WO2007041967A1

WO2007041967A1 - An access device and a management system and method thereof

Info

Publication number: WO2007041967A1
Application number: PCT/CN2006/002696
Authority: WO
Inventors: Kun Li; Guojie Pan; Hai Yang; Tinghai Lv; Zhigang Fu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-10-14
Filing date: 2006-10-13
Publication date: 2007-04-19
Also published as: CN100474817C; CN1949716A

Abstract

An access device and a management system and method thereof, the system includes a device power supply state information report module set in the access device and connected with the electrical source of the access device for monitoring the power supply state of the access device. When the module monitors the power supply changed, it constructs a corresponding device power supply state information and reports it to the device state management module. The device state management module is set in the network management for managing the state of the access device based on the said device power supply state information. By using the said system and method of the invention, when the communication information is interrupted between the network management and the optical edge access device, the network management can exactly judge that the interrupt is caused by which the optical edge access device/optical fiber is destructed or power of the optical edge access device is cut off, thus it can greatly reduce the workload and cost of the operation, management and maintenance in the optical transmission network.

Description

Access device management system, method and access device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a management system, method, and access device for an access device. Background of the invention

There are many types of optical edge access devices, including but not limited to SDH (Synchronous Digital Hierarchy), PDH (Plesiochronous Digital Hierarchy), PON (Passive Optical Network), ONU. (Optical Network Unit), ESR (Edge Services Router), where the passive optical network includes EPON (Ethernet Passive Optical Network), BPON (Broadband Passive Optical Network) Passive Optical Network, GEPON (Gigabit Ethernet Passive Optical Network), GPON (Genetic Framing Procedure), Passive Optical Network (GFP), APON (APON) ATM (Asynchronous Transfer Mode) Passive Optical Network, Asynchronous Transfer Mode Passive Optical Network, etc.

In the optical transmission system, the NMS performs the functions of real-time provisioning, alarm fault location, and performance online testing of the device by sending commands to the device and querying related data of the device. The network management and the device are usually close to each other. The Ethernet network cable or the serial communication cable is connected. The channel for managing information and data transmission between the optical edge access devices generally uses the same physical fiber channel as the service transmission, and the specific implementation process of establishing the transmission management information and the data channel is based on the optical edge. There are different ways to handle different types of access devices. For example, in an SDH optical edge access device, a channel for transmitting management information and data is established by a portion of the overhead bytes in the regenerator section and/or the multiplex section. The data here is for the business, such as the telephone voice provided to the user.

It can be seen from the above-mentioned optical transmission system management information and data transmission method that when the optical edge access device is damaged, the optical fiber is damaged, or the optical edge access device is powered off (including the device itself is powered off and the external power failure causes the device to be powered off), The network management information is interrupted from the network management level. For example, if the optical edge access device B shown in FIG. 1 is powered off, the optical edge access device A will report to the network management device that there is no signal alarm on the port connected to the device B, and the network management device will display the device B or the device B to the emergency. The fiber between devices A is damaged.

Since the optical edge access device has a wide geographical distribution, generally in the range of tens to hundreds of kilometers, the number is large, and when communication information is interrupted, it generally has a large impact. Therefore, the optical edge access device is required to have high reliability. And when the communication information is interrupted, it needs to be handled as an emergency in time. If the reason for the interruption of the communication information is confirmed by manual inquiry, the workload will be large and time-consuming, which will greatly increase the network operation, Management and maintenance At the same time, it may also cause problems that need to be dealt with in a timely manner to be resolved, which will affect customer satisfaction. Summary of the invention

In view of the above problems in the prior art, the object of the present invention is to provide a management system and method for an access device. When communication information between the network management device and the optical edge access device is interrupted, the network management system can correctly determine the optical edge. The access device/fiber damage is caused by the power outage of the optical edge access device, which greatly reduces the workload and cost of the operation, management and maintenance of the optical transmission network.

The object of the present invention is achieved by the following technical solutions. The present invention provides a management system for an access device, including:

The device power state information reporting module is configured in the access device and connected to the power of the access device to monitor the power state of the access device. When the power state changes, the corresponding device power state information is constructed and reported. Give the device status management module;

The device status management module is configured in the network management system to perform state management on the access device according to the received power supply status information of the device.

