Aiming at Top-k multiple query in wireless sensor networks issues

a Top-k multiple query algorithm is proposed

according to the constrained conditions

several received Top-k queries are preprocessed

two kinds of different queries set multiple queries with one condition limited and multiple queries with several conditions.For the Top-k multiple queries with one condition issues

an algorithm

known as ETOP（efficient Top-k）algorithm is presented.Which deal the earliest Top-k query with the in-network processing

put the results into base station and set the min value as the threshold

and transmit to each node

then corresponding query is carried out according to later query range of query require to get the results quickly.The experiments illustrate that Top-k multiple query algorithm performs well on querying

and at the same time reduces the transmit cost and energy cost in wireless sensor networks.