Wuhan Guide IR136 User manual

IR136 Thermal Camera
User Manual
Wuhan Guide Infrared Technology Co., Ltd.
No. 26 Shucheng Rd, Hongshan Dist, Wuhan 430070 P. R. China
Telephone: [phone]
Facsimile: [phone]
Email: [e-mail]
Internet: www.guide-infared.com
© Wuhan Guide Infrared Technology Co., Ltd., 2004
Publication No: IR136 UM 006
1

Contents
Precautions……………………………………………………………………………………………3
Introduction……………………………………………………………………………………………5
Features………………………………………………………………………………………………..7
Annotation ……………………………………………………………………………………………9
Controlling keyboard ………………………………………………………………………………11
Procedures……………………………………………………………………………………………14
Basic functions ……………………………………………………………………………………..15
Advanced functions………………………………………………………………………………...19
Quick trouble shooting…………………………………………………………………………….20
2

Precautions
All User Manuals and leaflets should be read thoroughly before proceeding with operation of the
equipment
It is also advisable that all User Manuals and Instruction Leaflets supplied are kept readily available,
for reference when the equipment is in general use
The following precautions must be adhered to at all times and must be considered in addition to any
advised precautions issued at the relevant worksite or work area
•Do not supply power to IR136 Thermal Camera beyond the followed requirement:
DC +24V（±1V）
AC 110V-240V, 50-60 Hz, power rate≥50W
•You will use PC, monitor, power and etc with IR136 Thermal Camera, so it is highly
recommended to connect all the electric systems with ground
•It is highly recommended to use IR136 Thermal Camera statically although it is static
protected. By this, to avoid any damage to the precise electronics inside the camera
•Do not frequently power on/off the camera. Time between on and off should be not less
than 30 sec.
•Do not pull in/out power cord, video cable, control cable etc. when the camera is on; And
highly recommended to cut off power of all the connected electric systems like monitor
when pulling in/out all the cables.
•Do not direct the IR136 Thermal Camera at very high intensity radiation sources such as the
sun, carbon dioxide lasers or arc welders etc
•Do follow the environmental conditions as follows:
Storage Temp: -45℃～65℃
Work Temp: -40℃～55℃
Vibration: 5-500 Hz, 12.7mm peak
Shock: 20G, 11ms
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The IR136 Thermal Camera does not incorporate any user serviceable parts. Never attempt
to disassemble or modify the camera. Opening the unit invalidates the warranty
•Do not loose the bolts on the bottom of the camera, to avoid any effect on the detection and
image.
•Do not use thinner to clean the camera parts, especially the optical part.
•Please power off the camera if you will not use the camera for a while.
4

Introduction
IR136 Thermal Camera is a long range camera used for anti-aircraft and surveillance
application. Based on general IR technology, and integrated Guide unique research, IR136 is a
thermal Camera is with several optimized solutions.
Interfaces
IR module
IR object lens
Programmed lens cover
IR lens
Fig 2-1 IR136 Thermal Camera
Interfaces
Power button
Air tap
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Fig 2-2 Interfaces at back of camera
Note: The air tap is used for air loading and sealing, not user-access part
RS-232 communication / Video，The definition for 9-core is listed as follows:
No Definition Description
A TXD RS-232 sending-end
B RXD RS-232 Receiving-end
C GND RS-232 ground
D +8V External power for LCD
E GND Power-ground
F GND Video-ground
G VIDEO Video signal
RS-422 control / video，The definition for 7-core is listed as follows:
No Definition Description
A A RS-422 data receiving in-phase end
B B RS-422 data receiving out-phase end
C NC Null
D VIDEO Video signal
E GND Video-ground
F +8V Power supply for external keyboard
G GND Power-ground
Power, The definition for 5-core is listed as follows:
Internal debug
No. Definition Description
B +24V Positive power
E GND Negative power
6

