The life cycle is reduced by oneafter the message is forwarded once, and the forwarding isstopped when the time is reduced to

optimal initial energy allocation isobtained, in order to deal with the problem of energy ho

he proposed protocol not onlyensures the redundancy of data link, but also reduces theamount of data transmission and energy consumptio

s, such as different nodelayout density, can also reduce the effect of energy h

higher initial energy forthe nodes near sink node can improve the network lifetime

ith short distance areequipped with higher initial energy, and the nodes with fardistance are equipped with lower initial e

‘energy hole’

The time when the first nodedies due to energy depletion is 533s, while the time ofFlooding algorithm is 288s. So, BEH-Flooding extend thelife cycle of network

Because the Flooding protocol transfersdata frames to the network by broadcast mode, the averageresidual energy of nodes decreases linearly. The data framesin BEH-Flooding routing protocol are only forwardedbetween routing nodes in the upper level, which avoids therandomness of data transmission

evaluate the data collection efficiency of the proposedBEH-Flooding protoco

n supposes that the canal is2000 meters long with 20 measurement nod

last hop node number, the distance to sink node(hop number), the time attribute and the message life cycle.Among them, hop number is added one after the message isforwarded onc

Some factors should be considered when implementingwireless data collection

paper proposes an improved Flooding routingprotocol based on residualenergy and hop number, namelyBEH-Flooding routing protoco

o put forwardlow energy consumption and high efficiency routingalgorithm.

GPRS/Internet methodhas the defect of single point transmission, which causeslower system scalabilit

At present, remote data acquisition system based onGPRS technology is the main wireless monitoring methodfor rural irrigation area

tis necessary to explore wireless transmission technology forthese monitoring points