CN109586788B

CN109586788B - Monitoring system fault diagnosis method and device, computer equipment and storage medium

Info

Publication number: CN109586788B
Application number: CN201811503064.8A
Authority: CN
Inventors: 陈翠和; 范国华; 段少华
Original assignee: Jiangxi Youhua Technology Co ltd; Yichun University
Current assignee: Jiangxi Youhua Technology Co ltd; Yichun University
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2021-08-24
Anticipated expiration: 2038-12-10
Also published as: CN109586788A

Abstract

The invention is applicable to the field of computers, and provides a monitoring system fault diagnosis method, a monitoring system fault diagnosis device, computer equipment and a readable storage medium, wherein the method comprises the following steps: acquiring a plurality of signals of an optical port of the optical transceiver and a plurality of signals of the first electrical port in an acquisition period according to a preset acquisition frequency; determining the fault type existing in the acquisition period according to the acquired multiple signals of the optical port and the first electrical port; and determining the fault reason according to the fault type existing in the acquisition period. The embodiment of the invention provides a simple and feasible fault diagnosis method, and a fault diagnosis result with high accuracy can be obtained by taking a signal of an optical transmitter and receiver of a monitoring system as input according to a two-stage fault diagnosis algorithm. In addition, the method does not need to monitor the IP address of the network, and has high application value and popularization value for the network monitoring system with the shortage of IP address resources.

Description

Monitoring system fault diagnosis method and device, computer equipment and storage medium

Technical Field

The present invention relates to the field of computers, and in particular, to a monitoring system fault diagnosis method, apparatus, computer device, and storage medium.

Background

At present, the social public security situation is increasingly complex, and the traditional public security prevention and control measures are difficult to meet the practical requirements. Therefore, the Internet of things technology is utilized, the function of the video monitoring system is fully exerted, and the establishment of the social security and prevention system is promoted to become a powerful measure for security and prevention in a new era. With the rapid advance of 'snow engineering' construction by governments in recent years, the number and coverage of video monitoring points are rapidly increased, which puts higher demands on the operation and maintenance of networks.

The failure reasons of the video monitoring points include equipment aging damage, equipment burnout caused by lightning, equipment crash caused by high temperature, cutting off of power supply lines in municipal engineering and the like, and possibly related responsibility departments include operation and maintenance companies, telecommunication operators, mobile communication operators and power supply companies and the like. Because the fault reason can not be obtained in time, the responsibility is often uncertain in the actual operation, and the maintenance is not in time, thereby reducing the actual effect of the snow engineering.

Therefore, in the prior art, the video monitoring fault point is difficult to check, and the technical problem of the actual monitoring effect is reduced.

Disclosure of Invention

The embodiment of the invention provides a monitoring system fault diagnosis method, and aims to solve the technical problem that video monitoring faults are difficult to check in the prior art

The embodiment of the invention provides a monitoring system fault diagnosis method, which comprises the following steps:

acquiring a plurality of signals of an optical port of an optical transceiver and a plurality of signals of a first electrical port in an acquisition cycle according to a preset acquisition frequency, wherein the plurality of signals of the optical port comprise an optical port output high level and an optical port output low level which are used for representing the working state of an optical fiber link connected with the optical port of the optical transceiver, and the plurality of signals of the first electrical port comprise a first electrical port output high level and a first electrical port output low level which are used for representing the working state of a first camera link connected with the first electrical port of the optical transceiver;

determining the fault types existing in the acquisition period according to the acquired multiple signals of the optical port and the first electrical port, wherein the fault types comprise optical fiber link fault, optical fiber link no data stream, first camera link fault and first camera no data stream;

and determining the fault reason according to the fault type existing in the acquisition period.

The embodiment of the invention also provides a monitoring system fault diagnosis device, which comprises:

the signal acquisition unit is used for acquiring a plurality of signals of an optical port of an optical transceiver and a plurality of signals of a first electrical port in an acquisition cycle according to a preset acquisition frequency, wherein the plurality of signals of the optical port comprise an optical port output high level and an optical port output low level which are used for representing the working state of an optical fiber link connected with the optical port of the optical transceiver, and the plurality of signals of the first electrical port comprise a first electrical port output high level and a first electrical port output low level which are used for representing the working state of a first camera link connected with the first electrical port of the optical transceiver;

a fault type determining unit, configured to determine a fault type existing in the acquisition period according to the acquired multiple signals of the optical port and the multiple signals of the first electrical port, where the fault type includes an optical fiber link fault, no data stream in the optical fiber link, a first camera link fault, and no data stream in the first camera; and

and the fault cause determining unit is used for determining a fault cause according to the fault type existing in the acquisition period.

