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High power directional speaker
    • 59% reduction in accidents in tunnels

      Road Tunnel residence situation Voice warning system

      High-Powered Acoustic Hailing Device

      Highly directional speakers for tunnels that realize clear voice broadcasting inside the tunnel

      Intelligent system analyzes speed information in tunnel and warns about forward situation



      It is the world's first road tunnel emergency voice guidance system that combines tunnel loudspeakers specially developed for clear voice alerting and guidance in road tunnels and intelligent system that recognizes the situation ahead of the tunnel by analyzing speed.

    • High Directional Speaker for Tunnel Only

        Spatial Directivity of High Directional Speaker for Tunnel
        Spatial Directivity of High Directional Speaker for Tunnel
        Tunnel dedicated loudspeakers are based on high-power directional loudspeaker technology and patented technology to reduce reverberation

    • Intelligence Analysis System

        Real-time analysis and determination
        Real-time analysis and determination
        It acquires and analyzes the data of the speed sensor installed in the tunnel in real time to discriminate the traffic situation (congestion, slowness) and selects / sends the voice warning broadcasting according to the situation.

    • Product Features

        Real-time detection of traffic situation (congestion, slowness)
        Announcement of dangerous situation in the rear car
        Outstanding voice understanding within the tunnel
        At a speed of 100 km or more,
        Remote control and monitoring, automatic manual operation
        Seamless installation configuration for existing and new tunnels

    • Operational Scenario

      The driver is prompt voice information to prevent collisions and additional accidents

        First: Public Broadcasting (warning of drowsy driving, wear of safety belts, prohibition of lane change, etc.)
        Second: Provide variable voice information on the traffic situation (slowing / congestion) ahead of the tunnel.
        Step 1: Measure the speed of the vehicle from the speed sensor and generate a signal if the speed is below a certain speed.
        Step 2: Broadcast from the speakers
        Step 3: Recognize the broadcast in the vehicle
        Operational Scenario

    • System configuration

      Installation completed in a day only

        System configuration

    • Product Specifications

        Speaker & AMP
        Speaker DIXXEN-TNT100 Mirroring Technology Horn Type
        Compression Driver 150W, 500h ~ 7Khz
        AMP DIXXEN-DTS-S 1Ch, 200W Sound Wave Front Synchronization Technology
        dB 107dB(2.83V@1m)
        Operating Temperature 0 to 40deg C
        Radar Device
        Speed Detection Range 300km/h(187 m/h)
        Vehicle Detection Range About 150m
        Azimuth Field of View +/- 12deg
        Elevation Field of View +/- 6deg
        Speed Accuracy; Interval typ. <+/-0.28m/sec; +/-0.1m/sec to +/- 83.34m/sec
        Refresh Time 16.7 msec(60 Count/sec)
        Operating Temperature -15 to 60deg C
        Frequency Band 24.125GHz(K Band)

    • To improve vulnerable sections of accidents

      Accidental local voice warning system

      High-Powered Acoustic Hailing Device

      Generate wide and long audible range with multiple directional speakers with excellent speech clarity

      Intelligent system analyzes speed information and warns about forward situation



      The system creates a wide and long audible area in the accident-stricken areas such as road geometry failure, excessive traffic volume, condensation and foggy areas, and the system warns by voice that the driver can recognize the danger immediately and prevent accidents There is.

    • Directional speaker with excellent speech intelligibility

        Many directional loudspeakers with good speech intelligibility are used to create a wide, long audible area in front of the accidental area.
        Frequency Characteristics of Directional Speakers
        Frequency Characteristics of Directional Speakers

    • Intelligence Analysis System

        In order to prevent the problem of vehicle traffic, the data of the speed sensor installed in the safety zone is acquired and analyzed in real time to discriminate the traffic situation (congestion, slowness) and select the voice warning broadcasting according to the situation.
        Real-time analysis and determination
        Real-time analysis and determination

    • Product Features

        Real-time detection of traffic situation (congestion, slowness)
        Announcement of dangerous situation in the rear car
        Outstanding voice understanding in the audible range
        At a speed of 100 km or more,
        Remote control and monitoring, automatic manual operation
        Broadcast considering noise complaints

    • Operational Scenario

      The driver is prompt voice information to prevent collisions and additional accidents

        First: Public Broadcasting (warning of drowsy driving, wear of safety belts, prohibition of lane change, etc.)
        Second: Variable voice information for traffic situation (slow / congested) in front
        Step 1: Measure the speed of the vehicle from the speed sensor and generate a signal if the speed is below a certain speed.
        Step 2: Broadcast from the speakers
        Step 3: Recognize the broadcast in the vehicle
        Operational Scenario

    • System configuration

        System configuration

    • Operational effect

        Deliver large, clear voice alerts in the audible area

        Listen to a uniform and clear voice beep in the audible range
        Noise in the opposite lane and other areas decreases

        Picture of a beeping listening image
        Picture of a beeping listening image

    • Keeping the safety of the transportation weak

      Walking voice announcement system

      Attention to risk exposure by sensing signal light and pedestrian position

      Specified directional speaker as standard for 2010 traffic signal controller



      The pedestrian voice guidance system is designed to prevent traffic accidents by guiding pedestrians to cross the pedestrian '

