Product Overview
The Traffic Signal Controller is a centralized coordinated road traffic signal controller, designed and built to global industrial standards for reliable, long-term outdoor operation. It features a modular design with a high-performance ARM processor and Linux multi-tasking operating system, supporting a wide range of control modes and detector interfaces. It is widely used on urban roads, highways, and county/township intersections.
Whether for multi-interval fixed-time control, actuated control, bus priority, or emergency vehicle response, the controller reliably executes timing plans, providing a solid control foundation for intersection traffic management.
To meet the needs of different intersection scales and scenarios, the controller is available in four series: Large, Medium, Small, and Wall-Mount, covering everything from arterial roads to branch roads, and from complex intersections to simple crossings.
Key Advantages
|
Advantage |
Description |
|
High Safety |
Built-in red-green conflict detection and red-light-outage detection; automatically switches to hardware yellow flash in case of failure, ensuring intersection safety |
|
High Compatibility |
Supports IO, RS422/485, and RJ45 interfaces for various detectors (inductive loops, magnetic, video, radar, radar-vision integrated sensors) |
|
Modular Design |
Plug-in chassis structure with independently removable main control board, lamp control boards, and detection boards for easy maintenance and expansion |
|
Rich Control Modes |
Supports multi-time period fixed-time control, inductive control mode, single-point optimization, cableless coordination, bus priority, emergency vehicle control, and more |
|
Open Architecture |
Full disclosure of proprietary protocols can receive and execute third-party optimization algorithms |
|
Proven Reliability |
Industrial-grade components with wide operating temperature range and robust protection for continuous outdoor operation |
|
Platform Integration |
Connects to upper-layer signal control platforms via 1049.2, 20999, NTCIP, or other standard protocols |
Model Specifications
|
Series |
Lamp Groups |
Output Terminals |
Detector Inputs |
HMI |
Enclosure |
IP Rating |
Application Scenarios |
|
Large |
32 |
96 |
32 |
Optional 12" touchscreen
|
Front & rear double doors + manual panel + backup power door
|
IP65
|
Urban arterials, large intersections, multi-phase complex intersections |
|
24 |
72 |
32 |
|||||
|
Medium |
12 |
36 |
8 |
Optional 12" touchscreen |
Single door + manual panel |
IP65 |
Urban collectors, standard intersections |
|
Small |
4 |
12 |
4 |
— |
Single door |
IP65 |
Branch roads, township roads, industrial park intersections |
|
Wall-Mount |
4 |
12 |
4 |
— |
Wall-mount |
IP65 |
Space-constrained locations, ramps, pedestrian crossings |
Technical Specifications
|
Parameter |
Specification |
|
Power Supply |
176 - 264VAC, 25A |
|
Maximum Power Consumption |
4500W |
|
Signal Lamp Terminal Current |
5A / 220VAC |
|
Insulation Resistance |
≥10MΩ (normal condition) |
|
Communication Interfaces |
2*RJ45,2*USB Device, 1*DB9 serial, 1*RS422/RS485, 1*RS232 |
|
Operating Temperature |
-40°C ~ +70°C |
Key Features
Control Modes
|
Mode |
Description |
|
Multi-Time Period Fixed-Time Control |
Schedules and runs various fixed-time plans according to different time periods |
|
Pedestrian Request Control |
Pedestrian push button triggers early release of pedestrian phase |
|
Actuated Control |
Detects approaching vehicles and extends green time incrementally after minimum green |
|
Single-Point Optimization Control |
Determines green ratio and cycle length for the next cycle based on traffic volume, green ratio, and saturation flow |
|
Cableless Coordination Control |
Uses GNSS (GPS / BeiDou) satellite time as a reference to coordinate adjacent intersections with offset timing |
|
System Optimization Control |
Executes control plans generated by an upper-level platform |
|
Bus Priority Control |
Detects buses and extends green time or shortens red time to give priority |
|
Emergency Vehicle Control |
Immediately switches to the requested green phase upon emergency vehicle detection |
Fault Detection & Safety Mechanisms
Equipped with comprehensive fault detection and safety protection, it detects red-green signal conflicts and red light outages, and triggers hardware yellow flash immediately. It also verifies phase tables during configuration and synchronizes parameters with the upper platform regularly.
Manual Operation & Remote Control
Supports both local manual panel operation and remote platform control, with functions including manual/auto switch, step control, yellow flash and all-red mode. It is compatible with multiple types of countdown timers.
Detector Integration
Supports IO, RS422/485 and RJ45 interfaces for connecting various detectors. Detectors are mapped to the controller's parameter table one-to-one, enabling plug-and-play configuration.
Application Scenarios
|
Scenario |
Recommended Series |
Application |
|
Urban Arterial Roads |
Large |
Multi-interval fixed-time control + cableless coordination for green wave |
|
Urban Collector Roads |
Medium |
Actuated control or single-point optimization based on real-time traffic |
|
Branch Roads & Township Roads |
Small |
Multi-interval fixed-time control for low-traffic scenarios |
|
Industrial Park Intersections |
Small / Wall-Mount |
Intelligent lighting based on traffic patterns to avoid full-power operation |
|
Ramps & Pedestrian Crossings |
Wall-Mount |
Pedestrian request or actuated control for on-demand operation |
|
Bus Lanes |
Large / Medium |
Bus priority control to ensure public transport efficiency |
|
Hospitals & Fire Stations |
Large / Medium |
Emergency vehicle control to clear the path for ambulances and fire trucks |
Project Cases
Guangzhou Conghua Smart Green Wave Project
48 intersections deployed with radar-vision integrated sensors and signal controllers
Single-point adaptive control and green wave coordination implemented
Results on Cheng’ao Avenue:
- Eastbound average speed increased from 35.75 km/h to 49 km/h
- Westbound average speed increased from 32.25 km/h to 51 km/h
- Average stops per trip reduced from 10 to 3
Maoming Smart City Project
Multi-control mode integration with Hisense signal controllers
Vehicle detection accuracy of radar-vision integrated sensors exceeded 95%
Optimized detection for non-motorized vehicle waiting zones
Guangzhou Multi-District Signal Controller Upgrade
Deployed in Huadu, Baiyun, Panyu, and Huangpu districts
Connected to Guangzhou’s unified traffic control platform, enabling multi-brand networking
Actuated and adaptive control delivered reliable results
Product Appearance
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