Unibrain 980 Bedienerhandbuch PDF herunterladen (Seite 31)

Unibrain Fire-i 52x/620/720/820 Operation Manual Page 25

3.2. Auto Exposure Control

The automatic shutter/gain mode is based on a feedback loop which calculates the average pixel luminance. Then

the average is compared with the exposure reference value, adjusting shutter and gain accordingly. This feature is

similar to “Contrast Control”.

Inquiry Register

Address Name Field Bit Description

Presence_Inq [0] Presence of this feature

Abs_Control_Inq [1] Capability of control with absolute value

- [2] Reserved

One_Push_Inq [3] One push auto mode(Controlled automatically by

camera only once)

ReadOut_Inq [4] Capability of reading the value of this feature

On/Off_Inq [5] Capability of switching this feature On and OFF

Auto_Inq [6] Auto mode (Controlled automatically by camera)

Manual_Inq [7] Manual mode(Controlled by user)

Min_Value [8..19] Minimum value for this feature control

504h AUTO_EXP

OSURE_INQ

Max_Value [20..31] Maximum value for this feature control

Status Control Register

Address Name Field Bit Description

Presence_Inq [0] Presence of this feature

0:N/A 1:Available

Abs_Control [1] Absolute value control

0: Control with value in the Value field

1: Control with value in the Absolute value CSR

If this bit = 1, value in the Value field is ignored.

- [2..4] Reserved

One_Push [5] Write ‘1’ :begin to work (Self cleared after

operation)

Read: Value=’1’ in operation Value=’0’ not in

operation

If A_M_Mode =1, this bit is ignored

ON_OFF [6] Write: ON or OFF this feature,

Read: read a status

0:OFF, 1:ON

If this bit=0, other fields will be read only.

A_M_Mode [7] Write: set the mode,

Read: read a current mode

0: Manual, 1:Auto

- [8..19]

Reserved

804h AUTO_EXP

OSURE

Value [20..31] Value : Write the value in Auto mode, this filed is

ignored.

If “ReadOut” capability is not available, read value

has no meaning

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 63 64

Kommentare zu diesen Handbüchern

Keine Kommentare

Unibrain 980 Bedienerhandbuch Seite 31

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sicherheitskameras Unibrain 980