CN101163364B - Monitoring system and method for monitoring operation of electric element using the system - Google Patents

Monitoring system and method for monitoring operation of electric element using the system Download PDF

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CN101163364B
CN101163364B CN2006101137539A CN200610113753A CN101163364B CN 101163364 B CN101163364 B CN 101163364B CN 2006101137539 A CN2006101137539 A CN 2006101137539A CN 200610113753 A CN200610113753 A CN 200610113753A CN 101163364 B CN101163364 B CN 101163364B
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surveillance center
electric
temperature
image
temperature parameter
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CN101163364A (en
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张卫平
王景中
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Beijing University of Technology
North China University of Technology
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North China University of Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention discloses a monitoring system and a method of applying the monitoring system to monitor the operation of electric elements. The monitoring system comprises a detector, a controller and a monitoring center. The monitoring center receives temperature parameters information transmitted by the detector and the electric parameter information transmitted by the controller for processing, and then the monitoring center sends the control signal to the controller according to the processed results. The monitoring system also comprises an imaging device which is used for receiving the temperature parameter and electric parameter information transmitted by the monitoring center or the detector and displaying the information in the pattern of two-dimensional image. The detector comprises an infrared detector which can image through electronic scanning; the infrared is used for detecting the infrared radiation signal in the operation of the electric elements; the signal is processed by the monitoring center and then input into an imaging device, thus the monitoring system can directly detect the relationship between the luminous intensity of the arc lamp and the driving current and voltage and accurately detect the parameters such as the arc starting time; moreover, the monitoring system can control the high-efficiency operation of the arc lamp and is applicable to the operation of other electric elements.

Description

Supervisory control system and use the method for this supervisory control system monitoring operation of electric element
Technical field
The present invention relates to the method for a kind of supervisory control system and monitoring operation of electric element thereof, relate in particular to a kind of method of using the operation of arc light imaging technique monitoring arc lamp.
Background technology
Along with the development and the technological progress of society, people are strong day by day to the energy-conservation requirement in industrial production, the social life.Light fixture be our daily life and produce in energy-consuming product commonly used, whether it energy-conservation, it is most important that we are reached energy conservation object.
Arc lamp, HID (discharge of hyperbar intensity) lamp, MH (metal halide) lamp etc., advantage becomes most popular light source owing to have that colour temperature is good, luminous efficiency is high, brightness stability and life-span are long etc., has received increasing concern in family and commercial lighting field.
Can it energy-conservation, and key is the luminous efficiency of the arc light of its generation, and the distribution in arc light temperature field is the direct-vision method of its luminous efficiency of research.At present, measurement and research to the arc light heat efficiency, be main research means mainly with color and its luminous intensity of measurement of observing arc light, this means are measured in visible light wave range, because arc light intensity in visible light wave range is very big, the luminous intensity that measuring equipment records can only reflect moment mean value, can't obtain the whole luminous intensity of transient state arc light and distribute.Also just be difficult to effectively detect and control the operation and the luminous efficiency of arc lamp.
Summary of the invention
The purpose of this invention is to provide a kind of simple, practical supervisory control system and use the method that this supervisory control system is monitored operation of electric element, this system and method can detect and control the efficient operation of arc lamp or other electric component effectively.
The objective of the invention is to be achieved through the following technical solutions:
Supervisory control system of the present invention is used to monitor the operation of electric component, comprises checkout gear, control device and Surveillance center,
Described checkout gear is electrically connected with Surveillance center, is used for detecting the temperature parameter of operation of electric element process, inputs to Surveillance center after handling;
Described control device is electrically connected with control centre, is used for the electric parameter of operation of electric element process is inputed to Surveillance center, and receives the control signal of Surveillance center, the operation of control electric component;
Described Surveillance center, be used for the electric parameter information that the temperature parameter information that transmits according to checkout gear and control device transmit, determine the electric parameter of optimum temperature parameter correspondence, and handle, send control signal according to the result who handles to control device afterwards.