The technical solution of the following system is an optional technical solution.

The device power state information reporting module includes: a power outage information reporting submodule, and the device state management module includes: a power outage state management submodule;

The power failure information reporting sub-module is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct the power failure information and report the power failure status to the power failure state management device when the access device is detected to be powered off. The module; the power failure state management submodule, configured to record the access device as a power outage state according to the received power outage information. The power failure information reporting sub-module includes: a power failure monitoring unit and a power failure information reporting unit;

The power failure monitoring unit is disposed in the power supply part of the access device, and is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to generate a power failure signal when the access device is detected to be powered off, and The power failure signal is transmitted to the power failure information reporting unit;

The power outage information reporting unit is configured in the access device service processing control part, configured to construct the power outage information according to the received power failure signal, and report the power outage information to the power outage state management submodule.

The power failure monitoring unit specifically includes: a power failure monitoring subunit and an energy storage subunit;

The power failure monitoring subunit is respectively connected to the input power of the access device, and/or the internal power of the device in the access device, and the energy storage subunit, and is configured to generate a power failure signal when the access device is detected to be powered off, and The power failure signal is transmitted to the power failure information reporting unit; The energy storage subunit is connected to the input power of the access device and/or the internal power of the device in the access device, and is used for storing electrical energy, and reporting the power failure monitoring subunit and the power outage information when the access device is powered off. Unit power supply.

The power failure monitoring unit further includes: an isolation subunit, disposed between the power failure monitoring subunit and the energy storage subunit, and connected to an input power of the access device and/or an internal power supply of the device in the access device. It is used to prevent the energy storage subunit from discharging to the outside when the access device is powered off.

The power failure monitoring unit is composed of a time delay power switch.

The device power state information reporting module includes: a power-on information reporting sub-module, and the device state management module includes: a power-on state management sub-module;

The power-on information reporting sub-module is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct the power-on information and report the power-on status management sub-module when the access device is detected to be powered on. ;

The power-on state management sub-module is configured to record the access device as a power-on state according to the received power-on information. The system further includes: a fault state management module, configured in the network management, and connected to the device state management module, configured to be configured according to the alarm related to the connection port of the access device and the device state management module The stored power outage information of the access device records the access device as a non-faulty state.

The present invention also provides a method for managing an access device, including the following steps:

When the access device detects that its own power supply status changes, it reports the device power status information to the NMS. The NMS performs state management on the access device according to the device power status information reported by the access device.

The technical solution of the following method is an optional technical solution.

The method includes:

When the access device is powered off, report the power failure to the network management device;

The NMS records the access device as a power failure state according to the power failure information reported by the access device.

The step of reporting the power outage information specifically includes: generating a power outage signal when the access device is powered off; the access device constructs the power outage information according to the power outage signal; and the access device reports the power outage information to the network management. ,

The power outage information includes: a power outage identifier and device code information.

The method includes: when the access device is powered on, reporting the power-on information to the network management;

The NMS records the access device as powered on according to the power-on information reported by the access device.

The method further includes: the network management device records the access device as a non-fault state according to the alarm that is received by the access device and the power failure information of the access device. The invention also provides an access device, wherein the access device is provided with a device power state information reporting module, and the device power state information reporting module is connected to the power of the access device, and is used for monitoring the power state of the access device. When the power supply status is changed, the device power status information reporting module constructs the corresponding device power supply status information and reports the information. ·

The technical solution of the following access device is an optional technical solution.

The device power status information reporting module includes: a power outage information reporting submodule and/or a powering information reporting submodule;

The power failure information reporting sub-module is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct a power failure information and report the power when the access device is powered off;

The power-on information reporting sub-module is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct the power-on information and report the power when the access device is detected to be powered on.

The power failure information reporting sub-module includes: a power failure monitoring unit and a power failure information reporting unit;

The power failure information reporting unit is disposed in the access device service processing control part, and configured to construct the power outage information according to the received power failure signal, and report the power outage information.

The power failure monitoring subunit is respectively connected to the input power of the access device, and/or the internal power of the device in the access device, and the energy storage subunit, and is configured to generate a power failure signal when the access device is detected to be powered off, and Transmitting a power failure signal to the power failure information reporting unit;

The energy storage subunit is connected to the input power of the access device and/or the internal power of the device in the access device, and is used for storing electrical energy, and reporting the power failure monitoring subunit and the power outage information when the access device is powered off. Unit power supply.

