WO2016206571A1 - 冰箱和红外传感器的测温误差修正方法 - Google Patents

冰箱和红外传感器的测温误差修正方法 Download PDF

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Publication number
WO2016206571A1
WO2016206571A1 PCT/CN2016/086191 CN2016086191W WO2016206571A1 WO 2016206571 A1 WO2016206571 A1 WO 2016206571A1 CN 2016086191 W CN2016086191 W CN 2016086191W WO 2016206571 A1 WO2016206571 A1 WO 2016206571A1
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Prior art keywords
value
temperature
infrared sensor
standard
corrected
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PCT/CN2016/086191
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English (en)
French (fr)
Inventor
李春阳
郭思志
王铭
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青岛海尔股份有限公司
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Application filed by 青岛海尔股份有限公司 filed Critical 青岛海尔股份有限公司
Priority to US15/737,757 priority Critical patent/US10712758B2/en
Priority to JP2017565228A priority patent/JP6476323B2/ja
Priority to EP16813687.7A priority patent/EP3315930A4/en
Publication of WO2016206571A1 publication Critical patent/WO2016206571A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
    • 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
    • G01J5/80—Calibration

Definitions

  • the invention relates to a refrigeration device, in particular to a method for correcting temperature measurement error of a refrigerator and an infrared sensor.
  • the refrigerator starts cooling when the temperature measured by the temperature sensor is higher than a preset value.
  • the user often accesses the stored items.
  • the items that are just placed are generally at a higher temperature, and the temperature of the articles is transmitted to the compartment through the heat radiation for a certain period of time, and the temperature is transmitted at the temperature of the articles.
  • the temperature sensed by the temperature sensor rises, and then the cold source device such as a compressor is started to cool the compartment. Therefore, the prior art refrigerator refrigeration control technology has a slow response and cannot meet the requirements of the user for the refrigeration effect of the refrigerator.
  • Another further object of the present invention is to improve the storage effect of the refrigerator on articles.
  • the present invention provides a temperature error correction method for an infrared sensor.
  • the method for correcting the temperature measurement error of the infrared sensor comprises: confirming that the infrared sensor is operating in a working state; acquiring a measured value of the working state obtained by sensing the temperature of the preset region by the infrared sensor; acquiring a correction constant corresponding to the infrared sensor, and correcting The constant is obtained by comparing the measured value of the infrared sensor in the corrected state with the standard temperature value; the measured value is corrected using the correction constant to obtain the temperature correction value.
  • the step of obtaining the correction constant comprises: acquiring a trigger signal entering the correction state, and turning off the component that affects the temperature of the preset region to enter the correction state; respectively acquiring the measurement value of the infrared sensor in the modified state And a standard temperature measuring device arranged in the preset area measures the standard temperature value; calculates a difference between the measured value in the corrected state and the standard temperature value; and uses the difference as the correction constant.
  • the step of acquiring the measured value of the infrared sensor in the modified state comprises: collecting the sensing result of the infrared sensor in the modified state every time the first predetermined time interval is obtained, obtaining the corrected sampling value; acquiring the first predetermined number of corrections Sampling the value, and filtering out the maximum corrected sample value and the minimum corrected sample value from the obtained corrected sample value; and calculating an average value of the corrected sample value after filtering the maximum corrected sample value and the minimum corrected sample value, and averaging As a measured value of the infrared sensor in the corrected state.
  • the method further includes: determining whether the corrected sample value belongs to a preset normal value interval; if yes, storing the corrected sample value in a preset modified sample value queue according to the sampling time, and correcting the sampling The length of the value queue is the first predetermined number; if not, the corrected sample value is set to invalid data and screened, and in the case where the first predetermined number of temperature sample values are invalid data, and the corrected measurement abnormality is output Prompt signal.
  • the step of acquiring the standard temperature value comprises: collecting the sensing result of the standard temperature measuring device once every second predetermined time to obtain a standard sampling value; acquiring a continuous second predetermined number of standard sampling values, and obtaining the obtained The maximum standard sample value and the minimum standard sample value are screened out in the standard sample values; and the average value of the standard sample values after the maximum standard sample value and the minimum standard sample value are screened out is calculated, and the average value is taken as the standard temperature value.
  • the method further includes: determining whether the quasi-sampled value belongs to a preset normal value interval; if yes, storing the standard sample value in a preset standard sample value queue according to the sampling time, the standard sampling The length of the value queue is the second predetermined number; if not, the standard sample value is set to invalid data and screened, and in the case where the second predetermined number of standard sample values are invalid data, and the standard measurement abnormality is output Prompt signal.
  • a refrigerator is also provided.
  • the refrigerator includes: a casing defining an interior of the storage compartment; an infrared sensor, the interior of the storage compartment is configured to sense a temperature of the stored item in the indoor storage space of the storage compartment; and a temperature calculation device And being connected to the infrared sensor, and configured to: confirm that the infrared sensor is in a working state; obtain a measured value in an operating state obtained by sensing the temperature of the storage space by the infrared sensor; obtain a correction constant corresponding to the infrared sensor, and obtain a correction constant The measured value of the infrared sensor in the corrected state is compared with the standard temperature value; the measured value is corrected using a correction constant to obtain a temperature correction value.
  • a standard temperature measuring device is disposed in the storage compartment and configured to measure a standard temperature value
  • a correction constant calculating device is respectively connected to the infrared sensor and the standard temperature measuring device, and configured to acquire the entering correction state
  • the trigger signal turns off the cold source device of the refrigerator to enter the correction state, respectively obtains the measured value of the infrared sensor in the modified state and the standard temperature value measured by the standard temperature measuring device; calculates the measured value and the standard temperature value in the corrected state Difference; the difference is used as the correction constant.
  • the storage compartment is partitioned into a plurality of storage spaces, each of which is provided with one or more infrared sensors for measuring the temperature of the stored articles therein; and the temperature calculation device, and A plurality of infrared sensors are respectively connected and configured to calculate temperature correction values of the plurality of storage spaces respectively, as a basis for separately controlling temperature of the plurality of storage spaces.
  • the refrigerator further includes: a split air supply device configured to distribute the cooling airflow from the cold source to the plurality of storage spaces; and a refrigeration control component configured to respectively adjust the temperature correction value of each storage space Comparing with the preset regional refrigeration opening temperature threshold for each storage space, and storing the temperature correction value greater than the regional cooling opening temperature threshold
  • the cooling status flag corresponding to the space is set to start, and the drive split air supply device is operated to provide a state of cooling airflow to the storage space identified as the started cooling state.
  • the method for correcting the temperature measurement error of the infrared sensor of the invention corrects the measured value of the infrared sensor in the working state by using a preset correction constant, reduces the influence of the absolute error of the infrared sensor on the temperature measurement, and improves the accuracy of the temperature measurement. Therefore, the measured value directly reflects the actual temperature of the items in the preset area, and provides an accurate control basis for subsequent related control.
  • the refrigerator of the present invention uses the above-mentioned measurement value accurately reflecting the temperature of the stored articles in the interior of the refrigerator as the control basis for the storage space partition cooling, and can accurately determine the position and temperature of the indoor heat source between the refrigerators, and facilitate the situation according to the heat source. Control to provide the best storage environment for food in the refrigerator and reduce nutrient loss of food.
  • FIG. 1 is a schematic diagram of a method for correcting a temperature measurement error of an infrared sensor according to an embodiment of the present invention
  • FIG. 2 is a flow chart showing a comparison of correction constants in a temperature error correction method of an infrared sensor according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of initialization of a temperature measurement error correction method of an infrared sensor applied to a refrigerator according to an embodiment of the present invention
  • FIG. 4 is a flow chart of determining a correction constant in a case where a temperature measurement error correction method of an infrared sensor is applied to a refrigerator according to an embodiment of the present invention
  • FIG. 5 is a flow chart of obtaining a measured value of an infrared sensor in a corrected state in a temperature error correction method of an infrared sensor according to an embodiment of the present invention
  • FIG. 6 is a flow chart of obtaining a measured value of an infrared sensor in a modified state in a temperature error correction method of an infrared sensor according to an embodiment of the present invention
  • Figure 7 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of a control unit of a refrigerator in accordance with one embodiment of the present invention.
  • Figure 9 is a schematic illustration of a refrigeration system of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 10 is a schematic structural view of a refrigeration system of a refrigerator according to an embodiment of the present invention.
  • Figure 11 is a flow chart showing the compartment compartmentalization refrigeration of the refrigerator in accordance with one embodiment of the present invention.
  • Embodiments of the present invention provide a method for correcting temperature measurement error of an infrared sensor.
  • 1 is a schematic diagram of a method for correcting a temperature measurement error of an infrared sensor according to an embodiment of the present invention, the method for correcting temperature measurement error of the infrared sensor includes:
  • Step S102 confirming that the infrared sensor is in an operating state
  • Step S104 Acquire a measured value in an operating state obtained by sensing, by the infrared sensor, a temperature of the preset area;
  • Step S106 acquiring a correction constant corresponding to the infrared sensor
  • step S108 the measured value is corrected using the correction constant to obtain a temperature correction value.
