CN104280144A - System and method for remotely monitoring temperature of electrical component - Google Patents
System and method for remotely monitoring temperature of electrical component Download PDFInfo
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- CN104280144A CN104280144A CN201310274715.1A CN201310274715A CN104280144A CN 104280144 A CN104280144 A CN 104280144A CN 201310274715 A CN201310274715 A CN 201310274715A CN 104280144 A CN104280144 A CN 104280144A
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Abstract
The invention discloses a system and method for remotely monitoring the temperature of an electrical component. The system and method are used for remotely monitoring the inside of a shut-off electrical enclosure when local heating such as a hot spot exists. The monitoring system usually comprises a function component which is designed to carry out the following operations: when one or multiple hot spots are monitored in a dim or dark environment, the function component determines the position of the hot spot in an electrical enclosure body and the range of temperature of the hot spot, and / or informs an operator in an alarming or warning mode when the hot spot is detected. The monitoring system can comprise one or more temperature sensing elements, the one or more temperature sensing elements are configured to determine heating of a potential hot spot in the electrical enclosure. Besides, the function component can be designed to allow one or more electrical enclosures to carry out remote communication with a computer device such as a work station or a universal computer through a wireless network.
Description
Technical field
The present invention relates generally to such as electronic box (electrical enclosure) field of casing of the motor control center of use in arranging in industry and business.More specifically, embodiments of the invention relate to the electronic box being designed with remote temperature monitoring system.
Background technology
Electronic box and electric cabinet can be used in industry widely and automation application.Casing is configured to support circuit wherein and electric component and receives and send electric power and data-signal.Such as, casing may be used for holding various power electronic equipment, control circuit, motor driver etc.In industry, the casing being divided into each segmentation (segment) and compartment (bay) holding electric component (such as, single-phase switch and threephase switch, motor controller, automation controller able to programme, data and electric power networks interface etc.) is not difficult to find.Because the electric component in casing works under hyperbaric environment, therefore door is used for casing duration of work control and management entering the inside of each compartment or segmentation.
In some cases, the electric fault in casing can cause unexpected pressure to increase and/or local pyrexia (such as, focus).Such as, the local pyrexia in casing may damage cable, insulator, the parts even structure of casing.In addition, the local pyrexia in casing may cause cost to increase due to loss production time and the system failure.But, be difficult to the electronic box of (such as, during operation) monitoring closedown continuously for local pyrexia.Such as, time under system is in normal manipulation mode, be difficult to check that the dark of the electronic box of closing is inner to determine the position of local pyrexia.In addition, when be sure oing or know that system is just experiencing fault, may need to take the considerable time loads onto and takes off suitable gear to open casing to carry out manual authentication and maintenance.In fact in all cases, preferably, such service is avoided, unless until and actual needs.In addition, propose the technology for detecting the arc-flash event in casing, but these arc-flash events are normally very hot, therefore can directly be detected.The heating not having or not necessarily cause electric arc to be formed not easily is detected by such approach.Therefore, the cost savings technology of the abnormal temperature (such as, local pyrexia or focus) be used in the electronic box of the closedown of remote monitoring is in real time needed.
Summary of the invention
This technology relates generally to the system and method for the inside of the electronic box of closing for the remote monitoring for local pyrexia (such as, focus).Usually, monitoring system comprises the functional part being designed to perform following operation: in dim or dark surrounds, detect one or more focus, determine the position of the focus in casing, determine the temperature range of focus, and/or notify (such as, alarm or warning) operator when focus being detected.Such as, monitoring system can comprise one or more temperature-sensing element (such as, coating, coating and/or paster (decal)), and the one or more temperature-sensing element is configured to the heating of the potential focus determined in electronic box.In certain embodiments, temperature-sensing element can be arranged on the electric component in electronic box or between these electric components, to make temperature-sensing element near potential focus or to be arranged on potential focus.Especially, monitoring system is configured to the cosmetic variation based on temperature-sensing element and determines the heating of potential focus.In addition, monitoring system can comprise: light source, is configured to illuminate temperature-sensing element and/or potential focus to obtain better visuality; And detection system, be configured to receive reflected light and reflected light is treated to image related data.
