Intelligent Monitoring System and Method

Abstract

The present invention discloses an intelligent monitoring system and method. The intelligent monitoring system includes a data acquisition module and a control module. The data acquisition module is connected to a backup power supply and a battery pack. The data acquisition module includes a first DC acquisition module and a second DC acquisition module. The first DC acquisition module is used to acquire first DC data, and the second DC acquisition module is used to acquire second DC data. The control module is connected to the data acquisition module. When the backup power supply and the battery pack have a neutral line, the control module determines the data acquisition and monitoring mode according to the received first DC data and second DC data. When the backup power supply and the battery pack do not have a neutral line, the control module determines the data acquisition and monitoring mode according to the received first DC data or second DC data. The present invention realizes the monitoring of backup power supply battery packs with and without a neutral line.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack monitoring, and particularly to an intelligent monitoring system and method. Background Art

[0002] In modern society, the stability and reliability of power supply are the basis for ensuring the normal operation of various key facilities and systems. Whether it is a data center, a communication base station, a medical device, or an industrial control system, once a sudden power outage or power fluctuation occurs, it may lead to serious economic losses and service interruptions. Therefore, backup power sources, such as UPS (Uninterruptible Power Supply) uninterruptible power supplies, as key components of emergency power supply, their stability and reliability are particularly important.

[0003] The battery pack in the backup power supply system is the core component for providing emergency power. To ensure that these battery packs can play their roles at critical moments, it is necessary to monitor them in real time to master the battery state, predict potential faults, and perform maintenance in a timely manner. However, in practical applications, the battery pack configurations of different types and architectures in the backup power supply may or may not include a neutral line, and this difference poses challenges to the compatibility and accuracy of the monitoring system.

[0004] Traditional monitoring methods can often only monitor battery packs without a neutral line, only monitoring the positive and negative voltages of the battery pack and only monitoring a single pole. When the backup power supply battery pack has a neutral line, traditional monitoring methods cannot meet the monitoring requirements. Especially when facing backup power supplies of different brands, models, or configurations, traditional monitoring technologies are difficult to achieve seamless compatibility, resulting in users having to customize monitoring solutions for each situation separately. This not only limits the flexibility of the monitoring system but also increases the deployment and maintenance costs.

[0005] Therefore, to solve the above problems, the present invention provides an intelligent monitoring system and method that can monitor backup power supply battery packs with and without a neutral line. Summary of the Invention

[0006] The present invention provides an intelligent monitoring system and method, aiming to achieve the monitoring of backup power supply battery packs with and without a neutral line.

[0007] To solve the above technical problems, a first aspect of the present invention provides an intelligent monitoring system, which includes: a data acquisition module connected to a backup power supply and a battery pack. The data acquisition module includes a first DC acquisition module and a second DC acquisition module. The first DC acquisition module is used to acquire first DC data, and the second DC acquisition module is used to acquire second DC data; a control module connected to the data acquisition module; wherein, when the backup power supply and the battery pack have a neutral line, the control module confirms the data acquisition monitoring mode according to the received first DC data and second DC data; when the backup power supply and the battery pack do not have a neutral line, the control module confirms the data acquisition monitoring mode according to the received first DC data or second DC data.

[0008] Further, the HV- terminal of the first DC acquisition module and the HV+ terminal of the second DC acquisition module are connected to the midpoint of the DC bus between the backup power supply and the battery pack through a second fusing device.

[0009] Further, the first DC data includes a first current and a first voltage. The HV+ terminal of the first DC acquisition module is connected to the positive pole of the DC bus through a first fusing device to acquire the voltage to obtain the first voltage; the I+ terminal and the I- terminal of the first DC acquisition module are respectively connected to the positive wire and the negative wire of a first current sensing device on the positive pole of the DC bus to acquire the positive current to obtain the first current.

[0010] Further, the second DC data includes a second current and a second voltage. The HV+ terminal of the second DC acquisition module is connected to the negative pole of the DC bus through a third fusing device to acquire the voltage to obtain the second voltage; the I+ terminal and the I- terminal of the second DC acquisition module are respectively connected to the positive wire and the negative wire of a second current sensing device on the negative pole of the DC bus to acquire the negative current to obtain the second current.

