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Which Wireless Ad Hoc MESH Network Radio Has the Best Performance in Robot Dog?

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Introduction

Base on the Hangzhou ** Intelligent Technology Company select the wireless ad hoc network radio to use for the robot dog test report.


user

User

Hangzhou ** Intelligent Technology Company

Energy

Market Segment

Robot Dog and UGV

1、Test Background

1.1      Test location

Hangzhou ** Intelligent Technology Company

1.2      Testing time

2023.10.23

1.3      Testing Purposes

The purpose of this test is mainly to test the wireless transmission effect of three wireless ad hoc network radio stations, including IWAVE’S Communications, Chengdu ** company, and Beijing**company, under LOS(Line-of-sight) conditions and NLOS (none-line-of-sight) conditions, to simulate and test the actual application scenarios between the Robot dog and the operator.

1.4      Test scenario selection

According to the actual scenario, set the antenna height of the receiving end to 1.5 meters and the height of the Robot dog end to 0.5-0.6 meters. Use the packet filling tool at the transmitting end (simulated Robot dog end) to inject packets into the laptop computer at the receiving end (simulated controller end).

The test scenarios include outdoor scenes and indoor scenes.

The outdoor scene also includes a 0.5 km line-of-sight test point, a 1.1 km line-of-sight test point, a 1.15 km non-line-of-sight test point (large corner), a 1.2 km non-line-of-sight test point (where the road ends after turning).

For the indoor scene, two locations with relatively serious obstructions were selected: the entrance to the stairway and the warehouse.

NO.

Testing scenarios

Test point

Remark

1

Outdoor scene test

Point 1: 0.5 km LOS test point

2

Point 2: 1.1 km LOS test point

3

Point 3: 1.15 km non-line-of-sight test point

4

Point 4: 1.2 km non-line-of-sight test point

5

Indoor scene test

Point 1: Safety passage stairway

6

Point 2: Warehouse

2、Test Scenarios ---Outdoor Scene

2. Outdoor Scene Test

2.1      Test Method Description

The test scene was chosen to be on the road directly in front of the park where Hangzhou ** Intelligent Technology Company is located. The receiving end (simulated controller end) antenna was set up at a height of about 1.5meter, and two engineers rode electric bicycles to simulate the transmitter end (simulated Robot dog end).) , the actual height of the transmitter is about 0.5 meter; see the figure below:

 

图片 1

The receiving end uses a wireless ad hoc network radio + a laptop and runs the IPerf software to collect traffic statistics. The transmitter uses a wireless ad hoc network radio + a laptop and runs the IPerf software to fill packets at different rates. Test the average transmission bandwidth of four location points respectively ;

Manufacturer equipment information:

NO.

Company

Frequency (MHz)

Power (W)

Antenna gain (dbi)

Remark

1

IWAVE Communications

806-826 MHz

2

2

2

Chengdu**company

1427-1447Mhz

10

4/5

3

Beijing***company

566-606 MHz

2

6

3、Three Comapny's Progress and Result

3.1      IWAVE Communication Test Process and Result

Test on-site environment setup:

1-1

Ø  Data packet filling situation at point 1: the maximum packet filling rate is 17.2Mbps

图片 4

Ø  Point 2 data packet filling situation: the maximum packet filling rate is 15.0Mbps

图片 5

Ø  Data packet filling situation at point 3 : the maximum packet filling rate is 10.9 Mbps

图片 6

Ø  Point 4 data packet filling situation: the maximum packet filling rate is 1.42Mbps

图片 7

Ø  Connection review: As shown in the figure below, the entire connection is normal. After the point 3, 2-3 ping packets are lost. Point 4 can still be connected normally, and the low rate and stable packet filling point can be maintained:

 

图片8

3.2  Chengdu** company Test Progress and Result

Test on-site environment setup:

1-2

Ø  Data packet filling situation at point 1: the maximum packet filling rate is 43.2Mbps.

Ø  Point 2 data packet filling situation: the maximum packet filling rate is 14.4Mbps.

Ø  Data packet filling situation at point 3: the maximum packet filling rate is 2.51Mbps and 2.01Mbps;

 

Ø  Data packet filling situation at point 4: The wireless is interrupted and the packet sending and receiving test cannot be carried out;

Ø  Connection review: As shown below, after the third point, the device wireless is interrupted (green line indicates normal wireless, red indicates interruption):

 

1-3

3.3  Beijing *** company Test Process and Result

Test on-site environment setup:

1-4

Ø  Data packet filling situation at point 1: the maximum packet filling rate is 44.9Mbps.

Ø  Point 2 data packet filling situation: the maximum packet filling rate is 10.9Mbps.