An operation data recording system for UPS device

Abstract

The present invention relates to an operation data recording system for a UPS device, comprising: a data acquisition device, the data acquisition device is connected to the UPS device in communication to obtain the collected UPS device signals from the UPS device; a data analysis processing and recording device, used to analyze, process and record the UPS device signals based on system settings; the data analysis processing and recording device further comprises: a recording mode unit, which generates a mode start signal based on the system settings; a data recording unit, which records the first sampling signal of the UPS device at a first sampling frequency based on the mode start signal, and records the second sampling signal of the UPS device at a second sampling frequency. The operation data recording system for a UPS device implementing the present invention can effectively record the fault data or alarm data of the UPS device, thereby effectively assisting the effective diagnosis of the fault or alarm of the UPS device.

Description

Technical Field

[0001] The present invention relates to the field of uninterrupted power supply (UPS) fault or alarm monitoring and diagnosis, and more specifically, to an operation data recording system for a UPS device. Background Art

[0002] UPS is a frequency-stabilized and voltage-stabilized power conversion device that provides users with pure, uninterrupted power supply. UPS has evolved from an emergency power supply to an intelligent component in user equipment. Its capacity ranges from a few hundred VA to several million VA, and it has background monitoring, battery management and other functions. Therefore, it is the core part of the power supply equipment. The role of UPS is very critical, but when a UPS fails or an abnormal alarm occurs, the data that can be used to analyze the failure or abnormal alarm is very limited. At present, the data that can be used for analysis when a UPS fails or an abnormal alarm occurs mainly includes: UPS fault point data, UPS alarm records, and analog data uploaded by UPS to monitoring. However, it is difficult to accurately analyze the cause of UPS failure or alarm based on the existing data. Summary of the invention

[0003] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, an operation data recording system for a UPS device is provided, which can effectively record the fault data or alarm data of the UPS device, thereby effectively assisting in the effective diagnosis of the fault or alarm of the UPS device.

[0004] According to one aspect of the present invention, there is provided an operation data recording system for a UPS device, comprising:

[0005] a data acquisition device, the data acquisition device being communicatively connected to the UPS device to acquire a collected UPS device signal from the UPS device;

[0006] A data analysis processing and recording device, for analyzing, processing and recording the UPS device signal based on system settings;

[0007] The data analysis, processing and recording device further comprises:

[0008] a recording mode unit, generating a mode start signal based on the system setting;

[0009] The data recording unit records a first sampling signal of the UPS device at a first sampling frequency based on the mode start signal, and records a second sampling signal of the UPS device at a second sampling frequency.

[0010] In the operation data recording system of the UPS device described in the present invention, the data analysis, processing and recording device further includes an alarm signal generating unit for generating an alarm signal based on the UPS device signal; the recording mode unit generates an alarm mode start signal and a recording mode start signal based on the system setting.

[0011] In the operation data recording system of the UPS device described in the present invention, the data recording unit uses a high sampling frequency to record the duration of the alarm signal, the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device in the first time before the alarm signal and the second time after the alarm signal based on the alarm signal and the alarm mode start signal, and uses a low sampling frequency to record the duration of the alarm signal, the effective value data of the AC signal and the DC signal data of the UPS device in the third time before the alarm signal and the fourth time after the alarm signal.

[0012] In the operation data recording system of the UPS device of the present invention, the data analysis processing and recording device further comprises:

[0013] A data processing unit, used for performing analog-to-digital conversion, filtering and calculation processing on the UPS device signal;

[0014] A data setting unit, configured to set the time interval between the high sampling frequency and the low sampling frequency based on the characteristics of the detected signal; and the duration of the alarm signal, the first time before the alarm signal, the second time after the alarm signal, the third time before the alarm signal, and the fourth time after the alarm signal;

[0015] A timestamp unit is used to add a timestamp to the processed UPS device signal.

[0016] In the operation data recording system of the UPS device described in the present invention, the alarm signal generating unit is used to generate the alarm signal based on the fault signal or alarm signal of the UPS device obtained from the UPS device, or to generate the alarm signal based on the input or bypass voltage signal collected by the UPS device and the national standard or set threshold, or to generate the alarm signal based on the output voltage, current and / or frequency of the UPS device and the set threshold, or to generate the alarm signal based on the current and / or voltage of the battery of the UPS device and the set threshold.

[0017] In the operation data recording system of the UPS device described in the present invention, the data analysis and presentation device is used to receive the first sampling signal, the second sampling signal and / or the alarm signal or fault signal from the data analysis processing and recording device, and simultaneously present the first sampling signal, the second sampling signal and / or the alarm signal or fault signal based on the same time axis and perform analysis.

[0018] In the operation data recording system of the UPS device described in the present invention, the data recording unit is further used to record the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device at a high sampling frequency based on the recording mode start signal, and to record the effective value data of the AC signal and the DC signal data of the UPS device at a low sampling frequency.

[0019] In the operation data recording system of the UPS device described in the present invention, the recording mode unit further generates a normal startup mode signal based on the system setting; the data recording unit uses a second low sampling frequency to record the AC signal effective value data and DC signal data of the UPS device based on the normal startup mode signal.

