***** *** ******** ***** ***** ************** multi-imager ******,*** *****-**** ***** , ******** ********** **, **** ***, and ******** ***********.
** ****** *** ****** *** *****-**** to *** *** ** ********, *********:
*** **** ** ******* ** **** light (~*** ***) *** *** *****/** (~0.01 ***)? ** ** ******** **** *** **** it ***** *** *****? *** ******** ** ****** ***********? *** **** ** ******* ** **** to *********** *****-*******? *** ** ******** ******* ** ****** imager ******? *** **** **** ** ********** ** third ***** ***** (********, *****, *******, Milestone *** ********* + ******/**)? *** **** *** ******** **** ** use?
**** ** *** ****** ** * series ** *** ************** ***** ****** testing. ******* ****** **** *** *** tests ** ******* *****-*** *********'* ***-****** . ****** ** ** **** ** test ********'* ** ***** ****** , ** **** ** * ******** of *** ***** ****** ************** ******.
*******
*** *****-**** ***** *** ***** *** positives:
***** *** *********** : *** ******'* *.*** *********/************* *** camera **** ****** ********* ********** **** all ***** ******: ********, *****, *******, Milestone, *** ** *******. *.*** ****** in *****, *******, *** ** *******.**** ***********/******: ******* **** **** ** ********, **** 0-90° **** (********* ******** ****) *** adjustable ** ***** **** *** ******** mode *************.**** ** ********: ** ******** *** **** ****** *** field ** ****, **** ******** **** illuminated ** *** ***** ** *** image ** ****** ****** (~**-**'). *******, overall ** ***** *** ****, ********* below.
*******, ***** **** ******* ********* ** imaging *** ********* ************:
**** *** ***** ***********: ******** ** ******* ****** ****** ** domes, *** *****-**** ****** ******** ******* and ****** ******, **** ********** **** detail, **** ***** **********.**** ** *****: *** *****-****'* ** ************ *** **** at **** ~**', ***** ** *** 30m/~98' ********* *****, ****** ******** ** shorter ****** *** ****** **** ****** the ***, ********* *****.**** *** **** *** ******: **** *** ***** ****** ** *** Multi-Flex ****** ******** **** *** ***********, with ****** ***** *******/**** ***, ********** much *****. **** ** ******** ** multi ****** ******, ***** ********* ******* four **** *** ****** ** ****.**** ******** ******** ** **** *****: ****** **** ****** ***** ********* ** VMSes ***** **** *** ****** ******* for *** **** ********, *** *****-**** required **** ******** ** *** ***** tested ****** *********, ***** ******** **** one. **** ******* ** * *********** cost ******** **** ***** ***** ***** VMS.
****** **** *** ***** ****: *** *****-**** *** *** *** ******** drawbacks, ** ** ** ****** ******** than ***** ****** ****** (****** **" wide) *** **** * ***** ****, uncommon ** ***** ***** ****** ****** (though **** **** ** *********).****: ** **** ** ******* ** other ******* *****-****** ****** ** ** upcoming ********.
*******
*** ***** *****-**** ***** *** ** estimated ****** ***** ** ~$*,*** ***. This ******* ** ********** ***** **** the **** *****-*** ********* ***-****** **** ***** ******* (**** ~$*,*** ******), though ******** ****** **** *********'* *** model, *** **-**********-**** , ~$*** ******.
Larger **** *********** ***** *******
*** *****-**** ** ****** ** ******** than **** *** **** *****-*** *** Hanwha ***-****** ***** ******* *** ****** than *** **** *****. *** ***** multi ****** **** ******** * **** for *** *** **********, ***** *** others ** ***, ******** ******** ************* ******** ******* ***** .
Physical ********
*** *****-**** ****** **** * ***** interconnected ****** *** *** ****** *** IR. **** *** ****** ** ****** up ** ****, *** ** *********** adjusts ***** **** **, ***** *****.
***** ** ** ******** ** *** other ******** ******** ** *** *****-**** camera:
Similar **** ***** ***** ******* ** ******* ***** (~*** ***)
** ~**'/~** *** *** ***** ********* offers ******* ****** *** ***** ******* to *** *********** ***** ***** ******.
*** **** *** **** ** *** to **** ***** ** ****, **** both ******* ******** ******* ******* ****** and ***** ******* ** ~**'/~** ***.
Poor ****/** ***** ******* (~*.** ***)
** *** **** **** ** ** (~0.02lx), ** ~**'/~** *** *** *****-**** 4x2MP ****** ***** ****** ******* **** the ***** ***** **** *** ** increased *****, ***** *** ***** ******* are **** ******.