[0011] Further, the data acquisition module further includes a power supply switching module and a DC / DC buck power supply module. Among them, the input terminal of the power supply switching module is connected to the DC bus, the output terminal of the power supply switching module is connected to the input terminal of the DC / DC buck power supply module, and the output terminal of the DC / DC buck power supply module is connected to the control module.

[0012] Further, the data acquisition module further includes a first power isolation module. The input terminal of the first power isolation module is connected to the output terminal of the DC / DC buck power supply module, and the output terminal of the first power isolation module is connected to the first DC acquisition module.

[0013] Further, the data acquisition module further includes a first digital isolation module, which is connected between the first DC acquisition module and the control module and is connected to the first power isolation module.

[0014] Further, the data acquisition module further includes a second power isolation module. The input end of the second power isolation module is connected to the output end of the DC / DC buck power module, and the output end of the second power isolation module is connected to the second DC acquisition module.

[0015] Further, the data acquisition module further includes a second digital isolation module, which is connected between the second DC acquisition module and the control module and is connected to the second power isolation module.

[0016] In a second aspect of the present invention, there is also provided an intelligent monitoring method, which is applied to the control module in the intelligent monitoring system described in the first aspect above. The method includes: receiving the first DC data and / or the second DC data collected by the data acquisition module, where the first DC data includes a first current and a first voltage, and the second DC data includes a second current and a second voltage; processing and analyzing the first voltage and / or the second voltage to obtain a first processed voltage and / or a second processed voltage, and performing voltage fluctuation detection based on the first processed voltage and / or the second processed voltage to obtain a voltage fluctuation detection result; processing the first current and / or the second current to obtain a first processed current and / or a second processed current, and calculating charge and discharge information based on preset rated parameters, the first processed current and / or the second processed current; generating real-time monitoring data and warning information based on preset fault thresholds, the voltage fluctuation detection result, and the charge and discharge information.

[0017] In the intelligent monitoring system and method disclosed in the present invention, the intelligent monitoring system collects first DC data through a first DC acquisition module and second DC data through a second DC acquisition module, and connects the control module to the data acquisition module. When the backup power supply and the battery pack have a neutral line, the control module confirms the data acquisition and monitoring mode based on the first DC data and the second DC data; when the backup power supply and the battery pack do not have a neutral line, the control module confirms the data acquisition and monitoring mode based on the first DC data or the second DC data, thereby realizing the monitoring of the backup power battery pack with and without a neutral line, not only improving the flexibility and compatibility of the monitoring system, but also reducing the deployment and maintenance costs. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 is a block diagram of an intelligent monitoring system provided by an embodiment of the present invention;

[0020] Figure 2 is a circuit schematic diagram of an intelligent monitoring system provided by an embodiment of the present invention;

[0021] Figure 3 is a connection diagram of the intelligent monitoring system with the backup power supply and the battery pack when the backup power supply and the battery pack have a neutral line;

[0022] Figure 4 is a connection diagram of the intelligent monitoring system with the backup power supply and the battery pack when the backup power supply and the battery pack do not have a neutral line;

[0023] Figure 5 is another connection diagram of the intelligent monitoring system with the backup power supply and the battery pack when the backup power supply and the battery pack do not have a neutral line;

[0024] Figure 6 is a flowchart of an intelligent monitoring method provided by an embodiment of the present invention;

