The data journey shows how the information is gathered, processed and used.
Basic systems provide a date & time stamp of whether the CSO is spilling or not. Alarms can be triggered upon a basic event and/or upon certain criteria set at the site such as high level alarm or event duration.
More sophisticated systems monitor data such as levels at a fixed frequency, to produce a trended data set. Understanding trends allows a better understanding of what is happening at the site and provides more useful data for hydraulic modelling.
When determining what equipment to use to generate the data from the site there are 5 determining factors:
- Signal availability
- Frequency of data transmission
Because the more data points you have the better your information system will be cost becomes a determining factor for many decisions. Cost not just in terms of equipment but also installation and commissioning and then ongoing operations cost and flexibility to modify and upgrade when necessary.