Anti-collision method for transmitting-receiving intensive narrowband wireless long-distance communication
A long-distance communication and intensive technology, applied in the direction of wireless communication, electrical components, etc., can solve the problems of easy conflict packet loss, poor timeliness, low channel utilization, etc., to avoid conflict packet loss, high timeliness, improve channel The effect of utilization
Pending Publication Date: 2021-11-02
北京太极疆泰科技发展有限公司
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[0004] Therefore, it is necessary to solve the problems of poor timeliness, low channel utilization, a
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0030] refer to figure 1 , the present invention provides an anti-collision method for transceiver-intensive narrowband wireless long-distance communication, comprising the following steps:
[0031] When the node device needs to send data, the following steps will be performed first;
[0032] Step 1. First set the periodic clock of a node device;
[0033] The periodic clock is set to avoid that when multiple node devices enable channel activation detection at the same time, and detect that multiple channels are inactive at the same time, then start data transmission at the same time, resulting in conflicts;
[0034] Step 2, when the periodic clock expires, the node...
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The invention relates to an anti-collision method for receiving and transmitting intensive narrowband wireless remote communication, which is characterized by comprising the following steps of: 1, setting a periodic clock of node equipment; 2, when the periodic clock is up, starting channel activation detection; 3, judging whether the channel state is activated or not; 4, judging whether the instruction is a synchronization instruction; 5, generating a random number as a sending sequence number of the round; step 6, calculating channel activation detection time of the node equipment; and 7, updating the period timer, and returning to the step 1. According to the method, the periodic clock is set, the channel activation detection is performed in a time-sharing manner, the channel state is judged, and then the data is sent, so that in a wireless long-distance communication system, multi-node intensive equipment can send the data in order, the channel utilization rate is improved, conflict packet loss is avoided, and high timeliness can still be achieved when a few nodes need to send the data.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to an anti-collision method for transceiver-intensive narrowband wireless long-distance communication. Background technique [0002] At present, narrowband communication mostly adopts point-to-point communication structure or star network structure; point-to-point communication mostly adopts master-slave response mode communication, generally the master device sends the query command and waits for the slave device to respond to the data, and the slave device receives the query command sent by the master device Respond to the data afterward; the star network structure includes a gateway device and multiple node devices, the gateway device is the master device, and the multiple node devices are all slave devices. The gateway device sends the query command and waits for the node device to respond to the data, and the node device receives The query command sent by the gateway devic...
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Login to View More IPC IPC(8): H04W72/08
CPCH04W72/541
Inventor 赵林周长军隋超杨辉
Owner 北京太极疆泰科技发展有限公司