Ryfutone Co., LTD |
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DESCRIPTION
The Hitachi VK-S454EN is a RoHS-Compliant compact chassis-type
camera designed for surveillance of various sites under a wide
range of light conditions. Even high-contrast scenes can be
captured without glare or loss of detail thanks to the Wide Dynamic
Range design. The Digital Slow Shutter and Removable IR Cut Filter
function make the camera particularly suitable for monitoring sites
at nighttime or dark locations. Hitachi's Wide Dynamic Range
Technology uses two shutter speeds in alternative video fields
–high and normal –every 60th (or 50th) of a second and combines two
fields into one progressive scan frame. It allows every detail to
be captured accurately even if one portion of an image is very
bright while other portions are dark. Whether at the high shutter
speed or normal shutter speed, the progressive scan CCD provides a
horizontal resolution of 470 lines. As a result, combined fields
yield a frame of high-quality images. Ordinary color cameras
feature a fixed IR cut filter for clear color images in daylight
conditions.
The VK-S454EN, however, is equipped with a removable IR cut filter. Under very low light conditions, the IR cut filter is automatically turned off to deliver brighter images than other color video cameras do. The Digital Slow Shutter allows the camera a long exposure time of 1/2 (1/1.5) second. This translates into a higher sensitivity and minimum illumination of only 0.1 lx (IR cut filter on), 0.02 lx (IR cut filter off) or 0 lx with the IR illuminator. When the camera scans more than a certain amount of degrees while tracking a moving object, it digitally flips the object's image upside-down on the monitor. This means you can track an object moving underneath the camera in a continuous shot. The camera may operate by its own internal sync or under control of an external source like a sync generator. Internal/external sync capability expands the range of the camera's applications. With these new RoHS-Compliant models, make your organization environmentally conscious.
The VK-S454EN cameras enable you to not only monitor your environment but also help preserve it. When there are windows, entrances and other objects within the camera's vision that are not subject to surveillance, they can be masked on the monitor for protection of privacy. This makes the VK S454EN particularly suitable for outdoor surveillance. A reliable built-in x23 optical zoom lens allows the user to monitor a scene from any angle. Combined with x12 digital zoom, the total zoom ratio is x276. A.I. auto iris keeps video output constant, compensating for variations in illumination. A.I. auto white balance allows natural color reproduction under any ambient lighting. For the ultimate in remote monitoring the VKS454EN comes with full motion detect functionality. Save time when this camera shoots what you need –when you need it.
APPLICATION USE
* Surveillance: In corporate, medical, learning institutes and
other public places, security camera solutions offer a peace of
mind.
* Telepresence: Conference type solutions in business or learning
institutions.
* Low Vision Magnifier: Video technology for sight impaired
individuals.
The Hitachi VK-S454EN is a RoHS-compliant compact chassis-type camera equipped with a newly developed digital signal processor engineered to capture high-quality images under awide range of conditions, including high-contrast scenes or low light situations. In addition to conventional analog output, the VK-S454EN also features digital output for lossless capture of high-quality images. Compatible with the latest IP protocols, the VK S454EN ensures efficient, high-quality imaging in the rapidly evolving surveillance field.
Frame Noise Reduction (Diagram)
The VKS454EN features a highly sensitive progressive scan 1/4" CCD*
and a newly developed DSP that produces horizontal resolution of
540TVL in illumination as low as 1.0 lx. Faithful color
reproduction combines with a Frame Noise Reduction (FNR) function
to ensure accurate, clear images with minimum random noise, even in
challenging low light conditions.
* Total pixels: 410k (NTSC)/470k(PAL); effective pixels;
380k(NTSC)/440k(PAL).
Wide Dynamic Range (WDR) (Diagram)
When a surveillance area includes bright and dark areas, alternate
images are captured at optimum exposure for both levels of
illumination, with the resulting two fields combined into a single
frame. This makes it possible to capture clear, glare-free images
in a variety of scenarios, such as building entrances with varying
levels of indoor/outdoor illumination and situations where
backlighting can make it difficult to identify facial features. The
newly developed DSP also offers enhanced ability to capture details
in dark areas.
Built-in Optical Power Zoom Lens
A reliable built-in 23x optical zoom lens combines with a 12x
digital zoom to deliver a maximum factor of 276x.
FEATURES:
* PAL: VK-S454EN ( NTSC :VK-S454N )
* Wide Dynamic Range (WDR)
* Removable IR Cut Filter
* Digital Slow Shutter (D.S.S.)
