Intelligent monitoring system and method

Abstract

The invention discloses an intelligent monitoring system and method.The intelligent monitoring system comprises a data acquisition module and a control module, the data acquisition module is connected with a backup power source and a battery pack, and the data acquisition module comprises a first direct current acquisition module and a second direct current acquisition module; the first direct current acquisition module is used for acquiring first direct current data, and the second direct current acquisition module is used for acquiring second direct current data; the control module is connected with the data acquisition module; wherein when the backup power supply and the battery pack have neutral lines, the control module confirms a data acquisition monitoring mode according to the received first direct current data and second direct current data; and when the back-up power supply and the battery pack do not have the neutral line, the control module confirms a data acquisition monitoring mode according to the received first direct current data or the second direct current data. According to the invention, the back-up power supply battery pack with or without the neutral line can be monitored.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack monitoring, and in particular 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, communication base station, medical equipment, or industrial control system, once a sudden power outage or power fluctuation occurs, it may cause serious economic losses and service interruption. Therefore, as a key component of emergency power supply, the stability and reliability of backup power supply, such as UPS (Uninterruptible Power Supply), are particularly important.

[0003] The battery pack in the backup power system is the core component for providing emergency power. In order to ensure that these battery packs can play a role at critical moments, they must be monitored in real time to understand the battery status, predict potential failures, and perform maintenance in a timely manner. However, in actual applications, backup power battery pack configurations of different types and architectures may or may not contain a neutral line, and this difference poses a challenge to the compatibility and accuracy of the monitoring system.

[0004] Traditional monitoring methods can often only monitor battery packs without neutral lines, only monitor the positive and negative voltages of the battery packs, and only monitor single poles. When the backup power battery pack has a neutral line, the traditional monitoring method cannot meet the monitoring requirements, especially when facing backup power supplies of different brands, models or configurations. Traditional monitoring technology is difficult to achieve seamless compatibility, forcing users to customize monitoring solutions for each situation, which not only limits the flexibility of the monitoring system, but also increases deployment and maintenance costs.

[0005] Therefore, in order to solve the above problems, the present invention provides an intelligent monitoring system and method capable of monitoring backup power battery packs with a neutral line and without a neutral line. Summary of the invention

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

[0007] In order to solve the above technical problems, the first aspect of the present invention provides an intelligent monitoring system, which includes: a data acquisition module, which 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 collect first DC data, and the second DC acquisition module is used to collect second DC data; a control module, which is 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.

[0008] Furthermore, 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.

[0009] Furthermore, the first DC data includes a first current and a first voltage, and the HV+ terminal of the first DC acquisition module is connected to the positive pole of the DC bus via a first fuse device to acquire the voltage to obtain the first voltage; the I+ terminal and I- terminal of the first DC acquisition module are respectively connected to the positive line and negative line of the first current sensing device on the positive pole of the DC bus to acquire the forward current to obtain the first current.

[0010] Furthermore, the second DC data includes a second current and a second voltage, and 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.

[0011] Furthermore, 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.

[0012] Furthermore, 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.

[0013] Furthermore, 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.

[0014] Furthermore, 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.

[0015] Furthermore, 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.

[0016] The second aspect of the present invention also provides an intelligent monitoring method, which is applied to the control module in the intelligent monitoring system described in the first aspect above, and comprises: receiving first DC data and / or second DC data collected by a data acquisition module, wherein the first DC data comprises a first current and a first voltage, and the second DC data comprises 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 charging and discharging information based on preset rated parameters, the first processed current and / or the second processed current; generating real-time monitoring data and early warning information based on a preset fault threshold, the voltage fluctuation detection result and the charging and discharging information.