It can be seen from the above technical solution provided by the present invention that the system, method and access device according to the present invention have the following advantages:

1. When the communication information between the NMS and the optical edge access device is interrupted, the NMS can correctly determine whether the optical edge access device/fiber is damaged or the optical edge access device is powered off, thereby greatly reducing the optical transmission network operation and management. Management and maintenance workload and cost;

2. It can process optical edge access devices/fiber faults in time, which is conducive to improving service quality and increasing customer satisfaction, thus simplifying network management and improving service levels. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a network model diagram in the prior art;

2 is a schematic structural diagram of a device according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method according to an embodiment of the present invention. Mode for carrying out the invention

When the communication information between the network management device and the access device is interrupted, in order to facilitate the network management device to correctly determine whether the access device/fiber is faulty or the access device is powered off, the embodiment of the present invention provides an access device management system and Accessing the device, the following takes the optical edge access device as an example for detailed description.

As shown in FIG. 2, the system includes a device power status information reporting module and a device status management module.

The device power supply status information reporting module is configured in the optical edge access device, and is respectively connected to the internal power supply of the AC/DC input power source and the optical edge access device, and the operations performed by the device are: monitoring the optical edge access device AC/ The power supply status of the internal power supply of the device in the DC input power supply and the optical edge access device. When the AC power supply status of the internal power supply of the AC/DC input power supply or the optical edge access device is changed, the corresponding device power supply status information is constructed. And reported to the device status management module. The power supply status information reporting module of the device can also be connected to the AC/DC input power of the optical edge access device. In this way, when the external power supply of the optical edge access device changes, the device status management module is detected. Report the device power status information. The device power supply status information reporting module can also be connected to the internal power supply of the device in the optical edge access device. In this way, when the internal power supply of the device that detects the optical edge access device changes, the device status management is performed. The module reports the device power status information.

The device status management module is configured in the network management system, and the operation is performed according to the device power supply status information reported by the device power supply status information reporting unit, and then the power supply status of the optical edge access device is determined according to the power supply status of the optical edge access device. The optical edge access device performs working state management.

The power supply status information reporting module includes: a power outage information reporting sub-module, and the power failure information reporting sub-module is connected to the AC/DC input power of the optical edge access device and the internal power supply of the optical edge device, and the device state management module includes: State management submodule.

The operation performed by the power failure information reporting sub-module is as follows: When the optical edge access device is detected to be powered off, the configuration is stopped. The information is reported to the power outage management sub-module in the device status management module.

The operation of the power failure state management sub-module is: when the power failure information reported by the sub-module is reported, the optical edge access device is recorded as a power-off state. The operation performed by the power failure information reporting sub-module can be implemented by the power failure monitoring unit and the power failure information reporting unit.

The power failure monitoring unit is disposed in the power supply part of the optical edge access device, and is respectively connected to the AC/DC input power of the optical edge access device and the internal power supply of the device in the optical edge access device, and the operations performed are: when the optical edge is detected A power failure signal is generated when the input device is powered off, and the power failure signal is transmitted to the power failure information reporting unit.

The power failure information reporting unit is disposed in the service processing control part of the optical edge access device, and performs the operation of: constructing the power failure information according to the received power failure signal and reporting the power failure status to the power failure state management submodule. The power failure monitoring unit may be composed of a power failure monitoring subunit and an energy storage subunit.

The power failure monitoring subunit is connected to the AC/DC input power of the optical edge access device and the internal power of the device in the optical edge access device. The power failure monitoring sub-unit performs the following operations: When the optical edge access device is detected to be powered off, a power failure signal is generated, and the power failure signal is transmitted to the power failure information reporting unit.