[0020] In the operation data recording system of the UPS device of the present invention, the data analysis processing and recording device further comprises:

[0021] a data compression unit, configured to completely store the initial sampling point data of the first sampling signal and / or the second sampling signal at the first sampling moment; sequentially calculate the sampling point deviation between the sampling data of each sampling moment of the first sampling signal and / or the second sampling signal and the sampling point data of the previous sampling moment; each of the deviations and each of the initial sampling point data constitute the compressed data of the first sampling signal and / or the second sampling signal; and

[0022] The operation data recording system of the UPS device further includes a data storage device for storing compressed data of the first sampling signal and / or the second sampling signal.

[0023] The operation data recording system of the UPS device of the present invention further comprises:

[0024] A GPS timing device, used for receiving a GPS timing signal, and sending the GPS timing signal to the UPS device and / or the data analysis, processing and recording device to calibrate the UPS device and / or the data analysis, processing and recording device;

[0025] A display device, used to display the working status of the data analysis, processing and recording device;

[0026] A power supply and backup device, used to provide power supply and backup power for the data analysis, processing and recording device;

[0027] A communication device that communicates with the data analysis and presentation device, wherein the communication device controls the data analysis, processing and recording device to operate in an online working mode and an offline working mode.

[0028] The operation data recording system of the UPS device of the present invention can effectively record the fault data or alarm data of the UPS device, thereby effectively assisting the effective diagnosis of the fault or alarm of the UPS device. The operation data recording system of the UPS device of the present invention can work in the alarm start mode, so as to use a low sampling frequency to record the duration of the alarm signal, the AC signal effective value data and DC signal data of the UPS device in the third time before the alarm signal and the fourth time after the alarm signal, thereby further saving space and more targeted recording and analysis of fault data or alarm data. Further, the alarm start mode can be flexibly started in various ways. The operation data recording system of the UPS device of the present invention can also work in the recording mode, so as to continuously record the waveform data of the selected signal, which is convenient for subsequent data analysis. Further, through data compression, data storage space can be further saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0030] Figure 1 is a principle block diagram of a first preferred embodiment of an operation data recording system for a UPS device of the present invention;

[0031] Figure 2 is a principle block diagram of a second preferred embodiment of an operation data recording system for a UPS device of the present invention;

[0032] Figure 3 is based on Figure 2 The schematic diagram of recording waveforms in the alarm start mode of the operation data recording system of the UPS device shown;

[0033] Figure 4 is based on Figure 2 A schematic diagram of a compression algorithm used by a data compression module recorded by an operation data recording system of a UPS device shown;

[0034] Figure 5 is based on Figure 2 A schematic diagram of recorded waveforms in a recording mode of an operation data recording system of a UPS device shown;

[0035] Figure 6 is based on Figure 2A schematic diagram showing the presentation of recorded data of an operation data recording system of a UPS device shown;

[0036] Figure 7 is a principle block diagram of a third preferred embodiment of an operation data recording system for a UPS device of the present invention;

[0037] Figure 8 is based on Figure 7 The diagram shows a recording waveform diagram of the alarm start-up mode of the operation data recording system of the UPS device. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] Figure 1 FIG. 1 is a schematic block diagram of a first preferred embodiment of an operation data recording system for a UPS device of the present invention. Figure 1 As shown, the operation data recording system of the UPS device of the present invention comprises a data acquisition device 100 and a data analysis, processing and recording device 200. The data acquisition device 100 is connected in communication with the UPS device to obtain the collected UPS device signal from the UPS device. The data analysis, processing and recording device is connected in communication with the data acquisition device 100 to analyze, process and record the UPS device signal based on system settings.

[0040] In a preferred embodiment of the present invention, the data acquisition device 100 may include a plurality of sensors installed on the UPS device to collect signals from the UPS device and a sampling unit for communicating with the plurality of sensors. The plurality of sensors include electrical signal sensors such as current transformers, Hall sensors, and voltage transmitters, as well as other sensors installed on the UPS device that can detect various physical signals and convert them into electrical signals, such as temperature detection sensors, vibration detection sensors, pressure sensors, etc. These sensors can be installed at the input, output, bypass, battery, and any other position of the UPS device, or they can be existing sensors on the UPS device itself, which convert the corresponding physical signals into electrical signals and send them to the sampling unit. The sampling unit conditions and filters the output signals of these sensors and converts them into electrical signals that can be analyzed and processed by the data analysis, processing, and recording device 200.

[0041] In a preferred embodiment of the present invention, the data analysis processing and recording device 200 further comprises a recording mode unit 210 and a data recording unit 220. The recording mode unit 210 generates a mode start signal based on system settings. The data recording unit 220 records a first sampling signal of the UPS device at a first sampling frequency based on the mode start signal, and records a second sampling signal of the UPS device at a second sampling frequency.

[0042] In a preferred embodiment of the present invention, the system setting of the operation data recording system of the UPS device is defined as a recording mode, and the recording mode unit 210 will generate a recording mode start signal based on the system setting of the recording mode. In the recording mode, regardless of whether the UPS device has an alarm, the data recording unit 220 continuously uses a high sampling frequency to record the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device, and uses a low sampling frequency to record the effective value data of the AC signal and the DC signal data of the UPS device.