  • the infrared sensor used in the method of the embodiment does not emit infrared rays, but passively receives the infrared rays and the background infrared rays emitted by the articles in the sensing range, and directly senses the temperature of the articles inside the preset region, and converts them into corresponding electrical signals.
  • the infrared sensor can quickly measure the temperature by directly receiving the infrared rays emitted by the article, and does not need the article to conduct its temperature around the temperature sensor, so as to sense the temperature change and respond. Fast and accurate.
  • the infrared sensor can limit the rectangular field of view by setting the infrared guiding component, and improve the detection accuracy by limiting the detection orientation to accurately detect the preset area.
  • the infrared sensor has a fast response speed, but there is generally an absolute error in the temperature measurement accuracy, and the absolute error is in the range of ⁇ 3 °C.
  • the absolute error is essentially a fixed value. According to the above characteristics of the infrared sensor, the temperature error correction method of the infrared sensor of the present embodiment obtains a correction constant by comparing the measured value of the infrared sensor in the modified state with the standard temperature value, and the correction constant reflects the absolute value of the infrared sensor. error.
  • the working state in step S102 may be an operating state in which the infrared sensor performs temperature measurement to distinguish it from the corrected state of the infrared sensor.
  • FIG. 2 is a flow chart showing alignment correction constants in a temperature error correction method of an infrared sensor according to an embodiment of the present invention.
  • the process of comparing the corrected constants includes the following steps:
  • Step S202 acquiring a trigger signal that enters the correction state, and turning off the component that affects the temperature of the preset region to enter the correction state;
  • Step S204 respectively obtaining the measured value of the infrared sensor in the modified state and the standard temperature measuring device disposed in the preset area, and measuring the standard temperature value;
  • Step S206 calculating a difference between the measured value in the corrected state and the standard temperature value, the difference being the correction constant.
  • the trigger signal may be an instruction for performing infrared sensor correction according to an external input, or may be an initial time. Electrical power-on signal.
  • the components that affect the temperature of the preset area may include various types of fans, cold sources, and the like.
  • step S204 acquires the measured value of the infrared sensor in the modified state and obtains the standard temperature value, which may be calculated by using the multi-sampled value average. The way to proceed.
  • the step of obtaining the measured value of the infrared sensor in the modified state may include: collecting the sensing result of the infrared sensor in the modified state every time the first predetermined time interval is obtained, obtaining the corrected sampling value; and acquiring the continuous first predetermined number of the corrected sampling value, And filtering out the maximum corrected sample value and the minimum corrected sample value from the obtained corrected sample values; and calculating an average value of the corrected sample values after screening the maximum corrected sample value and the minimum corrected sample value, and using the average value as an infrared sensor The measured value in the corrected state.
  • the method further includes: determining whether the corrected sampling value belongs to a preset normal value interval; if yes, storing the corrected sampling value in the preset according to the sampling time.
  • the length of the corrected sample value queue is the first predetermined number; if not, the corrected sample value is set to invalid data and screened, and the first predetermined number of temperature sample values are invalid data continuously. In the case, the correction measurement abnormality warning signal is output.
  • the step of obtaining the standard temperature value may include: collecting the sensing result of the standard temperature measuring device once every second predetermined time to obtain a standard sampling value; acquiring a continuous second predetermined number of standard sampling values, and obtaining the obtained standard sampling value The maximum standard sample value and the minimum standard sample value are screened out; and the average value of the standard sample values after the maximum standard sample value and the minimum standard sample value are screened is calculated, and the average value is taken as the standard temperature value.
  • the method further includes: determining whether the quasi-sampling value belongs to a preset normal value interval; if yes, storing the standard sampling value in order according to the sampling time.
  • the length of the standard sample value queue is the second predetermined number; if not, the standard sample value is set to invalid data and screened, and the second predetermined number of standard sample values are consecutive In the case of invalid data, a standard measurement abnormality warning signal is output.
  • the method for correcting the temperature measurement error of the infrared sensor of the present embodiment can be preferentially applied to the error correction of the infrared sensor for measuring the temperature of the stored item in the refrigerator, so as to ensure the accuracy of the temperature measurement in the refrigerator compartment, so as to be controlled according to the condition of the heat source. To provide the best storage environment for the food in the refrigerator and reduce the nutrient loss of food.
  • the process in which the correction constant is determined can be performed after the assembly of the refrigerator on the production line.
  • the temperature in the storage compartment of the refrigerator is basically uniform and can be calibrated before the refrigeration performance test.
  • the above standard temperature measuring means may be a temperature measuring means placed in the storage compartment of the refrigerator.
  • a thermistor for measuring the ambient temperature inside the refrigerator compartment may be used as the standard temperature measuring means.
  • the refrigerator storage room is equipped with NTC (Negative Temperature Coefficient), and the absolute error is generally within ⁇ 0.5 °C, which can meet the correction correction.
  • FIG. 3 is a schematic diagram of initialization of a temperature measurement error correction method of an infrared sensor applied to a refrigerator according to an embodiment of the present invention, and the refrigerator may sequentially run the following steps after power-on operation:
  • step S302 the refrigerator is powered on and the parameters are initialized.
  • the initialization includes: separately correcting the sample value queue and clearing the standard sample value queue.
  • the queue length of the corrected sample value queue is a first predetermined number S1, and the queue length of the standard sample value queue is a second predetermined number S2.
  • Step S304 determining whether to trigger the determination process of the infrared sensor correction constant, and if so, executing the calculation of the infrared correction constant flow of step S306; if not, performing the refrigerator refrigeration control of step S308.
  • Step S304 is determined by detecting the stored value of the storage unit of the correction constant after acquiring the power-on signal, and if the stored value is the default value, it indicates that the correction constant has not been determined. If the stored value is modified, the correction constant has been determined and can be directly entered into the refrigerator command control flow.
  • FIG. 4 is a flow chart of determining a correction constant in a case where a temperature measurement error correction method of an infrared sensor is applied to a refrigerator according to an embodiment of the present invention.
  • the process includes:
  • Step S402 starting a determination process of a correction constant of the infrared sensor of the refrigerator
  • Step S404 the cold source system is turned off, the fan is turned off, and the indoor light is turned off to enter the correction state; the environment inside the refrigerator compartment is stabilized;
  • Step S406 obtaining a measured value IR(out) of the infrared sensor in a modified state
  • step S408 a standard temperature value TC(out) is obtained.
  • step S412 the correction constant IR (amend) is saved for use in temperature measurement in the refrigerator.
  • the above steps S406 and S408 can acquire the IR (out) and the TC (out) by using the multi-sampled value averaging.
  • FIG. 5 is a flow chart of obtaining a measured value of an infrared sensor in a corrected state in a temperature error correction method of an infrared sensor according to an embodiment of the present invention. The process includes:
  • Step S502 the infrared sensor is activated in the correction state of the measured value IR (out);
  • Step S504 collecting the sensing result of the infrared sensor to obtain a corrected sampling value T1;
  • Step S506 it is determined whether T1 belongs to the normal value interval, for example, it is judged whether it satisfies -40 ⁇ T1 ⁇ 60, and if so, it is determined as normal data, step S508 is performed, and if it is denied that the abnormal data is determined, step S520 is performed;
  • step S510 it is determined whether the number of the corrected sample values meets the requirement, that is, whether s1>S1 is satisfied, and when S1 is 10, it is determined whether s1 is greater than 10; if yes, the acquisition is completed, step S512 is performed, and if not, the next acquisition is performed. Go to step S516;
  • Step S514 sorting IRout(0), IRout(1), ..., IRout(S1), filtering out the minimum sampled value IRoutmin and the maximum sampled value IRoutmax, and the remaining S-2 values are averaged IRout, and the calculation formula is:
  • IRout (IRout(0)+IRout(1)+...+IRout(S1)–Iroutmax-IRoutmin)/(S1-2);
  • Step S522 it is determined whether a continuous predetermined number of corrected acquisition values are invalid data, that is, whether Err1>S1 is determined, if step S524 is performed, if not, return to step S504;
  • step S524 an abnormality prompt is output, and the measurement is stopped.
  • the IRout obtained through the above process eliminates the measurement fluctuations and abnormal data of the infrared sensor and is more accurate.
  • the acquisition frequency can be set to be collected every 0.1 seconds, and the length of the corrected sample value storage queue is set to 10. The specific value can be adjusted according to the test result.
  • FIG. 6 is a flow chart of obtaining a measured value of an infrared sensor in a corrected state in a temperature error correction method of an infrared sensor according to an embodiment of the present invention. The process includes:
  • Step S602 the infrared sensor is activated in the correction state of the measured value IR (out);
  • Step S604 collecting the measurement result of the ambient temperature sensor inside the refrigerator compartment to obtain a standard sampling value T2;
  • Step S606 it is determined whether T2 belongs to the normal value interval, for example, to determine whether it meets -40 ⁇ T2 ⁇ 60, if yes, determined as normal data, step S608 is performed, if the denial is determined as abnormal data, step S620 is performed;
  • step S610 it is determined whether the number of standard sampling values reaches the requirement, that is, whether s2>S1 is satisfied, and when S2 is 20, it is determined whether s1 is greater than 20; if yes, the acquisition is completed, step S612 is performed, and if not, the next acquisition is performed. Go to step S616;
  • Step S614 sorting TCout(0), TCout(1), ..., TCout(S2), screening out the minimum sampled value TCoutmin and the maximum sampled value TCoutmax, and the remaining S2-2 values are averaged TCout, and the calculation formula is:
  • Step S622 it is determined whether a continuous predetermined number of standard sample values are invalid data, that is, it is determined whether Err2>S2 is present, if step S624 is performed, if not, return to step S604;
  • step S624 an abnormality prompt is output, and the measurement is stopped.