[0025] Reference numerals: 10, intelligent monitoring system; 11, data acquisition module; 111, first DC acquisition module; 112, second DC acquisition module; 113, power supply switching module; 114, DC / DC buck power supply module; 115, first power isolation module; 116, second power isolation module; 117, first digital isolation module; 118, second digital isolation module; 12, control module; U4, first current sensing device; U10, second current sensing device; F1, first fusing device; F2, second fusing device; F3, third fusing device. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0027] It should be understood that, as used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0028] It should also be understood that the terminology used in this specification of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification of the present invention and the appended claims, unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0029] It should be further understood that the term "and / or" used in this specification of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] Figures 1 to 5Shows an embodiment of the intelligent monitoring system provided by the present invention. The intelligent monitoring system 10 of this embodiment includes a data acquisition module 11 and a control module 12. Among them, the data acquisition module 11 is connected to the backup power supply and the battery pack. The data acquisition module 11 includes a first DC acquisition module 111 and a second DC acquisition module 112. The first DC acquisition module 111 is used to acquire first DC data, and the second DC acquisition module 112 is used to acquire second DC data; the control module 12 is connected to the data acquisition module 11; among them, when the backup power supply and the battery pack have a neutral line, the control module 12 confirms the data acquisition monitoring mode according to the received first DC data and second DC data; when the backup power supply and the battery pack do not have a neutral line, the control module 12 confirms the data acquisition monitoring mode according to the received first DC data or second DC data. It should be noted that in this embodiment, by setting the first DC acquisition module 111 and the second DC acquisition module 112 in series and connecting the control module 12 to the data acquisition module 11, when the backup power supply and the battery pack have a neutral line, the control module 12 confirms the data acquisition monitoring mode according to the first DC data acquired by the first DC acquisition module 111 and the second DC data acquired by the second DC acquisition module 112; when the backup power supply and the battery pack do not have a neutral line, the control module 12 confirms the data acquisition monitoring mode according to the first DC data or the second DC data, thereby realizing the monitoring of the backup power supply battery pack with and without a neutral line, not only improving the flexibility and compatibility of the monitoring system, but also reducing the deployment and maintenance costs, and can be widely applied to various backup power supply battery pack monitoring scenarios to meet the diverse needs of different users.

[0031] Please refer to Figure 1 and Figure 2 , in an embodiment, such as this embodiment, the HV- terminal of the first DC acquisition module 111 is connected to the HV+ terminal of the second DC acquisition module 112 through a second fuse device F2 to the midpoint of the DC bus between the backup power supply and the battery pack. Specifically, the HV- terminal of the first DC acquisition module 111 and the HV+ terminal of the second DC acquisition module 112 are connected in series to form a neutral point HVN. The neutral point HVN is connected to the midpoint of the DC bus between the backup power supply and the battery pack through the second fuse device F2, that is, the neutral point HVN is connected to the LHN of the direct connection bus through the second fuse device F2.

[0032] Please refer to Figure 1 and Figure 2, in an embodiment, such as this embodiment, the first DC data includes a first current and a first voltage. The HV+ terminal of the first DC acquisition module 111 is connected to the positive pole of the DC bus through a first fusing device F1 to acquire the voltage to obtain the first voltage; the I+ terminal and the I- terminal of the first DC acquisition module 111 are respectively connected to the positive wire and the negative wire of a first current sensing device U4 on the positive pole of the DC bus to acquire the positive current to obtain the first current. The second DC data includes a second current and a second voltage. The HV+ terminal of the second DC acquisition module 112 is connected to the negative pole of the DC bus through a third fusing device F3 to acquire the voltage to obtain the second voltage; the I+ terminal and the I- terminal of the second DC acquisition module 112 are respectively connected to the positive wire and the negative wire of a second current sensing device U10 on the negative pole of the DC bus to acquire the negative current to obtain the second current. Specifically, the HV+ terminal of the first DC acquisition module 111 is connected to the LHV+ of the DC bus through the first fusing device F1. The HV+ terminal of the second DC acquisition module 112 is connected to the LHV- of the DC bus through the third fusing device F3. It should be noted that in this embodiment, the first fusing device F1, the second fusing device F2, and the third fusing device F3 are the same fusing device, all including fuses; the positive current is the positive half-cycle current of the DC bus, and the negative current is the negative half-cycle current of the DC bus. It should also be noted that in this embodiment, the first current sensing device U4 and the second current sensing device U10 are the same current sensing device, all including current sensors, and the current sensors can be DC current sensors or Hall current sensors.

