Merge pull request 'Fix issue #21 and add aircraft position tracking indicators' (#29) from feature/position-tracking-fixes into main

Reviewed-on: #29
This commit is contained in:
Ole-Morten Duesund 2025-08-31 11:41:48 +02:00
commit ec676f678a
8 changed files with 125 additions and 74 deletions

View file

@ -53,6 +53,7 @@
<!-- Summary stats -->
<div class="stats-summary">
<span id="aircraft-count">0 aircraft</span>
<span id="position-summary">0 positioned</span>
<span id="sources-count">0 sources</span>
<span id="active-clients">1 viewer</span>
<span id="connection-status" class="connection-status disconnected">Connecting...</span>
@ -208,6 +209,14 @@
<h3>Max Range</h3>
<div class="stat-value" id="max-range">0 km</div>
</div>
<div class="stat-card">
<h3>Aircraft with Position</h3>
<div class="stat-value" id="aircraft-with-position">0</div>
</div>
<div class="stat-card">
<h3>Aircraft without Position</h3>
<div class="stat-value" id="aircraft-without-position">0</div>
</div>
</div>
<!-- Charts -->

View file

@ -244,6 +244,8 @@ export class UIManager {
const activeViewersEl = document.getElementById('active-viewers');
const maxRangeEl = document.getElementById('max-range');
const messagesSecEl = document.getElementById('messages-sec');
const aircraftWithPositionEl = document.getElementById('aircraft-with-position');
const aircraftWithoutPositionEl = document.getElementById('aircraft-without-position');
if (totalAircraftEl) totalAircraftEl.textContent = this.aircraftData.size;
if (activeSourcesEl) {
@ -253,6 +255,14 @@ export class UIManager {
activeViewersEl.textContent = this.stats.active_clients || 1;
}
// Update position tracking statistics from backend
if (aircraftWithPositionEl) {
aircraftWithPositionEl.textContent = this.stats.aircraft_with_position || 0;
}
if (aircraftWithoutPositionEl) {
aircraftWithoutPositionEl.textContent = this.stats.aircraft_without_position || 0;
}
// Calculate max range
let maxDistance = 0;
for (const aircraft of this.aircraftData.values()) {
@ -270,10 +280,18 @@ export class UIManager {
updateHeaderInfo() {
const aircraftCountEl = document.getElementById('aircraft-count');
const positionSummaryEl = document.getElementById('position-summary');
const sourcesCountEl = document.getElementById('sources-count');
const activeClientsEl = document.getElementById('active-clients');
if (aircraftCountEl) aircraftCountEl.textContent = `${this.aircraftData.size} aircraft`;
// Update position summary in header
if (positionSummaryEl) {
const positioned = this.stats.aircraft_with_position || 0;
positionSummaryEl.textContent = `${positioned} positioned`;
}
if (sourcesCountEl) sourcesCountEl.textContent = `${this.sourcesData.size} sources`;
// Update active clients count

View file

@ -130,4 +130,4 @@ func main() {
fmt.Println("----------------------------------------")
}
}
}
}

11
debian/DEBIAN/prerm vendored
View file

@ -2,8 +2,8 @@
set -e
case "$1" in
remove|upgrade|deconfigure)
# Stop and disable the service
remove|deconfigure)
# Stop and disable the service on removal
if systemctl is-active --quiet skyview-adsb.service; then
systemctl stop skyview-adsb.service
fi
@ -12,6 +12,13 @@ case "$1" in
systemctl disable skyview-adsb.service
fi
;;
upgrade)
# Only stop service during upgrade, preserve enabled state
if systemctl is-active --quiet skyview-adsb.service; then
systemctl stop skyview-adsb.service
fi
# Don't disable - postinst will restart if service was enabled
;;
esac
exit 0