  • the TCout obtained through the above process eliminates the measurement fluctuations of the inter-room ambient temperature sensor (such as NTC) and the abnormal data, which is more accurate.
  • the acquisition frequency can be set to be collected every 1 millisecond, and the length of the modified sampling value storage queue is set to 20, and the specific value can be adjusted according to the test result.
  • the initial power-on test is completed.
  • the resulting correction constant IR (amend) can be used in the refrigerator for subsequent testing or temperature measurement.
  • fault detection can be performed on the infrared sensor and the ambient temperature sensor of the refrigerator compartment.
  • the embodiment further provides a refrigerator which uses the temperature measurement error correction method of the infrared sensor of the above embodiment to obtain a temperature correction value as a basis for temperature control.
  • Figure 7 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention
  • Figure 8 is a schematic block diagram of a control unit of a refrigerator in accordance with one embodiment of the present invention.
  • the refrigerator may generally include a case 110, an infrared sensor 130, and a temperature calculation device 160, a refrigeration control assembly 170, and a standard temperature measuring device 180.
  • the box body 110 includes a top wall, a bottom wall, a rear wall and two left and right side walls.
  • a door body (not shown) is disposed in front of the box body 110, and the door body can be connected to the side wall by a pivot structure.
  • the interior of the tank 110 defines a storage compartment (eg, a refrigerating compartment).
  • the storage compartment may be partitioned into a plurality of storage spaces 140.
  • the infrared sensor 130 is disposed inside the storage compartment and is configured to sense the temperature of the stored item in the indoor storage space of the storage compartment.
  • the number of infrared sensors 130 is set in accordance with the number of storage spaces 140.
  • each storage space 140 can be provided with an infrared sensor 130.
  • an infrared sensor 130 may not fully sense the overall condition of the storage space 140, and a plurality of infrared sensors 130 may be disposed in one storage space 140.
  • a preferred way is to arrange two infrared sensors respectively arranged inside the two side walls of the box to jointly measure the temperature of the storage space 140.
  • Another way of configuring the infrared sensor 130 is to use the transmission (screw drive, timing belt drive, etc.) to drive the infrared sensor 130 to move in a plurality of storage spaces to measure the temperatures of the plurality of storage spaces 140, respectively. .
  • the inventor has conducted a large number of tests on the installation position of the infrared sensor 130, and the infrared sensor 130 is preferably selected. Installation location and its preferred configuration.
  • the infrared sensor 130 is at a height of one-half of the height of the storage space 140 at its height (more preferably two-thirds of the overall height of the storage space 140), each of which is higher than or equal to two-thirds of the overall height of the storage space 140.
  • the infrared receiving center line of the infrared sensors 130 is set at an angle ranging from 70 degrees to 150 degrees with respect to the vertical direction (more preferably, the range is 76 degrees to 140 degrees); and the level of the infrared receiving center line of each of the infrared sensors 130
  • the angle between the projection and the side wall of the projection is set to 30 degrees to 60 degrees (more preferably 30 degrees to 45 degrees).
  • the infrared sensor 130 does not emit infrared rays, but passively receives infrared rays and background infrared rays emitted by the articles in the sensing range, directly senses the change region and temperature of the temperature of the articles in the storage space 140, and converts them into corresponding electrical signals.
  • the storage compartment of the refrigerator of the present invention may be partitioned into a plurality of storage spaces 140.
  • the rack assembly 120 separates the storage compartment into a plurality of storage spaces 140.
  • the shelf assembly 120 includes at least one horizontally disposed partition to divide the compartment into a plurality of storage spaces 140 in a vertical direction.
  • the rack assembly 120 includes a first partition, a second partition, and a third partition, wherein a first storage space is formed above the first partition, and between the first partition and the second partition A second storage space is formed, and a third storage space is formed between the second partition and the third partition.
  • the number of partitions in the rack assembly 120 and the number of storage spaces 140 may be pre-configured according to the volume of the refrigerator and the requirements for use.
  • Each storage space 140 is provided with one or more infrared sensors 130 for measuring the temperature of the items stored therein.
  • the temperature calculation device 160 is connected to the infrared sensor 130 and configured to: confirm that the infrared sensor 130 is in an operating state; acquire a measurement value in an operating state in which the infrared sensor 130 senses the temperature of the storage space 140; and acquire an infrared sensor. 130 corresponding correction constant IR (amend), correction constant IR (amend) by comparing the measured value IR (out) of the infrared sensor 130 in the modified state with the standard temperature value TC (out); using the correction constant pair measurement The value is corrected to obtain a temperature correction value.
  • the temperature calculation device 160 may separately perform temperature calculations on the infrared sensors 130 in the plurality of storage spaces to obtain actual temperatures of the items stored in the plurality of storage spaces, respectively.
  • the above working state refers to a state in which the infrared sensor 130 performs temperature measurement to distinguish it from the corrected state of the infrared sensor 130.
  • the temperature calculation device 160 can also acquire the measured values in the operating state in a manner similar to that of FIGS. 5 and 6, to eliminate the influence of the measurement fluctuations. If the measured values in the continuous predetermined number of working states are all invalid data, the infrared sensor is stopped to sense the temperature in the preset area, and the temperature measuring abnormality prompt signal is output. The abnormality alert signal can be displayed through the display screen of the refrigerator or through a network to a user pre-bound with the refrigerator. The mobile terminal reports.
  • one or more infrared sensors 130 for measuring the temperature of the stored articles therein may be disposed in each of the storage spaces 140, respectively.
  • the temperature calculation device 160 is respectively connected to the infrared sensors 130 respectively arranged in the plurality of storage spaces 140.
  • the temperature calculation device 160 can separately calculate the temperature correction values of the plurality of storage spaces as the basis for separately controlling the temperature of the plurality of storage spaces 140.
  • the temperature calculation device 160 may calculate a difference between the maximum value and the minimum value among the temperature values measured by the plurality of infrared sensing devices of the same storage space 140, according to the difference.
  • the magnitude of the value determines the maximum weight coefficient k and the minimum weight coefficient m, and the maximum weight coefficient k and the minimum weight coefficient m are respectively used as the weight coefficients of the temperature maximum value and the temperature minimum value, and the temperature maximum value and the temperature minimum value are respectively performed.
  • the weighted sum is calculated and the result of the weighted sum calculation is taken as the sensed temperature value of the storage space 140.
  • the IRT is used as a basis for cooling control of the storage space 140.
  • the refrigerator of this embodiment may further include: a split air supply device configured to distribute the cooling airflow from the cold source to the plurality of storage spaces 140.
  • the refrigeration control component 170 can be configured to respectively compare the temperature correction value of each storage space 140 with a predetermined regional cooling on temperature threshold of each storage space 140, and to store the temperature correction value greater than the regional refrigeration on temperature threshold.
  • the cooling state indicator corresponding to the object space is set to be activated, and the driving split air supply device is operated to provide a state of cooling airflow to the storage space indicated as the cooling state.
  • FIG. 9 is a schematic diagram of a refrigeration system of a refrigerator according to an embodiment of the present invention
  • FIG. 10 is a schematic structural view of a refrigeration system of a refrigerator according to an embodiment of the present invention.
  • the refrigeration system includes: a duct assembly, a compressor, a refrigerating damper 250, a fan 230, and the like.
  • the refrigerator can form a refrigeration cycle via a refrigerant pipe by means of an evaporator, a compressor, a condenser, a throttle element, and the like, and after the compressor is started, the evaporator releases the cooling amount.
  • the evaporator can be placed in the evaporator chamber.
  • the air cooled by the evaporator is sent to the storage chamber via the fan 230.
  • the interior of the storage compartment of the refrigerator can be divided into a greenhouse, a refrigerating compartment and a freezing compartment, wherein the uppermost layer of the storage compartment is a refrigerating compartment, the lower compartment of the refrigerating compartment is a greenhouse, and the lower compartment of the greenhouse is a freezing compartment, and the evaporator compartment can be set.
  • the fan 230 is disposed at an outlet above the evaporator chamber.
  • the supply air path of the air cooled by the evaporator includes a temperature-changing supply air path connected to the variable greenhouse for supplying air to the greenhouse, and a freezing supply air path for connecting the freezer to the freezer compartment, And a refrigerating supply air passage connected to the refrigerating compartment for supplying air to the refrigerating compartment.
  • the air duct assembly is a wind path system that supplies air to the refrigerating chamber, and the air duct assembly includes: a duct bottom plate 210, a shunt air blowing device 220, and a fan 230.
