CN106081958A - A kind of derrick crane on-line monitoring system - Google Patents

Abstract

The invention discloses a kind of derrick crane on-line monitoring system, including field monitoring module, abnormality alarming module and control centre, affiliated abnormality alarming module is connected with control centre, described field monitoring module is connected with control centre by network, control centre connects data base, and described control centre is connected with network service by network interface.The present invention by existing equipment and software application to derrick crane on-line monitoring system, wherein field monitoring module can monitor all processes and the step of tower crane operation the most accurately, and the signal monitored is passed to control centre by wireless communication module, whether the classification of the signal that control centre can be received by analysis and signal be within safety range, thus judge whether to start abnormality alarming module, it is achieved thereby that derrick crane operation is by comprehensively, monitor in real time, eliminate the potential safety hazard of derrick crane operation.

Description

A kind of derrick crane on-line monitoring system

Technical field

The present invention relates to derrick crane safety management system field, be specifically related to a kind of derrick crane on-line monitoring system System.

Background technology

In correlation technique, the security monitoring of derrick crane is typically all and uses on derrick crane and tower lifting Installing some photographic head in the job area of machine, photographic head is connected with the computer of Control Room by data wire, and staff is led to Cross observation computer on handling situations to judge that working environment is the most dangerous, therefore can not monitor tower accurately, comprehensively, timely Hidden danger during formula crane job.

Summary of the invention

In order to solve the problems referred to above, it is desirable to provide a kind of derrick crane on-line monitoring system.

The purpose of the present invention realizes by the following technical solutions:

A kind of derrick crane on-line monitoring system, including field monitoring module, abnormality alarming module and control centre, institute Belonging to abnormality alarming module to be connected with control centre, described field monitoring module is connected with control centre by network, control centre Connecting and have data base, described control centre is connected with network service by network interface.

The invention have the benefit that the present invention by existing equipment and software application to derrick crane on-line monitoring system System, wherein field monitoring module can monitor all processes and the step of tower crane operation the most accurately, and will be monitored To signal be passed to control centre by wireless communication module, the classification of the signal that control centre can be received by analysis with And whether signal is within safety range, thus judge whether to start abnormality alarming module, it is achieved thereby that derrick crane is made Industry, by comprehensively, monitors in real time, eliminates the potential safety hazard of derrick crane operation, thus solves above-mentioned technical problem.

Accompanying drawing explanation

The invention will be further described to utilize accompanying drawing, but the application scenarios in accompanying drawing does not constitute any limit to the present invention System, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain according to the following drawings Other accompanying drawing.

Fig. 1 is the structural representation of the present invention.

Fig. 2 is the structural representation of health status monitoring instrument of the present invention.

Reference:

Field monitoring module 1, abnormality alarming module 2, control centre 3, job safety monitor 4, health status monitoring instrument 5, state data acquisition unit 51, data normalization unit 52, main member assessment unit 53, main member health condition judging Unit 54, derrick crane comprehensive assessment unit 55.

Detailed description of the invention

In conjunction with following application scenarios, the invention will be further described.

Application scenarios 1

Seeing Fig. 1, Fig. 2, the derrick crane on-line monitoring system in an embodiment of this application scene, including scene Monitoring modular 1, abnormality alarming module 2 and control centre 3, affiliated abnormality alarming module 2 is connected with control centre 3, described scene Monitoring modular 1 is connected with control centre 3 by network, and control centre 3 connects has data base, described control centre 3 to pass through network Interface is connected with network service.

The present embodiment by existing equipment and software application to derrick crane on-line monitoring system, wherein field monitoring mould Block 1 can monitor all processes and the step of tower crane operation the most accurately, and passes through wireless by the signal monitored Whether communication module is passed to control centre 3, the classification of the signal that control centre 3 meeting is received and signal by analysis in peace Within gamut, thus judge whether to start abnormality alarming module 2, it is achieved thereby that derrick crane operation is by comprehensively, in real time Ground monitoring, eliminates the potential safety hazard of derrick crane operation, thus solves above-mentioned technical problem.

Preferably, described field monitoring module 1 includes job safety monitor 4, and job safety monitor 4 connects display Screen, angular transducer, amplitude sensor, inclination sensor, air velocity transducer and Load Sensor.

This preferred embodiment can show handling situations by display screen, further increases the safety of operation.

Preferably, described abnormality alarming unit connects angled hold tightly display lamp, amplitude alarm lamp, inclination report to the police Display lamp, wind speed alarm lamp and lifting alarm lamp.

This preferred embodiment uses various alarm lamps to show different alarm signals, it is simple to staff checks, improves The safety of system.

Preferably, described field monitoring module 1 also includes that health status monitoring instrument 5, described health status monitoring instrument 5 include State data acquisition unit 51, data normalization unit 52, main member assessment unit 53, main member health condition judging list Unit 54 and derrick crane comprehensive assessment unit 55；Described state data acquisition unit 51 is for gathering the state of derrick crane Monitoring Data also determines acquisition index, and described acquisition index includes derrick crane corresponding main member, main member Monitoring project and each monitoring project weight factor in significance level；Described data normalization unit 52 is for described shape State Monitoring Data is normalized；Described main member assessment unit 53 is for assessing the healthy shape of described main member State, whether described main member health condition judging unit 54 is in health status for described each main member；Described tower Crane integrated assessment unit 55 is for assessing the health status of each derrick crane.

