CN109798641B

CN109798641B - Method and device for correcting temperature detection result of internal machine

Info

Publication number: CN109798641B
Application number: CN201910004747.7A
Authority: CN
Inventors: 王命仁; 梁鑫; 郑春元; 杨国忠; 谭志军
Original assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2021-11-02
Anticipated expiration: 2039-01-03
Also published as: CN109798641A

Abstract

The invention provides a method and a device for correcting an internal machine temperature detection result, wherein the method comprises the following steps: obtaining the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the internal machine; judging whether the temperature detection result of the internal machine is distorted or not according to the pressure of the compressor, the temperature of the compressor and the temperature detection result of the internal machine; and if the internal machine temperature detection result is distorted, correcting the internal machine temperature detection result. From this, through compressor pressure, compressor temperature and interior machine temperature testing result, judge whether distortion is done to interior machine temperature testing result to after confirming interior machine temperature testing result distortion, revise interior machine temperature testing result, ensure the accuracy nature of interior machine temperature testing result, thereby, ensure interior machine performance stability, promote user and use experience.

Description

Method and device for correcting temperature detection result of internal machine

Technical Field

The invention relates to the technical field of air conditioners, in particular to a method and a device for correcting an indoor unit temperature detection result.

Background

The related art multi-split air conditioner generally comprises one or more external units and one or more internal units, and is provided with a temperature sensing bulb to detect corresponding internal unit temperature parameters, such as the temperature of an internal unit heat exchanger.

However, the problem of the related art is that due to the influences of production errors, transportation, installation, air conditioner operation environment and the like, the distortion problem of the temperature detection result of the heat exchanger of the internal machine may occur, so that the normal adjustment of the electronic expansion valve or other throttling components of the internal machine is influenced, the stability of the multi-split air conditioner is reduced, and the user experience is poor.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first objective of the present invention is to provide a method for correcting an internal machine temperature detection result, which can ensure accuracy of the internal machine temperature detection result, thereby ensuring performance stability of the internal machine and improving user experience.

The second purpose of the invention is to provide a device for correcting the temperature detection result of the internal machine.

In order to achieve the above object, an embodiment of the present invention provides a method for correcting an internal unit temperature detection result, including: obtaining the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the internal machine; judging whether the internal machine temperature detection result is distorted according to the compressor pressure, the compressor temperature and the internal machine temperature detection result; and if the internal machine temperature detection result is distorted, correcting the internal machine temperature detection result.

According to the method for correcting the indoor unit temperature detection result provided by the embodiment of the invention, the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the indoor unit are obtained, whether the detection result of the temperature of the indoor unit is distorted or not is judged according to the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the indoor unit, and the detection result of the temperature of the indoor unit is corrected after the detection result of the temperature of the indoor unit is judged to be distorted. From this, through compressor pressure, compressor temperature and interior machine temperature testing result, judge whether distortion is done to interior machine temperature testing result to after confirming interior machine temperature testing result distortion, revise interior machine temperature testing result, ensure the accuracy nature of interior machine temperature testing result, thereby, ensure interior machine performance stability, promote user and use experience.

In addition, the method for correcting the internal machine temperature detection result according to the above embodiment of the present invention may further have the following additional technical features:

according to an embodiment of the present invention, the determining whether the indoor unit temperature detection result is distorted according to the compressor pressure, the compressor temperature, and the indoor unit temperature detection result includes: judging whether the internal machine is in a refrigeration state or not; if the internal machine is in a refrigerating state, judging whether the evaporator temperature detection result is distorted according to the compressor pressure, the compressor temperature and the evaporator temperature detection result; if the indoor unit is not in a refrigerating state, judging whether the indoor unit is in a heating state or not; and if the internal machine is in a heating state, judging whether the detection result of the condenser temperature is distorted according to the pressure of the compressor and the detection result of the condenser temperature.

According to an embodiment of the present invention, the determining whether the evaporator temperature detection result is distorted according to the compressor pressure, the compressor temperature, and the evaporator temperature detection result includes: acquiring a detection result of the inlet temperature of the evaporator, and calculating the average inlet temperature of the evaporator; acquiring the suction pressure of a compressor, and acquiring the saturation temperature corresponding to the suction pressure of the compressor; and judging whether the detection result of the inlet temperature of the evaporator is distorted or not according to the average inlet temperature of the evaporator and the saturation temperature.