** ~**'/~** *** *** *****-**** *** single ****** **** **** **** ***** detection ** *** ******* ***** *** 1080p **** ***** *** * **** of ******* **** ** *** *****.
******* ** ~**' **** ********* ** the ******* ** ******* ** **** cameras, **** **** ***** ** ***** 30m/~98' ********* ** *****.
IR ********
** ************ ** ********** ****** ** the ***** ** *** ***** ** view **** ******, ****** *** ******* is ***** ******** *******, **** ***** details, ***** ** *** ****** ** is ******** ***********.
**** ************ ** **** ********** **** the ******* ***** **** ~**' ** the ****** ********, **** *** ******** overexposed ** ~**-**' ******** *** ******* washed *** ** *-**' *** ******.
Only *** **** *** ******
**** *** ***** ****** ** *** PDBW5831N ** **** ***, **** ****** using "*******" ***. ** ****** *********** of **** *** ******* * ******* door ** ~**** *** **** ** indoor *** ** ~***.
*** **** *** ****** ************ ******* WDR ** **** *****, **** * sharper ***** *** **** ****** ******* against *********.
Sample ******
** ****** *** *****-**** ***** ** indoor *** ******* ****** ** **** potential ************* ***** *** ********* **** lenses *** ********** **.
*****, ** ** ****** ********* ***** the ****** *** *** ** ** cover ***** ** ******** **** ** doorways, ******* *****, **** *****, *** finally ** ****** *** *** ** corridor **** ** ***** *** **** of *** *********. *** ****** *** able ** ***** **** **** ******* noticeable ***** *****.
****, *** ****** *** *** ** to ********** *** **** **** **** its ********** **, **** *** **** at ~*.* ***. *** ** ** specified ** ***** ~**', *** *** notably **** ****** **-**', **** *** subject ****** ********** ** **** ** he ****** *** **** ** ~**' (imager *). ** ****** ***** ** other *******, ** ******** ** *****, with *** ******* **** ***********.
******* *** ****** *** *** ** outside ** ***** *** ***** ****, the ******** ** *** ******* ***, the ******* *****, *** ** ****** was *** ** ******** **** ** cover *** **** ** *** ********.
VMS *********** *** *********
*** ***** *****-**** *** **** ********* by *****, **** ****** *** *.*** streaming *** ************* ******* ******* ***** in ********, *****, *******, *********, *** Network *****. *.*** ******* ****** ******** in *****, *******, *** ** *******, but *** ** ********* ** ********.
*******, ****** **** ***** ****** ***** imager *******, *** *****-**** ******** **** licenses ** *** ***** ****** ****** for ********* ********, ***** ******** **** a ****** ******* *** *** **** channels.
Bandwidth **********
*** *****-****'* *.*** ******** **** **** similar ** *** ****** ****** ******* camera, **** *** *** *****, ******** higher ** **** ******. ***** ************ were ***** **** ***** *.***+ ******* and ******** ****** ** *** ***** (subjects ******* ** ***** *****).
Intrusion ********* ***********
** *** *******, *** ***** *********-**** ignored ****** ******* ** ***** ****** such ** ******** ******, *******, ******* light *******, *** ******* ******* ** the *****. ****** ********** ** ****** walking ******* *** ***** **** ******, adding * ******** *** *** *** triggering ** *****.
Country ** ******
*** *****-**** ** **** ** *****:
Test **********
******* **** ****** ***** ******* ******** with **** *******:
******** *** *** ** "********** *****" with ******** *** ** *-**** *** gain *** ** *-*** (******** ** exposure *** ** *-**** *** **** 50)
*** *** *** ** ** ****** WDR ******* **** ** ************ *** *** ** "*****" ***** *.***/*+ *** ******* ** ******* ****** **** *** ******** using ***** ********.
*** ********* ******** ******** **** ****, the ****** ********* ** *** **** of *******:
***** ***-*********-****: *.***.*******.**.*, ***** **** ****-**-******* *******: *.***.*******.**.*, ***** **** ****-**-**
Comments (4)
Undisclosed End User #1
Not that I would buy Dahua, but an excellent test that shows the value IPVM offers us.
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Undisclosed Manufacturer #2
I like the subtitle labeling "corridor mode" to "quarter mode". Doh! :)
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Jon Dillabaugh
04/17/19 04:25pm
Hard pass.
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Rob Kilpatrick
Update:
Added a section explaining Dahuas Intrusion analytics performance. the Dahua PDBW5831N-B360 ignored common sources of false alarms such as blinking lights, shadows, drastic light changes, and swaying foliage in the scene. Missed detections of people walking through the scene were common, adding a bounding box but not triggering an alarm.
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