This preferred embodiment constructs the overall architecture of health status monitoring instrument 5, the perfect health status analysis of system Function.

Preferably, if main member x has m_xIndividual monitoring project, uses monitoring instrument α to supervise i-th monitoring project During survey, i=1 ... m_x, owing to the impact of temperature and humidity may produce monitoring variable error, introduce temperature correction factor ψ_αWith Humidity modifying factor Φ_α,Wherein T is monitoring instrument α ring when being monitored monitoring project Border temperature, T₀With when monitoring for monitoring instrument α be suitable for standard temperature,Wherein H is monitor Ambient humidity when monitoring project is monitored by device α, H₀The standard humidity being suitable for when monitoring for monitoring instrument α, described data The normalized formula that normalization unit 52 uses is:

$G_i=1-e^{-\frac{1}{2}\·\left|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}\·{\mathrm{\Φ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}\right|}$

Wherein, G_iExpression i-th monitoring project is normalized the status monitoring amount after process, G_i∈ [0,1], works as G_iNear 0 Time represent in good condition, G_iNear 1 time, represent that state is poor；J_iFor the original state state monitoring variable of i-th monitoring project, δ_biIt is i-th Individual monitoring project is in normal envelope and corresponding to boundary value during optimum state, δ_ciJust it is in for i-th monitoring project Often state range but boundary value when being not belonging to optimum state.

This preferred embodiment devises the normalized formula of data normalization unit 52, is all become by different monitoring variables Change between 0 to 1 and there is identical normal with abnormal border, facilitating the subsequent treatment of Condition Monitoring Data, and at normalizing Change processes and introduces temperature correction factor and humidity modifying factor in formula, simplifies the process of normalized, improves normalizing The precision that change processes.

Preferably, if the status monitoring quantity set after affecting all normalization of main member x state is combined into { G_i, i= 1,...,m_x, health status index Z of the main member x that main member assessment unit 53 is taked_xComputing formula be set as:

If all G_i≤1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_x}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_x}{\Σ}}{Q}_i=1$

If an at least G_i>1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_c}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_c}{\Σ}}{Q}_i=1$

Wherein, Ζ_xRepresent the health state evaluation index of main member x, Z_i∈[0,1],1-e^-0.5For the shape after normalization State monitoring variable corresponds to normal marginal value, m_cFor the status monitoring amount after normalization less than marginal value 1-e^-0.5Time number, Q_i For the weight factor in i-th monitoring project significance level in main member x, m_c＜ m_xTime, weight factor Q_iWith m_c? Number difference is scaled.

This preferred embodiment proposes the computing formula of the evaluation index of main member health status, by different normalization After monitoring variable all transform between 0 to 1 and there is identical normal with abnormal border, such that it is able to simply obtain all sidedly The health status of main member, simplifies the assessment of the health status of main member, improves strong while ensureing accuracy The speed of health state estimation.

Preferably, the decision principle of described main member health condition judging unit 54 is: if main member x state is abnormal Probability P_xMore than threshold value P set_Y, it is determined that described main member x is abnormal, if the probability P that main member x state is abnormal_xNo More than threshold value P set_Y,P_YSpan be [0.1,0.2], it is determined that described main member x is healthy, is provided with n sample Comprehensive state index Z of main member_x1,...,Z_xnTake from continuous distribution H (Z_x), described main member x is in abnormal state Probability P_xComputing formula be:

$P_x=1-\frac{{\∫}_{e^{-1}}^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}{{\∫}_0^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}$

Herein

${\hat{H}}_n\left(Z_x\right)=\frac{1}{n}\·\frac{n^{1/5}}{1.6\mathrm{\φ}}\·\underset{k=1}{\overset{n}{\Σ}}\frac{1}{\sqrt{2\mathrm{\π}}}{e}^{-\frac{1}{2}\·(Z_x-Z_k)\·\frac{n^{1/5}}{1.6\mathrm{\φ}}}$

Wherein,For arbitrfary point Z_xThe cuclear density at place,B is sample standard deviation, and J is four points Figure place spacing.

This preferred embodiment by the abnormal probability calculation result of main member being judged the health status of main member, Analysis precision is high, and the speed that the health status accelerating main member is analyzed.

Preferably, if derrick crane has N number of main member, it is P that main member x is in the probability of abnormal state_x, its Middle x=1,2 ..., N, the computing formula of the comprehensive state health indicator B that described derrick crane comprehensive assessment unit 55 uses is such as Under:

$B=1-{\mathrm{\Σ}}_{x=1}^N\left(P_x{W}_x\right),{\mathrm{\Σ}}_{x=1}^N{W}_x=1$

In formula, W_xFor the weight factor of x-th main member significance level in transformer station, set threshold value E, if B > E, Then transformer station belongs to health status, and the span of E is [0.9,0.99].

This preferred embodiment exploitation right repeated factor calculates the health status of derrick crane, and computational accuracy is high, carries further High system monitoring precision.

In this application scenarios, above-described embodiment takes P_Y=0.1, E=0.9, the monitoring of system is analyzed speed and is relatively improved 10%, monitoring analysis precision improves 12% relatively.

