CN107167248B - Infrared thermopile sensor and fault detection method, device and equipment thereof - Google Patents
Infrared thermopile sensor and fault detection method, device and equipment thereof Download PDFInfo
- Publication number
- CN107167248B CN107167248B CN201710384739.0A CN201710384739A CN107167248B CN 107167248 B CN107167248 B CN 107167248B CN 201710384739 A CN201710384739 A CN 201710384739A CN 107167248 B CN107167248 B CN 107167248B
- Authority
- CN
- China
- Prior art keywords
- thermopile
- sensor
- infrared
- fault
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000006870 function Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005678 Seebeck effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
Abstract
The invention provides an infrared thermopile sensor and a fault detection method, a device and equipment thereof, wherein the method comprises the following steps: detecting whether a thermopile element satisfying a predetermined condition exists in a thermopile element array of the infrared thermopile sensor; and if so, determining whether the infrared thermopile sensor is in fault or not according to whether the number of the thermopile elements meeting the preset condition reaches the preset number or not. The scheme provided by the invention can determine whether the sensor is in fault according to the number of fault elements in the thermopile element array of the infrared thermopile sensor; and when the number of the fault elements does not reach the preset number, the temperature detected by the faulted thermopile element can be re-valued, the fault occurrence rate of the infrared thermopile sensor can be reduced, and the cost of manual detection and fault repair is reduced.
Description
Technical Field
The invention relates to the field of detection, in particular to an infrared thermopile sensor and a fault detection method, device and equipment thereof.
Background
At present, intelligent air conditioners are rapidly developed, and infrared sensing modules are more and more applied; failure of the infrared sensor will result in failure of the related functions developed for it, for example, the infrared human body sensing function of the air conditioner. Therefore, the failure rate of the infrared sensor is reduced, and smooth application and implementation of the developed functions of the infrared sensor can be guaranteed.
In summary, a fault detection scheme for an infrared sensor needs to be provided.
Disclosure of Invention
The main purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide an infrared thermopile array sensor, and a method, an apparatus, and a device for detecting faults thereof, so as to solve the problem of fault detection of the infrared sensor in the prior art.
The invention provides a fault detection method of an infrared thermopile sensor on one hand, which comprises the following steps: detecting whether a thermopile element satisfying a predetermined condition exists in a thermopile element array of the infrared thermopile sensor; and if so, determining whether the infrared thermopile sensor is in fault or not according to whether the number of the thermopile elements meeting the preset condition reaches the preset number or not.
Optionally, the method further comprises: and if the infrared thermopile sensor is determined not to have a fault, carrying out value re-taking on the temperature value detected by the thermopile element meeting the preset condition according to the temperature value detected by the thermopile element adjacent to the thermopile element meeting the preset condition in the thermopile element array.
Optionally, the re-valuating the temperature value detected by the thermopile element meeting the predetermined condition according to the temperature value detected by the thermopile element adjacent to the thermopile element meeting the predetermined condition in the thermopile element array includes: taking the highest temperature value in the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array as the temperature value detected by the thermopile element satisfying the predetermined condition; or, the average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array is used as the temperature value detected by the thermopile element satisfying the predetermined condition.
Optionally, the predetermined condition comprises: the absolute value of the difference between the detected temperature value and the ambient temperature reaches a predetermined temperature threshold.
Optionally, the predetermined temperature threshold has a value range of 3 ℃ to 6 ℃.
Optionally, a ratio of the predetermined number to a total number of thermopile elements in the thermopile element array is within a predetermined range.
Optionally, the method further comprises: and if the infrared thermopile sensor is determined to have a fault, displaying fault prompt information.
Optionally, displaying the fault notification information includes: and displaying the fault prompt information in a circulating mode within preset time.
Optionally, the method further comprises: and if the infrared thermopile sensor is determined to be in fault, controlling the infrared thermopile sensor to recover to the initial position.
Another aspect of the present invention provides a fault detection apparatus for an infrared thermopile sensor, including: a detection unit for detecting whether there is a thermopile element satisfying a predetermined condition in a thermopile element array of the infrared thermopile sensor;
and the determining unit is used for determining whether the infrared thermopile sensor has faults or not according to whether the number of the thermopile elements meeting the preset condition reaches the preset number or not if the detecting unit detects that the thermopile elements meeting the preset condition exist.