The embodiment of the present invention further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the monitoring system fault diagnosis method.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the processor is enabled to execute the steps of the monitoring system fault diagnosis method.

According to the monitoring system diagnosis method provided by the embodiment of the invention, the signals of the optical port and the electrical port of the optical transceiver are collected, the existing fault type is determined according to the signals, the corresponding fault reason is determined according to the existing fault type, and the finally diagnosed fault reason is more accurate through two-stage fault diagnosis. The embodiment of the invention provides a simple and effective monitoring system fault diagnosis method, and in addition, the method does not need to occupy the IP address of the video network monitoring network, so that the method has high application value and popularization value for the video network monitoring system with the shortage of IP address resources.

Drawings

FIG. 1 is a schematic diagram of a conventional monitoring system;

FIG. 2 is a flow chart illustrating steps of a monitoring system diagnostic method according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating the steps for determining the type of fault in an embodiment of the present invention;

FIG. 4 is a flowchart of the steps for determining the cause of a fault according to an embodiment of the present invention;

FIG. 5 is a logic diagram of a NAND gate of the method for determining the cause of the failure according to the embodiment of the present invention;

fig. 6 is a flowchart illustrating steps of a monitoring system fault diagnosis method according to another embodiment of the present invention.

FIG. 7 illustrates the steps for determining the type of fault that is present steadily in accordance with another embodiment of the present invention;

FIG. 8 is a flowchart illustrating steps of a monitoring system fault diagnosis method according to another embodiment of the present invention;

FIG. 9 is a flowchart of the steps for determining the type of fault in yet another embodiment of the present invention;

FIG. 10 is a flowchart of the steps for determining the cause of a fault in accordance with yet another embodiment of the present invention;

FIG. 11 is a NAND gate logic diagram of a method for determining a cause of a fault in accordance with another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a monitoring system fault diagnosis apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a conventional monitoring system, and for convenience of explanation, only a part related to the monitoring system is shown.

The monitoring system comprises a camera 101, a camera link 102, an optical transmitter and receiver (transmitting end) 103, an optical fiber link 104, an optical transmitter and receiver (receiving end) 105 and a display 106.

In the monitoring system, a camera 101 is connected to an electrical port of an optical transmitter/receiver (transmitter) 103 through a camera link, wherein one optical transmitter/receiver (transmitter) is generally connected to a plurality of cameras. An optical port of the optical transceiver (transmitting end) 103 is connected to an optical transceiver (receiving end) 105 through an optical fiber link 104.

In general, the optical transceiver (receiving end) 105 and the display 106 are located indoors, and the probability of failure is much smaller than that of the camera 101, the camera link 102, the optical transceiver (transmitting end) 103, and the optical fiber link 104 located outdoors. That is, in the monitoring system, failure of the camera, the camera link, the optical transmitter/receiver (transmitter), and the optical fiber link is the most likely cause.

The optical transceiver described in this document is referred to as an optical transceiver (transmitting end) 103 unless otherwise specified.

Fig. 2 is a flowchart illustrating steps of a monitoring system diagnosing method according to an embodiment of the present invention, which is described in detail below.

Step S201, acquiring a plurality of signals of the optical port of the optical transceiver and a plurality of signals of the first electrical port in an acquisition period according to a preset acquisition frequency.

In the embodiment of the invention, the control circuit of the optical transceiver is directly connected with the control circuit of the optical transceiver to collect a plurality of signals of the optical port and the first electric port of the optical transceiver, so that the occupation of interface resources of the optical transceiver can be avoided, and the occupation of IP addresses is not needed.

In the embodiment of the present invention, the optical transceiver includes an optical port and a plurality of electrical ports, where a plurality of signals of the optical port are used to indicate a working state of an optical fiber link connected to the optical transceiver, when the optical fiber link is normal, a signal output by the optical port is at a high level, when the optical fiber link is abnormal, the signal output by the optical port is at a low level, and when data is transmitted in the optical fiber link, the signal output by the optical port has a frequency of F_actHaving a period of T_actThe square wave of (1); the signals of the first electric port are used for representing the working state of a first camera link connected with the optical transceiver, when the camera link is normal, the signals output by the corresponding electric port are high level, when the camera link is abnormal, the signals output by the corresponding electric port are low level, and when data is transmitted in the optical fiber link, the signals output by the optical port have frequency of F_actHaving a period of T_actSquare wave of (a).

As one of the inventionIn the preferred embodiment, since the video monitoring server will randomly send commands to the cameras and also generate data streams with relatively short duration, in order to improve the accuracy of the determination, it is preferable that each acquisition cycle has a length of 3-10T_actSampling frequency F_sIs 2-4F_act。

Step S202, determining the fault type existing in the acquisition period according to the acquired multiple signals of the optical port and the first electrical port.