Features
Fig 3-1 IR136 Features
No. Technical
Specifications Description
1
Long detection
range
High detection sensitivity ensured by micro-cooling technology
and multi-level object lens system
2 Switch FOV fast
zBuilt-in double focus IR lens system
zSwitch FOV fast by remote control
zSearch target in wide FOV and accurate sighting in narrow
FOV
3
Auto-adjusted air
& ground
detection mode
(image
enhancement by
removing low
frequency)
zWhen detecting high altitude, low altitude and ground
simultaneously with big temperature difference, in order to
keep high sensitivity, the temperature part will be too white
and low temperature part will be too dark.
zTarget in high temperature area of low altitude and low
temperature area of high altitude can’t be detected. It is really
dangerous.
zAuto-adjusted sky & ground detection mode enables soldiers
see any object within any temperature area under any of
above described conditions simultaneously. This mode is
extremely important for specialized anti-aircraft infrared
thermal
4 Auto calibration
zCorrection and calibration of the camera can be done by
built-in programmed shutter.
zNo extra manual work needed for calibration, such as covering
the lens cover or finding clean and cloud-free sky
7

5
Nonlinear
correction, no
“ghost”
Nonlinear correction clears up “Ghost”, which is important for
getting high-quality image.
6 Remote control
Remote control IR136 through control keyboard with RS422 port:
zAdjust brightness and contrast
zImage enhancement (air-ground detection mode)
zAdjust focus remotely by programmed motor
zSwitch FOV remotely by programmed motor
zField calibration: if bad pixel is found or image isn’t uniform,
field calibration can be performed remotely
zSave or restore calibrated data
zOpen or close lens cover
7
Remote control
lens cover
Control lens cover open or close remotely to avoid damage from
rain, sand, dust and etc.
8
Hermetically
sealed housing
with military
standard
zHermetically sealed & military standard housing with gas-filled
in chamber.
zWithout any rotary or movable parts in camera
8

Annotation
1. NUC (non-uniformity correction)
Because of special technic, a thermal camera without NUC will get the 4-1a image when
shooting at a target with uniform temperature. The spots in the image are called “bad
pixels”, and the shade (with uneven brightness) is generally called “ghost”. Both of them
will affect detection especially when detecting a long range target. After NUC, when
shooting at a target with temperature, the camera will get the 4-1b image. Thus, it is avoid
that the camera will get a false target.
Fig 4-1a before NUC Fig 4-1b after NUC
NUC is fulfilled for camera before delivering to customer. However, different temperature,
different electrical environment and different target will ask for different condition of thermal
camera, so we supply the most effective and efficient correction method, enabling you to
adjust the camera in work site
2. Bad Pixels
In 4-1a, the spots are bad pixels，they are caused by ultra-high or low response rate between
pixel and IR radiation. Their values are relative. It means that the response value from bad
pixel is higher or lower than the normal pixels around them which will affect detection. So,
general bad pixels have their response. Only part of them is “real” bad pixels because they
have no response at all, they are called dead pixels. Bad pixel is a spot in infrared image
whose coordinates doesn’t change along with target varies. When you do bad pixels
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correction, you can change the relative value. We will call the value “bad pixels threshold”.
3. Calibration
Calibration is an operation to obtain the original data for NUC. For camera, calibration is
actually an algorithm after taking a uniform target image. In work site, the uniform target can
be clear sky, the built-in shutter, or the closed lens cover; for you, calibration is pressing
some buttons in the keyboard!
4. Background
When you calibrate, a uniform image you get is called background. It is the original data needed
for auto calculating calibration coefficient K. Generally, you need to get 2 backgrounds here
called B1, B2. They stand for background with high-temp and low-temp. They are saved inside
of the camera, and come into function when needed.
5、SDRAM & FLASH
B1, B2, K1, and some control coefficients are saved in a FLASH inside of the camera. When
powering on and adjusting the camera, you can get the data from the FLASH to the SDRAM.
(Take PC for example, FLASH is the hard disk, and SDRAM is the EMS memory). When
powering off, data in SDRAM will not be saved.
10