Usually, monitoring function parts can be designed to the inside of the electronic box that remote monitoring is closed to obtain the information relevant with local pyrexia.Such as, even also can Real-Time Monitoring electronic box when door and the lid maintenance closedown of casing.In addition, aforementioned functional part can be designed to allow one or more electronic box by wireless network and computer equipment (such as, workstation or multi-purpose computer) telecommunication.In this way, the collected data relevant with the local pyrexia in one or more casing can be passed to Long-distance Control/monitoring system.In some cases, can warn when the local pyrexia in casing being detected or notify operator.In certain embodiments, by the information that wireless network identification is relevant with specific region with transmission, such as, the position of such as, local pyrexia in casing and/or temperature range.
Accompanying drawing explanation
When describing in detail below reading with reference to accompanying drawing, these and other feature of the present invention, aspect and advantage will become better understood, and in the accompanying drawings, identical Reference numeral represents identical part all the time, wherein:
Fig. 1 be according to this technology pass data to Long-distance Control/monitoring center by wireless network, the graphic representation of the automated system with exemplary electronic box;
Fig. 2 is the local graphic representation of the inside of a part for the electronic box of Fig. 1 according to this technology;
Fig. 3 according to this technology, be arranged in mutual graphic representation between detection/monitoring system in the electronic box of Fig. 1 and one or more electric component;
Fig. 4 is according to the graphic representation of this technology, the temperature-sensitive paster be arranged on the electric component of Fig. 3;
Fig. 5 is according to the graphic representation of this technology, the temperature sensitive coatings be arranged on the electric component of Fig. 3; And
Fig. 6 is according to this technology, for determining the process flow diagram of the method for the heating in the electronic box of Fig. 1.
Embodiment
Fig. 1 shows the embodiment of the automated system 10 with one or more electronic box.In drawn embodiment, electronic box can be the one or more motor control centers (MCC) 12 be used in various industry and automation application.Each MCC12 includes the cabinet with one or more subregion (section) 14, and one or more subregion 14 has one or more cable pipeline (wireway) 16 extended on subregion 14 side.In certain embodiments, cable pipeline 16 can be exclusively used in data, control electric power, load conductor etc.In typical applications, electric power 18 is applied to MCC12 via three-phase power conductor.Electric power 18 can be coupled to utility network or can draw from local generating set.Although describe this technology with reference to MCC and its particular elements generally included and circuit, it should be understood that, same technology can be suitable for detecting the focus in other setting, casing, application etc. comparably.
In MCC12, electric power 18 is distributed by a series of power bus (not shown) and makes the electric component be arranged in one or more compartment 20 can utilize electric power 18.As the skilled person will appreciate, each subregion 14 of MCC12 comprises one or more compartment 20.Each compartment 20 is covered by door 22, and door 22 enters the inside of compartment 20 during can being locked or latch the period preventing the electric component in casing to be energized.According to the particular elements that will be contained in compartment 20, its grouping and interconnection, its function etc. in the application, multiple independently compartment 20 can be provided with independently door 22.In certain embodiments, electric power 18 is applied to each compartment 20 by power connection (power stab), and wherein, power connection allows compartment 20 to be inserted in AC bus rod.According to the type of load and the type of desired control, the electric component in compartment 20 will comprise circuit protection parts (such as fuse, isolating switch etc.) and electric power connection part part (such as relay, contactor etc.).Specific control assembly (such as automation controller, motor starter, motor controller and driver etc.) also can be contained in compartment 20 and with other component connection to carry out the control expected.
In certain embodiments, electric power exports from MCC12, is generally three-phase power, is then applied to one or more motor 24.Motor 24 will perform automated system 10(such as, automatic machinery or process) in some desired functions.Such as, motor 24 can be used for the one or more loads 26 in operation automation system 10, such as has the motor of various configuration and size, valve, actuator or linear actuators etc.In such process, multiple MCC12 can be arranged on identical or different position and electric power is routed to each device according to machine or Treatment Design.
