DE102019206780B3 - Method for operating power and / or control electronics - Google Patents

Abstract

Power and / or control electronics (2) for a component (1), with a central processing unit (3), a memory (4) and a receiving unit for receiving an external time signal, is characterized in that the receiving unit for receiving the time signal a terrestrial transmitter is formed. Furthermore, a system consisting of such power and / or control electronics (2) and a component (1) and a method for operating power and / or control electronics (2) are specified.

Description

The invention relates to a method for operating power and / or control electronics.

Electric motors and external power or control electronics, such as those used in particular for fans, are usually designed to record the operating hours with a clock integrated on the electronics. However, this clock does not start the time counting until after it has been commissioned, since without a built-in battery there is no power or voltage supply until it is connected to the end customer. This means that only the operating hours are recorded, but not the absolute time of commissioning.

It can take a relatively long time, for example months or even years, from the final inspection to delivery to the customer, possibly the end customer, and the actual first commissioning at the end customer, especially if a product is still to be used, for example the replacement of a Fan is in a warehouse. This time cannot be traced, especially when it comes to service. The possibly long transport and storage times also affect the service life, for example of the rolling bearing grease or the electronic components.

For maintenance cycles or predicting when certain parts will fail, it is also advantageous to know the exact time of commissioning and the conditions at the time of the failure.

It is also known from practice to use a GPS signal as the internal clock of a fan. The document is merely an example of this CN 202 946 425 U referenced. However, a corresponding construction has the disadvantage that a GPS signal can often not be received inside a building, so that an external antenna is necessary. Overall, corresponding devices are therefore susceptible to failure or can only be operated with greater constructive effort, namely by installing a corresponding external antenna.

Furthermore, in the US 7 185 825 B1 a programmable thermostat with a power / control electronics described, which has a central processing unit, a memory and a clock. The clock includes a WWVB receiver for receiving a time signal with a frequency of 60 kHz.

Furthermore shows the US 2008/0291587 A1 an electronic device that has a first component, the failure of which poses a risk to the security of the electronic device. In addition, the electronic device has a further component, the failure of which has no negative impact on the safety of the electronic device, but the failure of this component leads to the electronic device losing an essential function

The present invention is based on the object of specifying an improved method for operating power and / or control electronics.

The disclosure also relates to power and / or control electronics for a component, with a central processing unit, a memory and a receiving unit for receiving an external time signal, the receiving unit being designed to receive the time signal from a terrestrial transmitter.

In a particularly advantageous manner, the receiving unit can be matched to a time signal from a long-wave transmitter, since these signals can also be received inside buildings. If a component that is actively connected to the power and / or control electronics, for example an (electric) motor or fan, is located inside a building, the long waves can penetrate the building relatively unhindered and the signal can also be received without an external antenna, which is the case with GPS Signals is not the case. It is thus possible with structurally simple means that absolute time data can be recorded or that an internal clock of the power and / or control electronics, which may be arranged, can be set.

It is also conceivable that the receiving unit for different receiving regions (for example Central Europe, Russia, USA, etc.) is matched to the respective frequencies. This can be done, for example, by equipping the electronics with regionally specific equipment or by corresponding parameterization of the receiving unit.

It should be noted that the component can be, for example, a fan, an electric motor, electronics, for example electronics for elevator and / or special motors, a control device and / or a frequency converter.

The term “terrestrial transmitter” is to be understood in the present disclosure as a terrestrial (radio) transmitter or time signal transmitter.

In the present disclosure, the term “long-wave transmitter” is to be understood as, in particular, a terrestrial transmission system for a time signal that emits electromagnetic waves Sends frequencies in the long wave range between 20 kHz and 400 kHz, in particular between 25 kHz to 300 kHz.

In the present disclosure, the term “time signal” is to be understood as a signal which indicates the currently valid time in machine-readable or digital form.

In the present disclosure, the term “time data” relates to a time and / or a date that is available in digital or machine-readable form.

In the present disclosure, the term “time data” is to be understood as the current time and / or the current date of a specific point in time determined by the power and / or control electronics using an internal clock and / or using an external time signal, this time and / or this datum is in digital form so that it can be written into a digital memory.

The receiving unit can advantageously have an antenna for receiving the time signal. The antenna could be part of the power and / or control electronics, so that an extremely compact design is implemented, with an external antenna, i.e. an antenna located outside the building can generally be dispensed with.