Optionally, the apparatus further comprises: and the value taking unit is used for re-taking the value of the temperature value detected by the thermopile element meeting the preset condition according to the temperature value detected by the thermopile element adjacent to the thermopile element meeting the preset condition in the thermopile element array if the infrared thermopile sensor is determined not to have faults by the determining unit.
Optionally, the value taking unit is further configured to: taking the highest temperature value in the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array as the temperature value detected by the thermopile element satisfying the predetermined condition; or, the average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array is used as the temperature value detected by the thermopile element satisfying the predetermined condition.
Optionally, the predetermined condition comprises: the absolute value of the difference between the detected temperature value and the ambient temperature reaches a predetermined temperature threshold.
Optionally, the predetermined temperature threshold has a value range of 3 ℃ to 6 ℃.
Optionally, a ratio of the predetermined number to a total number of thermopile elements in the thermopile element array is within a predetermined range.
Optionally, the apparatus further comprises: and the display unit is used for displaying fault prompt information if the determining unit determines that the infrared thermopile sensor has faults.
Optionally, the display unit is further configured to: and displaying the fault prompt information in a circulating mode within preset time.
Optionally, the apparatus further comprises: and the resetting unit is used for controlling the infrared thermopile sensor to recover to an initial position if the determining unit determines that the infrared thermopile sensor has a fault.
In a further aspect, the present invention provides an infrared thermopile sensor including a fault detection apparatus of any one of the foregoing infrared thermopile sensors.
In a further aspect of the invention there is provided an apparatus comprising an infrared thermopile sensor as hereinbefore described.
Optionally, the device comprises an air conditioner.
According to the technical scheme of the invention, whether the sensor is in failure or not can be determined according to the number of failed elements (namely, thermopile elements meeting a preset condition) in the thermopile element array of the infrared thermopile sensor; and, when the fault component in the thermopile element array does not reach predetermined quantity, carry out the value again to the temperature value that the fault component detected according to the temperature that the adjacent thermopile element of fault component detected, the realization is calibrated the temperature that the thermopile element that breaks down detected, solve the inaccurate problem of the temperature that leads to because few thermopile elements break down the detection, ensure that infrared thermopile sensor can normal use when simple trouble appears, can reduce the fault incidence of infrared thermopile sensor, thereby reduce the equipment that has infrared function because infrared thermopile sensor breaks down and leads to the emergence of the condition of relevant function failure, reduce artifical detection, the cost of repairing the trouble.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a method schematic of an embodiment of a method of fault detection of an infrared thermopile sensor provided in accordance with the present invention;
FIG. 2 is a method schematic of another embodiment of a method of fault detection of an infrared thermopile sensor provided in accordance with the present invention;
FIG. 3 is a block diagram of an embodiment of an infrared thermopile sensor and a fault detection device included therein, in accordance with the present invention;
fig. 4 is a block diagram of another embodiment of an infrared thermopile sensor and a fault detection apparatus included therein according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical scheme of the invention is particularly suitable for carrying out fault detection on the infrared thermopile array sensor. According to the seebeck effect, at the junction of two different metal materials, when their temperatures are different, a current is generated in a closed loop circuit formed by the two materials, and this phenomenon is widely used for temperature measurement of thermocouples. The thermopile or thermopile array is composed of a plurality of heat sensitive elements, each of which is composed of two different heat sensitive materials. Taking an infrared thermopile array sensor with 8x8 lattice as an example, the sensor contains 64 thermopile elements in an 8x8 lattice type layout, and can detect the absolute temperature of the surface of an object without contacting the object to be detected.
Fig. 1 is a schematic method diagram of an embodiment of a fault detection method for an infrared thermopile sensor provided in the present invention.
As shown in fig. 1, according to an embodiment of the present invention, the method for detecting a fault of an infrared thermopile sensor includes at least steps S110 and S120.
Step S110, detecting whether there is a thermopile element satisfying a predetermined condition in the thermopile element array of the infrared thermopile sensor.
The thermopile element may in particular be a thermocouple. The predetermined conditions include: the absolute value of the difference between the detected temperature value and the ambient temperature reaches a predetermined temperature threshold. Wherein, a temperature detected by a temperature detection device (e.g., a temperature sensor) provided in a detection environment of the infrared thermopile sensor may be acquired as an ambient temperature. For example, for an infrared thermopile sensor of an air conditioning device, the indoor ambient temperature detected by a temperature sensor on the air conditioner or a temperature sensing bulb at the air inlet of the air conditioner can be acquired.
