CN104093002A - Heat loss detection system and method for steam heat pipeline - Google Patents
Heat loss detection system and method for steam heat pipeline Download PDFInfo
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- CN104093002A CN104093002A CN201410355003.7A CN201410355003A CN104093002A CN 104093002 A CN104093002 A CN 104093002A CN 201410355003 A CN201410355003 A CN 201410355003A CN 104093002 A CN104093002 A CN 104093002A
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Abstract
The invention discloses a heat loss detection system and method for a steam heat pipeline. The heat loss detection system comprises a front-end monitoring system and a monitoring center. The front-end monitoring system comprises multiple infrared thermal imaging modules arranged around the heat pipeline, a temperature sensing module, a video encoder and a video server, wherein the infrared thermal imaging modules are connected with the video server through the video encoder; the video server is connected with the monitoring center through a network; the temperature sensing module is provided with the monitoring center and used for measuring temperatures of measurement points of the steam heat pipeline. According to the heat loss detection system, the temperature sensing module is used for collecting the temperatures of the measurement points, the infrared thermal imaging modules are used for detecting image data, a video encoding module is used for conducting video encoding on image information, the video server is used for transmitting video signals to the monitoring center, and then detection of heat loss of the steam heat pipeline is achieved. Through the heat loss detection system, the heat loss of the steam heat pipeline can be automatically detected and positioned in real time.
Description
Technical field
The present invention relates to heating pipeline thermal loss detection system, relate in particular to a kind of a kind of steam heating pipeline thermal loss detection system and method for utilizing infrared thermal imaging technique.
Background technology
Oil refining enterprise's production scale development grows at present, in oil plant, steam pipe network becomes increasingly complex, steam heating pipeline is crisscross, distributes various, and management difficulty is increased, while is along with heat distribution pipeline is aging, damaged, pipeline external wall insulation material can be in process of production gradually damaged, drop, pipeline external wall temperature increases, and causes a large amount of thermal loss, produce huge energy waste, and increased the operating cost of enterprise.
Along with producing and expanding economy, energy-conservation idea is rooted in the hearts of the people, and the responsibility of energy-conservation Ye Shi of while enterprise, is also conducive to the development of enterprise self.Steam pipeline being carried out to good insulation, reduce its heat loss due to radiation, is the effective way that improves oil-refining chemical Business Economic Benefit.Therefore, provide accurately, timely the thermal loss situation of on-the-spot heating pipeline, for the insulation transformation of steam pipeline, the extremely important effect of having reduced the loss.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and can carry out to steam heating pipeline thermal loss situation a kind of steam heating pipeline thermal loss detection system and the method for automatic, real-time detection and location.
The object of the invention is to be achieved through the following technical solutions:
A kind of steam heating pipeline thermal loss detection system, comprise front end monitoring system and Surveillance center, described front end monitoring system comprises and is arranged at heating pipeline a plurality of infrared thermal imaging modules, temperature sensing module, video encoder and video server around, wherein, infrared thermal imaging module is connected with video server by video encoder, video server is realized and being connected of Surveillance center by network, temperature sensing module is connected with Surveillance center, for measuring steam heating pipeline measurement point temperature.
Described infrared thermal imaging module comprises detector, reading circuit, picture processing chip and external memory storage, wherein, picture processing chip is connected with reading circuit by control interface, external memory storage is connected with picture processing chip by internal data bus, picture processing chip is connected with electric power system by power interface, picture processing chip is connected with video server by video interface, and reading circuit is connected with detector.
Described detector is infrared thermal imagery survey meter.
Described picture processing chip comprises that nonuniformity correction module, blind element correction module, image filtering denoising module, image detail strengthen module, pseudo-color conversion module, analog-to-digital conversion module, low noise power supply module and interface sequence control module;
Described nonuniformity correction module, proofreaies and correct the image after being proofreaied and correct to thermal-induced imagery by two-point method and binary nonlinear correction method;
Described blind element correction module, by adopting blind element backoff algorithm, predicts and substitutes the information of blind element position according to the response correlation of neighbor or front and back two field picture;
Described image filtering denoising module, carries out denoising by Fast Median Filtering and the mean filter with threshold value to thermal-induced imagery, obtains the image after denoising;
Described image detail strengthens module, by adopting dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge to strengthen algorithm, the histogram of original image is processed, and realizes the enhancing function to image;
Described analog-to-digital conversion module, by adopting the design architecture of pipeline ADC, realizes the simulation output high speed analog-to-digital conversion of large array;
Described low noise power supply module, by adopting integrated Boost control circuit, for detector provides compared with high bias voltage, realizes the high responsiveness of Infrared Detectors;
Described interface sequence control module, the method for counting frequency division by employing correctly produces three road clock signals.
