D ToF people counting sensor designed to count the number of people entering and exiting. Applied the most advanced Time-of-Flight technology, VS132 only obtains depth maps instead of images to protect privacy and provide a high level of accuracy up to 99.5%. Cooperating with Milesight LoRaWAN® gateway and the Milesight IoT Cloud, it allows users to monitor the flow of people and trigger linkage to control other devices via browser or mobile App remotely. VS132 can be widely used in entrances or corridors of retail stores, malls, offices, subways, etc.

1.2 Key Features

• Up to 99.5% accuracy basing on advanced 3D Time-of-Flight technology
• Obtain depth map without images capturing, free from privacy concerns
• Effective in low-light or complete dark environments
• Bi-directional Counting
• Store a million data records locally
• DC or PoE power supply optional
• Exquisite design for multiple installation scenarios
• Equipped with Wi-Fi and Ethernet port for web GUI configuration
• Acquire people counting data either from LoRaWAN® or Ethernet port (HTTP Post, CGI)
• Function well with standard LoRaWAN® gateways and network servers
• Quick and easy management with Milesight IoT Cloud

2. Hardware Introduction

2.1 Packing List

The package contains the following items:

• 1 × VS132 Device
• 1 x Power Adapter
• 2 × Ear Mounting Kits
• 4 × Wall Mounting Kits
• 1 × Warranty Card
• 1 × Quick Guide

If any of the above items is missing or damaged, please contact your sales representative.

2.2 Hardware Overview

The device features a DC Power Interface and an Ethernet Port (PoE). It also includes a Threaded Hole (UNC 1/4-20) for mounting.

2.3 Ethernet Port Indicators

2.4 Dimensions (mm)

The device dimensions are approximately 180mm x 50mm x 50mm.

3. Power Supply

VS132 can be powered by 802.3at standard PoE or a power adapter (12VDC, 2A). If both interfaces are connected, the device will be powered by PoE.

Powering Methods:

• Powered by DC Power Adapter: Connect the DC power adapter to the VS132.
• Powered by a PoE Switch: Connect an Ethernet cable from the PoE switch to the VS132.
• Powered by a PoE Injector: Connect an Ethernet cable from the PoE injector to the VS132, and a power cable to the injector.

4. Access the Sensor

The VS132 sensor provides a user-friendly web GUI for configuration. Users can access it via Wi-Fi connection or Ethernet port. Recommended browsers include Internet Explorer, Firefox, Chrome, Microsoft Edge, and Safari. The default IP of the Ethernet port is 192.168.5.220, the default IP of Wi-Fi is 192.168.1.1, and the default SSID is People Counter_XXXXXX. The default information can be found on the device label.

4.1 Access with Wi-Fi

1. Power on the device.
2. Enable the Wireless Network Connection on your computer and search for the corresponding access point, then connect your computer to this access point.
3. Open a browser and type 192.168.1.1 to access the web GUI.
4. Select the language.
5. Users need to set the password and three security questions when using the sensor for the first time (these can be skipped by refreshing the webpage). After configuration, log in with username (admin) and the custom password.

Note:

• Password must be 8 to 16 characters long, containing at least two kinds of characters (numbers, lowercase letters, uppercase letters, special characters).
• You can click "Forgot Password" on the login page to reset the password by answering three security questions if you have set them previously.

4.2 Access with Ethernet

Step 1: Power on the device and connect the Ethernet port to a PC.

Step 2: Change the IP address of your computer to the 192.168.5.0 segment. This involves navigating to Start → Control Panel → Network and Internet → Network and Sharing Center → Ethernet → Properties → Internet Protocol Version 4 (TCP/IPv4).

Step 3: Enter an IP address within the same segment as the sensor (e.g., 192.168.5.61), ensuring it does not conflict with the existing network IP address.

Step 4: Open a browser and type 192.168.5.220 to access the web GUI. After successful login, you can view the configuration page.

5. Operation Guide

5.1 Preview

After logging into the device web GUI, you can view the live feed. The interface displays the entrance count and exit count.

Enable Tracks: When enabled, a tracking line is shown when people pass through the detection area.

5.2 Configuration

5.2.1 Rule

Users can set rules and Regions of Interest (ROI) to ensure accurate counting.

Rule Configuration

Note: Due to potential errors in ToF distance measurement (0.05 m), the Max Target Height should be set as the maximum pedestrian height plus 0.05 m, and the Min Target Height as the minimal pedestrian height minus 0.05 m. For example, if the pedestrian height is 1.6 m to 1.8 m, the Max and Min Target Height should be configured as 1.85 m and 1.55 m respectively.

Report Settings

LoRaWAN / HTTP:

HTTP Details:

{ "event":"People Counting", "device_name":"People Counter", "time":"2022/12/20 18:15:52.520", "report_type": "trigger", "in":1, "out":0, }

{ "event":"People Counting", "device_name":"People Counter", "time":"2022/12/20 18:15:52.520", "report_type": "period", "in_counted":10, "out_counted":10, "capacity_counted":0, }

Pass Area ROI

Region of Interest (ROI) is a selected subset of samples within a dataset identified for a particular purpose. Users can select entrance and exit areas to record people count values, indicating the number of people passing from one area to another.

Steps:

1. Click "Set Entrance Area" or "Set Exit Area".
2. Drag the mouse to draw the detection area. If an area already exists, you can click "Clear".
3. Click "Stop Drawing", then click "Save".

Note: The detection area should not fill the entire field of view; leave a certain interspace.