Application scenarios 2

Seeing Fig. 1, Fig. 2, the derrick crane on-line monitoring system in an embodiment of this application scene, including scene Monitoring modular 1, abnormality alarming module 2 and control centre 3, affiliated abnormality alarming module 2 is connected with control centre 3, described scene Monitoring modular 1 is connected with control centre 3 by network, and control centre 3 connects has data base, described control centre 3 to pass through network Interface is connected with network service.

The present embodiment by existing equipment and software application to derrick crane on-line monitoring system, wherein field monitoring mould Block 1 can monitor all processes and the step of tower crane operation the most accurately, and passes through wireless by the signal monitored Whether communication module is passed to control centre 3, the classification of the signal that control centre 3 meeting is received and signal by analysis in peace Within gamut, thus judge whether to start abnormality alarming module 2, it is achieved thereby that derrick crane operation is by comprehensively, in real time Ground monitoring, eliminates the potential safety hazard of derrick crane operation, thus solves above-mentioned technical problem.

Preferably, described field monitoring module 1 includes job safety monitor 4, and job safety monitor 4 connects display Screen, angular transducer, amplitude sensor, inclination sensor, air velocity transducer and Load Sensor.

This preferred embodiment can show handling situations by display screen, further increases the safety of operation.

Preferably, described abnormality alarming unit connects angled hold tightly display lamp, amplitude alarm lamp, inclination report to the police Display lamp, wind speed alarm lamp and lifting alarm lamp.

This preferred embodiment uses various alarm lamps to show different alarm signals, it is simple to staff checks, improves The safety of system.

Preferably, described field monitoring module 1 also includes that health status monitoring instrument 5, described health status monitoring instrument 5 include State data acquisition unit 51, data normalization unit 52, main member assessment unit 53, main member health condition judging list Unit 54 and derrick crane comprehensive assessment unit 55；Described state data acquisition unit 51 is for gathering the state of derrick crane Monitoring Data also determines acquisition index, and described acquisition index includes derrick crane corresponding main member, main member Monitoring project and each monitoring project weight factor in significance level；Described data normalization unit 52 is for described shape State Monitoring Data is normalized；Described main member assessment unit 53 is for assessing the healthy shape of described main member State, whether described main member health condition judging unit 54 is in health status for described each main member；Described tower Crane integrated assessment unit 55 is for assessing the health status of each derrick crane.

This preferred embodiment constructs the overall architecture of health status monitoring instrument 5, the perfect health status analysis of system Function.

Preferably, if main member x has m_xIndividual monitoring project, uses monitoring instrument α to supervise i-th monitoring project During survey, i=1 ... m_x, owing to the impact of temperature and humidity may produce monitoring variable error, introduce temperature correction factor ψ_αWith Humidity modifying factor Φ_α,Wherein T is monitoring instrument α ring when being monitored monitoring project Border temperature, T₀With when monitoring for monitoring instrument α be suitable for standard temperature,Wherein H is monitor Ambient humidity when monitoring project is monitored by device α, H₀The standard humidity being suitable for when monitoring for monitoring instrument α, described data The normalized formula that normalization unit 52 uses is:

$G_i=1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}\·{\mathrm{\Φ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2}$

Wherein, G_iExpression i-th monitoring project is normalized the status monitoring amount after process, G_i∈ [0,1], works as G_iNear 0 Time represent in good condition, G_iNear 1 time, represent that state is poor；J_iFor the original state state monitoring variable of i-th monitoring project, δ_biIt is i-th Individual monitoring project is in normal envelope and corresponding to boundary value during optimum state, δ_ciJust it is in for i-th monitoring project Often state range but boundary value when being not belonging to optimum state.

This preferred embodiment devises the normalized formula of data normalization unit 52, is all become by different monitoring variables Change between 0 to 1 and there is identical normal with abnormal border, facilitating the subsequent treatment of Condition Monitoring Data, and at normalizing Change processes and introduces temperature correction factor and humidity modifying factor in formula, simplifies the process of normalized, improves normalizing The precision that change processes.

Preferably, if the status monitoring quantity set after affecting all normalization of main member x state is combined into { G_i, i= 1,...,m_x, health status index Z of the main member x that main member assessment unit 53 is taked_xComputing formula be set as:

If all G_i≤1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_x}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_x}{\Σ}}{Q}_i=1$

If an at least G_i>1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_c}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_c}{\Σ}}{Q}_i=1$

Wherein, Ζ_xRepresent the health state evaluation index of main member x, Z_i∈[0,1],1-e^-0.5For the shape after normalization State monitoring variable corresponds to normal marginal value, m_cFor the status monitoring amount after normalization less than marginal value 1-e^-0.5Time number, Q_i For the weight factor in i-th monitoring project significance level in main member x, m_c＜ m_xTime, weight factor Q_iWith m_c? Number difference is scaled.

This preferred embodiment proposes the computing formula of the evaluation index of main member health status, by different normalization After monitoring variable all transform between 0 to 1 and there is identical normal with abnormal border, such that it is able to simply obtain all sidedly The health status of main member, simplifies the assessment of the health status of main member, improves strong while ensureing accuracy The speed of health state estimation.

