CN106899453B - Method and device for detecting power adapter fault - Google Patents
Method and device for detecting power adapter fault Download PDFInfo
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- CN106899453B CN106899453B CN201710119257.2A CN201710119257A CN106899453B CN 106899453 B CN106899453 B CN 106899453B CN 201710119257 A CN201710119257 A CN 201710119257A CN 106899453 B CN106899453 B CN 106899453B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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Abstract
The invention discloses a method for detecting the fault of a power adapter, which comprises the following steps: after receiving a power-off notice sent by the port, determining a first current state of the port; if the first current state of the port is an observation state, determining whether the receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval; if the receiving time interval exceeds the set time interval, adding one to the numerical value of the observation factor; determining whether the value of the observation factor reaches a set value; and if the numerical value of the observation factor reaches the set value, determining that the power adapter has a fault, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage. The scheme can realize the detection of the power adapter failure.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for detecting a power adapter failure.
Background
Power over Ethernet (PoE) is a technology for transmitting electric energy by using Ethernet twisted-pair cables such as 10BASE-T, 100BASE-TX and 1000BASE-T, and the reliable maximum Power supply distance is 100 meters. The PoE Power supply system comprises Power Supply Equipment (PSE) and powered Equipment (PD), the PSE can be a router, a switch and the like, the PD can be an Internet Protocol (IP) phone, an Access Point (AP), a network camera and the like, and the PSE provides a Power supply for the PD while transmitting a data signal for the PD through an ethernet twisted pair. The PSE provides power in compliance with an Institute of Electrical and Electronics Engineers (IEEE) 802.3af (power of 13W) or IEEE802.3at (power of 30W), and the PSE is powered only if it detects a PD supporting the IEEE802.3af or IEEE802.3at standards.
At present, terminals such as a plurality of network cameras and mobile phone chargers do not support the IEEE802.3af or IEEE802.3at standard, so that the PSE cannot directly supply power to the terminals, the output voltage of the PSE needs to be converted through a power adapter, and the voltage output by the power adapter can be stably supplied to the terminals. If the power adapter is damaged or fails, the terminal cannot be normally powered. However, there is currently no method for detecting a power adapter failure.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting a power adapter fault, which are used for detecting the power adapter fault.
According to an embodiment of the present invention, a method for detecting a power adapter failure is provided, which is applied in a PoE system including a PSE, wherein the power adapter is connected to a port of the PSE, and the method includes:
after receiving a power-off notice sent by the port, determining a first current state of the port;
if the first current state of the port is an observation state, determining whether the receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval;
if the receiving time interval exceeds the set time interval, adding one to the numerical value of the observation factor;
determining whether the value of the observation factor reaches a set value;
and if the numerical value of the observation factor reaches the set value, determining that the power adapter has a fault, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage.
Specifically, determining whether the receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval specifically includes:
acquiring the receiving time of the last power-off notice;
calculating the receiving time interval between the receiving time of the power-off notice of this time and the receiving time of the power-off notice of the last time;
comparing the receive time interval with the set time interval;
if the receiving time interval is larger than the set time interval, determining that the receiving time interval exceeds the set time interval;
and if the receiving time interval is smaller than or equal to the set time interval, determining that the receiving time interval does not exceed the set time interval.
Optionally, the method further includes:
if the numerical value of the observation factor does not reach the set value or the receiving time interval does not exceed the set time interval, determining that the power adapter is normal;
setting the value of the observation factor to zero;
and updating the first current state of the port to be a normal state.
Optionally, the method further includes:
if the first current state of the port is a penalty state, determining whether the port meets a penalty state exit condition; if the punishment state exit condition is met, updating the first current state of the port to be a normal state;
and if the first current state of the port is a normal state, determining that the power adapter is suspected to be in fault, and updating the first current state of the port to be in an observation state.
Optionally, the method further includes:
after receiving a power-on notification sent by the port, determining a second current state of the port;
if the second current state of the port is a penalty state, determining whether the port meets a penalty state exit condition;
and if the port meets the punishment state exit condition, updating the second current state of the port to be the normal state.
