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lora wireless communication method, system, relay method and equipment

A relay device and wireless communication technology, applied in relay method and device, LORA wireless communication method, and system field, can solve the problems of inconvenient construction on site, co-frequency interference, etc., so as to avoid co-frequency interference and extend effective communication distance. Effect

Active Publication Date: 2022-02-18
ZHUHAI PILOT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a LORA wireless communication method, which can overcome problems such as co-channel interference and inconvenience in on-site construction.

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  • lora wireless communication method, system, relay method and equipment
  • lora wireless communication method, system, relay method and equipment
  • lora wireless communication method, system, relay method and equipment

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Embodiment Construction

[0045] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. :

[0046] In power wireless communication technology, LORA is a widely used technology. However, in practical applications, LORA is prone to poor signal attenuation due to obstacles, distances and other factors and cannot meet the communication requirements.

[0047] The present invention provides a LORA wireless communication system, including a host, multiple slaves and multiple relay devices, refer to figure 2 , including master 1, slave 2, and relay device 3. Host 1 is connected to relay device 3, and slave 2 is connected to relay device 3 or host 1;

[0048]Host 1 is used to broadcast data acquisition broadcast command using standard ModBus proto...

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Abstract

The invention discloses a LORA wireless communication method, which includes: a host broadcasts a data collection broadcast command; a slave or a relay device receives the data collection broadcast command sent by the host, and the slave queries the address of the slave as the address of the slave and records the device SN number and packet sequence number; the relay device records the device SN number and packet sequence number in the data collection broadcast command, reduces the survival time by one, and broadcasts the data collection broadcast command when the current channel is idle; the relay device receives the upper The first-level relay device broadcasts the data collection broadcast command, records the device SN number and packet sequence number in the data collection broadcast command, and reduces the survival time by one. The present invention can prolong the effective communication distance by setting the relay device, adopts the channel conflict detection method, needs to carry out channel monitoring, avoids multiple devices sending devices at the same time, and avoids co-frequency interference; does not need to set the slave ID number on the relay device , seamlessly add access relay equipment.

Description

technical field [0001] The invention relates to the technical field of low-power long-distance wireless communication, in particular to a LORA wireless communication method, system, relay method and equipment. Background technique [0002] LORA (Long Range) is a wireless communication technology dedicated to long-distance and low-power consumption. Compared with other communication methods, its modulation method based on spread spectrum greatly increases the communication distance. It can be widely used in various occasions for long-distance low-speed Internet of Things The field of wireless communication. Such as automatic meter reading, building automation equipment, wireless security systems, industrial monitoring and control, etc. It has the characteristics of small size, low power consumption, long transmission distance and strong anti-interference ability. [0003] However, existing conventional solutions have the following defects: [0004] In the practical applica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04B7/155
CPCH04B7/15507H04W4/06
Inventor 王德驰张民恕李立群郭玉娟
Owner ZHUHAI PILOT TECH
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