Abstract: The rapid development of wireless communications has permitted to improve low-cost, low-energy sensor nodes each accomplished of sensing, processing and communicating with neighboring nodes by means of wireless links. A Dual Tired Network Model are planned to be proposed for relay placement problem. Energy-alert and fault tolerance are two important design goals of large scale wireless sensor network. Dual Tired Network Model formulate a constrained multi-inconsistent linear programming to determine the location of the sensor nodes and data transmission pattern. Initial tier, a linear network finds optimal placement strategies algebraically using Consistent Assignment (CA) scheme. Through algebraic results, the optimal node placement strategies provide a significant benefit to minimize the energy alert total cost. In Dual Tired Network Model, second tier develops a Level Self-sufficient (LS) scheme to create a solution for fault tolerance mechanism. It also analysis the fake information sources that acted as storage nodes during the failure of links to minimize the delay time. The two objectives studied in the study are to minimize the energy consumption total cost and to develop fault tolerant mechanism. A finite number of sensor or aggregation nodes in a region with certain coverage requirement are provided to perform the experimental evaluation. Various statistical parameters computed are compared with the existing Mobile Multi-hop Relay (MMR) networks to obtain better results with 8.166% minimized energy consumption in terms of cost, effective fault tolerant and minimal delay occurrence during network re-entry.