    • Pedestrian Traffic Accidents

        Of the 27,843 deaths from traffic accidents during the past five years, 10,095 (36.3%) were killed during a car accident
        66.7% of traffic accident deaths during walking while crossing roads such as crosswalk and overpass
        In the child protection zone (school zone), 3,047 accidents occurred in the last 5 years, 37 people died, 3,190 injuries
        Crosswalk traffic accident is twice as much as unauthorized crosswalk traffic accident
        Crossing Traffic Accident (Road Traffic Authority)
        Crossing Traffic Accident (Road Traffic Authority)

    • Product Features

        Detecting walking violation using infrared rays
        Schedule management function such as voice size by day, time zone
        Interoperable with voice guidance device for the visually impaired
        Saves the cost of civil works such as excavation using one direction sensor
        Minimized Noise with Supersymmetric Speaker
        Meet the latest National Police Standards Guide specification
            - ‘Standard Guidance for Walking Signal Assist Aids‘(2014. July National Police Agency)

    • Operational Scenario

      - Operating Procedures -

      1. Checking gait status
      2. Pedestrian violation detection in red signal
      3. The corresponding voice output in the direction of violation detection
      4. Transit voice output in case of walking green signal

    • System configuration

      Satisfies the latest National Police Agency standard guidelines specification

        System configuration

    • Operational effect

        Crosswalk pedestrian accident 53% reduction (July 30, 2014 Joongang Daily)
        Improvement of pedestrian safety frustration and citizens' awareness of traffic law compliance
        Preventing accidents at the crosswalk area at low cost
        Prevention of accidents in crosswalks due to the opening of vehicles
        Stop line violation enforcement regulations guide
        Various information display guidance function

    • For rapid evacuation in the fire

      Evacuation Directional Speaker

      Emergency Lead Ultra Directional Speaker

      Quickly evacuate in complex modern buildings
      Guided evacuation for visually impaired people dependent on hearing



      It is a device that induces sound evacuation together with a guide light in a situation where escape route due to smoke is difficult to grasp when a fire occurs.
      Visually impaired or elderly people can be quickly escorted.

    • Super directional speaker with excellent speech intelligibility

        The highly directional, super-directional speaker not only recognizes the direction of the sound accurately, but also attenuates sound farther away.
        Also, because of its excellent voice intelligibility, the evacuee can receive accurate directions even in a noisy environment such as a fire.
        rection of supergiant speaker image
        rection of supergiant speaker

    • Product Features

        It is easy to install because it can be fastened to existing evacuation light.
        Directed directional speaker with distance of 20M or more guides evacuation direction
        Setting the announcement range by angle adjustment
        Sufficient voice transmission with small installation
        Used for general broadcasting
        Evacuation directional speaker prototype image
        Evacuation directional speaker prototype

    • Operational Scenario

      Reference evacuation guidance device which is dependent on existing visual information

       Reference evacuation guidance device which is dependent on existing visual information

      Evacuate through not only sight but also sound (voice, etc.)

      Evacuate through not only sight but also sound (voice, etc.)

    • Product Design

        Product design image
        * This product is under development and its shape and function may be changed.

    • Using directional speakers

      Bus Stop Safety Broadcasting System

      Broadcasting System at the bus stop

      Sensors recognize incoming buses and provide safety broadcasts to stop passengers
      Directional speaker with excellent voice clarity and no noise around the bus station



      It is a broadcasting system that guides the passengers to enter the vehicle with directional speakers when the vehicle enters the bus stop lane. In conjunction with the Bus Information System (BIS), it not only informs the contents of the BIS broadcasting but also informs the entering situation of the stopping vehicle.

    • Bus stop announcement for citizen's safety

        The collision accident caused by the side mirror of the low-floor bus introduced for the transportation weak is increasing, and it is difficult to recognize the bus entering by the use of the smart phone, and the introduction of the broadcasting system for safety accident prevention is required.
        A normal speaker can hear a loud sound in the area adjacent to the speaker, but it also spreads to areas outside the stop, resulting in unnecessary noise.
        Directional speakers have excellent clarity and directionality so that announcements can only be heard in certain areas.
        Bus stop image

    • Product Features

        Installed and operated as an existing BIS or as a separate system
        Directed to a directional speaker with a distance of 50M or more.
        There is no unnecessary noise except the bus stop place (No noise complaint)
        Sufficient voice transmission with small installation
        Used for public service announcement

    • Operational Scenario

      < Broadcast BIS contents on a regular basis >

      Broadcast BIS contents on a regular basis image

       If the bus is adjacent, the bus entry warning broadcast image

    • System configuration

      ① Sensor: recognition of bus entry through sensor
      ② Directional speaker (position changeable)
      ③ Signal control section (enclosure): Directional speaker dedicated amplifier installation
                    Receive signals through the sensor and broadcast


Nuriplan Pangyo Office : Pangyo Inovalley B-dong. 201, 253, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea
Headquarters and factories : 191, Daegot-ro 202beon-gil, Daegot-myeon, Gimpo-si, Gyeonggi-do, Korea
Tel:031-997-9097 / Fax:031-981-9097
Copyrightⓒ2017 Nuriplan ALL Rights Reserved. nuriplan@nuriplan.com
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