[0043] In another preferred embodiment of the present invention, the system setting of the operation data recording system of the UPS device is defined as an alarm mode. At this time, the data analysis, processing and recording device 200 further includes an alarm signal generating unit for generating an alarm signal based on the UPS device signal. At this time, the recording mode unit 210 generates an alarm mode start signal and a recording mode start signal based on the system setting. Based on the alarm signal and the alarm mode start signal, the data recording unit 220 uses a high sampling frequency to record the duration of the alarm signal, the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device in the first time before the alarm signal and the second time after the alarm signal, and uses a low sampling frequency to record the duration of the alarm signal, the effective value data of the AC signal and the DC signal data of the UPS device in the third time before the alarm signal and the fourth time after the alarm signal.

[0044] In a preferred embodiment of the present invention, the alarm signal generating unit may be used to generate the alarm signal based on a fault signal or an alarm signal of the UPS device obtained from the UPS device. In another preferred embodiment of the present invention, the alarm signal generating unit may generate the alarm signal based on an input or bypass voltage signal collected by the UPS device and a national standard or a set threshold. In yet another preferred embodiment of the present invention, the alarm signal generating unit may be used to generate the alarm signal based on an output voltage, current and / or frequency of the UPS device and a set threshold. In a further preferred embodiment of the present invention, the alarm signal generating unit may be used to generate the alarm signal based on a current and / or voltage of a battery of the UPS device and a set threshold.

[0045] In a further preferred embodiment of the present invention, the data analysis, processing and recording device 200 of the present invention can switch between the alarm activation mode and the recording mode, that is, it starts to work in the alarm activation mode, and switches to the recording mode when a specific situation occurs, such as multiple alarms or the generation of a specific alarm signal.

[0046] The operation data recording system of the UPS device of the present invention can work in the alarm start mode, so as to use a low sampling frequency to record the duration of the alarm signal, the AC signal effective value data and DC signal data of the UPS device in the third time before the alarm signal and the fourth time after the alarm signal, thereby further saving space and more targeted recording and analysis of fault data or alarm data. Furthermore, the alarm start mode can be flexibly started in various ways. The operation data recording system of the UPS device of the present invention can also work in the recording mode, so as to continuously record the waveform data of the selected signal, which is convenient for subsequent data analysis. Furthermore, through data compression, data storage space can be further saved.

[0047] Figure 2 FIG. 1 is a schematic block diagram of a first preferred embodiment of an operation data recording system for a UPS device of the present invention. Figure 2As shown, in a preferred embodiment of the present invention, the operation data recording system of the UPS device includes a data acquisition device 100, a data analysis processing and recording device 200, and a data analysis presentation device 300. In this embodiment, the data acquisition device 100 may include a plurality of sensors 110 disposed on the UPS device 900 to collect data on the UPS device 900 and a sampling unit 120 for communicating with the plurality of sensors 110. The data analysis processing and recording device 200 is used to analyze, process and record the UPS device signal based on system settings. The data analysis presentation device 300 is used to receive the first sampling signal and the second sampling signal from the data analysis processing and recording device, and analyze and present the first sampling signal and the second sampling signal.

[0048] As mentioned above, in a preferred embodiment of the present invention, the multiple sensors 110 may include electrical signal sensors such as current transformers, Hall sensors, and voltage transmitters, as well as other sensors installed on the UPS device 900 that can detect various physical signals and convert them into electrical signals, such as temperature detection sensors, vibration detection sensors, pressure sensors, etc. These sensors can be installed at the input, output, bypass, battery, and any other location of the UPS device, convert the corresponding physical signals into electrical signals, and then send them to the sampling unit 120. The sampling unit 120 conditions and filters the output signals of these sensors and converts them into electrical signals that can be analyzed and processed by the data analysis and recording device 200.

[0049] The HMI monitoring 910 on the UPS device 900 can establish communication with the data analysis, processing and recording device 200 through the first communication device 810. The data analysis, processing and recording device 200 can obtain real-time fault or alarm information of the UPS device 900, obtain analog data information inside the UPS device 900, configure the UPS device 900, and calibrate the time of the UPS device 900 through the first communication device 810. The first communication device 810 can include common communication interfaces such as RS232, RS485, CAN, and RJ45, and supports communication protocols such as Modbus, CAN, and SNMP.

[0050] The power supply and backup device 600 is used to provide power supply and backup power for the data analysis, processing and recording device 200, so as to ensure that the data analysis, processing and recording device 200 can work normally. When the UPS device 900 abnormally shuts down, the data analysis, processing and recording device 200 can work normally, and can still record the data before and after the UPS device 900 shuts down, providing a basis for subsequent analysis of the cause of the shutdown. The input power supply of the power supply and backup device 600 can come from the inside, outside or a combination of the inside and outside of the UPS device 900, wherein the inside can be powered by the input, bypass, output or battery of the UPS device 900 (such as Figure 2 As shown, power is taken from the power supply 920 of the UPS device 900), preferably from the output of the UPS device 900. When the UPS device 900 takes power from the outside, it can take power from an independent power supply outside the UPS device 900. When the power is taken from both the inside and the outside, it can take power from multiple places, such as from the input, battery, bypass, output or external power supply inside the UPS device 900 at the same time.