[0017] The intelligent monitoring system and method disclosed in the present invention, wherein the intelligent monitoring system collects first DC data and second DC data by setting a first DC acquisition module and a second DC acquisition module, and connects a control module with a data acquisition module. 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 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 first DC data or the second DC data, thereby realizing the monitoring of backup power battery packs with and without a neutral line, which not only improves the flexibility and compatibility of the monitoring system, but also reduces the deployment and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0019] Figure 1 is a block diagram of an intelligent monitoring system provided by an embodiment of the present invention; Figure 2 is a circuit schematic diagram of an intelligent monitoring system provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the connection between the intelligent monitoring system and the backup power supply and the battery pack when the backup power supply and the battery pack provided by one embodiment of the present invention have a neutral line; Figure 4 It is a connection diagram of the intelligent monitoring system, the backup power supply and the battery pack when the backup power supply and the battery pack provided by one embodiment of the present invention do not have a neutral line; Figure 5 It is another connection diagram of the intelligent monitoring system, the backup power supply and the battery pack when the backup power supply and the battery pack provided by one embodiment of the present invention do not have a neutral line; Figure 6 is a flow chart of an intelligent monitoring method provided by an embodiment of the present invention; Figure numerals: 10, intelligent monitoring system; 11, data acquisition module; 111, first DC acquisition module; 112, second DC acquisition module; 113, power switching module; 114, DC / DC step-down 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 fuse device; F2, second fuse device; F3, third fuse device. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0022] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0023] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0024] Figures 1 to 5An embodiment of the intelligent monitoring system provided by the present invention is shown. The intelligent monitoring system 10 of this embodiment includes a data acquisition module 11 and a control module 12, wherein the data acquisition module 11 is connected to the backup power supply and the battery pack, and 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 collect first DC data, and the second DC acquisition module 112 is used to collect second DC data; the control module 12 is connected to the data acquisition module 11; wherein, 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 the 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 the 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 collected by the first DC acquisition module 111 and the second DC data collected 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 backup power battery packs with and without neutral lines, which not only improves the flexibility and compatibility of the monitoring system, but also reduces the deployment and maintenance costs. It can be widely used in various backup power battery pack monitoring scenarios to meet the diverse needs of different users.

[0025] See also Figure 1 and Figure 2 In one embodiment, such as the present embodiment, the HV- terminal of the first DC acquisition module 111 and the HV+ terminal of the second DC acquisition module 112 are connected to the midpoint of the DC bus between the backup power supply and the battery pack via the second fuse device F2. 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, and the neutral point HVN is connected to the midpoint of the DC bus between the backup power supply and the battery pack via the second fuse device F2, that is, the neutral point HVN is connected to the LHN of the direct-connected bus via the second fuse device F2.

[0026] See also Figure 1 and Figure 2In one embodiment, such as the present embodiment, the first DC data includes a first current and a first voltage, and the HV+ terminal of the first DC acquisition module 111 is connected to the positive pole of the DC bus through the first fuse 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 line and the negative line of the first current sensor 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, and the HV+ terminal of the second DC acquisition module 112 is connected to the negative pole of the DC bus through the third fuse 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 line and the negative line of the second current sensor 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 fuse device F1. The HV+ terminal of the second DC acquisition module 112 is connected to the LHV- of the DC bus through the third fuse device F3. It should be noted that, in the present embodiment, the first fuse device F1, the second fuse device F2 and the third fuse device F3 are the same fuse devices, all including fuses; the forward 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 the present embodiment, the first current sensor device U4 and the second current sensor device U10 are the same current sensor devices, both including current sensors, and the current sensors can be DC current sensors or Hall current sensors.

[0027] See also Figure 1 and Figure 2In one embodiment, such as this embodiment, the data acquisition module 11 further includes a power switching module 113 and a DC / DC step-down power module 114, wherein the input end of the power switching module 113 is connected to the DC bus, the output end of the power switching module 113 is connected to the input end of the DC / DC step-down power module 114, and the output end of the DC / DC step-down power module 114 is connected to the control module 12. It should be noted that in this embodiment, the power switching module 113 has the function of automatically switching and outputting the two direct currents LHV+ and LHN of the DC bus and LHN and LHV- of the DC bus. When both of the above two direct currents have voltage or any one of them has voltage, the power switching module 113 can output the corresponding DC power at the V- and V+ ports, that is, the power switching module 113 can ensure that the monitoring system can ensure the normality and stability of the system power supply in any mode whether it has a neutral line or does not have a neutral line. It should also be noted that, in this embodiment, the DC / DC step-down power supply module 114 is used to convert the high-voltage direct current output by the power switching module 113 into 3.3V / 5V direct current, thereby providing a stable power supply for the control module 12 and other functional modules. It is understandable that the DC / DC step-down power supply module is preferably an isolated power supply module to further enhance the electrical isolation performance of the monitoring system.

[0028] See also Figure 1 and Figure 2 In one embodiment, such as the present embodiment, the data acquisition module 11 further includes a first power isolation module 115, the input end of the first power isolation module 115 is connected to the output end of the DC / DC step-down power module 114, and the output end of the first power 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 isolation module 115. It can be understood that in the present embodiment, the first power 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 safety of the intelligent monitoring system 10. It should be noted that in the present embodiment, the first digital isolation module 117 can effectively prevent the influence of common mode interference, noise and other problems on the communication quality, thereby ensuring the safety of the control module 12.

