Data transmission system, method, device and electronic equipment based on narrowband satellite communication
A data transmission system and satellite technology, applied in the field of communication, can solve the problems of low satellite link bandwidth, low payload, bandwidth waste, etc., and achieve the effect of improving data transmission speed
Active Publication Date: 2022-04-12
ZHEJIANG GEELY HLDG GRP CO LTD +1
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Problems solved by technology
[0008] (5) The bandwidth of the satellite link is low, and the cost of communication traffic is high
[0010] Nowadays, the MQTT protocol has been widely used in the field of Internet of Things, but its design based on the TCP / IP protocol has certain limitations and cannot meet the high real-time requirements of the scene.
At the same time, a large number of control messages in the MQTT protocol make the payload low and the bandwidth waste is large
This will not have a big impact on wired or cellular networks, but on narrow-band communication satellites with very tight bandwidth, it will cause high data transmission delay and high failure rate.
Method used
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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0058] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or des...
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This application discloses a data transmission system, method, device and electronic equipment based on narrowband satellite communication. The data transmission system includes a satellite-side equipment set, a first server, a second server, and a ground-side equipment set; the satellite-side equipment set and the first One server connection, based on the narrowband high-speed telemetry NBQTT protocol to transmit data; the ground side equipment set is connected to the second server, based on the message queue telemetry transmission MQTT protocol to transmit data; the first server is connected to the second server, and the first server is used to use the NBQTT protocol The data of the MQTT protocol is converted to the data of the MQTT protocol and transmitted to the second server; the second server is used to convert the data of the MQTT protocol to the data of the NBQTT protocol and transmit it to the first server, and the MQTT protocol is replaced by the NBQTT protocol for transmission between some devices Data, which can increase the data transfer speed.
Description
technical field [0001] The present application relates to the technical field of communication, and in particular to a data transmission system, method, device and electronic equipment based on narrowband satellite communication. Background technique [0002] With the development of satellite communication technology and Internet of Things technology, the Message Queuing Telemetry Transport (MQTT) protocol is gradually widely used. The MQTT protocol is a message protocol based on the publish / subscribe paradigm under the ISO standard (ISO / IEC PRF20922). It works on the TCP / IP protocol family and is a message protocol using a publish / subscribe mechanism designed for remote devices with low hardware performance and poor network conditions. For this reason, it needs a message middleware. figure 1 It is a basic topology diagram when using the MQTT protocol provided by the embodiment of this application, including publisher 101, MQTT middleware 102 and subscriber 103. [0003] I...
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IPC IPC(8): H04L67/12H04L67/01H04L69/08H04L69/16H04B7/185
CPCH04B7/18578H04L67/12H04L69/08H04L69/16H04L69/26
Inventor 张英杰毛彦政江君黄圣张俊瑞
Owner ZHEJIANG GEELY HLDG GRP CO LTD