RFXCOM RFXtrx433 Especificaciones descargar pdf (Pagina 87)

List of Figures

2.1. Possible applications at home. (Adopted from: http://www.lingg-janke.de/

uploads/pics/eib-system-viele-funktionen.jpg . . . . . . . . . . . . . . 5

2.2. Two HA systems with diﬀerent topologies: The left one is a loosely connected

system, where each transmitter is assigned to only one or two receivers. The right

system uses a bus network that connects the devices bidirectionally to each other. 6

2.3. three diﬀerent energy harvesting modules for energy conversion: ECO200 is used

for motion (switches or make contacts), ECT310 uses temperature diﬀerences (for

sensors on windows or heating pipes) ECS310 uses light (suitable for all kind of

devices). Image source: http://www.enocean.com/en/energy-harvesting/ . 10

2.4. Diﬀerent ZigBee topologies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5. Three diﬀerent HE protocol types. The short bit at the start is a sync pulse, which

slightly increases the sensitivity of receivers. . . . . . . . . . . . . . . . . . . . . 13

2.6. The bit timings of the UK and EU protocol types in µs. . . . . . . . . . . . . . . 14

2.7. On/oﬀ-message of the wall switch HE307EU. . . . . . . . . . . . . . . . . . . . 14

2.8. Two IT receivers: classical devices with manual address selection on the left and a

newer one with learning capability on the right. (source: www.intertechno.at) 15

2.9. Diagram showing the structure of a HX2262/72 couple. . . . . . . . . . . . . . . 15

2.10. Data elements 0 and 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.11. All possible bit combinations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.12. Three diﬀerent gateways: RFXtrx433, TellStick and CUL. . . . . . . . . . . . . . 20

2.13. The WiﬁControl 433. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.14. Middleware as an communication layer between software, hardware and a driver. 22

2.15. Diﬀerences between a topic (a) and a service (b). Adopted image from [28] . . . 25

2.16. Two example messages: One topic message (left) and one service message (right).

Request and response are saved in the same ﬁle, but are separated by “- - -“.

MyMessage is a custom message from another .msg ﬁle. . . . . . . . . . . . . . 25

3.1. The basic structure of the communication chain. . . . . . . . . . . . . . . . . . 27

3.2. Layer model: Each part of the software chain can be seen as an abstraction layer.

The grey ﬁeld displays a middleware. . . . . . . . . . . . . . . . . . . . . . . . . 28

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RFXCOM RFXtrx433 Especificaciones Pagina 87