CN105139575A - Transmission line icing dancing monitoring and early warning device and method - Google Patents

Abstract

The invention discloses a transmission line icing dancing monitoring and early warning device and method. The device comprises a power supply control unit, an upper computer unit, a meteorological data processing unit, an icing model processing unit, a power grid information screening unit, a data integrated processing control unit and a remote early warning unit. According to the invention, a weather information acquisition module in the meteorological data processing unit acquires real-time weather data of the position of a transmission wire, and transmits the data to the icing model processing unit used for calculating an icing model; the icing model processing unit can send a calculation result to a dancing trip risk factor module to calculate the dancing probability when the wire surface is iced; transmission wire icing monitoring do not need a large number of sensors, so that the sensors are prevented from being damaged by bad field weather and other reasons; and wire surface icing monitoring and dancing monitoring are combined, so that an icing dancing monitoring result of the whole transmission line is accurate and reliable.

Description

A kind of powerline ice-covering waves monitoring warning device and method

Technical field

The present invention relates to electric power transmission line security fields, particularly relate to a kind of powerline ice-covering and wave monitoring warning device and method.

Background technology

Along with the development of industrial productivity, it is more and more frequent that the transmission line of electricity of long distance also occurs, so the safety of field transmission line of electricity just becomes all the more important; To the wire security threat of field circuit maximum be the large phenomenon of conductive line surfaces icing and conductor galloping two, but, traditional but has problems to the monitoring method of this two large phenomenon of transmission line of electricity, on the one hand, traditional powerline ice-covering is predicted that the parameter such as icing quality, ice covering thickness obtained is difficult to be applied directly to and is waved in risk profile, general all by conductive line surfaces icing and the separately monitoring of conductor galloping two kinds of phenomenons, also increase the difficulty of monitoring while adding monitoring device; On the other hand, when monitoring conductive line surfaces icing phenomenon, traditional method on wire transmission circuit, arranges a large amount of sensor devices carry out image data and predict, first, the installation of sensor is cumbersome; Secondly, there will be the phenomenon that particular sensor can damage because of the rugged surroundings in field unavoidably, cause monitoring result inaccurate, thus heavy losses are caused to transmission line of electricity.

Summary of the invention

A kind of powerline ice-covering is the object of the present invention is to provide to wave monitoring warning device and method, in order to solve the traditional increase monitoring device method that transmission line wire surface icing and conductor galloping two kinds of phenomenons are separately monitored brought and the problem of monitoring difficulty, also solve in traditional method the problem needing to use large quantity sensor simultaneously.

In order to solve the problem, the present invention by the following technical solutions:

A kind of powerline ice-covering waves monitoring warning device, comprises power control unit, host computer unit, process meteorological data unit, icing model treatment unit, electric network information screening unit and aggregation of data processing and control element (PCE);

Described power control unit is used for powering to process meteorological data unit, icing model treatment unit, electric network information screening unit and aggregation of data processing and control element (PCE);

Described host computer unit is used for providing electrical network configurations information;

Described process meteorological data unit comprises real-time weather information acquisition module and A/D modular converter, real-time weather information acquisition module is for gathering real-time weather data, and A/D modular converter is for changing and sending the real-time weather data that real-time weather information acquisition module collects;

Described icing model treatment unit is for calculating the icing information of conductive line surfaces;

Described electric network information screening unit comprises electric network data memory module and electric network data screening module, and electric network data memory module is for storing electrical network configurations information, and electric network data screening module is for screening electrical network configurations information;

Described aggregation of data processing and control element (PCE) comprises display module, data store sending module and wave trip risk coefficient module, the data processed result that display module stores sending module for showing data and waves trip risk coefficient module, data store sending module for accepting to store and sending data, wave trip risk coefficient module for calculating the value of conductor galloping probability;

The output terminal of described host computer unit connects the input end of electric network information screening unit, the output terminal of real-time weather information acquisition module connects the input end of A/D modular converter, the output terminal of A/D modular converter connects the input end of icing model treatment unit, the output terminal of electric network data memory module connects the input end of electric network data screening module, the output terminal of electric network data screening module is connected with the input end that the output terminal of icing model treatment unit all stores sending module with data, the output terminal that data store sending module connects the input end waving trip risk coefficient module, the output terminal that data store sending module is all connected with the input end of display module with the output terminal waving trip risk coefficient module.