The energy storage sub-units are respectively connected to the internal power supply of the AC/DC input power source and the optical edge access device, and the operations performed are: storing a certain amount of electric energy, and when the optical edge access device is powered off, the power failure monitoring subunit and the power failure The information reporting unit supplies power, so that the power failure monitoring subunit and the power failure information reporting unit can continue to work for a period of time, so as to ensure that the power failure monitoring subunit generates a power failure signal and transmits the power failure signal to the power failure information reporting unit, and the power failure information reporting unit is based on the power failure signal. The power failure information is constructed and reported to the power failure state management submodule. In the embodiment of the present invention, the energy storage subunit can supply power to the entire access device by using the internal power supply of the access device, so that the power failure monitoring subunit and the power failure information reporting unit can continue to work for a period of time after the access device is powered off; the energy storage subunit It is also possible to supply power to some units in the access device through the internal power supply of the access device, so that the power failure monitoring subunit and the power failure information reporting unit can continue to work for a period of time after the access device is powered off; the energy storage subunit can also be powered off only. The monitoring subunit and the power outage information reporting unit are connected, so that the power failure monitoring subunit and the power outage information reporting unit can continue to work for a period of time after the access device is powered off.

The energy storage subunit may be constituted by an energy storage device such as a capacitor.

The energy storage subunit provides the normal power supply time for the power failure monitoring subunit, the power failure information reporting unit, and the communication part of the equipment after the power failure of the equipment, and the information quantity of the reported power failure information and the selection of the reported power failure information transmission channel, in the present invention The management information and the data transmission channel between the optical edge access device and the network management device can be used as a transmission channel for reporting the power outage information.

For example, in the SDH system, if the length of the power outage information is 60 bytes (for ease of packaging into Ethernet) Packet), when using the overhead bytes of the regenerator section defined as the overhead bytes of the digital communication path byte for management information and data channels, it takes at least 2.5 milliseconds to transmit 60 bytes, plus the power outage information reporting unit of the optical edge access device. When the power failure information is reported, the energy storage subunit can continue to provide normal power supply for more than 10 milliseconds to the power failure monitoring subunit, the power failure information reporting unit, and the communication part after the power failure monitoring subunit monitors the equipment power failure. After the optical edge access device is powered off, in order to prevent the energy storage subunit from discharging to the outside, and ensuring that the power failure monitoring subunit and the power failure information reporting unit complete the necessary work, the power failure monitoring unit may further include an isolation subunit, and the isolation subunit is set in the power outage. The monitoring subunit and the energy storage subunit are directly connected to the AC/DC input power of the optical edge access device, and the power failure monitoring subunit also needs to be directly connected to the AC/DC input power of the optical edge access device.

The isolation subunit may be constituted by a switching device such as a diode and/or a triode and/or an auxiliary circuit.

Since the power failure signal can be generated by the contact with the power switch, for example, for the plurality of sets of contact power switches, when the optical edge access device is powered off, the power outage signal can be generated by directly or indirectly using some of the contacts, so The power failure monitoring subunit can be replaced by multiple sets of contact power switches.

In addition, the power failure monitoring unit can also be configured by a time-delayed power switch.

When the optical edge access device actively cuts off the power, multiple sets of contact power switches or delayed power switches will generate a power outage signal and transmit it to the power failure information reporting unit.

The scheme of generating a power failure signal through multiple sets of contact power supply or delaying the power switch has certain limitations, that is, when the external power failure causes the optical edge access device to be powered off, multiple sets of contact power supply are turned off or delayed. The power switch cannot generate a power outage signal, which causes the network management system to receive no power outage information.

In order to facilitate the network management to timely and accurately determine whether the optical edge access device is in a fault state, on the basis of the foregoing system, a fault state management module is set in the network management, and is connected with the device state management module, and its function is - according to the receiving The no-signal alarm sent by the other device to the optical edge access device and the power-off information of the access device, and the access device is recorded as a non-fault state.

In order to simplify the processing of the network management system, the device power supply status information reporting module may further include a power-on information reporting sub-module, and the device state management module further includes: a power-on state management sub-module; the power-on information reporting sub-module is executed. The operation is as follows: When the optical edge access device is detected to be powered on, the power-on information is constructed and reported to the power-on state management sub-module.

The operation performed by the power-on state management sub-module is: recording the optical edge access device as a power-on state according to the power-on information reported by the power-on information reporting sub-module.

For a better understanding of the present invention, the system for identifying the power-off of the optical edge access device and the method according to the embodiment of the present invention will be described in detail below with reference to FIG. In FIG. 3, step 31: When the optical edge access device is powered off, the power failure monitoring subunit receives no AC/DC input power of the optical edge access device, and generates a power failure signal, and transmits the power failure signal to the power failure information reporting unit.

