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ZigBee is emerging in recent years, a network capacity, node, small size, simple structure, low rate, low power wireless communications technology. Based on the ZigBee protocol stack, appropriately streamlined and improved, with integrated VF-06-322 CC2430 node serial camera module, based on non-embedded operating system support for wireless sensor networks to achieve the image data fast and reliable...
In order to improve the reliability of gas monitoring in coal mine, we design a wireless sensor networks with the piezoelectric gas sensors, The wireless sensor networks is suitable for gas monitoring in the severe environment of coal mine. The networks' topology is sub-cluster type, and the cluster head node is selected in competitive method. Data fusion and routing of the cluster nodes are controlled...
In order to solve environmental parameters monitoring problem of the individual small-scale greenhouse in Hanzhong area. The article provides a design of wireless greenhouse environment monitoring system based on ZigBee technology. The system uses SPCE3200 microcontroller as the core composition of data processing and monitoring terminals, it can control the CC2420 wireless data transceiver modules,...
In this paper, a multi-interface Wi-Fi node for Wireless Sensor Network (WSN) is constructed. Wi-Fi is connected through SPI (Serial Peripheral Interface Bus) to form the relatively energy saving wireless transmission. Along with other interfaces, the multi-interface function requirements are satisfied. Firstly, the overall module design framework is introduced, followed by the hardware and software...
In allusion to the current developing situation and shortcoming of transmission lin aeolian vibration monitoring. a transmission lin aeolian vibration monitoring system is designed based on CC2430 for wireless transmission, the design scheme and architecture are introduced. The emphasis of design is the system hardware circuit including sensor module, signal processing, filtering and amplifier module,...
according to study the a Maximal Lifetime with Constrained Energy problem (MLCE)in a sensors net, we discuss the bound of the option value of mix integer program (MIP). Since the Maximun of the MIP is NP complete problem, so the exact solution can not be obtained, but the bound of the option value is exist. This paper use Lagrangian relaxation method to derive theoretical upper bound on the optimal...
According to the greenhouse environment of the application needs,design of the thesis is about a greenhouse environment monitoring system. The wireless monitoring network system includes temperature gathering module and the wireless transmission module. Sensor nodes and the wireless transceiver module use core microprocessors of cc2430, to build wireless sensor networks based on ZigBee protocol. The...
Through the study of the Internet of Things technology, the idea combining EPC Internet of Things with WSN is proposed which demonstrates the integration feasibility of the RFID and WSN technology. In order to improve the efficiency of logistics enterprises all aspects in the transport process should be monitored which need to apply the Internet of Things technology into the logistics management system...
The exorbitant gaseous carbon dioxide (CO2) content does cuase hazard to the environment, animals, plants and human health. This paper explores the Wireless Sensor Networks (WSN) combined with carbon dioxide gas sensor for testing the content of carbon dioxide gas in environment. This system can be applied to the forest, mine, green house and indoor environment whose circumstances are unattended....
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