update: 1. GPS，Location，Remote，Settings To Singleton; 2. alter code & drive behavior code

code/alert.py

@@ -6,23 +6,22 @@ from usr.logging import getLogger
 
 log = getLogger(__name__)
 
-# TODO: Use objec model code?
+
 ALERTCODE = {
     30001: 'fault_alert',
     30002: 'low_power_alert',
     30003: 'over_speed_alert',
     30004: 'sim_out_alert',
     30005: 'disassemble_alert',
-    # 30006: 'shock_alert',  # TODO: NOT USED
     40000: 'drive_behavior_alert',
     50001: 'sos_alert',
 }
 
-DRIVEBEHAVIORCODE = {
-    1: 'quick_start',
-    2: 'quick_stop',
-    3: 'quick_turn_left',
-    4: 'quick_turn_right',
+DRIVE_BEHAVIOR_CODE = {
+    40001: 'quick_start',
+    40002: 'quick_stop',
+    40003: 'quick_turn_left',
+    40004: 'quick_turn_right',
 }
 
 
@@ -38,9 +37,9 @@ def alert_process(argv):
     '''
     alert_signals_queue data format
 
-    (300001, {})
+    (30001, {'local_time': 1646731286})
 
-    (400000, {40001: True})
+    (40000, {'drive_behavior_code': 40001, 'local_time': 1646731286})
     '''
     self = argv
     while True:
@@ -58,7 +57,7 @@ def alert_process(argv):
                 log.error('altercode (%s) is not exists. alert info: %s' % data)
 
 
-class AlertMonitor(object):
+class AlertMonitor(settings.Singleton):
     '''
     Recv alert signals and process them
     '''

code/location.py

@@ -43,7 +43,7 @@ def gps_data_retrieve_thread(argv):
             self.gps_data = self.uart_read(toRead).decode()
 
 
-class GPS(object):
+class GPS(settings.Singleton):
     def __init__(self, gps_cfg):
         global gps_data_retrieve_queue
         self.uart_obj = UART(
@@ -140,7 +140,7 @@ def loc_worker(argv):
                 self.read_cb(data)
 
 
-class Location(object):
+class Location(settings.Singleton):
     gps = None
     cellLoc = None
     wifiLoc = None

code/remote.py

@@ -206,7 +206,7 @@ def uplink_process(argv):
             continue
 
 
-class Remote(object):
+class Remote(settings.Singleton):
     _history = '/usr/tracker_data.hist'
 
     def __init__(self):

code/settings.py

@@ -37,6 +37,15 @@ class SettingsError(Exception):
         return repr(self.value)
 
 
+class Singleton(object):
+    _instance = None
+
+    def __new__(cls, *args, **kwargs):
+        if not cls._instance:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+
+
 class default_values_app(object):
     '''
     App default settings
@@ -206,7 +215,7 @@ class default_values_sys(object):
         return cloud_init_params
 
 
-class Settings(object):
+class Settings(Singleton):
 
     def __init__(self):
         self.current_settings = {}
@@ -309,4 +318,5 @@ class Settings(object):
     def reset(self):
         uos.remove(tracker_settings_file)
 
+
 settings = Settings()