System for heating, ventilation, air-conditioning

Patent metadata

Field	Value
Publication number	US-11333382-B2
Application number	US-202016931671-A
Country	US
Kind code	B2
Filing date	Jul 17, 2020
Priority date	Jul 19, 2019
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

Various embodiments include a site controller comprising: a processor; a memory storing a parametrized model for control of a HVAC system; a sensor interface connected to a first sensor; an actuator interface connected to a first actuator; and a cloud interface connected to a remote controller. The processor is configured to: read a first set of sensor signals from the first sensor; process the first set of signals into a set of measured values; transmit the measured values to the remote controller; in response, receive a set of model parameters from the remote controller; read the parametrized model from the memory; read an additional sensor signal from the first sensor; compute an actuator setting signal from the additional signal using the parametrized model and the set of model parameters; and transmit the actuator setting signal to the first actuator.

First claim

The invention claimed is:

1. A site controller comprising:
a processor;
a memory storing a model for control of a heating, ventilation, air-conditioning installation associated with the site;
a sensor interface configured to establish a connection to a first sensor;
an actuator interface configured to establish a connection to a first actuator;
a cloud interface configured to establish a connection to a remote controller located remotely from the site controller;
wherein the processor is configured to:
read a first set of sensor signals from the first sensor via the sensor interface;
process the first set of sensor signals into a first set of measured values;
transmit the first set of measured values to the remote controller via the cloud interface;
in response to the transmittal of the first set of measured values, receive a set of parameters from the remote controller via the cloud interface;
read the model from the memory;
read an additional sensor signal from the first sensor via the sensor interface;
compute an actuator setting signal from the additional sensor signal using the model and the set of parameters; and
transmit the actuator setting signal to the first actuator via the actuator interface.

2. The site controller according to claim 1 , wherein the processor is further configured to:
produce a first set of timestamp values wherein each timestamp value is associated with a sensor signal of the first set of sensor signals; and
transmit the first set of timestamp values to the remote controller via the cloud interface.

3. The site controller according to claim 1 , wherein:
the sensor interface is configured to establish a connection to a second sensor comprising a motion sensor; and
the processor is further configured to:
read a second set of sensor signals from the second sensor via the sensor interface, wherein each sensor signal of the second set of sensor signals is indicative of occupant movement;
process the second set of sensor signals into a second set of measured values; and
transmit the second set of measured values to the remote controller via the cloud interface.

4. The site controller according to claim 3 , wherein the processor is further configured to:
produce a second set of timestamp values, wherein each timestamp value is associated with a sensor signal of the second set of sensor signals; and
transmit the second set of timestamp values to the remote controller via the cloud interface.

5. The site controller according to claim 3 , wherein the processor is further configured to:
read an additional sensor signal from the second sensor via the sensor interface, wherein the additional sensor signal is indicative of occupant movement; and
compute the actuator setting signal a function of the additional sensor signal.

6. The site controller according to claim 1 , wherein the processor is further configured to:
apply the set of parameters to the model to produce an updated model; and
store the updated model in the memory.

7. The site controller according to claim 1 , wherein the sensor interface comprises a wireless sensor interface configured to establish a wireless connection to the first sensor; and
the processor is further configured to read the first set of sensor signals from the first sensor via the wireless sensor interface.

8. The site controller according to claim 3 , wherein the sensor interface comprises a wireless sensor interface configured to establish a wireless connection to the second sensor; and
the processor is further configured to read the second set of sensor signals from the second sensor via the wireless sensor interface.

9. The site controller according to claim 1 , wherein the actuator interface comprises a wireless actuator interface configured to establish a wireless connection to the first actuator; and
the processor is further configured to transmit the actuator setting signal to the first actuator via the wireless actuator interface.

10. The site controller according to claim 7 , wherein the wireless sensor interface is configured to produce signals indicative of occupant movement; and
the processor is further configured to:
read a third set of signals directly from the wireless sensor interface;
wherein at least one signal of the third set of signals is indicative of occupant movement;
process the third set of signals into a third set of measured values; and
transmit the third set of measured values to the remote controller via the cloud interface.

11. The site controller according to claim 9 , wherein:
the wireless actuator interface is configured to produce signals indicative of occupant movement; and
the processor is further configured to:
read a fourth set of signals directly from the wireless actuator interface, wherein at least one signal of the fourth set of actuator signals is indicative of occupant movement;
process the fourth set of actuator signals into a fourth set of measured values; and
transmit the fourth set of measured values to the remote controller via the cloud interface.

12. The site controller according to claim 1 , wherein:
the cloud interface comprises a wireless cloud interface configured to produce signals indicative of occupant movement; and
the processor is further configured to:
read a fifth set of signals directly from the wireless cloud interface, wherein at least one signal of the fifth set of signals is indicative of occupant movement;
process the fifth set of signals into a fifth set of measured values; and
transmit the fifth set of measured values to the remote controller via the wireless cloud interface.

13. A system comprising:
a first sensor;
a first actuator; and
a site controller in operative communication with the first sensor via a sensor interface and in operative communication with the first actuator via an actuator interface; and
wherein the site controller comprises: a processor; a memory storing a model for control of a heating, ventilation, air-conditioning installation associated with the site; and a cloud interface configured to establish a connection to a remote controller located remotely from the site controller;
wherein the processor is configured to:
read a first set of sensor signals from the first sensor via the sensor interface;
process the first set of sensor signals into a first set of measured values;
transmit the first set of measured values to the remote controller via the cloud interface;
in response to the transmittal of the first set of measured values, receive a set of parameters from the remote controller via the cloud interface;
read the model from the memory;
read an additional sensor signal from the first sensor via the sensor interface;
compute an actuator setting signal from the additional sensor signal using the model and the set of parameters; and
transmit the actuator setting signal to the first actuator via the actuator interface;
wherein, upon receipt of the actuator setting signal, the first actuator changes a setting of the first actuator.

14. A method of controlling a site comprising a first local sensor, a first local actuator, a local sensor interface, a local actuator interface, a local cloud interface, and a local memory, the method comprising:
reading a first set of sensor signals from the first local sensor via the local sensor interface;
processing the first set of sensor signals into a first set of measured values;
transmitting the first set of measured values to a remote controller via the local cloud interface, the remote controller located remotely from the first local sensor, the first

Assignees

• Siemens Schweiz Ag

Inventors

• Wang Shuo

Classifications

• G06N3/045

  Combinations of networks · CPC title

• F24F11/80

  for controlling the temperature of the supplied air · CPC title

• F24F11/62

  characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values · CPC title

• F24F2120/14

  Activity of occupants · CPC title

• G05B2219/2642

  Domotique, domestic, home control, automation, smart house · CPC title