Básico de MiWi - Microchip Wireless e Zigbee

1. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 1
MWI
Redes sem fio com os novos
protocolos MiWi e ZigBee

2. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 2
Objetivo
Após esta aula você estará apto:
− Entender o padrão IEEE 802.15.4
− Entender o protocolo ZigBee®
− Conhecer as soluções ZigBee da Microchip
− Conhecer a especificação RF4CE
− Conhecer o protocolo MiWi
.

3. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 3
ZigBee®

4. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 4
ZigBee®
O que é ZigBee?
Padrão de Wireless Networking Protocol
− Definido pelas companhias que fazem
parte da ZigBee Alliance
Aplicações
− Wireless mesh networks
− Dispositivos de baixo consumo
− Baixa taxa de dados – alta confiabilidade

5. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 5
ZigBee®
ZigBee é o nome de um protocolo de
comunicação wireless desenvolvido pela
ZigBee Alliance baseado no padrão IEEE
802.15.4.

6. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 6
ZigBee®

7. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 7
Baixo consumo
Segurança AES 128bits
Confiabilidade
Baixo custo
Redes P2P, Star, Cluster-Tree, Mesh
Interoperabilidade
Alta Imunidade a Interferência
Porque utilizar ZigBee?

8. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 8
Segurança
− Provê a confidencialidade, a integridade e a autenticidade
da informação
− AES - Advanced Encryption Standard
− Criptografia de 128 bits
ZigBee®

9. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 9
ZigBee®
ZigBee Protocol Layers
− Application - Partially ZigBee & Vendor Defined
− Network - ZigBee Defined
− Medium Access Control Layer - IEEE 802.15.4™ Defined
− Physical Layer - IEEE 802.15.4 Defined
Security Service - ZigBee Defined

10. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 10
ZigBee®
Functional Partition
MRF24J40
Transceiver
Host PIC®
MCU
Processor
Medium Access Layer (MAC)
2.4 GHzPhysical Layer (PHY)
Network Layer (NWK)
Customer
Applications
Security(SEC) Smart Energy
Profile
Microchip ZigBee Platform
Application Support (APS)

11. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 11
ZigBee®
10,000
1,000
100
10
1
1 10 100 1,000 10,000 100,000
Distância(metros)
Cellular
Technologies
GSM, GPRS
Cellular
Technologies
GSM, GPRS
WLAN Technologies
IEEE802.11
WLAN Technologies
IEEE802.11ZigBee
IEEE 802.15.4™
BluetoothBluetooth
Comaparação entre Distância x Velocidade)
Data Rate (kbps)

12. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 12
IEEE Std 802.15.4™-2006(Revision of IEEE Std 802.15.4-2003)

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Define um protocolo e a compatibilidade de
interconexão para dispositivos de comunicação de baixa
taxa de dados, baixa potência, baixa complexidade e
pequeno alcance utilizados em WPAN ( wireless
personal area network).
IEEE Std 802.15.4™-2006(Revision of IEEE Std 802.15.4-2003)

14. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 14
IEEE 802.15.4
ZigBee,Miwi,
Protocolos
Proprietários
Medium Access Layer (MAC)
2.4 GHzPhysical Layer (PHY)
Network Layer (NWK)
Customer
Applications
Security(SEC) Smart Energy
Profile
Microchip ZigBee Platform
Application Support (APS)
IEEE Std 802.15.4™-2006(Revision of IEEE Std 802.15.4-2003)

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IEEE 802.15.4™ PHY

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868/915 MHz direct sequence spread spectrum
(DSSS) , binary phase-shift keying (BPSK)
modulation
868/915 MHz DSSS offset quadrature phase-shift
keying (O-QPSK) modulation
868/915 MHz parallel sequence spread spectrum
(PSSS) BPSK and amplitude shift keying
(ASK) modulation
2450 MHz DSSS O-QPSK modulation
IEEE 802.15.4™ PHY

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IEEE 802.15.4™ PHY
2.4 GHz PHY Channel Assignment
5 MHz3 MHz
2483.5
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
2400 24802410 2420 2430 2440 2450 2460 2470
Frequency (MHz)
Channel:
Channel SpacingBandwidth

