Heron Island Sensor Relay Pole 8 (RP8)

A series of 6m steel poles have been installed in the lagoon of Heron Island as part of the sensor network deployment at Heron Island. The poles serve two purposes; their primary purpose is to form the backbone of a wireless network that covers the entire lagoon system and secondly they themselves support a range of sensors mounted onto the pole or leading away from the pole. One pole (RP5) also supports a Vaisala WXT520 weather station.This record is for Sensor Relay Pole 8. The pole is solar powered and routes data from the Sensor Floats and other Sensor Relay Poles back to the Base Station located on Heron Island. The system uses the Campbell Scientific CR1000 loggers and RF411 Spread-Spectrum radios to process and route the data. The poles also can support a range of sensors.The unit will be serviced every six months and will be used in the future for attaching new sets of sensors. The pole works primarily as a network repeater, it collects data from other poles and the Sensor Floats and routes it back to the Base Station either directly or via another pole. The poles are spaced approximately every two kilometers with the exception of those closest to the island, the base station on the island is on a 19 m tower and so a greater range was found for the first set of poles.Each pole therefore provides a wireless data network in a two kilometer radius, the combination of the poles provides coverage for the entire lagoon. The height of the base station gives around a five kilometre range around the island itself.The poles are 6 m in height constructed from galvanized steel with a solar powered instrument top consisting of a battery unit powered from the solar panels, Campbell CR1000 logger and Campbell RF411 radio. The logger can support a range of interfaces and is suitable for connection to a range of instruments. Power SupplyBattery Backed (1 x 33 Ah AGM with Solar Regulator), 1 x 87 W Solar Panel Supply.Logger Settings - Pakbus Address - 180Logger Setup as router (isRouter = True)CSDC7 comms board rate set at 38400SDC7 neighbours range: 1 - 179SDC7 Beacon: 600Over-Reef RF Network - RF411 attached to the CSIO port of the loggerRadio Settings - Active Interface - Datalogger CSDCSDC Address 7Protocol: Pakbus awareRadio Net Address - 0Hop Sequence - 0Power mode - Retry level - Low

作为苍鹭岛(Heron Island)传感器网络部署项目的组成部分，一系列6米高的钢制立柱已安装于该岛潟湖水域内。此类立柱具备双重功能：首要功能为构建覆盖整个潟湖系统的无线网络骨干架构；次要功能则用于承载安装于立柱本体或从立柱延伸布设的各类传感器。其中编号为RP5的立柱还搭载了维萨拉WXT520气象站(Vaisala WXT520)。本记录对应编号为8的传感器中继立柱(Sensor Relay Pole 8)。该立柱采用太阳能供电，负责将传感器浮标(Sensor Floats)与其他传感器中继立柱采集到的数据回传至位于苍鹭岛的基站(Base Station)。该系统采用坎贝尔科学(Campbell Scientific)CR1000数据采集器与RF411扩频无线电完成数据处理与转发工作。此类立柱亦可承载各类外接传感器。该设备每半年将接受一次定期维护，未来还可用于加装新一批传感器模组。该立柱主要作为网络中继器(network repeater)运行，可采集其他立柱与传感器浮标的监测数据，并通过直连或经其他立柱中转的方式将数据回传至基站。立柱间距约为2公里，紧邻苍鹭岛的立柱除外——岛上基站架设于19米高的塔架之上，因此首批布设的立柱通信覆盖范围更大。单根立柱可实现2公里半径内的无线数据组网，所有立柱协同覆盖整个潟湖区域。得益于基站的塔架高度，其在苍鹭岛周边可实现约5公里的通信覆盖范围。该立柱高度为6米，采用镀锌钢制材质；顶部搭载太阳能供电的仪器舱，包含由太阳能板供电的蓄电池单元、坎贝尔CR1000数据采集器与坎贝尔RF411无线电模块。

供电系统：搭载带太阳能控制器的1×33 Ah吸附式玻璃纤维隔板(AGM)蓄电池，搭配1×87 W太阳能板供电。

数据采集器配置参数：
- Pakbus协议地址：180
- 配置为路由器模式（isRouter = True）
- CSDC7通信板速率设置为38400
- SDC7邻居节点范围：1 - 179
- SDC7信标周期：600

礁上RF网络配置：RF411模块连接至数据采集器的CSIO端口
无线电参数设置：
- 活动接口：数据采集器CSDC
- SDC地址：7
- 通信协议：支持Pakbus协议
- 无线电网络地址：0
- 跳数序列：0
- 电源模式：重试等级为低