Positioning system and method for determining the position of fans

Patent metadata

Field	Value
Publication number	US-11525591-B2
Application number	US-201916723682-A
Country	US
Kind code	B2
Filing date	Dec 20, 2019
Priority date	Mar 19, 2019
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

The disclosure relates to a method for determining the positions of a number of fans (Vn,m) for generating an air flow in a preferably enclosed space, which have a speed sensor for determining their position, wherein the fans (Vn,m) are arranged in rows (R1, R2, . . . , Rn) and columns (S1, S2, . . . , Sm), wherein at least the position (i, j) of one fan (Vi,j) is known.

First claim

The invention claimed is:

1. A method for determining the positions of a number of fans (V n,m ) for generating an air flow in a space, the fans each having a speed sensor for determining their position, wherein the fans (V n,m ) are arranged in rows (R 1 , R 2 , . . . , R n ) and columns (S 1 , S 2 , . . . , S m ), wherein a position (I, j) of at least one fan (V i,j ) is known, the method comprising the following steps:
a) driving the at least one fan (V i,j ) in order to initiate a rotation of at least those fans (V n,m ) which are arranged in an adjacent row or column position;
b) detecting the speed of the fans (V n,m ,) driven by the airflow generated in this manner using the speed sensor and a controller and determining the potential neighborhood positions of these fans using the controller,
c) wherein the steps a) and b) are repeated for the fans (V n,m ) respectively determined after step b) until all positions (n,m) of the fans have been determined.

2. The method according to claim 1 , wherein the fans (V n,m ) are set to idling by means of the controller prior to step a).

3. The method according to claim 1 , wherein transmission of measurement data to the controller is performed by way of the speed sensors.

4. The method according to claim 1 , wherein measuring the speed in step b) of the fans (V n,m ) driven by the generated air flow and the transmission of the data to the controller is performed by way of the speed sensors.

5. The method according to claim 1 , wherein the determining of those positions (n, m) of all fans (V n,m ) having an unknown position in a row and/or column position immediately adjacent to the fan (V i,j ) is implemented in step b) based on the position of the driving fan (V i,j ).

6. The method according to claim 1 , wherein the fan (V i,j ) with a known position is switched to idling by means of the controller after step b).

7. The method according to claim 1 , wherein driving of at least two of the fans (V n,m ) detected in step b) is performed at a predetermined, preferably maximum degree of activation.

8. The method according to claim 1 , wherein the unknown positions (n+1, m; n, m+1) of fans (V n+1,m ; V n,m+1 ) located immediately adjacent to the fan (V n,m ) driven in step b) are marked with the position of the driving fan (V n,m ).

9. The method according to claim 8 , wherein the driven fan (V n,m ) is switched to idling after marking the adjacent fans (V n+1,m ; V n,m+1 ) having an unknown position, and one of the other marked fans (V n+1,m ; V n,m+1 ) is driven at a maximum degree of activation.

10. The method according to claim 9 , wherein the speed of the adjacent fans (V n+2,m ; V n,m+2 ) having an unknown position, which are driven by the fan (V n+1,m ; V n,m+1 ), is determined by means of speed sensors, and the data is transmitted to the controller.

11. The method according to claim 10 , wherein the positions (n+2, m; n, m+2) of the adjacent fans having an unknown position are marked in step b) with the position (V n+2,m ; V n,m+2 ) of the driving fan (V n+1,m ; V n,m+1 ).

12. The method according to claim 1 , wherein, if a fan (V n+1,m ; V n,m+1 ; V n+2,m ; V n,m+2 ) is already marked, the position (n+ 1 , m; n, m+ 1 ; n+ 2 , m; n, m+ 2 ) of the fan is set to a unique specific position (i, j).

13. The method according to claim 8 , wherein one of the marked fans (V n+1,m ; V n,m+1 ) is driven until all fans (V n,m ) are determined.

