Smart City

Smart City: IoT Infrastructure for Intelligent Cities

October 2, 202512 min minutes to read
7 minutes to read

Table of Contents

The Cities of the Future Are Here

A Smart City uses technology to improve citizens' quality of life, service efficiency, and sustainability. IoT (Internet of Things) is the backbone of this transformation.

Smart City Domains

Smart Mobility

  • Adaptive traffic lights
  • Smart parking
  • Optimized public transport
  • Electric vehicle charging

Smart Utilities

  • Efficient public lighting
  • Water network monitoring
  • Optimized waste collection
  • Renewable energy sources

Environment and Safety

  • Air quality monitoring
  • Flood detection
  • Intelligent video surveillance
  • Disaster alerting

Citizen Services

  • Public WiFi
  • Real-time information
  • Integrated mobile apps
  • E-government

Measurable Benefits

  • -30% lighting energy consumption
  • -20% parking search time
  • +40% waste collection efficiency
  • -25% CO2 emissions

Light Only When and Where Needed

How It Works

System Components:

  • Controller per pole or group
  • Presence/ambient light sensors
  • Communication (LoRa, NB-IoT, PLC)
  • Central management platform

Features:

  • Automatic dimming based on time/season
  • Intensification on motion detection
  • Consumption and fault reporting
  • Programmable scenarios (events, emergencies)

Communication Technologies

LoRaWAN

  • Range: 5-15km urban
  • Infrastructure cost: Low
  • Latency: Acceptable for control

NB-IoT

  • Coverage: Where mobile network exists
  • Advantage: No own infrastructure
  • Cost: Subscription per device

PLC (Power Line Communication)

  • Uses the power cable
  • Zero additional infrastructure
  • Limitation: Possible interference

Typical ROI

  • Energy savings: 50-70%
  • Maintenance reduction: 30%
  • Payback: 3-5 years
  • LED lifetime: 15+ years

Find a Parking Spot Instantly

Sensor Types

In-Ground Sensors

  • Detection: Magnetometric
  • Accuracy: >99%
  • Durability: 5-10 years
  • Installation: Asphalt coring

Overhead Sensors (cameras/radar)

  • Coverage: Multiple spots per device
  • Accuracy: 95-98%
  • Advantage: No pavement modification
  • Use: Covered parking

Ultrasonic Sensors (indoor)

  • Mounting: Ceiling
  • LED indicator per spot
  • Use: Malls, buildings

Complete Parking System

Components:

  1. Sensors per spot
  2. Collection gateways
  3. Processing server
  4. Guidance displays
  5. Mobile app
  6. Payment integration

Advanced Features:

  • Advance spot reservation
  • Navigation to free spot
  • Automatic payment (ANPR + account)
  • Occupancy statistics for planning

Data for a Healthy City

Monitored Parameters

Air Quality

  • PM2.5 / PM10 (particles)
  • NO2, O3, SO2, CO
  • VOC (volatile organic compounds)
  • Calculated AQI index

Noise

  • Continuous dB level
  • Frequency analysis (source identification)
  • Affected zone mapping

Weather

  • Temperature, humidity
  • Atmospheric pressure
  • Precipitation, wind
  • UV radiation

Sensor Network

Fixed Stations (reference-grade)

  • High precision, certified
  • Cost: €5,000-50,000
  • Density: 1 per 10-50km²
  • Professional calibration

Low-Cost Sensors (screening)

  • Acceptable precision after calibration
  • Cost: €100-1,000
  • Density: 1 per 0.5-2km²
  • Complement reference stations

Data Usage

  • Citizen alerting (app, SMS)
  • Traffic restrictions in polluted zones
  • Informed urban planning
  • Reporting to authorities

Efficient and Sustainable Collection

Smart Bins

Fill Level Sensors

  • Technology: Ultrasonic, ToF (Time of Flight)
  • Accuracy: ±5% level
  • Communication: LoRa, NB-IoT
  • Battery: 3-5 years

Features:

  • Real-time level reporting
  • Fill prediction (ML)
  • Alert when full
  • Fire detection (optional)

Collection Route Optimization

Algorithms:

  • Collect only full bins (>80%)
  • Dynamic routing based on data
  • Traffic and restriction avoidance
  • Vehicle load balancing

Results:

  • -30% km traveled
  • -40% fuel
  • -50% overflow incidents
  • Happier citizens

Smart Sorting

Separated Bins:

  • Waste type identification (visual AI)
  • Automatic compaction
  • Gamification for recycling
  • Rewards for correct behavior

