Level Crossing Control

Laser-Sensor Type

Level Crossing Obstacle Detection System
Highly-Functional Surface-Detection Obstacle Detection System (using 2D Lasers)
Compared to Conventional Line-Detection Systems
Kyosan is now ready to introduce a Level Crossing Obstacle Detection System which responds to the needthat asks for safety at the crossing area, and revision to the “Act on Promotion of Railway Crossings” inJapan. This new system covers the whole level crossing area using 2D Lasers (surface-detection), which
differentiates from conventional line-detection using Light Emitters and Receivers.

Characteristics●●●●●

No need of processor(s) in Equipment Box as oursystem integrates distance ranging, detection, andjudgement elements into one Laser-Sensor (Sensors)
High-quality on low cost due to sensing technology
developed through Advanced Driving AssistantSystem (ADAS)
Robustness enhanced against weather conditions
such as rain, fog, or snow
Sure Detection of black cars with low reflectance, inwhich lasers are weak in, by Pole Detection (Patented)
Free drawing and setting of sensor detection area(s)using dedicated tool (Up to 6 areas)

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●Heater(s) embedded for the purposes of front-panel
fog prevention and snow melt
Fail-safe and redundant sensors produced by DENSOWAVE INCORPORATED (have undergone a Safety
Assessment by the Rail Technical Research Institute inJapan)
Failure-detection self-diagnostic function mounted,
7-segment display, with relay-contact output
2 Sensors (top and bottom) mountable on one
dedicated post (to avoid, as much as possible,
non-detection of vulnerable road users and smallchildren passing through by installing at low height)

Major Specifications
General Description of Sensors
Pulse Laser Light

Near-Infrared Light (Wavelength: 905nm) IEC60825-1 Class 1

Ranging Principle

Irradiation Angle: 190°, Resolution: 0.25° (761 beams), Scan Time: 33.3ms (1,800rpm)

Detectable Distance

2~30m radius (object(s) with 10% reflectance or more)

Detection Target

Object(s) 20cm or more in all directions

Object Detection

Beam-interrupt detection utilizing Time-of-Flight (TOF) method, filtering processing and reflectors

Usual Maintenance

Cleaning of sensor screens (when dirty)
Sensors are developed by DENSO WAVE INCORPORATED.
2022(1/2)

System Image Overview (Standard Type)

ReflectorsTablet PC (Option)

Equipment Box
Post1

Obstruction
WarningSignalA

reaSensor

Signalling Relaysa2

H=750mm

SensorA

rePower Supplies
Post

Surge Protective Device(s)Connecting Terminals
Lightning Transformer(s) …

Reflectors

Maintenance Data Measurement Window (For Reference)
Set AreaLess maintenance work
compared to other companies’
products (our system only
requires exchanging of Sensors)

Area 2

Scan Data

Area 1

Easy sensor detection area
setting (free to draw
multiple detection areasusing dedicated tool)

Current Status
Time-Series Status Data

General Description of the Whole System

Basic Constituents① Sensors and Posts: 2 sets
④ Outside Cables: 1 set

Detective Height

750mm and 300mm from rail top (Standard)Internal Power Supplies

For Sensors, Heater(s), Relays in Equipment Box, and Level-Crossing-Related Equipment

Protection against Lightning
DamageLightning Transformer(s): Surge protection against Power Supplies, and Surge Protective Device(s)Maintenance Data

Possible to check Maintenance Data (Area Setting, Time Elements, Error Records, and soforth) by connecting Tablet PC(s) or similar devices, in which a dedicated tool is installed,with the Sensors via LAN (Option)

Useful Service Life

② Reflector Poles: 8 max.

③ Equipment Box: 1 set

Separate foundation work is required upon installation.

8 years for Sensors*, 7-10 years for Power Supplies, and 15 years for other items*Overhaul available on a chargeable basis (send-back).

2022(2/2)