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2483.5
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
2400 24802410 2420 2430 2440 2450 2460 2470
Frequency (MHz)
Channel:
IEEE 802.15.4™ vs 802.11
2.4 GHz PHY Channel Assignment
IEEE 802.15.4
vs.
IEEE 802.11
2412
Channel 1
2437
Channel 6
2462
Channel 11
22 MHz

19. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 19
IEEE 802.11

20. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 20
Para estarem de acordo com a RESOLUÇÃO
ANATEL N§ 506/2008 (Radiação Restrita) os
equipamentos que utilizam Tecnologia de
Espalhamento Espectral devem operar em 902-907,5
MHz, 915-928 MHz, 2400-2483,5MHz
IEEE 802.15.4™ PHY

21. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 21
IEEE Std 802.15.4™-2006(Revision of IEEE Std 802.15.4-2003)

22. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 22
IEEE Std 802.15.4™-2006(Revision of IEEE Std 802.15.4-2003)
Camada MAC
É a camada responsável por realizar o controle de
acesso ao meio (MAC medium access control):
— Associação e a desassociação de dispositivos
— Suporta um dispositivo com segurança AES 128
— Implementa o CSMA-CA para o acesso ao canal
— Implementa o socket entre dois dispositivos

23. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 23
Soluções ZigBee
Microchip

24. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 24
Transceivers
ZigBee®
Product Solutions
MRF24J40
2.4GHz, IEEE802.15.4
PHY and MAC
MRF24J40
2.4GHz, IEEE802.15.4
PHY and MAC
ZigBee and MiWi
Transceiver
Planned
Production
Beta
Modules Stacks
MRF24J40MA
2.4GHz FCC certified
Low Power
MRF24J40MA
2.4GHz FCC certified
Low Power
MRF24J40MB
2.4GHz FCC certified
PA and LNA
PCB Antenna
MRF24J40MB
2.4GHz FCC certified
PA and LNA
PCB Antenna
ZigBee Residential
ZigBee Certified
ZigBee Residential
ZigBee Certified
MiWi P2P
Peer-to-Peer Protocol
MiWi P2P
Peer-to-Peer Protocol
ZigBee PRO
ZigBee Certified
ZigBee PRO
ZigBee Certified
MiWi™ Mesh
Mesh Protocol
MiWi™ Mesh
Mesh Protocol
MRF24J40MC
2.4GHz FCC certified
PA and LNA
External Antenna
MRF24J40MC
2.4GHz FCC certified
PA and LNA
External Antenna
ZigBee Profiles
Smart Energy 1.0
ZigBee Profiles
Smart Energy 1.0
ZigBee Profiles
Smart Energy 2.0 (IP)
ZigBee Profiles
Smart Energy 2.0 (IP)

25. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 25
ZigBee®
SW Product Solutions
ZigBee 2006 Protocol Stack - Free
ZigBee RF4CE - Disponível em breve
ZigBee(R) PRO Wireless Networking Protocol Stack USD
995.00
ZigBee® Smart Energy Profile (SEP) Suite - Disponível
em breve
MiWi Development Environment Wireless Networking
Protocol Stack - FREE
www.microchip.com/wireless

26. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 26
ZigBee®
HW Product Solutions

27. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 27
Certified RF Design Partners

28. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 28
ZigBee Alliance

29. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 29
ZigBee Alliance
“ O ZigBee Alliance é uma associação de
companhias que trabalham em conjunto para
garantir a confiabilidade, custo baixo, baixo
consumo, interoperabilidade em rede wireless,
monitorando e controlando os produtos
baseados em um padrão global aberto. ”
(www.zigbee.org)

30. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 30
Promoters $50.000USD/year
Tem direito à uma cadeira na mesa de diretores da ZigBee
Alliance
Revisa especificações propostas
Direito à voto
Participants $9.000USD/year
Contribuir com as especificações técnicas
Adopters $3500USD/year
Usar o logo
Acesso as especificações
ZigBee Alliance

31. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 31
Quando é necessário participar
da ZigBee Alliance

32. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 32
ZigBee®
Perguntas?