In an embodiment of the present invention, the failure types include a failure of an optical fiber link, no data flow of the optical fiber link, a failure of a link of a first camera, and no data flow of the first camera.

In an embodiment of the invention, the signal for each electrical port may determine the type of failure of the corresponding camera link.

In the embodiment of the present invention, please refer to fig. 3 for a specific step of determining the type of the fault existing in the acquisition period according to the acquired multiple signals of the optical port and the first electrical port.

And step S203, determining a fault reason according to the fault type existing in the acquisition period.

In the embodiment of the invention, the existing fault type is taken as input, the fault state is comprehensively analyzed, and the intentional tree judgment method is adopted, so that the fault reason can be accurately determined, and the judgment accuracy is improved.

Fig. 3 is a flowchart of the steps for determining the type of fault in the embodiment of the present invention, which are described in detail below.

In the embodiment of the present invention, the determining the failure type mainly includes determining four failure types, i.e., a failure of an optical fiber link, no data stream of the optical fiber link, a failure of a link of a first camera, and no data stream of the first camera. Wherein steps S301-S303 are for determining whether there is a failure type of fiber link failure, steps S304-S307 are for determining whether there is a failure type of fiber link no data flow, steps S308-S310 are for determining whether there is a failure type of first camera link failure, and steps S311-S314 are for determining whether there is a failure type of first camera link no data flow.

The following steps S301 to S303 specifically give the flow of steps for determining whether there is a failure type of fiber link failure.

Step S301, determining whether there is an optical port output high level in the collected multiple signals of the optical port.

In the embodiment of the invention, because the signal output by the optical port is at the high level when the optical fiber link works normally, whether the optical fiber link works normally can be judged by judging whether the optical port output high level exists in a plurality of collected signals of the optical port.

In the embodiment of the present invention, when it is determined that there is an optical port output high level in the collected multiple signals of the optical port, step S302 is executed; and executing step S303 when it is determined that there is no optical port output high level in the collected multiple signals of the optical port.

Step S302, determining the fault type of the optical fiber link fault does not exist in the acquisition period.

In the embodiment of the present invention, since there is a high output level of the optical interface in the collected multiple signals of the optical interface, that is, it indicates that the optical fiber link has normally operated, it may be determined that there is no fault type of the optical fiber link fault in the collection period.

Step S303, determining a fault type of the optical fiber link fault existing in the acquisition period.

In the embodiment of the invention, because the plurality of collected signals of the optical port do not have the optical port output high level, that is, the optical fiber link is not in a normal working state during each sampling, the optical fiber link is in an abnormal state with higher probability on the premise of ensuring the sampling frequency. The type of failure in which there is a fiber link failure within the acquisition period can thus be determined.

The following steps S304-S307 specifically show the flow of steps for determining whether there is a failure type of fiber link without data flow.

Step S304, calculating an optical port signal inversion frequency of the plurality of collected signals of the optical port.

In the embodiment of the invention, the optical port signal turnover frequency F_toggleThe calculation method of (2) is as follows: calculating the times N, F of the difference (high potential and low potential) of two adjacent signals in the collected signals_toggleN/acquisition period.

Step S305, determining whether the optical port signal turnover frequency is not less than a preset signal frequency during normal data transmission.

In the embodiment of the present invention, F is determined_toggleAnd F_sThe magnitude relationship of (1).

In the embodiment of the invention, when the signal turnover frequency of the optical port is judged to be not less than the preset signal frequency in normal data transmission, namely F_toggle≥F_sIf so, executing step S306; when the optical port signal turnover frequency is judged to be smaller than the preset signal frequency in normal data transmission, namely F_toggle＜F_sThen, step S307 is executed.

Step S306, determining that no fault type of the optical fiber link without data stream exists in the acquisition period.

Step S307, determining that the fault type of the optical fiber link without data stream exists in the acquisition period.

The following steps S308-S310 specifically give a flow of steps for determining whether there is a failure type of the first camera link failure.

Step S308, determining whether a first electrical port output high level exists in the collected multiple signals of the first electrical port.

In the embodiment of the invention, because the signal output by the first electrical port is high level when the first camera link works normally, whether the first camera link works normally can be judged by judging whether the high level exists in the collected signals of the first electrical port.

In the embodiment of the present invention, when it is determined that the first electrical port outputs a high level in the collected multiple signals of the first electrical port, step S309 is executed; and executing step S310 when the first electric port output high level does not exist in the collected signals of the first electric port.