[0033] Please refer to Figure 1 and Figure 2, in one embodiment, such as this embodiment, the data acquisition module 11 further includes a power supply switching module 113 and a DC / DC buck power supply module 114. Among them, the input end of the power supply switching module 113 is connected to the DC bus, the output end of the power supply switching module 113 is connected to the input end of the DC / DC buck power supply module 114, and the output end of the DC / DC buck power supply module 114 is connected to the control module 12. It should be noted that in this embodiment, the power supply switching module 113 has the function of automatically switching and outputting the two-way direct current of LHV+ and LHN of the DC bus and LHN and LHV - of the DC bus. When both of the above two-way direct currents have voltage or any one of them has voltage, the power supply switching module 113 can output the corresponding DC power supply at the V- and V + ports, that is, the power supply switching module 113 can ensure that the monitoring system can ensure the normality and stability of system power supply in any mode with or without a neutral line. It should also be noted that in this embodiment, the DC / DC buck power supply module 114 is used to convert the high-voltage direct current output by the power supply switching module 113 into 3.3V / 5V direct current, so as to provide a stable power supply for the control module 12 and other functional modules. Understandably, the DC / DC buck power supply module is preferably an isolated power supply module to further enhance the electrical isolation performance of the monitoring system.

[0034] Please refer to Figure 1 and Figure 2 , in one embodiment, such as this embodiment, the data acquisition module 11 further includes a first power supply isolation module 115. The input end of the first power supply isolation module 115 is connected to the output end of the DC / DC buck power supply module 114, and the output end of the first power supply isolation module 115 is connected to the first DC acquisition module 111; the data acquisition module 11 further includes a first digital isolation module 117. The first digital isolation module 117 is connected between the first DC acquisition module 111 and the control module 12 and is connected to the first power supply isolation module 115. Understandably, in this embodiment, the first power supply isolation module 115 can supply power to the first DC acquisition module 111 and the first digital isolation module 117 to ensure the independent operation of the modules and improve the stability and security of the intelligent monitoring system 10. It should be noted that in this embodiment, the first digital isolation module 117 can effectively prevent the influence of common-mode interference, noise and other problems on the communication quality, and thus ensure the security of the control module 12.

[0035] Please refer to Figure 1 and Figure 2, in an embodiment, such as this embodiment, the data acquisition module 11 further includes a second power isolation module 116. The input end of the second power isolation module 116 is connected to the output end of the DC / DC buck power module 114, and the output end of the second power isolation module 116 is connected to the second DC acquisition module 112. The data acquisition module 11 further includes a second digital isolation module 118. The second digital isolation module 118 is connected between the second DC acquisition module 112 and the control module 12 and is connected to the second power isolation module 116. Understandably, in this embodiment, the second power isolation module 116 can supply power to the second DC acquisition module 112 and the second digital isolation module 118 to ensure the independent operation of the modules and improve the stability and security of the intelligent monitoring system 10. It should be noted that, in this embodiment, the second digital isolation module 118 can effectively prevent the influence of common-mode interference, noise and other problems on the communication quality, thereby ensuring the security of the control module 12. It should also be noted that, in this embodiment, the control module 12 is an MCU module, and maintains communication connections with each module through communication methods such as UART, SPI or IIC, receives data and issues control instructions.

[0036] For easy understanding, as Figures 3 to 5 shown, a schematic diagram of the connection between the intelligent monitoring system 10 and the backup power supply and battery pack when the backup power supply and battery pack have a neutral line and do not have a neutral line is shown.

