Testing Bandwidth Vs. Low Light

Published Jan 16, 2019 20:34 PM

********* ********* ****** *** * ***** concern ** ***** ************. **** ********* bandwidth ** * ****** **/* ******, but *** ***** **** ************ **** day ** *****. *** *** ****? 100% ****? ***%? *,***%?

IPVM Image

** **** *** ** ****** ******* **** *** ************* - ********, ****, *****, ******, *********, Uniview - ** **** *** *** each ***, **** *** *******, *** who *** ***** *** **** *** how **** *********** *** ******** ** the**** ******* *****.

Key ********

***** *** * *** *** ********* from **** ****:

  • ~***% ******* ********:****** ** ******* ******* **** ***** to **, *** **** ********* ** average ** ~***% **** *** ** night. ********* ****** **** * *** of ~**% ** **** ***%.
  • ******* ******* ****** ***** **** *****:*** ***% ******* **** ** **** test ** ******* **% ***** **** the ***% ******* ** *** **** tests.
  • ** ******** ******:*** ******* ****** ** *********** *********** in **** **. ******* ******* *** ********* ** ********** **, now ***** ** *** ******** ** cameras, ***** ** *** **** ******* several ***** ***.
  • *** (*** **** * ***) ***********:** ****** ********* ******, ** ********* using ******* *** **** ****, ** this ****** *** ***** ** **** as *** ** ******** ****** **** complex *****, *** **** ********* ** a ********* ***** ** ***** ****** network ******* *** *******, **** ******* impact ** ***** *******.

**** **** ***** **** ** ********** trends ** *** ****** ****** ***** on ************ ** **********. **** ************ and ********** ****** ******, *** ****** sizes *** ***** ** **** * true *************.

145% ******** *******

****** ***** ** *******, *** ******* (mean) ********* ******** **** *** ** night *** * ***%. **** **** the ****** *** "****" ~**%, **** the ***% ******* ****** ****** *** to ******** ***%+ ********* ** **** cameras.

**** *** *** ******* ******** ** resolution:

IPVM Image

Much ******* ******** **** **** *****

** ******** ** *** ***% ******** seen ** ******* *****, ******* ** our **** **** ******** ***% ****** bandwidth ** *****, **** *** ****** spiking ****** *,***% ******.

IPVM Image

The **********: ********** ** *** **** *********

*** **** ********* ****** ****** ** camera *********** ******* *** ******** **** in **** *** ****** ****** ** 2019 ** *** ********* ** ********** IR ** ****** ***** ****** ******, compared ** **** * ****** ** 2014 **** *** ******* *** ***** rare.

********** ****, ** ** **** ** only ***** ********** ** ****** **** 2014, *********** *** **** **** ******* to **** ********, * ***% ******* increase.

IPVM Image

***** ****** *********** *** ********, **** more ********* ********, ****** *** **** sensitive *******, *** ****** **********, *** addition ** ******** ***** ** ********* surveillance *** *** ***** ******** ****** on ********.

Root ***** ** ********* ******: ******** *****

*** ****** ** ***** ****** ** the ******* ****** *****, *** ****, static, *******, ** **** **** ** generated *********** **** *******.

** ***** **** **:

** ** *******, **** *****, **** its **** ******** (***** *** ***** near **** *****) *** ***** ********* (pinging ******), **** ** ****** ** encode. ******,********* ******* *** ****** / ***** that *** ******* *** **********. ***** undermines **** ** *****.

Recommendation: *** *** **** * ***

*** *** ** ***** ******* ********* spikes *** ** ******* ** ******* *** **** * ***, **** known ** ***(******* *** ****). **** ****** ****** bitrates ** ********* ** ********* ** fit *** *****, *** **** ** to * ********* *****, ** ***** point *** ****** ********* *********** ** begins ** **** ****** ** **** within *** *** (********* *** ****** is *********).

** *** *****, **** **** **** caused************** ********* **** ** ******* ** ~28 ** **, ***** ******* *********** were *******, **** ****** ********* ***** by **** **%

IPVM Image

Constant *** **** *** ***********

******** *** **** *** **** ** used ** ******* ******, ***** ** locks *** ***** ** *** ********* level ********** ** ******** ** *** scene. *******, ****** *** ***, **** scenes *** **** *******, *** *** waste *********/******* ** *** ****** ***** more *********** ****** *** ***** **** set ** ***. ******* ** ****, CBR ** *** *********** ****** ** the **** ****** ***** **** *** support ***.

Digital ***** ********* ******

******* ****** ********* ***** ** **** to ****** ****** *** ** ********* noise ** ******* ***** ********* (***), which ******** ** ******* ***** ****** by ********* ** ****. ***** *** two *** *******, ******* (***** ********** in * ****** *****) *** ******** (noise ********* ** *********** ******** ******), which *** ********* ******** ** ******. Using ***, ****** *** ** *********** cut, **** **-**% ********** ** *** rate ******** *** *****.