According to an embodiment of the present invention, there is also provided a device for detecting a power adapter failure, which is applied in a PoE system including a PSE, wherein the power adapter is connected to a port of the PSE, the device including:
the first determining module is used for determining a first current state of the port after receiving a power-off notice sent by the port;
the second determining module is used for determining whether the receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval or not if the first current state of the port is the observation state;
the adding module is used for adding one to the numerical value of the observation factor if the receiving time interval exceeds the set time interval;
the third determining module is used for determining whether the numerical value of the observation factor reaches a set value;
and the updating module is used for determining that the power adapter fails if the numerical value of the observation factor reaches the set value, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage.
Specifically, the second determining module is specifically configured to:
acquiring the receiving time of the last power-off notice;
calculating the receiving time interval between the receiving time of the power-off notice of this time and the receiving time of the power-off notice of the last time;
comparing the receive time interval with the set time interval;
if the receiving time interval is larger than the set time interval, determining that the receiving time interval exceeds the set time interval;
and if the receiving time interval is smaller than or equal to the set time interval, determining that the receiving time interval does not exceed the set time interval.
Optionally, the update module is further configured to:
if the numerical value of the observation factor does not reach the set value or the receiving time interval does not exceed the set time interval, determining that the power adapter is normal;
setting the value of the observation factor to zero;
and updating the first current state of the port to be a normal state.
Optionally, the update module is further configured to:
if the first current state of the port is a penalty state, determining whether the port meets a penalty state exit condition; if the punishment state exit condition is met, updating the first current state of the port to be a normal state;
and if the first current state of the port is a normal state, determining that the power adapter is suspected to be in fault, and updating the first current state of the port to be in an observation state.
Optionally, the first determining module is further configured to determine a second current state of the port after receiving a power-on notification sent by the port; if the second current state of the port is a penalty state, determining whether the port meets a penalty state exit condition;
the updating module is further configured to update the second current state of the port to the normal state if the port meets the punishment state exit condition.
The invention has the following beneficial effects:
the embodiment of the invention provides a method and a device for detecting the fault of a power adapter, which are used for determining a first current state of a port after receiving a power-off notice sent by the port; if the first current state of the port is an observation state, determining whether the receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval; if the receiving time interval exceeds the set time interval, adding one to the numerical value of the observation factor; determining whether the value of the observation factor reaches a set value; and if the numerical value of the observation factor reaches the set value, determining that the power adapter has a fault, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage. According to the scheme, whether the power adapter connected with the port fails or not is determined according to the current state of the port, the receiving time interval of the two adjacent power-off notifications and the numerical value of the observation factor, so that the detection of the failure of the power adapter is realized, the normal power supply of the terminal connected with the power adapter is ensured, and the normal work of the power adapter is ensured.
Drawings
FIG. 1 is a flowchart of a method for detecting a power adapter failure according to an embodiment of the present invention;
FIG. 2 is a flowchart of S12 in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another apparatus for detecting a power adapter failure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for detecting a power adapter failure according to an embodiment of the present invention.
Detailed Description
In order to implement detection of a power adapter failure, an embodiment of the present invention provides a method for detecting a power adapter failure, which is applied to a PSE included in a PoE system, where the power adapter is connected to a port of the PSE, and the power adapter and a connected terminal are used as PDs of the PoE system, and a flow of the method is shown in fig. 1, and the method includes the following steps:
s11: and after receiving a power-off notice sent by the port, determining the first current state of the port.
When the power adapter breaks down, the power adapter can be powered off actively, at the moment, a port connected with the power adapter on the PSE can send a power-down notice, and the PSE can receive the power-down notice sent by the port and trigger a flow for detecting the fault of the power adapter.
There are three states of the port: the normal state, the observation state and the penalty state can identify the state of the port by setting an identification bit, for example, the identification bit corresponding to the penalty state is false, the identification bit corresponding to the normal state is true, and the identification bit corresponding to the observation state is uncartiain.
