Double Channel Vehicle Traffic Detector

Double channel 12-24VACDC Vehicle Traffic Detector for Barrier Gate Anti Hitting Trigger

JUTAI LD-202 Dual Channel Loop Detector: Elevating Barrier Gate Operations

Overview: Elevate barrier gate operations with the JUTAI LD-202 Advanced Dual Channel Loop Detector, engineered to deliver unparalleled precision in vehicle detection. This sophisticated sensor ensures seamless operation and reliability across various applications, thanks to its extended sensing range, high sensitivity, and intelligent features.

Distinctive Features:

1. Enhanced Sensing Range and Sensitivity: The LD-202 sensor offers an extended sensing range of 15 to 2000μH and exceptional sensitivity, ensuring accurate detection of diverse vehicles for consistent performance.

2. Smart Automatic Reset Function: Equipped with an automatic reset function, the LD-202 sensor swiftly resets in case of malfunction, enhancing system stability and reliability without manual intervention.

3. Advanced Direction Recognition: With cutting-edge direction recognition capabilities, the LD-202 sensor precisely identifies vehicle movement directions, enabling precise control over gate operations for optimized efficiency.

4. Robust Lightning Protection: Featuring robust lightning protection of up to 40000V, the LD-202 sensor ensures exceptional durability and reliability, safeguarding against lightning strikes for prolonged longevity.

5. Wide Operating Environment Range: Engineered to thrive in diverse environments, the LD-202 sensor operates flawlessly within a wide temperature range from -40°C to +70°C, ensuring consistent performance even in challenging weather conditions.

Operational Functionality:

1. Efficient Vehicle Detection: Utilizing advanced inductive sensing technology, the LD-202 sensor accurately detects vehicles without physical contact, relying on changes in inductance within the loops caused by the vehicle's metal mass.

2. Intelligent Direction Recognition: The LD-202 sensor's intelligent direction recognition capabilities enable precise identification of vehicle movement directions, facilitating optimized gate operations.

3. Seamless Automatic Reset: Featuring a seamless automatic reset function, the LD-202 sensor ensures continuous operation and system reliability by automatically resetting in the event of a malfunction.

4. Reliable Relay Output: Providing reliable relay output signals upon vehicle detection, the LD-202 sensor enables various actions such as gate opening, traffic light control, and vehicle counting for enhanced operational efficiency.

Versatile Applications:

1. Traffic Management Systems: Deployed in traffic control systems to detect vehicles at intersections, toll booths, and parking entrances/exits, optimizing traffic flow management.

2. Gate Automation: Integrated into gate control systems for automatic opening and closing of gates in residential, commercial, and industrial environments, enhancing security and convenience.

3. Parking Facilities Management: Utilized in parking lots and garages to manage vehicle entry and exit, monitor parking occupancy, and enforce parking regulations for efficient space utilization.

4. Access Control Systems: Employed in access control systems to authorize vehicle entry at secured locations such as gated communities, industrial facilities, and military installations, ensuring controlled access and security.

5. Traffic Light Optimization: Used to trigger traffic light changes based on vehicle presence and direction, minimizing congestion and optimizing traffic flow at intersections and roadways.

6. Vehicle Counting Applications: Applied in vehicle counting applications for traffic studies, parking occupancy monitoring, and retail traffic analysis, providing valuable insights for traffic management and business operations.

Indicators and Switches Overview

Power LED (RED): The red power LED serves as a clear indicator that the device is powered ON, providing users with visual confirmation of its operational status.

CH1 Detecting LED:

• Continuously On: Indicates successful vehicle detection in Channel 1.
• Blinking Slowly: Alerts users to potential issues such as a short circuit in the loop or insufficient twists after loop installation.
• Blinking Fast: Indicates an open circuit in the loop or excessive twists after loop installation, prompting further inspection.

CH2 Detecting LED:

• Continuously On: Signals vehicle detection in Channel 2.
• Blinking Slowly: Suggests possible issues like a short circuit in the loop or insufficient twists after loop installation, prompting users to verify installation integrity.
• Blinking Fast: Indicates an open circuit in the loop or excessive twists after loop installation, requiring corrective action for optimal functionality.

Sensitivity Selection: Fine-tuning the sensitivity and frequency of the loop is facilitated through a combination of 7-way and 10-way dip switch settings. Users can tailor sensitivity settings to their specific requirements by adjusting dip switch configurations, as delineated in the dip switch setting tables below. Dip switches 6, 7, and 8 afford control over sensitivity selection for Channel 1, offering options ranging from 0.8 (least sensitive) to 0.015 (most sensitive). Similarly, dip switches 3, 4, and 5 govern sensitivity selection for Channel 2, providing users with a spectrum of sensitivity choices, also spanning from 0.8 (least sensitive) to 0.015 (most sensitive).

3. Switch 1=S1 : Channel 1 Loop Function Selection (10 way dip switch)
(1)(Switch 1) DIP 1 & DIP 2 Special Sensitivity Increase For Both Trailer (Both Channels).
 

When installation, please keep the product plug and socket in the vertical direction
 

The operational principle is as follows:

1. Entry Process:

   • Upon a vehicle's entry into the community or parking lot, simultaneous activation of the two loop coils occurs.
   • The JUTAI Double Channel Loop Detector (LD-202) triggers the UHF reader positioned at the entrance.
   • Upon reading the card ID, the UHF reader transmits the ID to the controller (AC-11) via Wiegand output.
   • The controller verifies the ID's validity and outputs a relay signal to open the gate barrier.
   • Once the vehicle enters the community or parking lot, the barrier arm automatically lowers.
   • The safety and anti-smashing function is facilitated by the JUTAI Single Channel Loop Detector (LD-100/102).

2. Exit Process:

   • As the vehicle exits the community or parking lot and passes the internal UHF reader, the LD-202 triggers the UHF reader.
   • The reader reads the card and sends the ID to the controller.
   • Upon validation of the ID, the controller emits a relay signal to open the gate barrier.
   • After the vehicle exits the community or parking lot, the barrier arm lowers automatically.
   • The safety and anti-smashing function is facilitated by the JUTAI Single Channel Loop Detector (LD-100/102).

In both scenarios, the LD-202's Direction Recognition Function ensures accurate and efficient operation.