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Real-time position communication equipment and time slot synchronization method

A communication device and real-time location technology, applied in location information-based services, synchronization devices, wireless communications, etc., can solve problems such as nodes being unable to send data, avalanche effects, and applications that are not suitable for location tracking

Pending Publication Date: 2018-01-09
北京天狼讯业信息技术有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0005] Although LoRa has the above advantages, LoRa is mainly for small data and low-frequency applications, and is not suitable for location tracking applications.
Because although the location tracking application has a small amount of data, it has relatively high real-time requirements and belongs to the application of high-frequency sending and receiving.
In terms of resource reuse, LoRa only uses a single method for small data and high-frequency application services. Under limited bandwidth, when the number of nodes increases to a certain extent, it will cause congestion or avalanches. effect, causing all nodes to be unable to send data

Method used

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  • Real-time position communication equipment and time slot synchronization method

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Embodiment Construction

[0048] Such as Figure 1-5 As shown, the present invention provides a position tracking communication architecture based on LoRa communication technology. Through the combination of LoRa communication technology and time-division multiplexing technology, it overcomes the shortcomings of traditional networks and LoRa communication technology, and increases the number of nodes and high-frequency communication in the system.

[0049] In the process of time division multiplexing, when multiple nodes share the wireless channel and LoRa gateway (that is, the base station) for time division communication, they need to divide their respective communication time slots, and only one node sends data in each time slot, or each time slot , allowing a group of nodes to communicate at the same time through spread spectrum, and in another time slot, let another group of nodes communicate to improve the overall capacity of the system and increase the number of nodes for small data and high-fre...

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Abstract

The invention discloses real-time position communication equipment and a time slot synchronization method. The real-time position communication equipment comprises a plurality of nodes that require time slot synchronization, a LoRa gateway, a server and a client; the nodes are used for receiving own geographical position information sent by a GPS satellite, and sending the geographical position information to the LoRa gateway; the LoRa gateway has a fixed ip, and is used for receiving position information of the nodes and sending the position information to the server; and after the LoRa gateway receives the geographical position information of a node i, the geographical position information is forwarded to the server through the Internet or the mobile network, and the client matched withthe node i can access the server through the Internet or the mobile network, and check the geographical position of the node i.

Description

technical field [0001] The invention relates to a real-time position communication device and a time slot synchronization method. Background technique [0002] Old people and children get lost from time to time. Place some wireless electronic devices (called nodes) on the elderly and children, and regularly send location information to the guardians of the elderly and children, so that the guardians of the elderly and children can feel more at ease. For some valuables, these nodes can also be installed to prevent theft and other matters. [0003] The traditional method of realizing node data transmission is to first collect the node data through the traditional cellular network, and then transmit the geographic location data to the guardian's electronic device (such as mobile phone, notebook) through the operator network or the Internet. . But this approach has many problems. First, the node must have a SIM card to communicate with the traditional cellular network. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/029H04W12/06H04W56/00H04J3/06H04L29/08
Inventor 王璐朱宏伟
Owner 北京天狼讯业信息技术有限公司
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