[0051] The backup power function of the backup power supply device 600 is realized by a charging and discharging module and a battery, ensuring normal operation when there is no power supply. The charging and discharging module realizes the charging and discharging management of the battery. The battery can be a rechargeable battery such as a lead-acid battery, a nickel-metal hydride battery, a lithium battery, etc., preferably a lithium battery.

[0052] The GPS timing device 400 is used to receive the GPS timing signal, and send the GPS timing signal to the UPS device 900 and / or the data analysis, processing and recording device 200 to calibrate the time of the UPS device 900 and / or the data analysis, processing and recording device 200.

[0053] The display device 500 is used to display the working status of the data analysis, processing and recording device 200; for example, the working status of the system, such as normal operating status, alarm status and fault status, can be displayed through an LCD or LED.

[0054] The data analysis, processing and recording device 200 and the data analysis and presentation device 300 communicate through the second communication device 820, which may include wired and wireless communication methods. Wired communication can be achieved through RJ45 network cable or USB, and wireless communication can be achieved through 2G / 3G / 4G / 5G or WIFI. Both wired and wireless communication can achieve the above communication. The data analysis, processing and recording device 200 can upload data to the data analysis and presentation device 300, and can also receive the configuration and settings of the data analysis, processing and recording device 200 by the data analysis and presentation device 300. When the data analysis and presentation device 300 is connected to the Internet, Internet network time calibration can be implemented to achieve Internet network time synchronization of the data analysis, processing and recording device 200. The data acquired by the data analysis, processing and recording device 200 can be stored in a local storage device 700. When the data analysis, processing and recording device 200 communicates with the data analysis presentation device 300 through the second communication device 820, the stored data can be exported to the database 320 of the data analysis presentation device 300 through the communication management machine 310.

[0055] Through the second communication device 820 and / or the communication manager 310, the data analysis, processing and recording device 200 can work in an online mode or an offline mode. In the online mode, the data analysis, processing and recording device 200 communicates online with the communication manager 310 through the second communication device 820, and can upload the collected and recorded data online to the database 320 of the data analysis and presentation device 300, and at the same time store the collected and recorded data in the local storage device 700, so that the data analysis and presentation can be realized online through the data analysis background 330. In the offline mode, the data analysis, processing and recording device 200 and the data analysis and presentation device 300 do not communicate online in real time. Therefore, it will store the collected and recorded data in the local storage device 700. After the data analysis, processing and recording device 200 establishes communication with the communication manager 310 through the second communication device 820, the data of the storage device 700 is exported and stored in the database 320 through the data export function of the communication manager 320, and the data analysis and presentation can be realized online through the data analysis background 330.

[0056] like Figure 2 As shown, the data analysis processing and recording device 200 is the core of the operation data recording system of the UPS device of the present invention, which may include: a recording mode unit 210, a data recording unit 220, a data processing unit 230, a data setting unit 240, a timestamp unit 250, a data compression unit 260, and an alarm signal generating unit 270.

[0057] The data processing unit 230 is used to perform analog-to-digital conversion, filtering and calculation processing on the UPS device signal. For example, the data processing unit 230 can implement sampling of the UPS device signal, convert the analog quantity into a digital quantity, filter and calculate the sampled digital quantity, wherein the calculation includes the effective value, frequency, power, electric energy, FFT calculation, etc. of the AC signal. The timestamp unit 250 is used to timestamp the processed UPS device signal.

[0058] Furthermore, the data analysis, processing and recording device 200 can also communicate with the UPS device 900 through the first communication device 810, so as to obtain information such as faults, alarms, analog quantities and historical records of the UPS device 900, and the timestamp unit 250 will stamp the obtained data with the system timestamp.

[0059] The data analysis processing and recording device 200 can work in recording mode or alarm activation mode. Both functions can be set by the communication management machine 310 of the data analysis presentation device, or can be set by the system default or by the user. These two functions are effective regardless of whether the UPS operation data recording and analysis device is working online or offline. Figure 3 A schematic diagram of recording waveforms in alarm start mode is shown.

[0060] like Figure 3As shown, the system setting of the operation data recording system of the UPS device is defined as the alarm start mode. At this time, the recording mode unit 210 generates an alarm mode start signal based on the system setting. Therefore, the equipment of the operation data recording system of the UPS device will work in the alarm start mode. Then when the alarm signal generating unit 270 is triggered and generates an alarm signal. At this time, the data recording unit 220 will use a high sampling frequency to record the duration T of the alarm signal, the first time T2 before the alarm signal and the second time T3 after the alarm signal. The DC signal instantaneous waveform data and AC signal instantaneous waveform data of the UPS device, and use a low sampling frequency to record the duration T of the alarm signal, the third time T4 before the alarm signal and the fourth time T5 after the alarm signal. The AC signal effective value data and DC signal data of the UPS device. The above-mentioned high sampling rate records the alarm duration T and the DC signal instantaneous waveform data and AC signal instantaneous waveform data of the time T2 before the alarm and the time T3 after the alarm. Before being stored in the storage device 700 and / or sent to the data analysis and presentation device 300 through the second communication device 820, data compression can be achieved through a data compression algorithm. The compression algorithm can achieve the effect of halving or less after data compression. Data compression can be achieved by a data compression unit 260. The data compression unit 260 is used to completely store the initial sampling point data of the first sampling moment of the first sampling signal and / or the second sampling signal; calculate the sampling point deviation between the sampling data of each sampling moment of the first sampling signal and / or the second sampling signal and the initial sampling point data; each sampling point deviation and each of the initial sampling point data are combined to obtain the compressed data of the first sampling signal and / or the second sampling signal.

