Broadband carrier wave-based transformer area power failure monitoring method and system

Abstract

The invention discloses a zone area power failure monitoring method and system based on broadband carrier waves, and aims to ensure efficient connection between equipment and improve data transmission speed and stability by adopting a broadband carrier wave communication technology and accurately configuring parameters of an intelligent gateway, a concentrator and a carrier wave module. The intelligent gateway periodically monitors the concentrator, sets a reasonable commercial power loss detection period and maximum delay time, and timely responds to the state change of the commercial power. Through periodic commercial power state detection, the concentrator collects and processes commercial power waveform data in real time, and provides data support for commercial power loss judgment. The system accurately judges and immediately reports the loss of the mains supply, and configures an alarm notification mode to ensure that operators know timely. And after confirming that the commercial power is lost or recovered, the intelligent gateway continuously reports related information for three times, so that the reliability and redundancy of the information are enhanced. And when the commercial power is recovered, the concentrator immediately detects and informs the intelligent gateway, and the intelligent gateway continuously reports recovery information, so that an operator can accurately know the state change of the commercial power, and powerful support is provided for power dispatching and operation and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of power system monitoring, and in particular to a method and system for monitoring power outages in a substation based on a broadband carrier. Background Art

[0002] The existing substation topology usually adds a distribution gateway on the substation side, and realizes transparent monitoring of low-voltage substations by replacing the carrier modules of the concentrator and meter. However, this structure is insufficient in detecting and reporting when the mains is lost or restored, especially when the upper power supply loses voltage, such as the tripping of the medium-voltage line, causing the substation to lose power, and the user's power outage cannot be reported in time. The existing technology is difficult to provide an effective solution.

[0003] Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a method and system for monitoring power outages in substations based on broadband carriers, which aims to achieve more accurate and timely detection of the power status of the substation by adding a heartbeat monitoring mechanism of the concentrator to the smart gateway.

[0005] A first aspect of an embodiment of the present invention discloses a method for monitoring power outages in a substation based on a broadband carrier, comprising the following steps:

[0006] S1: Initialize system and device configuration, including configuring parameters of smart gateway, concentrator and carrier module, ensuring normal connection between devices through broadband carrier communication; setting mains power loss detection cycle and maximum delay time; among them, the smart gateway has a built-in head-end module, and realizes networking communication by adding the head-end module MAC whitelist on the concentrator module CCO;

[0007] S2: Periodic mains power status detection. The intelligent gateway sends a query command to the concentrator through the head-end module at a set detection period as the time interval, requesting the latest mains power waveform data, which includes voltage, current, and frequency. After receiving the query command, the concentrator collects the mains power waveform data in real time and calculates key parameters.

[0008] S3: Mains power loss judgment and reporting. If the concentrator does not receive valid mains power waveform data or the data is abnormal within the set detection period, it is judged as suspected mains power loss; if the suspected mains power loss state continues to exceed the set maximum delay time, the mains power loss is confirmed and the power outage event information is reported to the smart gateway; after receiving the power outage event information, the smart gateway reports it multiple times at a certain interval to ensure the reliability and redundancy of the information;

[0009] S4: Mains power recovery detection and reporting. Once the mains power is restored, the concentrator detects normal mains power waveform data and notifies the smart gateway. After the smart gateway confirms that the mains power has been restored, it reports the recovery information and reports it multiple times at certain intervals to ensure that the mains power status changes are known in a timely manner.

[0010] Preferably, step S1 further includes configuring an alarm notification method to send the city power status change information to the operator.

[0011] Preferably, the step of monitoring the link status is also included: real-time monitoring of the link status between the intelligent gateway and the concentrator. If there is a problem with the link, the intelligent gateway immediately reports the suspected power outage event information and notifies the operating personnel through the configured alarm notification method.

[0012] Preferably, the mains power loss detection period in step S1 is set to 1 minute, and the maximum delay time is set to 2 minutes.

[0013] Preferably, the alarm notification method includes SMS notification.

[0014] Preferably, in step S3, after receiving the power outage event information, the intelligent gateway reports it three times in succession at an interval of 1 minute;

[0015] In step S4, after the intelligent gateway confirms that the mains power is restored, it reports the restoration information within one minute and reports it three times in succession at intervals of one minute.