Each MCC12 in automated system 10 is coupled to the one or more networks that can be used for data communication.In certain embodiments, MCC12 can be coupled to industrial data exchange network, such as DeviceNet, ControlNet, Profibus, Modbus etc.In such embodiments, MCC12 can to communicate in MCC12 via industrial data exchange agreement between MCC12 with other external unit.In other embodiments, the data communication between MCC12 and external unit and in MCC12 can be carried out via Ethernet and/or Internet Protocol.As shown in Figure 1, in such embodiments, net control 28 is coupled to MCC12 via gateway/linked set 30.Gateway/linked set 30 for by network bridge joint each other, such as, such as, by net control 28 and Ethernet/IP network 34 bridge joint.In such embodiments, gateway/linked set 30 collect the information from net control 28 and send it to Ethernet/IP network 34 to carry out programming, to configure, to control, data acquisition etc.In other embodiments, Ethernet/IP network 34 can realize the direct data communication between one or more MCC12 and Long-distance Control/monitoring system 36, and does not need gateway/linked set 30.In this way, network 28 and 34 allows MCC12 to communicate with Long-distance Control/monitoring system 36.
Long-distance Control/monitoring system 36 comprises Long-distance Control and observation circuit, and this Long-distance Control and observation circuit are configured to control and monitor the various operations of MCC12 and automated system 10.Such as, Long-distance Control/monitoring system 36 comprises automation controller, control and monitoring Mediation Device, workshop or production line opertaing device etc.Especially, Long-distance Control/monitoring system 36 can be configured to the inside of the remote monitoring MCC12 for local pyrexia.In certain embodiments, Long-distance Control/monitoring system 36 is communicated with the detection system be arranged in MCC12 (drawing in Fig. 2) with 34 by network 28.Such as, detection system is configured to receive and processes the information relevant with the local pyrexia in MCC12, and this information is delivered to Long-distance Control/monitoring system 36.
Such as, information after Long-distance Control/monitoring system 36 can receive the process relevant with the focus in detected MCC12 from detection system.Under these circumstances, in response to information after received process, Long-distance Control/monitoring system can send about the position of the focus in detected MCC12 and/or the warning of temperature range or notice to operator.In other embodiments, detection system can receive the raw information relevant with the potential focus in MCC12 and raw information can be delivered to Long-distance Control/monitoring system 36.In these cases, Long-distance Control/monitoring system 36 can process and analyze raw information to determine position and/or the temperature range of the focus in MCC12.Long-distance Control/monitoring system can send warning about detected information or notice to operator.Long-distance Control/monitoring system 36 can be configured to visual manner (such as, text on display and/or figure, flash of light or the combination of the two), audible means (such as, by the sound heard or the warning of speaker system) or its combination send warning about the focus in MCC12 or notice to operator.
Fig. 2 shows the detailed view of the inside of a part for the electronic box of Fig. 1.More specifically, Fig. 2 shows the inside of the single compartment 20 in MCC12, to make the door 22 of compartment 20 in an open position.As shown, cable pipeline 16 extends on compartment 20 side, and can be exclusively used in data, control electric power, load conductor etc.Each compartment 20 of MCC12 comprises one or more electric component 38(of the function being provided for control system or process such as, parts 38), such as relay, motor starter, isolating switch, variable frequency drives, automation controller, programmable logic controller (PLC) (PLC) etc.Each parts 38 also can comprise one or more joint housing (not shown) of isolation electric connector (such as, engaging the metallic power joint of the vertical bus rod (not shown) be arranged in the rear of MCC12).Especially, the parts of temperature monitoring system (such as, one or more temperature-sensing element (drawing in Fig. 3), light source 40 and detection/monitoring system 42(such as, detection system 42)) can be arranged in compartment 20.