Let T be the temperature value detected by any thermopile elementDetection ofAt an ambient temperature of TRing (C)If the predetermined temperature threshold is Δ T, the predetermined condition is | TDetection of-TRing (C)| ≧ Δ T. Wherein, the value range of the predetermined temperature threshold value can be 3-6 ℃, namely delta T is more than or equal to 3 ℃ and less than or equal to 6 ℃. The predetermined condition is actually a determination condition for determining whether or not any thermopile element in the thermopile element array of the infrared thermopile sensor is a faulty element, and if any thermopile element satisfies the determination condition, the thermopile element may be regarded as a faulty element (i.e., a dead spot).
And step S120, if the thermopile elements meeting the preset condition exist, determining whether the infrared thermopile sensor has faults or not according to whether the number of the thermopile elements meeting the preset condition reaches the preset number or not.
And if the number of the thermopile elements meeting the preset condition does not reach the preset number, determining that the infrared thermopile sensor fails. Wherein the predetermined number may be predetermined in accordance with a total number of thermopile elements in the array of thermopile elements. A ratio of the predetermined number to a total number of thermopile elements in the thermopile array is within a predetermined range. For example, assuming that the predetermined number is N and the predetermined range is [ 15%, 20% ], the predetermined number N should satisfy 10% or more and N/N or less and 20%. The total number of thermopile elements in the thermopile array is 8 × 8, i.e., N is 64, N may be an integer from 10 to 12. For example, n may be 10.
Fig. 2 is a schematic method diagram of another embodiment of the fault detection method of the infrared thermopile sensor provided in the present invention. As shown in fig. 2, according to the above embodiment, if it is determined in step S120 that the infrared thermopile sensor is not faulty, the fault detection method further includes step S130; alternatively, if it is determined in step S120 that the infrared thermopile sensor has a failure, the failure detection method further includes step S140.
Step S130, if it is determined that the infrared thermopile sensor is not in fault, re-valuating the temperature value detected by the thermopile element meeting the predetermined condition according to the temperature value detected by the thermopile element adjacent to the thermopile element meeting the predetermined condition in the thermopile element array.
Namely, the temperature value detected by the thermopile element meeting the predetermined condition is eliminated, and the value is re-taken according to the adjacent thermopile element of the thermopile element meeting the predetermined condition in the thermopile element array of the infrared thermopile sensor. Wherein a thermopile element of the thermopile element array adjacent to the thermopile element satisfying a predetermined condition includes: and adjacent thermopile elements in the row where the thermopile element meeting the preset condition is located in the thermopile element array and adjacent thermopile elements in the column where the thermopile element meeting the preset condition is located. Specifically, according to the temperature value detected by the thermopile element adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array, the temperature value detected by the thermopile element satisfying the predetermined condition may be re-valued in any one of the following manners:
(1) and taking the highest temperature value in the temperature values detected by the thermopile elements adjacent to the thermopile element meeting the preset condition in the thermopile element array as the temperature value detected by the thermopile element meeting the preset condition.
(2) And taking the average value of the temperature values detected by the thermopile elements adjacent to the thermopile element meeting the preset condition in the thermopile element array as the temperature value detected by the thermopile element meeting the preset condition.
The average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array may be, for example, an arithmetic average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition.
According to the embodiment, when the number of fault elements (namely, the thermopile elements meeting the preset condition) in the thermopile element array of the infrared thermopile sensor does not reach the preset number, the temperature value detected by the fault element is re-valued according to the temperature detected by the thermopile elements adjacent to the fault element, so that the temperature detected by the faulted thermopile element is calibrated, and the problem of inaccurate detected temperature caused by the fault of a few thermopile elements is solved.
And step S140, if the infrared thermopile sensor is determined to have a fault, displaying fault prompt information.
Specifically, the failure prompt information is displayed cyclically for a predetermined time. The preset time is, for example, 30S, that is, the fault prompt message is displayed in a circulating manner and lasts for 30S, wherein the value range of the preset time t may be, for example, 20S ≦ t ≦ 30S. The fault notification information may be, for example, a fault code.
Further, based on any of the above embodiments, the fault detection method further includes: and if the infrared thermopile sensor is determined to be in fault, controlling the infrared thermopile sensor to recover to the initial position.
