CN103995510A - Light amplifier monitoring technology based on SNMP4J - Google Patents

Abstract

The invention discloses a light amplifier monitoring technology based on SNMP4J. An existing light amplifier monitoring technology is old and has the problems that the performance is low, the running speed is low, computer stability is reduced, alarming prompts are not obvious, and alarming information is difficult to find, so that technical server workers cannot easily find abnormal conditions of light amplifiers in the running process in time, and the probability that problems are processed in time is increased. According to a system, data of the light amplifiers are read through an SNMP, the running states of all the light amplifiers are monitored in real time, state parameters of all the light amplifiers are displayed and recorded, abnormality can be found through comparison and an alarm is given, and running maintenance efficiency is improved; a deletion device is additionally arranged, so that feasibility of service expansion is improved; maintenance staff can find problems in time through a user-friendly interface and maintain devices, and therefore management efficiency of the light amplifiers is improved.

Description

Image intensifer monitoring technique based on SNMP4J

Technical field

The present invention relates to image intensifer monitoring technique field.Take J2SE as exploitation basis, by SNMP4J.jar, wrap correlation techniques such as using Simple Network Management Protocol, use Eclipse and MySql as developing instrument, realized image intensifer supervisory system.By the relevant parameters of each image intensifer constantly being read and judging and the abnormal operating condition of each image intensifer is reported to the police and carried out real-time monitoring, reached the object of the problem that each image intensifer of timely discovery occurs in operational process, and by the problem clew occurring to technical attendant, can pinpoint the problems the very first time, deal with problems, thereby make user can normally use the service signal of CHINA RFTCOM Co Ltd.

Background technology

The existing image intensifer monitoring technique age for a long time, exist the lower travelling speed of performance relatively slowly, the stability decreases of computing machine own, alarm not obviously, the problem such as the more difficult discovery of warning message, make technical attendant be difficult for finding in time the abnormality that image intensifer occurs in operational process, thereby improved the possibility of timely processing problem.And along with the development of the new business such as the integration of three networks and new technology, existing supervisory system lacks the extensibility to required new function in future.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of image intensifer monitoring technique based on SNMP4J, the running status of monitor optical amplifier, and timely collecting device information, occurs when abnormal showing that warning information feeds back to maintainer and keeps in repair.

The present invention is achieved through the following technical solutions:

1, the circuit between image intensifer be take Star topology as main, branch center machine room is ring topology each other, image intensifer also keeps having two available cold standby equipment to replace the image intensifer ging wrong, can not guarantee that at present each machine room has enough hot standby image intensifers to transmit and carry out long-range switching signal, need in real time device parameter is read judgement and image intensifer is sent to Trap information, need in each central machine room, prevent that network original paper from carrying out parameter by LAN (Local Area Network) and reading.The structural design, database design, input and output design, processing procedure design and the user-interface design that about the design of this technology, have comprised functional module.

(1) functional structure design facilitates user monitoring equipment as shown in Figure 1.

Node A and B in SNMP structure ₁, B ₂..., B _nconnect, adopt C/S model, A can will pass through B ₁, B ₂..., B _nthe data that gather are assessed; Node B and C ₁, C ₂..., C _nbe connected.Network management is completed alternately by terminal and SNMP agent:

1. terminal is inquired about each agent, and SNMP obtains workstation about the various inquiries of the information of management information bank from agent.

2. agency produces self-trapping information, to terminal, circulates a notice of.

Whole technology is tree structure, by root successively downward monitoring message, and when equipment i layer provides information, the corresponding number of plies of Li assignment:

${\mathrm{sys}}_{\mathrm{services}}={\mathrm{\Σ}}_{i=1}^{\mathrm{Li}}\mathrm{\α}{a}^{(\mathrm{Li}-1)},a=2;---\left(1\right)$

(2) database is realized: use MySql building database, design data structure, writes storing process.The database table of setting up.

Table 1: database table is divided

Eq_Logic	Apparatus logic table
		Eq_Alarm	Equipment alarm information table
Eq_Boundary	Device parameter bound table
		Rm_Name	Machine room namelist
Eq_Run	Equipment table

(3) input and output design: consider that each functional module determines input data according to output data, is contacting whole monitor procedure.