S12: and if the first current state of the port is the observation state, determining whether the receiving time interval between the power-off notice of the current time and the power-off notice of the last time exceeds a set time interval.
The set time interval may be set according to actual conditions, and may be set to 8 seconds, 9 seconds, 16 seconds, and the like, for example.
S13: if the receiving time interval exceeds the set time interval, the value of the observation factor is increased by one.
Wherein the numerical value of the observation factor records the continuous times that the receiving time interval between two next telegrams exceeds the set time interval.
S14: it is determined whether the value of the observation factor reaches a set value.
The set value can be set according to actual needs, for example: set to 3 times, 5 times, 7 times, 10 times, etc.
S15: and if the numerical value of the observation factor reaches the set value, determining that the power adapter fails, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage.
Because the numerical value of the observation factor records the continuous times that the receiving time interval between two next electricity messages exceeds the set time interval, if the numerical value of the observation factor reaches the set value, the power adapter can be determined to be in fault. After determining that the power adapter is in a fault, when the port is in a punished state for a long time, sending out a prompt message of the fault of the power adapter at regular intervals (for example, 30 minutes) to remind a user to timely replace the power adapter. Such hint information may include printing syslog, and trap information in network management, among others.
In an alternative mode, if the numerical value of the observation factor does not reach the set value or the receiving time interval does not exceed the set time interval, the power adapter is determined to be normal; setting the value of the observation factor to zero; and updating the first current state of the port to a normal state.
According to the scheme, whether the power adapter connected with the port fails or not is determined according to the current state of the port, the receiving time interval of the two adjacent power-off notifications and the numerical value of the observation factor, so that the detection of the failure of the power adapter is realized, the normal power supply of the terminal connected with the power adapter is ensured, and the normal work of the power adapter is ensured.
Specifically, the implementation manner of determining whether the receiving time interval between the current power-off notification and the last power-off notification in S12 exceeds the set time interval includes, as shown in fig. 2:
s121: and acquiring the receiving time of the last power-off notice.
S122: and calculating the receiving time interval between the receiving time of the power-off notice of this time and the receiving time of the power-off notice of the last time.
The difference between the receiving time of the power-off notification of this time and the receiving time of the power-off notification of the last time can be used as the receiving time interval.
S123: comparing the receiving time interval with the set time interval, and if the receiving time interval is greater than the set time interval, performing S124; if the receiving time interval is less than or equal to the set time interval, S125 is performed.
S124: determining that the reception time interval exceeds the set time interval.
S125: determining that the reception time interval does not exceed the set time interval.
S121-S125 provide an implementation manner for determining whether the receiving time interval between the current power-down notification and the last power-down notification exceeds the set time interval, which may be implemented by other manners, and will not be described herein again.
An embodiment of the present invention provides another method for detecting a power adapter failure, as shown in fig. 3, on the basis of fig. 1, the method further includes:
s16: if the first current state of the port is a punishment state, determining whether the port meets a punishment state exit condition; and if the punishment state exit condition is met, updating the first current state of the port to be the normal state.
After the port enters the penalty state, it needs to determine whether the port exits the penalty state according to a penalty state exit condition, which may include one of the following two conditions: firstly, a port sends a power-on notice, the port is plugged, enabled and the like, and once the port sends the power-on notice, the port is considered to exit a punishment state; secondly, the power-on or power-off state of the port exceeds a certain time, namely the power adapter recovers normal operation at a certain time, the PSE end may not sense that the port has recovered normal operation in a short time, but the port is always in the power-on state, if the power-on state lasts for a certain time (the certain time can be set to 60 seconds), the power adapter is considered to have recovered normal operation, the port exits the punishment state, and similarly, when the power-off state lasts for a certain time, the power adapter is considered to have recovered normal operation.
S17: and if the first current state of the port is the normal state, determining that the power adapter is suspected to be in fault, and updating the first current state of the port to be in the observation state.