  • the air duct floor 210 defines a plurality of air passages 214 respectively leading to the plurality of storage spaces 140, and each of the air ducts 214 leads to a different storage space 140, for example, in the embodiment shown in FIG. Having a first air supply opening 211 leading to the first storage space, a second air supply opening 212 leading to the second storage space, and a passage to the third storage space The third air supply port 213.
  • the branch air supply device 220 is disposed in the refrigerating supply air path, and the refrigerating supply air path is formed on the back surface of the refrigerating chamber, and the shunt air supply device 220 includes an air inlet 221 connected to a cold source (for example, an evaporator chamber) and respectively A plurality of distribution ports 222 connected by the air path 214.
  • the dispensing ports 222 are connected to different air paths 214, respectively.
  • the shunting device 220 can control the cold air from the cold source generated by the fan 230 to be distributed to different dispensing ports 222 through the air inlet 221, thereby entering different storage spaces of the refrigerating chamber through different air paths 214. 140.
  • the shunting air supply device 220 can centrally distribute the refrigerating airflow from the cold source instead of separately providing different air ducts for the different storage spaces 140, thereby improving the cooling efficiency.
  • the shunting device 220 may include a housing 221, an adjusting member 224, and a cover plate 225.
  • the casing 221 is formed with an air inlet 221 and a distribution port 222, and the cover plate 225 is assembled with the casing 221 to form a branch air supply chamber.
  • the adjusting member 224 is disposed in the shunt air supply chamber.
  • the adjusting member 224 has at least one shielding portion 226.
  • the shielding portion 226 is movably disposed in the housing 221 and configured to control the plurality of dispensing openings 222 to adjust the respective air outlet areas of the plurality of dispensing openings 222. .
  • the air supply of the fan 230 can be distributed to the different storage spaces 140 through the adjustment member 224.
  • the split air supply device 220 can realize up to seven air supply states, for example, can be included for the first air supply port 211.
  • the distribution port 222 is separately opened for separately opening to the distribution port 222 of the second air supply port 212 for separately opening to the distribution port 222 of the third air supply port 213 for the distribution port to the first air supply port 211 and the second air supply port 212
  • the opening 222 is simultaneously opened, and the distribution ports 222 of the first air supply port 211 and the third air supply port 213 are simultaneously opened, and the distribution ports 222 to the second air supply port 212 and the third air supply port 213 are simultaneously opened and supplied to the first air supply port. 211.
  • the distribution ports 222 for the second air supply port 212 and the third air supply port 213 are simultaneously opened.
  • the branch air supply device 220 may be provided with two distribution ports, and at the same time, three air supply states may be provided.
  • the adjusting member 224 rotates, and the angle of rotation is determined according to the required air volume, and the guiding port formed between the shielding portions 226 is aligned with the corresponding dispensing opening 222.
  • the housing 221 is provided with a motor 227, two stop posts 228, and a positioning seat recess 243 in the shunt air supply chamber.
  • the function of the stop post 228 is that the movement of the adjusting member 224 is more accurate during the operation of the motor 227. And each time the power is applied or after a period of time, the adjustment member 224 is moved to the starting stop post 228, and is rotated to the designated rotational position.
  • the function of the positioning seat recess 243 is to ensure that the adjustment member 224 is positioned at an angular position of every 30 degrees of rotation.
  • the adjusting member 224 is provided with a coil spring 229 (this coil spring 229 can also be replaced by a torsion spring), a weight 241 and a positioning pin 245.
  • a section of the disc spring piece 229 is fixed to the cover plate 225, and the other end is biased to apply a reverse force as the adjusting member 224 is operated, and a certain biasing force is always applied to the adjusting member 224, thereby suppressing the stepping by the direct current.
  • the pivot portion has a weight portion extending in a direction radially opposite to the body of the adjusting member 224, and a weight 241 is disposed at a distal end of the weight portion to eliminate the bias torque.
  • the positioning pin 245 is movable up and down (by a compression spring) to the adjustment member 224.
  • the housing 221 is provided with a positioning corresponding thereto Seat groove 243.
  • the refrigerator of the embodiment is described by taking an compartment having three storage spaces 140 as an example.
  • the infrared sensing component 130, the airway 214, and the distribution may be allocated according to specific usage requirements.
  • the number of ports 222 and air supply ports are set to meet the requirements of different refrigerators. For example, according to the above description, it is easy to draw a blowing system of a refrigerating compartment having two storage spaces 140.
  • the refrigeration control assembly 170 drives the shunt blower to operate to provide a state of refrigerated airflow to the storage space 140 identified as being activated by the refrigeration state.
  • the control is more precise, and the refrigeration control is ensured according to the storage condition of the storage space 140, thereby avoiding waste of electric energy caused by cooling of the entire compartment.
  • the refrigerator of the embodiment can also quickly cool the items with higher temperature, reduce the influence of the higher temperature items on other items already stored, improve the storage effect of the refrigerator freezer, and reduce the nutrient loss of the food.
  • FIG 11 is a flow chart showing the compartment compartmentalization refrigeration of the refrigerator in accordance with one embodiment of the present invention.
  • Step S1102 determining that the compartment enters a cooling state
  • Step S1104 Acquire a temperature correction value of the storage space sensed by the plurality of infrared sensors, where the temperature correction value directly reflects the temperature of the stored item in the storage space;
  • Step S1106 respectively comparing the temperature correction value of each storage space with a preset regional cooling on temperature threshold value of each storage space;
  • Step S1108 setting a cooling state identifier corresponding to the storage space whose temperature correction value is greater than the regional cooling on temperature threshold to be started;
  • step S1110 the bypass air blowing device is driven to a state in which the cooling airflow is provided to the storage space indicated as the cooling state.
  • the step of determining that the refrigerating compartment enters the cooling state in the above step S1102 further includes: obtaining an average temperature of the indoor environment (for example, a temperature measured by using NTC); determining whether the average temperature of the indoor environment is greater than or equal to a preset overall cooling opening temperature threshold; if yes, The refrigerating damper provided between the cold source and the branch air supply device is turned on to bring the compartment into a cooling state.
  • an average temperature of the indoor environment for example, a temperature measured by using NTC
  • determining whether the average temperature of the indoor environment is greater than or equal to a preset overall cooling opening temperature threshold if yes, The refrigerating damper provided between the cold source and the branch air supply device is turned on to bring the compartment into a cooling state.
  • the refrigerating damper in the case that the average temperature of the indoor environment is less than the preset overall cooling on temperature threshold, it is determined whether the refrigerating damper is already in an open state; if so, determining the average temperature of the indoor environment and/or the temperature correction value of each storage space Whether the preset refrigerating compartment cooling stop condition is satisfied; when the inter-chamber cooling stop condition is satisfied, the refrigerating damper is closed.
  • the above compartment refrigeration stop condition may include: the temperature correction value of each storage space is smaller than a preset regional cooling shutdown temperature threshold of each storage space, wherein the regional cooling shutdown temperature threshold of each storage space is smaller than the regional refrigeration The temperature threshold is turned on; or the indoor ambient average temperature is less than the preset overall cooling off temperature threshold.
  • Another optional compartment refrigeration stop condition includes: when the average indoor temperature is less than a preset overall refrigeration shutdown temperature threshold, the temperature correction value of each storage space is smaller than each storage space.
  • the regional cooling on temperature threshold is set, wherein the regional cooling off temperature threshold of each storage space is smaller than the regional cooling on temperature threshold, or the difference between the overall cooling off temperature threshold minus the indoor ambient average temperature is greater than a preset margin value .
  • the temperature correction value of each storage space may also be compared with a preset regional cooling shutdown temperature threshold of each storage space, wherein the regional cooling shutdown temperature threshold of each storage space is smaller than the regional cooling opening.
  • the temperature threshold is set; and the cooling state identifier corresponding to the storage space whose temperature correction value is smaller than the regional cooling off temperature threshold is set to off.
  • the temperature correction value obtained by the temperature measurement error correction method of the infrared sensor of the embodiment is used for the refrigeration control, the temperature measurement accuracy is improved, and the refrigeration control can be performed in time and effectively to avoid the high temperature.
  • the influence of the object on the surrounding storage space improves the storage effect of the refrigerator freezer, reduces the nutrient loss of the food, and avoids the waste of electric energy caused by the cooling of the entire compartment.

