Method and computer program product for modernization of an elevator installation

• US 20030121728A1
• Filed: 12/11/2002
• Published: 07/03/2003
• Est. Priority Date: 12/17/2001
• Status: Active Grant

• Current Assignee: Inventio AG (Schindler Holding AG)
• Original Assignee: Inventio AG (Schindler Holding AG)
• Inventors: Friedli, Paul
• Granted Patent: US 6,935,465 B2
• Time in Patent Office: Days
• US Class Current: 187/247
• CPC Class Codes: B66B 1/18 with means for storing pulses controlling the movements of several cars or cages B66B1/2458 takes precedence
• CPC Class Codes: B66B 19/007 method for modernisation of elevators

Abstract

A method and a computer program product for the modernization of an elevator installation having at least one elevator and at least one elevator control for controlling the elevator by way of at least one call report. The elevator installation is equipped with a destination call control during preparatory operations for modernization which control includes at least one floor terminal for the input of destination call reports or for the recognition of identification codes of users. The destination call control also includes at least one computing unit for evaluating the destination call reports or for association of destination floors with recognized identification codes. The computing unit issues at least one destination signal and controls the elevator installation by way of at least one device. The device reads the destination signal, converts it into at least one call report and controls an existing elevator control by the call report.

Claims

1. A method of modernizing an elevator installation having at least one elevator controlled by at least one elevator control by way of at least one call report, comprising:

a. installing at least one floor terminal at each floor served by an elevator controlled by an elevator control for the input of destination call reports or for recognition of identification codes of users;

b. installing at least one computing unit and connecting the at least one computing unit to said floor terminals for evaluating the destination call reports or for association of destination floors with recognized ones of the identification codes and for the output of at least one destination signal; and

c. installing at least one modernizing device and connecting the at least one modernizing device to said floor terminals and said at least one computing unit for reading the destination signal, for converting the destination signal into at least one call report and for controlling the elevator control by way of the call report.

2. The method according to claim 1 wherein said step c. is performed by interrupting at least one existing electrical floor call transmitter line between at least one floor call transmitter and the elevator control and connecting the elevator control by an electrical line with said modernizing device.

3. The method according to claim 1 wherein said step c. is performed by interrupting at least one existing car call transmitter line between at least one car call transmitter and the elevator control and connecting the elevator control by an electrical line with said modernizing device.

4. The method according to claim 1 including connecting with said modernizing device at least one existing electrical drive line between at least one drive and the elevator control.

5. The method according to claim 4 including detecting at least one target value of the drive line by said modernizing device and documenting the behavior of the target value over time as at least one travel time profile.

6. The method according to claim 5 including comparing at least one actually detected target value with target time profiles, selecting that travel time profile which substantially corresponds with the course over time of the actually detected target value and providing this selected travel time profile as at least one advance selector.

7. The method according to claim 1 including connecting with said modernizing device at least one output for at least one electrical car indicator line of the elevator control.

8. The method according to claim 7 including detecting at least one indicator signal of the car indicator line by said modernizing device and documenting the behavior of the indication signal over time as at least one travel time profile.

9. The method according to claim 8 including comparing at least one actually detected indication signal with target time profiles, selecting that travel time profile which substantially corresponds with the course over time of the actually detected indication signal and providing this selected travel time profile as at least one advance selector.

10. The method according to claim 1 including performing said steps a. through c. for each elevator car and associated elevator control of an elevator installation in succession whereby the elevator installation is modernized in a modular manner.

11. The method according to claim 1 including modernizing the elevator car, modernizing a drive associated with the elevator car, modernizing a conveying cable associated with the elevator car, modernizing the elevator control, and removing said at least one modernizing device from the elevator installation.

12. A computer program product for modernizing an elevator installation having at least one elevator with an elevator control for controlling the at least one elevator by way of at least one call report, comprising:

means for comparing at least one actually detected signal, the actually detected signal being at least one of at least one target value actually detected at an associated output of an elevator control and at least one indication signal actually detected at an associated output of the elevator control with a plurality of target time profiles;

means for selecting a one of the compared travel time profiles that substantially corresponds with the course of the actually detected signal over time; and

means for providing the selected one of the travel time profiles as at least one advance selector to the elevator control.