In certain embodiments, light source 40 can be the one or more infrarede emitting diodes (LED) be arranged in compartment 20.Light source 40 is adapted to the light producing such as infrared light and is arranged in the parts 38 in compartment 20 and/or the multiple surfaces on one or more temperature-sensing element to illuminate.Especially, light source 40 is configured to illuminate parts 38 and/or temperature-sensing element when the door of compartment 20 is in the closed position, wherein, and the inside of compartment 20 otherwise will be dim.In certain embodiments, light source 40 can be placed as and/or angulation for make produced light from light source 40 be directed to pay close attention to surface.Paying close attention to surface can be any region being subject to warming-up effect or the part of compartment 20, such as, such as, in the part being furnished with temperature-sensing element of parts 38 and/or compartment 20 or between parts 38 and the part being furnished with temperature-sensing element of compartment 20.Detection system 42 is configured to detect and receives the light from the multiple surface reflections in compartment 20.As further described in Fig. 3, the illumination highlights part 38 produced by light source 40 and/or the surface of temperature-sensing element, and detection system 42 collects the light from these surface reflections.
In the embodiment illustrated, light source 40 and detection system 42 are arranged in compartment 20 as individual components.In other embodiments, light source 40 can be integrated in detection system 42.In such embodiments, light source 40 can receive from detection system 42 electric power being used for work.In addition, the control circuit be arranged in detection system 42 can be used for the function of control and management light source 40, such as, such as, makes light source 40 "ON" or "Off", controls quantity and/or the position of the light source 40 activated, controls the intensity etc. of light source 40.
Fig. 3 shows that to be arranged between detection system 42 in the compartment 20 of Fig. 1 and electric component 38 mutual.As shown in Figure 3, the region of the compartment 20 in MCC12 may be subject to warming-up effect, and may be known as the potential focus in electronic box.Such as, these potential focuses 44 may be the one or more regions of position near the one or more conductors 46 be coupled with parts 38.In the embodiment illustrated, one or more temperature-sensing element 48 can be arranged on conductor 46 to detect the heating of potential focus 44.
In certain embodiments, temperature-sensing element 48 can be the material of any type that the vision of temperature variation can be provided to indicate.The material of these types can comprise light emitting molecule, reagent or adjuvant to its thermal environment sensitivity.Such as, once the temperature of thermal environment exceedes threshold value, the temperature in thermal environment rises and just may change the color of temperature sensing material.Like this, the outward appearance by monitoring temperature-sensing element 48 monitors thermal environment.In certain embodiments, temperature-sensing element 48 can be the temperature sensing paint or coating that apply near potential focus 44.Such as, temperature sensing paint or coating can be applied in MCC12 parts on or between parts.In other embodiments, temperature-sensing element 48 can be stick to MCC12 with bonding agent parts on or paster between parts or bur.
Light source 40 is configured to the surface illuminating temperature-sensing element 48, potential focus 44 and/or parts 38.Power supply 60(such as, battery, cable pipeline 16, outside wall outlet etc.) can be used for powering to light source 40.In certain embodiments, the control circuit 50 in detection system 42 comprises treatment circuit 52, storer 54, alerts/notification circuit 56 and telecommunication circuit 58.As described in detail below, control circuit 50 is configured to the function of control and management detection system 42, such as, such as irradiate and detect light, processing the light detected, according to detected photogenerated image, and process/analysis chart picture, to determine the heating in compartment 20.In addition, in certain embodiments, alerts/notification circuit 56 is for notifying the heating in MCC12 to operator.In addition, the technology that telecommunication circuit 58 can be used for describing according to Fig. 1 transmits the information relevant with heating to operator or Long-distance Control/monitoring system 36.
In dim or dark environment, such as in the inside of the compartment 20 of closing, almost there is no visible ray.Like this, the major part of the light reflected by temperature-sensing element 48, potential focus 44 and/or parts 38 is the infrared light provided at first by light source 40.Reflected light is detected by detection system 42.In certain embodiments, detection system 42 comprises the camera head 62 with wave filter 64 and imaging device 66.The imaging device 66 of detection system 42 can comprise the one or more imageing sensors being configured to generate digital picture based on detected light.Such as, imageing sensor can be charge-coupled device (CCD) or complementary metal oxide semiconductor (CMOS) (CMOS) sensor.In such sensor, by detected light being converted to each pixel that electric charge generates digital picture.Image processing circuit 68 can be coupled to camera head 62 to read the electric charge accumulated and to generate digital picture.CCD and/or cmos image sensor are the cost savings technology of the inside of compartment 20 for monitoring closedown.As shown, the imaging device 66 of detection system 42 receives and processes reflected light, to generate near one or more potential focus 44 or the image of temperature-sensing element 48 arranged above one or more potential focus 44.
