Device and method for controlling a window or window shading device based on measurements and a setpoint

Abstract

The invention relates to a device to control a window or a window shading device, based on at least indoor temperature or indoor humidity, and a temperature setpoint or a humidity setpoint. The devices of the invention have a number of interesting applications, such as the control of temperature or humidity in the room. The invention also discloses embodiments including the detection of the presence or absence of a human being in the room.

1 . A device to control one or more window related devices in a room, the device comprising:
 one or more input ports to a receive one or more setpoints of a physical field, and indoor measurements of the physical field from a sensor inside the room;   an output port configured to send commands to the one or more windows related devices;   a processing logic configured to calculate commands to define one or more states of said one or more windows related devices based at least on said one or more setpoints of the physical field, and said indoor measurements of the physical field.   
     
     
         2 . The device of  claim 1 , wherein the processing logic is further configured to calculate commands to define one or more states of said one or more windows related devices based on a detection of one of a presence or an absence of a human being in the room. 
     
     
         3 . The device of  claim 1 , wherein the processing logic is configured to calculate commands to set one or more states of one or more window related devices to an open state, if the indoor measurements of the physical field are above the one or more setpoints of the physical filed, and the absence of a human being in the room is detected. 
     
     
         4 . The device of  claim 1 , wherein the processing logic is configured to calculate an opening duration, based at least on the indoor measurements of the physical field, and one of an outside humidity or an outside temperature. 
     
     
         5 . The device of  claim 1 , wherein the processing logic is further configured to calculate commands to close the window related device, if the indoor measurements of the physical field are below the one or more humidity setpoints of the physical field. 
     
     
         6 . The device of  claim 1 , wherein said physical field is humidity, and said sensor is a humidity sensor. 
     
     
         7 . The device of  claim 1 , wherein said physical field is a concentration of CO 2 , and said sensor is a concentration of CO 2  sensor. 
     
     
         8 . A Method to control a physical field in a room according to one or more setpoints of the physical field, said method comprising:
 receiving indoor measurements of the physical field (P in ) from a sensor inside the room;   calculating commands to define one or more states of one or more window related devices based at least on said one or more setpoints of the physical field, said indoor measurements of a physical field.   
     
     
         9 . The device of  claim 1 , wherein said device is a window shading controller. 
     
     
         10 . The device of  claim 1 , wherein said one or more window related devices comprise one or more windows. 
     
     
         11 . The device of  claim 10 , wherein said device is configured to send to the windows commands to switch between an open and a closed position. 
     
     
         12 . The device of  claim 1 , wherein said output port is configured to send the commands indirectly to the one or more window related devices, by sending the commands to a remote control. 
     
     
         13 . The device of  claim 1 , further configured to send commands to the one or more window shading devices, only when it is allowed by a configuration of a central lock in communication with the device, said configuration being manually defined by a user on the central lock.