33. © 2010 Microchip Technology Incorporated. All Rights Reserved. Class Title Slide 33
O Protocolo ZigBee®
Elementos da ZigBee Network

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Dispositivos
IEEE 802.15.4™ Network Device Types
− Full Function Devices - FFD
− Reduced Function Devices - RFD
IEEE 802.15.4 Network Device Roles
− IEEE Pan Coordinator ZigBee®
Coordinator FFD
− IEEE Coordinator ZigBee Router FFD
− IEEE Device ZigBee EndDevice RFD
Device Types vs. Device Roles

35. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 35
ZigBee®
Device Roles
As redes ZigBee incluem estes dispositivos:
− Coordinator
− Routers
− End Devices

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ZigBee®
Device Coordinator
Cria a Rede
Habilita outros nós
para entrar na rede
Rádio sempre ligado
Mains powered
Requer muita memória
de programa e
memória de dados

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ZigBee®
Device
Router
Estende a área de
cobertura da rede
Pode ter filhos
Providencia rotas
alternativas para o tráfego
Capaz de fazer
comunicação peer-to-peer
Rádio sempre ligado
Requer relativamente
muita memória de
programa e memória de
dados

38. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 38
ZigBee®
Device
Reduced Function End Device
Pode comunicar
apenas com o parent
node
Pode ser alimentado
por bateria
Requer pouca RAM
e ROM

39. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 39
Network Topology
Star Topology
− Controle
centralizado
− Pode cobrir
uma área
limitada
C
RFD
RFD
RFD
Coordinator
RFD

40. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 40
O coordenador é o responsável por
inicializar a rede e manter os dispositivos
conectados na mesma. Todos os outros
dispositivos, denominados END DEVICES,
se comunicam apenas com o coordenador.
Se um dispositivo precisa enviar dados para
outro dispositivo, ele envia o dado para o
coordenador então este encaminha o dado
para o destinatário.
Network Topology
Star Topology

41. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 41
ZigBee®
Network Topology
Mesh
− Qualquer FFD
pode comunicar
diretamente com
qualquer outro FFD
na rede
− Pode cobrir uma
larga área (multi-
hop)
R4
R3
C Coordinator
R2
R1
RFD
RFD

42. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 42
Coordinator (FFD)
Router (FFD)
Reduced Function Device (RFD)
PAN = Personal Area Network
Max devices in a PAN = 65536 (ZigBee)
2^16
Mesh
Star
PAN
ZigBee®
Network Topology
Personal Area Network

43. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 43
ZigBee®
Network Topology
Network Depth
Depth = 2
Depth = 1
Coordinator (FFD)
Router (FFD)
Reduced Function Device (RFD)

44. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 44
Star
Generating a ZigBee®
Topology
Structure
MAXIMUM DEPTH = 1
Coordinator (FFD)
Router (FFD)
Reduced Function Device (RFD)

45. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 45
Linear
Generating a ZigBee®
Topology
Structure
MAXIMUM Children = 1
Coordinator
Router 1
Router 2
RFD Coordinator (FFD)
Router (FFD)
Reduced Function Device (RFD)

46. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 46
Mesh
Generating a ZigBee®
Topology
Structure
MAXIMUM Depth = x
MAXIMUM Children = y
PermitJoin Duration
Coordinator (FFD)
Router (FFD)
Reduced Function Device (RFD)

47. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 47
ZigBee®
Device Types
Perguntas?

48. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 48
RF4CE

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ZigBee RF4CE
ZigBee Remote Control fornece um padrão global para
controles remotos de RF, comunicação bidirecional de
longo alcance e grande vida útil da bateria.
Ele foi projetado para uma variedade de dispositivos
eletrônicos de consumo, incluindo equipamentos de HDTV
teatro, set-top boxes e outros equipamentos de áudio.

50. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 50
Microchip’s Certified ZigBee RF4CE Compliant Platform
Pilha certificada ZigBee RF4CE para a família de
microcontroladores PIC®
MRF24J40, MRF24J40MA, MRF24J40MB 2.4GHz IEEE
802.15.4 transceiver/modules, ou outro módulo compatível
Padrão baseado na pilha P2P para RF4CE(RF for
Consumer Electronics)
ZigBee RF4CE

51. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 51
ZigBee RF4CE

52. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 52
ZigBee RF4CE

53. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 53
ZigBee RF4CE
Vídeo RF4CE Microchip

54. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 54
Perguntas RF4CE?