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Abstract

一种冰箱和红外传感器（130）的测温误差修正方法。其中红外传感器（130）的测温误差修正方法，包括：确认红外传感器（130）运行于工作状态（S102）；获取红外传感器（130）对预设区域的温度进行感测得到的工作状态下的测量值（S104）；获取红外传感器（130）对应的修正常数（S106），修正常数通过对修正状态下红外传感器（130）的测量值与标准温度值进行比对得出；使用修正常数对测量值进行修正，以得到温度修正值（S108）。利用该方法可以减小红外传感器（130）绝对误差对温度测量影响，提高了温度测量的准确性，使得测量值直接反映预设区域内部物品的实际温度，为后续相关控制提供了准确的控制依据。

Description

冰箱和红外传感器的测温误差修正方法 技术领域
本发明涉及制冷设备，特别是涉及一种冰箱和红外传感器的测温误差修正方法。
背景技术
现有冰箱通常利用布置于间室内部的温度传感器感测其布置位置周围的温度，将该温度作为制冷控制的依据。
然而，使用这种控制方式进行冰箱控制时，在温度传感器测量的温度高于预设值时，冰箱启动制冷。在冰箱的实际使用过程中，使用者会经常对所存物品进行存取，刚放入的物品一般温度较高，物品的温度通过热辐射的方式传导至间室需要一定的时间，在物品温度传导至间室内部环境后，温度传感器感测的温度才会上升，然后启动压缩机等冷源装置对间室进行制冷。因此现有技术的冰箱制冷控制技术，响应较慢，不能满足使用者对冰箱制冷效果的要求。
发明内容
本发明的一个进一步目的是要提高温度的测量精度。
本发明的另一进一步目的是提高冰箱对物品的储藏效果。
特别地，本发明提供了一种红外传感器的测温误差修正方法。该红外传感器的测温误差修正方法，包括：确认红外传感器运行于工作状态；获取红外传感器对预设区域的温度进行感测得到的工作状态下的测量值；获取红外传感器对应的修正常数，修正常数通过对修正状态下红外传感器的测量值与标准温度值进行比对得出；使用修正常数对测量值进行修正，以得到温度修正值。
可选地，比对得出所述修正常数的步骤包括：获取进入修正状态的触发信号，并关闭影响预设区域的温度的部件以进入修正状态；分别获取红外传感器在修正状态下的测量值以及布置于预设区域内的标准温度测量装置测量得出标准温度值；计算修正状态下的测量值与标准温度值的差值；将差值作为修正常数。
可选地，获取红外传感器在修正状态下的测量值的步骤包括：每间隔第一预定时间采集一次红外传感器在修正状态下的感测结果，得到修正采样值；获取连续第一预定数量的修正采样值，并从获取到的修正采样值中筛除最大修正采样值和最小修正采样值；以及计算筛除最大修正采样值和最小修正采样值后的修正采样值的平均值，并将平均值作为红外传感器在修正状态下的测量值。
可选地，在得到修正采样值之后还包括：判断修正采样值是否属于预设的正常数值区间；若是，则将修正采样值按照采样时间依次存储于预设的修正采样值队列中，修正采样值队列的长度为所述第一预定数量；若否，将修正采样值设置为无效数据并筛除，在连续第一预定数量的温度采样值均为无效数据的情况下，并输出修正测量异常提示信号。
可选地，获取标准温度值的步骤包括：每间隔第二预定时间采集一次标准温度测量装置的感测结果，得到标准采样值；获取连续第二预定数量的标准采样值，并从获取到的标准采样值中筛除最大标准采样值和最小标准采样值；以及计算筛除最大标准采样值和最小标准采样值后的标准采样值的平均值，并将平均值作为标准温度值。
可选地，在得到标准采样值之后还包括：判断准采样值是否属于预设的正常数值区间；若是，则将标准采样值按照采样时间依次存储于预设的标准采样值队列中，标准采样值队列的长度为所述第二预定数量；若否，将标准采样值设置为无效数据并筛除，在连续第二预定数量的标准采样值均为无效数据的情况下，并输出标准测量异常提示信号。
根据本发明的另一个方面，还提供了一种冰箱。该冰箱包括：箱体，内部限定有储物间室；红外传感器，设置储物间室内部，配置成对储物间室内预设储物空间中存储物品的温度进行感测；以及温度计算装置，与红外传感器连接，并配置成：确认红外传感器运行于工作状态；获取红外传感器对储物空间的温度进行感测得到的工作状态下的测量值；获取红外传感器对应的修正常数，修正常数通过对修正状态下红外传感器的测量值与标准温度值进行比对得出；使用修正常数对所述测量值进行修正，以得到温度修正值。
可选地，标准温度测量装置，设置于储物间室内，并配置成测量得出标准温度值；以及修正常数计算装置，与红外传感器以及标准温度测量装置分别连接，并配置成获取进入修正状态的触发信号，关闭冰箱的冷源设备以进入修正状态，分别获取红外传感器在修正状态下的测量值以及标准温度测量装置测量得出标准温度值；计算修正状态下的测量值与标准温度值的差值；将差值作为修正常数。
可选地，储物间室被分隔为多个储物空间，每个储物空间内分别设置有一个或多个用于测量其内存储物物品的温度的红外传感器；并且温度计算装置，与多个红外传感器分别连接，并配置成：分别计算得出多个储物空间的温度修正值，以作为对多个储物空间分别进行温度控制的依据。
可选地，上述冰箱还包括：分路送风装置，配置成将来自于冷源的制冷气流分配至多个储物空间；以及制冷控制组件，配置成分别将每个储物空间的温度修正值与每个储物空间各自预设的区域制冷开启温度阈值进行比较，将温度修正值大于区域制冷开启温度阈值的储物 空间对应的制冷状态标识设置为启动，并且驱动分路送风装置运行至向制冷状态标识为启动的储物空间提供制冷气流的状态。
本发明的红外传感器的测温误差修正方法，对红外传感器在工作状态下的测量值，使用预设的修正常数进行修正，减小红外传感器绝对误差对温度测量影响，提高了温度测量的准确性，使得测量值直接反映预设区域内部物品的实际温度，为后续相关控制提供了准确的控制依据。
进一步地，本发明的冰箱使用上述准确反映冰箱间室内部储存物品温度的测量值作为储物空间分区制冷的控制依据，可以精确地确定出冰箱间室内热源的位置和温度，便于根据热源的情况进行控制，为冰箱内的食物提供最佳的储存环境，减少食物的营养流失。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的红外传感器的测温误差修正方法的示意图；
图2是根据本发明一个实施例的红外传感器的测温误差修正方法中比对得出修正常数的流程图；
图3是根据本发明一个实施例的红外传感器的测温误差修正方法应用于冰箱的初始化示意图；
图4是根据本发明一个实施例的红外传感器的测温误差修正方法应用于冰箱情况下确定修正常数的流程图；
图5是根据本发明一个实施例的红外传感器的测温误差修正方法中获取红外传感器在修正状态下的测量值的流程图；
图6是根据本发明一个实施例的红外传感器的测温误差修正方法中获取红外传感器在修正状态下的测量值的流程图；
图7是根据本发明一个实施例的冰箱的示意性结构图；
图8是根据本发明一个实施例的冰箱的控制部件的示意框图；
图9是根据本发明一个实施例的冰箱的制冷系统的示意图；
图10是根据本发明一个实施例的冰箱的制冷系统的结构示意图；以及
图11是根据本发明一个实施例的冰箱进行间室分区制冷的流程图。
具体实施方式
本发明实施例提供了一种红外传感器的测温误差修正方法。图1是根据本发明一个实施例的红外传感器的测温误差修正方法的示意图，该红外传感器的测温误差修正方法包括：
步骤S102，确认红外传感器运行于工作状态；
步骤S104，获取红外传感器对预设区域的温度进行感测得到的工作状态下的测量值；
步骤S106，获取红外传感器对应的修正常数；
步骤S108，使用修正常数对测量值进行修正，以得到温度修正值。
本实施例的方法中使用的红外传感器不发射红外线，而是被动接收所感测范围内物品发射的红外线及背景红外线，直接感知预设区域内部物品的温度，转换为相应的电信号。相比于现有技术中的温度传感器，红外传感器可以通过直接接收物品发射的红外线，以快速地测量温度，而不需要物品将其温度传导至温度传感器周围后，才能感测温度的变化，响应速度快，准确程度高。红外传感器可以通过设置红外导向部件限制出矩形视野，通过限制检测方位提高检测精度，以对预设区域进行精确探测。
另外，红外传感器响应速度快，但是测温精度方面一般存在绝对误差，该绝对误差在±3℃范围内。对于每个红外传感器，绝对误差基本上为一个定值。根据红外传感器的以上特性，本实施例的红外传感器的测温误差修正方法通过对修正状态下红外传感器的测量值与标准温度值进行比对得出修正常数，该修正常数反映了红外传感器的绝对误差。
步骤S102中的工作状态可以为红外传感器进行温度测量的工作状态，以区别于红外传感器的修正状态。
图2是根据本发明一个实施例的红外传感器的测温误差修正方法中比对得出修正常数的流程图。比对得出所述修正常数的过程包括以下步骤：
步骤S202，获取进入修正状态的触发信号，并关闭影响预设区域的温度的部件以进入修正状态；
步骤S204，分别获取红外传感器在修正状态下的测量值以及布置于预设区域内的标准温度测量装置测量得出标准温度值；
步骤S206，计算修正状态下的测量值与标准温度值的差值，该差值即修正常数。