Preferably, the decision principle of described main member health condition judging unit 54 is: if main member x state is abnormal Probability P_xMore than threshold value P set_Y, it is determined that described main member x is abnormal, if the probability P that main member x state is abnormal_xNo More than threshold value P set_Y,P_YSpan be [0.1,0.2], it is determined that described main member x is healthy, is provided with n sample Comprehensive state index Z of main member_x1,...,Z_xnTake from continuous distribution H (Z_x), described main member x is in abnormal state Probability P_xComputing formula be:

$P_x=1-\frac{{\∫}_{e^{-1}}^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}{{\∫}_0^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}$

Herein

${\hat{H}}_n\left(Z_x\right)=\frac{1}{n}\·\frac{n^{1/5}}{1.6\mathrm{\φ}}\·\underset{k=1}{\overset{n}{\Σ}}\frac{1}{\sqrt{2\mathrm{\π}}}{e}^{-\frac{1}{2}\·(Z_x-Z_k)\·\frac{n^{1/5}}{1.6\mathrm{\φ}}}$

Wherein,For arbitrfary point Z_xThe cuclear density at place,B is sample standard deviation, and J is four points Figure place spacing.

This preferred embodiment by the abnormal probability calculation result of main member being judged the health status of main member, Analysis precision is high, and the speed that the health status accelerating main member is analyzed.

Preferably, if derrick crane has N number of main member, it is P that main member x is in the probability of abnormal state_x, its Middle x=1,2 ..., N, the computing formula of the comprehensive state health indicator B that described derrick crane comprehensive assessment unit 55 uses is such as Under:

$B=1-{\mathrm{\Σ}}_{x=1}^N\left(P_x{W}_x\right),{\mathrm{\Σ}}_{x=1}^N{W}_x=1$

In formula, W_xFor the weight factor of x-th main member significance level in transformer station, set threshold value E, if B > E, Then transformer station belongs to health status, and the span of E is [0.9,0.99].

This preferred embodiment exploitation right repeated factor calculates the health status of derrick crane, and computational accuracy is high, carries further High system monitoring precision.

In this application scenarios, above-described embodiment takes P_Y=0.12, E=0.92, the monitoring of system is analyzed speed and is relatively carried High by 9%, monitoring analysis precision improves 13% relatively.

Application scenarios 3

Seeing Fig. 1, Fig. 2, the derrick crane on-line monitoring system in an embodiment of this application scene, including scene Monitoring modular 1, abnormality alarming module 2 and control centre 3, affiliated abnormality alarming module 2 is connected with control centre 3, described scene Monitoring modular 1 is connected with control centre 3 by network, and control centre 3 connects has data base, described control centre 3 to pass through network Interface is connected with network service.

The present embodiment by existing equipment and software application to derrick crane on-line monitoring system, wherein field monitoring mould Block 1 can monitor all processes and the step of tower crane operation the most accurately, and passes through wireless by the signal monitored Whether communication module is passed to control centre 3, the classification of the signal that control centre 3 meeting is received and signal by analysis in peace Within gamut, thus judge whether to start abnormality alarming module 2, it is achieved thereby that derrick crane operation is by comprehensively, in real time Ground monitoring, eliminates the potential safety hazard of derrick crane operation, thus solves above-mentioned technical problem.

Preferably, described field monitoring module 1 includes job safety monitor 4, and job safety monitor 4 connects display Screen, angular transducer, amplitude sensor, inclination sensor, air velocity transducer and Load Sensor.

This preferred embodiment can show handling situations by display screen, further increases the safety of operation.

Preferably, described abnormality alarming unit connects angled hold tightly display lamp, amplitude alarm lamp, inclination report to the police Display lamp, wind speed alarm lamp and lifting alarm lamp.

This preferred embodiment uses various alarm lamps to show different alarm signals, it is simple to staff checks, improves The safety of system.

Preferably, described field monitoring module 1 also includes that health status monitoring instrument 5, described health status monitoring instrument 5 include State data acquisition unit 51, data normalization unit 52, main member assessment unit 53, main member health condition judging list Unit 54 and derrick crane comprehensive assessment unit 55；Described state data acquisition unit 51 is for gathering the state of derrick crane Monitoring Data also determines acquisition index, and described acquisition index includes derrick crane corresponding main member, main member Monitoring project and each monitoring project weight factor in significance level；Described data normalization unit 52 is for described shape State Monitoring Data is normalized；Described main member assessment unit 53 is for assessing the healthy shape of described main member State, whether described main member health condition judging unit 54 is in health status for described each main member；Described tower Crane integrated assessment unit 55 is for assessing the health status of each derrick crane.

This preferred embodiment constructs the overall architecture of health status monitoring instrument 5, the perfect health status analysis of system Function.