[0061] Figure 4 is based on Figure 2 The schematic diagram of the compression algorithm used by the data compression module recorded by the operation data recording system of the UPS device shown in FIG. Figure 4 As shown, if no compression algorithm is used, t 0 ~t n A total of n+1 data are collected in the time, and each data needs to be stored as an integer data of m bits in length, and the required storage capacity is (n+1)*m bits of storage space. After adopting the compression algorithm of the present invention, the complete storage t 0 The initial sampling point data y0 at time t is then calculated 0 Time and t 1 The sampling point deviation Δy at the moment 1 ;t 1 Time and t 2 The sampling point deviation Δy at the moment 2 , Δy can be calculated in turn3 ,~Δy n From this, the data can be decompressed and restored based on the initial value and deviation:

[0062] y 1 =y 0 +Δy 1

[0063] y n =y n-1 +Δy n .

[0064] In this way, the final data storage capacity is: 0 *m+(Δy 1 +Δy 2 +…+Δy n )*k.

[0065] The k above can be 1 / 2 of m p times, p is a positive integer 0, 1, 2... so the data can be compressed to about 1 / 2 of the original p times.

[0066] In the preferred embodiment of the present invention, in order to further save space and analyze faults and alarms in a targeted manner, for T 1 and T 6 The instantaneous waveform data of DC and AC are not recorded during the time period, and the AC effective value and DC signal data are recorded at a lower sampling rate during these two periods.

[0067] In this preferred embodiment, the alarm signal generating unit 270 can generate the alarm signal based on a fault signal or an alarm signal of the UPS device obtained from the UPS device 900, or can generate the alarm signal based on an input or bypass voltage signal collected by the UPS device 900 and a national standard or a set threshold, or can generate the alarm signal based on the output voltage, current and / or frequency of the UPS device 900 and a set threshold, or can generate the alarm signal based on the current and / or voltage of the battery of the UPS device 900 and a set threshold.

[0068] Specifically, the alarm signal generating unit 270 may generate the alarm signal based on the following information.

[0069] (1) The alarm signal generating unit 270 may obtain the fault and alarm information of the UPS device 900 through the first communication device 810 and the HMI monitoring 910 of the UPS device, thereby generating the alarm signal.

[0070] (2) The alarm signal generating unit 270 can generate the alarm signal based on the input or bypass voltage signal collected by the UPS device 900 and the national standard for power quality, and determine whether the input or bypass voltage exceeds the national standard requirements, wherein the relevant national standards for power quality include: GB / T12325-2008 power supply voltage deviation; GB / T15543-2008 three-phase voltage imbalance; GB / T14549-1993 public power grid harmonics; GB / T15945-1995 allowable frequency deviation of power system; GB / T12326-2008 voltage fluctuation and flicker; GB / T18481-2001 temporary overvoltage and transient overvoltage; GB / T30137-2013 voltage sag and short interruption.

[0071] (3) The alarm signal generating unit 270 may generate the alarm signal based on whether the current and / or voltage of the battery of the UPS device 900 exceeds a preset threshold.

[0072] (4) The alarm signal generating unit 270 may generate the alarm signal based on whether the output voltage, current, and frequency of the UPS device 900 exceed a set threshold.

[0073] In a preferred embodiment of the present invention, the data analysis, processing and recording device 200 further includes a data setting unit 240, which is used to set the time interval between the high sampling frequency and the low sampling frequency based on the characteristics of the detected signal; as well as the duration of the alarm signal, the first time before the alarm signal, the second time after the alarm signal, the third time before the alarm signal and the fourth time after the alarm signal.

[0074] In this preferred embodiment, the data setting unit 240 can set the above time T0-T6, the high sampling rate, and the low sampling rate by receiving the input of the communication management machine 310 of the data analysis and presentation device 300. Those skilled in the art can use any known method in the art to perform the above settings based on the teachings of the present invention.

[0075] All data recorded by the data recording unit 220 are stored in the storage device 700. The data analysis, processing and recording device 200 communicates online with the communication management machine 310 through the second communication device 820, and can upload the collected and recorded data online to the database 320 of the data analysis and presentation device 300. If the data analysis, processing and recording device 200 does not establish online communication with the data analysis and presentation device 300, the historical data stored in the storage device 700 can be periodically copied to the data analysis and presentation device 300 through the second communication device 820. In a simplified embodiment of the present invention, when data can be transmitted online, the storage device 700 and / or the data compression unit 240 may not be set.