For example, in an air conditioner, if an infrared thermopile sensor fails, the infrared human body sensing function of the air conditioner will fail, but normal execution of other functions of the air conditioner is not affected, at this time, resetting of the infrared sensor of the air conditioner is executed, that is, the infrared sensor of the air conditioner is controlled to be restored to an initial position, the air conditioning unit normally operates, when the infrared thermopile sensor is turned on, rotational scanning is performed within a specific rotation angle range (for example, 180 °), and the initial position refers to a position when the infrared thermopile sensor is not turned on.
Fig. 3 is a schematic structural diagram of an embodiment of an infrared thermopile sensor and a fault detection device included therein according to the present invention. As shown in fig. 3, the infrared thermopile sensor 1 includes a fault detecting device 100, the fault detecting device 100 including: a detection unit 110 and a determination unit 120.
The detection unit 110 is configured to detect whether there is a thermopile element satisfying a predetermined condition in the thermopile element array of the infrared thermopile sensor 1. The determination unit 120 is configured to determine whether the infrared thermopile sensor 1 is faulty according to whether the number of thermopile elements satisfying a predetermined condition reaches a predetermined number, if the detection unit detects that there are thermopile elements satisfying the predetermined condition.
The predetermined conditions include: the absolute value of the difference between the detected temperature value and the ambient temperature reaches a predetermined temperature threshold. Wherein, a temperature detected by a temperature detection device (e.g., a temperature sensor) provided in a detection environment of the infrared thermopile sensor may be acquired as an ambient temperature. For example, for an infrared thermopile sensor on an air conditioner, the indoor ambient temperature detected by a temperature sensor on the air conditioner or a bulb at the air inlet of the air conditioner may be obtained.
Suppose anThe temperature value detected by the thermopile element is TDetection ofAt an ambient temperature of TRing (C)If the predetermined temperature threshold is Δ T, the predetermined condition is | TDetection of-TRing (C)| ≧ Δ T. Wherein the value range of the preset temperature threshold is 3-6 ℃, namely delta T is more than or equal to 3 ℃ and less than or equal to 6 ℃. The predetermined condition is actually a determination condition for determining whether or not any thermopile element in the thermopile element array of the infrared thermopile sensor is a faulty element, and if any thermopile element satisfies the determination condition, the thermopile element may be regarded as a faulty element (i.e., a dead spot).
The determination unit 120 determines that the infrared thermopile sensor 1 is malfunctioning if the number of thermopile elements satisfying the predetermined condition detected by the detection unit 110 reaches a predetermined number, and the determination unit 120 determines that the infrared thermopile sensor 1 is not malfunctioning if the number of thermopile elements satisfying the predetermined condition detected by the detection unit 110 does not reach the predetermined number. Wherein the predetermined number may be predetermined in accordance with a total number of thermopile elements in the array of thermopile elements. A ratio of the predetermined number to a total number of thermopile elements in the thermopile array is within a predetermined range. For example, assuming that the predetermined number is N and the predetermined range is [ 15%, 20% ], the predetermined number N should satisfy 10% or more and N/N or less and 20%. The total number of thermopile elements in the thermopile array is 8 × 8, i.e., N is 64, N may be an integer from 10 to 12. For example, n may be 10.
Fig. 4 is a block diagram of another embodiment of the fault detection apparatus of the infrared thermopile sensor provided in the present invention. As shown in fig. 4, based on the above embodiment, the failure detection apparatus 100 further includes a value taking unit 130, configured to, if the determination unit 120 determines that the infrared thermopile sensor 1 has not failed, the value taking unit 130 re-takes a value of the temperature value detected by the thermopile element satisfying the predetermined condition according to the temperature value detected by the thermopile element adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array. That is to say, the value taking unit 130 eliminates the temperature value detected by the thermopile element meeting the predetermined condition, and takes a value again according to the temperature value detected by the thermopile element meeting the predetermined condition in the thermopile element array of the infrared thermopile sensor.
Wherein a thermopile element of the thermopile element array adjacent to the thermopile element satisfying a predetermined condition includes: and adjacent thermopile elements in the row where the thermopile element meeting the preset condition is located in the thermopile element array and adjacent thermopile elements in the column where the thermopile element meeting the preset condition is located. Specifically, the value taking unit 130 may take a value again of the temperature value detected by the thermopile element satisfying the predetermined condition according to the temperature value detected by the thermopile element adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array by any one of the following manners:
(1) and taking the highest temperature value in the temperature values detected by the thermopile elements adjacent to the thermopile element meeting the preset condition in the thermopile element array as the temperature value detected by the thermopile element meeting the preset condition.