[0037] As Figure 3 shown, a schematic diagram of the connection between the intelligent monitoring system 10 and the backup power supply and battery pack when the backup power supply and battery pack have a neutral line is shown. As Figure 3As shown, the "+" pole, "N" pole, and "-" pole of the backup power supply and the battery pack are respectively connected to LHV+, LHN, and LHV- of the DC bus. After the connection is completed, the first DC acquisition module 111 and the second DC acquisition module 112 start to work. The HV + terminal of the first DC acquisition module 111 and the HV - terminal of the second DC acquisition module 112 collect the DC voltage data of the DC bus of the backup power supply and the battery pack, that is, the first voltage and the second voltage are collected. Due to the presence of the neutral line, both the first DC acquisition module 111 and the second DC acquisition module 112 can collect effective voltage data. At the same time, the first current sensing device U4 transmits the positive half-cycle current of the DC bus to the first DC acquisition module 111, and the second current sensing device U10 transmits the negative half-cycle current of the DC bus to the second DC acquisition module 112, that is, the first current and the second current are collected. The first DC acquisition module 111 transmits the collected first voltage and first current to the control module 12 through the first digital isolation module 117, and the second DC acquisition module 112 transmits the collected second voltage and second current to the control module 12 through the second digital isolation module 118. The control module 12 detects that both the first DC acquisition module 111 and the second DC acquisition module 112 have collected voltage data, and the control module 12 automatically adapts to the data acquisition and monitoring mode with a neutral line. In the data acquisition and monitoring mode with a neutral line, the control module 12 calculates and analyzes the collected first voltage, second voltage, first current, and second current to generate real-time monitoring data and warning information. It should be noted that in this embodiment, when the control module 12 is manually set to the neutral mode, the control module 12 adapts to the data acquisition and monitoring mode with a neutral line. Understandably, when the control module 12 is manually set to the non-neutral mode, the control module 12 adapts to the data acquisition and monitoring mode without a neutral line.

[0038] As Figure 4 shown, a connection schematic diagram of the intelligent monitoring system 10, the backup power supply, and the battery pack when the backup power supply and the battery pack do not have a neutral line is shown. As Figure 4As shown, the "+" and "-" poles of the backup power supply and the battery pack are respectively connected to LHV+ and LHN of the DC bus. At this time, LHV- is not connected. In this connection mode, the HV+ terminal of the first DC acquisition module 111 is fuse-connected to LHV+ of the DC bus through the first fuse device F1. The HV- terminal of the first DC acquisition module 111 is connected in series with the HV+ terminal of the second DC acquisition module 112 to form a neutral point HVN and is connected to LHN, while the HV- terminal of the second DC acquisition module 112 is left floating; the first current sensing device U4 is connected between the I+ and I- terminals of the first DC acquisition module 111 to collect the positive half-cycle current of the DC bus. Since the I+ and I- terminals of the second DC acquisition module 112 are not completely connected by the circuit, there is no effective acquisition data; after the first DC acquisition module 111 acquires the first voltage and the first current, it is transmitted to the control module 12 through the first digital isolation module 117. The control module 12 detects only the first voltage data and the first current data acquired by the first DC acquisition module 111, so as to adapt to the neutral-line-free data acquisition and monitoring mode; in the neutral-line-free data acquisition and monitoring mode, the control module 12 processes only the first voltage and the first current from the first DC acquisition module 111 and ignores the data acquired by the second DC acquisition module 112; the control module 12 continuously monitors the data. If data anomalies are found, a fault alarm signal is sent in a timely manner to ensure the safe operation of the system.

[0039] As Figure 5 shown, it shows another connection schematic diagram of the intelligent monitoring system 10 with the backup power supply and the battery pack when the backup power supply and the battery pack do not have a neutral line. As Figure 5As shown, the "+" and "-" poles of the backup power supply and the battery pack are respectively connected to LHN and LHV of the DC bus in a one-to-one correspondence. At this time, LHV + is not connected. In this connection method, the HV - terminal of the second DC acquisition module 112 is connected to LHV- of the DC bus of the backup power supply and the battery pack through the third fuse device F3 in a fused manner. The HV + terminal of the second DC acquisition module 112 and the HV - terminal of the first DC acquisition module 111 are connected in series to form a neutral point HVN and are connected to LHN, while the HV + terminal of the first DC acquisition module 111 is left floating. The second current sensing device U10 is connected to the I+ and I - terminals of the second DC acquisition module 112 to collect the negative half-cycle current of the DC bus. Since the I+ and I - terminals of the first DC acquisition module 111 are not completely connected by the circuit, no effective data can be collected. After the second DC acquisition module 112 collects the second voltage and the second current, it is transmitted to the control module 12 through the second digital isolation module 118. The control module 12 detects only the second voltage data and the second current data collected by the second DC acquisition module 112, so as to adapt to the data acquisition and monitoring mode without a neutral line. In the data acquisition and monitoring mode without a neutral line, the control module 12 processes the second voltage and the second current only from the second DC acquisition module 112 and ignores the data collected by the first DC acquisition module 111. The control module 12 continuously monitors the data. If it finds that the data is abnormal, it will send out a fault alarm signal in time to ensure the safe operation of the system.