Step S309, determining a fault type that the first camera link fault does not exist in the acquisition period.

In the embodiment of the invention, because the high level output by the first electrical port exists in the collected multiple signals of the first electrical port, namely the first electrical port is indicated to be normally operated, the fault type of the first camera link fault which does not exist in the collection period can be determined.

Step S310, determining that the fault type of the first camera link fault exists in the acquisition period.

In the embodiment of the present invention, because the first electrical port does not output a high level in the collected multiple signals of the first electrical port, that is, it indicates that the first camera link is not in a normal operating state every time of sampling, and on the premise of ensuring the sampling frequency, it indicates that the first camera link has a higher probability of being in an abnormal state. It is thus possible to determine the type of failure in which there is a failure of the first camera link during the acquisition period.

The following steps S311 to S314 specifically give a flow of steps for determining whether there is a failure type of no data stream of the first camera.

Step S311, calculating a first electrical port signal inversion frequency of the collected multiple signals of the first electrical port.

In the embodiment of the invention, the first electric port signal is inverted in frequency T_toggleThe calculation method of (2) is as follows: calculating the times M, T of different potentials (i.e. high potential and low potential) of two adjacent signals in the collected multiple signals_toggleM/acquisition period.

Step S312, determining whether the first electrical port signal turnover frequency is not less than a preset signal frequency during normal data transmission.

In the embodiment of the present invention, T is determined_toggleAnd F_sThe magnitude relationship of (1).

In the embodiment of the invention, when the first electric port signal turnover frequency is judged to be not less than the preset signal frequency in normal data transmission, namely T_toggle≥F_sThen, step S313 is executed; when the first electric port signal turnover frequency is judged to be smaller than the preset signal frequency in normal data transmission, namely T_toggle＜F_sThen, step S314 is executed.

Step 313, determining that no fault type of the first camera without data stream exists in the acquisition period.

Step S314, determining that there is a fault type that the first camera has no data stream in the acquisition period.

The embodiment of the invention specifically discloses a method for judging each fault type, and it should be noted that the sequence for judging each fault type provided by the invention should not be taken as a limit for judging each fault type, and in fact, there is no strict sequence limit for judging each fault type.

Fig. 4 is a flowchart of a step of determining a cause of a fault according to an embodiment of the present invention, which is described in detail below.

Step S401, judging whether the fault type of the optical fiber link, the data stream of the optical fiber link and the data stream of all the cameras exist simultaneously in the acquisition period.

In the embodiment of the present invention, when it is determined that a fiber link fault, no data stream in the fiber link, and no data stream in all cameras exist simultaneously in the acquisition period, step S402 is executed; and executing step S403 when the failure type of the optical fiber link, the optical fiber link without data stream, and all the cameras without data stream is determined to exist simultaneously in the acquisition period.

Step S402, determining the failure reason is the fiber link failure.

In the embodiment of the invention, when the failure types that the optical fiber link fails, the optical fiber link has no data stream and all the cameras have no data stream are judged to exist simultaneously in the acquisition period, the failure type indicates that the optical fiber link has a high possibility of being a failure, so that the failure reason can be determined to be the failure of the optical fiber link.

Step S403, determining whether a fault type without data stream exists in all cameras in the acquisition period.

In the embodiment of the present invention, when the failure types of the optical fiber link failure, no data stream in the optical fiber link, and no data stream in all cameras in the acquisition period are determined, it is determined that the failure cause is not the optical fiber link failure, and therefore further determination is required.

In the embodiment of the present invention, when it is determined that a fault type without data stream exists in all cameras in the acquisition period, step S404 is executed; when it is determined that the failure type without data stream exists in not all the cameras in the acquisition period, step S405 is executed.

And step S404, determining that the fault reason is the fault of the optical transceiver.

In the embodiment of the present invention, when it is determined that not all the cameras have the fault type without data stream in the acquisition period, since there is no fault in the optical link and no fault type without data stream in the optical fiber link, it indicates that there is a high possibility that the optical transceiver is a fault, and it may be determined that the fault cause is an optical transceiver fault.

Step S405, determining whether a link failure of the second camera and a failure type of no data stream of the second camera exist simultaneously in the acquisition period.

In the embodiment of the present invention, when it is determined that all the cameras do not have a fault type without data stream in the acquisition period, it indicates that the optical transceiver can receive data normally, that is, the optical transceiver does not have a fault, and therefore, further determination is required.

In the embodiment of the present invention, the determination condition in this step is for one camera link and the corresponding camera, unlike the determination condition in the foregoing step for all cameras.

