CAPÍTULO VII. Evaluación e intervención psicoeducativa en las dislexias
1. Tareas para evaluar el sistema lector de los niños
In our design we choosed an IP CCTV system so we choose these two types of cameras and NVR
SNO-5080RP as shown in the figure 5.5
SNV-7080RP as shown in the figure 5.4
SRN-3250 as show in figure 5.6
Figure 5. 6 SRN-3250 Figure 5. 4 SNO-5080RP
Figure 5. 5 SNV-7080RP
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The SNO-5080RP and SNV-7080RP are high performance HD 1.3 megapixel network cameras capable of displaying multiple resolutions from CIF (320 x 240) through to 16:9 format 720p High Definition and up to full 1.3 megapixel (1280 x 1024). Equipped with 31 IR LEDs, they can provides perfect night time monitoring solution by enabling 30m of viewing length at 0 Lux darkness.
The full compatibility with ONVIF makes it easy to cooperate with other network equipments. In addition, rated to IP66 with integrated sunshield and supplied with a mounting bracket that allows the camera to be installed either wall, surface or ceiling mount to ensure the required field of view can be obtained every time.
The specifications of these cameras are listed in the table 5.1
Table 5. 1 cameras specifications Effective Pixels 2,096(H) X 1,561(V) Scanning System Progressive
Min. Illumination Color : 1 Lux (F1.2, 50IRE), 0.017Lux (Sens-up 60X) B/W : 0 Lux (F1.2, 50IRE, IR LED ON)
S / N Ratio 50dB
Video Out CVBS : 1.0 Vp-p / 75Ω composite, 704x480(N), 704x576(P), for installation
Lens
Focal Length (Zoom Ratio) 3~8.5mm (2.8X) Motorized Varifocal
3~10mm (3.6X) Motorized Varifocal Max. Aperture Ratio F1.2
Angular Field of View H: 100°(Wide)~35.3°(Tele), V: 74.6°(Wide)~26°(Tele) Focus Control Remote control via network (Manual, One-shot AF)
Lens Type DC Auto Iris
Mount Type Board-in type
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Camera Title Off / On (Displayed up to 15 characters) Day & Night Auto (ICR) / Color / B/W
Backlight Compensation Off / BLC / HLC
Wide Dynamic Range Off / On (Full HD WDR)
Contrast Enhancement SSDR (Samsung Super Dynamic Range) (Off / On)
Digital Noise Reduction SSNRIII (2D+3D Noise Filter) (Off / On) Digital Image Stabilization _
Motion Detection Off / On (4 programmable zones) Privacy Masking Off / On (1ea 4 Point Polygonal + 16ea
Rectangular zones) Sens-up (Frame Integration) Off / Auto (2X ~ 60X) Gain Control Off / Low / Medium / High
White Balance ATW / AWC / Manual / Indoor / Outdoor Electronic Shutter Speed Auto / A.FLK / Manual
Digital Zoom _
Flip / Mirror Off / On
Intelligent Video Analytics _
Alarm I/O Input 1ea / Output 1ea (Relay) Remote Control Interface _
RS-485 Protocol _
Digital Zoom _
Flip / Mirror Off / On
Intelligent Video Analytics _
Alarm I/O Input 1ea / Output 1ea (Relay) Remote Control Interface _
RS-485 Protocol _
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Ethernet RJ-45 (10/100BASE-T)
Video Compression Format H.264, MJPEG
Resolution resolutions (When WDR ON, Max. framerate is Max 15 fps.) * MJPEG : 800x600 ~ 320x180 - 30 fps 1280x1024 ~ 1920x1080 - 15 fps
<3M Mode> * H.264 : Max 20fps at all resolutions * MJPEG : 800x600 ~ 320x180 - 20 fps 1280x1024 ~ 1920x1080 - 15 fps 2048x1536 - 10 fps
Smart Codec Yes (Area Based Method, Face Detection Method)
Video Quality Adjustment
H.264 : Compression Level, Target Bitrate Level Control
MJPEG : Quality Level Control
Bitrate Control Method H.264 : CBR or VBR MJPEG : VBR
Streaming Capability Multiple Streaming (Up to 6 Profiles) Audio I/O Mic / Line in, Line out
Audio Compression Format G.711 μ-law Audio Communication 2-Way
HTTP, HTTPS, SSL, DHCP, PPPoE, FTP, SMTP, ICMP,
IGMP, SNMPv1/v2c/v3(MIB-2), ARP, DNS, DDNS
Security HTTPS(SSL) Login Authentication
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Memory Slot SD/SDHC
ONVIF Conformance Yes
Webpage Language
English, French, German, Spanish, Italian, Chinese, Korean, Russian, Japanese, Swedish, Denish, Portuguese, Czech, Polish, Turkish, Rumanian, Serbian, Dutch, Croatian, Hungarian, Greek
Central Management Software NET-i viewer
Environmental Operating Temperature / Humidity -40°C ~ +50°C (-40°F ~ +122°F) / ~ 90% RH Ingress Protection IP66 Grade (Waterproof
Electrical
Input Voltage / Current 12V DC, 24V AC, PoE(IEEE802.3af)
Power Consumption
Max. 9W or 650mA (Heater Off), Max. 13W or 800mA (Heater On)
In general rule, when considering using IP cameras on an existing Network, we have to choose the right Network Video Recorder (NVR).Setting up this recorder is easy; you may use the buttons on the front of the product, or connect to the product remotely via a network.