[0016] A second aspect of an embodiment of the present invention discloses a broadband carrier-based area power outage monitoring system, which adopts the area power outage monitoring method described in the first aspect, and includes:

[0017] A broadband carrier-based power outage monitoring system for a substation, characterized by adopting the broadband carrier-based power outage monitoring method for a substation described in the first aspect, comprising:

[0018] Initialization module 1 is used to configure the parameters of the smart gateway, concentrator and carrier module, set the mains loss detection cycle and maximum delay time, and realize the networking communication between the smart gateway and the concentrator;

[0019] The mains status detection module 2 is used to control the intelligent gateway to periodically send query instructions to the concentrator to request the latest mains waveform data, and receive the mains waveform data returned by the concentrator;

[0020] The mains power loss judgment and reporting module 3 is used to judge the mains power loss situation and report the power outage event information to the intelligent gateway after confirming the mains power loss;

[0021] The mains power recovery detection and reporting module 4 is used to report the recovery information through the intelligent gateway after detecting that the mains power is restored.

[0022] Preferably, it also includes:

[0023] The alarm notification configuration module 5 is used to configure the alarm notification mode to send the mains power status change information to the operator;

[0024] The link status monitoring module 6 is used to monitor the link status between the intelligent gateway and the concentrator in real time, and when a problem occurs in the link, control the intelligent gateway to immediately report the suspected power outage event information and notify the operator through the alarm notification configuration module 5.

[0025] Preferably, the head-end module on the intelligent gateway has a supercapacitor and can operate normally within at least 30 seconds after the external power supply is lost.

[0026] Preferably, the head-end module is connected to the AC 220V zero and live wires of the mains electricity, and a carrier communication PLC signal is sent through the zero and live wires;

[0027] The head-end module is provided with a conversion circuit for converting AC 220V into the voltage A required by the system, and a zero-crossing detection circuit for detecting the zero-crossing of the 50Hz AC mains;

[0028] When it is found that the difference between the converted voltage value and the A voltage value exceeds the limited range or the signal of the 50Hz AC mains power cycle passing through zero is not received, it can be judged that the mains power is abnormal or the mains power is lost, and the power outage event information reporting operation is executed at this time; when it is found that the difference between the converted voltage value and the A voltage value is within the limited range and the signal of the 50Hz AC mains power cycle passing through zero is received, it can be judged that the mains power is normal, and the mains power supply restoration operation is executed at this time.

[0029] A third aspect of an embodiment of the present invention discloses a computer device, comprising: a memory 100, a processor 200, and executable instructions stored in the memory and executable in the processor, wherein the processor implements the method described in the first aspect when executing the executable instructions.

[0030] A fourth aspect of an embodiment of the present invention discloses a computer-readable storage medium having computer-executable instructions stored thereon, wherein the executable instructions, when executed by a processor, implement the method described in the first aspect.

[0031] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0032] 1. The broadband carrier-based power outage monitoring method described in this case realizes comprehensive and real-time monitoring of the mains status through a series of carefully designed steps and components working together, significantly improving the reliability and stability of the power system. First, in step S1, by accurately configuring the parameters of the intelligent gateway, concentrator and carrier module, it is ensured that the devices can be connected normally and efficiently through broadband carrier communication. This setting not only improves the speed and stability of data transmission, but also provides a solid foundation for subsequent mains status monitoring.

[0033] Secondly, through the periodic mains power status detection in step S2, the waveform data of the mains power can be obtained in real time, including key information such as voltage, current and frequency. In addition, in this step, this case sets a reasonable mains power loss detection cycle of 1 minute and a maximum delay time of 2 minutes, which can not only respond to changes in the mains power status in a timely manner, but also cope with occasional data transmission delays, thereby improving the flexibility and response speed of the system. In step S3, this case uses the concentrator to collect and process the mains power waveform data in real time, calculate key parameters such as zero-crossing signals, etc., and provide strong data support for subsequent mains power loss judgment. By setting reasonable judgment logic and thresholds, the system can accurately judge whether the mains power is lost, and immediately report the power outage event information after confirming the loss of the mains power. This setting achieves a quick response and helps to reduce the losses and impacts caused by the loss of the mains power. In addition, this case is also configured with an alarm notification method to ensure that the operating personnel can be informed of the changes in the mains power status in a timely manner. After confirming that the mains power is lost or restored, the intelligent gateway will report the relevant information three times in a row at an interval of 1 minute. This repeated reporting mechanism avoids information loss or omission and further improves the reliability of the system. Finally, in step S4, once the mains power is restored, the concentrator can immediately detect the normal mains power waveform data and notify the intelligent gateway. After confirming that the mains power is restored, the intelligent gateway will also continuously report the restoration information at the set time interval to ensure that the operator can accurately understand the latest changes in the mains power status, so as to take timely measures to restore normal power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a flowchart of the first embodiment of the present invention.

