Closed Circuit Television (eBook)

Closed Circuit Television 4
Copyright page 5
Contents 6
Preface 10
Acknowledgements 12
Chapter 1: The CCTV industry 14
The role of CCTV 15
The CCTV industry 17
Chapter 2: Signal transmission 20
CCTV signals 20
Co-axial cable 22
Ground loops 30
Twisted pair cable 34
Structured cabling 37
Power over Ethernet 42
Ribbon cable 44
Fibre-optic cable 45
Infrared beam 49
Microwave link 50
UHF RF transmission 53
CCTV via the telephone network 53
Connectors 54
Cable test equipment 56
Chapter 3: Light and lighting 60
Light and the human eye 61
Measuring light 63
Light characteristics 65
Artificial lighting 66
Chapter 4: Lenses 72
Lens theory 72
Lens parameters 74
Zoom lenses 90
Electrical connections 92
Lens mounts 96
Filters 97
Lens adjustment 98
Lens finding 100
Chapter 5: Fundamentals of television 103
Producing a raster 103
Picture resolution 106
Synchronization 109
The luminance signal 112
The chrominance signal 114
Television signals 116
Digital video signals 120
Video compression 123
MPEG-2 compression 126
MPEG-4 compression 129
Wavelet compression 133
Common interchange format (CIF) 136
ITU-T recommendations 136
Chapter 6: The CCTV camera 138
Charge coupled device 138
CCD chip operation 139
Electronic iris 146
IR filters 146
Colour imaging 147
Camera operation 150
White balance 154
Back light compensation 155
Colour/mono cameras 155
Camera sensitivity 157
Camera resolution 158
Camera operating voltages 159
Specialized cameras 160
Covert cameras 161
360° cameras 163
Number plate recognition cameras 165
Chapter 7: Video display equipment 169
The cathode ray tube 169
The colour CRT 173
CRT monitors 174
Monitor safety 179
Liquid crystal displays (LCDs) 181
Plasma display panels (PDPs) 185
Projection systems 188
Termination switching 191
Resolution 194
Ergonomics 194
Chapter 8: Video recording equipment 196
Digital video recorders (DVRs) 197
DVR principle 198
Effects of compression 200
Recording capacity 201
RAID disk recording 204
Digital video information extraction 207
VHS recording 209
Time-lapse recording 210
VCR maintenance 212
Video head cleaning 213
Tape management and care 214
Digital video tape 215
Chapter 9: Camera switching and multiplexing 217
Sequential switching 217
Matrix switching 222
The quad splitter 226
Video multiplexers 228
Video motion detection (VMD) 232
Chapter 10: Telemetry control 235
Control data transmission 236
Pan/tilt (P/T) control 238
Receiver unit 240
Dome systems 242
Data communications 243
Chapter 11: CCTV over networks 247
Network topology 247
Network hardware 250
Network communications 254
IPv4 classes 256
Reserved addresses 258
Subnetting 259
Assigning IP addresses 261
Manually assigned IP addresses 263
Address resolution protocol (ARP) 265
Autoconfiguration 268
Domain name service (DNS) 268
Ports 269
Other network protocols 270
IPv6 272
Network diagnostics 273
CCTV over a network 277
Network CCTV example 279
Integrating analogue cameras 281
Summary 283
Chapter 12: Ancillary equipment 284
Camera mountings 284
Towers and columns 289
Pan/tilt units 292
Monitor brackets 298
Power supplies 298
Voltage drop 300
Chapter 13: Commissioning and maintenance 303
Commissioning 303
Measuring resolution 303
System handover 307
Preventative maintenance 309
Corrective maintenance 310
Fault location 311
Oscilloscope default settings 313
Glossary of CCTV terms 316
A 316
B 317
C 318
D 320
E 320
F 321
G 322
H 322
I 323
K 324
L 324
M 325
N 325
O 326
P 326
Q 328
R 328
S 328
T 330
U 331
V 331
W 331
Y 332
Z 332
Index 334
A 334
B 334
C 334
D 334
E 335
F 335
G 335
H 335
I 335
K 336
L 336
M 336
N 336
O 336
P 336
Q 336
R 336
S 337
T 337
U 337
V 337
W 337