步骤S202中触发信号可以根据外部输入的进行红外传感器修正的指令，也可以是初次上 电的上电信号。影响预设区域的温度的部件可以包括各类风机、冷源等。在红外传感器布置于冰箱间室内部，对冰箱间室内部储存物品的温度进行感测时，冰箱的红外传感器进入修正状态，可以关闭冰箱门体，关闭制冷系统的所有部件。在修正状态下，预设区域保持稳定的状态，可以使修正常数与红外传感器的绝对误差更加接近。
为了避免由于红外传感器和标准温度测量装置的测量波动导致修正常数出现偏差，在本实施例中，步骤S204获取红外传感器在修正状态下的测量值以及获取标准温度值，可以采用多采样值平均计算的方式进行。
获取红外传感器在修正状态下的测量值的步骤可以包括：每间隔第一预定时间采集一次红外传感器在修正状态下的感测结果，得到修正采样值；获取连续第一预定数量的修正采样值，并从获取到的修正采样值中筛除最大修正采样值和最小修正采样值；以及计算筛除最大修正采样值和最小修正采样值后的修正采样值的平均值，并将平均值作为红外传感器在修正状态下的测量值。
进一步为了避免红外传感器出现异常数据或者出现故障，在得到修正采样值之后还可以包括：判断修正采样值是否属于预设的正常数值区间；若是，则将修正采样值按照采样时间依次存储于预设的修正采样值队列中，修正采样值队列的长度为所述第一预定数量；若否，将修正采样值设置为无效数据并筛除，在连续第一预定数量的温度采样值均为无效数据的情况下，并输出修正测量异常提示信号。
获取标准温度值的步骤可以包括：每间隔第二预定时间采集一次标准温度测量装置的感测结果，得到标准采样值；获取连续第二预定数量的标准采样值，并从获取到的标准采样值中筛除最大标准采样值和最小标准采样值；以及计算筛除最大标准采样值和最小标准采样值后的标准采样值的平均值，并将平均值作为标准温度值。
进一步为了避免标准温度测量装置出现异常数据或者出现故障，在得到标准采样值之后还可以包括：判断准采样值是否属于预设的正常数值区间；若是，则将标准采样值按照采样时间依次存储于预设的标准采样值队列中，标准采样值队列的长度为所述第二预定数量；若否，将标准采样值设置为无效数据并筛除，在连续第二预定数量的标准采样值均为无效数据的情况下，并输出标准测量异常提示信号。
本实施的红外传感器的测温误差修正方法，可以优先适用于对冰箱中用于测量储藏物品温度的红外传感器进行误差修正，以保证冰箱间室测量温度的准确性，以便根据热源的情况进行控制，为冰箱内的食物提供最佳的储存环境，减少食物的营养流失。
其中确定修正常数的流程可以在生产线上的冰箱在装配完后会进行。在确定修正常数时， 由于冰箱从未制冷过，冰箱储物间室内的温度基本是均匀一致的，可以在进行制冷性能测试之前对其进行校准。另外以上标准温度测量装置可以是放入冰箱储物间室的温度测量装置，在一种优选实施例中，可以使用测量冰箱间室内部环境温度的热敏电阻作为标准温度测量装置。一般冰箱储物间室内都有设置有NTC(Negative Temperature Coefficient，负温度系数的热敏电阻)，其绝对误差一般在±0.5℃范围内，可以满足修正常数修正的需要。
图3是根据本发明一个实施例的红外传感器的测温误差修正方法应用于冰箱的初始化示意图，冰箱在上电运行后可以依次运行以下步骤：
步骤S302，冰箱上电运行，参数初始化。初始化的内容包括：分别修正采样值队列和清空标准采样值队列。修正采样值队列的队列长度为第一预定数量S1，标准采样值队列的队列长度为第二预定数量S2。对采样值队列序列标识初始化，s1＝0；对标准值队列序列标识初始化，s2＝0。修正值报警提示标识初始化，Err1＝0，标准值报警提示标识初始化，Err2＝0。
步骤S304，判断是否触发红外传感器修正常数的确定流程，若是，执行步骤S306的计算红外修正常数流程；若否，执行步骤S308的冰箱制冷控制。步骤S304通过在获取到上电信号后，探测修正常数的存储单元的存储值来确定，如果该存储值为默认值，则说明修正常数尚未确定。如果该存储值以被修改，则说明修正常数已确定，可以直接进入冰箱指令控制流程。
图4是根据本发明一个实施例的红外传感器的测温误差修正方法应用于冰箱情况下确定修正常数的流程图。该流程包括：
步骤S402，启动冰箱红外传感器的修正常数的确定流程；
步骤S404，关闭冷源系统、关闭风机、关闭间室内灯光，以进入修正状态；使冰箱间室内部环境稳定；
步骤S406，获取红外传感器在修正状态下的测量值IR(out)；
步骤S408，获取标准温度值TC(out)。
步骤S410，计算修正常数IR(amend)＝TC(out)-IR(out)；
步骤S412，保存修正常数IR(amend)，以供在冰箱进行温度测量时使用。
以上步骤S406以及步骤S408可以才采用多采样值平均的方式来获取IR(out)以及TC(out)。
图5是根据本发明一个实施例的红外传感器的测温误差修正方法中获取红外传感器在修正状态下的测量值的流程图。该流程包括：
步骤S502，红外传感器在修正状态下的测量值IR(out)采集启动；
步骤S504，采集红外传感器的感测结果，得到修正采样值T1；
步骤S506，判断T1是否属于正常数值区间，例如判断否满足-40<T1<60，若是，认定为正常数据，执行步骤S508，若否认定为异常数据，执行步骤S520；
步骤S508，将Err1进行清零，Err1＝0；
步骤S510，判断修正采样值的数量是否达到要求，即判断是否满足s1>S1，在S1取值为10时，判断s1是否大于10；若是，采集完成，执行步骤S512，若否进行下一次采集，执行步骤S516；
步骤S512，对修正值队列进行整理，即IRout(0)＝IRout(1)，IRout(1)＝IRout(2)，……IRout(S1-1)＝IRout(S1)，IRout(S1)＝T1，形成循环存储队列，也就是覆盖最初的采样值；
步骤S514，对IRout(0)、IRout(1)……IRout(S1)进行排序，筛除最小采样值IRoutmin和最大采样值IRoutmax，剩余S-2个数值取平均值IRout，计算公式为：
IRout＝(IRout(0)+IRout(1)+……+IRout(S1)–Iroutmax-IRoutmin)/(S1-2)；
步骤S518，进入下一次感测结果采集，IRout(s1)＝T1，s1＝s1+1，返回执行S504；
步骤S520，采样值报警提示标识初累加，Err1＝Err1+1；
步骤S522，判断是否出现连续预定数量的修正采集值均为无效数据的情况，即判断是否出现Err1>S1的情况，若是执行步骤S524，若否，返回执行步骤S504；
步骤S524，输出异常提示，停止测量。
通过以上流程得出的IRout消除了红外传感器的测量波动以及异常数据，更加准确。以上修正采样值的采集过程中，可将采集频率设置为每0.1秒采集一次，修正采样值存储队列的长度设置为10个，具体的数值可以根据测试结果进行调整。
图6是根据本发明一个实施例的红外传感器的测温误差修正方法中获取红外传感器在修正状态下的测量值的流程图。该流程包括：
步骤S602，红外传感器在修正状态下的测量值IR(out)采集启动；
步骤S604，采集冰箱间室内部环境温度传感器的测量结果，得到标准采样值T2；
步骤S606，判断T2是否属于正常数值区间，例如判断是否满足-40<T2<60，若是，认定为正常数据，执行步骤S608，若否认定为异常数据，执行步骤S620；
步骤S608，将Err2进行清零，Err2＝0；
步骤S610，判断标准采样值的数量是否达到要求，即判断是否满足s2>S1，在S2取值为20时，判断s1是否大于20；若是，采集完成，执行步骤S612，若否进行下一次采集，执行步骤S616；
步骤S612，对标准值队列进行整理，即TCout(0)＝TCout(1)，TCout(1)＝TCout(2)，…… TCout(S2-1)＝TCout(S2)，TCout(S)＝T2，形成循环存储队列，也就是覆盖最初的采样值；
步骤S614，对TCout(0)、TCout(1)……TCout(S2)进行排序，筛除最小采样值TCoutmin和最大采样值TCoutmax，剩余S2-2个数值取平均值TCout，计算公式为:
TCout＝(TCout(0)+TCout(1)+…+TCout(S2)–Tcoutmax-TCoutmin)/(S2-2)；步骤S618，进入下一次感测结果采集，TCout(s2)＝T1，s2＝s2+1，返回执行S604；
步骤S620，标准采样值报警提示标识初累加，Err2＝Err2+1；
步骤S622，判断是否出现连续预定数量的标准采样值均为无效数据的情况，即判断是否出现Err2>S2的情况，若是执行步骤S624，若否，返回执行步骤S604；
步骤S624，输出异常提示，停止测量。
通过以上流程得出的TCout消除了间室环境温度传感器(例如NTC)的测量波动以及异常数据，更加准确。
以上标准采样值的采集过程中，可将采集频率设置为每1毫秒采集一次，修正采样值存储队列的长度设置为20个，具体的数值可以根据测试结果进行调整。
