NameDescriptionContent
MAD-500 Portable Long Range Directed Acoustic Hailing Device
MAD-500 is portable long range acoustic hailer, can be widely used to disperse illegal crowds without permanent injury, the best non-lethal tool for anti-drug, smuggling and cross border at the frontiers, broadcasts and dispersion at airports and sea ports. Also it can broadcast sounds over 1000 meters
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MAD-500 is portable long range acoustic hailer, can be widely used to disperse illegal crowds without permanent injury, the best non-lethal tool for anti-drug, smuggling and cross border at the frontiers, broadcasts and dispersion at airports and sea ports. Also it can broadcast sounds over 1000 meters
Description
The Long Range Directed Acoustic Hailer is widely used to disperse illegal crowds without permanent injury, so it is the best non-lethal tool for anti-illegal rally and invasion. It adopts unique energy transducer array and algorithm, and by ultrasonic modulation to enable broadcasts to be heard and understood clearly over long distances from hundreds of meters up to one kilometer, even across buildings.
Nowadays it has been patented and certified, and widely used by the defense forces and police for anti-drug, anti-smuggling and anti-cross border at the frontiers, anti-smuggling at sea, public security and law enforcement, broadcasts and dispersion at airports and sea ports etc.
MAD-500 is portable long range acoustic hailer, can be widely used to disperse illegal crowds without permanent injury, the best non-lethal tool for anti-drug, smuggling and cross border at the frontiers, broadcasts and dispersion at airports and sea ports. Also it can broadcast sounds over 1000 meters.
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Main Applications:
For anti-drug, anti-smuggling and anti-cross border at the frontiers, anti-smuggling at sea, public security and law enforcement, broadcasts and dispersion at airports and sea ports etc.
1. Issue prompt notifications and warnings to the people, vehicles in some far distance
2. Issue warnings for emergencies (illegal rallies, riots, unprovoked approach and invasion)
3. Issue unbearable noises to the illegal invasion ships at the territorial waters
4. To control the judicial detainees and prisoners, and to patrol
5. For communication and coordination at the site of severe natural disaster rescue
6. To prevent terrorists, hostages and organized terrorist activities
7. To prevent illegal entry or smuggling across borders
Key Technologies:
1. Energy transducer array: adopt the advanced technologies of finite element method, electromechanical coupling analysis, solid-fluid coupling analysis, build 2D mathematical model of coherent superposition, use nonlinear neural network compensation control, effectively forming the sound wave bunching angle, to achieve the best focus, orientation and penetration effect;
2. Energy transducer unit: use such new materials as piezoelectric elastic materials, NdFeB, and bending structure to achieve high sensitivity, good impact resistance, and vocal clarity;
3. Ultrasonic modulation: in contrast to the traditional loudspeakers using cylinder mechanism to stimulate air vibration, the directed acoustic device adopts ultrasonic sensor to produce highly oriented ultrasonic signal, which is demodulated to get high Directed audible sound by the nonlinear effect of ultrasonic wave in the air.
4. Digital power amplifier: energy-efficient, compact and lightweight, reliable and durable;
5. Low power requirement
6. System integration: effective coupling between various levels of the system, effective impedance matching between the amplifier and transducer, dynamic range adjustment of digital signal processing and digital power amplifier, distortion correction etc.
The Long Range Directed Acoustic Hailer is widely used to disperse illegal crowds without permanent injury, so it is the best non-lethal tool for anti-illegal rally and invasion. It adopts unique energy transducer array and algorithm, and by ultrasonic modulation to enable broadcasts to be heard and understood clearly over long distances from hundreds of meters up to one kilometer, even across buildings.
Nowadays it has been patented and certified, and widely used by the defense forces and police for anti-drug, anti-smuggling and anti-cross border at the frontiers, anti-smuggling at sea, public security and law enforcement, broadcasts and dispersion at airports and sea ports etc.
MAD-500 is portable long range acoustic hailer, can be widely used to disperse illegal crowds without permanent injury, the best non-lethal tool for anti-drug, smuggling and cross border at the frontiers, broadcasts and dispersion at airports and sea ports. Also it can broadcast sounds over 1000 meters.
For anti-drug, anti-smuggling and anti-cross border at the frontiers, anti-smuggling at sea, public security and law enforcement, broadcasts and dispersion at airports and sea ports etc.
1. Issue prompt notifications and warnings to the people, vehicles in some far distance
2. Issue warnings for emergencies (illegal rallies, riots, unprovoked approach and invasion)
3. Issue unbearable noises to the illegal invasion ships at the territorial waters
4. To control the judicial detainees and prisoners, and to patrol
5. For communication and coordination at the site of severe natural disaster rescue
6. To prevent terrorists, hostages and organized terrorist activities
7. To prevent illegal entry or smuggling across borders
Key Technologies:
1. Energy transducer array: adopt the advanced technologies of finite element method, electromechanical coupling analysis, solid-fluid coupling analysis, build 2D mathematical model of coherent superposition, use nonlinear neural network compensation control, effectively forming the sound wave bunching angle, to achieve the best focus, orientation and penetration effect;
2. Energy transducer unit: use such new materials as piezoelectric elastic materials, NdFeB, and bending structure to achieve high sensitivity, good impact resistance, and vocal clarity;
3. Ultrasonic modulation: in contrast to the traditional loudspeakers using cylinder mechanism to stimulate air vibration, the directed acoustic device adopts ultrasonic sensor to produce highly oriented ultrasonic signal, which is demodulated to get high Directed audible sound by the nonlinear effect of ultrasonic wave in the air.
4. Digital power amplifier: energy-efficient, compact and lightweight, reliable and durable;
5. Low power requirement
6. System integration: effective coupling between various levels of the system, effective impedance matching between the amplifier and transducer, dynamic range adjustment of digital signal processing and digital power amplifier, distortion correction etc.
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Traditional Powerful Speakers use one or more speakers, sound is emitted all around, not targeted, short transmission distance, low sound level, very loud to the operator behind, and ineffective in repelling crowds |
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Long Range Directional Acoustic Hailers use speaker array and amplifier, to realize forward small-angle centralized transmission of acoustic wave with the advantages of powerful forward sound, high directivity, long transmission distance, and much better broadcasting and repelling effects. |
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Features
Compact size and lightweight
Portable with built-in battery and controller
All-in-one, simple to operate
Low power consumption
safer alternative to non-lethal and kinetic measures
Compact size and lightweight
Portable with built-in battery and controller
All-in-one, simple to operate
Low power consumption
safer alternative to non-lethal and kinetic measures
Specifications
Power consumption: 80W
Max sound pressure level: 142dB @1M
Nominal beam angle: + /-15o@2kHz
Frequency range: 800-20KHz
Work time: max. 4 hours
Input voltage: DC12-30V
Built-in battery charging time: 4 hours (fast charge), 12 hours (slow charge)
Dispelling distance: 50M
Broadcasting distance: 1000M
Hand-held microphone, MP3 player
Size: 350*350*160mm
Weight: 8kg
Power consumption: 80W
Max sound pressure level: 142dB @1M
Nominal beam angle: + /-15o@2kHz
Frequency range: 800-20KHz
Work time: max. 4 hours
Input voltage: DC12-30V
Built-in battery charging time: 4 hours (fast charge), 12 hours (slow charge)
Dispelling distance: 50M
Broadcasting distance: 1000M
Hand-held microphone, MP3 player
Size: 350*350*160mm
Weight: 8kg
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