Preferably, if main member x has m_xIndividual monitoring project, uses monitoring instrument α to supervise i-th monitoring project During survey, i=1 ... m_x, owing to the impact of temperature and humidity may produce monitoring variable error, introduce temperature correction factor ψ_αWith Humidity modifying factor Φ_α,Wherein T is monitoring instrument α ring when being monitored monitoring project Border temperature, T₀With when monitoring for monitoring instrument α be suitable for standard temperature,Wherein H is monitor Ambient humidity when monitoring project is monitored by device α, H₀The standard humidity being suitable for when monitoring for monitoring instrument α, described data The normalized formula that normalization unit 52 uses is:

$G_i=1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}\·{\mathrm{\Φ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2}$

Wherein, G_iExpression i-th monitoring project is normalized the status monitoring amount after process, G_i∈ [0,1], works as G_iNear 0 Time represent in good condition, G_iNear 1 time, represent that state is poor；J_iFor the original state state monitoring variable of i-th monitoring project, δ_biIt is i-th Individual monitoring project is in normal envelope and corresponding to boundary value during optimum state, δ_ciJust it is in for i-th monitoring project Often state range but boundary value when being not belonging to optimum state.

This preferred embodiment devises the normalized formula of data normalization unit 52, is all become by different monitoring variables Change between 0 to 1 and there is identical normal with abnormal border, facilitating the subsequent treatment of Condition Monitoring Data, and at normalizing Change processes and introduces temperature correction factor and humidity modifying factor in formula, simplifies the process of normalized, improves normalizing The precision that change processes.

Preferably, if the status monitoring quantity set after affecting all normalization of main member x state is combined into { G_i, i= 1,...,m_x, health status index Z of the main member x that main member assessment unit 53 is taked_xComputing formula be set as:

If all G_i≤1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_x}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_x}{\Σ}}{Q}_i=1$

If an at least G_i>1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_c}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_c}{\Σ}}{Q}_i=1$

Wherein, Ζ_xRepresent the health state evaluation index of main member x, Z_i∈[0,1],1-e^-0.5For the shape after normalization State monitoring variable corresponds to normal marginal value, m_cFor the status monitoring amount after normalization less than marginal value 1-e^-0.5Time number, Q_i For the weight factor in i-th monitoring project significance level in main member x, m_c＜ m_xTime, weight factor Q_iWith m_c? Number difference is scaled.

This preferred embodiment proposes the computing formula of the evaluation index of main member health status, by different normalization After monitoring variable all transform between 0 to 1 and there is identical normal with abnormal border, such that it is able to simply obtain all sidedly The health status of main member, simplifies the assessment of the health status of main member, improves strong while ensureing accuracy The speed of health state estimation.

Preferably, the decision principle of described main member health condition judging unit 54 is: if main member x state is abnormal Probability P_xMore than threshold value P set_Y, it is determined that described main member x is abnormal, if the probability P that main member x state is abnormal_xNo More than threshold value P set_Y,P_YSpan be [0.1,0.2], it is determined that described main member x is healthy, is provided with n sample Comprehensive state index Z of main member_x1,...,Z_xnTake from continuous distribution H (Z_x), described main member x is in abnormal state Probability P_xComputing formula be:

$P_x=1-\frac{{\∫}_{e^{-1}}^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}{{\∫}_0^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}$

Herein

${\hat{H}}_n\left(Z_x\right)=\frac{1}{n}\·\frac{n^{1/5}}{1.6\mathrm{\φ}}\·\underset{k=1}{\overset{n}{\Σ}}\frac{1}{\sqrt{2\mathrm{\π}}}{e}^{-\frac{1}{2}\·(Z_x-Z_k)\·\frac{n^{1/5}}{1.6\mathrm{\φ}}}$

Wherein,For arbitrfary point Z_xThe cuclear density at place,B is sample standard deviation, and J is four points Figure place spacing.

This preferred embodiment by the abnormal probability calculation result of main member being judged the health status of main member, Analysis precision is high, and the speed that the health status accelerating main member is analyzed.

Preferably, if derrick crane has N number of main member, it is P that main member x is in the probability of abnormal state_x, its Middle x=1,2 ..., N, the computing formula of the comprehensive state health indicator B that described derrick crane comprehensive assessment unit 55 uses is such as Under:

$B=1-{\mathrm{\Σ}}_{x=1}^N\left(P_x{W}_x\right),{\mathrm{\Σ}}_{x=1}^N{W}_x=1$

In formula, W_xFor the weight factor of x-th main member significance level in transformer station, set threshold value E, if B > E, Then transformer station belongs to health status, and the span of E is [0.9,0.99].

This preferred embodiment exploitation right repeated factor calculates the health status of derrick crane, and computational accuracy is high, carries further High system monitoring precision.

In this application scenarios, above-described embodiment takes T=0.15, E=0.94, and the monitoring of system is analyzed speed and relatively improved 8%, monitoring analysis precision improves 10% relatively..

Application scenarios 4

Seeing Fig. 1, Fig. 2, the derrick crane on-line monitoring system in an embodiment of this application scene, including scene Monitoring modular 1, abnormality alarming module 2 and control centre 3, affiliated abnormality alarming module 2 is connected with control centre 3, described scene Monitoring modular 1 is connected with control centre 3 by network, and control centre 3 connects has data base, described control centre 3 to pass through network Interface is connected with network service.

The present embodiment by existing equipment and software application to derrick crane on-line monitoring system, wherein field monitoring mould Block 1 can monitor all processes and the step of tower crane operation the most accurately, and passes through wireless by the signal monitored Whether communication module is passed to control centre 3, the classification of the signal that control centre 3 meeting is received and signal by analysis in peace Within gamut, thus judge whether to start abnormality alarming module 2, it is achieved thereby that derrick crane operation is by comprehensively, in real time Ground monitoring, eliminates the potential safety hazard of derrick crane operation, thus solves above-mentioned technical problem.