Described infrared thermal imaging module encapsulates by wafer scale multiple device package technology.
A steam heating pipeline thermal loss detection method, comprises the steps:
S1. a plurality of infrared thermal imaging modules, temperature sensing module, video encoder and video server in front end monitoring system are arranged on respectively on each measurement point of heating pipeline;
S2. temperature sensing module is measured heating pipeline measurement point temperature, and infrared thermal imaging module is to heating pipeline detection imaging within sweep of the eye and image is processed;
S3. temperature sensing module is sent to Surveillance center by temperature data, and infrared thermal imaging module is sent to video encoding module by the image information after processing;
S4. video encoding module is carried out Video coding to the image information receiving, and obtains high-quality vision signal, by normal video interface, outputs on video server;
S5. video server arrives Surveillance center by communication network by video signal transmission.
The method that described infrared thermal imaging module is processed image, comprises following steps:
S21. picture processing chip provides needed various control clock signal, power supply and bias voltage for detector;
S22. detector is to heating pipeline detection imaging within the vision, and view data is passed to picture processing chip;
S23. picture processing chip comprises that to the thermal-induced imagery of the heating pipeline collecting nonuniformity correction, blind element correction, image filtering denoising, image detail strengthen, the function treatment of pseudo-color conversion;
S24. picture processing chip carries out analog-to-digital conversion to the outer view data of the red heat after processing;
S25. picture processing chip is sent to video encoding module by the image information after processing through video interface;
Described picture processing chip, the method for counting frequency division by employing realizes the correct three road clock signals that produce, and by adopting integrated Boost control circuit, for detector provides compared with high bias voltage, realizes the high responsiveness of Infrared Detectors;
Described nonuniformity correction, realizes the correction to thermal-induced imagery, the image after being proofreaied and correct by two-point method and binary nonlinear correction method;
Described blind element is proofreaied and correct, and by adopting blind element backoff algorithm, according to the response correlation of neighbor or front and back two field picture, the information of blind element position is predicted and is substituted;
Described image filtering denoising, realizes the denoising to thermal-induced imagery by Fast Median Filtering with the mean filter of threshold value, obtains image after denoising;
Described image detail strengthens, and by adopting dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge to strengthen algorithm, the histogram of original image is processed, and realizes the enhancing function to image;
Described picture processing chip, the design architecture of employing pipeline ADC, realizes the simulation of large array and exports high speed analog-to-digital conversion.
The invention has the beneficial effects as follows: by gathering the thermal-induced imagery of steam heating pipeline, can carry out quick diagnosis to pipeline, find in time the abnormal conditions of heat distribution pipeline, accurately location, saves time, highly sensitive, resolution is high, does not need to contact with heat distribution pipeline during measurement, safe and reliable, can work in the dark, not affected by light source power, simple in structure, volume is small and exquisite, low in energy consumption, temperature stability is good, is simple and easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of steam heating pipeline of the present invention thermal loss detection system;
Fig. 2 is infrared thermal imaging inside modules structural representation;
Fig. 3 is a kind of steam heating pipeline of the present invention thermal loss overhaul flow chart.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of steam heating pipeline thermal loss detection system, comprise front end monitoring system and Surveillance center, described front end monitoring system comprises and is arranged at heating pipeline a plurality of infrared thermal imaging modules, temperature sensing module, video encoder and video server around, wherein, infrared thermal imaging module is connected with video server by video encoder, video server is realized and being connected of Surveillance center by network, temperature sensing module is connected with Surveillance center, for measuring steam heating pipeline measurement point temperature.
