blob: 1d79a319f15e0c54f8fa25fc7a7a18d35dd378d0 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
OBJECT: AVDAS
DESCRIPTION:
This object collects various values from other objects in the system
and outputs the values in a message on a serial interface. The message
can be read and used as diagnostic information.
THEORY OF OPERATION:
This object contains a Server task which periodically collects
diagnostic values from other objects in the system and outputs the
values in a message on a serial interface. The diagnostic values
collected and formatted reflect system status.
NOTES:
The following engineering note consists of a chart to aid in the
decision making process of whether the AVDAS should reflect System
status or Switch status. As it is right now, it was decided to
reflect System status.
@table
System Switch
Gun Manual Weapon_control Gunner_console
Gun Air ------- -------
Gun Ground ------- -------
*Remote Status Remote Remote
*Msl Armed Indicate Missiles Missiles
*Rain Mode FOV FOV
*Msl Uncage Verified Missiles Missiles
*Msl Activate Status Missiles Missiles
*RSO Status Weapon_control Weapon_control
*Fire Permit Weapon_control_(new) Weapon_control_(new)
*Stab Mode Status Drive_(new) Drive_(new)
Uncage Mode Status Weapon_control Gunner_console_(new)
Engage Mode Status Mode Gunner_console_(new)
*Palm Grip Status Gunner_handstation Gunner_handstation
*System Fault Status Fault (Add) Fault_(new)
FLIR FOV Status FOV Gunner_console
*Autotrack Status Video_tracker Video_tracker
Arm Switch Status Weapon_control Gunner_console
*Uncage Switch Status Gunner_handstation Gunner_handstation
*Trig Switch Status Gunner_handstation Gunner_handstation
*Msl Fire Cmd Status Missiles_(new) Missiles_(new)
Helicopter Mode Weapon_control Gunner_console_(new)
IFF Challenge Switch IFF_(new) Gunner_console
*Auto Slew Status Autoslew_Is_on Autoslew_Is_on
@end table
Message bytes 26 through 29 are not set at this time pending
completion of the Super Elevate object.
ATTRIBUTE DESCRIPTIONS: none
ASSOCIATION DESCRIPTIONS: none
ABSTRACT TYPE DESCRIPTIONS: none
DATA ITEM DESCRIPTIONS:
DATA ITEM: Message
DESCRIPTION:
This data item is the buffer used to build an AVDAS data message.
The first two bytes are place-holders for the header bytes. The
last byte is a place-holder for the checksum byte.
DERIVATION: array[ 36 ]
TYPE: bytes
DEFAULT:
all bytes = 0x00
DATA ITEM: The_Channel
DESCRIPTION:
This data item contains the handle to the AVDAS channel.
TYPE: Channel_Control handle
DEFAULT: NULL
METHOD DESCRIPTIONS:
METHOD: Break_Up
DESCRIPTION:
This method converts a floating point number to two ascii bytes
based on an input range and weighting factor.
VISIBILITY: private
INPUTS:
max_range
min_range
value
weight_factor
OUTPUTS:
lower_byte
upper_byte
PDL:
if value between 0 and min_range
set temp2 to min_range
set bit_ratio to absolute value( temp2 / 0x8000 )
else if value between 0 and max_range
set temp2 to max_range
set bit_ratio to absolute value( temp2 / 0x7FF0 )
set temp3 to (value / temp2) * weight_factor
set temp4 to temp3 converted to unsigned 16 bit value
set temp4 to two's compliment of temp4
set lower_byte to lower 8 bits of temp4
set upper_byte to upper 8 bits of temp4
METHOD: Create
DESCRIPTION:
This method performs the necessary actions to create this object.
