Now a day’s Wireless Sensor Network (WSN) tends to attracts scientific community and its applications become the topic for many studies. This has been made possible by availability; especially in sensors have gotten smaller, cheaper and smarter in recent years. In order to form a network, these sensors are equipped with wireless interfaces by which they can communicate with each other. The use of and the ability to organise these sensors into networks have revealed several research challenges and have highlighted new approaches to deal with those problems. The goal of this article is to provide an up-to-date overview of both traditional and most modern WSN military applications and, hopefully, not only to allow this scientific field to be understood, but also to encourage the perception of new applications. The key categories of Wireless Sensor Networks applications are identified and characteristic examples of the applications are identified in order to achieve this objective.

Farmers used to calculate the soil's readiness and assess the impact of their doubts before producing a particular type of yield. A real-time monitoring system for livestock and agriculture describes the utilization of the Internet of Things (IoT) technology. The system comprises of various sensors and devices that collect data related to the environmental conditions, health status, and behaviour of livestock, as well as the soil moisture level, temperature, and humidity of crops. The data collected from these devices is transmitted to a cloud-based platform where it is processed. The system also includes alerts and notifications to farmers in case of any anomalies or deviations from the expected norms, enabling them to take prompt corrective action. Overall, the real-time monitoring system using IoT technology has the potential to improve livestock and crop management practices, increase productivity, and enhance the overall efficiency of the agriculture industry.

The rise of wireless sensor networks (WSN) as a dominant technology trend in the coming decades has presented researchers with a number of specific challenges. The combination of sensing technology, computing power, and wireless connectivity makes it lucrative to be used in large quantities in the future. Incorporating wireless networking technology often introduces a number of security risks. The aim of this paper is to look at security-related problems, challenges, and strategies for securing the WSN against these security threats. Although there are numerous problems in sensor networks, this paper focuses solely on the protection of wireless sensor networks. The aim of this paper is to present the idea of a Wireless Sensor Network (WSN), as well as its components and architecture. The paper then looks into some of the big security concerns affecting wireless sensor networks (WSNs).In addition, some security goals for Wireless Sensor Networks are proposed, as well as a threat analysis of Wireless Sensor Networks. Finally, it suggests some measures against these threats.