Internet of things system networking based on ISM frequency bands below 1GHz

An Internet of Things system and networking technology, applied in low power consumption, large-scale networking, and low-cost fields, can solve problems such as short communication distance, low data rate, unfavorable large-scale high-flexibility networking, etc. , to achieve the effect of low power consumption of the extension and low networking cost

Inactive Publication Date: 2015-08-12
张韶冬
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Problems solved by technology

Zigbee is a wireless network technology with short distance, low data rate and low power consumption; compared with Zigbee, Bluetooth has a higher data rate, but the cost is also higher; wireless Ethernet consumes more power
A notable feature of these technologies is that the communication distance between single points is short, which is not conducive to large-scale and highly flexible networking.

Method used

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  • Internet of things system networking based on ISM frequency bands below 1GHz
  • Internet of things system networking based on ISM frequency bands below 1GHz

Examples

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Embodiment Construction

[0015] exist figure 1 Among them, the host 1 and multiple extensions 2 constitute a basic networking unit. The communication frequency between the host 1 and the extensions 2 is the ISM frequency band below 1GHZ, and the half-duplex communication method is adopted. Each communication is initiated by the host 1. An extension 2 sets a unique address. The host 1 sends data or commands in a data frame with an address code. After the extension 2 receives it, it compares the received address code with the address code of the local machine. If the address is different, the data is discarded, and the address is the same. Then process and reply.

[0016] The working time of extension 2 is divided into three sections, sleep time, listening time and response time. During the sleeping time, extension 2 enters sleep or other power-saving mode; during the monitoring time, extension 2 enters the data receiving state, waiting for the host 1 to send within the response time, extension 2 respo...

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PUM

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Abstract

The invention discloses a networking way of an Internet of things system. A host and a plurality of extensions construct basic networking units; communication frequency bands between the host and the extensions are ISM frequency bands below 1GHz; a half-duplex communication way is adopted; the host transmits data or commands by adopting data frames with address codes; and the working time of the extensions is classified into sleeping time, monitoring time and response time. Within the monitoring time, the data frames transmitted by the host are received; the extensions enter three segments of working time circularly; and the host enters a monitoring mode after finishing transmission to monitor whether or not replies of the extensions are received within a certain time period. Through different basic networking units, the coexistence of a plurality of networks in the same region is realized through setting of a plurality of channels. The networking way of the Internet of things system is suitable for large-scale flexible networking under the situation of low requirements on instantaneity and communication traffic.

Description

technical field [0001] The invention relates to a networking mode of an Internet of Things system, especially a low-power, low-cost, large-scale networking mode. Background technique [0002] At present, the networking methods of the IoT system mostly use ZigBee, Bluetooth, wireless Ethernet, or other communication technologies based on the 2.4G wireless frequency band. Zigbee is a wireless network technology with short distance, low data rate, and low power consumption; compared with Zigbee, Bluetooth has a higher data rate, but the cost is also higher; wireless Ethernet consumes more power. A notable feature of these technologies is that the communication distance between single points is short, which is not conducive to large-scale and highly flexible networking. Contents of the invention [0003] In order to overcome the deficiencies in the coverage area and flexibility of the existing networking methods, the present invention provides a networking method based on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04W52/02H04L29/08
CPCH04L67/025H04W16/18H04W52/0203Y02D30/70
Inventor 张韶冬
Owner 张韶冬
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