Node module for traffic Internet of things and communication method for traffic Internet of things

Abstract

The invention discloses a node module for a traffic Internet of things. An eight-bit singlechip module with a built-in transmission control protocol (TCP) / Internet protocol (IP) and a built-in ZigBee protocol is used as an Internet of things sensor node module; the TCP / IP is connected with an Internet network, so that the node equipment module can directly supply an Internet service to a user; and the ZigBee protocol is used for wireless communication among the node equipment modules to forward IP data messages in a ZigBee network. According to a communication method for node modules in the traffic Internet of things, an IP protocol port number and a ZigBee network address are directly mapped with each other, so that communication between the Internet and the ZigBee network is realized. According to the node module for the traffic Internet of things and the communication method for the traffic Internet of things, a user can directly access a traffic Internet of things sensor through the Internet; address conversion between the Internet and the traffic Internet of things sensor is performed without an address mapping table; and therefore, the calculation operation is simple, and the storage space is saved.

Description

technical field [0001] The invention belongs to the field of sensor networks, and relates to a node module and a communication method for the traffic Internet of Things, and more particularly relates to a traffic Internet of Things and a corresponding communication method using a TCP / IP network and a ZigBee network for communication. Background technique [0002] With the development and progress of 3G and Internet of Things technology, intelligent transportation is developing into a "new generation of intelligent transportation". As a new technology that integrates short-range wireless communication technology, microelectronic sensors, and embedded systems, wireless sensor networks are gradually being used in new-generation intelligent transportation systems and other related fields that require data collection and detection, thus bringing a new era to urban intelligent transportation. Brand new upgrades. [0003] In order to enable traffic IoT sensors to have perception, ...

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Problems solved by technology

[0005] However, the above-mentioned prior art documents must use memory to store the address mapping table, and perform address translation by looking up the mapping table, thereby requiring a certain storage space and occupying certain system resources to search the address mapping table; and the gateway becomes The ZigBee network node module does not support the TCP / IP protocol and cannot transmit IP datagrams, so that the ZigBee network node module cannot directly provide Internet services to users

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