The imaging device 66 of camera head 62 can be coupled to or can not be coupled to wave filter 64.Wave filter 64 can be merged in detection system 42, to stop that the visible ray of some wavelength arrives imaging device 66, allows infrared light to pass through simultaneously.Such as, wave filter 64 can be the infrared by wave filter (infrared pass filter) of the cutoff wavelength of the 850nm had for visible ray.As another example, wave filter 64 can be that the infrared of visible ray cutoff wavelength with 630nm, 665nm, 715nm, 780nm, 830nm or 1000nm passes through wave filter.
In certain embodiments, image processing circuit 68 is can be coupled to control circuit 50 by communication mode.Especially, the image that image processing circuit 68 generates can be sent to treatment circuit 52 to carry out other process and analysis.Such as, treatment circuit 52 can receive the coloured image of temperature-sensing element 48, and wherein, most of visible ray is by filtering.Received coloured image can be converted to black and white or grayscale image to be further processed and to analyze by treatment circuit 52.
Especially, and as discussed further in figure 6, control circuit 50 comprises the data processing code or algorithm that storage performs in systems in which and by treatment circuit 52.Data processing algorithm can be used for analyzing temperature-sensing element 48 grayscale image and based on the inside of determined information monitoring compartment 20.Such as, data processing algorithm can be used for the grayscale image by analyzing temperature-sensing element 48 and determines the heating in compartment 20.Grayscale image can be analyzed for the various objects (such as, point) in image, wherein, the change of the color of the existence instruction temperature-sensing element 48 of the object in image.Treatment circuit 52 is also associated with storer 54, and storer 54 can be used for storing the historical information relevant with the grayscale image of received previous analysis and process.Like this, in certain embodiments, by this grayscale image and the grayscale image of the previous analysis retrieved from storer 54 and process are compared the cosmetic variation determining temperature-sensing element 48.In other embodiments, treatment circuit 52 is configured to position and/or the temperature (such as, temperature range) of the heating determined in MCC12.Such as, by identifying from the position that it obtains the camera head 62 of grayscale image to determine the position of the heating in MCC12.In addition, as following about described by Fig. 4 to 5, the cosmetic variation by analyzing temperature-sensing element 48 determines temperature and/or the temperature range at position (that is, the potential focus 44) place generated heat.
Fig. 4 is the graphic representation of the temperature-sensing element 48 be arranged on the electric component 38 of Fig. 3.In the embodiment illustrated, temperature-sensing element 48 is the first temperature-sensitive paster 70, second temperature-sensitive paster 72 and the 3rd temperature-sensitive paster 74.Paster 70,72 and 74 can adhere to the region (such as, conductor 46) parts 38 being subject to warming-up effect, such as potential focus 44.In other embodiments, temperature-sensing element 48 can be arranged between the parts 38 of potential focus 44 direct neighbor, or generally can be arranged in MCC12 any position being subject to warming-up effect.Especially, the change of the thermal environment around conductor 46 or in potential focus 44 can change the outward appearance (such as, color) of paster 70,72 and 74.Such as, when the temperature of thermal environment exceedes specified temp threshold value, one or more in paster 70,72 or 74 can change color.This cosmetic variation is illuminated by light source 40 and is detected by detection system 42.
As shown, each one or more temperature-sensing elements 48 all with different temperature thresholds can be bonded to each other use to provide the larger dirigibility during internal temperature of monitoring and cutting out compartment 20.Such as, the original state 76 that temperature does not raise in compartment 20, paster 70,72 or 74 can be in its nature or primitive color (such as, white, red, blue, yellow etc.).In original state 76, temperature can in the normal operating condition of MCC12, such as between about 20 DEG C and 55 DEG C, between 30 DEG C and 50 DEG C or between 40 DEG C and 45 DEG C.