Preferably, described field monitoring module 1 includes job safety monitor 4, and job safety monitor 4 connects display Screen, angular transducer, amplitude sensor, inclination sensor, air velocity transducer and Load Sensor.

This preferred embodiment can show handling situations by display screen, further increases the safety of operation.

Preferably, described abnormality alarming unit connects angled hold tightly display lamp, amplitude alarm lamp, inclination report to the police Display lamp, wind speed alarm lamp and lifting alarm lamp.

This preferred embodiment uses various alarm lamps to show different alarm signals, it is simple to staff checks, improves The safety of system.

Preferably, described field monitoring module 1 also includes that health status monitoring instrument 5, described health status monitoring instrument 5 include State data acquisition unit 51, data normalization unit 52, main member assessment unit 53, main member health condition judging list Unit 54 and derrick crane comprehensive assessment unit 55；Described state data acquisition unit 51 is for gathering the state of derrick crane Monitoring Data also determines acquisition index, and described acquisition index includes derrick crane corresponding main member, main member Monitoring project and each monitoring project weight factor in significance level；Described data normalization unit 52 is for described shape State Monitoring Data is normalized；Described main member assessment unit 53 is for assessing the healthy shape of described main member State, whether described main member health condition judging unit 54 is in health status for described each main member；Described tower Crane integrated assessment unit 55 is for assessing the health status of each derrick crane.

This preferred embodiment constructs the overall architecture of health status monitoring instrument 5, the perfect health status analysis of system Function.

Preferably, if main member x has m_xIndividual monitoring project, uses monitoring instrument α to supervise i-th monitoring project During survey, i=1 ... m_x, owing to the impact of temperature and humidity may produce monitoring variable error, introduce temperature correction factor ψ_αWith Humidity modifying factor Φ_α,Wherein T is monitoring instrument α ring when being monitored monitoring project Border temperature, T₀With when monitoring for monitoring instrument α be suitable for standard temperature,Wherein H is monitor Ambient humidity when monitoring project is monitored by device α, H₀The standard humidity being suitable for when monitoring for monitoring instrument α, described data The normalized formula that normalization unit 52 uses is:

$G_i=1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}\·{\mathrm{\Φ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2}$

Wherein, G_iExpression i-th monitoring project is normalized the status monitoring amount after process, G_i∈ [0,1], works as G_iNear 0 Time represent in good condition, G_iNear 1 time, represent that state is poor；J_iFor the original state state monitoring variable of i-th monitoring project, δ_biIt is i-th Individual monitoring project is in normal envelope and corresponding to boundary value during optimum state, δ_ciJust it is in for i-th monitoring project Often state range but boundary value when being not belonging to optimum state.

This preferred embodiment devises the normalized formula of data normalization unit 52, is all become by different monitoring variables Change between 0 to 1 and there is identical normal with abnormal border, facilitating the subsequent treatment of Condition Monitoring Data, and at normalizing Change processes and introduces temperature correction factor and humidity modifying factor in formula, simplifies the process of normalized, improves normalizing The precision that change processes.

Preferably, if the status monitoring quantity set after affecting all normalization of main member x state is combined into { G_i, i= 1,...,m_x, health status index Z of the main member x that main member assessment unit 53 is taked_xComputing formula be set as:

If all G_i≤1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_x}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_x}{\Σ}}{Q}_i=1$

If an at least G_i>1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_c}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_c}{\Σ}}{Q}_i=1$

Wherein, Ζ_xRepresent the health state evaluation index of main member x, Z_i∈[0,1],1-e^-0.5For the shape after normalization State monitoring variable corresponds to normal marginal value, m_cFor the status monitoring amount after normalization less than marginal value 1-e^-0.5Time number, Q_i For the weight factor in i-th monitoring project significance level in main member x, m_c＜ m_xTime, weight factor Q_iWith m_c? Number difference is scaled.

This preferred embodiment proposes the computing formula of the evaluation index of main member health status, by different normalization After monitoring variable all transform between 0 to 1 and there is identical normal with abnormal border, such that it is able to simply obtain all sidedly The health status of main member, simplifies the assessment of the health status of main member, improves strong while ensureing accuracy The speed of health state estimation.

Preferably, the decision principle of described main member health condition judging unit 54 is: if main member x state is abnormal Probability P_xMore than threshold value P set_Y, it is determined that described main member x is abnormal, if the probability P that main member x state is abnormal_xNo More than threshold value P set_Y,P_YSpan be [0.1,0.2], it is determined that described main member x is healthy, is provided with n sample Comprehensive state index Z of main member_x1,...,Z_xnTake from continuous distribution H (Z_x), described main member x is in abnormal state Probability P_xComputing formula be:

$P_x=1-\frac{{\∫}_{e^{-1}}^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}{{\∫}_0^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}$

Herein

${\hat{H}}_n\left(Z_x\right)=\frac{1}{n}\·\frac{n^{1/5}}{1.6\mathrm{\φ}}\·\underset{k=1}{\overset{n}{\Σ}}\frac{1}{\sqrt{2\mathrm{\π}}}{e}^{-\frac{1}{2}\·(Z_x-Z_k)\·\frac{n^{1/5}}{1.6\mathrm{\φ}}}$

Wherein,For arbitrfary point Z_xThe cuclear density at place,B is sample standard deviation, and J is four points Figure place spacing.

