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OB02 Construction Smart City Hub

OB02 Construction Smart City Hub

Introduction

This document describes the basic premises for the construction of the Smart City Hub.

The Smart City Hub (SCH) is an essential part of the new smart city network. The Smart City Hub comprises the following basic elements on which the Smart City Infrastructure (SCI) rests:

  1. physical location;
  2. power connection;
  3. data connectivity.

An SCH can be located in several different support structures, be they existing or new objects in public space. To use the public space as efficiently as possible, the fewest possible additional support structures will be placed to serve as Smart City Hubs. Use will either be made of the existing Smart City Hub or multifunctional Smart City Hubs (e.g. light masts with extra functionality) will be placed.

As there is a lot of overlap/coherence between the previous Concept Selections OB-00003 Design Support Structure, OB-00010 Sensor Hotel, and OB-00002 IoT, these will be added to this Concept Selection OB-00002 Construction Smart City Hub.

This concept selection describes the basic elements of a light mast as a Smart City Hub support structure. Should a different support structure be used as Smart City Hub, physical modifications to the components may be needed. The system itself will remain unchanged. This concept selection does set standards for the support structure depending on the type of building block (see table 2-1) and the required auxiliary equipment (AUX). The physical form of the support structure affects the ultimate features of the SCH. The support structures do, after all, have many different dimensions. Potential support structures are:

  • MUPIs (advertising column)
  • Kiosks
  • Light masts
  • OLC boxes (distribution box)
  • Bus shelters
  • Landmarks (Morales Boulevard)
  • HTM mast
  • TCS (traffic control system)
  • Street furniture

What is important is that every light mast meets the minimum requirement for lighting. This also applies to conversion of existing light masts. This is described in Concept Selection OB-00006 Expandability Brownfield.

The design of the support structure and the precise geographic location of the support structure fall outside the scope of this concept selection and are to be included in the definite/detailed design of the relevant project area/zone. This is described in detail in Concept Selection OB-00011 Configuration.

A Smart City Hub can comprise one or more building blocks. Not all building block are always included on all Smart City Hubs. Three types of building blocks have been defined in the table below.

Building blockDescription
Lighting+This is in fact a smart light mast. It can switch lights on/off, dim them, is available 24/7 on the OLC network and is connected in a LAN with light masts (limited connectivity) (power supply 24/7, 220 Vac, 6A).
FibreThis building block uses fibre to connect to the WAN (internet). This building block can be part of various support structures and be included, for example, in a switch box as long as the LAN is also connected to the switch box (local power supply).
Capacity+This building block has a strong power supply with a large capacity (for charging for example) from the Stedin network (power supply 24/7, 220 Vac, 18-32A).

Table 2-1 Building block type for a Smart City Hub

Not every building block has to contain lighting. A fibre building block can also be mounted on a kiosk for example and, depending on the need and business case, additional accessories (AUX) can be added to a Smart City Hub.

The Smart City Hub is thus modular and can be customised to the actual usage and be adapted to new situations in the future.

Management summary

This management summary contains some crucial starting points (selections) that are described further in the document. The purpose of the table below is to clarify these starting points.

No.SelectionMotivation
1Connection point e-power supplyThe connection point of the e-power supply is dependent on the building block type and is either an OLC connection or a Stedin connection.
2Internal e-power supplyThe internal e-power supply meets the current standards as far as possible and will therefore use a mini USB 3.0 Hub. For stronger capacities it will use a PoE connection. This will limit the number of cables in the Hub.
3WAN connection point (fibre)If a Smart City Hub gets a WAN (fibre connection), it will be terminated in the MJB on an FTU.
4LAN connection pointsSeveral wireless LANs can run concurrently.
524/7 availabilitySmart City Hubs always have 24/7 power supply.

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