Unidirectional Street Light System

Introduction

It is overall control system for on/off condition of street light by transmitting data through FM radio from a central control center in a local self-government and receiving them into the switch in the junction box of street light. This is a solution for the inaccurate timer and difficulty of package control.

Central Control System

Functions & Features

1. Wireless remote on/off control.
2. Operational data change installed in switch of street light.
3. Dividing control of installation area.
4. Switching over to a repeater.
5. On/off control signal and status indicator.
6. Memorizing sunrise & sunset time and operating built-in timer.
7. Wire/wireless repeater network.
8. Alternative of manless auto/manual control.
9. Controlling through PC with RS232 cable.
10. Local, group, and individual control.

Product Specification

1. Frequency Range: 138~174MHz( Designated frequency using).
2. Reference frequency: PLL.
3. Type of emission : 8K50F2.
4. Antenna : Dipole Antenna.
5. Signal to noise ratio : over than 38dB.
6. Receive sensitivity : Below -118dBm.
7. Output of power : 1W~25W.
8. Backup battery in case of power failure.
9. Rated voltage : single-phase alternating AC110/220V, 60Hz.
10. Temperature : -20°C ~ +50°C.

Wireless Switch

Functions & Features

1. Operating with wireless signal of on/off time
2. Internal operational data change with receiving wireless signal
3. Internal operational data change and checking on/off switch with simple transceiver for operator
4. 17 local areas, 4 wide areas, 63 individual ID set-up
vOperating on/off standard for 17 local areas and built-in timer in case of no service of wireless signal(Safety device)
5. Controlling every other light system/every other day
6. Built-in 2 circuits for all-night light and designated light.
7. Controlling on/off function in the dead of night.
8. LCD & Hand control key in a job site.
9. Wireless signal and Receiving status and frequency level indicator.
10. Permanent saving of final operational data.

Product Specification

1. Frequency Range: 142~159MHz( Designated frequency using).
2. Reference frequency: PLL.
3. Type of emission : 8K50F2D.
4. Antenna : Helical Antenna (Folding).
5. Signal to noise ratio : over than 38dB.
6. Receive sensitivity : below -118dBm.
7. Output of power : below 10mW.
8. Backup battery in case of power failure.
9. Rated voltage : single-phase alternating AC220V, 60Hz.

Switch Collateral Equipment

Simple transceiver of street light / guard lamp - remote controller

Functions & Features

1. Equipment operating status/mode indicator (on/off time, present time).
2. Wireless change of street light operational data in a job site.
3. Monitoring wireless street light switch.
4. Operational data LCD and correction function.
5. Selecting of street light and guard lamp.
6. Transmitting time set-up signal.
7. Connecting to a cigarette plug of vehicle.

Product Specification

1. Frequency Range: 142~159MHz( Designated frequency using).
2. Output of power: within 154mW.
3. Receive sensitivity : below -115dBm.
4. Radio transmission: one frequency simplex operation.
5. CPU : 1 Chip micro processor.
6. Type of emission : 8K50F2D.
7. Reference frequency: PLL synthesize.
8. Rated voltage : DC9V.
9. Antenna : Helical Antenna.