The temperature of the inside of the compartment 20 of closing may increase due to various main or subsystem fault.Along with the temperature in surrounding environment increases from original state 76, when environment temperature exceedes for the temperature threshold of each in paster 70,72 or 74, paster 70,72 or 74 changes outward appearance (such as, color).Such as, the temperature threshold of paster 70 can between about 60 DEG C and 70 DEG C, and the temperature threshold of paster 72 can between about 100 DEG C and 110 DEG C, and the temperature threshold of paster 74 can between about 140 DEG C and 150 DEG C.Like this, the temperature of environment is greater than 60 DEG C but is less than the first increase state of temperature 78 of 95 DEG C around, and paster 70 changes color exceedes the environment temperature of the temperature threshold of paster 70 rising with instruction.The cosmetic variation of paster 70 is caught by detection system 42, and the information relevant with the position that temperature increases and/or temperature range is passed to Long-distance Control/monitoring system 36 from control circuit 50.In addition, as shown in the first state of temperature 78, along with the temperature of thermal environment is close to the temperature threshold of paster 72, paster 72 starts the process changing outward appearance.
Similarly, but the temperature of thermal environment is greater than 100 DEG C is less than the second increase state of temperature 80 of 140 DEG C around, and paster 72 changes color exceedes the environment temperature of the temperature threshold of paster 72 rising with instruction.The cosmetic variation of paster 72 is caught by detection system 42, and the information relevant with the position that temperature increases and/or temperature range is passed to Long-distance Control/monitoring system 36 from control circuit 50.In addition, along with the temperature of thermal environment is close to the temperature threshold of paster 74, paster 74 starts the process changing outward appearance.Like this, around the temperature of thermal environment be greater than 140 DEG C the 3rd increase state of temperature 82, all pasters 70,72 and 74 all change color with indicated ambient thermal conditions to exceed the even hot threshold value of paster 74.The cosmetic variation of paster 74 is caught by detection system 42, and the information relevant with the position that temperature increases and/or temperature range is passed to Long-distance Control/monitoring system 36 from control circuit 50.In certain embodiments, when the temperature of potential focus 44 exceedes some threshold value, notice or alert operator, and determine these threshold values by the user's input to Long-distance Control/monitoring system 36.
Although shown embodiment has indicated each temperature threshold for each in paster 70,72 and 74, temperature-sensing element 48 can customize with arbitrary temp threshold value, with the needs of applicable MCC12 and compartment 20.In fact, the temperature-sensing element 48 of any amount can be used, and each temperature-sensing element 48 can be set for different temperatures threshold value.Like this, the dirigibility increased when present technology provides the various temperature variation in monitoring MCC12.In addition, in other embodiments, the material that temperature-sensing element 48 can be changed outward appearance gradually by the increase be configured to based on the temperature of ambient thermal conditions is formed.In such embodiments, the temperature of surrounding environment can based on the color of element 48.
Fig. 5 is the graphic representation of the temperature-sensing element 48 be arranged on the electric component 38 of Fig. 3, and wherein, temperature-sensing element 48 is arranged in temperature sensitive coatings 84(on conductor 46 such as, coating 84).In fact, coating 84 can be subject to region (such as, the conductor 46) layering of warming-up effect on parts 38, such as, and potential focus 44.In other embodiments, coating 84 can layering between the parts 38 of potential focus 44 direct neighbor, or generally can be arranged in MCC12 the optional position being subject to warming-up effect.Especially, one or more layers of coating 84 can be applied in the compartment 20 of MCC12, and wherein, each extra play can strengthen the visuality of coating 84 when it changes outward appearance.
In the embodiment illustrated, coating 84 can have the temperature threshold between about 100 DEG C and 110 DEG C.As above described in the diagram, the original state 76 that temperature does not raise in compartment 20, coating 84 can be in its nature or primitive color.In original state 76, temperature can in the normal operating condition of MCC12, such as between about 30 DEG C and 50 DEG C.In certain embodiments, along with the temperature in thermal environment increases from original state 76, when exceeding the temperature threshold of coating 84, coating 84 changes outward appearance (such as, color).Such as, but the temperature of environment is greater than 60 DEG C is less than the first increase state of temperature 78 of 95 DEG C around, and the temperature along with surrounding environment starts the process changing outward appearance gradually, and the outward appearance of coating 84 can start to change gradually.Like this, but the temperature of thermal environment is greater than 100 DEG C is less than the second increase state of temperature 80 of 140 DEG C around, and coating 84 changes color has exceeded coating 84 temperature threshold with instruction.The cosmetic variation of paster 74 is caught by detection system 42, and the information relevant with the position that temperature increases and/or temperature range is passed to Long-distance Control/monitoring system 36 from control circuit 50.