In the embodiment of the present invention, when it is determined that a link failure of the second camera and a failure type of no data stream of the second camera exist simultaneously in the acquisition period, step S406 is executed; and when judging that the link fault of the second camera and the fault type that the second camera has no data stream do not exist simultaneously in the acquisition period, executing step S407.

Step S406, it is determined that the failure reason is the failure of the second camera link.

In the embodiment of the invention, when the failure type of the second camera link failure and the failure type of the second camera without data stream exist simultaneously in the acquisition period, the failure type indicates that the failure type is the second camera link failure, and therefore, the failure cause can be determined to be the second camera link failure.

Step S407, determining whether a failure type that the third camera has no data stream exists in the acquisition period.

In the embodiment of the present invention, when it is determined that the failure of the second camera link and the failure of the second camera without data stream do not exist simultaneously in the acquisition period, it indicates that the second camera link can work normally, and therefore, a further determination of the failure cause is required.

In the embodiment of the present invention, when it is determined that a failure type that the third camera has no data stream exists in the acquisition period, step S408 is executed; and executing step S409 when it is determined that the fault type of no data stream of the third camera does not exist in the acquisition period.

Step S408, it is determined that the cause of the failure is a failure of the third camera.

In the embodiment of the present invention, when it is determined that the type of the failure that the third camera has no data stream exists in the acquisition period, the determination condition in the step S405 is combined, that is, when the third camera link has no failure, it indicates that there is a high possibility that the corresponding third camera has a failure.

And step S409, determining that the monitoring system works normally.

In the embodiment of the present invention, when it is determined that the failure type that the third camera has no data stream does not exist in the acquisition period, it is indicated that all the camera links have data communication, and the monitoring system is in a normal working state.

In the embodiment of the present invention, the specific step of determining the cause of the fault can be represented by a nand gate logic diagram, and the nand gate logic diagram refers to fig. 5.

Fig. 5 is a nand gate logic diagram of a method for determining a failure cause according to an embodiment of the present invention.

The nand gate logic diagram provided in the embodiment of the present invention corresponds to the step flow diagram for determining the failure cause shown in fig. 4, where when the failure type of the optical fiber link, no data stream in the optical fiber link, the failure of the first camera link, and no data stream in the first camera exists in the acquisition period, the input of the corresponding failure type is true or 1, otherwise, the input is no or 0.

Fig. 6 is a flowchart illustrating steps of a monitoring system fault diagnosis method according to another embodiment of the present invention, which is described in detail below.

In the embodiment of the present invention, the difference from the step flow chart of the monitoring system fault diagnosis method shown in fig. 2 is that:

before determining the fault cause according to the fault type existing in the acquisition period in the step S203, the method further includes:

step S601, determining the stably existing fault type according to the fault types existing in a plurality of acquisition periods.

The step S203 determines a fault cause according to the fault type existing in the acquisition period, and specifically includes:

step S602, determining the fault reason according to the stably existing fault type.

In the embodiment of the invention, the fault type existing in each acquisition period can be determined, so that the existing fault type can be determined through the results of a plurality of acquisition periods.

In the embodiment of the present invention, compared with the method shown in fig. 2 in which the fault cause is determined according to the fault type existing in one cycle, the method in the embodiment of the present invention determines the fault cause by using the fault types stably existing in multiple cycles, so that the accuracy of the determination is greatly improved.

In the embodiment of the present invention, please refer to fig. 7 for a step of determining a stably existing fault type according to fault types existing in a plurality of acquisition periods.

Fig. 7 is a flowchart illustrating the steps for determining the type of fault that is present steadily, in accordance with another embodiment of the present invention, as described in detail below.

In an embodiment of the present invention, the step of determining a stably existing fault type according to fault types existing in multiple acquisition cycles specifically includes:

step S701, determining whether a first fault type exists in each of the plurality of acquisition cycles.

In an embodiment of the present invention, the first failure type includes a failure of an optical fiber link, no data flow of the optical fiber link, a failure of a first camera link, and no data flow of the first camera.

In the embodiment of the present invention, when it is determined that the first fault type exists in each of the plurality of acquisition cycles, step S702 is executed; and when it is determined that the first fault type does not exist in all of the plurality of acquisition periods, executing step S703.

In step S702, it is determined that the first failure type is a stably existing failure type.

In the embodiment of the present invention, when the first fault type exists in each of the plurality of acquisition cycles, it indicates that the first fault type exists stably, that is, it may be determined that the first fault type exists stably.

In step S703, it is determined that the first failure type is not a stably existing failure type.

Fig. 8 is a flowchart illustrating steps of a monitoring system fault diagnosis method according to another embodiment of the present invention, which is described in detail below.

