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In the wireless sensor network routing protocol design, the sensor node monitoring data in multi-hop relay approach to sink node for transmission. For sink aggregation node fixed network, the nearby sink nodes of sensor nodes need to transfer other nodes of the monitoring data, consequently, it consumes large amounts of energy, and it's easy to premature death, making the network connectivity decline, even making the network intersected, shorten the lifetime of the network. In order to solve this problem, from the view of sink node, this thesis brings forward a protocol of SERP, which is a energy balancing routing protocol based on sink Mobility and prolongs the lifetime of network. It adopts the strategy of sink movement which makes the hot nodes inside the network take turns, balances the load among them. In SERP, firstly, the WSN deployment area is divided into finite Virtual cells ;Secondly ,we make the center of each virtual cell as the mobile position of sink node; at last, we confirm the residence time when sink node stays in each position through linear programming. Finally, the paper makes simulation al analysis aiming at above-mentioned routing protocols . The result shows that the inside node energy consumption is comparatively balanced and efficient, and the network lifetime is prolonged effectively.

This paper studies the method of making production plan in mass customization. It illuminates that all current methods of making production plan are not suitable for mass customization by analysing the lacks of these methods, and sets up the new method of making production plan in mass customization. The new method can make out the optimize production plan by the math model which is suitable for the case in mass customization. In the models,it is not only considering the production order information from the virtual zoology modularization enterprise information integration flat and rough ability balance, but also considering the weightiness in management and order, the length of the delivery date, and the cost of customization product, the target cost of customization product and the standard product cost. Finally, it makes out a production plan with its models by simulating the case of a mass customization manufactory. (5 pages)