[0029] See also Figure 1 and Figure 2In one embodiment, such as the present embodiment, the data acquisition module 11 further includes a second power supply isolation module 116, the input end of the second power supply isolation module 116 is connected to the output end of the DC / DC step-down power supply module 114, and the output end of the second power supply 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 supply isolation module 116. It can be understood that in the present embodiment, the second power supply 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 safety of the intelligent monitoring system 10. It should be noted that in the present 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 safety of the control module 12. It should also be noted that, in the present embodiment, the control module 12 is an MCU module, which maintains communication connection with each module through communication methods such as UART, SPI or IIC, receives data and issues control instructions.

[0030] For ease of understanding, Figures 3 to 5 As shown, a schematic diagram of the connection between the intelligent monitoring system 10 and the backup power supply and the battery pack is shown when the backup power supply and the battery pack have a neutral line and when the backup power supply and the battery pack do not have a neutral line.

[0031] like Figure 3 As shown, it shows a schematic diagram of the connection between the intelligent monitoring system 10 and the backup power supply and the battery pack when the backup power supply and the battery pack have a neutral line. Figure 3As shown, the "+" pole, "N" pole and "-" pole of the backup power supply and the battery pack are connected to the LHV+, LHN and LHV- of the DC bus respectively. After the connection is completed, the first DC acquisition module 111 and the second DC acquisition module 112 start to work, and the HV+ end of the first DC acquisition module 111 and the HV- end of the second DC acquisition module 112 collect the DC voltage data of the backup power supply and the DC bus of the battery pack, that is, collect the first voltage and the second voltage; due to the presence of a neutral line, the first DC acquisition module 111 and the second DC acquisition module 112 can both collect effective voltage data, and at the same time, the first current sensor device U4 transmits the positive half-cycle current of the DC bus to the first DC acquisition module 111, and the second current sensor device U10 transmits the negative half-cycle current of the DC bus to the second DC acquisition module 112, that is, collects the first current and the second current; the first DC acquisition module 111 collects the first voltage and the first current through the first digital isolation The isolation module 117 transmits the collected second voltage and second current to the control module 12, and the second DC acquisition module 112 transmits the collected second voltage and second current to the control module 12 via the second digital isolation module 118. The control module 12 detects that 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 neutral line data acquisition and monitoring mode. In the neutral line data acquisition and monitoring mode, 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 early warning information. It should be noted that in this embodiment, when the control module 12 is manually set to the neutral line mode, the control module 12 is adapted to the neutral line data acquisition and monitoring mode. It can be understood that when the control module 12 is manually set to the non-neutral mode, the control module 12 is adapted to the non-neutral line data acquisition and monitoring mode.

[0032] like Figure 4 As shown, a schematic diagram of the connection between the intelligent monitoring system 10 and the backup power supply and the battery pack is shown when the backup power supply and the battery pack do not have a neutral line. Figure 4As shown, the "+" pole and "-" pole of the backup power supply and the battery pack are connected to the LHV+ and LHN of the DC bus respectively, and the LHV- is not connected at this time. In this connection mode, the HV+ end of the first DC acquisition module 111 is connected to the LHV+ of the DC bus through the first fuse device F1, and the HV- end of the first DC acquisition module 111 is connected in series with the HV+ end of the second DC acquisition module 112 to form a neutral point HVN, and is connected to LHN, while the HV- end of the second DC acquisition module 112 is suspended; the first current sensor device U4 is connected to the I+ and I- ends of the first DC acquisition module 111 to collect the positive half-cycle current of the DC bus, and the I+ and I- ends of the second DC acquisition module 112 have no valid collection data due to the incomplete connection of the line; after the first DC acquisition module 111 collects the first voltage and the first current, the first digital isolation module 117 The data is transmitted to the control module 12, and the control module 12 detects that only the first voltage data and the first current data are collected by the first DC acquisition module 111, thereby adapting to the data collection and monitoring mode without a neutral line; in the data collection and monitoring mode without a neutral line, the control module 12 processes the first voltage and the first current only from the first DC acquisition module 111, and ignores the data collected by the second DC acquisition module 112; the control module 12 continuously monitors the data, and if any abnormal data is found, a fault alarm signal is issued in time to ensure the safe operation of the system.

