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Digital Monochrome 2 Megapixel
Progressive Scan Camera
CV-M2
Operation Manual
Camera: Revision A
Manual: Version 1.0
M2ManualJul22.doc
JPT 22-07-03
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CV-M2 Table of Contents 1. General ........................................................................................................2 2. Standard Composition ......................................................................................2 3. Main Features ................................................................................................2 4. Locations and Functions ...................................................................................3 5. Pin Assig
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CV-M2 1. General The CV-M2 is a digital 2 megapixel camera designed for automated imaging and ITS (Intelligent Traffic Systems) applications, featuring high resolution and high speed within a uniform and compact housing. The high-speed shutter function, asynchronous random trigger mode and partial scan mode allows the camera to capture high quality images of fast moving objects with a high frame rate. Functions like burst trigger, reset continuous trigger mode, analog iris video output,
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CV-M2 4. Locations and Functions 6 7 5 2 1 3 4 8 1. CCD sensor 2. Lens mount (C-mount) 3. Rear panel with SW1 4. Digital output connector (Camera Link) 5. DC in/Trigger in/RS-232C connector 6. BNC connector for monitor video output 7. Gain potentiometer 8. Mounting holes M3. (8x) Fig. 1. Locations - 3 -
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CV-M2 5. Pin Assignment 5.1. 12-pin Multi-connector (DC-IN/Trigger) Type: HR10A-10R-12PB-01 Pin no. Signal Remarks (Hirose) male. 1 GND 2 +12 V DC input (Seen from rear of camera.) 3 GND 4 Iris Video output Analogue video for iris control in continuous mode and RCT mode. *) 5 GND 1 9 6 RXD in RS 232C. Or via Camera Link 2 8 10 By internal switch HR/CL (Refer to 7.2) 7 TXD out 3 11 12 7 8 GND 4 6 5 Or via Camera Link 9 EEN out TI=1. (Or via Camera Link if TI=
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CV-M2 5.4. Input and Output Circuits 5.4.1. Monitor video output On the BNC connector an analogue video signal for set-up is found if OS=2. The signal can be used for focus and field of view adjust. CCIR if MN=1. (50 fps, 17.734 kHz, 290 active lines.) EIA if MN=0. (60 fps, 17.734 kHz, 262 active lines.) It is for single channel normal (TR=0) operation only. Shutter speed <313 LVAL (CCIR). <263 LVAL (EIA). Video is composite 1Vpp from a 75 Ω source. 5.4.2. Iris video output Vi Vid
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CV-M2 5.4.5. Camera Link interface The video output is Camera Link, where the 2 channels with 10 or 8 bit video are placed in a base configuration. The digital output signals follow the Camera Link standardized multiplexed signal output interface. The output driver is NS type DS90CR285, and the receiver is NS type DS90CR286. The data bits from the digital video, FVAL, LVAL, DVAL and EEN are multiplexed into the twisted pairs, which are a part of the Camera Link. Trigger signals and the
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CV-M2 6. Functions and Operations In the following the format shown in “7.5. CV-M2 command list” are used for function commands and parameters. 6.1. Basic functions The M2 camera is a progressive scan camera with 10 or 8 bit video output in single or dual channel Camera Link. On a BNC connector a standard composite video output CCIR or EIA for monitor use is found. The image covers the full format, but the resolution is much lower than the digital video output. An iris video signal
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CV-M2 6.1.3. Restart continuous trigger mode The RCT mode makes it possible to use a lens with video controlled iris for intelligent traffic surveillance applications. TR=2. The camera is running continuously, and the iris is controlled from the iris video output. When a trigger pulse is applied, the scanning is reset and restarted, the previous signal is dumped with a fast dump read out, and the new triggered exposure is started. This fast dump read out has the same effect as “smearless
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CV-M2 6.1.5. Sensor Gate Control This function is for applications where a strobe flash is the only illumination, and where the exact time for the strobe firing is not known. The time window for the strobe firing can be up to several frames. The resulting video read out can also be delayed by this function. It makes the synchronization of the frame grabber more flexible. The Sensor Gate Control signal will inhibit the internal SG signal so the accumulation can continue. The sensor gate