With proven performance and reliability, the NVR is a self-sufficient video recorder as well as ideal for digital video feed storage for monitoring systems of banks, apartment buildings, and public offices that require a high security level. Since video is stored on hard disk, there is no loss in picture quality due to repeated playback from the storage media. Further, since all video data is stored as digital files, it is easily and quickly searchable. This high-resolution video recorder features a large storage capacity and also comes with a wide variety of user-friendly features such as: Simultaneous recording and playback capabilities, motion detection, PTZ (pan, tilt, zoom) control, password, real-time voice data recording,
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convenient access permissions setup using Key Lock, and maintenance of up to 10,000 event lists and log files.
The NVR is similar functionally to a DVR, however. The NVR accepts IP camera. NVRs can also be software based, meaning that they can only accept IP camera streams over the internet.
In our case we need 24 cameras so we choosed the SRN-3250 NVR which has 32 channel input and has a high performance and support a full HD resolution recording and has 64Mbps recording bit rate and has a monitor output HDMI and VGA and support a 20TB HDD.
The features of this NVR is listed in the table 5.2
Table 5. 2 the NVR specifications DISPLAY
Video IP Camera Inputs SRN-3250/SNR-3200
Web Support
Live 1, 4, 9, 16, 32 channels
simultaneously
Search 1 channel
Control Pan / Tilt / Zoom / Focus for available camera
Configuration IP, Port, ID, Password, Picture type, Video Quality, Resolution, Framerate
PERFORMANCE
Recording
Compression (IP) H.264,MPEG-4,M-JPEG , supported by the connected camera
Bandwidth Up to 36Mbps (Up to 8Mbps each camera)
Record Rate / MEGA Up to 60fps@2048x1536 Up to 120fps@1280x1024
* Mode Manual, Schedule (Normal / Event) Overwrite Modes Continuous
Pre-alarm Up to 5sec
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Recording Post-alarm Up to 60sec
Search &
Playback
Search Mode Time, Event, Calendar
Playback Function REW, FWD (Depends on CMS)
Network
Bandwidth Control Automatic (Automatic Transmission Control) Remote Users Maximum 5 Users simultaneously
Protocol Support
TCP/IP, DHCP, DNS, DDNS, HTTP, ARP, ICMP, NTP, RTP/RTCP, RTSP
Monitoring CMS Software Net-I Viewer, Built-in web server
Storage
Maximum Capacity Up to 20TB using external storage option
RAID Normal, RAID1
Internal HDD Up to 4 SATA HDDs
External HDD Up to 4 expansion bays (up to 4 HDD each) Security Password Protection 2 User Level
INTERFACE
Monitor DOT Matrix LCD 20 x 2 status display
Alarm
Inputs Screw terminal 2 inputs, NO/NC
Outputs Screw terminal 2 relay outputs, NO/NC Remote Notification Notification via e-mail
Connections
Ethernet 3 (RJ-45 100/1000 Base-T), 1 (RJ-45 100Base-T) Serial Interface RS-232C
USB 2 USB 2.0 ports (firmware upgrade)
eSATA 4 External SATA ports
Supported IP Cameras Power Consumption Max. 110W (with 1xHDD)
Max.130W (with 4xHDD) Environmental Operating Temperature +5°C ~ +40°C (+41°F ~ +104°F)
Humidity 0%RH ~ 60%RH
Certification FCC (Class A), cUL/UL listed, CE (Class A)
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