According to an embodiment of the present invention, the determining whether the evaporator temperature detection result is distorted according to the compressor pressure, the compressor temperature, and the evaporator temperature detection result further includes: acquiring a detection result of the outlet temperature of the evaporator, and calculating the average outlet temperature of the evaporator; acquiring the suction temperature of a compressor; and judging whether the detection result of the outlet temperature of the evaporator is distorted or not according to the average outlet temperature of the evaporator and the suction temperature of the compressor.

According to an embodiment of the present invention, the determining whether the condenser temperature detection result is distorted according to the compressor pressure and the condenser temperature detection result includes: acquiring a detection result of the middle temperature of the condenser, and calculating the average middle temperature of the condenser; acquiring the exhaust pressure of a compressor, and acquiring the saturation temperature corresponding to the exhaust pressure of the compressor; and judging whether the detection result of the temperature in the middle of the condenser is distorted or not according to the average temperature in the middle of the condenser and the saturation temperature.

According to an embodiment of the present invention, the determining whether the condenser temperature detection result is distorted according to the compressor pressure and the condenser temperature detection result further includes: acquiring a detection result of the outlet temperature of the condenser, and calculating the average outlet temperature of the condenser; acquiring the exhaust pressure of a compressor, and acquiring the saturation temperature corresponding to the exhaust pressure of the compressor; and judging whether the detection result of the outlet temperature of the condenser is distorted or not according to the average outlet temperature of the condenser and the saturation temperature.

According to an embodiment of the present invention, the determining whether the evaporator inlet temperature detection result is distorted according to the average evaporator inlet temperature and the saturation temperature includes: calculating an absolute value of a difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature; if the absolute value of the difference value between the evaporator inlet temperature detection result and the average evaporator inlet temperature is smaller than a first preset value, determining that the evaporator inlet temperature detection result is normal; if the absolute value of the difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature is greater than or equal to a first preset value, calculating the absolute value of the difference between the evaporator inlet temperature detection result and the saturation temperature; if the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is smaller than a second preset value, determining that the evaporator inlet temperature detection result is normal; and if the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is greater than or equal to a second preset value, determining that the evaporator inlet temperature detection result is distorted.

According to an embodiment of the present invention, the determining whether the evaporator outlet temperature detection result is distorted according to the average evaporator outlet temperature and the compressor suction temperature includes: calculating an absolute value of a difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature; if the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is smaller than a third preset value, determining that the evaporator outlet temperature detection result is normal; if the absolute value of the difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature is greater than or equal to a third preset value, calculating the absolute value of the difference between the evaporator outlet temperature detection result and the compressor suction temperature; if the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is smaller than a fourth preset value, determining that the evaporator outlet temperature is normal; and if the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is greater than or equal to a fourth preset value, determining that the evaporator outlet temperature detection result is distorted.

According to an embodiment of the present invention, the determining whether the detection result of the condenser middle temperature is distorted according to the average condenser middle temperature and the saturation temperature includes: calculating the absolute value of the difference between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser; if the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the average temperature in the middle of the condenser is smaller than a fifth preset value, determining that the detection result of the temperature in the middle of the condenser is normal; if the absolute value of the difference between the condenser middle temperature detection result and the average condenser middle temperature is greater than or equal to a fifth preset value, calculating the absolute value of the difference between the condenser middle temperature detection result and the saturation temperature; if the absolute value of the difference value between the condenser middle temperature detection result and the saturation temperature is smaller than a sixth preset value, determining that the condenser middle temperature detection result is normal; and if the absolute value of the difference value between the condenser middle temperature and the saturation temperature is larger than or equal to a sixth preset value, determining that the detection result of the condenser middle temperature is distorted.

According to an embodiment of the present invention, the determining whether the detection result of the condenser outlet temperature is distorted according to the average condenser outlet temperature and the saturation temperature includes: calculating an absolute value of a difference between the condenser outlet temperature detection result and the average condenser outlet temperature; if the absolute value of the difference value between the condenser outlet temperature detection result and the average condenser outlet temperature is smaller than a seventh preset value, determining that the condenser outlet temperature detection result is normal; if the absolute value of the difference between the condenser outlet temperature detection result and the average condenser outlet temperature is greater than or equal to a seventh preset value, calculating the absolute value of the difference between the condenser outlet temperature detection result and the saturation temperature; if the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is smaller than an eighth preset value, determining that the condenser outlet temperature detection result is normal; and if the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is greater than or equal to an eighth preset value, determining that the condenser outlet temperature detection result is distorted.

