* *** ***** ***, ****** *** SD ****.
** *** **** *** *****, ** analog, ** ** *****, *** ****** commonplace.
***, ** ****** ** ******** *** max ********** ** ***.
** ****** *** ****** *** ** Dahua's *** *** *** *.* *******, the ******* [**** ** ****** *********] turret/eyeball **** *** *** ******* [**** no ****** *********] ******, ***** **** the ****** [**** ** ****** *********] DVR ** *** *** **** *** generation ****** ** ******* *** **.
*******
*****'* *** ** ****** ******* ********* similar ***** ******* ** ** ************ in *** ***** ** **** *****, low *****, *** *** ******, **** cameras ****** ~**-**% ***** **** ***** IP ************.
************, **** ***** *********** *** **** improved, **** ***** ******* ** ** ~1,500' (~****) ******* ****** ** ** visible ***********.
*** **** ********** ** *** *.* cameras ** *********, ** *** ****** tested ***** *** ******* ** **** 15 *** ** *** ********** (*********), not **** ***** **** ***** ** many *** ** *******. *******, ** most ************ **** ** *** ****** an *****, ********* ************* ********* ***** ** ***.
Outlook **. **
***** ***** *.*'* ******* ***** *******, lower ***** *****, *** ******* ** reuse ******** ****, ** ******** ** analog's ********* ** * ***** ********** to **. **** *********** ** ****** to ** ********** ** **** ******* for ****** *********** ** ******* ** simpler *******.
Not ********* ******** ******** - *** ********
*****'* ******* "*.*" ******* ***** **** advanced ******** ***** ***** *** ********** announced.
- ** ***/*** *******:*********, *** ****** **** *** ******* other ** ****** ************, **** ** TVI ** ***,******** ** ***** "*****-****" *********. ***** **** **** **** ******* should ** ********* *** ******** ** December.
- ** ***** ** *** ****:************,***** ** *** ******** *** ** ********* ***** ******** in *** ****** **** ** ****. Power *** ***** **** ** *** separately **** ******* *********.
**** **** *** ********** *** *******/********* (e.g. *********) ***** **** ** ***** features, *** ********* ***** ******** ******* models *** *** *** ********.
*******
***** ***** *.* ********* ****** ** this ****** ** ****** ** *******:
- ******* *** ** ****** ****: ~$*** USD ********* ****** *****
- ******* *** ** ******: ~$*** ********* street *****
- ****** *-******* *** ***: ~$*** ********* street *****
*** *** ******* *** ****** **** below ***** ** ***********, *** ***-*********-* [link ** ****** *********] *** ***-*********-* [link ** ****** *********], **** ~$***-*** online.
**** ******* ** ***** $**-** ****** than ***** *** ************, **** ** the ***-******* ****** ** ***-*********.
Physical ********
*** ***** *.* ******* *** ******* of ** ****** ******, **** ******** outputs *** *** *** ** ***** and * ***** *****. **********, *** cameras **** *********** *** **** ** their ** ************, **** ****:
************, *** ****** ** ******* ** 4 ******* ** ****** **** ** have ******, **** *** ****** *** CVI/SD ****** *****, */*, **** *** VGA *******, *** *****. *** ***** and **** *** ***** *****.
Long ***** ****** ***********
** ****** **** ********** ***** ******* over ******* ** ******* ***** **** ranging **** ***-*,***', **** *****.
** *** *****, ******* ** ** 500' *** **** ****** ****** ** image *******, **** ***** *** ******* similar ** ******* *******. ** *,***-*,***', smearing *** ************ *** *******, ****** with ***** ****** ** ***** *******. At ****** *******, **** *,***', ************ is ********* *** ******** **** **********, reducing ****** ******* *** **** ***** legibility.
Image ******* **. **
** ****** *** *** *** ******* against ******* *** ** ************ ** see *** **** *********.
**** *** *** *****, ***** ******* is **** *******. *** *** ****** displays ******** **** ***** *** ***********, but ********* ******* *** *******.
WDR ***********
** **** ****** *** *** *** cameras ** **** *** ***** ** see *** **** ********* ******* *** IP ******.
******* *** ****** ********* ** *** open ******** ****, *** ******* ******* about *** ****, **** ***** ******* of *** ******* *** **** *****. However, ** *** ****** **** ** the *****, ******* ** ***** ****** are ******* *** ** *********** *** noise, ***** ****** ******* ** *** Hikvision ****** ****** ********.
Smart *****/********* **********
********* *** ***** *** ***** ******/*** with *** *****'* *** ** **********, HDCVI's ******** **** ******* ****** **** day *** *****. ********* ******** **** also ****** ** *********'* *** ****** dome, ****** ******* ******** **** *****.
**** **** *** ****** ******** *****'****** *.***+ ***** *****, ** ** *** ***** *** IP ******* ******. ********* *** ** models *** ********.***+.
Test **********
*** ********* ******** ******** **** ****:
- ***** ****** ***: *.***.****.* ***** ****-**-**
- ***** ***-********: *.***.****.**.* ***** ****-**-**
- ***** ***-*********-*: *.***.****.**.* ***** ********
- ********* **-*********-*: *.*.* ***** ******
- ********* **-*********-*: *.*.****** ******
Comments (10)
Undisclosed #1
Great test...
Any thoughts on why the IP camera version of h.264+ (daytime) is 6x more efficient than the DVR version? Is it added noise from the cable? Can the parameters be set identically in both?
Just curious, is most of the wire spooled?
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Undisclosed Integrator #2
Interesting to see the length of cable runs improving. I don't see as noticeable of smearing as anticipated at the 1500' length. Would/does RG-6 lessen the smearing and increase the usable distance?
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Jon Dillabaugh
11/11/16 01:33am
Is it the cameras that are limited to 15fps or the DVR?
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Andrew Del Biondo
The Dahua IP camera's day bit rate is 10% of that of the Hikvision. Is there any picture quality compromise with compression artefacts when high levels of scene change occur?
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Robert Shih
01/03/17 01:35pm
Switchabilty is available via UTC controller.
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