Page 66 - ITU-T Focus Group on Aviation Applications of Cloud Computing for Flight Data Monitoring - Avionics and Aviation Communications Systems

ITU-T Focus Group on Aviation Applications of Cloud Computing for Flight Data Monitoring
208
26
117
13
182
130
91
195
78
65
39
104
52
143
169
221
156
0.48
0.21
0.82
0.55
0.27
0.34
1.17
0.96
0.41
0.07
0.69
1.10
0.76
0.62
1.03
0.89
0.14
1,661
1,523
1,246
1,384
1,800
969
1,938
1,107
831
277
415
2,076
2,353
2,215
138
554
692
This analysis illustrates the total global bandwidth and data storage needs for a given quantitiy of aircraft that might be in flight simultaneously
b) 64wps flight data recorder (black box) data which was the standard recording rate for many aircraft in the late 1980s and early 1990s
These bandwidth needs assume continuous transmission and not transmission of an accumulated amount of flight recording.
8.06
11.72
7.32
9.52
2.20
5.13
12.45
4.39
8.79
0.73
6.59
3.66
10.99
1.46
5.86
10.25
2.93
Black Box Data Recording Rate = 1024 ARINC 717 words per second (wps) (New aircraft are increasingly using this data rate)
a) 1024wps flight data recorder (black box) data which is the most common recording rate on new aircraft in 2015
This rate would be 16x less if only 64wps data is sent (768 bps); or 170x less if only lat/long/alt is sent (72 bps).
Transmission rate to send 5.4 MB / Hour continuously without including overhead = 12.3 Kbps
Total Global Data Volume Lat / Long / alt only 64wps Total Global Data Volume Total Global Bandwidth Total Global Data Volume Total Global Bandwidth per Month (GB) for Required (Mbps) for per Month (GB) for 64wps Required (Mbps) for per Month (TB) for 1024wps lat/long/alt only (*) lat/long/alt only d
15
17
11
13
37
26
32
35
30
28
19
24
22
2
6
9
4
1024wps
Total Global Bandwidth Required (Mbps) for 1024wps data frame 0.12 1.2 12 23 35 47 59 70 82 94 105 117 129 141 152 164 176 188 199 211 223 234
Three tables provide three sets of analysis for streaming
c) streaming only aircraft position information
CONTINUOUS DATA STREAMING ANALYSIS
Assumptions for this analysis One ARINC 717 word = 12 bits Data Recorded in One Hour by One Aircraft = 5.4 MB No. of Aircraft in Flight instantaneously 10 100 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000 Notes:
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