Update SNR checks. SNR value of -32 means unknown

Add comments explaining the SNR handing in traceroute
This commit is contained in:
Brent Petit 2024-10-26 10:15:17 -05:00
parent 994a3ff2f8
commit 9b34840e4b

View file

@ -835,7 +835,10 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
let traceRoute = getTraceRoute(id: Int64(decodedInfo.packet.decoded.requestID), context: context)
traceRoute?.response = true
if routingMessage.route.count == 0 {
let snr = routingMessage.snrBack.count > 0 ? Float(routingMessage.snrBack[0]) / 4 : 0.0
// Routing messages snr values are snr * 4 stored as an int
// If a traceroute snr value is unknown this field will contain INT8_MIN or -128
// After converting to a float here, -32 is our unknown value.
let snr = routingMessage.snrBack.count > 0 ? (Float(routingMessage.snrBack[0]) / 4) : -32
traceRoute?.snr = snr
let logString = String.localizedStringWithFormat("mesh.log.traceroute.received.direct %@".localized, String(snr))
MeshLogger.log("🪧 \(logString)")
@ -848,7 +851,8 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
connectedHop.time = Date()
connectedHop.num = connectedPeripheral.num
connectedHop.name = connectedNode.user?.longName ?? "???"
connectedHop.snr = Float(routingMessage.snrBack.last ?? 0) / 4
// If nil, set to unknown, INT8_MIN (-128) then divide by 4
connectedHop.snr = Float(routingMessage.snrBack.last ?? -128) / 4
if let mostRecent = traceRoute?.node?.positions?.lastObject as? PositionEntity, mostRecent.time! >= Calendar.current.date(byAdding: .hour, value: -24, to: Date())! {
connectedHop.altitude = mostRecent.altitude
connectedHop.latitudeI = mostRecent.latitudeI
@ -868,8 +872,8 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
if routingMessage.snrTowards.count >= index + 1 {
traceRouteHop.snr = Float(routingMessage.snrTowards[index]) / 4
} else {
// If no snr in route, try last snr from node
traceRouteHop.snr = hopNode?.snr ?? 0
// If no snr in route, set unknown
traceRouteHop.snr = -32
}
if let hn = hopNode, hn.hasPositions {
if let mostRecent = hn.positions?.lastObject as? PositionEntity, mostRecent.time! >= Calendar.current.date(byAdding: .hour, value: -24, to: Date())! {
@ -886,12 +890,13 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
}
}
hopNodes.append(traceRouteHop)
routeString += "\(hopNode?.user?.longName ?? (node == 4294967295 ? "Repeater" : String(hopNode?.num.toHex() ?? "unknown".localized))) \(hopNode?.viaMqtt ?? false ? "MQTT" : "") (\(traceRouteHop.snr)dB) --> "
routeString += "\(hopNode?.user?.longName ?? (node == 4294967295 ? "Repeater" : String(hopNode?.num.toHex() ?? "unknown".localized))) \(hopNode?.viaMqtt ?? false ? "MQTT" : "") (\(traceRouteHop.snr != -32 ? String(traceRouteHop.snr) : "unknown ".localized)dB) --> "
}
let destinationHop = TraceRouteHopEntity(context: context)
destinationHop.name = traceRoute?.node?.user?.longName ?? "unknown".localized
destinationHop.time = Date()
destinationHop.snr = Float(routingMessage.snrTowards.last ?? 0) / 4
// If nil, set to unknown, INT8_MIN (-128) then divide by 4
destinationHop.snr = Float(routingMessage.snrTowards.last ?? -128) / 4
destinationHop.num = traceRoute?.node?.num ?? 0
if let mostRecent = traceRoute?.node?.positions?.lastObject as? PositionEntity, mostRecent.time! >= Calendar.current.date(byAdding: .hour, value: -24, to: Date())! {
destinationHop.altitude = mostRecent.altitude
@ -901,8 +906,8 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
}
hopNodes.append(destinationHop)
/// Add the destination node to the end of the route towards string and the beginning of teh route back string
routeString += "\(traceRoute?.node?.user?.longName ?? "unknown".localized) \((traceRoute?.node?.num ?? 0).toHex()) (\(traceRoute?.node?.snr ?? traceRoute?.node?.snr ?? 0.0)dB)"
var routeBackString = "\(traceRoute?.node?.user?.longName ?? "unknown".localized) \((traceRoute?.node?.num ?? 0).toHex()) (\(traceRoute?.node?.snr ?? traceRoute?.node?.snr ?? 0.0)dB) --> "
routeString += "\(traceRoute?.node?.user?.longName ?? "unknown".localized) \((traceRoute?.node?.num ?? 0).toHex()) (\(destinationHop.snr != -32 ? String(destinationHop.snr) : "unknown ".localized)dB)"
var routeBackString = "\(traceRoute?.node?.user?.longName ?? "unknown".localized) \((traceRoute?.node?.num ?? 0).toHex()) --> "
traceRoute?.hopsBack = Int32(routingMessage.routeBack.count)
for (index, node) in routingMessage.routeBack.enumerated() {
var hopNode = getNodeInfo(id: Int64(node), context: context)
@ -915,8 +920,8 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
if routingMessage.snrBack.count >= index + 1 {
traceRouteHop.snr = Float(routingMessage.snrBack[index]) / 4
} else {
// If no snr in route, try last snr from node
traceRouteHop.snr = hopNode?.snr ?? 0
// If no snr in route, set to unknown
traceRouteHop.snr = -32
}
if let hn = hopNode, hn.hasPositions {
if let mostRecent = hn.positions?.lastObject as? PositionEntity, mostRecent.time! >= Calendar.current.date(byAdding: .hour, value: -24, to: Date())! {
@ -933,9 +938,11 @@ class BLEManager: NSObject, CBPeripheralDelegate, MqttClientProxyManagerDelegate
}
}
hopNodes.append(traceRouteHop)
routeBackString += "\(hopNode?.user?.longName ?? (node == 4294967295 ? "Repeater" : String(hopNode?.num.toHex() ?? "unknown".localized))) \(hopNode?.viaMqtt ?? false ? "MQTT" : "") (\(traceRouteHop.snr)dB) --> "
routeBackString += "\(hopNode?.user?.longName ?? (node == 4294967295 ? "Repeater" : String(hopNode?.num.toHex() ?? "unknown".localized))) \(hopNode?.viaMqtt ?? false ? "MQTT" : "") (\(traceRouteHop.snr != -32 ? String(traceRouteHop.snr) : "unknown ".localized)dB) --> "
}
routeBackString += "\(connectedNode.user?.longName ?? String(connectedNode.num.toHex()))"
// If nil, set to unknown, INT8_MIN (-128) then divide by 4
let snrBackLast = Float(routingMessage.snrBack.last ?? -128) / 4
routeBackString += "\(connectedNode.user?.longName ?? String(connectedNode.num.toHex())) (\(snrBackLast != -32 ? String(snrBackLast) : "unknown ".localized)dB)"
traceRoute?.routeText = routeString
traceRoute?.routeBackText = routeBackString
traceRoute?.hops = NSOrderedSet(array: hopNodes)