Described real-time weather information acquisition module comprises temperature collecting device, humidity collector, wind speed harvester and rainfall amount harvester.

Also comprise distant early warning unit, described distant early warning unit is made up of wireless transmitter module and acousto-optic alarm module, and described wireless transmitter module is all connected with the output terminal waving trip risk coefficient module with the input end of acousto-optic alarm module.

Also comprise remote monitoring unit, described remote monitoring unit comprises remote monitoring main frame and Mobile phone with function of remote monitoring.

Described wireless transmitter module can adopt 4G module or WIFI module.

Described icing model treatment unit adopts Makkonen model, and described Makkonen model is:

Δm＝πα ₁α ₂α ₃wvDΔh/2；

$\mathrm{\Δ}b\left(h\right)=\frac{D_1\left(h\right)}{2}\×(\sqrt{1+\frac{4\mathrm{\Δ}m\left(h\right)}{1000{\mathrm{\πL\ρ}}_1{D}_i^2\left(h\right)}}-1);$

D _i(h ₀+Δh)＝D _i(h ₀)+2Δb(h)；

Δ m is icing quality rate of growth, a ₁for collision coefficient, a ₂for collection coefficient, a ₃for freezing fraction, w is liquid-water content, and the unit of w is g/m ³, v is wind speed, and the unit of v is m/s, h is environment temperature, and the unit of h is DEG C, and D is transmission line of electricity wire diameter, and the unit of D is mm; D _i(h ₀) for being h in environment dimension ₀time transmission line of electricity wire diameter; When Δ b (h) is Δ h for being variable quantity in environment temperature, the wire diameter variable quantity of transmission line of electricity;

Described trip risk coefficient module of waving adopts as drag:

$P(v_i,T)=\underset{t_i=1}{\overset{T}{\Σ}}k\·f\left(t_i\right)\·v_i^a;$

In formula, P (v _i, t) for powerline ice-covering waves trip risk coefficient, v _ibe the mean wind speed of the i-th hour, T is the time meeting the condition that icing is waved, t _ifor the icing moment of the i-th hour, k is transmission line galloping strength factor, f (t _i) for the unit time is to the factor of influence waving risk factor, a is that wind speed is to the factor of influence waving risk factor;

Wave the factor of influence f (t of risk factor _i) be:

$f\left(t_i\right)=1-\frac{1}{2\sqrt{2\mathrm{\π}}}\underset{0}{\overset{t_i}{\∫}}{e}^{-\frac{{(t-6)}^2}{8}}dt;$

Factor of influence f (the t of risk factor will be waved _i) substitute into icing and wave the expression formula that trip risk Modulus Model can obtain transmission line galloping trip risk coefficient and be:

$P(v_i,T)=\underset{t_i=1}{\overset{T}{\Σ}}0.0025\·(1-\frac{1}{2\sqrt{2\mathrm{\π}}}\underset{0}{\overset{t_i}{\∫}}{e}^{-\frac{{(t-6)}^2}{8}}dt)\·v_r^2.$

A kind of powerline ice-covering that monitoring warning device carries out waves monitoring and pre-alarming method to utilize above-mentioned a kind of powerline ice-covering to wave, and comprises the following steps:

The first step: opening power, host computer unit selects monitored area;

Second step: host computer unit provides the electrical network configurations information of monitored area to electric network information screening unit, electric network data memory module in electric network information screening unit accepts and stores electrical network configurations information, simultaneously, send electrical network configurations information to electric network data screening module, the electrical network configurations information that electric network data screening module filters out icing model treatment unit to be needed also delivers to icing model treatment unit;

3rd step: the real-time weather information acquisition module in process meteorological data unit gathers the real-time Weather information data in monitored area, temperature collecting device gathers real time temperature information, the real-time humidity information of humidity collector collection, the wind speed information that the collection of wind speed harvester is real-time, the rainfall amount information that the collection of rainfall amount harvester is real-time;

4th step: Weather information data are sent to A/D modular converter after collecting real-time weather information by real-time weather information acquisition module, the analogue value signal of the temperature that real-time weather information acquisition module collects by A/D modular converter, humidity, wind speed and rainfall amount information is digital signal, and these digital signals are sent to icing model treatment unit;

5th step: after icing model treatment unit receives electric network data screening module and the electrical network configurations information that sends respectively of A/D modular converter and real-time weather information, utilize icing model to calculate the icing situation on transmission pressure surface, and the result of calculating sent to data to store sending module;

6th step: data store sending module and accept and store the result of calculation of the icing situation on transmission pressure surface, and result of calculation is sent to display module and wave trip risk coefficient module, wave trip risk coefficient module and calculate waving trip risk coefficient and trip risk coefficient will be waved and being transferred on display unit and showing of transmission pressure.