Controlling keyboard
This controlling keyboard realizes all the functions by RS 422. Its smart design, easy operation
supply you a stable control of the IR136 Thermal Camera.
Fig 5-1 controlling keyboard
The above 4×3 keyboard has red and green parts. SHIFT is used for switching between red and
green. When red part is bright, it indicates you can use the red part functions, when green part is
bright, it indicates you can use the green part functions.
You need to press SHIFT for 3 sec to switch between the 2 colors. Green is default. If there is no
new operation after switching to red within 4 seconds, it will go back to green mode
automatically.
There are also 2 LED lights in the keyboard. When powering on, green light indicates the
keyboard works normally. Red light will flash when every effective operation is done on
keyboard.
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B+SB1 C+
C+*SV A F
B-LB1 C-*LD Z N
E+
E-
E0
Srp
P B1
LK
SK *B1
CV B2
ST
SHIFT
Fig 5-2 Keyboard
Fig 5-3 is introduction to the keyboard.
Fig 5-3
Note: The keys that are not listed here don’t work.
Full name Function Description
Key
Bright Increase Bright Increase
B+
Bright Decrease Bright Decrease
B-
Enhance Increase Increase enhancement coefficient
E+
Enhance Decrease Decrease enhancement coefficient
E-
Contrast Increase Contrast Increase
C+
Contrast Decrease Contrast Decrease
C-
E0 Cancel Enhance Return to normal mode without enhancement
Switch between manual mode, auto brightness
mode and auto contrast mode.
Auto Brightness
A
Zoom
Z Electronic zoom and switch FOV
P Polarity Choose polarity
Small Target Switch reticle
ST
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Save B1 Save B1 in SDR
SB1 AM to FLASH
LB1 Load B1 Load B1 in FLASH to SDRAM
SK Save k1
LK
Save K to FLASH
Load K to SDRAM
Press LK and then SK to perform three-point
Load K1 calibration in current FOV without help of
built-in shutter
Calibration With Shutter Calibration With Shutter
*B1
Close/Open lens cover
CV Close/Open lens cover
F (Focus)Far Adjust focus
N (Focus)Near Adjust focus
1-point calibration without help of built-in shutter
in current FOV
Calibration B1
B1
2-point calibration with B1 without help of built-in
Calibration B2
B2 shutter in current FOV
SHIFT Switch between green and red
SHIFT
13

Procedures
This chapter describes procedures of us hermal Camera. For more detailed
s necessary operation when using
2、ble and etc. Four groups of
3、re finished, power on the camera. Self-checking and cooling process will
4、d image displays. Adjust its focus until getting clear
5、pply; dis-connect all the cable
ing the IR136 T
instructions, please refer to followed contents after this chapter.
1、Fix IR136 camera body firmly according to field conditions. It i
IR136 camera for the first time or changing its working place.
Connect power, RS422 / RS232 control cable, video output ca
cables offered along with the camera. The interface is multi-core. Different cores in every
connector to avoid mis-inserting. Aim the attachment plug at the mousing-slug of
corresponding plug base, lightly screw it up clock-wisely; if it seems impossible to plug in,
please check if the cable matches the plug base. Please don't plug in forcedly or damage the
interface. The other end of cables should connect with power, monitor, control keyboard or
PC control interface.
After all connections a
be carried out within following 5~8 minutes. Please be patient to wait in this period. There is only
stand-by image on the screen by then. After cooled process of detector, infrared video output
image will be displayed automatically.
Switch the camera to NFOV after infrare
image of distant target. Then switch over FOV to wide one. The image shall be kept clear
also. If finding bad pixel or shadow displays, you need to do field calibration. The procedures
will be introduced in followed chapter “Quick trouble shooting”.
Close the lens cover after using the camera and cut off power su
connections with IR136 Thermal Camera if possible.
14