[0036] Figure 2 It is a structural diagram of the application of the first embodiment of the present invention in an actual scenario.

[0037] Figure 3 It is a structural block diagram of the second embodiment of the present invention.

[0038] Figure 4 It is a structural diagram of embodiment 3 of the present invention. DETAILED DESCRIPTION

[0039] 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 only 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.

[0040] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention are used to distinguish different objects rather than to describe a specific order. The terms "including" and "having" in the embodiments of the present invention and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0041] The embodiments of the present invention disclose a method, device, equipment and computer-readable storage medium for monitoring power outages in a substation based on a broadband carrier, which can simplify the construction process of identification and improve identification efficiency, and is conducive to accurate tuning of the identification method in the later stage.

[0042] Embodiment 1

[0043] like Figure 1 and Figure 2 As shown, a method for monitoring power outages in a substation based on a broadband carrier is characterized by comprising the following steps:

[0044] S1: Initialize system and device configuration, including configuring parameters of smart gateway, concentrator and carrier module to ensure normal connection between devices through broadband carrier communication; set the mains loss detection cycle and maximum delay time; wherein, the smart gateway has a built-in head-end module, and realizes networking communication by adding the head-end module MAC whitelist to the concentrator module CCO; the head-end module is a carrier STA module built into the smart gateway. The concentrator module CCO is a communication module designed based on a power line high-speed carrier chip, which is used to realize the collection and transmission of electricity consumption information in smart grids. Specifically, the mains loss detection cycle is set to 1 minute, and the maximum delay time is set to 2 minutes to cope with occasional data transmission delays.

[0045] S2: Periodic mains power status detection. The intelligent gateway sends a query command to the concentrator through the head-end module at a set detection period as the time interval, requesting the latest mains power waveform data, which includes voltage, current, and frequency. After receiving the query command, the concentrator collects the mains power waveform data in real time and calculates key parameters.

[0046] S3: Mains power loss judgment and reporting. If the concentrator does not receive valid mains power waveform data or the data is abnormal within 1 minute within the set detection cycle, it is judged as suspected mains power loss; if the suspected mains power loss state continues to exceed the set maximum delay time, the mains power loss is confirmed and the power outage event information is reported to the smart gateway; after receiving the power outage event information, the smart gateway reports it three times at an interval of 1 minute to ensure the reliability and redundancy of the information;

[0047] S4: Mains power recovery detection and reporting. Once the mains power is restored, the concentrator detects normal mains power waveform data and notifies the smart gateway. After the smart gateway confirms that the mains power has been restored, it reports the recovery information three times at an interval of 1 minute to ensure that the mains power status changes are known in a timely manner.

[0048] Step S1 also includes configuring an alarm notification method to send the city power status change information to the operator.

[0049] In specific implementation, the intelligent gateway, concentrator and carrier module work together to achieve comprehensive coverage and real-time monitoring of the city power status. The concentrator is responsible for aggregating data from multiple intelligent gateways and conducting comprehensive analysis and judgment; the carrier module is responsible for reliable data transmission.

