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Safe and reliable image transmission method based on NB-IoT

A narrow-band Internet of Things and transmission method technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems affecting transmission efficiency, network congestion, etc., and achieve the effect of safe and reliable image transmission

Active Publication Date: 2021-02-26
江西一点信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

WRUDP is not suitable for the low-speed and low-bandwidth environment of NB-IoT. Too many retransmissions will cause network congestion
As a connection-oriented protocol, UDT will greatly affect the transmission efficiency in the presence of concurrency

Method used

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  • Safe and reliable image transmission method based on NB-IoT
  • Safe and reliable image transmission method based on NB-IoT
  • Safe and reliable image transmission method based on NB-IoT

Examples

Experimental program
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Effect test

Embodiment 1

[0028] figure 1 It is the frame diagram of intelligent security system, such as figure 1 As shown, the main body of the system includes four parties, namely the intelligent monitoring device (Monitor, M), the image information management server (Image Management Server, IMS), the user device (UserDevice, UD), and the user (User, U). Wherein: the user is the object monitored by the smart device. The user equipment is used to view the monitoring image information and receive the alarm prompt information sent by the image information management server. The image information management server is used to receive image monitoring information from intelligent monitoring equipment, and its functions include image information decryption and recovery, face recognition, sending alarm information, and user equipment management. The server has Internet access function. The intelligent monitoring equipment transmits the collected and encrypted image monitoring information to the image in...

Embodiment 2

[0064] In this embodiment, the image transmission method of the present invention is implemented on MSP430F5438A, Windows ServerR2, and Huawei P9, so that the image transmission method is applied to the NB-IoT security smart lock, and the NB-IoT security smart lock solution is realized, and the various items of the solution are implemented. Performance indicators were evaluated. The experimental test environment of this embodiment is as follows: the smart lock remote management server SLMS is configured as Inter(R) Xeon(R) CPU E5-2682 v4@2.50GHz processor, 2GB main memory; the secure smart lock SSL is developed using MSP430F5438A, and its performance parameters It is a 16-bit ultra-low power microcontroller with 256KB flash memory and 16KB RAM. The NB-IoT module used is Quectel BC95 with an uplink rate of 62.5kbps and a downlink rate of 24kbps. The Bluetooth model used is DialogDA14580; the unlocking device D Use a Huawei P9 mobile phone, which is configured with 3GB of runnin...

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Abstract

The invention relates to a safe and reliable image transmission method based on narrow band internet of things. Firstly, an intelligent monitoring device encrypts the image signature information message, and the encrypted image signature information message and the image compression data information message together disrupt the data packet order, and all the data packets are sent by NB-IoT to theimage information management server; the image information management server restores the original sequence of the data packets after receiving the data packets, and sends a signature confirmation message to the intelligent monitoring device after receiving the image signature information message for a period of time, and the intelligent monitoring device retransmits the missing image signature information message after receiving the signature confirmation message. The image transmission method of the invention designs the non-uniform encryption discrete packing mechanism and the non-balancedretransmission message protection mechanism, which can not only ensure the intelligent monitoring device to safely and reliably transmit the image, but also complete the image transmission with the least message transmission quantity.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a safe and reliable image transmission method based on narrowband Internet of Things. Background technique [0002] With the development of Internet of Things technology, the form and requirements of intelligent security are constantly changing. Traditional monitoring systems are built in active wired environments or active wireless environments. Most of their systems require mains power and provide wired networks or such as WiFi and other wireless short-range networks. At this stage, the intelligent security system will face difficulties such as the need for remote monitoring and the inability to provide power for the monitoring scene. Therefore, it is necessary to design an intelligent security system that can solve the above two problems at the same time. [0003] The emergence of NB-IoT (Narrow Band Internet of Things) provides a new design idea to solve the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L1/00H04N7/18H04L1/16H04L1/18H04L9/06
CPCH04L1/0061H04L1/1607H04L1/18H04L9/0631H04L9/0637H04L9/0643H04L63/0478H04N7/18
Inventor 胡慧玲李军范雷胡德刘梦君杨帆
Owner 江西一点信息技术有限公司
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