Basic functions
Note: When turning off the camera, all the current parameters will be recorded down, including:
brightness, contrast, camera mode, zoo d etc. When turning on next time,
brightness and auto contrast function. Press “A” to switch
betw and auto contrast modes. Adjusting results will be displayed in
e. Real brightness value will be adjusted to
u keep pressing “B+” or “B-“,
hen A=2, contrast will be auto adjusted by system dynamically. When A=0 or A=1, Press “C+”
or “C black &white contrast. Adjusting results will be
m, polarity, reticle an
these parameters will be used.
1. Brightness adjustment
IR136 Thermal Camera also has auto
een manual, auto brightness
bottom parameter bar (refer to fig 7-1)
When A=2, image brightness and contrast will be auto adjusted by system.
When A=1, image brightness is a relative valu
suitable value automatically along with target varies.
Press “B+” or “B-“on control keyboard to brighten or darken the image. Please refer to picture
7-1 “B: 135”. It is the brightness value of current image. If yo
brightness value will increase or decrease correspondingly. When A=0, image brightness will
not vary along with target and outer conditions. It is necessary to adjust the brightness value
manually by pressing “B+” or “B-“to get a suitable value.
It is advisable to set A=1 or A=2 first to observe target. Then, setting A=0 to micro-adjust
brightness value to get best image quality.
2. Contrast adjustment
W
-“on control keyboard to intensify or weaken
displayed in bottom parameter bar. Please refer to picture 7-1 “C: 52”. It is the contrast value of
current image. If you keeps pressing “C+” or “C-“, brightness value will increase or decrease
correspondingly. Concept of brightness and contrast mentioned here is the same as standard
TV image.
15

FOV switchover and electronic zoom in
x and 8x by changing its FOV and carrying out
1x after starting up. Press “Z” , it will be changed to 2x, press “Z”
Z=1，WFOV
Fig. 7-1
Fig 7-1
3.
Image zoom can be switched between 1x, 2x, 4
electronic zoom. FOV switchover and electronic zoom both are used for deflating or magnifying
the image. Nevertheless, 1x and 4x are realized by changing multiplying factor through built-in
two sets of IR optical lenses. 2x and 8x are done by electronic zoom. Fig.7-2 shows images with
different multiplying factors.
Its original multiplying factor is
again to get 4x zoom, and then 8x zoom in. It will change to 1x if pressing “Z’ for the fourth time.
So, it is a circulatory process.
Z=2（WFOV & 2× electronic zoom）
Brightness Contrast Polarity
odeCamera M Zoom
16

Z=4，NFOV Z=8（NFOV & 2× electronic zoom）
Fig 7-2
4. Focus Adjustment
e, manual focus adjustment is necessary after starting up. Generally,
. Polarity
larity mode, higher brightness indicates higher temperature,. In negative polarity mode,
ress “P” to invert. If current mode is positive polarity, press “P” to change into
In order to get clear imag
NFOV is sensitive to focus adjustment. So, switch camera to NFOV firstly. After getting correct
focus, then switch it to WFOV. The image quality should be the same for the same target. Focus
adjustment method: Press “SHIFT” for 3 seconds until red part in keyboard get bright; then
release “SHIFT”; Keep pressing “SHIFT” and then “F” to adjust far focus, keep pressing
“SHIFT” and then “N” to adjust nearfocus. If keeping pressing “SHIFT” & “F” or “SHIFT” & “N”,
IR136 Thermal Camera will adjust far or near focus continuously. Information bar on bottom of
image will display “FAR” or “NEAR” to indicate current focusing operation.
5
In positive po
lower brightness indicates higher temperature,. Fig. 7-3 shows image effect of same target with
different polarities.
Operation method: P
negative polarity.
17

6、Reticle
IR136 offers four types of reticles (refer to fig 7-4). Press “ST” to switch among 6 modes: four types
p=0 white heat p=1 black heat
Fig 7-3
of reticles, canceling reticle and displaying debug information bar, canceling both reticle and
information bar.
18

4 types of reticles
-4
Corrected va FPA
Temperature
lue Running
Original
Time
background data
Fig 7
19

Advanced functions
1．Image enhancement （air & ground detection）
ets with big temperature difference
d to realize this function: E+, E- & E0; E+ and E- are used for adjusting
ormal Mode Enhancement Mod
In normal mode, when detecting different targ
simultaneously, such as relatively high temperature ground and low temperature air, the high
temperature part will be too bright and the low temperature part will be too dark. The image
enhancement mode (air & ground detection mode) can give attention to both high and low
temperature parts.
Three keys will be use
the enhancement coefficient from 1-8, to get the preferable image; E0 is used for returning to
the normal mode.
Program versio
Enha ent coefficientncem n no.
N e
Fig. 8-1
20