5.2.2 Traffic

The sensor counts the number of people passing from one area to another and uploads the count value according to the reporting interval. Ensure the device time is correct on the System > Time Configuration page before using this feature.

5.2.3 Communication

5.2.3.1 Ethernet

VS132 provides an Ethernet port for wired access. Users can obtain people counting data or configure the device via CGI. For CGI documentation, please contact Milesight IoT support at iot.support@milesight.com.

TCP/IP Settings

5.2.3.2 WLAN

WLAN Settings

DHCP Server Settings

5.2.3.3 LoRa

LoRa settings are used for configuring transmission parameters in a LoRaWAN® network.

Note:

• Please contact sales for device EUI list if there are many units.
• Please contact sales if you need random App keys before purchase.
• Only OTAA mode supports rejoin mode.
• For -868M model, default frequency is EU868; for -915M model, default frequency is AU915.

5.2.4 System

Basic Information

All information about the hardware and software can be checked on this page.

Time Configuration

User Management

Description: Click to type administrator password, then set three security questions for your device. In case that you forget the password, you can click "Forget Password" button on the login page to reset the password by answering three security questions correctly.

Security Configuration Issues

Security Question 1: What are your favorite games

Security Question 2: What is your favorite book

Security Question 3: What's your favorite color

There are fifteen default questions available, including:

• What are your favorite games
• What is your favorite book
• What's your favorite color
• What is your favorite movie
• What is your favorite flower
• What is your first mobile phone brand
• Where did you go on your first plane ride
• What is your father's name
• What is your mother's name
• What is the name of your high school teacher
• What is the name of your junior high school teacher
• What you are most familiar name is roommates school dormitory
• The most influential name of the person you
• Who is your favorite celebrity
• What is your favorite car brand

Click the admin on the user list, then you can click "Modify" to change the login password of this device.

Remote Management

You can connect the device to the Milesight DeviceHub management platform to manage the device centrally and remotely. For more details, please refer to the DeviceHub User Guide. Before connecting, ensure the device is connected to the network via the Ethernet port and the Internet connection is seamless.

System Maintenance

6. Installation Instruction

Parameter definition:

6.1 Installation Height

The maximum installation height is 3 m and the minimum installation height is h_max+d+Δd. For example, when the maximum pedestrian height is 1.8 m, then the minimum installation height is 1.8+0.5+0.05=2.35 m.

6.2 Covered Detection Area

The detection area covered by the device is related to the field of view angle of the device, the installation height and the target height. The length of the detection area is approximately x=2.1×(H-h_min) and the width of the detection area is approximately y=1.32 x (H-h_min).

For example, if the Minimum height of pedestrians is 1.6 m, the detection area corresponding to each installation height is as follows:

6.3 Environment Requirements

• Black floor/carpet may affect the depth map to produce a lot of noise, but will not affect the device to count people.

6.4 Installation

Step 1: Fix the two mounting ears to both sides of the device with screws.

Step 2: Drill 4 holes on the ceiling or wall according to the mounting ear's holes and fix the wall plugs into the holes, then fix the device to the wall plugs with mounting screws. When installing the device, it's suggested to fix the two screws on the top at first.

You can select the below mounting methods depending on the environment.

Ceiling Mount

Diagram description: Illustrates the device being mounted to a ceiling using mounting brackets.

Embedded Mount

Diagram description: Shows the device being recessed into a surface, such as a wall or ceiling, with its front face flush with the surface.

Wall Mount

Diagram description: Depicts the device mounted on a wall using brackets.

Besides, the device can be mounted with the mounting stand via the threaded hole.

Note:

• Tilt installation should be avoided. Ensure that the front of the device and the ground plane are parallel.
• Two devices should be avoided being installed too close since the ToF light from one device will affect the count accuracy of the other device. The distance between two devices should be in accordance with the coverage without overlap.

6.5 Factors Affecting Accuracy

• Wearing a fisherman's hat or carrying a cardboard box on the shoulder: The target will not be recognized because it will become unlike a human in the depth map.
• Handheld or cart-carrying a humanoid doll with sufficient height to pass by: The doll will be mistakenly detected because it is sufficiently human-like in the depth map.

Avoid installing the device against the wall and ensure the device is kept away from the wall by at least 20cm. When installed on the door lintel, the device needs to be noted flush with the lower edge of the door frame.

When installing devices on the top of swinging doors, it is suggested to keep the door normally open. If the door must be normally closed, please install the device on the other side of the door to keep away from the door movement. It is also suggested to keep away from the door with a distance of at least 20cm.

7. Device Payload

All data are based on the following format (HEX), the Data field should follow little-endian:

Channel1 | Type1 | Data1 | Channel2 | Type2 | Data2 | Channel 3 | ...

1 Byte | 1 Byte | N Bytes | 1 Byte | 1 Byte | M Bytes | 1 Byte | ...

For decoder examples, please find files on https://github.com/Milesight-IoT/SensorDecoders.

7.1 Uplink Data

VS132 reports basic information of the sensor whenever joining the network and the number of people according to settings.

Example:

1. Device information

2. People counter

7.2 Downlink Command

VS132 supports downlink commands to configure the device. Application port is 85 by default.

Note: After changing any parameter of LoRaWAN® setting, the device will re-join the network.

Example:

1. Disable Wi-Fi.

2. Set AU915 or US915 channel mask as 8-15.

ff0501ff00 ff05020000 ff05030000 ff05040000ff05050000

3. Reboot the device.

4. Set reporting interval as 20 minutes.