This can be configured via the SafeDistance platform by means of a Downlink command. You can create Downlink Profiles on your account by clicking on the “Asset --> Downlink profiles” tab, as can be seen in the screenshot below.

A user can add multiple Downlink Profiles and assign this to the entire fleet, or a sub-range of                     devices within their fleet.


The example below, where a “Normal Operation” profile is made, contains the default                              factory settings of the SafeDistance Badge.

  • Lowering the Bluetooth threshold (-70dBm or lower) will decrease the Badge’s proximity distance range
  • Increasing the Bluetooth transmit power (-20dBm of higher) will increase the broadcast range of the SafeDistance Badge so other SafeDistance badges can detect it sooner.


 

Once the Downlink profile for a SafeDistance Badge, or set of SafeDistance Badges, has been configured, the message will be sent to, and queued at, the SafeDistance LoRaWAN server. 


The next time a SafeDistance Badge sends a Proximity Detection message or Heartbeat message (default every 5min) to the LoRaWAN Server, the Downlink message will be propagated to the SafeDistance Badge. 


No reboot is required on the SafeDistance Badge an changes will be applied ‘on-the-fly’.



List of TX Power and RX Threshold values and their expected proximity distance

For badges using badge firmware 13.25 or 13.26, please use the following values:

 

Rx levelApproximate range in meters with Tx power set to -4 dBmApproximate range in feets with Tx power set to -4 dBmApproximate range in meters with Tx power set to 0 dBmApproximate range in feets with Tx power set to 0 dBmApproximate range in meters with Tx power set to 4 dBmApproximate range in feets with Tx power set to 4 dBm
-58 dBmnot testednot tested0.41' 4"0.51' 8"
-59 dBmnot testednot tested0.41' 4"0.51' 8"
-60 dBmnot testednot tested0.41' 4"0.62'
-61 dBmnot testednot tested0.41' 4"0.62'
-62 dBmnot testednot tested0.41' 4"0.62'
-63 dBmnot testednot tested0.62'13' 3"
-64 dBmnot testednot tested0.82' 7"13' 3"
-65 dBmnot testednot tested13' 3"1.34' 3"
-66 dBmnot testednot tested13' 3"1.54' 11"
-67 dBmnot testednot tested13' 3"1.85' 11"
-68 dBmnot testednot tested13' 3"26' 7"
-69 dBmnot testednot tested13' 3"26' 7"
-70 dBmnot testednot tested26' 7"2.47' 10"
-71 dBmnot testednot tested26' 7"2.47' 10"
-72 dBmnot testednot tested26' 7"39' 10"
-73 dBmnot testednot tested26' 7"3.511' 6"
-74 dBmnot testednot tested2.47' 10"4.514' 9"
-75 dBmnot testednot tested2.47' 10"516' 5"
-76 dBmnot testednot tested39' 10"516' 5"
-77 dBmnot testednot tested39' 10"5.417' 9"
-78 dBmnot testednot tested39' 10"723'
-79 dBmnot testednot tested3.210' 6"8.527' 11"
-80 dBmnot testednot tested3.411' 2"929' 6"
-81 dBmnot testednot tested413' 1"not testednot tested
-82 dBmnot testednot tested4.514' 9"not testednot tested
-83 dBmnot testednot tested4.615' 1"not testednot tested
-84 dBmnot testednot tested723'not testednot tested
-85 dBmnot testednot tested723'not testednot tested
-86 dBmnot testednot tested929' 6"not testednot tested
-87 dBmnot testednot tested929' 6"not testednot tested


For badges using badge firmware 13.28, please use the following values:

 

Rx levelApproximate range in meters with Tx power set to -4dBmApproximate range in feet with Tx power set to -4dBmApproximate range in meters with Tx power set to 0 dBmApproximate range in feet with Tx power set to 0 dBmApproximate range in meters with Tx power set to 4 dBmApproximate range in feet with Tx power set to 4 dBm
-58 dBm0.10' 4"0.10' 4"0.10' 4"
-59 dBm0.10' 4"0.10' 4"0.20' 8"
-60 dBm0.10' 4"0.20' 8"0.20' 8"
-61 dBm0.10' 4"0.31'0.20' 8"
-62 dBm0.10' 4"0.31'0.20' 8"
-63 dBm0.10' 4"0.31'0.20' 8"
-64 dBm0.10' 4"0.31'0.31'
-65 dBm0.20' 8"0.31'0.31'
-66 dBm0.20' 8"0.41' 4"0.31'
-67 dBm0.20' 8"0.41' 4"0.31'
-68 dBm0.20' 8"0.41' 4"0.41' 4"
-69 dBm0.31'0.41' 4"0.62'
-70 dBm0.31'0.62'0.62'
-71 dBm0.31'0.62'0.62'
-72 dBm0.31'0.62'0.82' 7"
-73 dBm0.41' 4"0.82' 7"0.82' 7"
-74 dBm0.41' 4"0.82' 7"0.82' 7"
-75 dBm0.51' 8"13' 3"13' 3"
-76 dBm0.51' 8"13' 3"13' 3"
-77 dBm0.62'1.23' 11"13' 3"
-78 dBm0.62'1.34' 3"1.44' 7"
-79 dBm0.82' 7"1.34' 3"1.65' 3"
-80 dBm0.82' 7"1.44' 7"1.65' 3"
-81 dBm13' 3"1.65' 3"1.85' 11"
-82 dBm1.44' 7"1.85' 11"39' 10"
-83 dBm26' 7"26' 7"39' 10"
-84 dBm2.58' 2"39' 10"3.210' 6"
-85 dBm2.58' 2"39' 10"516' 5"
-86 dBm39' 10"3.411' 2"516' 5"
-87 dBm3.511' 6"4.815' 9"5.518' 1"