It is also conceivable that the power and / or control electronics have an internal clock that can be set using the external time signal received. The internal clock could be implemented by the central processing unit or as a separate component. Exact absolute time data can thus be recorded and possibly stored in the memory. Alternatively or additionally, an internal sensor system could be provided. This could, for example, record load states of the fan, a standstill of the fan, the ambient temperature, a component temperature, a change in the operating parameters, a change in the operating conditions, etc. These sensor data could be linked as pairs of values with absolute time data and stored in the memory so that events that occur can be compared with absolute time data. It should be noted that the sensor system can be designed as part of the power and / or control electronics and / or as part of the component, for example a motor or fan. It would be conceivable for a temperature sensor in the electric motor to monitor the winding temperature of the motor and to transmit the determined sensor data to the power and / or control electronics, for example to a data acquisition device of the same.

A data acquisition unit can be arranged in a further advantageous manner. The data acquisition unit can in particular serve for communication with an internal sensor system, namely could receive the sensor data and forward them to the central processing unit for further processing.

According to a further advantageous embodiment, it is conceivable that an interface for remote data transmission is arranged. Such an interface has the advantage that data can, for example, be transmitted to and / or received from a company database.

Overall, the power and / or control electronics or a component equipped therewith, in particular a fan, has the advantage that, for example, the internal memory can be read out when servicing. By reading out the internal memory, it could be understood when the device actually went into operation, how much time passed between the final test and commissioning and what the corresponding operating conditions were with the corresponding runtimes. Anomalies that were detected by sensors could also be chronologically classified, for example an increase in vibrations in the event of increasing or sudden unbalance, cyclical vibrations that occur, for example, when an external unit is switched on, which transmits vibrations to the device. In addition to information about the cause of the failure, information could also be made available in order to better plan future maintenance or cleaning intervals. Maintenance or cleaning times could also be tracked in terms of time if the power supply was interrupted for this purpose.

The underlying disclosure also relates to a system consisting of a component and power and / or control electronics.

The component can advantageously be a fan, an electric motor, electronics, for example electronics for elevator and / or special motors, a control device and / or a frequency converter.

• - Empfang eines externen Zeitzeichensignals eines terrestrischen Senders, insbesondere eines Langwellensenders,
• - Stellen einer Uhr der Leistungs- und/oder Steuerelektronik auf Grundlage des empfangenen Zeitzeichensignals.

In concrete terms, the underlying problem is solved by the features of claim 1. According to this, a method for operating power and / or control electronics has the following method steps:

• - Reception of an external time signal from a terrestrial transmitter, in particular a long-wave transmitter,
• - Setting a clock of the power and / or control electronics on the basis of the received time signal.

According to the invention, an external time signal from a terrestrial transmitter, in particular a long-wave transmitter, is used to set a clock of the power and / or control electronics. The clock could be implemented as a separate component or by a central processing unit of the power and / or control electronics. The signals from a terrestrial transmitter, in particular a long-wave transmitter, can also be received inside buildings, so that reliable absolute time data can be made available in a simple manner. If the device is disconnected from the power supply after commissioning, no unclear data will arise, as when reconnecting a new time signal for setting the clock can be recorded and, if necessary, saved. In this way, the times when the power supply is interrupted can also be documented.

A memory could advantageously be read out to determine whether a final test mode and / or an initial start-up mode of the power and / or control electronics has already taken place. This has the advantage that a final test mode or an initial start-up mode can be started if this has not yet been carried out or if there are no corresponding data in the memory. For example, a final test algorithm or final test mode could be started during the final test in the factory, the receiving unit receiving the current time signal and an absolute time date and time could be stored in the memory of the electronics as the final test date. At the same time, the function of the receiving unit could be checked during the final test.

In a manner according to the invention, sensor data will be recorded during a final test mode and linked to the absolute time data provided by the clock at this point in time and stored in the memory. This means that it is always clear that the device was also functional at the time the final test mode was carried out. As an alternative or in addition, the absolute time data provided by the clock at this point in time are stored in the memory in a further manner according to the invention for carrying out an initial start-up mode. With a corresponding embodiment of the method, it is always possible to trace when the fan was first put into operation. Alternatively or additionally, it is conceivable that when the device with the power and / or control electronics is connected to a voltage supply for the first time at the end customer, an initial commissioning algorithm or an initial commissioning mode is started.

In a further advantageous manner, sensor data could be recorded during the initial start-up mode and linked with the time data provided by the clock at this point in time and stored in the memory. This has the advantage that it is possible to trace at what point in time which sensor data was recorded during the initial start-up.