Step 32: The power failure information reporting unit constructs the power failure information after receiving the power failure signal, and sends the power failure information to the power failure state management submodule through the management information and the data transmission channel between the optical edge access and the network management.

Because the energy stored in the energy storage subunit is limited, in order to improve the response time of the optical edge access device in the event of power failure, the power failure signal transmission between the power failure monitoring subunit and the power failure information reporting unit, and the power failure information reporting unit and the power failure state management subroutine The power-off information transmission between modules should be as fast as possible; and the power-off information reported by the power-off information reporting unit to the power-down state management sub-module should also be simplified as much as possible. For example, the power-off information only includes the necessary information such as the power failure identifier and device code. The power outage information can also be added with other auxiliary information according to the design needs.

In addition, in order to improve the reliability of the power outage information reporting, the power outage information reporting submodule may repeatedly send the power outage information of the device to the power outage state management submodule of the network management before the energy of the energy storage subunit is exhausted.

Step 33: After receiving the power failure information, the power failure state management submodule confirms that the optical edge access device is in a power outage state, and records the device as a power outage state. '

Step 34: When the fault state management module receives the alarm that the port connected to the optical edge access device is not signaled by the other device, the optical edge access device records the non-fault according to the power failure information of the access device. status.

Step 35: When the optical edge access device is powered on, the power-on information reporting sub-module constructs the power-on information, and reports the power-on information to the power-on state management sub-module through the management information and the data transmission channel between the optical edge access device and the network management device. .

The power-on information may include necessary information such as the power-on identifier and the device code. Of course, the channel information may also add other auxiliary information according to design requirements.

Step 36: After receiving the power-on information, the power-on state management sub-module confirms that the device is in a power-on state, and records the device as a power-on state in time.

When the optical edge access device is recorded as the power-on state, if the fault state management module receives an alarm that the other device sends a port that is connected to the optical edge access device without a signal, the fault state management module accesses according to the optical edge. The power-on status information of the device determines that the alarm is not caused by the power-off of the optical edge access device.

In the embodiment of the present invention, the data transmission format of the power outage information and the powering information reported by the optical edge access device to the network management device is not limited, and the embodiment of the present invention may be in accordance with the ITU-T (International Telecommunication Union - Telecommunication Standardization Sector, International Telecommunication Union - The Telecommunications Standards Department) proposed Q.921 to build the data link layer, which can be in accordance with ISO (International Organization for Standardization, International Standards). Organization of the 8473 protocol to build the network layer.

The present invention is applicable to various types of optical edge access devices, including but not limited to: SDH, PDH, ONU, ESR, PON, BPON, GEPON GPON, APON, and the like.

The technical solution of the present invention will be described below by taking FIG. 1 as an example. Assume that the optical edge access device B is powered off, the communication information between the network management device and the device B is interrupted, and the device will report to the network management device that the port connected to the device B has no signal. Alarm.

If the NMS receives the power failure information reported by Device B, the NMS can determine that the alarm that the device A is connected to the port that is connected to Device B is not caused by the power failure of Device B, and it is not necessary to display Device B or Device B urgently. The fiber between the devices A is damaged and processed, but the device B is recorded as a power outage state.

If the NMS does not receive the power failure information reported by Device B, the device B is damaged or the fiber between Device B and Device A is damaged and processed accordingly.

When the device B is powered on, the device B sends the power-on information to the network management system, and the network management device can know that the device B is in the power-on state. Then, the network management device processes the alarm that the device A is connected to the port that is connected to the device B and has no signal according to the prior art. .

As optical edge access devices extend to the end of the network (eg, large customer line usage) or fiber-to-the-home usage, users may be in non-working hours (eg, after work or during holidays) or at any time (eg, fiber-to-the-home) The optical edge access device is turned off. With the technical solution of the embodiment of the present invention, the network management system can correctly identify the communication information interruption caused by the power failure of the optical edge access device, or the communication caused by the optical edge access device/fiber damage. Information is interrupted. Therefore, the technical solution of the embodiment of the present invention can greatly reduce the workload and cost of operation, management, and maintenance of the optical transmission network, and can timely process optical edge access equipment failures and optical fiber failures, thereby improving service quality and increasing customer satisfaction. Degree, thus achieving the purpose of simplifying network management and improving service levels.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Rights request

