Demonstration F2F meeting 29-30 October 2015 Sapporo, Japan
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DemonstrationF2F meeting 29-30 October 2015 Sapporo, Japan
Lemonbeat smart Device Language (LsDL)RWE is first mover in SmartHome. Based on this, Lemonbeat was created as a follow up technology in this area. Our practical experience was helpful to overcome known limitations.
This new approach has a lot of opportunities above the previous technic. It can support a very large spread of use cases in different industries.
LsDL is a generic approach on application level. We believe that LsDL connect all devices in the Web of things with each other. In short: Each device can explain itself and describe its own values. New devices are immediately identified and integrated into the network. New devices can be integrated without any supporting information. The units are self-
explanatory through LsDL. The status of each device is permanently observed. A status change immediately triggers a
defined follow-up activity. Activities can be automated. Device behavior can be changed during runtime.
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3
Content of the demonstration
What we want to present
Discovery and inclusion of a device - Request of value description 3 examples of a traffic light device Configuration values and services for each example
- Virtual Values- Calculation- Actions- State machines- Timer
Running - All transactions are transparent through using Wireshark – you can see the complete flow of data
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Functionality of state machines in LsDL
red
yellow
green
C4: V11 == 1A2: red = 0, green = 1
V11 = (V11 + 1) % 3
A device can support virtual values, which are values that can be configured externally. These values can be usedas a variable when doing complex calculations and state machines.
Calc. 1
Calc. 2
C3: P2.V1 == 1A1: V11=C2
C5: V11 == 2A3: yellow = 1,green = 0
C6: V11 == 0A4: red = 1, yellow = 0
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Functionality of state machines in LsDL
red
yellow
green
C4: V11 == 1A2: yellow = 1V11 = (V11 + 1) % 4
To change functionality, states, actions and calculationscan be added or removed
Calc. 1
Calc. 2
C3: P2.V1 == 1A1: V11=C2
C5: V11 == 3A3: yellow = 1,green = 0
C6: V11 == 0A4: red = 1, yellow = 0
red &yellow
C4: V11 == 2A2: red = 0, yellow = 0, green = 1
6
Functionality of state machines in LsDL
red
yellow
green
C4: V11 == 1A2: yellow = 1V11 = (V11 + 1) % 4
Calc. 1
Calc. 2
C3: P2.V1 == 1A1: V11=C2
C5: V11 == 3A3: yellow = 1,green = 0 start T1
C6: V11 == 0A4: red = 1, yellow = 0 stop T1, stop T2
red &yellow
C7: V11 == 2A5: red = 0, yellow = 0, green = 1
T1: in 500 ms execute : A6A6: yellow = 0, start T2
T2: in 500 ms execute : A7A7: yellow = 1, start T1
Timers are in milli seconds,after a timer is expired, it canexecute an action
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