Method for installation or repair of an elevator door and device for verifying this intallation or repair

Abstract

Method for installing or repairing an elevator door, comprising a first step in which the installation or repair is carried out on the elevator door, and a second step in which the installation or repair is checked before commissioning for general use. In the second step, the elevator door is opened and closed once or multiple times, in particular 2, 3, or 4 times, with the vibration of the elevator door being measured. A vibration profile, in particular an average vibration profile, is then created from the multiple opening and / or closing processes. The vibration profile is then compared with at least one comparison value. Depending on the comparison, a signal is output to accept or reject the installation or repair for general use.

Description

[0001] The invention relates to a method for installing or repairing an elevator door, which comprises a test method for evaluating the installation or repair.

[0002] Methods of the type mentioned are known from the state of the art, which evaluate the quality of the installation or repair of an elevator door through expert observation.

[0003] It is an object of the invention to provide an improved method of the type mentioned.

[0004] This object is achieved by a method according to claim 1 and a device according to claim 11. Advantageous embodiments are specified in the further dependent claims.

[0005] The method according to the invention is a method for installing or repairing an elevator door, comprising a first method step in which the installation or repair is carried out on the elevator door, and a second method step in which the installation or repair is checked before commissioning for general use. In the second method step, the elevator door is first opened and closed once or multiple times, in particular 2, 3, or 4 times, with the vibration of the elevator door being measured. A vibration profile, in particular an average vibration profile, is then generated from the multiple opening and / or closing processes. The vibration profile is then compared with at least one comparison value. Depending on the comparison, a signal is output to accept or reject the installation or repair for general use.

[0006] The procedure can offer the advantage of objectively determining quality. The procedure can offer the advantage of avoiding errors caused by manual inspection. The procedure can offer the advantage of automatically transmitting the inspection results to a service center.

[0007] Commissioning for general use may mean ending the service mode for using the elevator for general passenger transport. Installation or repair before commissioning for general use may mean performing the installation or repair in the service module of the elevator, where general passenger transport is not permitted.

[0008] Vibration signature is a data set that provides a measure of vibration over time or distance.

[0009] Preferably, the elevator door is opened and closed with measurement of the vibration of the elevator door until sufficient data for a vibration profile has been measured, so that a function of the measured data or the vibration profile, which in particular represents a data quality, exceeds or falls below a threshold value.

[0010] This function can, in particular, be a statistical function. Exceeding or falling below the threshold value indicates that the data quality is sufficient to perform the procedure with sufficient reliability.

[0011] This can have the advantage of consistently achieving a comparable quality of the process, so that the signals from the process are comparable at different elevator doors. This can have the advantage of making the process more reliable.

[0012] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using a comparison with a predetermined reference profile.

[0013] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using the evaluation of whether a threshold value is exceeded or undershot.

[0014] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using the evaluation of whether at least one amplitude of the vibration profile exceeds or falls below a threshold value.

[0015] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using the evaluation of whether the at least one amplitude of the vibration profile periodically exceeds or falls below a threshold value.

[0016] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using the detection of a specific frequency, in particular a natural frequency of the elevator door.

[0017] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using a frequency analysis.

[0018] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using a wavelet analysis.

[0019] Preferably, the comparison of the vibration profile with the at least one comparison value is carried out using pattern recognition.

[0020] The device according to the invention is a device for checking the installation or repair of an elevator door with a vibration sensor for measuring the vibration of the elevator door, with an activation device which is designed to initiate, once or several times after installation or repair, an opening and closing of the elevator door with the measurement of the vibration of the elevator door by the vibration sensor, with a collection device which is designed to form a vibration profile from the measurement of the above-mentioned vibration, with a comparison device which is designed to carry out a comparison of the vibration profile with at least one comparison value, and with an output device,which is designed to output a signal for accepting or rejecting the installation or repair of the elevator door before activation by the activation device, depending on the comparison of the comparison device, wherein the device is designed to carry out one of the aforementioned methods.

[0021] Further features of the invention are indicated in the drawings.

