Long Range Access Control Readers

Author: Brian Rhodes, Published on Nov 05, 2014

One of the classic challenges for access control are parking lots and garages, where the user's credential is far from the reader. With modern access systems, the basic methods of increasing the read distance mean using special readers, credentials, or a combination of the two.

In this note, we look at the options for reading access credentials long distances apart (enhancing readers or credentials).  We also cover the importance of physically designing reading points and discuss using different frequencies to gain range (UHF/Microwaves). Finally, we contrast option costs, and list their relative weaknesses compared to standard card readers.

*** ** *** ******* ********** *** ****** ******* *** ******* lots *** *******, ***** *** ****'* ********** ** *** **** *** reader. **** ****** ****** *******, *** ***** ******* ** ********** the **** ******** **** ***** ******* *******, ***********, ** * combination ** *** ***.

** **** ****, ** **** ** *** ******* *** ******* ****** credentials **** ********* ***** (********* ******* ** ***********).  ** **** cover *** ********** ** ********** ********* ******* ****** *** ******* using ********* *********** ** **** ***** (***/**********). *******, ** ******** option *****, *** **** ***** ******** ********** ******** ** ******** **** readers.

[***************]

Card ** ******?

****** ********* *** **** ****** ** **** *** *** *** most ****** ******* ****. ** ********, ******* *********** ******* **** ***** read ****** (*.*. **** ******,******, ** ******/******* *** ******* ******** **** ******** ** **** than **" *** ********* **** **** *" ** *"). 

********** ******* *********** ** *** ** ****** *****. **** ******** contactless *********** **** *** ********** **** *** ****** ****** *** be ********, ****** ** ********** *** **** ** *** ******* or *** ***** ********* ** ******** ** ******* * ****'* ***********.

** **** ***********, ********** **** ***** ***** ** ***** *** options:

*****:****** **** **** ********* *** ********** *** ****** ** ******** ******** are ******** ** '******' *** '**** ******' ***** ** ****. While ****** ***** ******** *** *** * ' - **' of *****, ** **** ******* ********* *** **** ** *** credential *** ******** ******** *********** ** *********. ********* ********* *********** to ***** ********** *** *** $* - $** *** ****, potentially ******* **** ** ********* *** * ***** ******. *** image ***** ** ***** **** **** ****** **********:

*******:********* *** **** ******, *** ******* ***********, ****** ** ** increase *** ***** ** *** ****** **** **** ******** *****. Most ****** ************* ***** **** **** ** **** ***** ******, but *** ******** ** ********* ***** ***** **'. ** ********, the *********** ** ***** ***** ** ****** ***** ** **** ranges *** ** **********, *** ********** *** **** ** *** reader ****** * *** ****** ** ***** ********* ********. *******, long ***** ******* **** ** - ** **** **** ******** range ************, *** *** **** ********* ** ******** ********* ***** needed ** * ******, **** ******** ******* ******** ********** ****. The ***** ***** ******* **** *** ********* ***** **** ****:

**** ************ **** ********* ** **** ******/****-****** ***** *** **** range *******, **** *** ************** *****'* (*** ***) ******** **********. *******, *** ************ ********* *** **** ** ******** ** increase****** (**** ** **** ** *** '***/*********' ******* *****).

Design *******

******** ********* ** ******** ** ****** **** ***********, ********** ** the ********** ** **** ****. *** ******* ****, ******* *** reader ** ******* ** * ******** ** ******* ****** ******* distance ** * ****** ******* ******. **** **** ********* *********, users *** ***** ** ******** ** **** **** *** ****** and ***** ***** ****** ***** ***** ** * ******.  

**** **** ***** ******* *** ****, *** ****** ******** **** where ***** *** ** ****** ** *** ** ***** ******. Ensuring *********** ** ******* **** *** ******** ********** ** ** read ** *** ********** ******* ******* *** *******.

****** ** *** ***** *****, * (***** *****) *********** ****** is ******* ** * ******** ****** **" ** * ******** credential:

***********: ******* ********* ****** ******* ** *********** *** ******* **** to * ***** * *** **** ******, ********* *** ***** of *** ** *** ********. *** **** **** *** ********** serve * ******** ****** ******** ** ****** ***** ******** ****** to ******** ******, *** ** **** ****** ******** ** ** tightly ******* ** *******, ********* ****** *' - *' ****. 

**** ****** *********: *** *** ******** **** ** *** **** ******, ** it ** ****** ** ******* ******** ******* ** ***********. ******* are ********* ********* ** ********* ********* **** *** ******* *****:

** ******** ** ******** ******* ****** ********** *** ** ****** down ****** *****, ***** ****** *** **** **** ******** ******** for ******** ********** ****** ** ******* *****.

