Assembly with a device for maintenance planning for an elevator

Abstract

Apparatus for maintenance planning for a passenger elevator with an elevator car with a car door with an accelerometer for detecting the vibration of the car door, with a collection device which is designed to create a vibration profile from the detection, with a transmission device for transmitting the vibration profile to a server, and with a server for analyzing the vibration profile, wherein the collection device is spatially connected to the elevator car and is designed to determine the deviation of the vibration profile from a reference profile and, depending on the deviation from at least one threshold value or at least one value range, to cause the transmission device to transmit the deviation and / or the vibration profile to the server, and wherein the server is spatially separated from the passenger elevator and is designed toto compare the deviation and / or the vibration profile with at least one threshold value or at least one range of values ​​and, depending on the comparison, to output a signal indicating whether no action should be taken, or whether an action should be taken during the next regular maintenance, or whether an action should be taken before the next regular maintenance.

Description

[0001] The invention relates to a device for maintenance planning.

[0002] The object of the invention is to provide a device for maintenance planning.

[0003] This object is achieved by a device according to claim 1. Advantageous embodiments are specified in the further dependent claims.

[0004] The device according to the invention is a device for maintenance planning for a passenger elevator with an elevator car with a car door with an accelerometer for detecting the vibration of the car door, with a collection device which is designed to create a vibration profile from the detection, with a transmission device for transmitting the vibration profile to a server, and with a server for analyzing the vibration profile, wherein the collection device is spatially connectable to the elevator car, in particular is connected and is designed to determine the deviation of the vibration profile from a reference profile and, depending on the deviation from at least one threshold value or at least one value range, to cause the transmission device to transmit the deviation and / or the vibration profile to the server, and wherein the server is spatially separated from the passenger elevator and is designed toto compare the deviation and / or the vibration profile with at least one threshold value or at least one range of values ​​and, depending on the comparison, to output a signal indicating whether no action should be taken, or whether an action should be taken during the next regular maintenance, or whether an action should be taken before the next regular maintenance.

[0005] The device can provide the advantage of increasing the availability of the elevator. The device can provide the advantage of reducing the intervals between regular maintenance. The device can provide the advantage of increasing the safety of people in the elevator. The device can provide the advantage that less computing power needs to be implemented in the elevator car than in the server to operate the device.

[0006] The collection device may include a memory for storing the measurement data and the vibration profile. The collection device may include a microprocessor for creating the vibration profile from the measurement data.

[0007] The measured data can be vibration amplitudes or frequencies. The vibration profile can represent vibration amplitudes or frequencies as a function of time or a travel distance.

[0008] The at least one threshold value can be one, two, three, or more numerical values. The at least one threshold value can be a reference profile that, in particular, extends over essentially the same time period or length as the vibration profile.

[0009] A value range can be defined by a lower and an upper threshold.

[0010] The signal can be an entry in a database. The signal can be information sent to a stationary or mobile playback device. The signal can be sent wirelessly and / or via an internet protocol.

[0011] Preferably, the transmission device is spatially connectable, in particular connected, to the elevator car. Preferably, the transmission device and the collecting device have a common housing, which is spatially connectable, in particular connected, to the elevator car.

[0012] Preferably, the transmission device is designed to transmit the deviation and / or the vibration profile to the server wirelessly and / or via an Internet protocol.

[0013] This can provide the advantage of informing a remote service company. This can provide the advantage of informing a service technician via the internet on their mobile device.

[0014] Preferably, the server performs the comparison of the vibration profile with the at least one threshold value or the at least one value range by the amplitude of the vibration exceeding a threshold value.

[0015] Preferably, the server carries out the comparison of the vibration profile with the at least one threshold value or at least one range of values ​​by the amplitude of the vibration periodically exceeding a threshold value.

[0016] Preferably, the server carries out the comparison of the vibration profile with the at least one threshold value or at least one value range by detecting a specific frequency, in particular the natural frequency of the door.

[0017] Preferably, the server carries out the comparison of the vibration profile with the at least one threshold value or at least one range of values ​​by performing a frequency analysis and / or a wavelet analysis.