1. realize catching abnormal and time and write in txt notepad, acquisition time also arranges form.

While 2. abnormal information being write into notepad, allocating time parameter is recorded together.

3. write rear call method newline and cache contents is write, so far closing output stream.

The read-write that instructions that it opens specified path has just completed file is passed in the music path that will sound when 4. call method is opened the specified path file importing into and capturing information is reported to the police.

(4) processing procedure design: comprise that whether judge parameter normal, accepting device warning message, record are also preserved parameter, and this is the key of monitoring technique, is the embodiment of function.

1. according to running state parameter X and parameter bound Y, the Z of input, call the module of processing, normal operation be labeled as C, abnormal prompting M.Disposal route is

if X>Z&&X<Y then C＝＝green else＝＝red output M

2. IP address of equipment A calls alarm message module and obtains warning message P.Disposal route is input A if P output P

3. equipment running state parameter X, device attribute P and current time T, call the module that parameter preserved in record, change data table items D, and disposal route is

Read X and input P insert D if X time>(T-30*24*60*60*1000)delete D

4. Trap message initiatively sends message to management end when generation is abnormal, is based on event driven, adopts multithreading to realize here.

A node carries out timing by multithreading to Node B to be observed, and B is also that so establishing the stand-by period is t (n) to C, and processing threads is M, is initially M=1

$t\left(n\right)=\left\{\begin{array}{cc}\frac{\frac{\mathrm{tp}(n-1)}{M}-\mathrm{tr}(n-1)+t(n-1)}{2}& n>1\\ \frac{\mathrm{tp}\left(n\right)}{M}-\mathrm{tr}\left(n\right)& n=1\end{array}\right.---\left(2\right)$

When 0<t (n)≤tr (n), tr (n) <tp (n) so, high-rise node increases for the buffer area of the node poll of lower one deck, need to increase processing threads number: complete like this obtaining the information of a plurality of nodes.

5. in polling time interval, service agent has been sent management role to return to the byte number of required transmission, and it between each node, carries data and result of calculation is transmitted successively, and formula is

$S={\mathrm{\&Sigma;}}_{i=0}^n(B_{d_i}+{\mathrm{\&Sigma;}}_{j=0}^i{B}_{r_j})+(n+1)B_p---\left(3\right)$

the byte number of data and code while leaving node i for service agent; for the result of calculation of Agent on node j; B _pbyte number for inter-node communication agreement relevant information.

(5) user-interface design: interface comprises main interface, interpolation/sweep equipment interface, change equipment alarm threshold value interface, checks historical data interface and help interface.

1. main interface comprises list of devices, equipment essential information, panalarm, warning message.

2. interpolation/sweep equipment interface comprises machine room title, device IP, unit type, affiliated machine room, logical place and detailed description.

9. change equipment alarm threshold value interface and comprise the IP address of the equipment that will arrange, the bound setting of essential information.

4. check that historical data interface is shown by form, comprised the details of equipment, facilitate user's checkout facility abnormal cause.

2, totally whole monitoring technique can be divided into 3 layers: client layer, service layer and information acquisition layer

(1) client layer is responsible for the monitoring of tools information gathering to present to user.

(2) service layer carries out analyzing stored to information, generates warning message while noting abnormalities.

(3) information acquisition layer carries out timing collection to facility information.

Acquisition tasks is divided into five-tuple: Task=(Agent, f, OidSet, FormulaSet, LogicalExpSet), Agent is the corresponding device agency's that will gather information, f is the frequency of tasks carrying, OidSet is the set of the MIB that gathers of task, and FormulaSet is the set that task gathers the formula that variable result calculates, and wherein LogicalExpSet is the expression formula set that task is carried out logic judgement.

