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update api doc

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This commit is contained in:
Junzi Sun
2019-04-03 09:40:27 +02:00
parent 72fe72c16c
commit 652ef65bbb
65 changed files with 755 additions and 710 deletions
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pyModeS/extra/tcpclient.py
+55 -46
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@@ -145,51 +145,60 @@ class BaseClient(Thread):
return messages
def read_skysense_buffer(self):
"""
----------------------------------------------------------------------------------
Field SS MS MS MS MS MS MS MS MS MS MS MS MS MS MS TS TS TS TS TS TS RS RS RS
----------------------------------------------------------------------------------
Position: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
----------------------------------------------------------------------------------
SS field - Start character
Position 0:
1 byte = 8 bits
Start character '$'
MS field - Payload
Postion 1 through 14:
14 bytes = 112 bits
Mode-S payload
In case of DF types that only carry 7 bytes of information position 8 through 14 are set to 0x00.
TS field - Time stamp
Position 15 through 20:
6 bytes = 48 bits
Time stamp with fields as:
Lock Status - Status of internal time keeping mechanism
Equal to 1 if operating normally
Bit 47 - 1 bit
Time of day in UTC seconds, between 0 and 86399
Bits 46 through 30 - 17 bits
Nanoseconds into current second, between 0 and 999999999
Bits 29 through 0 - 30 bits
RS field - Signal Level
Position 21 through 23:
3 bytes = 24 bits
RSSI (received signal strength indication) and relative noise level with fields
RNL, Q12.4 unsigned fixed point binary with 4 fractional bits and 8 integer bits.
This is and indication of the noise level of the message. Roughly 40 counts per 10dBm.
Bits 23 through 12 - 12 bits
RSSI, Q12.4 unsigned fixed point binary with 4 fractional bits and 8 integer bits.
This is an indication of the signal level of the received message in ADC counts. Roughly 40 counts per 10dBm.
Bits 11 through 0 - 12 bits
"""Skysense stream format.
::
----------------------------------------------------------------------------------
Field SS MS MS MS MS MS MS MS MS MS MS MS MS MS MS TS TS TS TS TS TS RS RS RS
----------------------------------------------------------------------------------
Position: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
----------------------------------------------------------------------------------
SS field - Start character
Position 0:
1 byte = 8 bits
Start character '$'
MS field - Payload
Postion 1 through 14:
14 bytes = 112 bits
Mode-S payload
In case of DF types that only carry 7 bytes of information
position 8 through 14 are set to 0x00.
TS field - Time stamp
Position 15 through 20:
6 bytes = 48 bits
Time stamp with fields as:
Lock Status - Status of internal time keeping mechanism
Equal to 1 if operating normally
Bit 47 - 1 bit
Time of day in UTC seconds, between 0 and 86399
Bits 46 through 30 - 17 bits
Nanoseconds into current second, between 0 and 999999999
Bits 29 through 0 - 30 bits
RS field - Signal Level
Position 21 through 23:
3 bytes = 24 bits
RSSI (received signal strength indication) and relative
noise level with fields
RNL, Q12.4 unsigned fixed point binary with 4 fractional
bits and 8 integer bits.
This is and indication of the noise level of the message.
Roughly 40 counts per 10dBm.
Bits 23 through 12 - 12 bits
RSSI, Q12.4 unsigned fixed point binary with 4 fractional
bits and 8 integer bits.
This is an indication of the signal level of the received
message in ADC counts. Roughly 40 counts per 10dBm.
Bits 11 through 0 - 12 bits
"""
SS_MSGLENGTH = 24
SS_STARTCHAR = 0x24
@@ -220,7 +229,7 @@ class BaseClient(Thread):
self.buffer = self.buffer[SS_MSGLENGTH:]
messages.append( [msg,ts] )
else:
self.buffer = self.buffer[1:]
self.buffer = self.buffer[1:]
return messages
def handle_messages(self, messages):