* Digital Image Flip
* Internal/External Sync
* Environmentally Friendly
* Privacy Zone Masking Function
* Built-In Optical Power Zoom Lens
* D.S.P. for Intelligent Control
* Motion Detect Function
* Hitachi DSP 8 camera control
* 23X Optical Zoom F1.6 Lens and practical f value 3.6-82.8mm
* IR cut filter removed for Day/Night capability
* 1.0 lux typical sensitivity, 50 IRE, 0.01 lux IR Cut Filter Off
* Composite Video Output, YUV422 8 bit digital output
* 1/4" Progressive Scan Ex-View Color CCD, NTSC/PAL output
* 540 TV Lines of Resolution
* Motion Detection, Frame Noise Reduction, Wide Dynamic Range
SPECIFICATIONS
Image Size | 4.5mm Dia. (1/4-inch) |
Total Pixels | 470k (795 x 596) |
Effective Pixels | 440k (752x582) |
Progressive Scan | Yes |
Lens | Optical |
Zoom Magnification | 23x (f=3.6 – 82.8mm) |
Practical f-value | f=3.6 – 82.8mm |
Practical Horiz. Angle | 54°(w) – 2.5°(t) |
F-value | F1.6(w)* - F3.7(t) |
Zoom Speed (Manual) | 4.2s*/5.8s (soft); (In Preset: Trace / No-): 2.9s/1.5s (soft) |
Auto | VAF |
Manual (Fan/Near) | Provided (soft) |
Focal Range | infinity – 1m(t) – 0.01m(w)* (soft) |
Auto | Pro. AER * (OFF – ON – 1/3* -1/4k) |
Manual (ON/OFF) | Provided (soft) |
Zoom/Focus/Iris | 500k cycles |
IR Removable | 50k cycles |
DSP-Serial Interface-Functions | DSP-8 |
Method | Speed: RS-232C : 57.6k / 38.4k / 19.2k / 9.6k / 4.8k* bps |
Digital Slow Shutter | Yes (SDRAM I/F) w/o WDR |
Frame Output | OFF * / ON (soft) |
Wide Dynamic Range | OFF* / ON (Auto* [offset] /Manual) (soft) |
Image Reverse | OFF* / ON (soft) |
Mirror | OFF* / ON (soft) |
Image Freeze | OFF* / ON (soft) |
Vertical Invert | OFF* / ON (soft) |
B&W | OFF* / ON (soft) |
Privacy Masking | OFF* / ON [2 zone 2-D / 8 zone 3-D (4/1 screen)] (soft) |
Motion Detect | OFF* / ON (soft) |
FNR (Frame Noise Reduction) | OFF* / ON (soft) |
Various Customizable Settings | Yes [Preset store (max. 111), WB tuning] |
Dynamic Spot Cancel | Auto |
Zoom Mag. | OFF* / ON (12x* [soft: max. 12x]) |
Auto | Pro. AE (1/50 – 1/4ks) |
Auto ( DS Shutter) | Pro. AE (1/1.5 – 1/3* - 1/4ks : Seamless) |
Manual | Shutter priority 1/1.5 – 1/30ks: soft; Exposure priority F1.6 – F34: soft; AGC priority 0 – 30dB: soft |
Manual (Sensitivity) | 32x, 16x, 8x, 4x, 2x (soft) |
Iris | Auto*/(offset: soft) w/o WDR |
White Balance | Auto*/(manu: soft) |
Normal | Typ.540 Min. 520 / (400) TVL (1/50s) |
Luminance S/N Ratio | 50 dB or more |
IR-cut ON | 1.0 lx (1/50s); 0.1 lx (1/3s); 0.05 lx (1/1.5s) |
IR-cut OFF | Approx: 0.01 lx (B/W) (1/3s) |
Condition | (F1.6(w), 50IRE) |
Sync System | Internal / Line-Lock (50Hz) |
Supplied Voltage | 9-12V DC |
Supplied Current | 220mA w/ WDR |
Max. | 470mA w/ WDR |
Consumption | 2.0 W (4.3W) w/ WDR |
Video Output(NTSC/PAL) | VBS:1.0Vp-p |
Video Output(digital output) | YUV422 8bit output (REC656 type) |
Dimension (W x H x D) | 50 x 60 x 89.5mm (w/ M-case) |
Weight | 225g (w/ M-case) |
No. of Connectors | 2 (9 pin, 24pin) |
Operating Temp.(Recommended) | [°C]: 0 – 60°C (0 – 40°C) |
Others | Color is not same as VK-S454R/ER due to difference of sensor and DSP. |