For form variable combination, have X collected mib variable, the M that crosses over MIB form is capable, N is listed as it is defined as

M＝Max{j|j＝TABLE_COLOMN_OF_OID(oid)，oid∈OID_SETi}-Min{j|j＝TABLE_COLOMN_OF_OID(old)，oid∈OID_SETi}+1 (4)

N＝Max{j|j＝INSTANCE_OF_OID(oid)，oid∈OID_SETi}-Min{j|j＝INSTANCE_OF_OID(oid)，oid∈OID_SETi}+1 (5)

For mib object path, be 1.3.6.1.2.1.4.31.1.1.3, this node represents to receive the quantity of IP bag; 1.3.6.1.2.1.4.1.31.1.1.17 represent the IP data packet number abandoning, 1.3.6.1.2.1.4.31.1.1.20 represents the quantity of the IP bag that node sends, 1.3.6.1.2.1.4.31.1.1.25 represents the quantity that IP bag abandons.These 4 nodes are stored in a table, deposit the IP package informatin of different editions.

3, the present invention uses snmp management data, collects the parameter needing and arranges, and has mainly divided 4 parts to manage, and comprises analog sensed management, discrete sensor management, the management of output control signal and the management of output signal controlled quentity controlled variable.Here according to HFC computer lab management demand, the parameter region that the needs from distinct device are managed is divided into analog quantity and discrete magnitude is to reach the object that adopts snmp management, data is unified to arrange the MIB definition that is converted into SNMP afterwards.For continually varying data such as the temperature of equipment, humidity, voltages, are analog quantitys, and switching values etc. can be used as discrete magnitude.

(1) analog sensed management

Collect analog sensed amount information, current state that can response sensor itself, during variation to monitoring client transmission Trap signal.

(2) discrete sensor management

Collect discrete sensing amount information, occur extremely to management end, sending Trap signal.

(3) output control signal management

Output control signal is managed, and can be set to output quantity is what enable, also can be for forbidden energy, to changing, also can make a response in time.

(4) output signal controlled quentity controlled variable management

Describe output control signal by which Variable Control, for output signal, derive from analog sensor or discrete sensor can accurately judge.

4, the associated class of SNMP4J and interface

(1) Snmp class: SNMP4J core classes, the reception of being responsible for SNMP message sends.

(2) PDU class: be responsible for structure, treatment S NMP message.

(3) Target interface: corresponding SNMP agent address information, as IP address.

(4) TransportMapping interface: the transport layer protocol that encapsulation SNMP4J is used.

Target indication equipment entity.PDU represents that management end represents the executor of data transmit-receive with the data Snmp of Target communication.

5,, for the relation of network traffics and time, set up one-variable linear regression equation:

Here equipment for whole network when the information of real-time equipment carries out information acquisition and management, variation for network judges in time, for historical data, can be used as training sample, accelerate the time of judgement network state, available range is relatively used Euclidean distance function with sample:

$\sqrt{{({a_1}^{\left(1\right)}-{a_1}^{\left(2\right)})}^2+\&CenterDot;\&CenterDot;\&CenterDot;+{({a_k}^{\left(1\right)}-{a_k}^{\left(2\right)})}^2}---\left(6\right)$

A _k ⁽¹⁾k the attribute that represents first sample, a _k ⁽²⁾k the attribute that represents second sample.

6, the image intensifer monitoring technique based on SNMP4J comprise add and delete monitored equipment, abnormal operating condition threshold value, occur abnormal equipment, equipment warning, check the running state parameter in nearly month.

(1) building database, building method connection data storehouse, operates on it.

(2) all abnormal times of seizure that extremely add that capture that I/O inputs software in operational process are write in corresponding txt notepad file together.

(3) by user, inputted IP address, position, model and the detailed description of the equipment that needs interpolation, or unwanted equipment is deleted, user can decide and change the logical organization between equipment in its sole discretion, and business is expanded.

System comprises adds machine room, deletion machine room, interpolation equipment, four settings of sweep equipment, during interpolation, in database, imports the information that need to add machine room or equipment into, and delet method is similar, and protects stored content of text, passes through interface display.

(4) audiomonitor initialization snmp protocol, first SNMP version is arranged, if the protocol version that equipment is used is 3, level of security is so just set to be defined device security scope name again, after interpolation secured user, version number being set is 3, if it is 1 that equipment is used protocol version, version number is so just set is version1 otherwise be set to version2.

Snmp protocol configuration comprises startup and closes SNMPAGENT serves, arranges the source address that group's name, configuration SNMP group, the contact method that keeper is set, a permission/forbid sending Trap message, the address that Trap destination host is set and appointment send message, the AGENT reception request of acting on behalf of is set, and monitoring SNMP port is verified processing to program.