According to an embodiment of the present invention, after determining that the detection result of the evaporator inlet temperature is distorted, the method further includes: and correcting the detection result of the inlet temperature of the evaporator according to the corrected value of the average inlet temperature or the saturated temperature of the evaporator.

According to an embodiment of the present invention, after determining that the detection result of the evaporator outlet temperature is distorted, the method further includes: and correcting the detection result of the outlet temperature of the evaporator according to the corrected value of the outlet temperature of the average evaporator or the suction temperature of the compressor.

According to an embodiment of the present invention, after determining that the detection result of the condenser middle temperature is distorted, the method further includes: and correcting the detection result of the middle temperature of the condenser according to the corrected value of the average middle temperature or the saturated temperature of the condenser.

According to an embodiment of the present invention, after determining that the detection result of the condenser outlet temperature is distorted, the method further includes: and correcting the detection result of the outlet temperature of the condenser according to the corrected value of the average outlet temperature or the saturated temperature of the condenser.

In order to achieve the above object, an apparatus for correcting a detection result of an internal unit temperature according to an embodiment of a second aspect of the present invention includes: the acquisition module is used for acquiring the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the internal machine; and the control module is used for judging whether the internal machine temperature detection result is distorted according to the compressor pressure, the compressor temperature and the internal machine temperature detection result, and correcting the internal machine temperature detection result when the internal machine temperature detection result is distorted.

According to the device for correcting the detection result of the temperature of the internal machine, which is provided by the embodiment of the invention, the detection results of the pressure, the temperature and the temperature of the compressor are obtained through the obtaining module, whether the detection result of the temperature of the internal machine is distorted or not is judged through the control module according to the detection results of the pressure, the temperature and the temperature of the internal machine, and when the detection result of the temperature of the internal machine is distorted, the detection result of the temperature of the internal machine is corrected. From this, through compressor pressure, compressor temperature and interior machine temperature testing result, judge whether distortion is done to interior machine temperature testing result to after confirming interior machine temperature testing result distortion, revise interior machine temperature testing result, ensure the accuracy nature of interior machine temperature testing result, thereby, ensure interior machine performance stability, promote user and use experience.

In addition, the device for correcting the detection result of the internal machine temperature according to the above embodiment of the present invention may further have the following additional technical features:

according to an embodiment of the present invention, the indoor unit temperature detection result includes an evaporator temperature detection result and a condenser temperature detection result, and the control module is further configured to: judging whether the inner machine is in a refrigerating state, judging whether the evaporator temperature detection result is distorted according to the compressor pressure, the compressor temperature and the evaporator temperature detection result when the inner machine is in the refrigerating state, judging whether the inner machine is in a heating state when the inner machine is not in the refrigerating state, and judging whether the condenser temperature detection result is distorted according to the compressor pressure and the condenser temperature detection result when the inner machine is in the heating state.

According to an embodiment of the present invention, the obtaining module is further configured to: acquiring a detection result of the temperature of an inlet of the evaporator and the suction pressure of the compressor; the control module is further configured to: and calculating the average evaporator inlet temperature according to the detection result of the evaporator inlet temperature, acquiring the saturation temperature corresponding to the suction pressure of the compressor, and judging whether the detection result of the evaporator inlet temperature is distorted according to the average evaporator inlet temperature and the saturation temperature.

According to an embodiment of the present invention, the obtaining module is further configured to: acquiring an evaporator outlet temperature detection result and a compressor suction temperature; the control module is further configured to: and calculating the average evaporator outlet temperature according to the detection result of the evaporator outlet temperature, and judging whether the detection result of the evaporator outlet temperature is distorted or not according to the average evaporator outlet temperature and the suction temperature of the compressor.

According to an embodiment of the present invention, the obtaining module is further configured to: acquiring a detection result of the temperature of the middle part of the condenser and the exhaust pressure of the compressor; the control module is further configured to: and calculating the average condenser middle temperature and acquiring the saturation temperature corresponding to the compressor exhaust pressure according to the condenser middle temperature detection result, and judging whether the condenser middle temperature detection result is distorted according to the average condenser middle temperature and the saturation temperature.

According to an embodiment of the present invention, the obtaining module is further configured to: acquiring a detection result of the outlet temperature of the condenser and the exhaust pressure of the compressor; the control module is further configured to: and calculating the average condenser outlet temperature and acquiring the saturation temperature corresponding to the compressor exhaust pressure according to the detection result of the condenser outlet temperature, and judging whether the detection result of the condenser outlet temperature is distorted or not according to the average condenser outlet temperature and the saturation temperature.

According to an embodiment of the invention, the control module is further configured to: calculating an absolute value of a difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature; when the absolute value of the difference value between the evaporator inlet temperature detection result and the average evaporator inlet temperature is smaller than a first preset value, determining that the evaporator inlet temperature detection result is normal; when the absolute value of the difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature is greater than or equal to a first preset value, calculating the absolute value of the difference between the evaporator inlet temperature detection result and the saturation temperature; when the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is smaller than a second preset value, determining that the evaporator inlet temperature detection result is normal; and when the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is greater than or equal to a second preset value, determining that the evaporator inlet temperature detection result is distorted.

According to an embodiment of the invention, the control module is further configured to: calculating an absolute value of a difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature; when the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is smaller than a third preset value, determining that the evaporator outlet temperature detection result is normal; when the absolute value of the difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature is greater than or equal to a third preset value, calculating the absolute value of the difference between the evaporator outlet temperature detection result and the compressor suction temperature; when the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is smaller than a fourth preset value, determining that the evaporator outlet temperature is normal; and when the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is greater than or equal to a fourth preset value, determining that the evaporator outlet temperature detection result is distorted.

According to an embodiment of the invention, the control module is further configured to: calculating the absolute value of the difference between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser; when the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the average temperature in the middle of the condenser is smaller than a fifth preset value, determining that the detection result of the temperature in the middle of the condenser is normal; when the absolute value of the difference between the condenser middle temperature detection result and the average condenser middle temperature is greater than or equal to a fifth preset value, calculating the absolute value of the difference between the condenser middle temperature detection result and the saturation temperature; when the absolute value of the difference value between the condenser middle temperature detection result and the saturation temperature is smaller than a sixth preset value, determining that the condenser middle temperature detection result is normal; and when the absolute value of the difference value between the condenser middle temperature and the saturation temperature is larger than or equal to a sixth preset value, determining that the detection result of the condenser middle temperature is distorted.

According to an embodiment of the invention, the control module is further configured to: calculating the absolute value of the difference between the detection result of the condenser outlet temperature and the average condenser outlet temperature, and determining that the detection result of the condenser outlet temperature is normal when the absolute value of the difference between the detection result of the condenser outlet temperature and the average condenser outlet temperature is less than a seventh preset value; when the absolute value of the difference between the condenser outlet temperature detection result and the average condenser outlet temperature is greater than or equal to a seventh preset value, calculating the absolute value of the difference between the condenser outlet temperature detection result and the saturation temperature; when the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is smaller than an eighth preset value, determining that the condenser outlet temperature detection result is normal; and when the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is greater than or equal to an eighth preset value, determining that the condenser outlet temperature detection result is distorted.

According to an embodiment of the invention, the control module is further configured to: and correcting the detection result of the inlet temperature of the evaporator according to the corrected value of the average inlet temperature or the saturated temperature of the evaporator.

According to an embodiment of the invention, the control module is further configured to: and correcting the detection result of the outlet temperature of the evaporator according to the corrected value of the outlet temperature of the average evaporator or the suction temperature of the compressor.

According to an embodiment of the invention, the control module is further configured to: and correcting the detection result of the middle temperature of the condenser according to the corrected value of the average middle temperature or the saturated temperature of the condenser.

According to an embodiment of the invention, the control module is further configured to: and correcting the detection result of the outlet temperature of the condenser according to the corrected value of the average outlet temperature or the saturated temperature of the condenser.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic flow chart illustrating a method for correcting an internal machine temperature detection result according to an embodiment of the present invention;

fig. 2 is a schematic flow chart illustrating a method for correcting the detection result of the internal unit temperature according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of a method for determining distortion of an internal unit temperature detection result according to a first embodiment of the present invention;

fig. 4 is a flowchart illustrating a method for correcting the detection result of the temperature of the internal unit according to the first embodiment of the present invention;

fig. 5 is a flowchart illustrating a method for determining distortion of an internal unit temperature detection result according to a second embodiment of the present invention;

fig. 6 is a flowchart illustrating a method for correcting the detection result of the internal unit temperature according to a second embodiment of the present invention;

fig. 7 is a flowchart illustrating a method for determining distortion of an internal unit temperature detection result according to a third embodiment of the present invention;

fig. 8 is a flowchart illustrating a method for correcting the detection result of the temperature of the internal unit according to a third embodiment of the present invention;

fig. 9 is a schematic flowchart of a method for determining distortion of an internal unit temperature detection result according to a fourth embodiment of the present invention;

fig. 10 is a flowchart illustrating a method for correcting an internal unit temperature detection result according to a fourth embodiment of the present invention;

fig. 11 is a block diagram illustrating a device for correcting the detection result of the internal unit temperature according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The method and apparatus for correcting the detection result of the internal machine temperature according to the embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 is a schematic flow chart of a method for correcting an internal machine temperature detection result according to an embodiment of the present invention.

As shown in fig. 1, the method for correcting the detection result of the internal unit temperature includes:

s101, obtaining detection results of compressor pressure, compressor temperature and internal machine temperature.

Specifically, the compressor pressure P may include a compressor discharge pressure Pc and a compressor suction pressure Pe, and the compressor temperature T may include a compressor suction temperature Ts.

And S102, judging whether the indoor unit temperature detection result is distorted according to the compressor pressure, the compressor temperature and the indoor unit temperature detection result.

And S103, if the internal machine temperature detection result is distorted, correcting the internal machine temperature detection result.

From this, through compressor pressure, compressor temperature and interior machine temperature testing result, judge whether distortion is done to interior machine temperature testing result to after confirming interior machine temperature testing result distortion, revise interior machine temperature testing result, ensure the accuracy nature of interior machine temperature testing result, thereby, ensure interior machine performance stability, promote user and use experience.

Further, according to an embodiment of the present invention, as shown in fig. 2, the determining whether the indoor unit temperature detection result is distorted according to the compressor pressure, the compressor temperature and the indoor unit temperature detection result may include:

and S201, judging whether the internal unit is in a refrigerating state or not.

S202, if the internal machine is in a refrigerating state, judging whether the detection result of the evaporator temperature is distorted according to the detection results of the compressor pressure, the compressor temperature and the evaporator temperature.

That is, when the internal unit is in a cooling state, the evaporator temperature detection result is subjected to distortion determination based on the compressor pressure P, the compressor temperature T, and the evaporator temperature detection result.

And S203, if the internal unit is not in the cooling state, judging whether the internal unit is in the heating state.

And S204, if the internal machine is in a heating state, judging whether the detection result of the condenser temperature is distorted according to the detection result of the compressor pressure and the condenser temperature.

That is, when the internal machine is in a heating state, it is determined whether or not the condenser temperature detection result is distorted, based on the compressor pressure P and the condenser temperature detection result.

Further, according to the first embodiment of the present invention, as shown in fig. 3, the determining whether the evaporator temperature detection result is distorted according to the compressor pressure, the compressor temperature, and the evaporator temperature detection result includes:

s301, obtaining the detection result of the inlet temperature of the evaporator, and calculating the average inlet temperature of the evaporator.

Alternatively, a temperature sensor may be provided at the evaporator inlet to obtain the evaporator inlet temperature detection result Ti, and the average evaporator inlet temperature Tia of all the internal machines in the cooling operation state may be calculated according to the obtained evaporator inlet temperature detection result Ti.

S302, acquiring the suction pressure of the compressor and acquiring the saturation temperature corresponding to the suction pressure of the compressor.

Alternatively, a pressure sensor may be disposed at the compressor suction port to obtain the compressor suction pressure Pe, and the corresponding saturation temperature Te may be obtained according to the compressor suction pressure Pe.

And S303, judging whether the detection result of the inlet temperature of the evaporator is distorted according to the average inlet temperature and the saturation temperature of the evaporator.

Specifically, according to the first embodiment of the present invention, as shown in fig. 4, determining whether the evaporator inlet temperature detection result is distorted according to the average evaporator inlet temperature and the saturation temperature includes:

s304, calculating the absolute value of the difference value between the detection result of the inlet temperature of the evaporator and the average inlet temperature of the evaporator.

S305, if the absolute value of the difference value between the detection result of the inlet temperature of the evaporator and the average inlet temperature of the evaporator is smaller than a first preset value, determining that the detection result of the inlet temperature of the evaporator is normal.

That is, when an absolute value | Δ Ti | of a difference between the evaporator inlet temperature detection result Ti and the average evaporator inlet temperature Tia is less than a first preset value Tis, i.e., | Δ Ti | < Tis, it is determined that the evaporator inlet temperature detection result Ti is normal, wherein | Δ Ti | Ti-Tia |.

S306, if the absolute value of the difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature is larger than or equal to a first preset value, calculating the absolute value of the difference between the evaporator inlet temperature detection result and the saturation temperature.

That is, when the absolute value |. DELTA.Ti |, which is the difference between the evaporator inlet temperature detection result Ti and the average evaporator inlet temperature Tia, is greater than or equal to the first preset value Tis, i.e. |. DELTA.Ti | > is greater than or equal to Tis, the absolute value |. DELTA.Te |, which is the absolute value |. DELTA.Te | -Ti, which is the difference between the evaporator inlet temperature detection result Ti and the saturation temperature Te, is calculated, wherein |. DELTA.Te | -Te-Ti |, and the saturation temperature Te is obtained by the compressor suction pressure Pe in the above embodiment.

S307, if the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is smaller than a second preset value, determining that the evaporator inlet temperature detection result is normal.

That is, when the absolute value | Δ Te |, of the difference between the evaporator inlet temperature detection result Ti and the saturation temperature Te is less than the second preset value Tes, i.e., | Δ Te | < Tes, it is determined that the evaporator inlet temperature detection result Ti is normal.

S308, if the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is larger than or equal to a second preset value, determining that the evaporator inlet temperature detection result is distorted.

That is, when an absolute value | Δ Te |, of a difference between the evaporator inlet temperature detection result Ti and the saturation temperature Te is greater than or equal to the second preset value Tes, i.e., | Δ Te | > Tes, it is determined that the evaporator inlet temperature detection result Ti is distorted.

Further, according to an embodiment of the present invention, as shown in fig. 4, after determining that the detection result of the evaporator inlet temperature is distorted, the method further includes:

s309, the evaporator inlet temperature detection result is corrected based on the correction value of the average evaporator inlet temperature or the saturation temperature.

That is, the evaporator inlet temperature detection result Ti may be corrected by replacing the average evaporator inlet temperature Tia with the evaporator inlet temperature detection result Ti, that is, Ti ═ Tia, or replacing the correction value of the saturation temperature Te + K, where K is a constant, with the evaporator inlet temperature detection result Ti, that is, Ti ═ Te + K.

Specifically, when the internal combustion engine is in a refrigerating state, obtaining an evaporator inlet temperature detection result Ti and calculating an average evaporator inlet temperature Tia, and calculating delta Ti to be Ti-Tia;

when |. DELTA.Ti | < Tis, determining that the detection result Ti of the inlet temperature of the evaporator is normal; when the delta Ti is not less than Tis, further acquiring the compressor suction pressure Pe and the saturation temperature Te corresponding to the compressor suction pressure Pe, and calculating the delta Te to be Te-Ti;

when |. Te | < Tes, determining that the detection result Ti of the inlet temperature of the evaporator is normal;

and when |. DELTA.Te | > is not less than Tes, determining that the detection result Ti of the inlet temperature of the evaporator is distorted, and replacing the detection result Ti of the inlet temperature of the evaporator, namely Ti ═ Tia, by the average inlet temperature Tia of the evaporator or replacing a correction value Te + K of the saturation temperature, wherein K is a constant, and replacing the detection result Ti of the inlet temperature of the evaporator, namely Ti ═ Te + K.

In other words, when the internal machine is in a cooling state, whether the evaporator inlet temperature detection result Ti is distorted is judged according to the compressor suction pressure Pe, the evaporator inlet temperature detection result Ti and the average evaporator inlet temperature Tia, and the distorted evaporator inlet temperature detection result Ti is replaced by the average evaporator inlet temperature Tia or a correction value Te + K of the saturation temperature Te corresponding to the compressor suction pressure Pe.

Further, according to the second embodiment of the present invention, as shown in fig. 5, the determining whether the evaporator temperature detection result is distorted according to the compressor pressure, the compressor temperature and the evaporator temperature detection result further includes:

s401, obtaining the detection result of the outlet temperature of the evaporator, and calculating the average outlet temperature of the evaporator.