[0033] like Figure 5 As shown, another connection diagram of the intelligent monitoring system 10, the backup power supply and the battery pack is shown when the backup power supply and the battery pack do not have a neutral line. Figure 5As shown, the "+" pole and "-" pole of the backup power supply and the battery pack are connected to the LHN and LHV- of the DC bus respectively. At this time, LHV+ is not connected. In this connection mode, the HV- end of the second DC acquisition module 112 is fused and connected to the LHV- of the backup power supply and the battery pack DC bus through the third fuse device F3. The HV+ end of the second DC acquisition module 112 is connected in series with the HV- end of the first DC acquisition module 111 to form a neutral point HVN and connected to LHN, while the HV+ end of the first DC acquisition module 111 is suspended. The second current sensor device U10 is connected to the I+ and I- ends of the second DC acquisition module 112 to collect the negative half-cycle current of the DC bus. The I+ and I- ends of the first DC acquisition module 111 have no valid data collection due to the incomplete connection of the line; after the second DC acquisition module 112 collects the second voltage and the second current, it is connected to the second digital isolation module 118. The data is transmitted to the control module 12, and the control module 12 detects that only the second voltage data and the second current data are collected by the second DC acquisition module 112, thereby adapting 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, and if any abnormal data is found, a fault alarm signal is issued in time to ensure the safe operation of the system.

[0034] Reference Figure 6 , Figure 6 The flowchart of an intelligent monitoring method provided by one embodiment of the present invention is shown in FIG. 1 , and the intelligent monitoring method is applied to the control module in the above-mentioned intelligent monitoring system. The specific implementation steps of the intelligent monitoring method of the present invention are further described in detail below using the method. Figure 6 As shown, the method includes steps S110-S140: S110, receiving first DC data and / or second DC data collected by a 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; S120, 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 according to the first processed voltage and / or the second processed voltage to obtain a voltage fluctuation detection result; S130, 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 according to preset rated parameters, the first processed current and / or the second processed current; S140, generating real-time monitoring data and early warning information according to a preset fault threshold, the voltage fluctuation detection result, and the charge and discharge information.

[0035] 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, 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; 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 is performed according to the first processed voltage and the second processed voltage to obtain a voltage fluctuation detection result; 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 the preset rated parameters, the first processed current and the second processed current. It can be understood that 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 is performed according to the first processed voltage or the second processed voltage to obtain a voltage fluctuation detection result; 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 the preset rated parameters, the first processed current or the second processed current. Finally, the control module generates real-time monitoring data and early warning information according to the preset fault threshold, the voltage fluctuation detection result and the charging and discharging 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 and stability analysis, and the filtering process can remove noise interference; the voltage fluctuation detection according to the first processing voltage and / or the second processing voltage is to detect whether the first processing voltage and / or the second processing voltage fluctuates within the normal range; the first current and / or the second current are processed, and the specific processing can be integral operation; the charging and discharging information includes information such as the remaining power and the charging and discharging status, and the preset rated parameters are the rated parameters of the battery pack; the control module generates real-time monitoring data and early warning information according to the preset fault threshold, the voltage fluctuation detection result and the charging and discharging information, and once the data is found to be abnormal, the corresponding fault alarm signal is immediately triggered to prompt the user to check and maintain the system.

[0036] In summary, the intelligent monitoring system and method provided by the present invention, wherein the intelligent monitoring system is connected in series through the first DC acquisition module and the second DC acquisition module, and the control module is connected to the first DC data acquisition module and the second DC acquisition module through the first digital isolation module and the second digital isolation module, and the first DC acquisition module is used to collect the first DC data, and the second DC acquisition module is used to collect the second DC data. 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 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 first DC data or the second DC data, thereby realizing the monitoring of backup power battery packs with and without neutral lines, which not only improves the flexibility and compatibility of the monitoring system, but also reduces the deployment and maintenance costs. The intelligent monitoring system and method provided by the present invention can be widely used in various backup power battery pack monitoring scenarios to meet the diverse needs of different users. The intelligent monitoring system disclosed in the present invention solves the problem that the existing monitoring method cannot monitor the backup power battery pack with a neutral line and the problem that the monitoring of the backup power battery pack without a neutral line is not comprehensive enough.

[0037] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on 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; Among them, 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.

2. The intelligent monitoring system according to claim 1, characterized in that: 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.

3. The intelligent monitoring system according to claim 2, characterized in that: 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 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 sensing device on the positive pole of the DC bus to acquire the forward current to obtain the first current.

4. The intelligent monitoring system according to claim 2, characterized in that: 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 the I- terminal of the second DC acquisition module are respectively connected to the positive line and the 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.

5. The intelligent monitoring system according to claim 2, 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.

6. The intelligent monitoring system according to claim 5, 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.

7. The intelligent monitoring system according to claim 6, 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.

8. The intelligent monitoring system according to claim 5, 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.

9. The intelligent monitoring system according to claim 8, 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.

10. An intelligent monitoring method, applied to a control module in an intelligent monitoring system according to any one of claims 1 to 9, 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; 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 according to 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 charging and discharging information according to preset rated parameters, the first processed current and / or the second processed current; 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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