(5) utilize snmp protocol that the relevant information of image intensifer is read out, circulation in every 30 seconds a time, monitors and the very first time pinpoints the problems, and by the threshold value with user's setting, compares occurring that abnormal problem gives the alarm in time.

1. for realizing this function, the image intensifer of minute machine room need to be passed to total machine room by HFC one-level looped network, then be controlled and recorded ruuning situation by total machine room monitoring system, create multithreading, each thread carries out automatic regular polling to an image intensifer.

2. threshold value arranges definitely according to user, and after reading, with the equipment running status parameter comparison obtaining, running state parameter converts floating type assignment to corresponding floating type variable in member variable, then with character string forms, this parameter is returned.

3. result set data are traveled through, and result the form assignment with floating type, then close database and read after threshold value relatively, the warning message that under equipment, machine room, IP address of equipment and corresponding abnormal data form is shown.

(6) record the running state parameter of nearly month, the information reading from image intensifer is each time stored in database, from database, these information are read out with form and are shown to user.

Create Table Model, the result of importing collection into obtains the data of ranks, and all cells in form all can not be edited.According to the IP address of inquiry, show corresponding status information.

7, compared with prior art, the invention has the beneficial effects as follows and utilize snmp protocol read the data of image intensifer and running status is shown, facilitated the management of technical attendant to equipment, the up-to-date data of equipment that automatic regular polling has upgraded data acquisition.Maintainer can, to the status information of equipment inquiry in nearly month, be conducive to the potential safety hazard of judgment device.Note abnormalities and automatically give the alarm, make the technical attendant very first time pinpoint the problems, deal with problems, promoted operational efficiency.The interpolation delete function of equipment has been expanded the scope of business of system, the equipment of management can be changed as required voluntarily, the interface of hommization is used the faster study more easily of technical attendant, and device data shows the work efficiency that has also improved maintainer clearly.Native system can show non ageing equipment, allows technician know and sees equipment and its residing physical location of inefficacy, thereby solve sooner equipment failure problem.System also provides the function to individual equipment shielding monitoring in addition, to the individually shielded efficiency that improves image intensifer management of unwanted equipment.

Accompanying drawing explanation

Accompanying drawing 1 is for the present invention is based on the design top level diagram of the image intensifer monitoring technique of SNMP4J

Accompanying drawing 2 is for the present invention is based on 1 layer of figure of the image intensifer monitoring technique of SNMP4J

Accompanying drawing 3 is for the present invention is based on 2 layers of figure of the image intensifer monitoring technique of SNMP4J

Accompanying drawing 4 is for the present invention is based on the logical model of the image intensifer monitoring technique of SNMP4J

Accompanying drawing 5 is for the present invention is based on the data flow diagram of the image intensifer monitoring technique of SNMP4J

Embodiment

By reference to the accompanying drawings and embodiment, the image intensifer monitoring technique based on SNMP4J further the present invention being proposed is described, and its Characteristics and advantages is more clearly described.

What the present embodiment mainly completed is the real-time monitoring to image intensifer, in time information is conveyed to maintainer, so that equipment is resolved while going wrong as early as possible.

Implementation step with reference to the image intensifer monitoring technique based on SNMP4J shown in Fig. 1 is as follows:

1, select the device category that will be added, according to it, add the information of image intensifer and calculator room equipment, all device categories that can be added and new image intensifer are shown to user with the form of list;

2, the running state parameter of fetch equipment, by the state parameter write into Databasce of operation, is presented in user interface and checks for maintainer;

3, from database, read the bound of the normal range of running status, input is judged, running state parameter is compared with maximal value and the minimum value of setting, determine whether in normal range;

4, utilize snmp protocol to monitor the warning of image intensifer, equipment is monitored occurring that abnormal data report to the police timely, make maintainer find as early as possible and to process;

5, check the running state parameter of nearly month, according to the IP address of equipment, all running state parameters and warning message in nearly one month of equipment read out, the situation that grasp equipment is recent so that maintainer to the maintenance of equipment with protection.