In a particularly advantageous manner, the absolute time data of the initial start-up mode and the absolute time data of the final test mode could be compared with one another and the comparison value generated by this comparison could be stored in the memory. It is also conceivable that a warning message is output when the comparison value exceeds a predetermined limit value. In other words, this means that if a limit value for the maximum period between final inspection and initial start-up is exceeded, a warning message, in particular an acoustic and / or optical warning, could be output to the end customer. This may be necessary, for example, if the permitted storage time of the rolling bearing grease used has already been exceeded. The limit value can be stored via the production date of the bearings during the final inspection. The same applies to critical electronic components, e.g. Electrolytic capacitors.

According to an advantageous embodiment of the method according to the invention, a nominal operating mode could be started when both a final test mode and an initial start-up mode have been completed. In addition, it is conceivable that the absolute time data provided by the clock at the time of the start of nominal operation are compared with the most current absolute time data stored in the memory in order to generate a comparison value and an initial start-up mode could be started if the comparison value exceeds a specified value Limit value exceeded. In a further advantageous manner, the absolute time data available from the clock at the time of the start of nominal operation could be compared with the absolute time data of a final test stored in the memory in order to generate a comparison value and an, in particular acoustic and / or optical, warning message could be generated output when the comparison value exceeds a specified limit value. In other words, a period could be defined as the maximum period for An interruption in the power supply is permitted, for example if the device is not commissioned directly at the end customer, but the device is installed in a system by a system manufacturer, tested and only then delivered to the end customer. If this defined period is exceeded, a restart of an initial commissioning algorithm or initial commissioning mode could be useful or necessary. In the event of no or only brief interruption of the voltage supply, a transition could be made directly to the nominal operating algorithm or nominal operating mode.

It is also possible for sensor data to be recorded during nominal operation and to be linked to the time data available from the clock at this point in time, and for these nominal operation data to be stored in the memory. In addition, a load profile could be created from the nominal operating data and the load profile data generated thereby could be stored in the memory. As a result, it is conceivable that if the device is connected to the power supply after commissioning, a trigger signal for receiving a time signal could be triggered at certain time intervals or when certain states occur, which are defined by recorded sensor data. If the power supply has not been interrupted, this would not be absolutely necessary, since the internal clock has already been set by a time signal, for example during the initial start-up mode. Furthermore, recorded sensor data - in particular load conditions, standstill, temperatures, changes in the operating parameters or the operating conditions - could be linked as value pairs with absolute time data and stored in the memory. Occurring events could be compared with absolute time data. From this, load profiles could be created that show the dependencies on the respective time of day or night, working days, Sundays and public holidays, seasonal operating conditions, etc. Even without an existing remote data transmission, the end customer could be shown a specific date as a maintenance time - for example for a bearing replacement - or specific time periods for cleaning intervals - in particular due to contamination or a detected imbalance.

According to a further advantageous embodiment, the receiving unit or a further receiving unit could be designed to receive position signals, for example from a GPS system. Location data relating to the position of the power and / or control electronics could be recorded on the basis of the position signals. In the case of remote data transmission of the location data or in the case of service when reading out the memory, further information could be derived from this. For example, the location of the device could be determined, the environmental conditions of the location of the device (climatic conditions, industrial atmosphere, etc.) could be determined and / or the sea level of the location could be determined so that the air pressure conditions could be taken into account for the operation of the device. A time signal contained in the position signals or a separate GPS time signal could also be recorded and evaluated in addition to the long-wave time signal.

• 1 ein Ablaufdiagramm des Betriebs einer Leistungs- und/oder Steuerelektronik entsprechend eines Ausführungsbeispiels des erfindungsgemäßen Verfahrens,
• 2 ein Ablaufdiagramm des Nennbetriebs entsprechend eines Ausführungsbeispiels des erfindungsgemäßen Verfahrens, und
• 3 in einer schematischen Darstellung ein Ausführungsbeispiel eines Bauteils umfassend eine Leistungs- und/oder Steuerelektronik.

There are now various possibilities for designing and developing the teaching of the present invention in an advantageous manner. For this purpose, on the one hand, reference is made to the claims subordinate to claim 1 and, on the other hand, to the following explanation of preferred exemplary embodiments of the invention using the drawing. In connection with the explanation of the preferred exemplary embodiments of the invention with reference to the drawing, generally preferred embodiments and developments of the teaching are also explained. Show in the drawing

• 1 a flow chart of the operation of power and / or control electronics according to an embodiment of the method according to the invention,
• 2 a flow chart of the nominal operation according to an embodiment of the method according to the invention, and
• 3 In a schematic representation, an embodiment of a component comprising power and / or control electronics.

1 shows a flow chart of the operation of a power and / or control electronics according to an embodiment of the method according to the invention. The power and / or control electronics can be operatively connected, for example, to a fan or another component in accordance with the disclosure provided here.