Also comprise display, be used to receive temperature parameter and/or electric parameter information that Surveillance center and/or checkout gear transmit, and show with two dimensional image.
Described checkout gear comprises:
Detector is used for surveying the temperature parameter of operation of electric element process, and handles;
Temperature collecting device is electrically connected with detector, is used to gather the temperature parameter information that detector detects, and inputs to Surveillance center after handling; And/or temperature parameter information inputed to display.
Described detector is an Infrared Detectors, can be by the electronic scanning imaging, and survey the infrared emanation signal in the operation of electric element process, and be that analog electrical signal inputs to temperature collecting device the infrared emanation conversion of signals.
Described electric parameter is a voltage and current, and described control device is according to the voltage and current of the control signal control electric component of Surveillance center.
The method of the above-mentioned supervisory control system monitoring of application of the present invention operation of electric element is characterized in that, comprises step:
A, checkout gear detect the temperature parameter in the operation of electric element process, input to Surveillance center after handling; Control device detects the electric parameter in the operation of electric element process and inputs to Surveillance center;
B, Surveillance center handle the temperature parameter information and the electric parameter information that receive, draw the pairing electric parameter of optimum temperature parameter, afterwards, send control signal according to the result who handles to control device;
C, control device receive control signal, and control the operation of electric component according to control signal.
Also comprise step after described step B or the step C:
D, Surveillance center and/or checkout gear input to display after temperature parameter and/or electric parameter information are handled, and are shown with two dimensional image by display.
Described step D comprises that detector is surveyed the temperature parameter in the operation of electric element process, inputs to temperature collecting device after handling,
Temperature collecting device inputs to display with the analog electrical signal of temperature parameter; And/or,
Temperature collecting device is converted to digital signal with the analog electrical signal of temperature parameter, afterwards digital signal is inputed to Surveillance center, inputs to display after Surveillance center handles.
Among the described step D,
Detector is surveyed infrared emanation signal in the operation of electric element process by the electronic scanning imaging method, and the infrared emanation conversion of signals is become analog electrical signal.
The processing capacity of described Surveillance center comprises, the temperature parameter information that receives is carried out image processing function, and described image processing function comprises at least one item in the following function:
Image filtering: removal of images spot;
Figure image intensifying: increase picture contrast;
The edge strengthens: increase the image border contrast;
Image compares: the difference that shows two width of cloth images;
Isothermal analysis: show isothermal region;
Histogram analysis: provide the histogram of image, in order to the pixel count that shows that each gray scale has;
Regional analysis: the maximum and/or mean value and/or minimum value and/or the histogram that show the fixed zone of picture.
As seen from the above technical solution provided by the invention, supervisory control system of the present invention and use the method for this system monitoring operation of electric element, owing to comprise checkout gear, control device and Surveillance center, the electric parameter information that temperature parameter information that Surveillance center's receiving detection device transmits and control device transmit, and handle, send control signal according to the result who handles to control device afterwards.Can control the operation of electric component according to the electric parameter of optimum temperature parameter correspondence very easily.
Again owing to also comprise display, be used to receive temperature parameter and electric parameter information that Surveillance center or checkout gear transmit, and show with two dimensional image.The situation of change of displays temperature parameter and electric parameter very intuitively, and the two is compared.
Again because checkout gear comprises Infrared Detectors, can be by the electronic scanning imaging, survey the infrared emanation signal in the operation of electric element process, input to display after handling by Surveillance center, can detect the luminous intensity of electric component and the relation between drive current and the voltage intuitively, and the efficient operation of control electric component.
Mainly be applicable to monitoring, also be applicable to the operation of other electric component of monitoring arc lamp.
Description of drawings
Fig. 1 is the structural representation of supervisory control system of the present invention;
Fig. 2 powers up the arc image that 1s obtains constantly for the specific embodiment of the invention;
Fig. 3 powers up the arc image that 5s obtains constantly for the specific embodiment of the invention;
Fig. 4 is the change curve of specific embodiment of the invention electric current in the time 30s that sets;
Fig. 5 is the change curve of specific embodiment of the invention voltage in the time 30s that sets.
