The target periodically sends system information data to the server. This serves as a keep-alive indicator for the server, confirming that the target system is still operational and in a healthy state.

PUB biathlon/server/system

PUBLISH biathlon/server/system

System Data Message

Contains system information and statistics

Payload

status_message_counter integer Required

Counter of sent status messages since system startup
timestamp integer(int64) Required

Unix timestamp in milliseconds
target_hostname string Required

Hostname of the target device
target_mac_address string Required

MAC address of the target device
target_ip_address string Required

IP address of the target device
target_lane integer Required

The current lane number of the target
target_type string Required

The target type for shooting position

Values are prone or standing.
free_heap integer Required

Free heap memory in bytes
total_heap integer Required

Total heap memory in bytes
free_flash integer Required

Free flash memory in bytes
total_flash integer Required

Total flash memory in bytes
cpu_temp number Required

CPU temperature in Celsius
wifi_rssi_dbm integer Required

WiFi signal strength in dBm
wifi_signal_strength string Required

WiFi signal strength as text

Values are Excellent, Very Good, Good, Fair, Weak, Unusable, Not Connected, or Unknown.
uptime integer Required

System uptime in seconds
sent_intermediate_target_results integer Required

Number of intermediate target results sent
sent_final_target_results integer Required

Number of final target results sent

Payload examples

{
  "status_message_counter": 123,
  "timestamp": 1730916415,
  "target_hostname": "DE_NW_SVS_EBTS_S01",
  "target_mac_address": "CC:7B:5C:F1:7F:B4",
  "target_ip_address": "192.168.1.100",
  "target_lane": 1,
  "target_type": "prone",
  "free_heap": 40963,
  "total_heap": 81920,
  "free_flash": 102400,
  "total_flash": 163840,
  "cpu_temp": 45.5,
  "wifi_rssi_dbm": -50,
  "wifi_signal_strength": "Very Good",
  "uptime": 4556,
  "sent_intermediate_target_results": 45,
  "sent_final_target_results": 13
}