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AIRIOT智慧系统搭建平台经验交流

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  3. 流程中获取设备表中某个数据点的集合

流程中获取设备表中某个数据点的集合

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #1

    在一个设备表中添加了计算节点,设备表中有多台子设备,现在需要在流程中获取所有子设备中aa的实时数据,要通过什么配置能在流程中一次性获取到?
    fa5c14b1-cc2f-4824-b4e3-8a4ae27dde39-image.png

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #2

    大概是这样
    image.png

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #3

    在已经使用【计划事件】作为起始节点的情况下,该如何获取

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #4

    计划事件起始的话 下一个节点没发查询到设备表

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #5

    如图,【设备表数据事件】选择了2个设备表,共11个数据点,这种情况下,是11个数据点中任意一个数据点上数都会触发流程,还是11个数据点全部上数时才会触发流程,又或者只要这11个数据点不为空就会触发流程

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #6

    image.png

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #7

    任意的数据点值,

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #8

    我按照你的配置,得出的数据不太对,一个设备表中有6台设备,同个时间上数会触发6次流程,这样得到的数据都是分散的,我需要的是触发一次流程后,能够一次性得到所有子设备的指定数据点集合,需要怎么更改?
    image.png
    image.png

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #9

    image.png

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #10

    歘不多的结果,依旧是哪个设备触发就只能获取到哪个设备的数据点,不能得到合集
    image.png
    image.png
    image.png

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #11

    你这个所有数据点的集合,是某个时间点的所有设备的这个数据点的总和?

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #12

    是的,比如设备表中有一个公共数据点为A,设备表中有6台设备,需要获取的是同一时间点下所有子设备的A值

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #13

    应该通过什么方法实现呢?

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #14

    这个我先问下吧,,

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #15

    这个有结果了吗???

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #16

    有个疑问是 获取的同一时间点,这个时间点如果不是数据点的上数时间点呢,那需要去数据点的什么时间的值?

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #17

    正常来说,这个数据点如果还没上新的数据,获取的应该是前项数据

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #18

    其实我的本意是想用【实时数据】每秒获取父设备中的数据点值,但是【实时数据】一定要精确到某个设备,只能获取到某个子设备的数据点值,实现不了这个功能,才用的【设备表数据节点】

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  • 智能人机智 Offline
    智能人机智 Offline
    智能人机
    wrote on last edited by
    #19

    但是数据点也是每秒上数吗?

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  • S Offline
    S Offline
    Sunny
    wrote on last edited by
    #20

    现在大部分数据点是每秒上数的,如果可以用【实时数据】获取数据,不管数据点是几秒上数,只要【实时数据】前连接一个计划事件,执行时间为1秒,流程就是每秒执行一次,不用考虑几秒上数的问题

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