In a step S1 it is checked whether there is a voltage supply for the power and / or control electronics. In a step S2 it is checked whether a final test mode has been completed. For this purpose, according to A1, the memory is read out accordingly. If the final test mode has been completed, a step S3 checks whether an initial start-up mode has been completed. For this purpose, the memory is read out according to A2. If the initial start-up mode has been completed, a nominal operating mode is initialized in step S4.

If the check in step S2 shows that no final check mode has been carried out, this is started according to step S5. In step S6, a trigger to receive a Time signal set. In step S7 it is checked whether the time signal has been received. If the time signal has been received, the setting of the internal clock is initialized in step S8. If no time signal has been received, step S6 is carried out again.

Furthermore, after the start of the final test mode according to S5, the acquisition of sensor data SD is initialized in step S9. The sensor data SD and the absolute time data TD generated by the internal clock are linked to one another in step S10, so that the data pairs SD / TD resulting therefrom are stored in the internal memory IS of the power and / or control electronics. Out 1 it also emerges that the absolute time data TD are also stored in the internal memory IS.

If the check in step S3 shows that no initial start-up mode has been carried out, this is started in accordance with step S11. A trigger for receiving a time signal is set in step S12. In step S13 it is then checked whether the time signal has been received. If this is not the case, step S12 is carried out again. If the time signal has been received, the setting of the internal clock of the power and / or control electronics is then initialized in step S14.

Furthermore, after the start of the initial start-up mode according to S11, the acquisition of sensor data SD 'is initialized in step S15. The sensor data SD 'and the absolute time data TD' generated by the internal clock are linked to one another in step S16, so that the resulting data pairs SD '/ TD' are stored in the internal memory IS of the power and / or control electronics.

Furthermore, the absolute time data TD 'are compared in step S17 with the time data TD from the initial start-up, for which purpose a memory query A3 is carried out. If it is determined in step S18 that the period between the first commissioning and the date of the final test is greater than a predefined limit value, a warning message is output according to S19. If the limit value has not been exceeded, the comparison value VW, i.e. the time between final inspection and initial start-up is written to memory IS.

2 shows a flow chart of the nominal operation according to an embodiment of the method according to the invention. The nominal operating mode is started in step S4, whereupon a trigger for receiving a time signal is set in step S20. If it is recognized in step S21 that the time signal has been received, the setting of the internal clock is initialized according to S22. If no time signal has been received, step S20 is carried out again.

Furthermore, in step S23 sensor data SD "are recorded, which are linked to the absolute time data TD" in step S24. The data pairs SD "/ TD" generated in this way are stored directly in the internal memory IS. Furthermore, a load profile can be created on the basis of the linked data SD "/ TD" in step S25, with the load profile data LD generated thereby being able to be stored in the internal memory IS.

Furthermore, the absolute time data TD "can be compared in step S26 with the last stored time data, for which purpose a memory query A4 is carried out. If it is determined in step S27 that the period between the last stored absolute time data and the current absolute time data TD" is greater is than a predetermined limit value, the initial start-up mode is started according to S11. If the limit value is not exceeded, the absolute time data TD "are compared with the time data TD of the final test mode in a step S28, for which purpose a memory query A5 is carried out. If it is determined in step S29 that the period between the final test mode and the current absolute Time data is greater than a predefined limit value, a warning message is output according to S30.

If the limit value has not been exceeded, the absolute service life LT, for example of a fan bearing and a maintenance time WZ, could be determined in step S31 using the current absolute time data TD " to provide. The maintenance time WZ could be output to the user in step S32. Furthermore, the absolute time data TD ″ can be stored in the internal memory IS together with the absolute service life LT and the maintenance time WZ.

3 shows in a schematic representation an embodiment of a component 1 , for example a fan, with power and / or control electronics 2 .

Out 3 it is clear that the power and / or control electronics 2 a central processing unit 3 , ie a "central processing unit (CPU)", which has an internal memory 4th , a receiving unit 5 and a data acquisition unit 6th connected is. There is also an internal sensor system 7th arranged with the data acquisition unit 6th communicates. Thus, the sensors 7th determined measured values or sensor data from the data acquisition unit 6th recorded and sent to the central processing unit 3 transmitted. From the central processing unit 3 the measured values or sensor data can be saved in the internal memory 4th to be written. As already stated above, the internal sensors 7th not necessarily as part of the power and / or control electronics 2 be formed, but can alternatively or additionally also as an element of the component 1 be implemented, for example as a temperature sensor that monitors the winding temperature of the motor.

The internal memory 4th is with an interface 8th connected for remote data transmission, so that data with an external database 9 can be exchanged.