Above-mentioned comparatively concrete to the description of embodiment, not can be understood as the present invention and only limit to above embodiment, the protection domain of this patent should be as the criterion with claims.

Claims (4)

1. the image intensifer monitoring technique based on SNMP4J, comprise interpolation and delete monitored equipment, abnormal operating condition threshold value, there is abnormal equipment, the warning of equipment, check the running state parameter in nearly month, it is characterized in that based on snmp protocol, image intensifer being carried out to data reads, automatic regular polling carries out real-time record to the running status of each image intensifer, normally whether monitor optical amplifier operation, whether need to safeguard, being presented in user interface facilitates maintainer to pinpoint the problems in time, deal with problems, assurance provides stable service signal for user.

2. the image intensifer monitoring technique based on SNMP4J as claimed in claim 1, the method based on poll when data acquisition is improved, and multithreading process information is characterized in that method is described below:

In invention, in snmp protocol structure, be divided into two kinds of structures: node A and B ₁, B ₂..., B _nconnect, adopt C/S framework, A can will pass through B ₁, B ₂..., B _nthe data that gather are assessed; Node B and C ₁, C ₂..., C _nbe connected.

Step 1: the topology of network can be expressed as non-directed graph G=< N, E >, wherein N is set of node, represents interconnected equipment, E is the annexation between equipment.B _k(k=1,2 ..., n) under again respectively to equipment C _k(k=1,2 ..., n) Information Monitoring.

Step 2: node A judges that C is by extracting sys _servicesobject value is definite, when equipment i layer provides information, and L _ithe corresponding number of plies of assignment:

${\mathrm{sys}}_{\mathrm{services}}={\mathrm{\&Sigma;}}_{i=1}^{\mathrm{Li}}{a}^{(\mathrm{Li}-1)},a=2;$

Step 3: adopt tree structure downward successively from root: be 1.3.6.1.2.1.4.31.1.1.3 for mib object path, this node represents to receive the quantity of IP bag; 1.3.6.1.2.1.4.1.31.1.1.17 represent the IP data packet number abandoning, 1.3.6.1.2.1.4.31.1.1.20 represents the quantity of the IP bag that node sends, 1.3.6.1.2.1.4.31.1.1.25 represents the quantity that IP bag abandons.These 4 nodes are stored in a table, deposit the IP package informatin of different editions.

Step 4: observe because A node carries out timing by multithreading to Node B, B is also so to C, may cause during for the collection of data to receive and the speed of deal with data is not mated, and this just need to arrange the express-analysis of buffer area guarantee information.If the stand-by period is t (n), processing threads is M, is initially M=1

$t\left(n\right)=\left\{\begin{array}{cc}\frac{\frac{\mathrm{tp}(n-1)}{M}-\mathrm{tr}(n-1)+t(n-1)}{2}& n>1\\ \frac{\mathrm{tp}\left(n\right)}{M}-\mathrm{tr}\left(n\right)& n=1\end{array}\right.$

Tr (n) expression thread receives that packet arrives the averaging time of buffer area, and tp (n) represents the averaging time of a packet of each processing threads processing.When 0<t (n)≤tr (n), tr (n) <tp (n) so, high-rise node increases for the buffer area of the node poll of lower one deck, need to increase processing threads number: complete like this obtaining the information of a plurality of nodes.

Step 5: in polling time interval, service agent has been sent management role to return to the byte number of required transmission, and it carries data between each node and result of calculation is transmitted successively, and formula is

$S=\underset{i=0}{\overset{n}{\mathrm{\&Sigma;}}}(B_{d_i}+\underset{j=0}{\overset{i}{\mathrm{\&Sigma;}}}{B}_{r_j})+(n+1)B_p$

the byte number of data and code while leaving node i for service agent; for the result of calculation of Agent on node j; B _pbyte number for inter-node communication agreement relevant information.

3. the image intensifer monitoring technique based on SNMP4J as claimed in claim 1, is characterized in that using method claimed in claim 2 in parameter collection.

4. the image intensifer monitoring technique based on SNMP4J as claimed in claim 1, is characterized in that invention increases inquiry and warning message, and information is fed back to user in time, increases practicality.