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排水管网流量监测系统 我有新说法
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  利用现代信息技术和监测手段,建设智慧城市,是当今世界城市发展的趋势,更是生态文明建设的重要内容。同时,新时代的发展对水务的智慧化也提出了更高的要求。因此,对城市雨污排水系统不仅要建设好,而且要采取有效的监测手段,保护城区的生态环境显得尤为重要。
  通过排水管网系统可以实现对管网分布信息的查询,通过排水管网系统可以实现对排水管网数据的监测和采集,而智慧排水信息系统可以与排水系统、排水泵站自动监控系统、城市河道管理系统等共享数据信息,并处理分析数据,实现对排水管网运行状态的评估、预测,进而完成对排水管网科学有效的调度管理。

  一、背景介绍

  利用现代信息技术和监测手段,建设智慧城市,是当今世界城市发展的趋势,更是生态文明建设的重要内容。同时,新时代的发展对水务的智慧化也提出了更高的要求。因此,对城市雨污排水系统不仅要建设好,而且要采取有效的监测手段,保护城区的生态环境显得尤为重要。

  通过排水管网系统可以实现对管网分布信息的查询,通过排水管网系统可以实现对排水管网数据的监测和采集,而智慧排水信息系统可以与排水系统、排水泵站自动监控系统、城市河道管理系统等共享数据信息,并处理分析数据,实现对排水管网运行状态的评估、预测,进而完成对排水管网科学有效的调度管理。

  二、系统概览:

  据现场人员反馈,需要对现场的各个排污口进行监测,管网中采用多普勒超声波流量计,同时监测水位,流速,流量,统一连接遥测终端机,遥测终端机插卡上传至云平台,在微信端或者电脑端可随时共享数据。

  供电:建议采用锂电池供电系统。5分钟上传一次数据的话,锂电池可以满足连续2-3个月供电。

  三、方案组成:

  1、多普勒超声波流量计探头:该探头可同时测量水位、流速、流量、水温。

  2、锂电池供电系统(内置遥测终端机):主要用于传感器探头和遥测终端机供电,一般采用45H/12V蓄电池,默认5分钟采集一次,大概可以坚持3个月,内置遥测终端机主要功能是将各个测量点的流速流量信息进行汇总计算,通过GPRS无线网络发送到服务器,可以通过云平台(免费)或者数据接收软件(收费、且要求客户有固定IP的服务器)查看实时的水位、流量信息。

  3、镀锌钢管:用于线缆走线。

  4、安装支架:用于将流量计探头固定于管道底部内部。

  5、云平台

  四、产品特点:

  1、多普勒流量计:

  l 宽量程:0.02-5m/s(流速)

  l 分辨率可达1mm/s(流速)

  l 高响应时间,打破以往需要长时间才能得到流速流量的,测量结果时时刷 新。

  l 速度面积法流量测量,适合满管及非满管,可自由设定断面水位关系。

  l 内部自带高精度温度传感器可用于水温测量和声速补偿。

  l 流体力学外壳设计,对水体流态影响小,不影响测量精度。

  l 防腐蚀外壳设计,能够在恶劣环境下长期工作。

  l 可提供瞬时流量值和累积流量值。

  l 无机械转动部件,不存在泥沙堵塞或水草、杂物缠绕等问题,适用于泥沙悬浮物含量高,水草等漂浮物多的河流中测量。

  l 测量线性,出厂已校准长期使用也无需校准。

  l 配有数据接收软件,可读取实时数据和累计数据。

  技术参数:

  流速:测量范围:0.02-5m/s

  精度:1.0%±1cm/s

  分辨率:1mm/s

  水深:测量范围:0m-10m

  精度:±1cm

  分辨率:1mm

  温度:测量范围:-10℃-60℃

  精度:±0.5℃,

  分辨率:0.1℃

  流量: 测量范围:0.001m³/h-999999999 m³/h(根据断面可以增加)

  精度:±3%(根据断面流态有所不同)

  分辨率:0.0001 m³/s

  电源:直流10V-24V

  工作电流:12V 小于0.1A

  输出信号:RS485(Modbus-RTU)

  存储容量:2M(可扩展)

  防护等:IP68

  工作温度:0℃-60℃(不结冰)

  存储温度:-10℃-70℃

  设备材质:灰色PVC

  2、遥测终端机

  通信功能:支持GPRS,短消息等多种通信方式。

  l 工作模式:支持实时在线以及定时唤醒等工作方式。

  l 采集功能:水位,雨量,温湿度,水文,流速,流量,风速风向,闸位,电池电压等数据,其它传感可定制。

  l 图片抓拍功能:支持4个工业相机抓拍上传。

  l 远程管理功能:支持远程配置,远程升,远程重启等远程维护功能。

  l 报警功能:水位雨量,门限报警。

  l 存储功能:自带flash存储以及TF卡,可存储历史数据,掉电不丢失。

  l 本地配置:本地支持USB以及WIFI配置,数据查询,历史数据导出。

  l 支持多3个中心,可实现“一包多投”功能

  l 支持256GB容量TF卡,可作为海量数据存储器使用。

  l 宽电压设计,具有反接保护和短路保护功能。

  l 所有输入输出端口采用抗雷击设计,可省缺外置防雷保护模块。

  l 支持主备信道切换,以及GPRS短信同时上报(短信内容格式可定制)。

  l 安全报警功能:支持柜门开启报警

  技术参数:

  硬件配置:2路RS485接口,1路TTL串口(可用作IO接口,外接单总线温湿度传感器,控制继电器等),1路IO接口,1路脉冲输入接口,1路脉冲雨量计接口,2路模拟量4-20mA接口,1路以太网接口(可外接多种转换模块),2路12V可控电源输出,1路5V可控电源输出。

  存储容量:16M,支持256G TF卡。

  供电电压:6-24V。

  功 耗 :待机电流<1Ma(12V)。

  工作电流<6Ma(12V)。

  工作环境:温度-30~60℃,湿度:<95%(无凝露)。

  五、锂电池供电系统

  采用IP68防水等外壳,内置RTU,可现场显示数据,也可以将采集数据通过4G或者有线直接远传至平台,在云平台上进行查看,适用于一些管道有漫上来的情况,不用担心进水的问题。

参考资料

参考资料编辑区域


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