[0040] Referring to Figure 6 , Figure 6 FIG. is a schematic flow chart of an intelligent monitoring method provided by an embodiment of the present invention. This intelligent monitoring method is applied to the control module in the above intelligent monitoring system. The following will further elaborate on the specific implementation steps of the intelligent monitoring method of the present invention with this method. As Figure 6 shown, this method includes steps S110 - S140:

[0041] S110. Receive the first DC data and / or the second DC data collected by the data acquisition module, where the first DC data includes the first current and the first voltage, and the second DC data includes the second current and the second voltage;

[0042] S120. Process and analyze the first voltage and / or the second voltage to obtain the first processed voltage and / or the second processed voltage, and perform voltage fluctuation detection based on the first processed voltage and / or the second processed voltage to obtain a voltage fluctuation detection result;

[0043] S130. Process the first current and / or the second current to obtain the first processed current and / or the second processed current, and calculate charge and discharge information based on preset rated parameters, the first processed current and / or the second processed current;

[0044] S140. Generate real-time monitoring data and warning information based on a preset fault threshold, the voltage fluctuation detection result, and the charge and discharge information.

[0045] In an embodiment of the present invention, when the backup power supply and the battery pack have a neutral line, the control module receives the first DC data and the second DC data collected by the data acquisition module. Among them, the first DC data includes a first current and a first voltage, and the second DC data includes a second current and a second voltage; the first voltage and the second voltage are processed and analyzed to obtain a first processed voltage and / or a second processed voltage, and a voltage fluctuation detection result is obtained by performing voltage fluctuation detection based on the first processed voltage and the second processed voltage; the first current and the second current are processed to obtain a first processed current and a second processed current, and the charge and discharge information is calculated according to preset rated parameters, the first processed current, and the second processed current. Understandably, when the backup power supply and the battery pack do not have a neutral line, the first DC data or the second DC data collected by the data acquisition module is received; the first voltage or the second voltage is processed and analyzed to obtain a first processed voltage or a second processed voltage, and a voltage fluctuation detection result is obtained by performing voltage fluctuation detection based on the first processed voltage or the second processed voltage; the first current or the second current is processed to obtain a first processed current or a second processed current, and the charge and discharge information is calculated according to preset rated parameters, the first processed current, or the second processed current. Finally, the control module generates real-time monitoring data and warning information based on a preset fault threshold, the voltage fluctuation detection result, and the charge and discharge information. It should be noted that in this embodiment, the processing and analysis of the first voltage and / or the second voltage can be filtering processing and stability analysis, and the filtering processing can remove noise interference; the voltage fluctuation detection based on the first processed voltage and / or the second processed voltage is to detect whether the first processed voltage and / or the second processed voltage fluctuates within a normal range; the processing of the first current and / or the second current can specifically be integral operation; the charge and discharge information includes information such as the remaining power and the charge and discharge status, and the preset rated parameters are the rated parameters of the battery pack; the control module generates real-time monitoring data and warning information based on a preset fault threshold, the voltage fluctuation detection result, and the charge and discharge information. Once data anomalies are found, corresponding fault alarm signals are immediately triggered to prompt the user to check and maintain the system.

[0046] In summary, for the intelligent monitoring system and method provided by the present invention, the intelligent monitoring system connects the first DC acquisition module and the second DC acquisition module in series, and connects the control module to the first DC acquisition module and the second DC acquisition module through the first digital isolation module and the second digital isolation module. The first DC acquisition module is used to acquire first DC data, and the second DC acquisition module is used to acquire second DC data. When the backup power supply and the battery pack have a neutral line, the control module determines the data acquisition and monitoring mode according to the first DC data and the second DC data; when the backup power supply and the battery pack do not have a neutral line, the control module determines the data acquisition and monitoring mode according to the first DC data or the second DC data, thereby realizing the monitoring of the backup power supply battery pack with and without a neutral line, not only improving the flexibility and compatibility of the monitoring system, but also reducing the deployment and maintenance costs. The intelligent monitoring system and method provided by the present invention can be widely applied to various monitoring scenarios of backup power supply battery packs to meet the diverse needs of different users. The intelligent monitoring system disclosed by the present invention solves the problems that the existing monitoring methods cannot monitor the backup power supply battery pack with a neutral line and the monitoring of the backup power supply battery pack without a neutral line is not comprehensive enough.