Embodiment
Supervisory control system of the present invention, be used to monitor the operation of electric component, its preferable embodiment is, comprise checkout gear, control device and Surveillance center, checkout gear is electrically connected with Surveillance center, be used for detecting the temperature parameter of operation of electric element process, input to Surveillance center after handling; Control device is electrically connected with control centre, is used for the electric parameter of operation of electric element process is inputed to Surveillance center, and receives the control signal of Surveillance center, the operation of control electric component; The electric parameter information that temperature parameter information that Surveillance center is transmitted according to checkout gear and control device transmit is determined the electric parameter of optimum temperature parameter correspondence, and is handled, and sends control signal according to the result who handles to control device afterwards.
As shown in Figure 1, supervisory control system also comprises display, and promptly monitor is used to receive temperature parameter or the electric parameter information that Surveillance center is transmitted, and shows with two dimensional image.Perhaps, receive temperature parameter and electric parameter information that Surveillance center is transmitted simultaneously, and show with two dimensional image simultaneously, can the temperature parameter image and the electric parameter image of electric component be compared.
The temperature parameter information that also can receiving detection device directly transmits, and show with two dimensional image.
Electric component described here is the example description detailed to the present invention with HID (discharge of hyperbar intensity) lamp.
Described Surveillance center uses computer, and the software of establishing in reaching by main frame is realized various controlled function of the present invention.Here also can replace computer with other single-chip microcomputer or PLC etc.
Described checkout gear comprises detector, is used for surveying the temperature parameter of HID lamp running, and handles, and the temperature parameter here mainly is meant the distribution in arc light temperature field, also can be other parameter.
Also comprise temperature collecting device, be electrically connected, be used to gather the temperature parameter information that detector detects, input to Surveillance center after handling with detector; Or temperature parameter information inputed to display; Or input to Surveillance center and display simultaneously.
Described detector is an Infrared Detectors, and by the infrared focus plane material, the front is provided with infrared lens.Can be by the electronic scanning imaging, survey the infrared emanation signal in the operation of electric element process, and be that analog electrical signal inputs to temperature collecting device the infrared emanation conversion of signals.
After temperature collecting device receives the analog electrical signal of infrared emanation, analog electrical signal can be inputed to the monitor display image on the one hand; Can be digital signal with analog signal conversion earlier on the other hand, input to computer, be undertaken inputing to monitor again after the image processing by computer, the image that obtains like this has more visual effect.
Described control device is electrically connected with the high-frequency electronic ballast of HID lamp, is used for the electric parameter of high-frequency electronic ballast running is inputed to Surveillance center, and receives the control signal of Surveillance center, the operation of control high-frequency electronic ballast.Described electric parameter is mainly the time of voltage and current and startup thereof etc., and control device is according to the voltage and current of the control signal control electric component of Surveillance center.
The present invention uses the method for above-mentioned supervisory control system monitoring operation of electric element, may further comprise the steps:
Step 11, checkout gear detect the temperature parameter in the operation of electric element process, input to Surveillance center after handling; Control device detects the electric parameter in the operation of electric element process and inputs to Surveillance center;
Step 12, Surveillance center handle the temperature parameter information and the electric parameter information that receive, draw the pairing electric parameter of optimum temperature parameter, afterwards, send control signal according to the result who handles to control device.
Step 13, control device receive control signal, and control the operation of electric component according to control signal.
When carrying out above-mentioned steps, or after step 11 or after step 12 or after step 13, also carry out
Step 14, Surveillance center input to display after temperature parameter information and electric parameter information are handled individually or simultaneously, are shown with two dimensional image by display.When in display, showing when temperature parameter information and electric parameter information of same, can compare the two intuitively with two dimensional image.
Wherein, temperature parameter information also can be handled without Surveillance center, and directly inputs to display by checkout gear, can alleviate the burden of control centre like this, but its visual effect is not as the image after handling through Surveillance center.