[0050] As described above, the broadband carrier-based power outage monitoring method described in this case realizes comprehensive and real-time monitoring of the mains status through a series of carefully designed steps and components working together, and significantly improves the reliability and stability of the power system. First, in step S1, by accurately configuring the parameters of the intelligent gateway, concentrator and carrier module, it is ensured that the devices can be connected normally and efficiently through broadband carrier communication. This setting not only improves the speed and stability of data transmission, but also provides a solid foundation for subsequent mains status monitoring. Secondly, through the periodic mains status detection in step S2, the waveform data of the mains can be obtained in real time, including key information such as voltage, current and frequency. In addition, in this step, this case sets a reasonable mains loss detection cycle of 1 minute and a maximum delay time of 2 minutes, which can not only respond to changes in the mains status in a timely manner, but also cope with occasional data transmission delays, thereby improving the flexibility and response speed of the system. In step S3, this case uses the concentrator to collect and process the mains waveform data in real time, calculate key parameters such as zero-crossing signals, etc., and provide strong data support for subsequent mains loss judgment. By setting reasonable judgment logic and thresholds, the system can accurately determine whether the mains power is lost, and immediately report the power outage event information after confirming the loss of the mains power. This setting achieves a quick response and helps reduce the losses and impacts caused by the loss of the mains power. In addition, this case also configures an alarm notification method to ensure that the operating personnel can be informed of changes in the mains power status in a timely manner. After confirming that the mains power is lost or restored, the intelligent gateway will report relevant information three times in a row at an interval of 1 minute. This repeated reporting mechanism avoids information loss or omission and further improves the reliability of the system. Finally, in step S4, once the mains power is restored, the concentrator can immediately detect normal mains power waveform data and notify the intelligent gateway. After confirming that the mains power is restored, the intelligent gateway will also continuously report recovery information at the set time interval to ensure that the operating personnel can accurately understand the latest changes in the mains power status, so as to take timely measures to restore normal power supply.

[0051] As a preferred implementation method, the method further includes the step of monitoring the link status:

[0052] Real-time monitoring of the link status between the smart gateway and the concentrator. If there is a problem with the link, the smart gateway will immediately report the suspected power outage event information and notify the operator through the configured alarm notification method. In this way, the real-time monitoring function of the link status between the smart gateway and the concentrator is added to the head-end monitoring. If there is a problem with the link, the smart gateway will immediately report the suspected power outage event information and notify the operator through SMS to ensure that the fault information can be transmitted in time.

[0053] Embodiment 2

[0054] like Figure 3As shown, a broadband carrier-based power outage monitoring system for a substation area adopts the broadband carrier-based power outage monitoring method for a substation area described in Example 1, including:

[0055] Initialization module 1 is used to configure the parameters of the intelligent gateway, concentrator and carrier module; and to set the mains loss detection cycle and maximum delay time, and realize the networking communication between the intelligent gateway and the concentrator;

[0056] The mains status detection module 2 is used to control the intelligent gateway to periodically send query instructions to the concentrator to request the latest mains waveform data; and after the concentrator receives the query instruction, it is used to collect the mains waveform data in real time and calculate the key parameters to be detected;

[0057] The mains power loss judgment and reporting module 3 is used to judge that the mains power is suspected to be lost when the concentrator does not receive valid mains power waveform data or the data is abnormal within the set detection period; and to judge that the mains power is confirmed to be lost when the suspected mains power loss state continues to exceed the set maximum delay time, and report the power outage event information to the intelligent gateway;

[0058] The mains power recovery detection and reporting module 4 is used to notify the intelligent gateway when normal mains power waveform data is detected through the concentrator; and to report the recovery information after the intelligent gateway confirms that the mains power has been restored.

[0059] As described above, the system of this case can accurately configure the parameters of the intelligent gateway, concentrator and carrier module through the setting of the initialization module 1, ensuring the smooth communication between devices and the accurate transmission of data. Through the setting of the mains status detection module 2, the intelligent gateway periodically sends query instructions to the concentrator, ensuring the real-time acquisition of the mains waveform data, and providing timely data support for the subsequent mains loss judgment. Through the setting of the mains loss judgment and reporting module 3, it can quickly determine the suspected mains loss, and after the suspected state continues to exceed the set maximum delay time, confirm the mains loss and report the power outage event information, which improves the response speed and accuracy of the system; and after confirming the mains loss, the system can continuously report the power outage event information, ensuring the redundancy and reliability of the information, and avoiding the loss of information caused by a single reporting failure. Through the setting of the mains recovery detection and reporting module 4, when the concentrator detects normal mains waveform data, it can immediately notify the intelligent gateway, ensuring the timely transmission of the mains recovery information, and at the same time ensuring that the operating personnel can accurately understand the latest changes in the mains status, providing strong support for subsequent power dispatching and operation and maintenance.

