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Sensor network, safety emergency system and frequency band allocation system

A sensor network and emergency system technology, applied in safety emergency systems and frequency band allocation, sensor network field, can solve the problems of lack of reasonable allocation of spectrum resources, communication interference, etc., to achieve uniform distribution and ensure robustness

Inactive Publication Date: 2019-03-01
ZDST COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the embodiment of the present invention provides a sensor network, a safety emergency system and a frequency band allocation method, which solves the technical problem that the existing Internet of Things sensor network lacks reasonable allocation of spectrum resources, resulting in interference in communication, and realizes network frequency band allocation. Evenly distributed to ensure the robustness of wireless network communication

Method used

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  • Sensor network, safety emergency system and frequency band allocation system
  • Sensor network, safety emergency system and frequency band allocation system
  • Sensor network, safety emergency system and frequency band allocation system

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Embodiment 1

[0045] See figure 2 , figure 2 It is a schematic structural diagram of a sensor network provided by an embodiment of the present invention; wherein, the sensor network is applied to a safety emergency system, the safety emergency system includes: a cloud server and an emergency management terminal, and the sensor network is densely distributed with intelligent dynamic spectrum Sensor Networks;

[0046] Such as figure 2 As shown, the sensor network 100 includes a plurality of subnets 10 and a core network 20, each of the subnets 10 includes: a sensor node 11 and a gateway 12, and the gateways 12 of the plurality of subnets 10 form a core network in a MESH networking mode, The core network is a gateway network. The sub-network and the core network are combined in a hybrid networking manner, and the operating frequency band or frequency hopping map of the entire network is performed after integration of the gateway frequency band information obtained by the hybrid networking mann...

Embodiment 2

[0065] See Figure 4 , Figure 4 It is a schematic structural diagram of a safety emergency system provided by an embodiment of the present invention; wherein the safety emergency system applies the sensor network described in Embodiment 1, and the sensor network includes: sensor nodes and gateways;

[0066] Such as Figure 4 As shown, the safety emergency system 200 includes a cloud server 210 and an emergency management terminal 220. The safety emergency system 200 is applied to the sensor network, and the sensor network includes a gateway 11 and a sensor node 12. Each gateway 11 corresponds to multiple sensor nodes 12, the gateway 11 is connected to the Internet, the cloud server 210 is connected to the Internet, the emergency management terminal 220 is connected to the Internet, and the cloud server 210 The emergency management terminal 220 is connected to the Internet.

[0067] Specifically, the gateway 11 and multiple sensor nodes 12 connected to the gateway form a subnet, wh...

Embodiment 3

[0085] See Image 6 , Image 6 It is a schematic flowchart of a frequency band allocation method provided by an embodiment of the present invention; the frequency band allocation method is applied to the sensor network of the above-mentioned embodiment, the sensor network is applied to a security emergency system, and the sensor network includes: multiple subnets Each of the subnets includes a gateway and a plurality of sensor nodes, the plurality of sensor nodes are respectively connected to the gateway, the sensor nodes are used to obtain environmental data, and the gateway is used for environmental data transmission and network management; The core network is formed by the networking of the gateways of the subnets, and the core network uses a coordination algorithm to evenly distribute the operating frequency bands of each subnet to the entire frequency band.

[0086] Such as Image 6 As shown, the frequency band allocation method includes:

[0087] Step S10: Establish a topolog...

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Abstract

The invention relates to the technical field of wireless communication, and discloses a sensor network, a safety emergency system and a frequency band allocation method. The sensor network comprises aplurality of subnets and a core network, wherein each subnet comprises a gateway and a plurality of sensor nodes; the plurality of sensor nodes are connected with the gateways respectively; the sensor nodes are used for acquiring environment data; the gateways are applied to environment data transmission and network management; the core network is formed by networking the gateways of the subnets;and the core network is used for uniformly distributing a running frequency band of each subnet to the whole frequency band through a coordination algorithm. Through adoption of the sensor network, the technical problem of interference on communication due to lack of reasonable allocation for the spectrum resource in an existing Internet of things sensor network can be solved; uniform allocationof the network frequency band is realized; and the robustness of wireless network communication is ensured.

Description

Technical field [0001] The embodiment of the present invention relates to the field of wireless communication technology, in particular to a sensor network, a safety emergency system and a frequency band allocation method. Background technique [0002] Internet of things (Internet of things, IoT), as the name implies, the Internet of Things is the Internet of things connected. The Internet of Things is an important part of the new generation of information technology, and the development stage of the Internet of Things is an important development stage in the information age. The core and foundation of the Internet of Things is still the Internet. It is an extended and expanded network based on the Internet. Its user end extends and extends to any item and item for information exchange and communication, that is, things interact. The Internet of Things connects sensors, controllers, machines, people and things in a new way through communication perception technologies such as in...

Claims

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Application Information

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IPC IPC(8): H04W4/38H04W4/90H04W72/04H04W72/08H04B1/7136H04B1/7143H04W84/18
CPCH04W4/38H04W4/90H04W72/0453H04B1/7136H04B1/7143H04W84/18H04W72/541H04W72/542
Inventor 李涛
Owner ZDST COMM TECH CO LTD