(2) And taking the average value of the temperature values detected by the thermopile elements adjacent to the thermopile element meeting the preset condition in the thermopile element array as the temperature value detected by the thermopile element meeting the preset condition.
The average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array may be, for example, an arithmetic average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition.
According to the embodiment, when the number of fault elements (namely, the thermopile elements meeting the preset condition) in the thermopile element array of the infrared thermopile sensor does not reach the preset number, the temperature value detected by the fault element is re-valued according to the temperature detected by the thermopile elements adjacent to the fault element, so that the temperature detected by the faulted thermopile element is calibrated, and the problem of inaccurate detected temperature caused by the fault of a few thermopile elements is solved.
As shown in fig. 4, the fault detection apparatus 100 further includes a display unit 140, and displays a fault indication message if the determination unit 120 determines that the infrared thermopile sensor has a fault.
Specifically, the display unit 140 may cyclically display the failure indication information for a predetermined time. The predetermined time is, for example, 30S, that is, the display unit 140 displays the fault notification message in a cycle and lasts for 30S, wherein the value range of the predetermined time t may be, for example, 20S ≦ t ≦ 30S. The fault notification information may be, for example, a fault code.
Further, the apparatus 100 further comprises: a reset unit (not shown) for controlling the infrared thermopile sensor to be restored to an initial position if the determination unit determines that the infrared thermopile sensor has a failure.
For example, in an air conditioner, if an infrared thermopile sensor fails, the infrared human body sensing function of the air conditioner will fail, but normal execution of other functions of the air conditioner is not affected, at this time, resetting of the infrared sensor of the air conditioner is executed, a resetting unit controls the infrared sensor of the air conditioner to recover to an initial position, the air conditioning unit normally operates, when the infrared thermopile sensor is turned on, the infrared thermopile sensor performs rotary scanning within a specific rotation angle range (for example, 180 °), and the initial position refers to a position when the infrared thermopile sensor is not turned on.
The present invention also provides an apparatus comprising an infrared thermopile sensor described in the previous embodiments. The device may specifically be an air conditioner.
Accordingly, the present invention provides a scheme capable of determining whether a sensor is malfunctioning based on the number of malfunctioning elements (i.e., thermopile elements satisfying a predetermined condition) in a thermopile element array of an infrared thermopile sensor; and, when the fault component in the thermopile element array does not reach predetermined quantity, carry out the value again to the temperature value that the fault component detected according to the temperature that the adjacent thermopile element of fault component detected, the realization is calibrated the temperature that the thermopile element that breaks down detected, solve the inaccurate problem of the temperature that leads to because few thermopile elements break down the detection, ensure that infrared thermopile sensor can normal use when simple trouble appears, can reduce the fault incidence of infrared thermopile sensor, thereby reduce the equipment that has infrared function because infrared thermopile sensor breaks down and leads to the emergence of the condition of relevant function failure, reduce artifical detection, the cost of repairing the trouble.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and the parts serving as the control device may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (25)
1. A fault detection method of an infrared thermopile sensor is characterized in that the infrared thermopile sensor is an infrared thermopile sensor of an air conditioner, and comprises the following steps:
detecting whether there is a thermopile element in an array of thermopile elements of the infrared thermopile sensor meeting a predetermined condition, the predetermined condition including: the absolute value of the difference between the detected temperature value and the ambient temperature reaches a predetermined temperature threshold; the ambient temperature includes: the indoor environment temperature is detected by a temperature sensor on the air conditioner or a temperature sensing bulb at the air inlet of the air conditioner;
if so, determining whether the infrared thermopile sensor has a fault according to whether the number of the thermopile elements meeting the preset condition reaches the preset number;
and if the infrared thermopile sensor is determined to be in fault, controlling the infrared thermopile sensor to recover to the initial position.
2. The method of claim 1, further comprising:
and if the infrared thermopile sensor is determined not to have a fault, carrying out value re-taking on the temperature value detected by the thermopile element meeting the preset condition according to the temperature value detected by the thermopile element adjacent to the thermopile element meeting the preset condition in the thermopile element array.