First, the present invention utilizes the Weather information acquisition module in process meteorological data unit to gather the real-time weather data in orientation, transmission pressure place, and the icing model treatment unit these data are transferred to for calculating icing model, result of calculation can send to by icing model treatment unit waves probability when waving trip risk coefficient module thus calculate conductive line surfaces icing, on the one hand, do not need to arrange a large amount of sensors again during monitoring transmission pressure icing, prevent sensor to damage due to reasons such as field inclement weathers; On the other hand, and monitoring can be waved well combine the monitoring of conductive line surfaces icing, make the icing of whole transmission line of electricity wave monitoring result more accurately credible; Secondly, the present invention additionally uses wireless transmitter module and acousto-optic alarm module, on the one hand, when monitoring transmission line of electricity and occurring that the probability that icing is waved is greater than standard value, just can send sound and light alarm, reminds staff to note, prevents staff undetected; On the other hand, wireless transmitter module can also send monitor data by 4G module or WIFI module to remote monitoring main frame or Mobile phone with function of remote monitoring, prevents staff undetected; Finally, the present invention is also provided with data and stores sending module, and staff can checking monitoring data at any time, for the reinspection in later stage and data statistics bring great convenience.

Accompanying drawing explanation

Fig. 1 is theory diagram of the present invention;

Embodiment

As shown in Figure 1, a kind of powerline ice-covering waves monitoring warning device, comprises power control unit, host computer unit, process meteorological data unit, icing model treatment unit, electric network information screening unit and aggregation of data processing and control element (PCE); Described power control unit is used for powering to process meteorological data unit, icing model treatment unit, electric network information screening unit and aggregation of data processing and control element (PCE); Described host computer unit is used for providing electrical network configurations information;

Described process meteorological data unit comprises real-time weather information acquisition module and A/D modular converter, real-time weather information acquisition module is for gathering real-time weather data, described real-time weather information acquisition module comprises temperature collecting device, humidity collector, wind speed harvester and rainfall amount harvester, A/D modular converter is for changing and sending the real-time weather data that real-time weather information acquisition module collects, due to temperature collecting device, humidity collector, the information that wind speed harvester and rainfall amount harvester collect is simulating signal, but data processing can only processing digital signal, so icing model treatment unit just can be sent to after needing, with A/D modular converter, real-time weather information data simulating signal is converted to digital signal,

Described icing model treatment unit is for calculating the icing information (set up icing model and belong to the state of the art) of conductive line surfaces, and described icing model treatment unit adopts Makkonen model, and Makkonen model is as follows:

Δm＝πα ₁α ₂α ₃wvDΔt/2

$\mathrm{\Δ}b\left(t\right)=\frac{D_1\left(t\right)}{2}\×(\sqrt{1+\frac{4\mathrm{\Δ}m\left(t\right)}{1000{\mathrm{\πL\ρ}}_1{D}_i^2\left(t\right)}}-1)$

D _i(t ₀+Δt)＝D _i(t ₀)+2Δb(t)

Δ m is icing quality rate of growth, a ₁for collision coefficient, a ₂for collection coefficient, a ₃for freezing fraction, w is liquid-water content, and the unit of w is g/m ³, v is wind speed, and the unit of v is m/s, h is environment temperature, and the unit of h is DEG C, and D is transmission line of electricity wire diameter, and the unit of D is mm; D _i(h ₀) for being h in environment dimension ₀time transmission line of electricity wire diameter; When Δ b (h) is Δ h for being variable quantity in environment temperature, the wire diameter variable quantity of transmission line of electricity; Because the ice coating state of conductive line surfaces is only as relevant in Liquid water content, wind speed and environment temperature with the weather conditions of transmission pressure region, input real-time weather data parameters so only need in icing model treatment unit, the ice coating state of conductive line surfaces can be measured accurately;

Described electric network information screening unit comprises electric network data memory module and electric network data screening module, and electric network data memory module is for storing electrical network configurations information, and electric network data screening module is for screening electrical network configurations information;

Described aggregation of data processing and control element (PCE) comprises display module, data store sending module and wave trip risk coefficient module, the data processed result that display module stores sending module for showing data and waves trip risk coefficient module, data store sending module for accepting to store and sending data, wave trip risk coefficient module and wave trip risk coefficient for the icing of computing electric power line, described trip risk coefficient module of waving adopts as drag:

$P(v_i,T)=\underset{t_i=1}{\overset{T}{\Σ}}k\·f\left(t_i\right)\·v_i^a;$

In formula, P (v _i, t) for powerline ice-covering waves trip risk coefficient, v _ibe the mean wind speed of the i-th hour, T is the time meeting the condition that icing is waved, t _ifor the icing moment of the i-th hour, k is transmission line galloping strength factor, f (t _i) for the unit time is to the factor of influence waving risk factor, a is that wind speed is to the factor of influence waving risk factor;

Wave the factor of influence f (t of risk factor _i) be:

$f\left(t_i\right)=1-\frac{1}{2\sqrt{2\mathrm{\π}}}\underset{0}{\overset{t_i}{\∫}}{e}^{-\frac{{(t-6)}^2}{8}}dt;$

Factor of influence f (the t of risk factor will be waved _i) substitute into icing and wave the expression formula that trip risk Modulus Model can obtain transmission line galloping trip risk coefficient and be:

$P(v_i,T)=\underset{t_i=1}{\overset{T}{\Σ}}0.0025\·(1-\frac{1}{2\sqrt{2\mathrm{\π}}}\underset{0}{\overset{t_i}{\∫}}{e}^{-\frac{{(t-6)}^2}{8}}dt)\·v_i^2;$

That waves that trip risk coefficient module utilizes above-mentioned model just can calculate transmission pressure waves trip risk coefficient;

The output terminal of described host computer unit connects the input end of electric network information screening unit, the output terminal of real-time weather information acquisition module connects the input end of A/D modular converter, the output terminal of A/D modular converter connects the input end of icing model treatment unit, the output terminal of electric network data memory module connects the input end of electric network data screening module, the output terminal of electric network data screening module is connected with the input end that the output terminal of icing model treatment unit all stores sending module with data, the output terminal that data store sending module connects the input end waving trip risk coefficient module, the output terminal that data store sending module is all connected with the input end of display module with the output terminal waving trip risk coefficient module, the present invention also comprises distant early warning unit, described distant early warning unit is made up of wireless transmitter module and acousto-optic alarm module, described wireless transmitter module can adopt 4G module or WIFI module, and described wireless transmitter module is all connected with the output terminal waving trip risk coefficient module with the input end of acousto-optic alarm module, also comprise remote monitoring unit, described remote monitoring unit comprises remote monitoring main frame and Mobile phone with function of remote monitoring.

A kind of powerline ice-covering utilizing said apparatus to carry out waves the method for monitoring and warning, comprises the following steps:

The first step: opening power, host computer unit selects monitored area;

Second step: host computer unit provides the electrical network configurations information of monitored area to electric network information screening unit, electric network data memory module in electric network information screening unit accepts and stores electrical network configurations information, simultaneously, send electrical network configurations information to electric network data screening module, electric network data screening module filters out the electrical network configurations information (as transmission line of electricity wire diameter) of icing model treatment unit needs and icing model treatment unit is delivered in it transmission;

3rd step: the monitored area Weather information data that the real-time weather information acquisition module collection in process meteorological data unit is real-time, temperature collecting device gathers real time temperature information, the real-time humidity information of humidity collector collection, the wind speed information that the collection of wind speed harvester is real-time, the rainfall amount information that the collection of rainfall amount harvester is real-time;

4th step: Weather information data are sent to A/D modular converter after collecting real-time weather information by real-time weather information acquisition module, the analogue value signal of the temperature that real-time weather information acquisition module collects by A/D modular converter, humidity, wind speed and rainfall amount information is digital signal, and these digital signals are sent to icing model treatment unit;

5th step: after icing model treatment unit receives electric network data screening module and the electrical network configurations information that sends respectively of A/D modular converter and real-time weather information, utilize icing model to calculate the icing situation on transmission pressure surface, and the result of calculating sent to data to store sending module;

6th step: data store sending module and accept and store the result of calculation of the icing situation on transmission pressure surface, and result of calculation sent to display module and wave trip risk coefficient module, wave trip risk coefficient module and calculate waving trip risk coefficient and trip risk coefficient will be waved and being transferred on display unit and showing of transmission pressure, simultaneously, if wave the trip risk coefficient of waving that trip risk coefficient module calculates to exceed industry specified standard value, sound and light alarm module just gives the alarm to remind staff to process in time, simultaneously, 4G module or WIFI module also can send monitoring information to remote monitoring main frame and Mobile phone with function of remote monitoring, staff is reminded to process in time, prevent and cause unnecessary loss due to the carelessness of staff, also for the reinspection in later stage and data statistics bring great convenience.