[0060] As a preferred embodiment, it also includes:

[0061] The alarm notification configuration module 5 is used to configure the alarm notification mode to send the mains power status change information to the operator;

[0062] The link status monitoring module 6 is used to monitor the link status between the intelligent gateway and the concentrator in real time, and when a problem occurs in the link, control the intelligent gateway to immediately report the suspected power outage event information, and notify the operator through the alarm notification configuration module 5. In this way, the introduction of the alarm notification configuration module 5 and the link status monitoring module 6 not only improves the information transmission efficiency and emergency response speed of the broadband carrier-based power outage monitoring system, but also enhances the reliability and stability of the system and reduces the operation and maintenance costs.

[0063] As a preferred embodiment, the head-end module on the intelligent gateway has a supercapacitor, which can operate normally within at least 30 seconds after the external power supply is lost. In this way, in the event of a sudden interruption of the mains power, the supercapacitor can provide short-term power support for the head-end module, ensuring that it continues to operate normally for a period of time, helping the head-end module to complete the current data transmission task, or promptly send out an alarm message to notify other parts of the system that the mains power has been lost, thereby enhancing the reliability of the entire monitoring system.

[0064] As a preferred implementation, the head-end module is connected to the AC 220V neutral and live wires of the mains electricity, and a carrier communication PLC signal is sent through the neutral and live wires;

[0065] The head-end module is provided with a conversion circuit for converting AC 220V into 12V, and a zero-crossing detection circuit for detecting the zero-crossing of 50Hz AC mains power; the conversion circuit is a common AC to DC conversion circuit, and the zero-crossing detection circuit is the position where the waveform of AC power crosses zero from positive to negative or from negative to positive at a frequency of 50 Hz.

[0066] When it is found that the difference between the converted voltage value and 12V is beyond the limited range or the signal of the 50Hz AC mains power cycle passing through zero is not received, it can be judged that the mains power is abnormal or lost, and the power outage event information reporting operation is performed at this time; when it is found that the difference between the converted voltage value and 12V is within the limited range and the signal of the 50Hz AC mains power cycle passing through zero is received, it can be judged that the mains power is normal, and the mains power supply restoration operation is performed at this time.

[0067] As mentioned above, by real-time monitoring of the converted voltage value and the periodic zero-crossing signal of the 50Hz AC mains, the head-end module can accurately determine the mains status and avoid losses caused by false alarms or missed alarms. The head-end module is directly connected to the mains and uses the power line as a communication medium, which reduces the impact of external interference and line failures on the system and improves the stability and reliability of the system. By accurately determining the mains status, the head-end module can reduce unnecessary maintenance and replacement requirements and reduce the maintenance cost of the system. When the mains status changes, the head-end module can respond quickly and report relevant information to ensure that relevant personnel can take timely measures, thereby improving user satisfaction and experience.

[0068] Embodiment 3

[0069] like Figure 4 As shown, a computer device includes: a memory 100, a processor 200 and executable instructions stored in the memory and executable in the processor, characterized in that the processor implements the method described in Example 1 when executing the executable instructions.

[0070] Embodiment 4

[0071] A computer-readable storage medium stores computer-executable instructions, wherein the executable instructions, when executed by a processor, implement the method described in Embodiment 1.

[0072] In summary, the present invention significantly improves the efficiency, accuracy and adaptability of power grid planning through intelligent and automated means, optimizes the overall layout and operation effect of the power grid, and provides strong technical support for the construction and transformation of the power grid.

[0073] The above is a detailed introduction to a method and system for monitoring power outages in substations based on broadband carrier disclosed in an embodiment of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for monitoring power outages in a substation area based on broadband carrier, characterized in that: The following steps are involved: S1: Initialize system and device configuration, including configuring parameters of smart gateway, concentrator and carrier module, ensuring normal connection between devices through broadband carrier communication; setting mains power loss detection cycle and maximum delay time; among them, the smart gateway has a built-in head-end module, and realizes networking communication by adding the head-end module MAC whitelist on the concentrator module CCO; S2: Periodic mains power status detection. The intelligent gateway sends a query command to the concentrator through the head-end module at a set detection period as the time interval, requesting the latest mains power waveform data, which includes voltage, current, and frequency. After receiving the query command, the concentrator collects the mains power waveform data in real time and calculates key parameters. S3: Mains power loss judgment and reporting. If the concentrator does not receive valid mains power waveform data or the data is abnormal within the set detection period, it is judged as suspected mains power loss; if the suspected mains power loss state continues to exceed the set maximum delay time, the mains power loss is confirmed and the power outage event information is reported to the smart gateway; after receiving the power outage event information, the smart gateway reports it multiple times at a certain interval to ensure the reliability and redundancy of the information; S4: Mains power recovery detection and reporting. Once the mains power is restored, the concentrator detects normal mains power waveform data and notifies the smart gateway. After the smart gateway confirms that the mains power has been restored, it reports the recovery information and reports it multiple times at certain intervals to ensure that the mains power status changes are known in a timely manner.