In the step 14, after the temperature parameter in the detector detection operation of electric element process is handled, at first input to temperature collecting device, have temperature collecting device that the analog electrical signal of temperature parameter is inputed to display again.Detector is mainly surveyed infrared emanation signal in the operation of electric element process by the electronic scanning imaging method, and the infrared emanation conversion of signals is become analog electrical signal.
Perhaps, the analog electrical signal of temperature parameter is converted to digital signal, afterwards digital signal is inputed to Surveillance center, input to display after Surveillance center handles by temperature collecting device.
Comprise in the processing capacity of Surveillance center, the temperature parameter information that receives is carried out image processing, the two dimensional image that display is shown is more suitable for people's visual effect.
The present invention is by the relation between arc light infrared thermal imaging technique research arc lamp luminous efficiency and the electric parameter, in order to solve the problem that can't obtain the whole luminous intensity distribution of transient state arc light that the conventional sense means are occurred, collection infrared thermal imaging, video, computer control, image processing and multinomial new and high technologies such as identification and artificial intelligence are the method for comprehensive detection of one, the hot distributions of its energy on-line monitoring arc light production process, for the luminous efficiency that improves arc light provides Control Parameter, and the operation of control arc lamp.
Inventing described arc light imaging is based on infrared imagery technique, and it mainly utilizes the advanced hot sensing technology of infrared focus plane, converts infrared energy to video image that people can see, shows arc light surface temperature difference with different black and white gray scales.Handle, analyze on the basis of heat picture, the outstanding interested content of observer, and then the heat distribution situation of understanding arc light are analyzed the method that improves its heat efficiency.For saving the energy, improve arc lamp useful life, improving process conditions foundation is provided.
The object that any temperature is higher than the absolute temperature zero degree is radiant heat energy all, and thermal imaging system is by measuring this thermal radiation of object, with the heat distribution of the form demonstration object of two-dimentional visual image, and then carries out temperature survey and failure diagnosis.
Si Difen-Boltzmann law is thermal-radiating theoretical foundation, and according to this theory, all band radiancy M of object is directly proportional with the biquadratic of its absolute temperature T, that is:
M=σ×ε×T 4 (1)
σ=5.7 * 10 wherein 8W/m 2K: Si Difen--Boltzmann proportionality coefficient;
ε≤1: the emissivity of object, ε when object is absolute black body=1.
Therefore, can determine its temperature by the radiancy of measuring target.The arc light imaging technique is exactly to realize representing the arc light surface temperature distribution with two dimensional image by the radiancy of measuring arc light, measures its surface temperature distribution zone.
Usually by the direct accounting temperature more complicated of formula (1), we can adopt the temperature calibration technology to realize the conversion of radiancy to temperature.
The method of demarcating is that whole system is tested, and finds out the temperature of black matrix and the relation between the gradation of image value, and we describe this relation with a form, be called the temperature look-up table, use matrix T b[] expression.The a pair of data that the gray value d of corresponding points on blackbody temperature of measuring 1 and the image is constituted are called the demarcation sample, and their pass is t-Tb[d].
Because temperature and radiancy are non-linear relations, therefore, determine the temperature look-up table, and abundant demarcation sample will be arranged.Use Technology of Data Fitting, set up complete temperature look-up table on computers, according to this look-up table target temperature is carried out accurate Calculation then.
During actual the use, every cover system all needs to demarcate with blackbody furnace.During the actual measurement temperature, on the target image arbitrarily the temperature value T of any provide by following formula:
T-Tb[d]×m/ε(2)
Wherein m is a regulatory factor, is used for the adjusting of other factors (such as distance, dust, smog etc.) to the temperature measurement accuracy influence.