View file

@ -36,7 +36,7 @@ type VRSClient struct {
errChan chan error // Error reporting channel
stopChan chan struct{} // Shutdown signal channel
wg sync.WaitGroup // Wait group for goroutine coordination
// Reconnection parameters
reconnectDelay time.Duration // Initial reconnect delay
maxReconnect time.Duration // Maximum reconnect delay (for backoff cap)
@ -116,9 +116,9 @@ func (c *VRSClient) Stop() {
// Source status is updated to reflect connection state for monitoring
func (c *VRSClient) run(ctx context.Context) {
defer c.wg.Done()
reconnectDelay := c.reconnectDelay
for {
select {
case <-ctx.Done():
@ -127,16 +127,16 @@ func (c *VRSClient) run(ctx context.Context) {
return
default:
}
// Connect to VRS JSON stream
addr := fmt.Sprintf("%s:%d", c.source.Host, c.source.Port)
fmt.Printf("Connecting to VRS JSON stream at %s (%s)...\n", addr, c.source.Name)
conn, err := net.DialTimeout("tcp", addr, 30*time.Second)
if err != nil {
fmt.Printf("Failed to connect to VRS source %s: %v\n", c.source.Name, err)
c.source.Active = false
// Exponential backoff
time.Sleep(reconnectDelay)
if reconnectDelay < c.maxReconnect {
@ -144,21 +144,21 @@ func (c *VRSClient) run(ctx context.Context) {
}
continue
}
c.conn = conn
c.source.Active = true
reconnectDelay = c.reconnectDelay // Reset backoff
fmt.Printf("Connected to VRS source %s at %s\n", c.source.Name, addr)
// Create parser for this connection
c.parser = vrs.NewParser(conn, c.source.ID)
// Start processing messages
c.wg.Add(2)
go c.readMessages()
go c.processMessages()
// Wait for disconnect
select {
case <-ctx.Done():
@ -172,7 +172,7 @@ func (c *VRSClient) run(ctx context.Context) {
c.conn.Close()
c.source.Active = false
}
// Wait for goroutines to finish
time.Sleep(1 * time.Second)
}
@ -206,7 +206,7 @@ func (c *VRSClient) readMessages() {
// and conflict resolution based on signal strength
func (c *VRSClient) processMessages() {
defer c.wg.Done()
for {
select {
case <-c.stopChan:
@ -215,7 +215,7 @@ func (c *VRSClient) processMessages() {
if msg == nil {
return
}
// Process each aircraft in the message
for _, vrsAircraft := range msg.AcList {
// Convert VRS aircraft to internal format
@ -223,7 +223,7 @@ func (c *VRSClient) processMessages() {
if aircraft == nil {
continue // Skip invalid aircraft
}
// Update merger with new data
// Note: VRS doesn't provide signal strength, so we use a default value
c.merger.UpdateAircraft(
@ -232,7 +232,7 @@ func (c *VRSClient) processMessages() {
-30.0, // Default signal strength for VRS sources
vrsAircraft.GetTimestamp(),
)
// Update source statistics
c.source.Messages++
}
@ -258,75 +258,75 @@ func (c *VRSClient) convertVRSToAircraft(vrs *vrs.VRSAircraft) *modes.Aircraft {
if err != nil {
return nil // Invalid ICAO, skip this aircraft
}
// Create aircraft structure
aircraft := &modes.Aircraft{
ICAO24: icao,
}
// Set position if available
if vrs.HasPosition() {
aircraft.Latitude = vrs.Lat
aircraft.Longitude = vrs.Long
aircraft.PositionValid = true
}
// Set altitude if available
if vrs.HasAltitude() {
aircraft.Altitude = vrs.GetAltitude()
aircraft.AltitudeValid = true
// Set barometric altitude specifically
if vrs.Alt != 0 {
aircraft.BaroAltitude = vrs.Alt
}
// Set geometric altitude if different from barometric
if vrs.GAlt != 0 {
aircraft.GeomAltitude = vrs.GAlt
aircraft.GeomAltitudeValid = true
}
}
// Set speed if available
if vrs.Spd > 0 {
aircraft.GroundSpeed = int(vrs.Spd)
aircraft.GroundSpeedValid = true
}
// Set heading/track if available
if vrs.Trak > 0 {
aircraft.Track = int(vrs.Trak)
aircraft.TrackValid = true
}
// Set vertical rate if available
if vrs.Vsi != 0 {
aircraft.VerticalRate = vrs.Vsi
aircraft.VerticalRateValid = true
}
// Set callsign if available
if vrs.Call != "" {
aircraft.Callsign = vrs.Call
aircraft.CallsignValid = true
}
// Set squawk if available
if squawk, err := vrs.GetSquawk(); err == nil {
aircraft.Squawk = fmt.Sprintf("%04X", squawk) // Convert to hex string
aircraft.SquawkValid = true
}
// Set ground status
aircraft.OnGround = vrs.IsOnGround()
aircraft.OnGroundValid = true
// Set selected altitude if available
if vrs.TAlt != 0 {
aircraft.SelectedAltitude = vrs.TAlt
}
// Set position source
switch vrs.GetPositionSource() {
case "MLAT":
@ -334,7 +334,7 @@ func (c *VRSClient) convertVRSToAircraft(vrs *vrs.VRSAircraft) *modes.Aircraft {
case "TIS-B":
aircraft.PositionTISB = true
}
// Set additional metadata if available
if vrs.Reg != "" {
aircraft.Registration = vrs.Reg
@ -345,6 +345,6 @@ func (c *VRSClient) convertVRSToAircraft(vrs *vrs.VRSAircraft) *modes.Aircraft {
if vrs.Op != "" {
aircraft.Operator = vrs.Op
}
return aircraft
}
}