In the embodiment of the present invention, the difference from the step flowchart of the monitoring system fault diagnosis method shown in fig. 2 is that:

before the step S201 collects a plurality of signals of the optical port of the optical transceiver and a plurality of signals of the first electrical port in a collection period according to a preset collection frequency, the method further includes:

step S801, collecting a power failure signal of the optical transceiver and a power failure signal of the commercial power.

The step S202 determines the type of fault existing in the acquisition period according to the acquired multiple signals of the optical port and the multiple signals of the first electrical port, and specifically includes:

step S802, determining the fault type existing in the acquisition period according to the acquired multiple signals of the optical port, the multiple signals of the first electrical port, the optical transceiver power failure signal and the mains supply power failure signal.

In the embodiment of the present invention, the fault types further include a mains power failure and an optical transceiver power failure.

Compared with the monitoring system fault diagnosis method shown in fig. 2, the monitoring system fault diagnosis method provided by the embodiment of the invention additionally collects the mains supply power failure information and the optical transmitter and receiver power failure signal, and effectively expands the range of recognizable fault types.

Fig. 9 is a flowchart of the steps for determining the type of fault in another embodiment of the present invention, which is described in detail below.

In the embodiment of the present invention, the difference from the flowchart of the step of determining the fault type shown in the embodiment of fig. 3 is that: the step flow chart for determining the fault type shown in the embodiment of the invention also comprises the step of determining whether the fault type of the mains supply power failure exists or not and whether the fault type of the optical transceiver power failure exists or not.

The following steps S901 to S903 specifically give a flow of steps for determining whether there is a failure type of the mains power failure.

Step S901, determining whether the collected mains power down signal is an output high level.

In the embodiment of the invention, the mains supply power failure signal is used for indicating whether the mains supply is powered down. The signal is output by the mains supply power failure detection device. The detection device can be an independent sensor, or can be a power supply module powered by double power supplies (mains supply and battery double power supply), and a power-off signal is output by the power supply module. When the signal outputs high level, the mains supply power failure is indicated, and the power failure reason may be that the mains supply power failure occurs or the detection device is damaged.

In the embodiment of the present invention, when it is determined that the collected commercial power down signal is an output high level, step S902 is executed; and executing step S903 when the collected commercial power failure signal is judged not to be the output high level.

And S902, determining the fault type of the mains supply power failure in the acquisition period.

And step S903, determining that the fault type of the mains supply power failure does not exist in the acquisition period.

The following steps S901 to S903 specifically give a flow of steps for determining whether there is a failure type of the optical transceiver in power down.

Step S904, determining whether the collected optical transceiver power failure signal is an output high level.

In the embodiment of the present invention, the signal is an operating voltage of the optical transceiver. When the signal outputs a high level, it indicates that the optical transceiver is in power failure, and the failure cause may be a power failure of the commercial power or a damage of the optical transceiver.

In the embodiment of the present invention, when it is determined that the collected power failure signal of the optical transceiver is an output high level, step S905 is executed; and executing step S906 when it is determined that the collected power failure signal of the optical transceiver is not an output high level.

Step S905, determining the fault type of the optical transceiver power failure in the acquisition period.

Step S906, determining that the fault type of the optical transceiver without power failure does not exist in the acquisition period.

Fig. 10 is a flowchart of the steps for determining the cause of a fault according to another embodiment of the present invention, which is described in detail below.

In the embodiment of the present invention, the difference from the step flow of determining the cause of the fault shown in the embodiment of fig. 4 is that:

before the step S401 determines whether there is a fiber link failure, no data stream in the fiber link, and a failure type of no data stream in all cameras in the acquisition period at the same time, the method further includes:

and S1001, judging whether the failure types of mains supply power failure and optical transceiver power failure exist simultaneously in the acquisition period.

In the embodiment of the present invention, the reason for the power failure of the utility power may be a failure of a device for detecting the power failure of the utility power, so that it is necessary to comprehensively determine whether the power failure of the utility power and the power failure of the optical transceiver exist at the same time.

In the embodiment of the present invention, when it is determined that the failure type of the commercial power failure and the power failure of the optical transceiver exist simultaneously in the acquisition period, step S1002 is executed; and executing step S1003 when the failure types of the mains supply power failure and the optical transceiver power failure do not exist simultaneously in the acquisition period.

And step S1002, determining that the fault reason is mains supply power failure.

Step S1003, determining whether there is a failure type of power down of the optical transceiver in the acquisition period.

In the embodiment of the present invention, since the failure types of the mains power failure and the power failure of the optical transceiver do not exist simultaneously in the acquisition period, it is indicated that the failure reason is not the mains power failure, and therefore further determination is required.