VISIBILITY: public
INPUTS: none
OUTPUTS: none
PDL:
initialize Message to default
get AVDAS protocol information using the AVDAS_protocol object
create a channel for the AVDAS interface using the Channel object
attach the channel to the AVDAS interface using the Channel object
with the following parameters:
flush - FALSE
major_number - CONFIGURATION_AVDAS_MAJOR
minor_number - CONFIGURATION_AVDAS_MINOR
TASK DESCRIPTIONS:
TASK: Server
DESCRIPTION:
This task periodically collects diagnostic values and outputs the
values in a message on a serial interface.
INPUTS: none
SYNCHRONIZATION: period
TIMING: 100 ms
REQUIREMENTS:
AFS 3.1.4 Provide AVDAS
AFS 3.1.7 Update AVDAS port
PDL:
create a period
wait for completion using the Initialization object
loop forever
wait for period to expire
initialize Message
get absolute azimuth using the Turret object
format absolute azimuth and store in Message[2] and Message[3]
get elevation using the Turret object
format elevation and store in Message[4] and Message[5]
get drive rate using the Drive object
format azimuth rate and store in Message[6] and Message[7]
format elevation rate and store in Message[8] and Message[9]
get drive displacement using the Drive object
format azimuth displacement and store in Message[10] and Message[11]
format elevation displacement and
store in Message[12] and Message[13]
get seeker position error using the Seeker object
format azimuth position error and
store in Message[14] and Message[15]
format elevation position error and
store in Message[16] and Message[17]
get range using the Laser object
format range and store in Message[18] and Message[19]
get north reference using the Turret object
format north reference and store in Message[20] and Message[21]
get video tracker position error using the Video_tracker object
format azimuth position error and
store in Message[22] and Message[23]
format elevation position error and
store in Message[24] and Message[25]
?get lead command?
get gun mode switch using the Weapon_control object
format gun mode switch and store in Message[30]
determine if remote is active using the Remote object
format remote active and store in Message[30]
determine if missile is safed using the Missiles object
format missile safed and store in Message[30]
determine if rain mode is active using the FOV object
format rain mode active and store in Message[30]
get missile inventory using the Missiles object
format present indicators and store in Message[31]
format selected indicators and store in Message[32]
determine if missile uncage verified using the Missiles object
format missile uncage verified and store in Message[32]
determine if missile activated using the Missiles object
format missile activated and store in Message[32]
determine if RSO is authorized using the Weapon_control object
format RSO authorized and store in Message[32]
determine if fire permit using the Weapon_control object
format fire permit and store in Message[32]
determine if stab mode using the Drive object
format stab mode and store in Message[33]
determine if uncage mode is WEAPON_CONTROL_MANUAL_UNCAGE using
the Weapon_control object
format uncage mode and store in Message[33]
determine if current mode is MODE_ENGAGE using the Mode object
format current mode and store in Message[33]
determine if palmgrip switch is pressed using the
Gunner_handstation object
format palmgrip switch pressed and store in Message[33]
determine if fault is active using the Fault object
format fault active and store in Message[33]
determine if FOV FLIR zoom is FOV_ZOOM_NARROW using the FOV object
format FOV FLIR zoom and store in Message[33]
determine if video tracker is on using the Video_tracker object
format video tracker on and store in Message[34]
determine if armed using the Weapon_control object
format armed and store in Message[34]
determine if uncage trigger switch pressed using the
Gunner_handstation object
format uncage trigger switch pressed and store in Message[34]
determine if fire trigger switch pressed using the
Gunner_handstation object
format fire trigger switch pressed and store in Message[34]
determine if missiles is firing using the Missiles object
format missiles firing and store in Message[34]
determine if helicopter mode is WEAPON_CONTROL_ON using the
Weapon_control object
format helicopter mode and store in Message[34]
determine if IFF challenge using the IFF object
format IFF challenge and store in Message[34]
determine if autoslew is on using the Autoslew object
format autoslew is on and store in Message[34]
loop until successful
write Message using the Channel object
if unsuccessful
reset the Channel object
ENDOBJECT: AVDAS
|