In other embodiments, the material that temperature sensitive coatings 84 can change outward appearance gradually by being configured to increase based on the temperature of ambient thermal conditions is formed.In these embodiments, rise to the first increase state of temperature 78 along with temperature from original state 76 and increase state of temperature 80 to second, coating 84 changes different colors gradually into, to make the color of the coating 84 in each state different.
Fig. 6 is the process flow diagram of the method 85 for determining the heating in MCC12.Method 85 can start from the target location (block 86) coating 84 and/or paster 70,72 and 74 are coated on or are applied in MCC12.As mentioned above, target location can be MCC12 compartment 20 in be subject to any region of warming-up effect, such as, the region of the potential focus 44 around the conductor 46 of electric component 38.In fact, target area can be region between parts 38, with the region of parts 38 direct neighbor or the region directly above parts 38.
Then, control circuit 50 can make light source 40 illuminate to be arranged in the parts 38(block 88 in compartment 20).In certain embodiments, light source 40 can illuminate in addition position near parts 38 temperature-sensing element 48(such as, coating 84 or paster 70,72 and 74).Light source 40 can be the one or more infrarede emitting diodes (LED) sending infrared light.Detection system 42 is configured to detect and receives the light from the multiple surface reflections in compartment 20.Especially, detection system 42 comprises image processing circuit 68, and image processing circuit 68 generates digital picture (block 90) based on detected infrared light.In certain embodiments, image processing circuit 68 is can be coupled to control circuit 50 by communication mode.Particularly, the image generated by image processing circuit 68 can be sent to treatment circuit 52 to carry out other process and analysis.
Treatment circuit 52 usage data Processing Algorithm can analyze the image generated by detection system 42.Particularly, after digital picture is converted to grayscale image, then analyze grayscale image to obtain other information (block 92).Such as, can process to determine to image the existence of various objects, shape or point that the color of the temperature-sensing element 48 that can indicate in compartment 20 changes.Periodically or when there is the change of certain state can carry out such analysis.For periodicity analysis, detection system 42 checks the state of temperature-sensing element 48 with predetermined space for cosmetic variation.For the analysis carried out when there is the change of certain state, detection system 42 monitors the state of temperature-sensing element 48 continuously for cosmetic variation.When there is not various object, shape or point in grayscale image, control circuit 50 continues to illuminate parts 38.
The existence of the various objects in gray level digital picture, shape or point can indicate the cosmetic variation of temperature-sensing element 48, thus indicates the heating at potential focus 44 place in MCC12.Under these circumstances, treatment circuit 52 can determine temperature or the temperature range (block 96) of temperature-sensing element 48.By determining which temperature-sensing element 48 changes the temperature threshold of each in color and these elements 48, treatment circuit 52 can determine the roughly temperature of the thermal environment in compartment 20.In addition, treatment circuit 52 can determine the position (block 98) of the heating in compartment 20.Such as, treatment circuit 52 can determine the position of the camera head 62 of the shooting initial pictures in MCC12.In certain embodiments, alerts/notification circuit 56 is for notifying the heating (block 100) in MCC12 to operator.Such as, the telecommunication circuit 58 in detection system 42 can be used for transmitting the information relevant with heating to operator or Long-distance Control/monitoring system 36.
Although only illustrate and described some feature of the present invention here, those skilled in the art can carry out multiple amendment and change.Therefore, should be understood that claims are intended to cover and fall into all such amendments in connotation of the present invention and change.