This preferred embodiment by the abnormal probability calculation result of main member being judged the health status of main member, Analysis precision is high, and the speed that the health status accelerating main member is analyzed.

Preferably, if derrick crane has N number of main member, it is P that main member x is in the probability of abnormal state_x, its Middle x=1,2 ..., N, the computing formula of the comprehensive state health indicator B that described derrick crane comprehensive assessment unit 55 uses is such as Under:

$B=1-{\mathrm{\Σ}}_{x=1}^N\left(P_x{W}_x\right),{\mathrm{\Σ}}_{x=1}^N{W}_x=1$

In formula, W_xFor the weight factor of x-th main member significance level in transformer station, set threshold value E, if B > E, Then transformer station belongs to health status, and the span of E is [0.9,0.99].

This preferred embodiment exploitation right repeated factor calculates the health status of derrick crane, and computational accuracy is high, carries further High system monitoring precision.

In this application scenarios, above-described embodiment takes T=0.18, E=0.98, and the monitoring of system is analyzed speed and relatively improved 11%, monitoring analysis precision improves 9% relatively.

Application scenarios 5

Seeing Fig. 1, Fig. 2, the derrick crane on-line monitoring system in an embodiment of this application scene, including scene Monitoring modular 1, abnormality alarming module 2 and control centre 3, affiliated abnormality alarming module 2 is connected with control centre 3, described scene Monitoring modular 1 is connected with control centre 3 by network, and control centre 3 connects has data base, described control centre 3 to pass through network Interface is connected with network service.

The present embodiment by existing equipment and software application to derrick crane on-line monitoring system, wherein field monitoring mould Block 1 can monitor all processes and the step of tower crane operation the most accurately, and passes through wireless by the signal monitored Whether communication module is passed to control centre 3, the classification of the signal that control centre 3 meeting is received and signal by analysis in peace Within gamut, thus judge whether to start abnormality alarming module 2, it is achieved thereby that derrick crane operation is by comprehensively, in real time Ground monitoring, eliminates the potential safety hazard of derrick crane operation, thus solves above-mentioned technical problem.

Preferably, described field monitoring module 1 includes job safety monitor 4, and job safety monitor 4 connects display Screen, angular transducer, amplitude sensor, inclination sensor, air velocity transducer and Load Sensor.

This preferred embodiment can show handling situations by display screen, further increases the safety of operation.

Preferably, described abnormality alarming unit connects angled hold tightly display lamp, amplitude alarm lamp, inclination report to the police Display lamp, wind speed alarm lamp and lifting alarm lamp.

This preferred embodiment uses various alarm lamps to show different alarm signals, it is simple to staff checks, improves The safety of system.

Preferably, described field monitoring module 1 also includes that health status monitoring instrument 5, described health status monitoring instrument 5 include State data acquisition unit 51, data normalization unit 52, main member assessment unit 53, main member health condition judging list Unit 54 and derrick crane comprehensive assessment unit 55；Described state data acquisition unit 51 is for gathering the state of derrick crane Monitoring Data also determines acquisition index, and described acquisition index includes derrick crane corresponding main member, main member Monitoring project and each monitoring project weight factor in significance level；Described data normalization unit 52 is for described shape State Monitoring Data is normalized；Described main member assessment unit 53 is for assessing the healthy shape of described main member State, whether described main member health condition judging unit 54 is in health status for described each main member；Described tower Crane integrated assessment unit 55 is for assessing the health status of each derrick crane.

This preferred embodiment constructs the overall architecture of health status monitoring instrument 5, the perfect health status analysis of system Function.

Preferably, if main member x has m_xIndividual monitoring project, uses monitoring instrument α to supervise i-th monitoring project During survey, i=1 ... m_x, owing to the impact of temperature and humidity may produce monitoring variable error, introduce temperature correction factor ψ_αWith Humidity modifying factor Φ_α,Wherein T is monitoring instrument α ring when being monitored monitoring project Border temperature, T₀With when monitoring for monitoring instrument α be suitable for standard temperature,Wherein H is monitor Ambient humidity when monitoring project is monitored by device α, H₀The standard humidity being suitable for when monitoring for monitoring instrument α, described data The normalized formula that normalization unit 52 uses is:

$G_i=1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}\·{\mathrm{\Φ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2}$

Wherein, G_iExpression i-th monitoring project is normalized the status monitoring amount after process, G_i∈ [0,1], works as G_iNear 0 Time represent in good condition, G_iNear 1 time, represent that state is poor；J_iFor the original state state monitoring variable of i-th monitoring project, δ_biIt is i-th Individual monitoring project is in normal envelope and corresponding to boundary value during optimum state, δ_ciJust it is in for i-th monitoring project Often state range but boundary value when being not belonging to optimum state.

