LoPy: Difference between revisions
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==[[Objective]]== | ==[[Objective]]== | ||
Our aim is to test the lora signal for LoPy micro-controller with different bandwidths. We performed both for line-of-sight test and the test with obstacles (buildings and trees). | Our aim is to test the lora signal for LoPy micro-controller with different bandwidths. We performed both for line-of-sight test and the test with obstacles (buildings and trees). The tests are the outdoor test with good weather condition. The test with bad weather condition will be our future work. | ||
==[[Testing Scenarios]]== | |||
Two LoPy micro-controllers are used. One sends a signal and other waits for a signal before replying back. The random sleep is used to avoid jamming at nodes, which can cause the packet lost. For all the test, one node is stationary node while another moves with the human-walking speed. | |||
==[[Line-of-sight experiment]]== | |||
medium range: bandwidth=LoRa.BW_250KHZ,coding_rate=LoRa.CODING_4_5,sf=7 | |||
fast short range: bandwidth=LoRa.BW_500KHZ,coding_rate=LoRa.CODING_4_5,sf=7 | |||
slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=9 | |||
very slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=12 | |||
==[[Building and trees experiment]]== | |||
medium range: bandwidth=LoRa.BW_250KHZ,coding_rate=LoRa.CODING_4_5,sf=7 | |||
fast short range: bandwidth=LoRa.BW_500KHZ,coding_rate=LoRa.CODING_4_5,sf=7 | |||
slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=9 | |||
very slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=12 | |||
Revision as of 10:04, 10 March 2017
Objective
Our aim is to test the lora signal for LoPy micro-controller with different bandwidths. We performed both for line-of-sight test and the test with obstacles (buildings and trees). The tests are the outdoor test with good weather condition. The test with bad weather condition will be our future work.
Testing Scenarios
Two LoPy micro-controllers are used. One sends a signal and other waits for a signal before replying back. The random sleep is used to avoid jamming at nodes, which can cause the packet lost. For all the test, one node is stationary node while another moves with the human-walking speed.
Line-of-sight experiment
medium range: bandwidth=LoRa.BW_250KHZ,coding_rate=LoRa.CODING_4_5,sf=7 fast short range: bandwidth=LoRa.BW_500KHZ,coding_rate=LoRa.CODING_4_5,sf=7 slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=9 very slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=12
Building and trees experiment
medium range: bandwidth=LoRa.BW_250KHZ,coding_rate=LoRa.CODING_4_5,sf=7 fast short range: bandwidth=LoRa.BW_500KHZ,coding_rate=LoRa.CODING_4_5,sf=7 slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=9 very slow long range: bandwidth=LoRa.BW_125KHZ,coding_rate=LoRa.CODING_4_8,sf=12