3. The method of claim 2, wherein the re-valuating the temperature value detected by the thermopile element satisfying the predetermined condition according to the temperature value detected by the thermopile element adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array comprises:
taking the highest temperature value in the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array as the temperature value detected by the thermopile element satisfying the predetermined condition;
or, the average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array is used as the temperature value detected by the thermopile element satisfying the predetermined condition.
4. A method according to any one of claims 1 to 3, wherein the predetermined temperature threshold is in the range 3 ℃ to 6 ℃.
5. The method of any one of claims 1-3, wherein a ratio of the predetermined number to a total number of thermopile elements in the thermopile element array is within a predetermined range.
6. The method of claim 4, wherein a ratio of the predetermined number to a total number of thermopile elements in the thermopile element array is within a predetermined range.
7. The method of any of claims 1-3, 6, further comprising:
and if the infrared thermopile sensor is determined to have a fault, displaying fault prompt information.
8. The method of claim 4, further comprising:
and if the infrared thermopile sensor is determined to have a fault, displaying fault prompt information.
9. The method of claim 5, further comprising:
and if the infrared thermopile sensor is determined to have a fault, displaying fault prompt information.
10. The method of claim 7, wherein displaying a fault notification message comprises: and displaying the fault prompt information in a circulating mode within preset time.
11. The method of claim 8 or 9, wherein displaying a fault notification message comprises: and displaying the fault prompt information in a circulating mode within preset time.
12. The utility model provides a fault detection device of infrared thermopile sensor, its characterized in that, infrared thermopile sensor is the infrared thermopile sensor of air conditioner, includes:
a detection unit for detecting whether there is a thermopile element satisfying a predetermined condition in a thermopile element array of the infrared thermopile sensor, the predetermined condition including: the absolute value of the difference between the detected temperature value and the ambient temperature reaches a predetermined temperature threshold; the ambient temperature includes: the indoor environment temperature is detected by a temperature sensor on the air conditioner or a temperature sensing bulb at the air inlet of the air conditioner;
a determination unit, configured to determine whether the infrared thermopile sensor is faulty according to whether the number of thermopile elements satisfying a predetermined condition reaches a predetermined number if the detection unit detects that there are thermopile elements satisfying the predetermined condition;
and the resetting unit is used for controlling the infrared thermopile sensor to recover to an initial position if the determining unit determines that the infrared thermopile sensor has a fault.
13. The apparatus of claim 12, further comprising:
and the value taking unit is used for re-taking the value of the temperature value detected by the thermopile element meeting the preset condition according to the temperature value detected by the thermopile element adjacent to the thermopile element meeting the preset condition in the thermopile element array if the infrared thermopile sensor is determined not to have faults by the determining unit.
14. The apparatus of claim 13, wherein the value taking unit is further configured to:
taking the highest temperature value in the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array as the temperature value detected by the thermopile element satisfying the predetermined condition;
or, the average value of the temperature values detected by the thermopile elements adjacent to the thermopile element satisfying the predetermined condition in the thermopile element array is used as the temperature value detected by the thermopile element satisfying the predetermined condition.
15. The apparatus according to any one of claims 12-14, wherein the predetermined temperature threshold has a value in the range of 3 ℃ to 6 ℃.
16. The apparatus of any one of claims 12-14, wherein a ratio of the predetermined number to a total number of thermopile elements in the thermopile element array is within a predetermined range.
17. The apparatus of claim 15, wherein a ratio of the predetermined number to a total number of thermopile elements in the array of thermopile elements is within a predetermined range.
18. The apparatus of any one of claims 12-14, 17, further comprising:
and the display unit is used for displaying fault prompt information if the determining unit determines that the infrared thermopile sensor has faults.
19. The apparatus of claim 15, further comprising:
and the display unit is used for displaying fault prompt information if the determining unit determines that the infrared thermopile sensor has faults.
20. The apparatus of claim 16, further comprising:
and the display unit is used for displaying fault prompt information if the determining unit determines that the infrared thermopile sensor has faults.
21. The apparatus of claim 18, wherein the display unit is further configured to: and displaying the fault prompt information in a circulating mode within preset time.
22. The apparatus of claim 19 or 20, wherein the display unit is further configured to: and displaying the fault prompt information in a circulating mode within preset time.
23. An infrared thermopile sensor comprising a failure detection means of an infrared thermopile sensor according to any one of claims 12-22.
