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IRI 5300 Series User Manual
Overview Ltd.
55 Bendon Valley, London, SW18 4LZ
+44 (0)208 875 0984
info@overview.co.uk
www.overview.co.uk
This product may be protected by patents RE36136, RE36706, US4752694, US5300915, US5420419, US5895233.
©Overview Ltd 2015 No part of this publication may be reproduced without prior permission in writing from Overview Ltd. Whilst Irisys will endeavor to ensure that
any data contained in this product information is correct, Overview Ltd. do not warrant its accuracy or accept liability for any reliance on it. Overview Ltd. reserve
the right to change the specification of the products and descriptions in this publication without notice. Prior to ordering products please check with Overview Ltd.
for current specification details. All brands and product names are acknowledged and may be trademarks or registered trademarks of their respective holders.
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Summary of Contents for Overview IRI 5331-02
- Page 1 ©Overview Ltd 2015 No part of this publication may be reproduced without prior permission in writing from Overview Ltd. Whilst Irisys will endeavor to ensure that any data contained in this product information is correct, Overview Ltd. do not warrant its accuracy or accept liability for any reliance on it. Overview Ltd. reserve the right to change the specification of the products and descriptions in this publication without notice.
- Page 2 __________________________________________________________________________________ __________________________________________________________________________ IPU 40285 Version E Jan 2013...
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Page 3: Table Of Contents
__________________________________________________________________________________ Contents Page 1. Introduction................. 4 2. Contents and options..............4 3. Physical Dimensions..............5 4. Electrical Connections ..............7 5. Initial use and Set-Up ..............7 6. Settings ..................9 7. Advanced settings ..............12 Appendix 1 – Serial Protocol ............14 __________________________________________________________________________ IPU 40285 Version E Jan 2013... -
Page 4: Introduction
Lens FOV / Case Video Output Type - Diameter and Scan rate IRI 5331-01 35° X 26° / 15mm Standard <9Hz IRI 5331-02 35° X 26° / 15mm Standard NTSC - <9Hz IRI 5339-01 35° X 26° / 15mm Standard 25Hz IRI 5339-02 35°... -
Page 5: Physical Dimensions
__________________________________________________________________________________ 3. Physical Dimensions. Figure 3 . Standard case dimensions Figure 4 . Dimensions of standard case with 15mm Lens. __________________________________________________________________________ IPU 40285 Version E Jan 2013... - Page 6 __________________________________________________________________________________ Figure 5 IWI 5520 15mm Window Figure 6 IWI 5521 45mm Window Both the 15mm and 45mm windows have an uncoated area on the inside. (Labeled side 2 in Figure 6 Figure 5 and ). The other difference between the inside and the outside is that the outside of the window is dark in appearance;...
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Page 7: Electrical Connections
__________________________________________________________________________________ 4. Electrical Connections 4.1. The electrical connector is a Sauro CIM 7 way straight polarised male connector. The part number for this connector is CIM070P5. Pin connections for the CIM070P5 Pin Number Label Description Power supply Power supply RX RS232 Receive line for serial RS232 TX RS232 Transmit line for serial RS232... - Page 8 __________________________________________________________________________________ Figure 7 Start up Screen Shot 5.3. Communication between Imager and PC 5.3.1. Click on the “load set up from imager” button. 5.3.2. This will load up the imager communication configuration dialogue box. See Figure 8. 5.3.3. Selecting Auto Detect, will check the ports and confirm they can be connected to. Ensure that a port from the available ports box is selected and then click OK.
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Page 9: Settings
__________________________________________________________________________________ 6. Settings Selecting the Basic tab gives the screen as shown in figure 7. Figure 9 Basic Tab Screen shot. 6.1. Power Allows the unit to be turned on and off. 6.2. Freeze image Allows the image to be frozen. 6.3. - Page 10 __________________________________________________________________________________ 6.6.1.1. Linear(Mean) In the Linear Mean mode the gain and offset are defined by the mean value of all the temperatures in the selected region.(see section 7) Therefore when a hot or cold object enters the scene there is little change in the brightness and contrast of the image. (Figure 10 &...
- Page 11 __________________________________________________________________________________ Figure 14. Small object in Scene. Figure 15. Large hot object in Scene. 6.6.2. Manual Mode The user defines the gain and the offset. This is primarily used on a temporary basis to look at a specific event in order to get more details from the scene. It should not be used continuously, because when other objects appear in the scene the image will no longer have the optimal gain and offset settings.
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Page 12: Advanced Settings
__________________________________________________________________________________ 7. Advanced settings Selecting the advanced tab gives the screenshot as shown in Figure 22. Figure 22 Advanced tab Screenshot. Display Mode Settings. 7.1. Linear(Median) and (Mean) The user can define a smaller region of the scene over which the auto gain settings are used. - Page 13 __________________________________________________________________________________ Offset: The output from the detector is converted into a 16 bit number. The full range of the output is very approximately equivalent to +250°C to -50°C. Note: The unit is not calibrated. Minimum offset: -32768. Equivalent to the lowest temperature. Maximum offset : 32767 Equivalent to the highest temperature.
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Page 14: Appendix 1 - Serial Protocol
__________________________________________________________________________________ Appendix 1 – Serial Protocol IRI5300 SERIAL COMMANDS V15c – FPGA V10 pic ver 05 Settings to be used for the serial communication Default Baud 9600 Parity None Data bits Stop bits Hardware flow control None Note 1. The baud rate can be set to other values. See commands below. Data and command formats All commands sent to the camera will start with a left chevron - ‘>’... - Page 15 __________________________________________________________________________________ Basic Operation: >0r Pause image >0R Resume image >0cx Select colour palette where x = 0 to 5 0 = white hot, 1 = black hot, 2 = ironbow 3 = inverse ironbow, 4 = red-black, ‘5 = black-red >0ZLxxxyyy Zoom mode where L = zoom level 0 to 2, 0=X1, 1=X2 2=X4...
- Page 16 __________________________________________________________________________________ Contrast Schemes Infrared detectors produce an analogue voltage for each pixel intensity, which is converted by means of an analogue to digital converter to a digital number. For the best possible image, the digital number must have enough bits of precision to represent the smallest temperature change that the detector can see (often 14 or 16).
- Page 17 __________________________________________________________________________________ The offset required in this case is (max + min)/2, which is an approximation to the median, (the real median is computationally intensive to calculate) so we call this the median contrast scheme. The median contrast scheme is strongly affected by targets appearing at either the hot or cold end of the detector’s output range as shown in the following histogram which has two components separated (bimodal histogram).
- Page 18 __________________________________________________________________________________ It is common to find that the image background retains its contrast (which could be an advantage over the median scheme), and small hot targets appear completely white, which makes them easy to detect. The hotter and smaller they are, the more likely they are to be completely white, with little colour contrast across the target, for example on people’s faces.
- Page 19 __________________________________________________________________________________ The result is that much more detail is visible in areas that were previously represented by comparatively few grey levels. Plateau Histogram Equalisation Histogram Equalisation can be a little severe in cases where the main body of the histogram is very narrow and tall since details in the other parts of the histogram can be lost.
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