Compared with the traditional sound amplification system, the long-distance directional acoustic wave transmitter is a revolutionary new technology. It has very long-range shooting power, can clearly transmit sound information hundreds of meters away, even through some buildings; it has a strong deterrent force, can force the audience to leave the forbidden area automatically; it has a precise directional ability, can aim at a certain angle to emit unbearable stimulating sound waves. In other ways, it's not uncomfortable.
Key technologies:
1. Transducer arrays: A two-dimensional coherent superposition mathematical model is established by using advanced techniques such as finite element method, electromechanical coupling analysis, solid-fluid coupling analysis and so on. Nonlinear compensation control based on neural network is adopted to effectively form the acoustic cluster angle and achieve the best focusing, orientation and penetration effect.
2. Transducer unit: using piezoelectric elastic materials, neodymium iron boron and other new materials, bending structure, high sensitivity, good impact resistance, clear sound quality;
3. Ultrasound modulation: It is totally different from the traditional loudspeaker using barrel mechanism to stimulate air vibration, but the ultrasonic sensor produces high directional ultrasound signal. According to the non-linear role of ultrasound in the air, demodulation produces high directional audible sound.
4. Digital power amplification: high efficiency, energy saving, light weight, reliable and durable;
5. Economical power supply;
6. System integration: including effective coupling between all levels of the system, effective impedance matching between amplifier and transducer, dynamic range adjustment of digital signal processing and digital power amplification, distortion correction, etc.
Innovative examples:
1. Approximate square root algorithm and other algorithms, such as DSB, SSB, square root, double integral and square root, truncated DSB, are used for signal processing, and signal compensation is carried out by means of distortion correction, model equalization and special sound effect processing.
2. Improve the interval pulse modulation to reduce the switching frequency requirement of power amplifier and improve the amplification efficiency.
3. Impedance Matching Network Equalizing Carrier Frequency and Transducer Electromechanical Coupling Frequency
Functional Characteristics of CDYX-1000
1. Express clearly the intention of the people, vehicles, prompt notification and warning in the distance.
2. Warning of emergencies (illegal assembly, disturbance, unreasonable approach, invasion).
3. To surrender personnel by making intolerable noise and sound waves to ships illegally invading territorial waters.
4. Used for judicial detention, prison personnel control and protection patrols.
5. Communication and coordination on major natural disaster rescue sites.
6. Preventing terrorists, hostage-taking and organized terrorist activities.
7. Prevent smuggling along the coastal border and maintain harmony and stability along the border.
Technical parameters of CDYX-1000
Maximum sound pressure level 151 dB/1 M
Maximum Sound Pressure Level 120 dB/1 m in Low-Grade Mode
Nominal Beam Degree +/-15/2kHz
Power Consumption 240 Watts (General): 480 Watts (Peak)
Input power supply 90-240V-50-60Hz DC 12-30V
Weight transmitter weight: 29.5kg system weight: 32kg
Size: Launcher Diameter: 88cm Thickness: 17cm