24. A device comprising an infrared thermopile sensor of claim 23.
25. The apparatus of claim 24, wherein the apparatus comprises an air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384739.0A CN107167248B (en) | 2017-05-26 | 2017-05-26 | Infrared thermopile sensor and fault detection method, device and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384739.0A CN107167248B (en) | 2017-05-26 | 2017-05-26 | Infrared thermopile sensor and fault detection method, device and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107167248A CN107167248A (en) | 2017-09-15 |
| CN107167248B true CN107167248B (en) | 2020-05-26 |
Family
ID=59821879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710384739.0A Active CN107167248B (en) | 2017-05-26 | 2017-05-26 | Infrared thermopile sensor and fault detection method, device and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167248B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781273B (en) * | 2017-11-10 | 2021-06-29 | 昆山光微电子有限公司 | Infrared thermopile temperature sensor and self-testing, self-diagnosis and fault-tolerance method thereof |
| CN111219851A (en) * | 2020-02-25 | 2020-06-02 | 珠海格力电器股份有限公司 | Abnormity detection method and device of array type temperature sensor and air conditioner |
| CN111504477B (en) * | 2020-05-06 | 2021-03-26 | 珠海格力电器股份有限公司 | Infrared temperature sensor, manufacturing method thereof and temperature detection device |
| CN113357763B (en) * | 2021-05-20 | 2022-04-19 | 青岛海尔空调器有限总公司 | Method and device for detecting indoor temperature and intelligent air conditioner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653554U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Infrared thermogragh calibrating device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6001938B2 (en) * | 2012-07-09 | 2016-10-05 | アズビル株式会社 | Temperature distribution detection apparatus and method |
| CN104765354B (en) * | 2014-01-10 | 2018-02-09 | 北京博锐尚格节能技术股份有限公司 | A kind of method for diagnosing faults, the apparatus and system of sensor and executive component |
-
2017
- 2017-05-26 CN CN201710384739.0A patent/CN107167248B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653554U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Infrared thermogragh calibrating device |
Non-Patent Citations (1)
| Title |
|---|
| 基于288×4红外焦平面热成像系统盲元补偿的研究;范宏波;《中国优秀硕士学位论文全文数据库》;20121215;正文第1-39页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107167248A (en) | 2017-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107167248B (en) | Infrared thermopile sensor and fault detection method, device and equipment thereof | |
| CN110579294A (en) | Temperature correction method, cooking utensil and medium | |
| CN104166066B (en) | A kind of air-conditioning temperature-sensitive bag wrong detection method, device and air-conditioning | |
| CN107255349A (en) | Sensor temperature modification method, device and computer-readable recording medium | |
| CN110736184B (en) | Air conditioner and method and device for detecting abnormal type of air conditioner | |
| CN109323389A (en) | The dropping detection method and device of air-conditioning and the temperature sensor for air-conditioning | |
| CN107763795A (en) | Temperature sensor detection method and device applied to air-conditioning equipment | |
| CN105546712A (en) | Humidity detection method, device and system for dehumidifier | |
| JP2001227790A (en) | Device for diagnosing fault of sensor of air conditioner | |
| CN104331067A (en) | Constant-temperature and constant-humidity system fault detection method | |
| WO2022188398A1 (en) | Method and apparatus for controlling air conditioner, and air conditioner | |
| JP5918661B2 (en) | Equipment diagnostic device and setting change reminding method | |
| CN112782983A (en) | Self-learning-based high-temperature early warning threshold setting method and system | |
| CN110940032B (en) | Power module temperature detection control method and device, storage medium and air conditioner | |
| JP6723799B2 (en) | Air-conditioning outlet temperature estimation device and program | |
| CN106016619B (en) | A kind of central air-conditioning intelligence detection method | |
| JP2009254104A (en) | Conductor monitor for power receiving and distributing equipment | |
| KR102053191B1 (en) | Deterioration diagnostic apparatus and method | |
| CN104330103A (en) | Constant-temperature and constant-humidity system fault detection device | |
| CN106124232B (en) | A kind of central air-conditioning intelligence detecting system | |
| JP6584222B2 (en) | program | |
| CN104281174A (en) | Temperature control device and method for electronic device | |
| CN104503512B (en) | A kind of constant temperature node failure self checking method | |
| CN112594865B (en) | Fan fault processing method and device and electronic device | |
| WO2017019062A1 (en) | Protecting a computing device from environmental issues in an enclosure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |