US 2017/0288900 A1 · AUTOMATIC ADJUSTMENT OF THE MAXIMUM TOKEN HOLDING TIME IN BACNET MS/TP BUS SYSTEMS AT RUNTIME

Abstract

A method for the automatic adjustment of a maximum token holding time of a first bus participant in a BACnet MS/TP bus system. The method includes analyzing the data traffic in the bus system during a first time interval and adjusting a maximum token holding time of the first bus participant based on the analysis of the data traffic during the first time interval, whereby the analysis of the data traffic during the first time interval includes determining a data transmission pattern of a second bus participant, whereby the data transmission pattern of the second bus participant is defined by a measured data volume of the second bus participant and its distribution over time.

Claims10

Dependent claims

A method for an automatic adjustment of a maximum token holding time of a first bus participant in a BACnet MS/TP bus system, the method comprising:

analyzing, by the first bus participant, a data traffic in the bus system during a first time interval;
and
adjusting, by the first bus participant, a maximum token holding time of the first bus participant based on the analysis of the data traffic during the first time interval,
wherein the analysis of the data traffic during the first time interval comprises determining a data transmission pattern of a second bus participant, and
wherein the data transmission pattern of the second bus participant is defined by a measured data transmission volume of the second bus participant and its distribution over time.

2 more elements

A device comprising:

a BACnet MS/TP-compatible interface;
and
a communication module for transmitting and receiving data via the BACnet MS/TP-compatible interface, the communication module being configured to receive and pass on a token and is further configured:
to send unrequested data via the BACnet MS/TP-compatible interface only when the device has the token;
to pass on the token at the latest after a maximum holding time;
to analyze data traffic that can be monitored at the BACnet MS/TP-compatible interface during a first time interval;
to adjust the maximum token holding time based on the analysis of the data traffic during the first time interval;
and
to determine, in the analysis of the data traffic during the first time interval, a data transmission pattern of a device reachable during operation via the BACnet MS/TP-compatible interface,
wherein the data transmission pattern of the device reachable via the BACnet MS/TP-compatible interface is defined by a volume of transmitted data and by the distribution over time of the volume of the transmitted data.

7 more elements

Dependencies are inferred from the claim text.

Automatic adjustment of the maximum token holding time in bacnet ms/tp bus systems at runtime

Life of this patent

Automatic adjustment of the maximum token holding time in bacnet ms/tp bus systems at runtime

Life of this patent

Abstract

Claims10