As shown in Figure 2, infrared thermal imaging module comprises detector, reading circuit, picture processing chip and external memory storage, wherein, picture processing chip is connected with reading circuit by control interface, external memory storage is connected with picture processing chip by internal data bus, picture processing chip is connected with electric power system by power interface, and picture processing chip is connected with video server by video interface, and reading circuit is connected with detector;
Described picture processing chip comprises that nonuniformity correction module, blind element correction module, image filtering denoising module, image detail strengthen module, pseudo-color conversion module, analog-to-digital conversion module, low noise power supply module and interface sequence control module; Described nonuniformity correction module, proofreaies and correct the image after being proofreaied and correct to thermal-induced imagery by two-point method and binary nonlinear correction method;
Described blind element correction module, by adopting blind element backoff algorithm, predicts and substitutes the information of blind element position according to the response correlation of neighbor or front and back two field picture; Described image filtering denoising module, carries out denoising by Fast Median Filtering with the mean filter of threshold value to thermal-induced imagery, obtains image after denoising; Described image detail strengthens module, by adopting dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge to strengthen algorithm, the histogram of original image is processed, and realizes the enhancing function to image; Described analog-to-digital conversion module, by adopting the design architecture of pipeline ADC, realizes the simulation output high speed analog-to-digital conversion of large array; Described low noise power supply module, by adopting integrated Boost control circuit, for detector provides compared with high bias voltage, realizes the high responsiveness of Infrared Detectors; Described interface sequence control module, the method for counting frequency division by employing correctly produces three road clock signals.
As shown in Figure 3, a kind of steam heating pipeline thermal loss detection method, comprises the steps:
S1. a plurality of infrared thermal imaging modules, temperature sensing module, video encoder and video server in front end monitoring system are arranged on respectively on each measurement point of heating pipeline;
S2. temperature sensing module is measured heating pipeline measurement point temperature, and infrared thermal imaging module is to heating pipeline detection imaging within sweep of the eye and image is processed;
S3. temperature sensing module is sent to Surveillance center by temperature data, and infrared thermal imaging module is sent to video encoding module by the image information after processing;
S4. video encoding module is carried out Video coding to the image information receiving, and obtains high-quality vision signal, by normal video interface, outputs on video server;
S5. video server arrives Surveillance center by communication network by video signal transmission;
The method that described infrared thermal imaging module is processed image, comprises following steps:
S21. picture processing chip provides needed various control clock signal, power supply and bias voltage for detector;
S22. detector is to heating pipeline detection imaging within the vision, and view data is passed to picture processing chip;
S23. picture processing chip comprises that to the thermal-induced imagery of the heating pipeline collecting nonuniformity correction, blind element correction, image filtering denoising, image detail strengthen, the function treatment of pseudo-color conversion;
S24. picture processing chip carries out analog-to-digital conversion to the outer view data of the red heat after processing;
S25. picture processing chip is sent to video encoding module by the image information after processing through video interface;
Described picture processing chip, the method for counting frequency division by employing realizes the correct three road clock signals that produce, and by adopting integrated Boost control circuit, for detector provides compared with high bias voltage, realizes the high responsiveness of Infrared Detectors; Described nonuniformity correction, realizes the correction to thermal-induced imagery, the image after being proofreaied and correct by two-point method and binary nonlinear correction method;
Described blind element is proofreaied and correct, and by adopting blind element backoff algorithm, according to the response correlation of neighbor or front and back two field picture, the information of blind element position is predicted and is substituted; Described image filtering denoising, realizes the denoising to thermal-induced imagery by Fast Median Filtering with the mean filter of threshold value, obtains image after denoising; Described image detail strengthens, and by adopting dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge to strengthen algorithm, the histogram of original image is processed, and realizes the enhancing function to image; Described picture processing chip, the design architecture of employing pipeline ADC, realizes the simulation of large array and exports high speed analog-to-digital conversion.
In the present embodiment, described detector is infrared thermal imagery survey meter, and described infrared thermal imaging module encapsulates by wafer scale multiple device package technology.
Claims (7)
1. a steam heating pipeline thermal loss detection system, it is characterized in that: comprise front end monitoring system and Surveillance center, described front end monitoring system comprises a plurality of infrared thermal imaging modules, temperature sensing module, video encoder and the video server that is arranged at heating pipeline, wherein, infrared thermal imaging module is connected with video server by video encoder, video server is realized and being connected of Surveillance center by network, temperature sensing module is connected with Surveillance center, for measuring steam heating pipeline measurement point temperature.
2. a kind of steam heating pipeline thermal loss detection system according to claim 1, is characterized in that: described infrared thermal imaging module comprises detector, reading circuit, picture processing chip and external memory storage; Wherein, picture processing chip is connected with reading circuit by control interface, external memory storage is connected with picture processing chip by internal data bus, picture processing chip is connected with electric power system by power interface, picture processing chip is connected with video server by video interface, and reading circuit is connected with detector.