First, the present invention utilizes the Weather information acquisition module in process meteorological data unit to gather the real-time weather data in orientation, transmission pressure place, and the icing model treatment unit these data are transferred to for calculating icing model, result of calculation can send to by icing model treatment unit waves probability when waving trip risk coefficient module thus calculate conductive line surfaces icing, on the one hand, do not need to arrange a large amount of sensors again during monitoring transmission pressure icing, prevent sensor to damage due to reasons such as field inclement weathers; On the other hand, and monitoring can be waved well combine the monitoring of conductive line surfaces icing, make the icing of whole transmission line of electricity wave monitoring result more accurately credible; Secondly, the present invention additionally uses wireless transmitter module and acousto-optic alarm module, on the one hand, when monitoring transmission line of electricity and occurring that the probability that icing is waved is greater than standard value, just can send sound and light alarm, reminds staff to note, prevents staff undetected; On the other hand, wireless transmitter module can also send monitor data by 4G module or WIFI module to remote monitoring main frame or Mobile phone with function of remote monitoring, prevents staff undetected; Finally, the present invention is also provided with data and stores sending module, and staff can checking monitoring data at any time, for the reinspection in later stage and data statistics bring great convenience.

Claims (8)

1. powerline ice-covering waves a monitoring warning device, it is characterized in that: comprise power control unit, host computer unit, process meteorological data unit, icing model treatment unit, electric network information screening unit and aggregation of data processing and control element (PCE);

Described power control unit is used for powering to process meteorological data unit, icing model treatment unit, electric network information screening unit and aggregation of data processing and control element (PCE);

Described host computer unit is used for providing electrical network configurations information;

Described process meteorological data unit comprises real-time weather information acquisition module and A/D modular converter, real-time weather information acquisition module is for gathering real-time weather data, and A/D modular converter is for changing and sending the real-time weather data that real-time weather information acquisition module collects;

Described icing model treatment unit is for calculating the icing information of conductive line surfaces;

Described electric network information screening unit comprises electric network data memory module and electric network data screening module, and electric network data memory module is for storing electrical network configurations information, and electric network data screening module is for screening electrical network configurations information;

Described aggregation of data processing and control element (PCE) comprises display module, data store sending module and wave trip risk coefficient module, the data processed result that display module stores sending module for showing data and waves trip risk coefficient module, data store sending module for accepting to store and sending data, wave trip risk coefficient module for calculating the value of conductor galloping probability;

The output terminal of described host computer unit connects the input end of electric network information screening unit, the output terminal of real-time weather information acquisition module connects the input end of A/D modular converter, the output terminal of A/D modular converter connects the input end of icing model treatment unit, the output terminal of electric network data memory module connects the input end of electric network data screening module, the output terminal of electric network data screening module is connected with the input end that the output terminal of icing model treatment unit all stores sending module with data, the output terminal that data store sending module connects the input end waving trip risk coefficient module, the output terminal that data store sending module is all connected with the input end of display module with the output terminal waving trip risk coefficient module.

2. a kind of powerline ice-covering according to claim 1 waves monitoring warning device, it is characterized in that: described real-time weather information acquisition module comprises temperature collecting device, humidity collector, wind speed harvester and rainfall amount harvester.

3. a kind of powerline ice-covering according to claim 1 waves monitoring warning device, it is characterized in that: also comprise distant early warning unit, described distant early warning unit is made up of wireless transmitter module and acousto-optic alarm module, and described wireless transmitter module is all connected with the output terminal waving trip risk coefficient module with the input end of acousto-optic alarm module.

4. a kind of powerline ice-covering according to claim 3 waves monitoring warning device, it is characterized in that: also comprise remote monitoring unit, and described remote monitoring unit comprises remote monitoring main frame and Mobile phone with function of remote monitoring.

5. a kind of powerline ice-covering according to claim 3 waves monitoring warning device, it is characterized in that: described wireless transmitter module can adopt 4G module or WIFI module.

