Portable Sound Camera
Portable Sound Camera (SeeSV-S205 / S205W)
After pressing the power button, the LED ring around optical camera in front of the sound camera changes its color to orange in about 30 seconds. The orange light of the LED is a sign that sound camera is initializing and initialization takes 30 seconds. After 30 seconds the LED light turns green which means that the camera is running, when LED light is green, the communication between sound camera and software will be established. If the camera encounters any of the following situations, you need to contact the support for troubleshooting: The LED does not turn orange which means the camera is not initializing; the LED stays orange after 30 seconds and does not turn green which means camera is stuck in initialization and does not run; the LED blinks between orange and green which means there is a problem in transition from initializing to running.
Sound camera uses high definition MEMS microphones which are not water-resistant, and the sound camera itself is also not built waterproof, this means using sound camera under the rain or flow of water will cause malfunctioning or destruction of microphones and sound camera. If rain drops impinge on the sound camera, it also may introduce noise that will interfere with your measurements. It is possible to cover sound camera by acoustically transparent (thin, light) waterproof foil in order not to cause harm to the device, but then you risk additional noise generated by the foil itself or contact of the foil with body of the sound camera. In general, use the sound camera under the recommended operating condition for temperature (-20°C to 50°C) and Humidity (10% to 85% RH).
In the wired version of the sound camera SeeSV-S205, in order to establish connection between sound camera and laptop, a LAN cable is required. This version of the sound camera uses POE controller as a hub to connect sound camera, AC/DC adaptor, and laptop together. Furthermore, to use this model, the POE controller should be always connected to AC/DC adaptor in order to work. In the wireless version of the sound camera SeeSV-S205W, the connection between sound camera and laptop can be established through either wireless connection or LAN cable directly connected to a laptop. The Wi-Fi model S205W does not use a POE controller to deliver power, but built-in battery pack, which lets you operate wirelessly and allows you to charge the battery simply by connecting AC/DC adaptor directly to the sound camera body.
When connecting LEMO plug to the socket, align the red dot on the silver LEMO plug to the one on the silver LEMO socket. Since LEMO has a self-latching system, it allows the connector to be mated by simply pushing the plug axially into the socket until a simple click sound is heard. The advantage of the LEMO system is that once latched, the connection cannot be broken by pulling out the cable or other components except for outer release sleeve. When removing the connector, grab the LEMO plug by the outer release sleeve (the one with multiple small holes on it) and disengage the connector by a single axial pull. First, the latches will be disengaged and then the plug will pop out from the socket. Pulling the plug from any other part of the LEMO cable and exerting excessive force might result in breaking the plug and socket.
In order to turn on the sound camera, you need to press the power button for 3 seconds, and then the small light in the back of the camera will turn on. A simple push on the power button does not turn on the sound camera.
To check the firmware version on the software, first connect the sound camera to the laptop. Then in the real-time software move to the second page of the setting alone the right edge and check the firmware version in the bottom part of the panel.
In order to update the firmware, sound camera must be connected to the software. Then go to the second page of the setting alone the right edge on the real-time software, and click on the update firmware near the bottom of the page. A new window will open which asks to close the software, press ok. On the next window, under the system tab, you can see the type of sound camera that is selected automatically. The pass LED button in front of IP Address turns green. Under the firmware tab click on the update and if any update is available, the firmware will be updated.
The difference between real-time and post-processing software is between the type of functions and accessibility they provide to analyze the data. Real-time software has three main functions: to view the beamforming data in real-time, to record the data, and to replay the previously measured data. Before starting to record the data using real-time software, all the setting can be adjusted accordingly. After the end of recording when the data is not replayed all of the options in setting are accessible. In fact, the frequency range cannot be modified for post processing analysis using real-time software, however threshold, image range, and image average can still be changed. In the other hand, post-processing software provides a platform to better analyze the recorded data by offering the ability to change frequency range, view time-frequency information through spectrogram, and more.
When you connect sound camera to the laptop for the first time using LAN cable, if you do not configure the IP address correctly, the connection will not be established and video cannot be viewed from software. When the connection between sound camera and software is established two buttons located in the bottom right corner of the real-time software, called “camera” and “DAQ” will turn orange. To configure the IP address, you need to allocate a static IP to the Ethernet connection from sound camera. Open “Network and Sharing Center” (e.g. by hitting the windows button on your keyboard and typing ”Network and Sharing Centre”) and in the left side panel click on “Change adaptor settings”. Then find the icon with Ethernet socket (usually called Ethernet, LAN, or Local Area Network). Note if the icon has a red cross, it means you have not connected the LAN properly. Open the “properties” for the selected icon and in the Networking tab select “Internet Protocol Version 4 (TCP/IPv4)” and open its “properties”. In the new window, change the values for IP address: 192.168.0.X (X can take values between 2 to 253, except for 6,10, and 90) Subnet mask: 255.255.255.0 Default gateway: 192.168.0.1 Then confirm the entries by clicking OK and closing all the windows, now the communication should be established. In case of wireless communication, just connect your laptop to sound camera’s Wi-Fi network, and put in the password provided to you with the purchased sound camera. If you are using different static IP address with your Wi-Fi adaptor, you need to change that to the recommended IP address for sound camera, as mentioned above. To change the IP address for wireless version, follow the same procedure as wired version, but now choose the icon with Wi-Fi instead of the icon with Ethernet socket. In case you are not using static IP and your setting in “Internet Protocol Version 4 (TCP/IPv4)” is “obtain an IP address automatically” then you can also keep this setting for wireless communication and the connection should be established automatically.
If sound camera does not establish any connection right after you install the real-time software; considering your IP configuration is correct, the error can be due to not restarting your laptop. Restart your laptop and the software again, then connects the sound camera.
When the Wi-Fi module in the sound camera is turned on, multiple computers can connect to the Wi-Fi router but only one computer can establish the communication and receive the data. In such a condition make sure other devices have not previously established connection with the sound camera through Wi-Fi or LAN.
If the video is blurred, first check if the lens is free of dust, fingerprints, and scratches. Then clean it if it is possible or consult with us for replacement of the lens in case of a damage. Supposing the lens is clean and free of scratches, it means the optical camera is out of focus. You can change the focus of the camera by rotating the optical camera until the video is sharp and in focus. Keep in mind that after you change the focus of the optical camera, you need to do the image calibration section in the real-time software again.
If you experience a bias error in the visualization of beamforming map, i.e. when the map is not adjusted to the exact position of the source, this means you need to calibrate the image. For image calibration, use an identifiable source playing e.g. a 4 kHz frequency tone (you can use other frequencies as long as it’s between recommended range of 2-10 kHz). Then relocate the center of beamforming map to the actual sound source manually or using Auto Cal button. For using auto calibration, press the “Auto Cal” button first and then drag the center of the beampower map to the center of the physical sound source. For using the manual calibration, change x and y values based on the exact location of the source.
When you use sound camera in the recording mode, the real-time software records the file in TDMS format. You can open this file in real-time and post processing software, or in NI LABVIEW. TDMS is short for Technical Data Management Streaming, that is a format defined by National Instruments for saving well-documented measurement data. For further reviewing the video in a standard video viewer you can save it in AVI format. To do so, change the real-time software mode to review by clicking on the orange button (record mode) on the left top so it turns blue (review mode). Then open the appropriate TDMS file using the “open data file” button, the fourth button after switch mode. The button on the right side of “open data” is “save data to video clip” and it saves your data in AVI format to a default folder.