###### Abstract  
In order to achieve a multi-path routing algorithm with time delay and energy consumption balance to alleviate the energy holes around a sink, a multimedia independent multipath routing algorithm for internet of things (IoT) based on node hidden communication model is proposed in this paper. On the premise of satisfying the application delay, a multi-source multi-path routing algorithm is proposed by using the idea of software definition and fitting multiple curves to form independent multi-path routing. Through a sink node centralized programming control source node routing, according to the priority of the source node, the dynamic angle of the source node can be allocated, which effectively reduces the energy consumption of the network. In addition, considering that the Internet of Things has more perceptive nodes, limited computing and storage capacity, frequent joining and exiting operations and other factors, a hidden communication model of nodes is designed for the IoT. It is helpful to improve the level of privacy protection in the IoT, and to effectively improve the ability of nodes to resist attacks in the IoT. The experimental results show that the proposed algorithm avoids the interference between paths and various network attacks to the greatest extent, and the energy consumption is relatively low under the requirement of quality of service (QoS) delay.  
independent multipath routing algorithm; the Internet of things; wireless multimedia sensor network (WMSNs); multimedia data processing; node concealment communication model; multimedia security; the network energy consumption +
Footnote †: journal:  
0000-0001-5000-0001-5000]J.J.M.  
reduce the average energy consumption of sensor nodes and prolong the network lifetime. In the past decade, multipath routing has been widely used for various purposes, such as improving the reliability of data transmission, providing fault-tolerant routing, congestion control and quality of service (QoS) support. In single-channel wireless networks, because of the broadcast characteristics of wireless communication, sensor nodes use shared wireless channels to communicate with adjacent paths. Intensive concurrent communication may cause interference and increase the probability of packet collision between active path nodes. This problem is called path coupling effect, which limits many of them. This problem poses a challenge to the design of efficient multipath routing protocols. In order to reduce the interference between multipath routing, designing independent and disjoint paths becomes the main standard for designing multipath routing protocols. The main contributions of this paper are summarized as follows:  
1. On the premise of satisfying the application delay, using the idea of software definition, the independent multi-path routing is formed by fitting multiple curves. A multi-source multi-path routing algorithm is proposed, which takes into account the balance of delay and energy consumption.
2. Aiming at the problem of privacy disclosure of communication relationship, a node hidden communication model is designed for the IoT. In this covert communication system, the attack detection and prevention technology is studied, which effectively improves the anti-attack ability.  
The structure of this paper is as follows: chapter 2 introduces the related research on Multimedia Routing Algorithm in the IoT. chapter 3 introduces the system model in detail. chapter 4 introduces the design of multimedia independent multipath routing algorithm. chapter 5 introduces the implementation process of multimedia independent multipath routing.