14. The method for determining the positions of a number of fans (V n,m ) for generating an air flow in a space according to claim 1 , wherein a controller is provided which is configured to activate and determine the positions of the fans (V n,m ), wherein each of the fans (V n,m ) can be indirectly driven by a fan (V n+1,m ; V n,m+1 ) in an adjacent row (R 1 , R 2 , . . . , R n ) and column (S 1 , S 2 , ..., S m ), the method comprising the following steps:
a. setting the fans (V n,m ) to idling by means of the controller,
b. driving the fan (V i,j ) with a known position at a maximum degree of activation and setting the position (i, j) of the fan (V i,j ) to the known position (i, j),
c. measuring the speed of the fans (V n,m ) driven by the air flow generated and transmitting the data to the controller by means of the speed sensors,
d. determining those positions (n, m) of all fans (V n,m ) in a row and/or column position immediately adjacent to the fan (V i,j ) based on the position of the driving fan (V i,j ),
e. setting the fan (V i,j ) with the known position to idling by means of the controller,
f. driving one of at least two of the determined fans (V n,m ) at a predetermined, preferably maximum, degree of activation,
g. marking the positions (n+1, m; n, m+1) of fans (V n+1,m ; V n,m+1 ) having unknown positions located immediately adjacent to the fan (V n,m ) driven in step f) with the position of the driving fan (V n,m ),
h. switching the fan (V n,m ) driven in step f) to idling and driving a second fan (V n,m ) determined in step d) at a maximum degree of activation,
i. determining the speed of the adjacent fans (V n+1,m ; V n,m+1 ) having unknown positions, being driven by the second fan (V n,m ) by means of the speed sensors and transmitting the data to the controller,
j. marking the positions (n+1, m; n, m+1) of fans (V n+1,m ; V n,m+1 ) having unknown positions located immediately adjacent to the fan (V n,m ) driven in step i) with the position of the driving fan (V n,m ; V n,m ),
k. if a fan (V n+1,m ; V n,m+1 ) has already been marked in step g) or step j), respectively, determining and setting the position of the fan (V n+1,m ; V n,m+1 ) to a unique, specific position (n, m),
l. driving one of the fans marked in step g) or j), respectively, and repeating the steps f) to k) until all fans (V n,m ) are determined.

15. The method according to claim 14 , wherein the position (n,m) of the fan (V n+1,m ; V n,m+1 ) in step k) is determined by comparing the indices n and m of an already existing marking to the newly created marking, wherein the respective higher index represents the index for the determined position (n, m).

16. The method according to claim 15 , wherein the position (i, j) of the fan (V i,j ) is set to the value “0,0”, and if, during step k), the positions (n+1, m; n,m+1) of two immediately adjacent fans (V n+1,m ; V n,m+1 ) are known for a fan (V n,m ) and the position (n+1, m; n,m+1) of a third immediately adjacent fan (V n+1,m ; V n,m+1 ) is unknown, and if an already existing marking of the unknown position has the value “0,0”, the newly created marking not equal to “0,0” is subsequently incremented by 1.

17. The method according to claim 15 , wherein only the fans (V n+1,m ; V n,m+1 ) having the highest speed are driven in step h), if more than the immediately adjacent fans (V n+1,m ; V n,m+1 ) were driven by driving the determined and marked fans in steps f) and l).

18. The method according to claim 1 , wherein the speed sensor for determining the speed of a fan (V n,m ) is a Hall sensor.

19. The method according to claim 15 , wherein at least two fans (V n,m ) must be indirectly driven for exact positioning in steps f) to l).

Assignees

• Ebm Papst Mulfingen Gmbh & Co Kg

Inventors

• Wystup Ralph
• Humm Markus
• Rau Alexander

Classifications

• F24F11/77 Primary

  by controlling the speed of ventilators · CPC title

• F24F7/007

  with forced flow (using ducting systems F24F7/06) · CPC title

• F24F3/167

  Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed (air distribution by perforated walls F24F7/10) · CPC title

• F24F11/49 Primary

  ensuring correct operation, e.g. by trial operation or configuration checks · CPC title

• Y02B30/70

  Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating · CPC title