Wireless Sensors

Another commonly deployed technology addresses wireless detection – identifying the presence of pedestrians at a crosswalk entrance in order to activate the safety systems.  The generic term for this application is sensors.  There are a host of sensor technologies designed for this purpose, where some fill the purpose efficiently and inexpensively, while others are costly and less effective.

Wireless Activation Devices

A third technology can be thought of as a wireless switch – like a garage door opener, or TV remote control, or a key fob, etc.  The device transmits a signal to wirelessly activate a switch. These are deployed in crosswalk safety systems at all entrances to a crosswalk so that the signaling devices at each entrance don’t have to be physically connected to each other in order for the entire system to operate.

Remote Wireless Transfer

A fourth technology is an extension of the third.  It facilitates bi-directional communication for remote information transfer. The key term here is remote.  This application is deployed to operate equipment without actually being on site at the crosswalk controller.  This technology is the most advanced and also supports the US DOT Integrated Traffic Systems goals.

LightGuard Wireless Crosswalk Alerting System Component Option List

Controller

Configurable/Programmable, LCD, keypad, scheduled activations via internal RTC, data logging, supports up to 4 different outputs simultaneously

Wireless Communication
900MHz Industry Standard RF, FCC approved, secure node/gateway connections, supports 1 Master + 1 Slave up to 1 Master + 4 Slaves2 for multiple crosswalks managed from one controller

Upgrades
Enlighten1 Flash Rate, Bollard inputs, Multi-Slave (4 max), Dual Alternating Beacons, Multi-output Master

Static signs
Arrow, Pedestrian, school, etc…

1 – not supplied by LGS | 2 – additional upgrade required

LightGuard Solar Wireless System with Power, Outputs & Inputs Options

Pictured above: LightGuard’s Solar Wireless LGS-WRRFB-F System with power, outputs and inputs system options/call-outs.

System Configuration:
Controller — Configurable/programmable, LCD, keypad, scheduled activations via internal RTC, data logging, supports up to 4 different outputs simultaneously

Wireless activation hardware— 900MHz industry standard RF, FCC approved, secure node/gateway connections, supports 1 master + 1 slave up to 1 Master + 4 Slaves, 2 for multiple crosswalks managed from one controller

Upgrades — Enlighten1 flash rate, bollard inputs, Multi-Slave (4 max), Dual Alternating Beacons, Multi-output Master

Static signs — Arrow, pedestrian, school, etc…