冰箱在修正状态下，需要保证间室内部的环境保持稳定状态，尽量避免温度波动，因此一般选择在冰箱组装完毕后，初次上电测试时完成。得出的修正常数IR(amend)可在冰箱进行后续测试或者温度测量时使用。通过对异常数据的筛除和报警提示，可对红外传感器以及冰箱间室环境温度传感器进行故障检测。
本实施例还提供了一种冰箱，使用上述实施例的红外传感器的测温误差修正方法得出温度修正值作为温度控制的依据。图7是根据本发明一个实施例的冰箱的示意性结构图，图8是根据本发明一个实施例的冰箱的控制部件的示意框图。该冰箱一般性地可以包括：箱体110、红外传感器130以及温度计算装置160、制冷控制组件170、标准温度测量装置180。
箱体110包括顶壁、底壁、后壁以及左右两个侧壁围成，箱体110前方设置门体(图中未示出)，门体可以采用枢轴结构连接于侧壁上。箱体110内部限定有储物间室(例如冷藏室)。储物间室可被分隔为多个储物空间140。
红外传感器130设置于储物间室内部，配置成对储物间室内预设储物空间中存储物品的温度进行感测。红外传感器130的数量依据储物空间140的数量进行设定。一般而言每个储物空间140可以设置一个红外传感器130。在储物空间140具有情况下较大的宽度的情况下，一个红外传感器130可能无法全面地感测到储物空间140的整体情况，可以在一个储物空间140中设置多个红外传感器130，一种优选的方式为布置两个红外传感器分别布置于箱体两个侧壁的内侧，共同对储物空间140进行温度测量。
红外传感器130的配置的另一种方式为：利用传动装置(螺杆传动、同步带传动等)带动红外传感器130在多个储物空间中运动，以分别对多个储物空间140的温度进行测量。
为了提高红外传感器130对储物空间140内部物品的温度感测精度，满足对冰箱间室进行制冷的要求，发明人对红外传感器130的安装位置进行了大量的测试得出，红外传感器130的优选安装位置及其优选的配置方式。红外传感器130在其所在储物空间140的高度高于储物空间140整体高度的二分之一处(更优的范围为高于或位于储物空间140整体高度的三分之二)，每个红外传感器130的红外接收中心线相对于竖直向上的角度范围设置为70度至150度(更优的范围为76度至140度)；以及每个红外传感器130的红外接收中心线的水平投影与其所在侧壁的夹角范围设置为30度至60度(更优的范围为30度至45度)。
红外传感器130不发射红外线，而是被动接收所感测范围内物品发射的红外线及背景红外线，直接感知储物空间140内物品温度的变化区域及温度，转换为相应的电信号。
本发明的冰箱的储物间室可以被分隔为多个储物空间140。例如搁物架组件120将储物间室分隔为多个储物空间140。其中一种优选结构为：搁物架组件120包括至少一个水平设置的隔板，以将间室沿竖直方向分隔为多个储物空间140。在图1中，搁物架组件120包括第一隔板、第二隔板、第三隔板，其中第一隔板上方形成第一储物空间、第一隔板与第二隔板之间形成第二储物空间、第二隔板与第三隔板之间形成第三储物空间。在本发明的另一些实施例中，搁物架组件120中的隔板数量以及储物空间140的数量，可以根据冰箱的容积以及使用要求预先进行配置。每个储物空间140内分别设置有一个或多个用于测量其内存储物物品的温度的红外传感器130。
温度计算装置160与红外传感器130信号连接，并配置成：确认红外传感器130运行于工作状态；获取红外传感器130对储物空间140的温度进行感测得到的工作状态下的测量值；获取红外传感器130对应的修正常数IR(amend)，修正常数IR(amend)通过对修正状态下红外传感器130的测量值IR(out)与标准温度值TC(out)进行比对得出；使用修正常数对测量值进行修正，以得到温度修正值。温度计算装置160可以对多个储物空间内的红外传感器130分别进行温度计算，以分别得到多个储物空间内存储物品的实际温度。其中以上工作状态是指红外传感器130进行温度测量的状态，以区别于红外传感器130的修正状态。
温度计算装置160也可以采用类似于图5和图6的方式进行工作状态下的测量值的获取，以消除测量波动带来的影响。如果在连续预定数量的工作状态下的测量值均为无效数据的情况下，停止红外传感器对预设区域内的温度进行感测，并输出温度测量异常提示信号。该异常提示信号可以通过冰箱的显示屏进行显示，或者通过网络向与冰箱预先绑定的用户使用的 移动终端进行报告。
在储物间室被分隔为多个储物空间140的情况下，每个储物空间140内可以分别设置有一个或多个用于测量其内存储物物品的温度的红外传感器130。并且温度计算装置160与多个储物空间140内分别布置的红外传感器130分别连接。温度计算装置160可以分别计算得出多个储物空间的温度修正值，以作为对多个储物空间140分别进行温度控制的依据。在一个储物空间140配置多个红外传感器130的情况下，温度计算装置160可以计算同一储物空间140的多个红外传感装置测量的温度值中最大值与最小值的差值，根据差值的大小确定最大值权重系数k和最小值权重系数m，将最大值权重系数k和最小值权重系数m分别作为温度最大值和温度最小值的权重系数，对温度最大值和温度最小值进行加权和计算，并且将加权和计算的结果作为储物空间140的感测温度值。计算公式为感测温度值IRT＝IRTmax*k+IRTmin*m其中，IRTmax为温度最大值，IRTmin为温度最小值。将IRT作为储物空间140的制冷控制依据。
本实施例的冰箱还可以包括：分路送风装置，配置成将来自于冷源的制冷气流分配至多个储物空间140。制冷控制组件170可以配置成分别将每个储物空间140的温度修正值与每个储物空间140各自预设的区域制冷开启温度阈值进行比较，将温度修正值大于区域制冷开启温度阈值的储物空间对应的制冷状态标识设置为启动，并且驱动分路送风装置运行至向制冷状态标识为启动的储物空间提供制冷气流的状态。
图9是根据本发明一个实施例的冰箱的制冷系统的示意图，以及图10是根据本发明一个实施例的冰箱的制冷系统的结构示意图。该制冷系统包括：风道组件、压缩机、冷藏风门250、风机230等。该冰箱可利用蒸发器、压缩机、冷凝器、节流元件等部件经由冷媒配管构成制冷循环回路，在压缩机启动后，使蒸发器释放冷量。
蒸发器可设置在蒸发器室中。蒸发器冷却后的空气经风机230向贮藏室传送。例如冰箱的贮藏室的内部可分隔为变温室、冷藏室和冷冻室，其中贮藏室的最上层为冷藏室，冷藏室的下层为变温室、变温室的下层为冷冻室，蒸发器室可设置于冷冻室的后部。风机230设置于蒸发器室的上方的出口处。相应地，蒸发器冷却后的空气的供给风路包括与变温室相连的用于向变温室送风的变温供给风路、与冷冻室相连的用于向冷冻室送风的冷冻供给风路、以及与冷藏室相连的用于向冷藏室送风的冷藏供给风路。
在本实施例中，风道组件为向冷藏室送风的风路系统，该风道组件包括：风道底板210、分路送风装置220、风机230。风道底板210上限定有分别通向多个储物空间140的多条风路214，各条风路214分别通向不同的储物空间140，例如在图1所示的实施例中，可以具有通向第一储物空间的第一供风口211、通向第二储物空间的第二供风口212、以及通向第三储物空间的 第三供风口213。
分路送风装置220设置在冷藏供给风路中，冷藏供给风路形成在冷藏室的背面，分路送风装置220包括连接至冷源(例如蒸发器室)的进风口221以及分别与多条风路214连接的多个分配口222。分配口222分别连接至不同的风路214。该分路送风装置220可以受控地将风机230产生的来自于冷源的冷气经进风口221分配至不同的分配口222，从而经不同的风路214进入冷藏室的不同的储物空间140。
分路送风装置220可以将来自于冷源的制冷气流进行集中分配，而不是为不同的储物空间140单独设置不同的风道，提高了制冷效率。该分路送风装置220可以包括：壳体221、调节件224、盖板225。壳体221上形成有进风口221和分配口222，盖板225与壳体221组装，形成分路送风腔。调节件224布置于该分路送风腔内。调节件224具有至少一个遮挡部226，遮挡部226可动地设置于壳体221内，配置成受控地对多个分配口222进行遮蔽，以调整多个分配口222的各自的出风面积。
风机230的送风会经过调节件224的分配供向不同的储物空间140，分路送风装置220可以实现多达七种的送风状态，例如可以包括：供向第一供风口211的分配口222单独开，供向第二供风口212的分配口222单独开，供向第三供风口213的分配口222单独开，供向第一供风口211和第二供风口212的分配口222同时开，供向第一供风口211和第三供风口213的分配口222同时开，供向第二供风口212和第三供风口213的分配口222同时开、供向第一供风口211、供向第二供风口212和第三供风口213的分配口222同时开。在本实施例的冰箱由一个隔板隔出两个储物空间时，分路送风装置220可以设置有两个分配口，同时具备三种送风状态即可。在进行分路送风时，调节件224会旋转，会根据需求的风量大小来决定旋转的角度，并且遮挡部226之间形成的导引口会对准对应的分配口222。