Claims (20)
1., for monitoring a system for electrical system, comprising:
Light source, is configured to illuminate the potential focus on the parts in described electronic box or between parts when electronic box is closed, described potential focus is all furnished with at least one temperature-sensing element;
Detection system, is configured to receive light from described temperature-sensing element; And
Monitoring system, is coupled to described detection system, and the cosmetic variation be configured to based on described temperature-sensing element and determine the heating of described potential focus.
2. system according to claim 1, wherein, described light source comprises infrarede emitting diode.
3. system according to claim 2, wherein, described detection system comprises infrared filter and camera head.
4. system according to claim 1, wherein, described temperature-sensing element comprises the one or more coating or coating that are applied to described potential focus.
5. system according to claim 1, wherein, described temperature-sensing element comprises the one or more pasters being applied to described potential focus.
6. system according to claim 1, comprises multiple temperature-sensing element, and described multiple temperature-sensing element fully changes outward appearance at different temperatures to detect.
7. system according to claim 1, wherein, temperature-sensing element described at least one fully changes outward appearance at lower than the temperature of about 70 DEG C and detects for described detection system.
8. system according to claim 7, wherein, temperature-sensing element described at least one fully changes outward appearance at lower than the temperature of about 110 DEG C and detects for described detection system.
9. system according to claim 1, comprises notifying parts, and described notifying parts is coupled to described monitoring system and is configured to provide the remote notification of potential focus heating described at least one.
10. an electronic box, comprising:
Shell, is configured to hold the one or more electric components be arranged in one or more interior compartment of described shell, and wherein, described encasement couples is to one or more compartment door, and described one or more compartment door is configured to surround described electric component;
One or more temperature-sensing element, is arranged on described one or more electric component or between described one or more electric component, and the heating be configured to based on the potential focus in described shell and change outward appearance;
Light source, is arranged in described one or more interior compartment, and wherein, described light source is configured to illuminate described one or more temperature-sensing element; And
Detection system, is arranged in described one or more interior compartment, and wherein, described detection system is configured to receive the image information relevant with the cosmetic variation of at least one temperature-sensing element.
11. electronic boxs according to claim 10, wherein, described detection system is coupled to remote supervision system, and described remote supervision system is configured to the heating determining potential focus described at least one based on the image information received from described detection system.
12. electronic boxs according to claim 11, comprise notifying parts, and described notifying parts is coupled to described monitoring system and is configured to provide the remote notification of the heating of potential focus described at least one.
13. electronic boxs according to claim 11, wherein, described remote supervision system comprises the storer being configured to store photographed image-related information.
14. 1 kinds of methods, comprising:
To be arranged on the one or more electric components in electronic box or between apply one or more temperature-sensing element, wherein, described one or more temperature-sensing element is configured to the heating based on the potential focus in described electronic box and changes outward appearance;
Utilization is arranged in temperature-sensing element described in the light illuminating in described electronic box;
The light utilizing detection system to detect to be reflected by described temperature-sensing element and light detected by process are with synthetic image relevant information; And
The heating of at least one focus in described electronic box is determined based on generated photographed image-related information.
15. methods according to claim 14, comprising: the position determining the heating of at least one focus described in described electronic box.
16. methods according to claim 14, comprising: temperature or the temperature range of determining the heating of at least one focus described in described electronic box.
17. methods according to claim 14, comprising: provide the alarm of the heating of at least one focus described in described electronic box to indicate.
18. methods according to claim 14, wherein, determine the heating of at least one focus described with one or more default delta period.
19. methods according to claim 14, wherein, determine the heating of at least one focus described in response to the cosmetic variation of described one or more temperature-sensing element.
20. methods according to claim 14, wherein, described temperature-sensing element comprises one or more coating, coating or paster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274715.1A CN104280144A (en) | 2013-07-02 | 2013-07-02 | System and method for remotely monitoring temperature of electrical component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274715.1A CN104280144A (en) | 2013-07-02 | 2013-07-02 | System and method for remotely monitoring temperature of electrical component |
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| CN104280144A true CN104280144A (en) | 2015-01-14 |
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| CN201310274715.1A Pending CN104280144A (en) | 2013-07-02 | 2013-07-02 | System and method for remotely monitoring temperature of electrical component |
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