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 TRAFFIC SIGNAL CONTROLLERS |
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•VEHICLE ACTUATED CONTROLLER
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General |
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These Traffic Controllers have been designed to conform to Indian Standard specification
IS : 7537 – 1974 and British Standard Specification No.
BS : 505 – 71 wherever applicable and standard international practices.
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The Controller is fully Solid State and has no moving parts. The controller employs fully Micro controller based Circuitry on double side glass epoxy PCBs which have green masking to counter tracking problem and is modular in design, having plug in system for easy maintenance and operations. System design is such that it takes care of conflicting lights on opposite roads and has short circuit protection and optically isolated outputs.
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CAPABILITY OF THE CONTROLLER |
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The basic controller is capable of being operated in any of the following modes :
As an independent, fixed time controller at an isolated intersection. Multiplan
As a manually operated controller with optional remote station at police booth .
The main frame of the controller will have facilities for extending the capability of the controller for any of the following additional modes of working by addition of suitable modules at any stage.
As a part of micro controller based multi programmable system.
As part synchronized green wave system with neighboring intersection . (optional )
Vehicle / pedestrian actuated mode , with optically isolated input channels . with comm.
Port for reverse count down timer . (RS 232 + RS 422 / RS 485 )
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• MULTIPLAN CONTROLLER
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FEATURES |
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1. Max Number of Signal o/p : 32 Nos.
2. Number of Stages : 1 - 32 Stages
3. Max Number of Signal Plans : more than 24 plan
4. Max Number of Day plans : 8 holiday plan + weekly plan 8 per day + 24 routine plans
5. Max Number of plan transitions : 24 per day.
6. Max Number of Holidays per : 10 annum.
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SIGNAL SEQUENCES |
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A. Vehicular Groups
Red - Green - amber
Blink / on / off mode.
B. Pedestrian Group
Red - Green - blink / on / off
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MODES OF OPERATION |
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1. CABLESS LINKING MODE ------- optional
2. FIXED TIME
3. MANUAL OPERATION
4. FLASH MODE |
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SAFETY FEATURES |
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a. Conflict Monitoring: Interlocking by hardware for conflicting green signal.
b. Self Diagnostic Features
- Through Watch Dog Timer
- System Failure Detection
- Software check sum in RAM Monitor
- Hardware / Software Watchdog
- Data Check At the time of data entry.
c. FLASH Facility through hardware and Software.
d. Electrical
Lamp Switching : Solid State optically isolated.
Max. Load Per Solid : 16 A
State Output
Max. Controller Load : 4 KVA
Power Supply : 170 to 250 V AC & 50 ± 1 Hz
Power Consumption : 50 Watts for Control Circuit / rest as per O/P actual load
e. Environment
Supply Interruption : Continuous Operation with Upto 100 ms Mains Break
Supply Failure : Restarts without operator intervention. No Loss of Data upto 9 years.
Temperature : 0 °C To 70°C
Humidity : 95% Humidity at 40°C Non Condensing
Construction : Weather Proof. ,Dust and Splash Proof
Steel Cabinet coated with anti corrosive & Painted with cable entry and separate access to police panel
controls |
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Download Specification |
• PELICAN (PEDESTRIAN ACTUATED)
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Push Button control panel for pedestrian actuation traffic signal control - pole mounted type with
audio and visual Indication as per selective models . system is also known as Call registration unit for
Pelican traffic control with manual Push button switch , Indication for WAIT and Traffic lights ,Panel
is specially designed considering safety of pedestrian traffic and works on Low voltage DC operation
for safety against voltage shock . |
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Indications :
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Visual indication : 3 indicators for status of Vehicular traffic signals ,
2 Light Indicators for pedestrian signals .
1 for Call confirmation Indication ( call registration /wait )
Audio Indication : Beep buzzer ( in selective models )
Working voltage : 24 Volts DC or 110/ 220 Volts Ac .
Body material : Plastic / Metal MS Powder coated .
Mounting : Pole mounted with help of brackets .
Application : Pelican Traffic signals , Automatic / Manually / actuated
Intersection . |
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Download Specification |
• GSM BASED - REMOTE CONTROLLER
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Envoys ATC intersection controller EMTC 08 is designed keeping in view all safety / technical features ensuring Smooth Flow of Traffic – This model is Modular in design, consisting many add-on features for up- gradation, which allows it to work as Intelligent Intersection controller & centrally controlled with CCTV Surveillance, RED Light Violation etc, using extra peripherals / interface Cards. This Model has Ethernet, GSM connectivity & USB support ports & especially ports for Digital Count Down Timers which can also work in actuated or demand dependent Mode. Other Basic Features Like Multiple day plan, Day of the week programming, Specific dates (Holiday ) etc., are also available. |
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Download Specification |
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