[0076] Figure 5 is based on Figure 2 The schematic diagram of recording waveforms in the recording mode of the operation data recording system of the UPS device shown. The system setting of the operation data recording system of the UPS device is defined as the recording mode, for example, it is set by the data analysis and presentation device 300. At this time, the recording mode unit 210 generates a recording mode start signal based on the system setting. Therefore, the equipment of the operation data recording system of the UPS device will work in the recording mode. In the recording mode, regardless of whether the UPS device has an alarm, the data recording unit 220 continues to use a high sampling frequency to record the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device, and uses a low sampling frequency to record the effective value data of the AC signal and the DC signal data of the UPS device. Similarly, the signals of the high sampling rate recording and the low sampling rate recording can be set by the communication management machine 310, and the high sampling rate rate (or interval) and the low sampling rate rate in this mode can also be set by the communication management machine 310, which can be flexibly configured according to specific needs. For the sampled data obtained in the recording mode, the data compression unit 260 can also be used for compression.

[0077] Similarly, all data recorded by the data recording unit 220 are stored in the storage device 700. The data analysis, processing and recording device 200 communicates online with the communication management machine 310 through the second communication device 820, and can upload the collected and recorded data online to the database 320 of the data analysis and presentation device 300. If the data analysis, processing and recording device 200 does not establish online communication with the data analysis and presentation device 300, the historical data stored in the storage device 700 can be periodically copied to the data analysis and presentation device 300 through the second communication device 820. In a simplified embodiment of the present invention, when data can be transmitted online, the storage device 700 and / or the data compression unit 240 may not be provided.

[0078] All data recorded by the data recording unit 220 are stored in the database 320 of the data analysis and presentation device 300 after being processed by the communication management machine 310, wherein the database includes but is not limited to relational databases such as Oracle, MySQL / MariaDB, SQL Server, PostgreSQL, DB2, etc. or non-relational databases such as InfluxDB, Redis, MongoDB, etc. The data analysis backend 310 implements data analysis of the database 320, and its presentation method is as follows Figure 6 As shown. In the same coordinate system, the horizontal axis is based on the same time axis, and the vertical axis presents multiple signals. Based on the same time axis, it is very simple to realize the unified presentation of various related data when a fault or alarm occurs. The fault or alarm in the same coordinate system is selectable, and the signal is also selectable. For example, the UPS input instantaneous waveform signal, UPS input effective value signal, battery current signal, etc. can be displayed. This presentation method can assist customers in quickly diagnosing the cause of the fault or alarm.

[0079] In a further preferred embodiment of the present invention, the recording mode unit 210 can further generate a normal startup mode signal based on the system setting. The data recording unit 220 uses a second low sampling frequency to record the AC signal effective value data and DC signal data of the UPS device based on the normal startup mode signal. Normally, the interval of the second low sampling frequency is larger. That is, under normal circumstances, the AC instantaneous waveform is not recorded, and the AC effective value and DC signal are recorded at a time interval of 1 second. Therefore, under normal circumstances, only very sparse data is recorded (user-settable), and under abnormal circumstances, it is automatically recorded at a high density (the user can set the recording time interval).

[0080] Figure 7 FIG. 1 is a schematic block diagram of a third preferred embodiment of the operation data recording system of a UPS device of the present invention. Figure 7 As shown, the operation data recording system of the UPS device includes a data acquisition device 100, a data analysis processing and recording device 200, and a data analysis presentation device 300. In this embodiment, the data acquisition device 100 may include a plurality of sensors 110 disposed on the UPS device 900 to collect data on the UPS device 900 and a sampling unit 120 for communicating with the plurality of sensors 110.

[0081] In this preferred embodiment, the UPS device is an online interactive three-phase UPS device. Multiple sensors collect voltage and current signals of the input, output, bypass and battery of the UPS device, wherein the voltage is directly connected to the corresponding sampling point through the sampling line, and the input and output currents are installed on the input and output cables through open current transformers. The input is a three-phase three-wire system that only needs two CTs, and the output is distributed through three CTs to collect the current of each phase of the three phases, and the battery current is installed on the battery cable through an open current transformer. The sampling unit 120 can sample 9 AC voltages (AC 220V), 9 AC currents (CT secondary side AC 0~5A), 2 DC voltages (DC 0~850V), 5 standard current signals (4~20mA), and 5 standard voltage signals (0~10V). The above signals are converted into signals acceptable to the data analysis processing and recording device 200 after being processed by the sampling unit 120 for processing. For the input, bypass and output 9 AC phase voltages collected in this embodiment, two input currents and 3 output currents of the UPS are collected, and the battery voltage and battery current are collected.

[0082] The data analysis, processing and recording device 200 communicates with the HMI monitoring of the UPS device through the RS232 interface to obtain information such as the fault, alarm, status, analog data and historical records of the UPS device, and can also realize the setting and network time calibration of the UPS device. The backup power supply device 600 draws power from the output of the UPS device. The backup power supply device 600 can provide the required power for the data analysis, processing and recording device 200 and charge the backup power lithium battery. When the output of the UPS device loses power, the backup power lithium battery of the backup power supply discharges to supply power to the data analysis, processing and recording device 200. The backup power time is greater than 2 hours.