***/*********

** ***** *****, *** ****** **** ***** ******* **** ******** RFID ******* *** *******. **** *** ******* ******** ****** ****** 10' ** ****, ************ *** *** ** **.** *** **** Ultra-high (***) ** ********* ***** *********** *** ******* ** ******.

***** ****** ********** ********** ***** *********** *** ********* ** '**** up' ******* ** ******** **** *********** ** **** *********, **** are ******* ******* ** ********* ********* ****:

***** ***: *** ** *** ******* ** ******* ****** *** **** ***** ********** *******, ***** ****** ******* different ****-***** ********* ********* *** (**:***** ******) ** ********* ***** (******* ******) *******. ** **** ****** *******, *** ** *** ********* long ***** ****** ***** ** *****, ** ********* ** **** costly. *******, ***** ********* ********** ********** **** ******* *** ****** due ** ***** ****** ** ****** ******** *********** **** *** ******. Microwave ******* ********* ****** ********** ******* **** *** *** ** read ************ **** **** **' ** ****.

****: ******* ****** **** ***** ******, *** *******'*** ************ * ***** ** ********* *** *********** *** ******* ******** for ******* ****** ************. ***** ******** ******** ******* ******** ** integrate **** * **** ***** ** ****** *********,********* *********** *** ***********, **** '*****-*****' ****** ******* ******* ********** *******.

Cellphone *******

* **** ****** ****** *** **** ***** ************* ******* ***** is ****** ********* *******, *** **** *** ************* ** ******** cellphone ********* ** ******* ******.  ***** ******* ******* ** ****** cell ********* ********, *** ******* ** ******** * ***** ** sticking * *** ** *** **********, ******* **** * ***** number *** ***** ** * ***** ** ***.

***** ******** *** ******* ***** -******* *** ******** *** ******* wherever **** **** **** *******- ********** ********** ** ** *****, and ****** **** *** ****** ***** ******* *** ** ********* shared **** ************ ******.

**** ******** ********* ******* ******* * ****** ***, **** **** $150 ******* ******* ***************, ** *****-***** ***** **** *** **** ******* ****** **** ******* $*** *** ****.

Comparison *****

*** ***** ***** ********* *** *** ****-***** ******* ******* ** this ****:

 

Comments (4)

** *** ****** **** * ******* ** ******** ******* **** were **** ** ****, ** *** *****. ** ***** *** card ***** *** **** ** **** ** *** *** **** at *** **** ****. **** ***** ** ******** ** **** a *******.

**** *** ** *** ** *** ** **** *** ****** of *** *** *** ******** *** ******** ** **** *** foil ** ***** *** ************ ***** ****** *** ******.

*********** *,

**** ******* *** *** ***********. *** ** ****** ** ******* by *** ******* ** *** ****** ** *** **** ** 2 *******: *** ** *** ***** ** *** ****** *** one ** *** **** ** *** ******. ** *** ******* is ** *** ***** ** *** ******, *** ** ****** will ** ****** ***** (** **** ***** ** *** ***** than *** ****). *** **** ******* **** *** *** ****** by **** ********* **** ** **-******** (**** *******, *** *******) will **** **** *** **** ** *** *******. **** **** small ******* (**** * ***** ** *-* ******) ********* ****-**-**** on * ******** **** **** ********* **** **** *****. *** will ***** **** ** ******* *** "**" ****** ** ** inches *** *** "***" ****** ** ** ****** ******* ** having **** ****-**-**** ** ** ******.

*****,

** **** ***** *** *** **** ******** ****** ** *********** a **** ** ** ****** *** ************ ** * ****-***** reader *** ****** *** *** ** ******* ******* **** ** this (**** * **** **** ****** *** *** ** ******* doors ****):

RF-REM2-433-HID26

**** **** ****-**-**** **** ******** ********* **** **** * ******** wiegand ****** **** **** ******* **** *** **** ****** **** accepts * **-*** ******* ***** (** ********* ** ****** ****** will *** **** ** * ******* **** ****** *** **** remote **** **** * ****** ** **** **** * **** card)

**** *** ** *** ** *** ***** ** *** **********, but ** **** *** **** **** **** **** *** ******* Signal (*** **) ******** ****** **** ***** *******. *** ** attached ** *** **** **** ****** (********) *** *** ****** detects *** *** *** ***** *** ****** ***** **** ****** the *** **********. *** # ** **** "*****" ** **********, as ** *** ***** *** *********. ** *** *** ** fail **. ** **** ** * ***** ** *** ** to ***** ** *** ******* ***** **********, *** **** *** very *******.

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