Supervising device of the present invention is made detector with the infrared focus plane material, by the electronic scanning imaging.The detector operation wavelength is 0.8~2.0 μ M, be fit to measure the high temperature object, do not need refrigeration, can disturb by anti-high-intensity magnetic field, good stability, detector converts the infrared emanation that receives to the signal of telecommunication, through the image data acquiring device analog electrical signal is become digital signal, be input to computer, pass through software processes again, the form of digitized thermal radiation signal with two dimensional image is presented on the monitor.Utilization Computer Image Processing and mode identification technology are carried out a series of processing and analyses such as filtering, enhancing, regional analysis to heat picture, the image that obtains can store in magnetic recording system, in order to further analyze in the future.The control device design has two-way input and two-way output, the two-way input is gathered arc light drive current and voltage from the high-frequency current ballast, this electric current and voltage and arc light temperature pattern are presented on the screen synchronously, can observe the corresponding relation between drive current and voltage and the arc light luminous intensity so very intuitively, as required, two-way output by controller can be sent control signal to the high-frequency current ballast, controlling and driving electric current and voltage.
The major function of the software systems of control centre is as shown in table 1.
Table 1: software function table
Function Describe
Real-time thermometric Real-time displays temperature arc image, temperature value and driving current value
Input continuously Import continuously and storage arc image and driving current value
The timing input picture Regularly input dynamically shows arc image and driving current value
Real-time analysis The Temperature Distribution and the driving current value in fixed zone drawn in real-time analysis
The point temperature function Can accurately measure the temperature of any arbitrarily
Temperature distribution history The horizontal and vertical temperature distribution history that shows point for measuring temperature
Colour/greyscale transformation Show arc image with pseudo color and gray scale
Annotation of images For arc image adds Chinese note
Image filtering Eliminate the arc image spot
The figure image intensifying Increase the arc image contrast
The edge strengthens Increase the arc image contrast on border
Image relatively The difference that shows two width of cloth arc image
Isothermal analysis Show isothermal region
Histogram analysis Provide the histogram of arc image
Regional analysis Maximum/mean value/minimum value/the histogram that shows the fixed zone of picture
Thermoisopleth Provide isothermal curve to fixed temperature
The image storage General Windows picture format storage
The thermometric report The thermometric report that both pictures and texts are excellent
Control signal output The output two path control signal
The software of control centre can function comprises in the table 1 one or multinomial, can select arbitrarily as required.
Below some main software functions and algorithm are described:
Function 11, image input:
The image input function shows on from the detector input picture to screen in real time.Multiple input modes such as real-time measurement, input continuously, timing input picture, real-time analysis are provided here.
Function 12, observation image:
Observing image mainly is that thermal image figure is carried out temperature survey.When observing image, utilize cursor on image, to move, observe the temperature value on any point and the temperature distribution history of cursor place row and column, can also write down the temperature of a plurality of points with 16 looks.When point for measuring temperature during, revise point for measuring temperature tabulation and point for measuring temperature symbol with queue structure more than 10.When observing image, heat picture is carried out thermoisopleth show with 256 looks.
Function 13, image processing:
Image processing is that image is carried out computing, processing, makes it to satisfy special requirement and reaches special visual effect.The characteristics of heat picture are that it not only has visual effect, and can represent the size of output (temperature value).When heat picture was handled, its visual effect can change, but the amount of its expression should remain unchanged.For reaching this point, system has set up gray scale-temperature transition table, and heat picture will upgrade this conversion table after treatment.By heat picture is handled, can give full play to it and detect automatically and analysis ability, excavate the potential information of image.
At first, suppose Fo (x, y) and Fp (x y) is respectively before and after treatment image function, comprise,
Function 131, image filtering:
Image filtering is similar to the filtering of one-dimensional signal, mainly is meant to remove the noise (showing as some spots) that mixes in the image, has in fact played the smoothing effect to image.