This preferred embodiment devises the normalized formula of data normalization unit 52, is all become by different monitoring variables Change between 0 to 1 and there is identical normal with abnormal border, facilitating the subsequent treatment of Condition Monitoring Data, and at normalizing Change processes and introduces temperature correction factor and humidity modifying factor in formula, simplifies the process of normalized, improves normalizing The precision that change processes.

Preferably, if the status monitoring quantity set after affecting all normalization of main member x state is combined into { G_i, i= 1,...,m_x, health status index Z of the main member x that main member assessment unit 53 is taked_xComputing formula be set as:

If all G_i≤1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_x}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_x}{\Σ}}{Q}_i=1$

If an at least G_i>1-e^-0.5Time,

$Z_x=\underset{i=1}{\overset{m_c}{\Σ}}(1-e^{-\frac{1}{2}\·|\frac{J_i\·{\mathrm{\ψ}}_{\mathrm{\α}}-{\mathrm{\δ}}_{bi}}{{\mathrm{\δ}}_{bi}-{\mathrm{\δ}}_{ci}}{|}^2})Q_i,\underset{i=1}{\overset{m_c}{\Σ}}{Q}_i=1$

Wherein, Ζ_xRepresent the health state evaluation index of main member x, Z_i∈[0,1],1-e^-0.5For the shape after normalization State monitoring variable corresponds to normal marginal value, m_cFor the status monitoring amount after normalization less than marginal value 1-e^-0.5Time number, Q_i For the weight factor in i-th monitoring project significance level in main member x, m_c＜ m_xTime, weight factor Q_iWith m_c? Number difference is scaled.

This preferred embodiment proposes the computing formula of the evaluation index of main member health status, by different normalization After monitoring variable all transform between 0 to 1 and there is identical normal with abnormal border, such that it is able to simply obtain all sidedly The health status of main member, simplifies the assessment of the health status of main member, improves strong while ensureing accuracy The speed of health state estimation.

Preferably, the decision principle of described main member health condition judging unit 54 is: if main member x state is abnormal Probability P_xMore than threshold value P set_Y, it is determined that described main member x is abnormal, if the probability P that main member x state is abnormal_xNo More than threshold value P set_Y,P_YSpan be [0.1,0.2], it is determined that described main member x is healthy, is provided with n sample Comprehensive state index Z of main member_x1,...,Z_xnTake from continuous distribution H (Z_x), described main member x is in abnormal state Probability P_xComputing formula be:

$P_x=1-\frac{{\∫}_{e^{-1}}^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}{{\∫}_0^1{\hat{H}}_n\left(Z_x\right){\mathrm{dZ}}_x}$

Herein

${\hat{H}}_n\left(Z_x\right)=\frac{1}{n}\·\frac{n^{1/5}}{1.6\mathrm{\φ}}\·\underset{k=1}{\overset{n}{\Σ}}{\frac{1}{\sqrt{2\mathrm{\π}}}}^{-\frac{1}{2}\·(Z_x-Z_k)\·\frac{n^{1/5}}{1.6\mathrm{\φ}}}$

Wherein,For arbitrfary point Z_xThe cuclear density at place,B is sample standard deviation, and J is four points Figure place spacing.

This preferred embodiment by the abnormal probability calculation result of main member being judged the health status of main member, Analysis precision is high, and the speed that the health status accelerating main member is analyzed.

Preferably, if derrick crane has N number of main member, it is P that main member x is in the probability of abnormal state_x, its Middle x=1,2 ..., N, the computing formula of the comprehensive state health indicator B that described derrick crane comprehensive assessment unit 55 uses is such as Under:

$B=1-{\mathrm{\Σ}}_{x=1}^N\left(P_x{W}_x\right),{\mathrm{\Σ}}_{x=1}^N{W}_x=1$

In formula, W_xFor the weight factor of x-th main member significance level in transformer station, set threshold value E, if B > E, Then transformer station belongs to health status, and the span of E is [0.9,0.99].

This preferred embodiment exploitation right repeated factor calculates the health status of derrick crane, and computational accuracy is high, carries further High system monitoring precision.

In this application scenarios, above-described embodiment takes T=0.2, E=0.99, and the monitoring of system is analyzed speed and relatively improved 12%, monitoring analysis precision improves 14% relatively.

Last it should be noted that, use above scene is only in order to illustrate technical scheme, rather than to the present invention The restriction of protection domain, although having made to explain to the present invention with reference to preferred application scene, the ordinary skill people of this area Member should be appreciated that and can modify technical scheme or equivalent, without deviating from technical solution of the present invention Spirit and scope.

Claims (3)

1. a derrick crane on-line monitoring system, is characterized in that, including field monitoring module, abnormality alarming module and control Center, affiliated abnormality alarming module is connected with control centre, and described field monitoring module is connected with control centre by network, control Center processed connects data base, and described control centre is connected with network service by network interface.

A kind of derrick crane on-line monitoring system the most according to claim 1, is characterized in that, described field monitoring module Including job safety monitor, job safety monitor connects has display screen, angular transducer, amplitude sensor, inclination to sense Device, air velocity transducer and Load Sensor.

A kind of derrick crane on-line monitoring system the most according to claim 2, is characterized in that, described abnormality alarming unit Upper connection is angled holds display lamp, amplitude alarm lamp, inclination alarm lamp, wind speed alarm lamp and lifting tightly Alarm lamp.