When the port is in a normal state, once the behavior that the port sends out the power-off notification is monitored, the port immediately enters an observation state and determines that the power adapter is suspected to be in a fault, and at the moment, the port can normally output voltage to the power adapter.
In an optional implementation manner, after a power-on notification sent by a port is received, a second current state of the port is determined; if the second current state of the port is a punishment state, determining whether the port meets a punishment state exit condition; and if the port meets the punishment state exit condition, updating the second current state of the port to be the normal state.
Based on the same inventive concept, the embodiment of the invention provides a device for detecting the fault of a power adapter, which is applied to a Power Sourcing Equipment (PSE) in a power over Ethernet (PoE) system, wherein the power adapter is connected to a port of the PSE. The structure of the device is shown in fig. 4, and comprises:
a first determining module 41, configured to determine a first current state of a port after receiving a power-off notification sent by the port;
a second determining module 42, configured to determine whether a receiving time interval between the current power-off notification and the last power-off notification exceeds a set time interval if the first current state of the port is the observation state;
an adding module 43, configured to add one to the value of the observation factor if the receiving time interval exceeds the set time interval;
a third determination module 44, configured to determine whether the value of the observation factor reaches a set value;
and an updating module 45, configured to determine that the power adapter is faulty if the value of the observation factor reaches a set value, set the value of the observation factor to zero, and update the first current state of the port to a penalty state, so as to prohibit the port from outputting voltage.
According to the scheme, whether the power adapter connected with the port fails or not is determined according to the current state of the port, the receiving time interval of the two adjacent power-off notifications and the numerical value of the observation factor, so that the detection of the failure of the power adapter is realized, the normal power supply of the terminal connected with the power adapter is ensured, and the normal work of the power adapter is ensured.
Specifically, the second determining module 42 is specifically configured to:
acquiring the receiving time of the last power-off notice;
calculating the receiving time interval between the receiving time of the power-off notice at this time and the receiving time of the power-off notice at the last time;
comparing the receiving time interval with a set time interval;
if the receiving time interval is greater than the set time interval, determining that the receiving time interval exceeds the set time interval;
and if the receiving time interval is less than or equal to the set time interval, determining that the receiving time interval does not exceed the set time interval.
Optionally, the updating module 45 is further configured to:
if the numerical value of the observation factor does not reach the set value or the receiving time interval does not exceed the set time interval, determining that the power adapter is normal;
setting the value of the observation factor to zero;
and updating the first current state of the port to a normal state.
Optionally, the updating module 45 is further configured to:
if the first current state of the port is a punishment state, determining whether the port meets a punishment state exit condition; if the punishment state exit condition is met, updating the first current state of the port to be a normal state;
and if the first current state of the port is the normal state, determining that the power adapter is suspected to be in fault, and updating the first current state of the port to be in the observation state.
Optionally, the first determining module 41 is further configured to determine a second current state of the port after receiving the power-on notification sent by the port; if the second current state of the port is a punishment state, determining whether the port meets a punishment state exit condition;
the updating module 45 is further configured to update the second current state of the port to the normal state if the port meets the penalty state exit condition.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While alternative embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. A method for detecting a power adapter failure is applied to Power Supply Equipment (PSE) included in a power over Ethernet (PoE) system, wherein the power adapter is connected to a port of the PSE, and the method comprises the following steps:
after receiving a power-off notice sent by the port, determining a first current state of the port;
if the first current state of the port is an observation state, determining whether a receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval, wherein an identification bit corresponding to the observation state of the port is uncertain;
if the receiving time interval exceeds the set time interval, adding one to the numerical value of the observation factor;
determining whether the value of the observation factor reaches a set value;
and if the numerical value of the observation factor reaches the set value, determining that the power adapter has a fault, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage.
2. The method of claim 1, wherein determining whether a receiving time interval between the current power down announcement and the last power down announcement exceeds a set time interval comprises:
acquiring the receiving time of the last power-off notice;
calculating the receiving time interval between the receiving time of the power-off notice of this time and the receiving time of the power-off notice of the last time;
comparing the receive time interval with the set time interval;
if the receiving time interval is larger than the set time interval, determining that the receiving time interval exceeds the set time interval;
and if the receiving time interval is smaller than or equal to the set time interval, determining that the receiving time interval does not exceed the set time interval.