Image filtering adopts medium filtering, and this filtering method does not change the codomain of neighborhood point, and the image after the processing does not influence temperature survey; In addition, because this method does not perform mathematical calculations, speed ratio is very fast.Filter function is:
Fp(x,y)=mid{Fo(x,y),Fo(x,y-1),Fo(x,y+1),Fo(x+1,y),Fo(x+1,y)}
Function 132, edge strengthen:
The image border strengthen be to image process, computing, its profile is highlighted, increase people's visual effect.This processing is easy to the location of fault point.In fact be that the sharpening of image is handled.Here adopt anti-sharpening mask method, its expression formula is:
G(x,y)F(x,y)+c[ΔF(x,y)]
Wherein Δ F (x, y)=F (x, y) F (x y) is the high frequency increment,
Figure G061B3753920061103D000081
Be average.C is a weighted factor.If (x y) is arithmetic mean to Fo, and c-10 then
Corresponding mask is W = 0 - 2 0 - 2 9 - 2 0 - 2 0
Fp(x,y)=9Fo(x,y)-2Fo(x,y-1)-2Fo(x,y+1)-2Fo(x-1,y)-2Fo(x+1,y)
Function 133, gray scale strengthen:
It is that the gray scale of image is carried out the full scale expansion that gray scale strengthens, and making the minimum gray scale of processed images is 0, and the highest gray scale is 255.Its algorithm adopts the linear-scale converter technique.
Function 134, histogram:
The pixel count of histogram in order to show that each gray scale has.Heat distribution in order to the statistics entire image.
Function 135, image compare:
Image relatively is that two width of cloth figure are carried out the logic OR arithmetical operation, and the original image together with input is simultaneously displayed on screen then, so that relatively.The variations in temperature that like this can more same target different times and the temperature contrast of different target.The computing of four width of cloth images is: image and computing (demonstration identical point), image subtract the reverted image of computing (demonstration difference), image XOR (demonstration difference) and image.
Function 136, isothermal distribute:
It is exactly the temperature section that identifies selection that isothermal distributes, and the point of the temperature value that equals in the image to select is identified, and forms isothermal chart and looks like to show.Adopt the gray scale partitioning algorithm, its expression formula is:
Fp ( x , y ) = Fo ( x , y ) Fo ( x , y ) ∈ [ T min , T max ] 0 other
Wherein Tmax and Tmin are the upper and lower bound of the temperature section of selection.
Function 137, image cutting:
The image cutting is pruned image exactly, removes nonuseable part, keeps useful part.Its rudimentary algorithm is:
Fp ( x , y ) = Fo ( x , y ) other 0 x o ≤ x ≤ x 1 v 0 ≤ y ≤ y 1
Wherein (x0 is y0) with (x1 y1) is the upper left corner and the lower right corner of selected rectangle respectively.
Clipping function can use repeatedly, so that cut needed zone.
Function 138, regional analysis:
Regional analysis is to draw the histogram in fixed zone, and maximum temperature, minimum temperature and mean temperature are calculated and shown simultaneously, and can carry out part amplification and local enhancement process to drawing fixed zone.
Function 139, rim detection:
Rim detection is extremely important to the location of high temperature dot.Here adopt rim detection based on wavelet transformation.
Specific embodiment:
Select the HID efficient energy-saving lamp and the high frequency ballast of North China University of Tech's green power supply laboratory development for use.Purpose be to measure understand that HID lamp luminous intensity distributes and and drive current and voltage between relation, measure parameters such as arc light start-up time.Use conventional means, can't obtain intuitively, measurement result accurately.
Detector is aimed at the HID lamp, the electric current of high frequency ballast and voltage are connected to the two-way input of control device through converter.Image input mode is to measure in real time.
As shown in Figure 2, be to power up the arc image that 1s obtains constantly, drive current and the voltage that shows this moment are respectively 1A and 1KV.
As shown in Figure 3, be to power up the arc image that 5s obtains constantly, drive current and the voltage that shows this moment are respectively 1.8A and 2KV.The HID lamp luminous intensity that can visually see distribute and and drive current and voltage between corresponding relation, but also as can be seen start-up time greater than 1s.
Image input mode is switched to continuous input mode, continuous measuring hours is made as 30s, continuous acquisition image and drive current and voltage in the time of setting as Fig. 4, shown in Figure 5, are the change curves of electric current and voltage in the time 30s that sets.By the data analysis to gathering in continuous time, be 3s the start-up time of seeing the HID lamp intuitively, corresponding to the steady moment of image, electric current and voltage.