*******, *** *** **** ********* ******** effects, ** ****, **** **** ****** of ******** ***** ********* ******* **** in ***** (***** *****), ********* ******* to *** ******* ** **** *******. Because ** ****, ***** ****** ** careful ** *** ******** *** ** extreme ******.

*** **** ******* *** *******, *** our****** *** (******* ***** *********) ******** ****.

Test *******

** ****** ** ******* **** *** manufacturers *** (~*** ***) *** ***** (~0.1 ***) ******** ****** ******. *** cameras *********** ****** **************** ***-** ****** ******* ***** ****** on. ***** ****** **** ******* ** their ******* ******.

[****: **** **** *** ********** ******** in ****. ** ********** ***** *** test ** **** *** *********** *** report **** *** *** ******* *** contrasting *** *** ****.]

Comments (8)
U
Undisclosed #1
Jan 16, 2019

*** ******* ** *** "***" *** "Night" ******* *** ****, *******?

(1)
Avatar
Ethan Ace
Jan 16, 2019
IPVM

******.

JG
Jeff Gack
Jan 17, 2019
IPVMU Certified

* **** ***** **** ******* *** sharpness ******* ** *** ****** **** a *** ***** **** *** **** nighttime *********.

(1)
(1)
(2)
DG
Donald Gordon
Jan 17, 2019
IPVMU Certified

**'** *** ***** * *** ** experience **** **** ***** *** ********* bandwidth ******* *** ******** ******* ******** at *****.  ** *** ********* ******* and **** *** ********* ********:

- *** *** ** ** (***** is *..***, ******* ** **) - decreases ******* ***** ***********

- *** *** ** ** (***** is *..***, ******* ** **) - increases ***** *********

- ********* *** ** ** (***** is *..***, ******* ** **) - decreases *********

 

*** ** ***** ******** ******** *** quality ** *** ***** ********** ****** the ***.  *** ********* ******* ***** the ******** ** *** ******* ***** signal *** ** **** ***** ** a ****** ** ****** ***** ** had ** **** **** ***** **** off ** * ***** ****** ** the ******* *****.

*** ** ******* **** *** ***** offenders *** ********* ********* ********.  ** some *****, *** ****** ******* *** MBR *** ** *** ***** *** disappointing.  **** **** * *** ******* had *** ******** ******** *** ** saw ******* ********* ******** **** * mbps ****** *** ******* ** ** mbps ** ***** *** ************ ** much ** *** **** ** ******** by *** ********* ***** ****** ****** Monitor.  *** ********* ********* **** *** constant *** ****** ************ ******* ******* in *** ****** *******.  ** **** using *** *.***+ ***** ** *** the *******.

UM
Undisclosed Manufacturer #2
Jan 21, 2019

*** *** ** ***** **** ****** with ****+ ******? ** * **********, it ***** **** ** *********** ** see ** **** ***** * ********** in **** ********.

Avatar
Ethan Ace
Jan 22, 2019
IPVM

***, **** ** *** *.***. ** agree **** *.*** ***** ** ** interesting ******** ****, *** **** ** 2019 ** ************* ******* *** ****** of ******* **'* ******* ** *** test. ** ********, ****, *****, *** others *** **** *.*** ****** ********, we'll **** ** **** *****.

UI
Undisclosed Integrator #3
Jan 21, 2019

**** **** ** ** **** **** here, *** *** ********* **** ** anything ** **********? 

(1)
Avatar
Ethan Ace
Jan 22, 2019
IPVM

* ***** **'* * *********** ** factors. ***** ******* *** ********* ***** the ****** ******* ****** ** **** in **** **********. **'* ****** **** in ****/**** **** **** ***'* **** in ************* *** ** *** *****, day ** *****.

**** *** ***** ***** *** **** design ** *** ******** ** ***** cameras (******), ***** **** *********** *** using ********* ** *********. **** ** their ******* ******** *** **** *** ARTPEC **** **** ******* *** ** split **********. **, * ******* **** since ****'** ******* **** ***** *** chip, ** ***** ****** ** * matter ** ****** "******" *** **** efficient ***********.

************, **** ******* **** ** (*******, but *** ******) ** **** ** low *****. **** *** *****, *****, among *** ********** *** *** ***** imaging *** ***** ** ******** ** generally **** **** **** **** *********** cameras.

**** *** ******* *** ** **, I ***** ** *** ***** ** cut **** ******.

**** ** *** ** *** **** Axis ** ***** **** ****. * number ** ********* ****** **** **** performing ****, ***, ********** ** **** recent *********** *** **/** ****** *******. And ***** ****** ****** **** ** not ***** ****** ** **** ** older ******/******* *******, ***** **** *********.

(1)