[0018] Preferably, the server carries out the comparison of the vibration profile with the at least one threshold value or at least one value range by performing a frequency analysis with pattern recognition.

[0019] Further features of the invention are indicated in the drawings.

[0020] The advantages mentioned can also be realized for combinations of features in which they are not mentioned. Overview of the drawings:

[0021] 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. 1Flow diagram of the device Detailed description of the drawings:

[0022] Fig. 1 shows a flow diagram of the device 10. The process starts at the accelerometer 11. This is spatially connected to the elevator car, i.e., mounted on it.

[0023] The accelerometer 11 measures the vibration of the cabin door during the opening and closing process and transmits the measurement to the collecting device 12.

[0024] The collection device 12 is mounted on the elevator car and, in a first step 12a, creates a vibration profile from the measured values. In a second step 12b, it determines the deviation of the vibration profile from a reference profile 12c. Depending on the deviation from at least one threshold value, it then causes the transmission device 13 to transmit the deviation and / or the vibration profile to the server 14. The collection device 12 and the transmission device 13 are spatially connected to the elevator car, i.e., mounted on it.

[0025] The server 14 is not physically connected to the elevator car or the elevator. It may be located in a different city than the elevator. The server 14 compares the vibration profile with at least one threshold value or at least one range of values ​​and then, depending on the comparison 14a1, 14a2, 14a3, outputs a signal 15 indicating whether no action 15a1 should be taken, or whether an action should be taken during the next scheduled maintenance 15a2, or whether an action should be taken before the next scheduled maintenance 15a3. List of reference symbols:

[0026] 10Flow diagram of the device 11Accelerometer 12Collection device 12aVibration profile creation 12bDeviation comparison 12cReference signature 12dThreshold value 13Transmission device 14Server 14aComparison whether no action 14bComparison whether action during regular maintenance 14cComparison whether action before regular maintenance 15Signal 15a1Signal for no action required 15a2Signal for action during regular maintenance 15a3Signal for action before regular maintenance

Claims

1. Device for maintenance planning - for a passenger elevator with an elevator car with a car door - with an accelerometer for detecting the vibration of the car door, - with a collection device which is designed - to create a vibration profile from the detection, - with a transmission device for transmitting the vibration profile to a server, and - with a server for analyzing the vibration profile, characterized in that- the collection device - is spatially connectable to the elevator car, in particular is connected thereto and - is designed to determine the deviation of the vibration profile from a reference profile and - depending on the deviation from at least one threshold value, to cause the transmission device to transmit the deviation and / or the vibration profile to the server, - and that the server - is provided spatially separated from the passenger elevator, in particular is spatially separated and - is designed to compare the deviation and / or the vibration profile with at least one threshold value or at least one value range and - depending on the comparison, to output a signal which indicates - whether no action is to be taken, or - whether an action is to be taken as part of the next regular maintenance or - whether an action is to be taken before the next regular maintenance.

2. Device according to any preceding claim characterized in that- the transmission device - is spatially connectable to the elevator car, in particular is connected and / or has a common housing with the collecting device, which housing is spatially connectable to the elevator car, in particular is connected and / or that - the transmission device is designed to - transmit the deviation and / or the vibration profile to the server wirelessly and / or - via an Internet protocol.

3. Device according to any preceding claim characterized in that - the server compares the vibration profile with at least one threshold value or at least one range of values by - the amplitude of the vibration exceeding a threshold value.

4. Device according to any preceding claim characterized in that- the server carries out the comparison of the vibration profile with at least one threshold value or at least one range of values by - the amplitude of the vibration periodically exceeding a threshold value.

5. Device according to any preceding claim characterized in that - the server carries out the comparison of the vibration profile with the at least one threshold value or at least one range of values by - detecting a specific frequency, in particular the natural frequency of the door.

6. Device according to any preceding claim characterized in that - the server carries out the comparison of the vibration profile with the at least one threshold value or at least one range of values by - performing a frequency analysis and / or a wavelet analysis.

7. Device according to any preceding claim characterized in that- the server carries out the comparison of the vibration profile with the at least one threshold value or at least one range of values by - performing a frequency analysis with pattern recognition.