An access device management system, comprising: a device power supply status information reporting module, configured in an access device, and connected to a power source of the access device, configured to monitor a power supply state of the access device, When the power supply status changes, the corresponding device power supply status information is constructed and reported to the device status management module;

The system according to claim 1, wherein the device power supply status information reporting module comprises: a power outage information reporting submodule, and the device status management module comprises: a power outage state management submodule;

The power failure information reporting sub-module is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct the power failure information and report the power failure status to the power failure state management device when the access device is detected to be powered off. The module; the power failure state management submodule, configured to record the access device as a power outage state according to the received power outage information.

The system according to claim 2, wherein the power outage information reporting submodule comprises: a power outage monitoring unit and a power outage information reporting unit;

The system according to claim 3, wherein the power failure monitoring unit comprises: a power failure monitoring subunit and an energy storage subunit;

The power failure monitoring subunit is respectively connected to the input power of the access device, and/or the internal power of the device in the access device, and the energy storage subunit, and is configured to generate a power failure signal when the access device is detected to be powered off, and The power failure signal is transmitted to the power failure information reporting unit;

The system according to claim 4, wherein the power failure monitoring unit further comprises: an isolation subunit, disposed between the power failure monitoring subunit and the energy storage subunit, and the access device The input power source and/or the internal power source of the device in the access device are connected to prevent the energy storage subunit from discharging to the outside when the access device is powered off.

The system of claim 3 wherein: said power outage monitoring unit is comprised of a time delay power switch.

The system according to any one of claims 1 to 6, wherein the device power supply status information reporting module comprises: a power-on information reporting sub-module, and the device state management module comprises: a power-on state management sub-module ;

The power-on state management sub-module is configured to record the access device as a power-on state according to the received power-on information.

The system according to any one of claims 2 to 6, wherein the system further comprises: a fault management module, is disposed in the network management, and is connected to the device state management module for Receiving the alarm related to the connection port of the access device and the power failure information of the access device stored in the device state management module, and recording the access device as a non-fault state.

9. A method for managing an access device, comprising the steps of:

10. The method according to claim 9, wherein the method comprises:

When the access device is powered off, report the power failure information to the network management system.

The method according to claim 10, wherein the step of reporting the power outage information comprises: generating a power outage signal when the access device is powered off; the access device constructs the power outage information according to the power outage signal; The power outage information is reported to the network administrator.

The method according to claim 10 or 11, wherein the power failure information comprises - a power failure identifier and device code information.

The method according to any one of claims 9 to 11, wherein the method includes: when the access device resumes power-on, reporting the power-on information to the network management;

The method according to claim 10 or 11, wherein the method further comprises:

The network management device records the access device as a non-fault state according to the alarm related to the connection port of the access device and the power failure information of the access device.

An access device, wherein the access device is configured with a device power state information reporting module, and the device power state information reporting module is connected to the power of the access device, and is used for monitoring the access device. In the power supply state, when the power supply status is changed, the device power status information reporting module constructs the corresponding device power supply status information and reports it.

The access device according to claim 15, wherein the device power supply status information reporting module comprises: a power outage information reporting submodule and/or a powering information reporting submodule;

The power failure information reporting sub-module is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct a power failure information and report the power when the access device is powered off; It is connected to the input power of the access device and/or the internal power of the device in the access device, and is configured to construct the power-on information and report it when the access device is detected to be powered on.

The access device according to claim 16, wherein the power outage information reporting submodule comprises: a power outage monitoring unit and a power outage information reporting unit;

The access device according to claim 17, wherein the power failure monitoring unit specifically includes: a power failure monitoring subunit and an energy storage subunit;

The power failure monitoring sub-unit is respectively connected to the input power of the access device, and/or the power source of the device in the access device, and the energy storage sub-unit, and is configured to generate a power-off signal when the access device is detected to be powered off. And transmitting a power failure signal to the power failure information reporting unit;

The access device according to claim 18, wherein the power failure monitoring unit further comprises: an isolation subunit, disposed between the power failure monitoring subunit and the energy storage subunit, and connected The input power of the device and/or the internal power of the device in the access device are connected to prevent the energy storage subunit from discharging to the outside when the access device is powered off.