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MiWi

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Miwi
O MiWi™ Wireless Networking Protocol é um protocolo
simples projetado para baixa taxa de dados, pequena
distância e para redes de baixo custo.
É fundamentalmente baseado no padrão IEEE 802.15.4™
para wireless personal area networks (WPANs) .
É uma alternativa de fácil uso para comunicação wireless
Tem um custo menor para pequenas redes, com poucos
saltos entre os nós.

57. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 57
Características
Uma rede utilizando o protocolo MiWi é capaz de
ter no máximo 1024 dispositivos na rede.
Cada coordenador é capaz de ter 127 dispositivos
coordenados por ele, e uma rede pode ter o
máximo de oito coordenadores.
Os pacotes de dados podem ter no máximo
quatro hops (pulos) na rede.

58. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 58
Menor utilização de memória
Menor utilização de processamento
Não há necessidade de certificações adicionais
Disponibilizada como código aberto
Implementa as topologias de rede Star, Tree e
Mesh
Características

59. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 59
Miwi

60. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 60
MiApp - Usando a camada de interface MiApp, o
desenvolvedor do aplicativo pode facilmente alternar entre
diferentes protocolos sem fio, tais como MiWi Mesh e MiWi
P2P sem ter que mudar o firmware do aplicativo.
MiMAC - Usando camada MiMAC, o desenvolvedor pode
facilmente alternar entre diferentes transceptores de RF, tais
como MRF24J40 e MRF89XA.
As principais vantagens do MiWi são a facilidade no
desenvolvimento de aplicações sem fio e também a facilidade
de portabilidade das aplicações em diferentes transceptores
de RF da Microchip e diferentes protocolos sem fio,
dependendo dos requisitos de aplicação, sem ter que mudar o
firmware do aplicativo.
Miwi

61. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 61

62. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 62

63. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 63
MiWi P2P
Redes peer-to-peer (P2P) ou estrela
Interface simples e concisa
Comunicação segura
Modifica a camada Media Access Control (MAC)
adicionando comandos que simplificam o
handshaking
Reduz o máximo a pilha para caber em
um microcontrolador mais barato

64. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 64
16 canais em 2.4 GHz
Suporta modo sleep
Possui Energy Detect (ED) procura um canal para
operar que possua um baixo patamar de ruído
Suporta todos os modos de segurança definidos no
IEEE 802.15.4
Possui frequency agility (channel hopping)
MiWi P2P

65. © 2010 Microchip Technology Incorporated. All Rights Reserved. 1461 ZIG Slide 65
MiWi P2P x MiWi x
ZigBee

66. © 2010 Microchip Technology Incorporated. All Rights Reserved. Class Title Slide 66
Licensing
According to ZigBee®
Alliance:
 Only members may use ZigBee specifications "in the
development of a product for sale"
Microchip is a ZigBee Participant Member:
 We have license rights to make and distribute Microchip’s
ZigBee stack software
According to ZigBee and Microchip:
 If you intend to use Microchip’s stack software in the
development of a product for sale, then you must be a ZigBee
member
 You may not modify or create derivatives of Microchip’s stack
software
It is your responsibility:
 To read Microchip’s license agreement and familiarize
yourself with ZigBee’s membership
 For more information, go to www.zigbee.org

67. © 2010 Microchip Technology Incorporated. All Rights Reserved. Class Title Slide 67
References
IEEE 802.15.4™ -2003
 http://standards.ieee.org/getieee802/download/802.15.4-2
IEEE OUI
 https://standards.ieee.org/regauth/oui/forms/OUI-form.shtml
ZigBee®
Protocol
 www.zigbee.org
AN1255 ZigBee Protocol application note,
www.microchip.com/zigbee

68. © 2010 Microchip Technology Incorporated. All Rights Reserved. Class Title Slide 68
Obrigado!
Fim

69. © 2010 Microchip Technology Incorporated. All Rights Reserved. Class Title Slide 69
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC, KeeLoq, KeeLoq
logo, MPLAB, PIC, PICmicro, PICSTART, PIC32
logo, rfPIC and UNI/O are
registered trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL and The Embedded Control Solutions Company are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense,
HI-TIDE, In Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB‑
Certified logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code
Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode,
Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are
trademarks of Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their respective
companies.
© 2010, Microchip Technology Incorporated, All Rights Reserved.