[0047] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or replacements, and these modifications or replacements should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An intelligent monitoring system, characterized in that: include: A data acquisition module connected to the backup power supply and the battery pack, the data acquisition module comprising a first DC acquisition module and a second DC acquisition module, the first DC acquisition module being used to acquire first DC data, and the second DC acquisition module being used to acquire second DC data; A control module connected to the data acquisition module; Wherein, when the backup power supply and the battery pack have a neutral line, the control module confirms the data acquisition monitoring mode according to the received first DC data and the second DC data; when the backup power supply and the battery pack do not have a neutral line, the control module confirms the data acquisition monitoring mode according to the received first DC data or the second DC data; The HV- terminal of the first DC acquisition module and the HV+ terminal of the second DC acquisition module are connected to the midpoint of the DC bus between the backup power supply and the battery pack via a second fuse device; The first DC data includes a first current and a first voltage. The HV+ terminal of the first DC acquisition module is connected to the positive electrode of the DC bus through a first fuse device to acquire the voltage to obtain the first voltage. The I+ terminal and the I- terminal of the first DC acquisition module are respectively connected to the positive line and the negative line of the first current sensor device on the positive electrode of the DC bus to acquire the forward current to obtain the first current. The second DC data includes a second current and a second voltage. The HV- terminal of the second DC acquisition module is connected to the negative pole of the DC bus via a third fuse device to acquire the voltage to obtain the second voltage; the I+ terminal and I- terminal of the second DC acquisition module are respectively connected to the positive line and negative line of the second current sensing device on the negative pole of the DC bus to acquire the negative current to obtain the second current.

2. The intelligent monitoring system according to claim 1, characterized in that: The data acquisition module also includes a power switching module and a DC / DC step-down power supply module, wherein the input end of the power switching module is connected to the DC bus, the output end of the power switching module is connected to the input end of the DC / DC step-down power supply module, and the output end of the DC / DC step-down power supply module is connected to the control module.

3. The intelligent monitoring system according to claim 2, characterized in that: The data acquisition module also includes a first power isolation module, the input end of the first power isolation module is connected to the output end of the DC / DC step-down power supply module, and the output end of the first power isolation module is connected to the first DC acquisition module.

4. The intelligent monitoring system according to claim 3, characterized in that: The data acquisition module also includes a first digital isolation module, which is connected between the first DC acquisition module and the control module and is connected to the first power isolation module.

5. The intelligent monitoring system according to claim 2, characterized in that: The data acquisition module also includes a second power isolation module, the input end of the second power isolation module is connected to the output end of the DC / DC step-down power supply module, and the output end of the second power isolation module is connected to the second DC acquisition module.

6. The intelligent monitoring system according to claim 5, characterized in that: The data acquisition module also includes a second digital isolation module, which is connected between the second DC acquisition module and the control module and is connected to the second power supply isolation module.

7. An intelligent monitoring method, applied to a control module in an intelligent monitoring system according to any one of claims 1 to 6, characterized in that: include: Receiving first DC data and / or second DC data collected by the data collection module, wherein the first DC data includes a first current and a first voltage, and the second DC data includes a second current and a second voltage; performing filtering processing and stability analysis on the first voltage and / or the second voltage in sequence to obtain a first processed voltage and / or a second processed voltage, and performing voltage fluctuation detection on the first processed voltage and / or the second processed voltage to obtain a voltage fluctuation detection result; Integrating the first current and / or the second current to obtain a first processing current and / or a second processing current, and calculating charging and discharging information according to preset rated parameters, the first processing current and / or the second processing current, wherein the charging and discharging information includes a remaining power and a charging and discharging state; Real-time monitoring data and early warning information are generated according to a preset fault threshold, the voltage fluctuation detection result and the charge and discharge information.

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