[0022] The advantages mentioned can also be realized for combinations of features in which they are not mentioned. Overview of the drawings:

[0023] Embodiments of the invention are illustrated in the drawings and explained in more detail below. Like reference numerals in the individual figures denote corresponding elements. They show: Fig. 1Flowchart of the process Detailed description of the drawing:

[0024] Fig. 1 shows a flowchart of the method 10. The process begins with the installation or repair of the elevator door 11. This is the first method step 10. The first method step 10 is followed by the second method step 20.

[0025] In the second method step 20, the elevator door is first opened and closed, and the vibration of the elevator door is measured. The measurement can be performed using a vibration sensor located on the elevator door. The vibration sensor can also be located on the light grid of the elevator car.

[0026] After measuring an opening and closing process, a comparison 22 of the measured data is made with a comparison value 23. If the comparison value is not reached, another measurement of an opening and closing process is made, and the measured data is linked to the previously measured data, and the linked data is again compared with the comparison value. If the comparison value is not reached, process step 20 is repeatedly restarted until the comparison shows that the comparison value has been reached.

[0027] The data is then combined to create a vibration signature 24.

[0028] The vibration signature is then subjected to a comparison 25 with a reference vibration signature 26. If the comparison 25 reveals sufficient similarity between the vibration signature and the reference vibration signature as a function of one or more threshold values, the second method step outputs a signal for acceptance of the installation or repair 31. If the comparison 25 does not reveal sufficient similarity between the vibration signature and the reference vibration signature as a function of one or more threshold values, the second method step outputs a signal for rejection of the installation or repair 31.

[0029] The acceptance 31 and rejection 32 signals are transmitted wirelessly via Internet Protocol to a server. The server automatically informs the service technician of a service company about the signal via a message over the Internet. List of reference symbols:

[0030] 10First step 11Installation or repair of the elevator door 20Second process step 21Opening and closing the door with vibration measurement 22Comparison 23Threshold value 24Creation or output of the vibration profile 25Comparison of the vibration profile 26Comparison value 31Signal for acceptance of installation or repair 32Signal for rejection of installation or repair

Claims

1. Method for installing or repairing a lift door - with the first method step: - installation or repair on the lift door - and with the second method step - for checking the installation or repair before commissioning for general use: - single or multiple, in particular 2, 3 or 4 times opening and closing of the lift door with measurement of the vibration of the lift door, - creation of a vibration profile from the multiple opening and / or closing processes, - comparison of the vibration profile with at least one reference value, - output of a signal for acceptance or rejection of the installation or repair for general use depending on the comparison.

2. Method according to any preceding claim characterized in that- the opening and closing of the elevator door with measurement of the vibration of the elevator door - occurs as often as necessary - until sufficient data for a vibration profile has been measured, so that a function of the measured data or the vibration profile, which in particular represents a data quality, exceeds or falls below a threshold value.

3. Method according to any preceding claim characterized in that - the comparison is carried out using - a comparison with a given reference profile.

4. Method according to any preceding claim characterized in that - the comparison is carried out using the evaluation, - whether a threshold value is exceeded or undercut.

5. Method according to any preceding claim characterized in that - the comparison is carried out using the evaluation, - whether at least one amplitude of the vibration profile exceeds or falls below a threshold value.

6. Method according to any preceding claim characterized in that - the comparison is carried out using the evaluation, - whether at least one amplitude of the vibration profile periodically exceeds or falls below a threshold value.

7. Method according to any preceding claim characterized in that - the comparison is carried out using - the detection of a specific frequency, in particular a natural frequency of the elevator door.

8. Method according to any preceding claim characterized in that - the comparison is carried out using - a frequency analysis.

9. Method according to any preceding claim characterized in that - the comparison is carried out using - a wavelet analysis.

10. Method according to any preceding claim characterized in that - the comparison is carried out using - pattern recognition.

11. Device for checking the installation or repair of an elevator door - with a vibration sensor for measuring the vibration of the elevator door, - with an activation device which is designed - after installation or repair - to initiate the opening and closing of the elevator door once or repeatedly with the measurement of the vibration of the elevator door by the vibration sensor - with a collection device which is designed - to form a vibration profile from the vibration measurement, - with a comparison device which is designed - to compare the vibration profile with at least one comparison value, and - with an output device which is designed - depending on the comparison of the comparison device - to output a signal for accepting or rejecting the installation or repair of the elevator door, characterized in thatthe device is designed to carry out a method according to one of the preceding claims.

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