1. Time: September 20,
2023 2. Location: A coast guard
in Dalian City, Liaoning Province 3. Organizer: Beijing Wanlan Technology Co., Ltd. Mr. Wang 4
. Test content:
"single, multi-hop" communication test
in the extreme environment of police ships 5
Equipment preparation: 5 sets of Wanlan Technology ad hoc network equipment, 1 notebook, 1 camera.
Division of labor: The user is responsible for the selection of the test point of the on-site headquarters, and the Wanlan engineer is responsible for cooperating with the test.
Basic system settings:
Frequency: 1400MHz;
Bandwidth: 10MHz;
Transmit power: 4W, 10W, 20W;
video: 720P;
Other special configurations: None.
6. Test process:
The schematic diagram of the one-point placement of the "multi-hop" communication test
test environment is shown in the figure above, and three devices are set up at the test points to the positions shown in the figure
Test time: 30 minutes to complete the setup.
Test results: Smooth images and clear speech. The signal covers the entire hull of the ship.
7. Precautions:All testers are to obey orders and follow commands.
After selecting the test point, you need to test each communication device one by one before moving forward.
Test password: *No.*No.I'm *.,Now the test content is ***.,The current distance is *.m.,Please answer when you hear it.,Over.。 * number received, sound clear (not clear), done.
8. Test data
test registration form (1).
Test site | A coast guard in Dalian | Test time | 2023.9.20 |
| Hull area |
| Lead the team | Ginseng |
| Duration of the test | 60 minutes | Measured area | The signal completely covers the entire ship |
| Test items | "Multi-hop" communication testing |
| serial number | Communication Effects | illustrate | remark |
| 1 | good | The starting point of the test, the ship control room |
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| 2 | good | The first jump, the middle of the 3rd floor of the ship |
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| 3 | good | The second jump, the tail of the 4th floor of the boat |
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| outcome | Advantages: Minimal set-up time and simple equipment operation. The image is smooth and the voice is clear. |
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9. Test conclusionThe
test work of various data was successfully completed this time, and the conclusions are as follows:
1. The system can realize multi-channel high-definition video transmission and data transmission in the case of "1 hop or multi-hop" relay transmission, and two-way voice communication can be realized.
2. The entire hull needs 2 hops to fully cover the communication signal.
3. The image can be completely connected to the user's existing equipment and send the image back to the command center.
10. Measured photos