2. The method for monitoring power outages in a substation area based on broadband carrier according to claim 1, characterized in that: Step S1 also includes configuring an alarm notification method to send the city power status change information to the operator.

3. The method for monitoring power outages in a substation area based on broadband carrier according to claim 2, characterized in that: It also includes the step of monitoring the link status: real-time monitoring of the link status between the smart gateway and the concentrator. If there is a problem with the link, the smart gateway immediately reports the suspected power outage event information and notifies the operator through the configured alarm notification method.

4. The method for monitoring power outages in a substation area based on broadband carrier according to claim 1, characterized in that: In step S1, the mains power loss detection period is set to 1 minute, and the maximum delay time is set to 2 minutes.

5. The method for monitoring power outages in a substation area based on broadband carrier according to claim 2, characterized in that: The alarm notification method includes SMS notification.

6. The method for monitoring power outages in a substation area based on broadband carrier according to claim 1, characterized in that: In step S3, after receiving the power outage event information, the smart gateway reports it three times in succession at an interval of 1 minute; In step S4, after the intelligent gateway confirms that the mains power is restored, it reports the restoration information within one minute and reports it three times in succession at intervals of one minute.

7. A broadband carrier-based power outage monitoring system, characterized in that: The method for monitoring power outages in a substation area based on a broadband carrier according to any one of claims 1 to 6 comprises: An initialization module (1) is used to configure the parameters of the intelligent gateway, the concentrator and the carrier module, set the mains power loss detection cycle and the maximum delay time, and realize the networking communication between the intelligent gateway and the concentrator; A mains power status detection module (2), used to control the intelligent gateway to periodically send query instructions to the concentrator to request the latest mains power waveform data, and receive the mains power waveform data returned by the concentrator; A mains power loss judgment and reporting module (3), used to judge the mains power loss situation and report the power outage event information to the intelligent gateway after confirming the mains power loss; The mains power recovery detection and reporting module (4) is used to report the recovery information through the intelligent gateway after detecting that the mains power is recovered.

8. The broadband carrier-based power outage monitoring system according to claim 7 is characterized in that: Also includes: An alarm notification configuration module (5) is used to configure an alarm notification method to send the city power status change information to the operator; The link status monitoring module (6) is used to monitor the link status between the intelligent gateway and the concentrator in real time, and when a problem occurs in the link, control the intelligent gateway to immediately report suspected power outage event information and notify the operating personnel through the alarm notification configuration module (5).

9. The broadband carrier-based power outage monitoring system according to claim 8, characterized in that: The headend module on the smart gateway has a supercapacitor that allows it to operate normally for at least 30 seconds if the external power supply is lost.

10. According to the broadband carrier-based power outage monitoring system of claim 9, the head-end module is connected to the AC 220V zero and live wires of the city power supply, and the carrier communication PLC signal is sent through the zero and live wires; The head-end module is provided with a conversion circuit for converting AC 220V into the voltage A required by the system, and a zero-crossing detection circuit for detecting the zero-crossing of the 50Hz AC mains; When it is found that the difference between the converted voltage value and the A voltage value exceeds the limited range or the signal of the 50Hz AC mains power cycle passing through zero is not received, it can be judged that the mains power is abnormal or the mains power is lost, and the power outage event information reporting operation is executed at this time; when it is found that the difference between the converted voltage value and the A voltage value is within the limited range and the signal of the 50Hz AC mains power cycle passing through zero is received, it can be judged that the mains power is normal, and the mains power supply restoration operation is executed at this time.

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