Wavetronix SmartSensor Matrix Manual de usuario descargar pdf (Pagina 6)

SmartSensor Matrix

The RPD shall support the conguring of lanes, stop bars

and detection zones in 1-ft. (0.3-m) increments.

When lanes have variable widths or have variable spacing (e.g.

gore between lanes), precise resolution is necessary.

10.3 Windows® Mobile-based Software. The RPD shall

include graphical user interface software that displays all

congured lanes and the current trac paern using a

graphical trac representation.

A visual representation of trac paerns allows an installer to

quickly associate specic detections with corresponding vehicles,

and it facilitates verication of RPD performance.

The graphical interface shall operate on Windows Mobile,

Windows XP, Windows Vista and Windows 7 in the .NET

framework.

The software shall support the following functionality:

● Operate over a TCP/IP connection

● Give the operator the ability to save/back up the RPD

configuration to a file or load/restore the RPD configu-

ration from a file

● Allow the backed-up sensor configurations to be

viewed and edited

● Provide zone and channel actuation display

● Provide a virtual connection option so that the software

can be used without connecting to an actual sensor

● Local or remote sensor firmware upgradability

11.0 Operating Conditions. The RPD shall maintain accurate

performance in all weather conditions, including rain, freez-

ing rain, snow, wind, dust, fog and changes in temperature

and light, including direct light on sensor at dawn and dusk.

RPD operation shall continue in rain up to 1 in. (2.5 cm) per

hour.

The RPD shall be capable of continuous operation over an

ambient temperature range of -40°F to 165.2°F (-40°C to 74°C).

The RPD shall be capable of continuous operation over a rela-

tive humidity range of 5% to 95% (non-condensing).

12.0 Testing.

12.1 FCC. Each RPD shall be certied by the Federal

Communications Commission (FCC) under CFR 47, part

15, section 15.249 as an intentional radiator.

The FCC certication shall be displayed on an external

label on each RPD according to the rules set forth by the

FCC.

The antennas shall cover a 90 degree horizontal eld of

view.

The sidelobes in the RPD two-way antenna paern shall

be -40 dB or less.

Low sidelobes ensure that the performance from the antenna

beam widths is fully achieved.

9.3 Resolution. The RPD shall transmit a signal with a

bandwidth of at least 245 MHz.

The bandwidth of the transmit signal translates directly into

radar resolution, which contributes directly to detection perfor-

mance. For example, an RPD that transmits at a low bandwidth

will have low radar resolution, which could cause it to count a

single vehicle as two vehicles in adjacent lanes. As another ex-

ample of the adverse eects of low radar resolution, the response

from a sign or other radar target in the roadway may spill over

into the lanes of travel and desensitize the radar. In order to

achieve the specied detection accuracy in a variety of condi-

tions, the unwindowed radar resolution cannot be larger than 2

ft. (0.6 m) at the half-power level, which requires a bandwidth

of 240 MHz. The high radar resolution reduces the problem of

vehicle responses geing drowned out by brighter vehicles in ad-

jacent lanes and improves performance for moving and stopped

vehicles near roadway targets.

9.4 RF Channels. The RPD shall provide at least 8 RF

channels so that multiple units can be mounted in the

same vicinity without causing interference between them.

9.5 Verication. The RPD shall have a self-test that is

used to verify correct hardware functionality.

The RPD shall have a diagnostics mode to verify correct

system functionality.

10.0 Conguration.

10.1 Auto-conguration. The RPD shall have a method

for automatically dening trac lanes, stop bars and

zones without requiring user intervention. This auto-con-

guration process shall execute on a processor internal

to the RPD and shall not require an external PC or other

processor.

The auto-conguration process shall work under normal

intersection operation and may require several cycles to

complete.

10.2 Manual Conguration. The auto-conguration

method shall not prohibit the ability of the user to manu-

ally adjust the RPD conguration.

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