In the embodiment of the present invention, when it is determined whether the failure type of the optical transceiver caused by power failure exists in the acquisition period, step S1004 is executed, and when it is determined that the failure type of the optical transceiver caused by power failure does not exist in the acquisition period, step S401 is executed.

Step S1004, determining that the failure cause is an optical transceiver failure.

In the embodiment of the present invention, compared with the step flow chart shown in fig. 4 for determining the failure cause, the method for determining the failure cause of the optical fiber link and the camera link is additionally added before the failure of the optical fiber link and the camera link is determined, so that the types of the determinable failure causes are expanded.

In the embodiment of the present invention, the specific step of determining the cause of the fault can be represented by a nand gate logic diagram, and the nand gate logic diagram refers to fig. 11.

Fig. 11 is a nand gate logic diagram of a method for determining a cause of a fault according to another embodiment of the present invention.

The nand gate logic diagram provided in the embodiment of the present invention corresponds to the step flow diagram for determining the failure cause shown in fig. 10, where when there are failure types of a mains power failure, a power failure of an optical transmitter and receiver, a failure of an optical fiber link, no data stream in the optical fiber link, a failure of a first camera link, and no data stream in the first camera in the acquisition period, the input of the corresponding failure type is true or 1, otherwise, the input is no or 0.

Fig. 12 is a schematic structural diagram of a monitoring system fault diagnosis device according to an embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown.

In the embodiment of the present invention, the monitoring system fault diagnosis apparatus includes a signal acquisition unit S1101, a fault type determination unit S1102, and a fault cause determination unit S1103.

The signal acquisition unit S1101 is configured to acquire a plurality of signals of the optical port of the optical transceiver and a plurality of signals of the first electrical port in an acquisition period according to a preset acquisition frequency.

As a preferred embodiment of the present invention, since the video monitoring server randomly sends commands to the cameras and also generates data streams with relatively short duration, in order to improve the accuracy of the determination, it is preferable that each acquisition cycle has a length of 3-10T_actSampling frequency F_sIs 2-4F_act。

The fault type determining unit S1102 is configured to determine a fault type existing in the acquisition period according to the acquired multiple signals of the optical port and the multiple signals of the first electrical port.

The fault cause determining unit S1103 is configured to determine a fault cause according to a fault type existing in the acquisition period.

The monitoring system diagnosis device provided by the embodiment of the invention can be used for determining the existing fault type according to the signals by acquiring the signals of the optical port and the electrical port of the optical transceiver and determining the corresponding fault reason according to the existing fault type, so that the finally diagnosed fault reason is more accurate through two-stage fault diagnosis. The embodiment of the invention provides a simple and effective monitoring system fault diagnosis method, and in addition, the method does not need to occupy the IP address of the video network monitoring network, so that the method has high application value and popularization value for the video network monitoring system with the shortage of IP address resources.

An embodiment of the present invention provides a computer apparatus, which includes a processor, and the processor is configured to implement the steps of the monitoring system diagnosis method provided in the embodiment illustrated in fig. 2 to 10 when executing a computer program stored in a memory.

Illustratively, a computer program can be partitioned into one or more modules, which are stored in memory and executed by a processor to implement the present invention. One or more of the modules may be a sequence of computer program instruction segments for describing the execution of a computer program in a computer device that is capable of performing certain functions. For example, the computer program may be divided into the steps of the monitoring system diagnostic method provided by the various method embodiments described above.

Those skilled in the art will appreciate that the above description of a computer apparatus is by way of example only and is not intended to be limiting of computer apparatus, and that the apparatus may include more or less components than those described, or some of the components may be combined, or different components may be included, such as input output devices, network access devices, buses, etc.

The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like which is the control center for the computer device and which connects the various parts of the overall computer device using various interfaces and lines.

The memory may be used to store the computer programs and/or modules, and the processor may implement various functions of the computer device by running or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.