Arc light imaging and measurement of electric parameter method based on infrared imagery technique, can measure intuitively understand that HID lamp luminous intensity distributes and and drive current and voltage between relation, measure parameters such as arc light start-up time exactly, solved the problem that can't obtain intuitive and accurate measurement result with conventional means.By a large amount of experiments and analysis, can set up the relational model of arc light and driving parameters, the output signal of utilizing arc light imaging and measurement of electric parameter method to provide, the control arc lamp is in low power consumpting state, reaches the purpose of maximum energy-saving.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.

Claims (2)

1. a supervisory control system is used to monitor the operation of electric component, it is characterized in that, comprises checkout gear, control device and Surveillance center,
Described checkout gear is electrically connected with Surveillance center, is used for detecting the temperature parameter of operation of electric element process, inputs to Surveillance center after handling;
Described control device is electrically connected with Surveillance center, is used for the electric parameter of operation of electric element process is inputed to Surveillance center, and receives the control signal of Surveillance center, the operation of control electric component;
Described Surveillance center, be used for the electric parameter information that the temperature parameter information that transmits according to checkout gear and control device transmit, determine the electric parameter of optimum temperature parameter correspondence, and handle, send control signal according to the result who handles to control device afterwards;
This supervisory control system also comprises display, is used to receive temperature parameter and/or electric parameter information that Surveillance center and/or checkout gear transmit, and shows with two dimensional image;
Described checkout gear comprises:
Detector is used for surveying the temperature parameter of operation of electric element process, and handles;
Temperature collecting device is electrically connected with detector, is used to gather the temperature parameter information that detector detects, and inputs to Surveillance center after handling; And/or temperature parameter information inputed to display;
Described detector is an Infrared Detectors, can be by the electronic scanning imaging, and survey the infrared emanation signal in the operation of electric element process, and be that analog electrical signal inputs to temperature collecting device the infrared emanation conversion of signals;
Described electric parameter is a voltage and current, and described control device is according to the voltage and current of the control signal control electric component of Surveillance center.
2. the method for the described supervisory control system monitoring of claim 1 operation of electric element is characterized in that, comprises step:
A, checkout gear detect the temperature parameter in the operation of electric element process, input to Surveillance center after handling; Control device detects the electric parameter in the operation of electric element process and inputs to Surveillance center;
B, Surveillance center handle the temperature parameter information and the electric parameter information that receive, draw the pairing electric parameter of optimum temperature parameter, afterwards, send control signal according to the result who handles to control device;
C, control device receive control signal, and control the operation of electric component according to control signal;
Also comprise step after described step B or the step C:
D, Surveillance center and/or checkout gear input to display after temperature parameter and/or electric parameter information are handled, and are shown with two dimensional image by display;
Described step D comprises that detector is surveyed the temperature parameter in the operation of electric element process, inputs to temperature collecting device after handling,
Temperature collecting device inputs to display with the analog electrical signal of temperature parameter; And/or,
Temperature collecting device is converted to digital signal with the analog electrical signal of temperature parameter, afterwards digital signal is inputed to Surveillance center, inputs to display after Surveillance center handles;
Among the described step D,
Detector is surveyed infrared emanation signal in the operation of electric element process by the electronic scanning imaging method, and the infrared emanation conversion of signals is become analog electrical signal;
The processing capacity of described Surveillance center comprises, the temperature parameter information that receives is carried out image processing function, and described image processing function comprises at least one item in the following function:
Image filtering: removal of images spot;
Figure image intensifying: increase picture contrast;
The edge strengthens: increase the image border contrast;
Image compares: the difference that shows two width of cloth images;
Isothermal analysis: show isothermal region;
Histogram analysis: provide the histogram of image, in order to the pixel count that shows that each gray scale has;
Regional analysis: the maximum and/or mean value and/or minimum value and/or the histogram that show the fixed zone of picture.
CN2006101137539A 2006-10-13 2006-10-13 Monitoring system and method for monitoring operation of electric element using the system Expired - Fee Related CN101163364B (en)

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