6. a kind of powerline ice-covering according to claim 3 waves monitoring warning device, it is characterized in that: described icing model treatment unit adopts Makkonen model, and described Makkonen model is:

Δm＝πα ₁α ₂α ₃wvDΔh/2；

$\mathrm{\Δ}b\left(h\right)=\frac{D_1\left(h\right)}{2}\×(\sqrt{1+\frac{4\mathrm{\Δ}m\left(h\right)}{1000{\mathrm{\πL\ρ}}_1{D}_i^2\left(h\right)}}-1);$

D _i(h ₀+Δh)＝D _i(h ₀)+2Δb(h)；

Δ m is icing quality rate of growth, a ₁for collision coefficient, a ₂for collection coefficient, a ₃for freezing fraction, w is liquid-water content, and the unit of w is g/m ³, v is wind speed, and the unit of v is m/s, h is environment temperature, and the unit of h is DEG C, and D is transmission line of electricity wire diameter, and the unit of D is mm; D _i(h ₀) for being h in environment dimension ₀time transmission line of electricity wire diameter; When Δ b (h) is Δ h for being variable quantity in environment temperature, the wire diameter variable quantity of transmission line of electricity;

7. a kind of powerline ice-covering according to claim 3 waves monitoring warning device, it is characterized in that: described trip risk coefficient module of waving adopts as drag:

$P(v_i,T)=\underset{t_i=1}{\overset{T}{\Σ}}k\·f\left(t_i\right)\·v_i^a;$

In formula, P (v _i, t) for powerline ice-covering waves trip risk coefficient, v _ibe the mean wind speed of the i-th hour, T is the time meeting the condition that icing is waved, t _ifor the icing moment of the i-th hour, k is transmission line galloping strength factor, f (t _i) for the unit time is to the factor of influence waving risk factor, a is that wind speed is to the factor of influence waving risk factor;

Wave the factor of influence f (t of risk factor _i) be:

$f\left(t_i\right)=1-\frac{1}{2\sqrt{2\mathrm{\π}}}\underset{0}{\overset{t_i}{\∫}}{e}^{-\frac{{(t-6)}^2}{8}}dt;$

Factor of influence f (the t of risk factor will be waved _i) substitute into icing and wave the expression formula that trip risk Modulus Model can obtain transmission line galloping trip risk coefficient and be:

$P(v_i,T)=\underset{t_i=1}{\overset{T}{\Σ}}0.0025\·(1-\frac{1}{2\sqrt{2\mathrm{\π}}}\underset{0}{\overset{t_i}{\∫}}{e}^{-\frac{{(t-6)}^2}{8}}dt)\·v_i^2.$

8. a kind of powerline ice-covering that monitoring warning device carries out waves monitoring and pre-alarming method to utilize a kind of powerline ice-covering described in claim 1 to wave, and comprises the following steps:

The first step: opening power, host computer unit selects monitored area;

Second step: host computer unit provides the electrical network configurations information of monitored area to electric network information screening unit, electric network data memory module in electric network information screening unit accepts and stores electrical network configurations information, simultaneously, send electrical network configurations information to electric network data screening module, the electrical network configurations information that electric network data screening module filters out icing model treatment unit to be needed also delivers to icing model treatment unit;

3rd step: the real-time weather information acquisition module in process meteorological data unit gathers the real-time Weather information data in monitored area, temperature collecting device gathers real time temperature information, the real-time humidity information of humidity collector collection, the wind speed information that the collection of wind speed harvester is real-time, the rainfall amount information that the collection of rainfall amount harvester is real-time;

4th step: Weather information data are sent to A/D modular converter after collecting real-time weather information by real-time weather information acquisition module, the analogue value signal of the temperature that real-time weather information acquisition module collects by A/D modular converter, humidity, wind speed and rainfall amount information is digital signal, and these digital signals are sent to icing model treatment unit;

5th step: after icing model treatment unit receives electric network data screening module and the electrical network configurations information that sends respectively of A/D modular converter and real-time weather information, utilize icing model to calculate the icing situation on transmission pressure surface, and the result of calculating sent to data to store sending module;

6th step: data store sending module and accept and store the result of calculation of the icing situation on transmission pressure surface, and result of calculation is sent to display module and wave trip risk coefficient module, wave trip risk coefficient module and calculate waving trip risk coefficient and trip risk coefficient will be waved and being transferred on display unit and showing of transmission pressure.