BW SENSING B100 User manual

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Social Distancing Bracelet B100
User Manual

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1. Introduction to the Social Distancing Bracelet........................................................... 3
1.1 Introduction............................................................................................................ 3
1.2 Exterior....................................................................................................................4
1.3 Product List............................................................................................................ 4
1.4 Specification........................................................................................................... 5
2. User Instructions............................................................................................................. 6
2.1 Product Components........................................................................................... 6
2.2 Wearing Method.................................................................................................. 6
2.3 Charging Instructions...........................................................................................9
2.4 Interactive instructions....................................................................................... 10
3. Configuration Tool......................................................................................................... 11
3.1 Serial Connection................................................................................................. 11
3.2 Default Parameters............................................................................................. 12
3.3 Configuration Instructions................................................................................. 12

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1. Introduction to Social Distance Bracelet
1.1 Introduction
System is a set of ranging system based on Ultra-Wideband Technology, which
has the characteristics of high precision, large capacity, strong multi-path resistance
and low power consumption.
Bracelets worn on the person consistently monitor the distance to the
surrounding Bracelets. When the distance is less than the safe value, an alarm signal
will be generated immediately. The sound and light alarm reminds to prevent the
person from being too close and reduce the risk of virus spreading.
Figure 1-1 Schematic diagram of application

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1.2 Exterior
Figure 1-2 Front/Back views of Bracelet
Figure 1-3 Left/Right views of Bracelet
1.3 Product List
The product list is shown in the figure1-4. From left to right, there are the Bracelet,
charger, charging cable.

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Figure1-4 Product list
1.4 Specification
Bracelet Specifications
Ranging Accuracy: 10cm
Dimensions: 52×52×20mm
Charge/Power Interface: pogo pin-4 ( with magnetism )
Charging Time: ≤2h
Maximum Battery Life: ≥11h
Weight: ≤85g
Battery Type: Lithium Polymer Battery
Battery Level: 800mAh
Protection Level: IP68

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Working Temperature: -20℃~60℃
Storage Temperature: -20℃~85℃
Working Humidity: 0~95% non-condensing
2. User Instructions
2.1 Product Components
As shown in the figure below, the Bracelet provides two buttons, indicator lights
and charging interface.
Figure 2-1 Product components
2.2 Wearing Method
2.2.1 Schematic Diagram of Wearing

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Figure 2-2 Front view
Figure 2-3 Back view
2.2.2 Wearing Method
Braceletband through arm

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Braceletband passes through the metal buckle, then make the
Braceletband adjusted to the proper position. And the buckle needle
passes through the Braceletband hole
After the buckle needle passes through the Braceletband, fasten
the buckle with the fixing ring

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2.3 Charging Instructions
2.3.1 Charging with Charger
Use the charger and charging cable to complete the charging, as
shown in the figure below.
Figure2-4 Schematic diagram of charging

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2.4 Interactive Instructions
2.4.1 Operating Instructions
Power On: If product is in the power-off state, press and hold the
right(red) button for more than 3 seconds. When you feel the
vibration and see the LED flash, it means product is power-on
successfully.
Power Off: If product is in the power-on state, press and hold the
right(red) button for more than 3 seconds. When you feel the
vibration and see the LED flash, it means product is power-off
successfully.
Power Test: Press the left(green) button (less than 1s) and release. If
the product still has power, the vibrator will work and the LED flash;
If there is no power left, there will be no response.
2.4.2 Alarm Instructions
Warning: When the distance between the Bracelets is less than the
safe distance, the Bracelets will continue vibrating and the red LED
will flash until the distance between t Bracelets is greater than the
safe distance.
Working Status Indicator: When the Bracelet is working normally,
the LED flashes every 2s.
Charging: The LED flashes when the Bracelet is charging, and the
LED light is always on when it is fully charged.

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3. Configuration Tool (This function must be used with
multiple base stations)
3.1 Serial Connection
The connection diagram is as follows:
The serial port baud rate is selected as 460800, as shown in Figure 3-1.
Figure 3-1 Serial Port Configuration

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3.2 Default Parameters
Table 1 system default parameters
Default parameters and their range of values
Defaults
range
Frequency
Frequency
1Hz
0.05-50Hz
Channel
Channel
2
1/2/3/4
power
External
bypass
Enable/bypass
Manual
Manual
Manual / intelligent
Power value
1F1F1F1F
Alarm Distance
Enable
Off
Alarm
1m
Distance
Grade
L1
L0/L1/L2/L3 (L3
3.3 Configuration Instructions
Before configuring parameters, you need to select the Bracelet to be configured
in the [Message back] list.
[Message back] list operation: Selected: left mouse button; Uncheck:[Ctrl]+left
mouse button.
3.3.1 Social Distance Parameters Set-up

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Figure 3-2 safe distance parameter configuration
You can enter the value (precise to decimal) for the social distance. After clicking
the [Configure], you can check the parameters just configured in the [Message back]
panel. You can also use the [Query] button to directly query the parameters of the
current Bracelet.
The configuration above is only for [Message back – Social distance] selected.

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3.3.2 Configuring Ranging Parameters
Figure3-3 Ranging Parameter Configuration
Parameter Description
Frequency: 1 Hz means that the ranging request is sent every 1000ms.
Instructions
[Configuration] button: Configure the current input parameters to the Bracelet;
[Query] button: View the configuration parameters of the selected Bracelet;
[Restore Default] button: Restore to the initialization status parameter.
Configuration above is only effective for [Message back - ranging parameter]
selected Bracelet.

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3.3.3 Configuring Channel Parameters
Figure3-4 channel parameters
Parameter Description
Channel: different channels represent different wireless signal frequencies; Note
that there is no ranging between Bracelets in different channels.
Instructions
[Configuration] button: Configure the currently input parameters to the Bracelet;
[Query] button: View the configuration parameters of the current Bracelet;
[Restore Default] button: Restore to the initialization status.
Configuration above is only effective for [Message back - UWB parameters]
selected Bracelet. It is recommended to use the default parameters.

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3.3.4 Configuring Power Parameters
Figure3-5 Power Configuration
As shown in Figure 3-5, the UWB power parameters include external enable
power amplifier, manual power mode, and power consumption value.
Configure the UWB power parameters according to actual needs.
Configuration above is only effective for [Message back - UWB parameters]
selected Bracelet. It is recommended to use the default parameters.

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3.3.5 Distance Optimization Level Configuration
Figure 3-6 Distance optimization level configuration
Parameter Description
Distance optimization level: The distance optimization level is divided into 4 levels.
The default level is 1. The higher the optimization level, the better the distance
optimization effect; Note that the higher the optimization level, the greater the signal
delay will be.
Instructions
[Configuration]: Configure the distance optimization level parameter.
[Query]: Query the distance optimization level parameter.
Configuration above is only effective for [Message back – Social distance]
selected Bracelet.

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3.3.6 Ranging Information View
In [Message back], select [Ranging Information], as shown in Figure 3-7, right click,
two options will appear. You can choose clear or save. Clear data will clear all data,
save data will save the data of the selected item.
Figure3-7 Ranging Information View