View file

@ -795,10 +795,13 @@ func (m *Merger) GetSources() []*Source {
//
// The statistics include:
// - total_aircraft: Current number of tracked aircraft
// - aircraft_with_position: Number of aircraft with valid position data
// - aircraft_without_position: Number of aircraft without position data
// - total_messages: Sum of all messages processed
// - active_sources: Number of currently connected sources
// - aircraft_by_sources: Distribution of aircraft by number of tracking sources
//
// The position statistics help assess data quality and tracking effectiveness.
// The aircraft_by_sources map shows data quality - aircraft tracked by
// multiple sources generally have better position accuracy and reliability.
//
@ -810,11 +813,22 @@ func (m *Merger) GetStatistics() map[string]interface{} {
totalMessages := int64(0)
activeSources := 0
aircraftBySources := make(map[int]int) // Count by number of sources
aircraftWithPosition := 0
aircraftWithoutPosition := 0
for _, state := range m.aircraft {
totalMessages += state.TotalMessages
numSources := len(state.Sources)
aircraftBySources[numSources]++
// Check if aircraft has valid position data
if state.Aircraft.PositionValid &&
state.Aircraft.Latitude != 0.0 &&
state.Aircraft.Longitude != 0.0 {
aircraftWithPosition++
} else {
aircraftWithoutPosition++
}
}
for _, src := range m.sources {
@ -824,10 +838,12 @@ func (m *Merger) GetStatistics() map[string]interface{} {
}
return map[string]interface{}{
"total_aircraft": len(m.aircraft),
"total_messages": totalMessages,
"active_sources": activeSources,
"aircraft_by_sources": aircraftBySources,
"total_aircraft": len(m.aircraft),
"aircraft_with_position": aircraftWithPosition,
"aircraft_without_position": aircraftWithoutPosition,
"total_messages": totalMessages,
"active_sources": activeSources,
"aircraft_by_sources": aircraftBySources,
}
}

View file

@ -157,10 +157,10 @@ type Aircraft struct {
BaroSetting float64 // Barometric pressure setting (QNH) in millibars
// Additional fields from VRS JSON and extended sources
Registration string // Aircraft registration (e.g., "N12345")
AircraftType string // Aircraft type (e.g., "B738")
Operator string // Airline or operator name
Registration string // Aircraft registration (e.g., "N12345")
AircraftType string // Aircraft type (e.g., "B738")
Operator string // Airline or operator name
// Validity flags for optional fields (used by VRS and other sources)
CallsignValid bool // Whether callsign is valid
PositionValid bool // Whether position is valid
@ -614,6 +614,7 @@ func (d *Decoder) decodeCPRPosition(aircraft *Aircraft) {
}
aircraft.Longitude = lon
aircraft.PositionValid = true
// CPR decoding completed successfully
}

