Assembly with a device for maintenance planning for an elevator

Description

[0001] The invention relates to an assembly with a device for maintenance planning with a passenger elevator with an elevator car with a car door.

[0002] US 6 854 565 B2 discloses the preamble of claim 1.

[0003] The purpose of the invention is to provide a module for maintenance planning for an elevator.

[0004] This problem is solved by an assembly according to claim 1. Advantageous embodiments are specified in the further dependent claims.

[0005] The assembly according to the invention comprises a device for maintenance planning for a passenger elevator with an elevator car having a car door with an accelerometer for detecting the vibration of the car door, with a data collection device 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 data collection device is spatially connectable to the elevator car, in particular 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 separate 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 value range and, depending on the comparison, to output a signal indicating whether no action is required, whether an action should be taken as part of the next regular maintenance, or whether an action should be taken before the next regular maintenance.

[0006] The assembly can offer the advantage of increased elevator availability. The device can offer the advantage of reduced maintenance intervals. The device can offer the advantage of increased passenger safety in the elevator. The device can offer the advantage of requiring less computing power in the elevator car than in the server to operate the device.

[0007] The data collection device may include memory to store the measurement data and the vibration profile. The data collection device may also include a microprocessor to generate the vibration profile from the measurement data.

[0008] The measurement 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.

[0009] The minimum threshold value can be one, two, three, or more numerical values. The minimum threshold value can be a reference profile that, in particular, extends over essentially the same duration or length of the vibration profile.

[0010] A range of values ​​can be defined by a lower and an upper threshold.

[0011] 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 transmitted wirelessly and / or via an internet protocol.

[0012] According to the invention, the transmission device is spatially connected to the elevator car. Preferably, the transmission device and the collecting device share a common housing, which is spatially connected to the elevator car.

[0013] According to the invention, the transmission device is designed to transmit the deviation and / or the vibration profile wirelessly and / or via an Internet protocol to the server.

[0014] This can offer the advantage of allowing a remote service company to be informed. This can offer the advantage of allowing a service technician to be informed via the internet on their mobile device.

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

[0016] Preferably, the server performs the comparison of the vibration profile with the at least one threshold or at least one range of values ​​by periodically exceeding a threshold value with the amplitude of the vibration.

[0017] Preferably, the server performs 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.

[0018] Preferably, the server performs the comparison of the vibration profile with at least one threshold value or at least one value range by performing a frequency analysis and / or a wavelet analysis.

[0019] Preferably, the server performs the comparison of the vibration profile with at least one threshold value or at least one value range by carrying out a frequency analysis with pattern recognition.

[0020] Further features of the invention are shown in the drawings.

[0021] The advantages mentioned in each case can also materialize for combinations of features in which they are not explicitly mentioned.

[0022] Overview of the drawings: Exemplary embodiments of the invention are shown in the drawings and are explained in more detail below. Identical reference numerals in the individual figures denote corresponding elements. They show: Fig. 1 Flowchart of the device Detailed description of the drawings:

[0023] Fig. 1A flow diagram of device 10 is shown. The process starts at the accelerometer 11. This is spatially connected to the elevator car, i.e., mounted on it.

[0024] 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.

[0025] The data collection device 12 is mounted on the elevator car and, in a first step 12a, generates 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 and then, depending on the deviation from at least one threshold value, causes the transmission device 13 to transmit the deviation and / or the vibration profile to the server 14. The data collection device 12 and the transmission device 13 are spatially connected to the elevator car, i.e., mounted on it.

[0026] Server 14 is not physically connected to the elevator car or the elevator itself. It can be located in a different city than the elevator. Server 14 compares the vibration profile with at least one threshold value or at least one value range and then outputs a signal 15, depending on the comparison (14a1, 14a2, 14a3), indicating whether no action (15a1), an action as part of the next regular maintenance (15a2), or an action before the next regular maintenance (15a3) should be performed. Reference symbol list:

[0027] 10 Flowchart of the device 11 Accelerometer 12 Collecting device 12a Vibration profile generation 12b Deviation comparison 12c Reference signature 12d Threshold 13. Transmission device 14Server 14aComparison of whether no action is required 14bComparison of whether action is required during regular maintenance 14cComparison of whether action is required before regular maintenance 15Signal 15a1Signal: No action required 15a2Signal: Action required during regular maintenance 15a3Signal: Action required before regular maintenance

Claims

1. Assembly - having a maintenance planning apparatus for a passenger lift having a lift cabin with a cabin door and - having a passenger lift having a lift cabin with a cabin door - having an accelerometer (11) for detecting the vibration of the cabin door, - having a collection device (12) which is designed - to create a vibration profile from the detection, - having a transmission device (13) for transmitting the vibration profile to a server (14), and - having a server (14) for analysing the vibration profile, characterized in that - the collection device (12) - can be spatially connected, in particular is connected, to the lift cabin and - is designed to determine the deviation of the vibration profile from a reference profile and - to cause the transmission device (13) to transmit the deviation and / or the vibration profile to the server (14), depending on the deviation from at least one threshold value, - and in that the server (14) - is provided so as to be spatially separate, in particular is spatially separate, from the passenger lift and - is designed to 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, or - whether an action within the scope of the next regular maintenance, or - whether an action before the next regular maintenance should be carried out, wherein - the transmission device (13) - is spatially connected to the lift cabin, and in that - the transmission device (13) is designed to transmit - the deviation and / or the vibration profile wirelessly and / or - via an Internet protocol to the server (14).

2. Assembly according to a preceding claim, characterized in that - the transmission device (13) - has a common housing with the collection device (12), which housing is spatially connected to the lift cabin.

3. Assembly according to a preceding claim, characterized in that - the server (14)compares the vibration profile with the at least one threshold value or at least one range of values by virtue of that fact that - the amplitude of the vibration exceeds a threshold value.

4. Assembly according to a preceding claim, characterized in that - the server (14)compares the vibration profile with the at least one threshold value or at least one range of values by virtue of that fact that - the amplitude of the vibration periodically exceeds a threshold value.

5. Assembly according to a preceding claim, characterized in that - the server (14)compares the vibration profile with the at least one threshold value or at least one range of values by virtue of that fact that - a certain frequency, in particular the natural frequency, of the door is detected.

6. Assembly according to a preceding claim, characterized in that - the server (14)compares the vibration profile with the at least one threshold value or at least one range of values by virtue of that fact that - a frequency analysis and / or a wavelet analysis is carried out.

7. Assembly according to a preceding claim, characterized in that - the server (14)compares the vibration profile with the at least one threshold value or at least one range of values by virtue of that fact that - a frequency analysis with pattern recognition is carried out.