[0083] The GPS timing device 400 is used to receive the GPS timing signal, and send the GPS timing signal to the UPS device 900 and / or the data analysis, processing and recording device 200 to calibrate the time of the UPS device 900 and / or the data analysis, processing and recording device 200.

[0084] The display device 500 is used to display the working status of the data analysis, processing and recording device 200; for example, the working status of the system, such as normal operating status, alarm status and fault status, can be displayed through an LCD or LED.

[0085] The storage device 700 adopts an SD card with a capacity of 64G Byte, which can store data for at least half a year when working offline. When exporting data, the data can be exported from the SD to the database 320 of the data analysis and presentation device.

[0086] The second communication device can realize the communication establishment between the data analysis processing and recording device 200 and the data analysis presentation device 300, including wired and wireless communication methods. The wired communication can be realized through RJ45 network cable and USB, and the wireless method can be realized through 4G and WIFI.

[0087] In this embodiment, the data analysis and presentation device 300 includes a server or a CE (Customer Engineer) computer. The server and the CE computer are both installed with a communication management machine 310, a database 320, and a data analysis background software 330. The server can realize online work between the data recording and analysis device and the server. In this application, a server and a data recording and analysis device need to be provided with an online link. If there is no server on site, the data recording and analysis device can work offline. When the CE inspects the UPS equipment, it can establish communication with the data recording and analysis device through the CE computer, and export the data inside the data recording and analysis device to the CE computer for analysis and presentation.

[0088] The data processing unit 230 can sample the UPS device signal, convert the analog quantity into a digital quantity, filter and calculate the sampled digital quantity, wherein the calculation includes the effective value, frequency, power, electric energy, FFT calculation, etc. of the AC signal. The timestamp unit 250 is used to add a timestamp to the processed UPS device signal.

[0089] As mentioned above, Figure 8As shown, the alarm signal generating unit 270 obtains the fault and alarm information of the UPS device through RS232 in real time. When the UPS device fails or alarms, the data recording unit 220 stores the alarm duration T and the DC signal instantaneous waveform data and AC signal instantaneous waveform data of 30 seconds before and after to the local SD card, and records the alarm duration T and the AC signal effective value data and DC signal data of 180 seconds before and after to the local SD card. The sampling frequency of the AC instantaneous waveform can be set (3.2kHz, 6.4kHz, 12.8kHz), and the point interval of the AC signal effective value data and DC signal data can be set (20mS, 40mS, 60mS, 80mS, 100mS), which can be set by the data setting unit 240. The data setting unit 240 can be set by receiving user instructions or system settings through the communication management machine 310. The data compression of the high sampling rate recording interval uses 16-bit integer data to record the initial value and 8-bit data to record the deviation. The above compression method can reduce the storage space by half. When no alarm signal is received, in order to save storage space, the AC instantaneous waveform is not recorded, and the AC effective value and DC signal are recorded at a time interval of 1 second. Therefore, under normal circumstances, only very sparse data is recorded (user-settable), and in abnormal circumstances, it is automatically recorded at a high density (user-settable recording time interval).

[0090] When the data analysis, processing and recording device 200 and the data analysis and presentation device 300 or the CE computer are connected online via an RJ45 network cable, WIFI or 4G, the recorded data can be transmitted online to the data analysis and presentation device 300 or the CE computer, and the data can be stored in the database 320. When the data analysis, processing and recording device 200 and the data analysis and presentation device 300 or the CE computer are not connected, the CE computer can export all the data previously stored on the SD card to the database of the CE computer via a USB or RJ45 network cable connection.

[0091] As mentioned above, the data analysis background software 330 can realize group management, channel selection, right-click configuration, front and back flipping, zooming in and out, even snapshots, quick search or navigation of fault point data, waveform display and other functions. The data analysis background can assist users in quickly analyzing and locating the cause of the fault or alarm.

[0092] The operation data recording system of the UPS device of the present invention can work in the alarm start mode, so as to realize the recording of the alarm duration and the relevant waveform data of a period of time before and after the alarm, and then reproduce the data at the fault site, and assist customers and users to quickly analyze and solve problems. The operation data recording system of the UPS device of the present invention can also work in the recording mode, which can continuously record the waveform data of the selected signal. Through this mode, the CE and the user can be assisted to record the work or operation process of the system for a long time, which is convenient for subsequent data analysis. Further, the UPS device of the present invention can be switched between the alarm start mode and the recording mode. The working mode, the number of sampling signals, and the sampling channel of the operation data recording system of the UPS device of the present invention can be flexibly configured through the data setting unit, and can be adapted to different application scenarios. Further, the alarm start mode can be flexibly started in various ways. Further, through data compression, the storage space of data can be further saved.

[0093] Therefore, the present invention can be implemented by hardware, software or a combination of hardware and software. The present invention can be implemented in a centralized manner in at least one computer device, or in a decentralized manner by different parts distributed in several interconnected computer devices. Any computer device or other device that can implement the method of the present invention is applicable. The combination of common hardware and software can be a general-purpose computer device installed with a computer program, and the computer device is controlled by installing and executing the program to make it run according to the method of the present invention.

