RICM4 2017 2018 - Serre Connectee / SRS

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Document History
Version Date Authors Description Validator Validation Date
0.1.0 05.02.2017 Timothée DEPRIESTER, Guillaume BESNARD TBC TBC TBC

1. Introduction

1.1 Purpose of the requirements document

The Software Requirements Specification (SRS) is a communication tool between stakeholders and software designers. It gives a description of the software’s purpose and functionality. In other words, the SRS is a document that captures complete description about how the system is expected to perform.

1.2 Scope of the product

The project consist of upgrading a classic greenhouse to retrieve live information about its climate. This information should be available for the farmer to view locally on a screen.

1.3 Definitions, acronyms and abbreviations

  • Greenhouse: an area, usually chiefly of glass, in which the temperature is maintained within a desired range, used for cultivating tender plants or growing plants out of season.
  • LoRa: Long Range and low energy radio RF technology developed by Semtech. It's an open-source technology.

1.4 References

1.5 Overview of the remainder of the document

We'll then dive deeper into specification and requirements of the project.

2. General description

2.1 Product perspective

  • The aim of this projet is equip to equip multiples farms, not only one greenhouse.
  • This project may become a flagship project for ST MicroElectronics

2.2 Product functions

At the end, product should return:

  • The air temperature
  • The air moisture
  • The soil moisture

And display these data on a local graphic interface (dashboard).

2.3 User characteristics

  • Even though those specifics farmers in St Cassien are (former) engineer, we should assume no technical background from the users to be able to use this systems for others farms.
  • Users are busy enough with their activity, we shouldn't assume they have time for complex deployment and maintenance.

2.4 General constraints

  • The energy source : There is no power near of the greenhouse, consequently we'll use a battery.
  • Duty Cycle : We can use only 1% of the time in order to comply with the law.
  • Sensors needs to be moveable : Vehicles should be able to move along the greenhouse.
  • Easy deployment : we aim to provide an easy way of setting up the systems :
    • Via an easy sets of instructions (tutorial)
    • And/or by using a docker image, containing all the necessary (dependencies and configurations).

2.5 Assumptions and dependencies

  • We assume that the farm itself will have no (or not long) power outage.
  • We assume that the battery will provide enough energy for a time span.

3.Specific requirements, covering functional, non-functional and interface requirements

  • document external interfaces,
  • describe system functionality and performance
  • specify logical database requirements,
  • design constraints,
  • emergent system properties and quality characteristics.

3.1 Requirement X.Y.Z (in Structured Natural Language)

Function: Sensors' measures access.

Description: The farmer need to be able to view the measurements on a screen at any time.

Inputs: Measurements and data from the sensors (Humidity of air/soil and ambiant temperature).

Source: NUCLERO-L073RZ

Outputs: Visual graph on the screen, using graphana visualization.

Destination: Raspberry's InfluxDB

Action: Visualization

Non functional requirements: Acceptability / maintainability

Pre-condition: All equipments are powered and properly working.

Post-condition: Same state as pre-condition

Side-effects: None (visualization is a "passive" action)

4. Product evolution

In this iteration we aim to provide a local data viewer. Other groups are working towards an online dashboard solution. It might be interesting to group all this data on the same online virtual machine.

5. Appendices

6. Index