The receiving unit 5 is designed to receive the external time signal from a terrestrial transmitter, preferably a long-wave transmitter. Since these, in particular long-wave, signals can penetrate a building relatively unhindered, there is no need for an external antenna. As in 3 shown, the receiving unit 5 an antenna 10 which is designed to receive the, preferably long-wave, time signal. Using the time signal, an internal clock 11 are provided, which in the embodiment shown here by the central processing unit 3 is realized.

Out 3 it can be seen that the component 1 next to the power and / or control electronics 2 also an electric motor 12 has that with the power and / or control electronics 2 is effectively connected.

With regard to further advantageous embodiments of the method according to the invention, reference is made to the general part of the description and to the appended claims in order to avoid repetition.

Finally, it should be expressly pointed out that the above-described exemplary embodiments of the method according to the invention only serve to explain the teaching claimed, but do not restrict them to the exemplary embodiments.

List of reference symbols

1

Component

2

Power and / or control electronics

3

central processing unit

4th

Storage

5

Receiving unit

6th

Data acquisition unit

7th

Sensors

8th

interface

9

external database

10

antenna

11

Clock

12

Electric motor

S1 - S31

step

A1 - A6

query

TD, TD ', TD "

absolute time data

SD, SD ', SD "

Sensor data

VW

Comparison value

WZ

Maintenance time

IS

Internal memory

LT

lifespan

LD

Load profile data

Claims (16)

Method for operating power and / or control electronics (2) for a component (1), with a central processing unit (3), a memory (4) and a receiving unit (5) for receiving an external time signal, the receiving unit (5 ) is designed to receive the time signal from a terrestrial transmitter, with the following process steps: - Reception of the external time signal from the terrestrial transmitter, in particular a long-wave transmitter, - Setting a clock (11) of the power and / or control electronics (2) on the basis of the received time signal, - sensor data (SD) being recorded during a final test mode and being linked to the absolute time data (TD) provided by the clock (11) at this point in time and being stored in a memory (4) and / or an internal memory (IS), and or wherein the absolute time data (TD ') provided by the clock (11) at this point in time are stored in the memory (4) to carry out an initial start-up mode. Procedure according to Claim 1 , characterized in that a memory (4) is read out to determine whether a final test mode and / or an initial start-up mode of the power and / or control electronics (2) has already taken place. Procedure according to Claim 1 or 2 , characterized in that during the initial start-up mode sensor data (SD ') are recorded and linked to the time data (TD') provided by the clock (11) at this point in time and are stored in the memory (4). Method according to one of the Claims 1 to 3 , characterized in that the absolute time data (TD ") of the initial start-up mode and the absolute time data (TD) of the final test mode are compared with one another and that the comparison value (VW) generated by this comparison is stored in the memory (4). Procedure according to Claim 4 , characterized in that a warning message is output when the comparison value (VW) exceeds a predetermined limit value. Method according to one of the Claims 1 to 5 , characterized in that a nominal operating mode is started when both a final test mode and an initial start-up mode have been completed. Procedure according to Claim 6 , characterized in that the absolute time data (TD ") provided by the clock (11) at the time of the start of nominal operation are compared with the most recent absolute time data (TD") stored in the memory (4) in order to obtain a comparison value (VW ) and that an initial commissioning mode is started when the comparison value (VW) exceeds a specified limit value. Procedure according to Claim 6 or 7th , characterized in that the absolute time data (TD ") available from the clock (11) at the time of the start of nominal operation are compared with the absolute time data (TD) of a final test stored in the memory (4) in order to obtain a comparison value (VW ) and that a warning message is output if the comparison value (VW) exceeds a specified limit value. Method according to one of the Claims 6 to 8th , characterized in that during nominal operation sensor data (SD ") are recorded and linked to the time data (TD") available from the clock (11) at this point in time, and these nominal operation data are stored in the memory. Procedure according to Claim 9 , characterized in that a load profile is created from the nominal operating data and the load profile data (LD) generated thereby are stored in the memory (4) and / or the internal memory (IS). Method according to one of the Claims 1 to 10 , characterized in that the receiving unit (5) is designed to receive the time signal from a long-wave transmitter. Method according to one of the Claims 1 to 11 , characterized in that the receiving unit (5) has an antenna (10) for receiving the time signal. Method according to one of the Claims 1 to 12 , characterized in that an internal sensor system (7) and / or a clock (11) is formed. Method according to one of the Claims 1 to 13th , characterized in that a data acquisition unit (6) is arranged. Method according to one of the Claims 1 to 14th , characterized in that an interface (8) is arranged for remote data transmission. Method according to one of the Claims 1 to 15th , characterized in that the component (1) is a fan, an electric motor, electronics, a control device or a frequency converter.

Images