壳体221在分路送风腔内设置有电机227、两个止挡柱228、定位座凹槽243，止挡柱228的作用是电机227在运转过程中，调节件224的运动更准确，且每次加电时或一段时间后，调节件224均运动至起始止挡柱228处，以其为起点转动至指定的转动位置。定位座凹槽243的作用是保证调节件224在每转动30度的角度位置时定位。调节件224上设置有盘簧片229(此盘簧片229也可以用扭簧来代替)、配重块241及定位销245。盘簧片229的一段固定于盖板225上，另一端随着调节件224的运转而预紧施加反向的力，始终向调节件224施加一定的偏置力，从而可抑制因直流步进电机227传动机构的齿隙导致的晃动问题。枢转部朝与调节件224的主体径向相反的方向延伸有配重部，在配重部的远端设置有配重块241，以消除偏置转矩。定位销245可上下移动(通过压簧)的固定在调节件224上。壳体221上设置有与之配合的定位 座凹槽243。
需要注意的是，本实施例的冰箱以具有三个储物空间140的间室为例进行说明，在实际使用时，可以根据具体的使用要求，将红外传感组件130、风路214、分配口222、供风口的数量进行设置，以满足不同冰箱的要求。例如，根据以上介绍，容易得出具有两个储藏空间140的冷藏室的送风系统。
制冷控制组件170驱动分路送风装置运行至向制冷状态标识为启动的储物空间140提供制冷气流的状态。控制更加精准，保证了根据储物空间140存储物品的情况来进行制冷控制，避免了对整个间室制冷导致的电能浪费。进一步地，本实施例的冰箱还可以快速对温度较高的物品进行降温，减小温度较高物品对已经存储的其他物品的影响，提高冰箱冷藏室的储藏效果，减少食物的营养流失。
图11是根据本发明一个实施例的冰箱进行间室分区制冷的流程图。在间室分区制冷时，可以依次执行以下步骤：
步骤S1102，确定间室进入制冷状态；
步骤S1104，获取多个红外传感器分别感测的储物空间的温度修正值，该温度修正值直接反映了储物空间内存储物品的温度；
步骤S1106，分别将每个储物空间的温度修正值与每个储物空间各自预设的区域制冷开启温度阈值进行比较；
步骤S1108，将温度修正值大于区域制冷开启温度阈值的储物空间对应的制冷状态标识设置为启动；
步骤S1110，驱动分路送风装置运行至向制冷状态标识为启动的储物空间提供制冷气流的状态。
以上步骤S1102中确定冷藏室进入制冷状态的步骤还包括：获取间室内环境平均温度(例如使用NTC测量的温度)；判断间室内环境平均温度是否大于等于预设的整体制冷开启温度阈值；若是，开启冷源与分路送风装置之间设置的冷藏风门，使间室进入制冷状态。
其中，在间室内环境平均温度小于预设的整体制冷开启温度阈值的情况下，判断冷藏风门是否已处于开启状态；若是，判断间室内环境平均温度和/或每个储物空间的温度修正值是否满足预设的冷藏室制冷停止条件；在满足间室制冷停止条件时，关闭冷藏风门。
以上间室制冷停止条件可以包括：每个储物空间的温度修正值均小于每个储物空间各自预设的区域制冷关闭温度阈值，其中每个储物空间的区域制冷关闭温度阈值小于区域制冷开启温度阈值；或者间室内环境平均温度小于预设的整体制冷关闭温度阈值。
另一种可选的间室制冷停止条件包括：在间室内环境平均温度小于预设的整体制冷关闭温度阈值的情况下，每个储物空间的温度修正值均小于每个储物空间各自预设的区域制冷开启温度阈值，其中每个储物空间的区域制冷关闭温度阈值小于区域制冷开启温度阈值，或者整体制冷关闭温度阈值减去间室内环境平均温度的差值大于预设的裕量值。
在步骤S1106之后还可以将每个储物空间的温度修正值与每个储物空间各自预设的区域制冷关闭温度阈值进行比较，其中每个储物空间的区域制冷关闭温度阈值小于区域制冷开启温度阈值；以及将温度修正值小于区域制冷关闭温度阈值的储物空间对应的制冷状态标识设置为关闭。
使用以上步骤S1102至S1110的流程，利用采用本实施例的红外传感器的测温误差修正方法得出的温度修正值进行制冷控制，提高了温度测量准确度，可以及时有效地进行制冷控制，避免高温物体对周围储物空间的影响，提高冰箱冷藏室的储藏效果，减少食物的营养流失，同时避免了对整个间室制冷导致的电能浪费。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种红外传感器的测温误差修正方法，包括：
    确认所述红外传感器运行于工作状态；
    获取所述红外传感器对预设区域的温度进行感测得到的工作状态下的测量值；
    获取所述红外传感器对应的修正常数，所述修正常数通过对修正状态下所述红外传感器的测量值与标准温度值进行比对得出；
    使用所述修正常数对所述测量值进行修正，以得到温度修正值。
  2. 根据权利要求1所述的方法，其中，比对得出所述修正常数的步骤包括：
    获取进入所述修正状态的触发信号，并关闭影响所述预设区域的温度的部件以进入所述修正状态；
    分别获取所述红外传感器在所述修正状态下的测量值以及布置于所述预设区域内的所述标准温度测量装置测量得出所述标准温度值；
    计算所述修正状态下的测量值与所述标准温度值的差值；
    将所述差值作为所述修正常数。
  3. 根据权利要求2所述的方法，其中，获取所述红外传感器在所述修正状态下的测量值的步骤包括：
    每间隔第一预定时间采集一次所述红外传感器在所述修正状态下的感测结果，得到修正采样值；
    获取连续第一预定数量的所述修正采样值，并从获取到的所述修正采样值中筛除最大修正采样值和最小修正采样值；以及
    计算筛除所述最大修正采样值和所述最小修正采样值后的修正采样值的平均值，并将所述平均值作为所述红外传感器在所述修正状态下的测量值。
  4. 根据权利要求3所述的方法，其中，在得到所述修正采样值之后还包括：
    判断所述修正采样值是否属于预设的正常数值区间；
    若是，则将所述修正采样值按照采样时间依次存储于预设的修正采样值队列中，所述修正采样值队列的长度为所述第一预定数量；
    若否，将所述修正采样值设置为无效数据并筛除，在连续所述第一预定数量的温度采样值均为无效数据的情况下，并输出修正测量异常提示信号。
  5. 根据权利要求2所述的方法，其中，获取所述标准温度值的步骤包括：
    每间隔第二预定时间采集一次所述标准温度测量装置的感测结果，得到标准采样值；
    获取连续第二预定数量的所述标准采样值，并从获取到的所述标准采样值中筛除最大标准采样值和最小标准采样值；以及
    计算筛除所述最大标准采样值和所述最小标准采样值后的标准采样值的平均值，并将所述平均值作为所述标准温度值。
  6. 根据权利要求5所述的方法，其中，在得到所述标准采样值之后还包括：
    判断所述标准采样值是否属于预设的正常数值区间；
    若是，则将所述标准采样值按照采样时间依次存储于预设的标准采样值队列中，所述标准采样值队列的长度为所述第二预定数量；
    若否，将所述标准采样值设置为无效数据并筛除，在连续所述第二预定数量的标准采样值均为无效数据的情况下，并输出标准测量异常提示信号。
  7. 一种冰箱，包括：
    箱体，内部限定有储物间室；
    红外传感器，设置所述储物间室内部，配置成对所述储物间室内预设储物空间中存储物品的温度进行感测；以及
    温度计算装置，与所述红外传感器连接，并配置成：确认所述红外传感器运行于工作状态；获取所述红外传感器对所述储物空间的温度进行感测得到的工作状态下的测量值；获取所述红外传感器对应的修正常数，所述修正常数通过对修正状态下所述红外传感器的测量值与标准温度值进行比对得出；使用所述修正常数对所述测量值进行修正，以得到温度修正值。
  8. 根据权利要求7所述的冰箱，还包括：
    标准温度测量装置，设置于所述储物间室内，并配置成测量得出标准温度值；以及
    修正常数计算装置，与所述红外传感器以及所述标准温度测量装置分别连接，并配置成获取进入所述修正状态的触发信号，关闭所述冰箱的冷源设备以进入所述修正状态，分别获取所述红外传感器在所述修正状态下的测量值以及所述标准温度测量装置测量得出所述标准温度值；计算所述修正状态下的测量值与所述标准温度值的差值；将所述差值作为所述修正常数。
  9. 根据权利要求7或8所述的冰箱，其中，
    所述储物间室被分隔为多个所述储物空间，每个所述储物空间内分别设置有一个或多个用于测量其内存储物物品的温度的所述红外传感器；并且
    所述温度计算装置，与多个所述红外传感器分别连接，并配置成：分别计算得出多个所 述储物空间的温度修正值，以作为对多个所述储物空间分别进行温度控制的依据。
  10. 根据权利要求9所述的冰箱，还包括：
    分路送风装置，配置成将来自于冷源的制冷气流分配至多个所述储物空间；以及
    制冷控制组件，配置成分别将每个所述储物空间的温度修正值与每个所述储物空间各自预设的区域制冷开启温度阈值进行比较，将所述温度修正值大于所述区域制冷开启温度阈值的储物空间对应的制冷状态标识设置为启动，并且驱动所述分路送风装置运行至向所述制冷状态标识为启动的储物空间提供所述制冷气流的状态。
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