Pulnix TS-9720EN Series Manual de Instruções descarregar pdf (Página 47)

TS-9720EN Series Progressive Scan Shutter Cameras

Page 39

Camera Features

When the EN camera is controlled by light sensor, user can monitor the shutter value in ENsetup

software by accessing “Camera Shutter” status register (Address = 233). Note that this Shutter value is

dial number and not actual exposure time. (left side of the table above).

User needs to set appropriate “ADR Shutter Max” and “ADR Shutter Min” config registers (Address

=53 and 58 respectively) to limit exposure time. In daytime, “ADR Shutter Min” limits the shortest

exposure time (or faster shutter speed). In night time, “ADR Shutter Max” limits the longest exposure

time (or slowest shutter speed). The factory default settings of “ADR Shutter Min” and “ADR Shutter

Max” are as follows:

6.3.2 Video Amplifier Gain Control

Normally, video amplifier gain is controlled automatically by an ADR (Automatic Dynamic Range)

control algorithm inside the EN, based on the output from the light sensor. However, the user can

manually change gain value by using the EN setup software (See Section 7.2 on page 47 for more

information). Normally, gain would be manually adjusted only when a different gain (and electronic

shutter setting) is needed to see the vehicle and focusing targets used for setup in whatever road lighting

is available at the installation site.

The following table shows the gain setting vs actual gain (dB):

Note: Gain Value is Gain entry in camera LUT after calibration.

TABLE 6. Factory Default Settings of the ADR Shutter Min. and Max.

Factory Default Settings of ADR Shutter Min. and Max.

BW Color

ADR Shutter Min Dial=1 (1H) Dial=3 (3H)

ADR Shutter Max Dial=6 (8H) Dial=10 (12H)

TABLE 7. Gain Table (BW EN Camera)

Gain Value dB

010

36 12

60 14

83 16

112 18

143 20

176 22

200 24

230 26

255 27.5

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 62 63

Sem comentários

Pulnix TS-9720EN Series Manual de Instruções Página 47