3. a kind of steam heating pipeline thermal loss detection system according to claim 2, is characterized in that: described detector is infrared thermal imagery survey meter.
4. a kind of steam heating pipeline thermal loss detection system according to claim 2, is characterized in that: described picture processing chip comprises that nonuniformity correction module, blind element correction module, image filtering denoising module, image detail strengthen module, pseudo-color conversion module, analog-to-digital conversion module, low noise power supply module and interface sequence control module;
Described nonuniformity correction module, proofreaies and correct the image after being proofreaied and correct to thermal-induced imagery by two-point method and binary nonlinear correction method;
Described blind element correction module, by adopting blind element backoff algorithm, predicts and substitutes the information of blind element position according to the response correlation of neighbor, front and back two field picture;
Described image filtering denoising module, carries out denoising by Fast Median Filtering with the mean filter of threshold value to thermal-induced imagery, obtains image after denoising;
Described image detail strengthens module, by adopting dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge to strengthen algorithm, the histogram of original image is processed, and realizes the enhancing function to image;
Described analog-to-digital conversion module, by adopting the design architecture of pipeline ADC, realizes the simulation output high speed analog-to-digital conversion of large array;
Described low noise power supply module, by adopting integrated Boost control circuit, for detector provides compared with high bias voltage, realizes the high responsiveness of Infrared Detectors;
Described interface sequence control module, the method for counting frequency division by employing correctly produces three road clock signals.
5. a kind of steam heating pipeline thermal loss detection system according to claim 2, is characterized in that: described infrared thermal imaging module encapsulates by wafer scale multiple device package technology.
6. a steam heating pipeline thermal loss detection method, is characterized in that: comprise the steps:
S1. a plurality of infrared thermal imaging modules, temperature sensing module, video encoder and video server in front end monitoring system are arranged on respectively on each measurement point of heating pipeline;
S2. temperature sensing module is measured heating pipeline measurement point temperature, and infrared thermal imaging module is to heating pipeline detection imaging within sweep of the eye and image is processed;
S3. temperature sensing module is sent to Surveillance center by temperature data, and infrared thermal imaging module is sent to video encoding module by the image information after processing;
S4. video encoding module is carried out Video coding to the image information receiving, and obtains high-quality vision signal, by normal video interface, outputs on video server;
S5. video server arrives Surveillance center by communication network by video signal transmission.
7. a kind of steam heating pipeline thermal loss detection method according to claim 6, is characterized in that: the method that described infrared thermal imaging module is processed image, comprises following steps:
S21. picture processing chip provides needed various control clock signal, power supply and bias voltage for detector;
S22. detector is to heating pipeline detection imaging within the vision, and view data is passed to picture processing chip;
S23. picture processing chip comprises that to the thermal-induced imagery of the heating pipeline collecting nonuniformity correction, blind element correction, image filtering denoising, image detail strengthen, the function treatment of pseudo-color conversion;
S24. picture processing chip carries out analog-to-digital conversion to the outer view data of the red heat after processing;
S25. picture processing chip is sent to video encoding module by the image information after processing through video interface;
Described picture processing chip, the method for counting frequency division by employing realizes the correct three road clock signals that produce, and by adopting integrated Boost control circuit, for detector provides compared with high bias voltage, realizes the high responsiveness of Infrared Detectors;
Described nonuniformity correction, realizes the correction to thermal-induced imagery, the image after being proofreaied and correct by two-point method and binary nonlinear correction method;
Described blind element is proofreaied and correct, and by adopting blind element backoff algorithm, according to the response correlation of neighbor, front and back two field picture, the information of blind element position is predicted and is substituted;
Described image filtering denoising, realizes the denoising to thermal-induced imagery by Fast Median Filtering with the mean filter of threshold value, obtains image after denoising;
Described image detail strengthens, and by adopting dual threshold mapping, dual threshold self-adaptive enhancement algorithm and edge to strengthen algorithm, the histogram of original image is processed, and realizes the enhancing function to image;
Described picture processing chip, the design architecture of employing pipeline ADC, realizes the simulation of large array and exports high speed analog-to-digital conversion.
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Application publication date: 20141008 |