[0094] The invention may also be implemented by means of a computer program product, which contains all the features enabling the implementation of the method of the invention and which, when installed in a computer device, enables the implementation of the method of the invention. A computer program in this document refers to any expression of a set of instructions, written in any programming language, code or notation, which enables a device to have information processing capabilities to implement a specific function directly or after one or both of the following steps: a) conversion into another language, code or notation; b) reproduction in a different format.

[0095] Although the present invention is described by specific embodiments, it should be understood by those skilled in the art that various changes and equivalent substitutions may be made to the present invention without departing from the scope of the present invention. In addition, various modifications may be made to the present invention for specific situations or materials without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed, but should include all implementation methods falling within the scope of the claims of the present invention.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An operation data recording system for a UPS device, characterized in that: include: a data acquisition device, the data acquisition device being communicatively connected to the UPS device to acquire a collected UPS device signal from the UPS device; A data analysis processing and recording device, for analyzing, processing and recording the UPS device signal based on system settings; The data analysis, processing and recording device further comprises: a recording mode unit, generating a mode start signal based on the system setting; a data recording unit, which records a first sampling signal of the UPS device at a first sampling frequency based on the mode start signal, and records a second sampling signal of the UPS device at a second sampling frequency; and an alarm signal generating unit, configured to generate an alarm signal based on the UPS device signal; The recording mode unit generates an alarm mode start signal and a recording mode start signal based on the system setting; Based on the alarm signal and the alarm mode start signal, the data recording unit uses a high sampling frequency to record the duration of the alarm signal, the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device in a first time before the alarm signal and a second time after the alarm signal, and uses a low sampling frequency to record the duration of the alarm signal, the effective value data of the AC signal and the DC signal data of the UPS device in a third time before the alarm signal and a fourth time after the alarm signal.

2. The operation data recording system of the UPS device according to claim 1, characterized in that: The data analysis, processing and recording device further comprises: A data processing unit, used for performing analog-to-digital conversion, filtering and calculation processing on the UPS device signal; A data setting unit, configured to set the time intervals of the high sampling frequency and the low sampling frequency based on the characteristics of the UPS device signal; and the duration of the alarm signal, the first time before the alarm signal, the second time after the alarm signal, the third time before the alarm signal, and the fourth time after the alarm signal; A timestamp unit is used to add a timestamp to the processed UPS device signal.

3. The operation data recording system of the UPS device according to claim 2, characterized in that: The alarm signal generating unit is used to generate the alarm signal based on a fault signal or an alarm signal of the UPS device obtained from the UPS device, or to generate the alarm signal based on an input voltage signal or a bypass voltage signal collected by the UPS device and a national standard or a set threshold, or to generate the alarm signal based on the output voltage, current and / or frequency of the UPS device and a set threshold, or to generate the alarm signal based on the current and / or voltage of a battery of the UPS device and a set threshold.

4. The operation data recording system of the UPS device according to claim 3, characterized in that: Further including: A data analysis and presentation device is used to receive the first sampling signal, the second sampling signal and / or the alarm signal from the data analysis processing and recording device, or to receive the first sampling signal, the second sampling signal and / or the fault signal, and to simultaneously present the first sampling signal, the second sampling signal and / or the alarm signal based on the same time axis, or to present the first sampling signal, the second sampling signal and / or the fault signal and perform analysis.

5. The operation data recording system of the UPS device according to claim 1, characterized in that: The data recording unit is further used to record the instantaneous waveform data of the DC signal and the instantaneous waveform data of the AC signal of the UPS device at a high sampling frequency based on the recording mode start signal, and to record the effective value data of the AC signal and the DC signal data of the UPS device at a low sampling frequency.

6. The operation data recording system of the UPS device according to claim 1, characterized in that: The recording mode unit further generates a normal startup mode signal based on the system setting; the data recording unit records the AC signal effective value data and DC signal data of the UPS device using a second sampling frequency based on the normal startup mode signal.

7. The operation data recording system of the UPS device according to claim 4, characterized in that: The data analysis, processing and recording device further comprises: a data compression unit, configured to completely store the initial sampling point data of the first sampling signal and / or the second sampling signal at the first sampling moment; sequentially calculate the sampling point deviation between the sampling point data of each sampling moment of the first sampling signal and / or the second sampling signal and the sampling point data of the previous sampling moment; each of the deviations and each of the initial sampling point data constitute the compressed data of the first sampling signal and / or the second sampling signal; and The operation data recording system of the UPS device further includes a data storage device for storing compressed data of the first sampling signal and / or the second sampling signal.

8. The operation data recording system of the UPS device according to claim 7, characterized in that: Further including: A GPS timing device, used for receiving a GPS timing signal, and sending the GPS timing signal to the UPS device and / or the data analysis, processing and recording device to calibrate the UPS device and / or the data analysis, processing and recording device; A display device, used to display the working status of the data analysis, processing and recording device; A power supply and backup device, used to provide power supply and backup power for the data analysis, processing and recording device; A communication device that communicates with the data analysis and presentation device, wherein the communication device controls the data analysis, processing and recording device to operate in an online working mode and an offline working mode.

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