The modules/units integrated by the computer device may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, electrical signals, software distribution medium, and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A method of fault diagnosis for a monitoring system, the method comprising the steps of:

determining a fault reason according to the fault type existing in the acquisition period;

the step of determining the type of fault existing in the acquisition period according to the acquired plurality of signals of the optical port and the acquired plurality of signals of the first electrical port specifically includes:

judging whether the collected multiple signals of the optical port have optical port output high level or not;

when judging that the optical port output high level exists in the plurality of collected signals of the optical port, determining the fault type without the optical fiber link fault in the collection period;

when judging that the optical port output high level does not exist in the plurality of collected signals of the optical port, determining the fault type of the optical fiber link fault existing in the collection period;

calculating the optical port signal turnover frequency of the plurality of collected signals of the optical port;

judging whether the optical port signal turnover frequency is not less than the preset signal frequency during normal data transmission;

when the optical port signal turnover frequency is judged to be not less than the preset signal frequency in normal data transmission, determining that no fault type of optical fiber link without data stream exists in the acquisition period;

when the optical port signal turnover frequency is judged to be smaller than the preset signal frequency in normal data transmission, determining the fault type of no data stream of the optical fiber link existing in the acquisition period;

judging whether a first electric port output high level exists in the collected multiple signals of the first electric port;

when the first electric port output high level exists in the collected multiple signals of the first electric port, determining that the fault type of the first camera link fault does not exist in the collection period;

when judging that the first electric port does not output high level in the collected multiple signals of the first electric port, determining that a fault type of a first camera link fault exists in the collection period;

calculating a first electric port signal turnover frequency of the collected multiple signals of the first electric port;

judging whether the first electric port signal turnover frequency is not less than a preset signal frequency during normal data transmission;

when the first electric port signal turnover frequency is judged to be not less than the preset signal frequency during normal data transmission, determining that the fault type of no data stream of the first camera does not exist in the acquisition period;

and when the first electric port signal turnover frequency is judged to be smaller than the preset signal frequency during normal data transmission, determining that the fault type of the first camera without data stream exists in the acquisition period.

2. The method according to claim 1, wherein the step of determining the cause of the fault according to the type of fault existing in the acquisition period specifically comprises:

judging whether the fault type of the optical fiber link, the data stream-free optical fiber link and the data stream-free video cameras exist simultaneously in the acquisition period;

when the failure type that the optical fiber link fails, the optical fiber link has no data stream and all the cameras have no data stream is judged to exist in the acquisition period, determining that the failure reason is the optical fiber link failure;

when judging that the fault types of the optical fiber link, the optical fiber link and all the cameras have no data stream simultaneously exist in the acquisition period, judging whether the fault types of all the cameras having no data stream exist in the acquisition period or not;

when judging that the fault type without data stream exists in all the cameras in the acquisition period, determining the fault reason as the fault of the optical transceiver;

when judging that all the cameras have the fault type without data stream in the acquisition period, judging whether a link fault of a second camera and the fault type without data stream of the second camera exist simultaneously in the acquisition period;

when judging that the failure type of the second camera link and the failure type of the second camera without data stream exist simultaneously in the acquisition period, determining that the failure reason is the failure of the second camera link;

when judging that the link fault of the second camera and the fault type of no data stream of the second camera exist simultaneously in the acquisition period, judging whether the fault type of no data stream of the third camera exists in the acquisition period;

when the fault type that the third camera has no data stream is judged to exist in the acquisition period, determining that the fault reason is the fault of the third camera;

and when the fault type that no data stream of the third camera exists in the acquisition period is judged, determining that the monitoring system works normally.

3. The method according to claim 1, wherein before the step of determining the cause of the fault according to the type of fault existing in the acquisition period, the method further comprises:

determining a stably existing fault type according to the fault types existing in a plurality of acquisition periods;

the step of determining the fault cause according to the fault type existing in the acquisition period specifically includes:

and determining the fault reason according to the stably existing fault type.

4. The method according to claim 3, wherein the step of determining the stably existing fault type according to the fault types existing in the plurality of acquisition periods specifically comprises:

judging whether a first fault type exists in the plurality of acquisition periods;

when a first fault type exists in a plurality of acquisition periods, determining that the first fault type is a stably existing fault type;

when the first fault type does not exist in the plurality of acquisition cycles, determining that the first fault type is not a stably existing fault type.

5. The method according to claim 1, wherein before the step of collecting the plurality of signals of the optical port and the plurality of signals of the first electrical port of the optical transceiver in a collection period according to a preset collection frequency, the method further comprises:

collecting a power failure signal and a mains supply power failure signal of an optical transmitter and receiver;

and determining the fault type existing in the acquisition period according to the acquired multiple signals of the optical port, the acquired multiple signals of the first electrical port, the optical transmitter and receiver power failure signal and the mains supply power failure signal.

6. A monitoring system fault diagnosis apparatus, characterized in that the apparatus comprises:

the fault cause determining unit is used for determining a fault cause according to the fault type existing in the acquisition period;

7. A computer arrangement comprising a memory and a processor, characterized in that the memory has stored therein a computer program which, when executed by the processor, causes the processor to carry out the steps of the monitoring system fault diagnosis method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, causes the processor to carry out the steps of the monitoring system fault diagnosis method according to one of claims 1 to 5.