Agrysonar is an active-passive sonar system integrating a powerful transmitter, a microphone array and a camera into a compact portable package. AGRY-Sonar 2.0 is capable of transmitting powerful ultrasonic signals and receiving echoes with an array of 3 microphones. AGRY-Sonar 2.0's onboard processor enables using sophisticated signals, processing the echoes and using programmable sonar sequences. The system allows both wireless and USB communication. AGRY-Sonar 2.0 can work autonomously or guided through a GUI on a PC platform. In addition to sonar sensing, it has an FPV camera enabling viewing the scanned target.

System Details

• Microphone:                                      3 Channels
• Ultrasonic Speaker:                          1 Channel
• Camera:                                            1 Channel

AGRY-Sonar 2.0

Microphone Channels

• ADC Resolution:                                         12 bit
   
• Programmable Sample Rate per Channel:
  3 Channels                                     Up to 1 MHz
  2 Channels                                  Up to 1.5 MHz
  1 Channel                                       Up to 3 MHz
   
• Input Sensitivity:
  Without Amp                                           -40 dBV
  With Amp Filter 1 (0.2÷170 kHz)             75 dBV
  With Amp Filter 2 (10÷170 kHz)              81 dBV

Speaker Channel

• DAC Resolution:                                         16 bit
   
• Programmable Sample Rate:        Up to 1.4 MHz
   
• Maximal Output Power:                              100 W
   
• Frequency Range:                    266 Hz ÷ 140 kHz

Camera Channel

• Frame Rate:                                               30 fps
   
• Image Resolution:                      1920 × 1080 px
   
• Image Sensor Resolution:                         2 Mpx
   
• Viewing Angle (V):                                        75º
  Viewing Angle (H):                                        75º

Communication

• WiFi 802.11a/b/g/n                                65 Mbps
   
• USB2                                                    480 Mbps

Dimensions

• Dimensions:                        126 × 130 × 150 mm
   
• Weight:                                                
   Net weight                                                    1 kg
   Weight  batteries                                     1.64 kg
   
• Custom built mechanical connectors

Power Supply

• External:
  Voltage                                                 12-15 Volt
  Current Rating                                             7 A
   
• Batteries:                                                
  Patona Rechargeable Battery NP-F970        2 pc
  Capacity                                                    90 Whr
  Supply Voltage                                          15 Volt
   
• Power Consumption:
  Static                                                            11 W
  Operational*                                                 20 W
  Operational Time Period*                         4 hours

* 3.3% Duty Cycle, 10 ms Long Sonar Pulse at Max Output every 0.3 s.

Performance

• Effective Range                                            10 m
• Sonar Angle                                                  60º

Software

Agry-Sonar is fully programmable system with open architecture. The sensing system uses Python 3.9 with a library of API's operating the hardware. The user can control the the transmission signals, signal processing and signal transmission. Agry-Sonar 2.0 has a default operating app for sonaring. The collected echoes are processed by a Machine Learning and the scan results are stored and presented in a user friendly fashion.

GUI

GUI tasks:

• Enable acquisition
   
• Configuration of acquisition setup
   
• Opening of former acquisition sessions
   
• Summarizing the current session
   
• Presenting ML evaluation                     

Scan Result:

• Time Series of Mics
   
• Image
   
• Spectograms of Mics