View file

@ -34,30 +34,30 @@ type VRSMessage struct {
// VRSAircraft represents a single aircraft in VRS JSON format
type VRSAircraft struct {
Icao string `json:"Icao"` // ICAO hex address (may have ~ prefix for non-ICAO)
Lat float64 `json:"Lat"` // Latitude
Long float64 `json:"Long"` // Longitude
Alt int `json:"Alt"` // Barometric altitude in feet
GAlt int `json:"GAlt"` // Geometric altitude in feet
Spd float64 `json:"Spd"` // Speed in knots
Trak float64 `json:"Trak"` // Track/heading in degrees
Vsi int `json:"Vsi"` // Vertical speed in feet/min
Sqk string `json:"Sqk"` // Squawk code
Call string `json:"Call"` // Callsign
Gnd bool `json:"Gnd"` // On ground flag
TAlt int `json:"TAlt"` // Target altitude
Mlat bool `json:"Mlat"` // MLAT position flag
Tisb bool `json:"Tisb"` // TIS-B flag
Sat bool `json:"Sat"` // Satellite (JAERO) position flag
Icao string `json:"Icao"` // ICAO hex address (may have ~ prefix for non-ICAO)
Lat float64 `json:"Lat"` // Latitude
Long float64 `json:"Long"` // Longitude
Alt int `json:"Alt"` // Barometric altitude in feet
GAlt int `json:"GAlt"` // Geometric altitude in feet
Spd float64 `json:"Spd"` // Speed in knots
Trak float64 `json:"Trak"` // Track/heading in degrees
Vsi int `json:"Vsi"` // Vertical speed in feet/min
Sqk string `json:"Sqk"` // Squawk code
Call string `json:"Call"` // Callsign
Gnd bool `json:"Gnd"` // On ground flag
TAlt int `json:"TAlt"` // Target altitude
Mlat bool `json:"Mlat"` // MLAT position flag
Tisb bool `json:"Tisb"` // TIS-B flag
Sat bool `json:"Sat"` // Satellite (JAERO) position flag
// Additional fields that may be present
Reg string `json:"Reg"` // Registration
Type string `json:"Type"` // Aircraft type
Mdl string `json:"Mdl"` // Model
Op string `json:"Op"` // Operator
From string `json:"From"` // Departure airport
To string `json:"To"` // Destination airport
Reg string `json:"Reg"` // Registration
Type string `json:"Type"` // Aircraft type
Mdl string `json:"Mdl"` // Model
Op string `json:"Op"` // Operator
From string `json:"From"` // Departure airport
To string `json:"To"` // Destination airport
// Timing fields
PosTime int64 `json:"PosTime"` // Position timestamp (milliseconds)
}
@ -95,21 +95,21 @@ func (p *Parser) ReadMessage() (*VRSMessage, error) {
if err != nil {
return nil, err
}
// Trim whitespace
line = strings.TrimSpace(line)
if line == "" {
// Empty line, try again
return p.ReadMessage()
}
// Parse JSON
var msg VRSMessage
if err := json.Unmarshal([]byte(line), &msg); err != nil {
// Invalid JSON, skip and continue
return p.ReadMessage()
}
return &msg, nil
}
@ -146,13 +146,13 @@ func (p *Parser) ParseStream(msgChan chan<- *VRSMessage, errChan chan<- error) {
func (a *VRSAircraft) GetICAO24() (uint32, error) {
// Remove non-ICAO prefix if present
icaoStr := strings.TrimPrefix(a.Icao, "~")
// Parse hex string
icao64, err := strconv.ParseUint(icaoStr, 16, 24)
if err != nil {
return 0, fmt.Errorf("invalid ICAO address: %s", a.Icao)
}
return uint32(icao64), nil
}
@ -195,13 +195,13 @@ func (a *VRSAircraft) GetSquawk() (uint16, error) {
if a.Sqk == "" {
return 0, fmt.Errorf("no squawk code")
}
// Parse hex squawk code
squawk64, err := strconv.ParseUint(a.Sqk, 16, 16)
if err != nil {
return 0, fmt.Errorf("invalid squawk code: %s", a.Sqk)
}
return uint16(squawk64), nil
}
@ -231,4 +231,4 @@ func (a *VRSAircraft) GetTimestamp() time.Time {
// IsOnGround returns true if the aircraft is on the ground
func (a *VRSAircraft) IsOnGround() bool {
return a.Gnd
}
}