Connectivity for Millions of Devices

LPWAN Technologies

LoRaWAN

  • Frequency: 868MHz (EU)
  • Range: 2-15km
  • Data rate: 0.3-50 kbps
  • Battery: 10+ years for sensors
  • Ideal for: Sensors, metering

NB-IoT

  • Uses existing mobile network
  • Superior indoor penetration
  • Guaranteed QoS
  • Ideal for: Critical applications

Sigfox

  • Third-party operated network
  • Ultra-low power
  • Short messages (12 bytes)
  • Ideal for: Simple asset tracking

Smart City Network Architecture

Field Sensors → Gateways → Network Server → IoT Platform
                                                   ↓
                                            Vertical Applications
                                            (Lighting, Parking, etc.)

Deployment Considerations

Gateway Placement:

  • Height: Buildings, telco towers
  • Coverage: Overlap for redundancy
  • Backhaul: Fiber or 4G

Security:

  • End-to-end encryption (AES-128)
  • Device authentication
  • Network segmentation

Unifying City Data

IoT Platform for Smart City

Core Features:

  • Device management (provisioning, OTA)
  • Data ingestion (millions of messages/day)
  • Time-series storage
  • Alerting and rules engine
  • Visualization and dashboards
  • API for integration

Options:

  • ThingsBoard (open source)
  • AWS IoT / Azure IoT
  • Specialized platforms (Libelium, TTN)

City Operating System

Concept: Unified platform integrating all city systems:

  • Public lighting
  • Parking
  • Traffic and signaling
  • Environmental monitoring
  • Emergency services
  • Utilities (water, energy)

Benefits:

  • Single source of truth
  • Cross-domain correlations
  • Unified dashboard for operators
  • Open data for citizens/developers

Interoperability

Standards:

  • FIWARE (EU standard for Smart Cities)
  • NGSI-LD (data model)
  • oneM2M (IoT interoperability)

Successful Implementations

Barcelona, Spain

Project: Integrated City OS

Implementation:

  • 19,500 smart energy meters
  • 1,100 parking sensors
  • LED lighting with dimming
  • Smart park irrigation

Results:

  • €75M/year energy savings
  • 25% park water consumption reduction
  • 20% parking revenue increase

Santander, Spain

Project: SmartSantander (EU pilot)

Implementation:

  • 20,000+ IoT sensors
  • Experimental platform
  • Parking, environment, traffic

Results:

  • Laboratory for new technologies
  • Model replicated in other cities
  • Open data for research

Songdo, South Korea

Project: Smart City from scratch

Implementation:

  • Everything connected from construction
  • Pneumatic waste collection
  • Integrated building automation

Results:

  • 76% recycling rate
  • 30% emission reduction vs traditional city

The Road to Smart City

Implementation Phases

Phase 1: Pilot (6-12 months)

  • Priority vertical selection
  • Limited pilot zone
  • Proof of concept
  • Lessons learned

Phase 2: Scale-up (1-2 years)

  • City-wide extension
  • Integration with existing systems
  • Staff training
  • Citizen communication

Phase 3: Maturation (ongoing)

  • Continuous optimization
  • New verticals
  • Open innovation
  • Replication in other cities

Funding Sources

European Funds:

  • Horizon Europe (research)
  • Digital Europe Programme
  • Recovery and Resilience Facility
  • Structural funds

Business Models:

  • PPP (Public-Private Partnership)
  • ESCO (Energy Service Company)
  • As-a-Service (OpEx vs CapEx)

Demonstrable ROI:

  • Operational savings
  • New revenues (parking, data)
  • Cost avoidance (preventive maintenance)

Building Smart Cities Together

Smart City is not a destination, but a continuous journey of improving urban life through technology.

Steps for Local Administrations

  1. Strategy - Long-term vision, clear priorities
  2. Pilot - Test small before expanding
  3. Partnerships - Technology + local expertise
  4. Open Data - Innovation ecosystem
  5. Citizens - Involvement and continuous feedback

Torcip Solutions for Smart City

IoT Hardware:

  • Environmental sensors (air, noise, weather)
  • Lighting controllers
  • LoRaWAN gateways
  • Parking sensors

Firmware and Software:

  • Complete LoRaWAN stack
  • IoT platform integration
  • Custom applications
  • Operational dashboards

Services:

  • Architecture consulting
  • Pilot and proof of concept
  • Deployment and integration
  • Support and maintenance

Experience:

  • Pilot projects in Romania
  • Partnerships with municipalities
  • European funds integration

Contact us for a discussion about how we can transform your city into a Smart City.

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