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CV-M2 6.1.6. Digital video out allocation The set-up and the relations between the analog and digital video are shown in fig. 13. Digit Digita all [LSB] [LSB] v viid de eo out o out 1023 1023 White White clip clip lev leve ell 890 890 100% 100% le lev ve ell Anal Analo og g 32 32 B Bllack ack llevel evel vid vide eo o out out 0 0 0 0 2 25 5 700 700 80 800 0[mV] [mV] Fig. 13. Digital video bit allocation 6.1.7. Knee function. The knee functions can compress the signals in th
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CV-M2 6.2. Sensor layout and timing. 6.2.1. CCD sensor layout The CCD sensor layout with respect to pixels and lines as it is used in the timing and video read out is shown below. Bl ank 2 Li nes 2 Optical Black Lines 4 R eser ved Li nes 1 2 3 1216 Ef f ect i ve Pi xel s Li nes 1600( H ) *1200( V) 1198 1199 1200 4 R eser ved Li nes 4 Optical Black Lines 1916 Pi xel s Du m m y & Bl ank 276 16 4 Vi deo 1600 Pi xel s 4 16 Si ngl e O ut put 1092 Pi xel s 1092 Pi xel s Du m m y & Bl ank Du m m
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CV-M2 6.2.3. Horizontal timing single channel OS=0. Normal mode. Full frame. 1ck = 25 nsec 1 LVAL per i od 1916ck 1674ck 242ck LVAL FVAL Rai si ng Edge FVAL Fal l i ng Edge FVAL 52ck 1864ck SU B 190ck 444ck 514ck SG 958ck Exposur e Per i od m i n: 1. 5L( 1916+958ck) EEN 54ck Du m m y+ OB Re se r ve d Reser ved OB Effective Pi xels 16ck 4ck 4ck 16ck Bl ank 34ck 1600ck 276ck 34ck DA T A O UT 242ck 316ck D VAL 6ck CCD O ut 6ck 1600ck 1640ck 276ck Fig. 17. Horizontal timing single chann
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CV-M2 6.2.5. Horizontal timing dual channel OS=1. Normal mode. Full frame. 1ck = 25 nsec 1 LVAL per i od 1092ck 854ck 238ck LVAL FVAL R ai si ng Edge FVAL Fal l i ng Edge FVAL 52ck 1040ck SU B 186ck 32ck 514ck SG 546ck Exposur e Per i od m i n: 1. 5L( 1092+546ck) EEN 54ck Du m m y+ O B Re se r ved Bl ank 34ck 16ck 4ck Ef f ect i ve Pi xel s 800ck 272ck 34ck DA T A O UT 238ck (L ch) DA T A O UT (R ch) 292ck D VAL 6ck CC D O ut 6ck (L ch) CC D O ut (R ch) 800ck 820ck 272ck Fig. 19. Ho
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CV-M2 6.2.7. LVAL synchronous accumulation With LS=0, the accumulation will start synchronously with LVAL. The trigger pulse should be longer than 2 LVAL intervals, and the accumulation will then start at the first LVAL after the trigger leading edge. The exposure start delay will be up to 1 line. (Single channel 47.9 µsec. Dual 27.3 µsec). In EPS mode the exposure stops 0.5 L after the selected shutter time, (in number of LVAL). In PWC mode the exposure stops 0.5 L after the first L
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CV-M2 6.2.8. LVAL a-synchronous accumulation With LS=1, the accumulation will start immediately after the trigger leading edge. The exposure start delay will be 156 clk. pulses after the trigger. It is 3.9 µsec. In EPS mode the exposure stops 0.5 L after the selected shutter time, (in number of LVAL). In PWC mode the exposure stops 0.5 L after the trigger trailing edge. A new trigger must not be applied before the previous frame is read out. (FVAL is low). The minimum trigger interval
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CV-M2 6.2.9. Partial scanning vertical timing Partial scanning has 3 pre-selected vertical centred areas 1/2, 1/4 and 1/8. SC=1 through SC=3. With SC=3, the start and the height of the partial scanned area can be programmed with 1 line interval. The start line can be programmed with PS=1 through 1151. The scanned height can be programmed with PC=50 though 1200. Partial scanning will operate with single or dual channel output. Partial scan is done by a high-speed dump read out of the area
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CV-M2 6.3. Input/Output of Timing Signals 6.3.1. Input of Timing Signals It is not possible to synchronize the camera from an external sync source except by an extern trigger pulse. The camera will always run with its internal X-tal controlled timing. Trigger input through Camera Link. TI=0 Trigger input as TTL on pin #10 on 12 pin Hirose. TI=1 The trigger polarity is active low. TP=0 Trigger input can be changed to active high. TP=1 6.3.2. Output of Timing Signals To syn
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CV-M2 6.4.1. Continuous Operation (Non triggered) Mode settings can be done with RS-232C. Trigger Mode Normal. TR=0. It is for applications where the camera is continuously running without external trigger. The shutter mode can be normal or programmable exposure. (SM=0, SM=1). The shutter will work in all 10 steps up to 1/14,000 second or with the programmable exposure in 1216 steps. In partial scanning, shutter times longer than the actual frame time has no meaning. The exposure will be
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CV-M2 6.4.2. Edge Pre-select Mode In EPS mode, the trigger leading edge will start an exposure at the first LVAL pulse if LS=0, (or immediately if LS=1), and it stops and the resulting image is read out after the pre-selected shutter time. It can be the 10 steps in normal or 1216 steps in programmable. SM=0 or SM=1. This mode will operate with full and partial scanning. An EEN pulse will indicate the active accumulation time, and a FVAL pulse indicates that the resulting video is read