3. The method of claim 1, further comprising:
if the numerical value of the observation factor does not reach the set value or the receiving time interval does not exceed the set time interval, determining that the power adapter is normal;
setting the value of the observation factor to zero;
and updating the first current state of the port to be a normal state.
4. The method of claim 1, further comprising:
if the first current state of the port is a penalty state, determining whether the port meets a penalty state exit condition; if the punishment state exit condition is met, updating the first current state of the port to be a normal state;
and if the first current state of the port is a normal state and the behavior of sending a power-off notification by the port is monitored, determining that the power adapter is suspected to have a fault, and updating the first current state of the port to an observation state.
5. The method of any of claims 1-4, further comprising:
after receiving a power-on notification sent by the port, determining a second current state of the port;
if the second current state of the port is a penalty state, determining whether the port meets a penalty state exit condition;
and if the port meets the punishment state exit condition, updating the second current state of the port to be the normal state.
6. A device for detecting a power adapter failure in a PoE system including a PSE, the power adapter being connected to a port of the PSE, the device comprising:
the first determining module is used for determining a first current state of the port after receiving a power-off notice sent by the port;
the second determining module is used for determining whether the receiving time interval between the current power-off notice and the last power-off notice exceeds a set time interval or not if the first current state of the port is the observation state, wherein the identification bit corresponding to the observation state of the port is uncertain;
the adding module is used for adding one to the numerical value of the observation factor if the receiving time interval exceeds the set time interval;
the third determining module is used for determining whether the numerical value of the observation factor reaches a set value;
and the updating module is used for determining that the power adapter fails if the numerical value of the observation factor reaches the set value, setting the numerical value of the observation factor to zero, and updating the first current state of the port to a punishment state so as to prohibit the port from outputting voltage.
7. The apparatus of claim 6, wherein the second determining module is specifically configured to:
acquiring the receiving time of the last power-off notice;
calculating the receiving time interval between the receiving time of the power-off notice of this time and the receiving time of the power-off notice of the last time;
comparing the receive time interval with the set time interval;
if the receiving time interval is larger than the set time interval, determining that the receiving time interval exceeds the set time interval;
and if the receiving time interval is smaller than or equal to the set time interval, determining that the receiving time interval does not exceed the set time interval.
8. The apparatus of claim 6, wherein the update module is further configured to:
if the numerical value of the observation factor does not reach the set value or the receiving time interval does not exceed the set time interval, determining that the power adapter is normal;
setting the value of the observation factor to zero;
and updating the first current state of the port to be a normal state.
9. The apparatus of claim 6, wherein the update module is further configured to:
if the first current state of the port is a penalty state, determining whether the port meets a penalty state exit condition; if the punishment state exit condition is met, updating the first current state of the port to be a normal state;
and if the first current state of the port is a normal state and the behavior of sending a power-off notification by the port is monitored, determining that the power adapter is suspected to have a fault, and updating the first current state of the port to an observation state.
10. The apparatus according to any of claims 6-9, wherein the first determining module is further configured to determine the second current state of the port after receiving a power-on notification sent by the port; if the second current state of the port is a penalty state, determining whether the port meets a penalty state exit condition;
the updating module is further configured to update the second current state of the port to the normal state if the port meets the punishment state exit condition.
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| CN203747451U (en) * | 2014-01-28 | 2014-07-30 | 广东欧珀移动通信有限公司 | Battery charging device |
| CN105576949A (en) * | 2015-12-23 | 2016-05-11 | 青岛海信移动通信技术股份有限公司 | Power adapter and debugging method and system |
| CN106199098A (en) * | 2016-06-22 | 2016-12-07 | 华立科技股份有限公司 | Under ammeter power-down state, low-power consumption during electrical network full decompression exception detects control method |
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