Alternatively, it is possible To obtain the evaporator outlet temperature detection result To by providing a temperature sensor at the evaporator outlet, and calculate the average evaporator outlet temperature Toa of all the internal machines in the cooling operation state based on the obtained evaporator outlet temperature detection result To.

S402, acquiring the suction temperature of the compressor.

Alternatively, the compressor suction temperature Ts may be obtained by providing a temperature sensor at the compressor suction.

And S403, judging whether the detection result of the outlet temperature of the evaporator is distorted or not according to the average outlet temperature of the evaporator and the suction temperature of the compressor.

Specifically, according to the second embodiment of the present invention, as shown in fig. 6, the determining whether the detection result of the evaporator outlet temperature is distorted according to the average evaporator outlet temperature and the compressor suction temperature includes:

s404, calculating the absolute value of the difference value between the detection result of the outlet temperature of the evaporator and the average outlet temperature of the evaporator.

S405, if the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is smaller than a third preset value, determining that the evaporator outlet temperature detection result is normal.

That is, when absolute value | Δ To | of a difference between the evaporator outlet temperature detection result To and the average evaporator outlet temperature Toa is less than the third preset value Tos, i.e., | Δ To | is less than Tos, it is determined that the evaporator outlet temperature detection result To is normal, wherein | Δ To | To-Toa |.

S406, if the absolute value of the difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature is larger than or equal to a third preset value, calculating the absolute value of the difference between the evaporator outlet temperature detection result and the compressor suction temperature.

That is, when absolute value | Δ To | of a difference between the evaporator outlet temperature detection result To and the average evaporator outlet temperature Toa is greater than or equal To the third preset value Tos, that is | Δ To ≧ Tos, an absolute value | Δ Ts |, of a difference between the evaporator outlet temperature detection result To and the compressor suction temperature Ts is calculated, where | Δ Ts | -Ts-To |.

And S407, if the absolute value of the difference between the detection result of the outlet temperature of the evaporator and the suction temperature of the compressor is less than a fourth preset value, determining that the outlet temperature of the evaporator is normal.

That is, when the absolute value | Δ Ts |, of the difference between the evaporator outlet temperature detection result To and the compressor suction temperature Ts is less than the fourth preset value Tss, i.e., | Δ Ts | < Tss, it is determined that the evaporator outlet temperature detection result To is normal.

S408, if the absolute value of the difference value between the detection result of the outlet temperature of the evaporator and the suction temperature of the compressor is larger than or equal to a fourth preset value, determining that the detection result of the outlet temperature of the evaporator is distorted.

That is, when an absolute value | Δ Ts | of a difference between the evaporator outlet temperature detection result To and the compressor suction temperature Ts is greater than or equal To the fourth preset value Tss, i.e., | Δ Ts | > Tss, it is determined that the evaporator outlet temperature detection result To is distorted.

Further, according to an embodiment of the present invention, as shown in fig. 6, after determining that the detection result of the evaporator outlet temperature is distorted, the method further includes:

and S409, correcting the detection result of the outlet temperature of the evaporator according to the corrected value of the average outlet temperature of the evaporator or the suction temperature of the compressor.

That is, the evaporator outlet temperature detection result To may be corrected by replacing the average evaporator outlet temperature Toa with the evaporator outlet temperature detection result To, that is, To ═ Toa, or replacing the evaporator outlet temperature detection result To, that is, To ═ Ts + P, with a correction value Ts + P of the compressor suction temperature Ts, where P is a constant.

Specifically, when the internal machine is in a cooling state, obtaining an evaporator outlet temperature detection result To, calculating an average evaporator outlet temperature Toa, and calculating Δ To-Toa;

when | < To, determining that the evaporator outlet temperature detection result To is normal; when |. DELTA.To ≧ Tos, further acquiring the suction temperature Ts of the compressor, and calculating |. Ts-To;

when |. Ts | < Tss, determining that the evaporator outlet temperature detection result To is normal;

and when |. DELTA.Ts ≧ Tss, determining that the evaporator outlet temperature detection result To is distorted, and replacing the evaporator outlet temperature detection result To by replacing the average evaporator outlet temperature Toa with the evaporator outlet temperature detection result To, namely Toa, or replacing the evaporator outlet temperature detection result To, namely To + P with a correction value Ts + P of the compressor suction temperature Ts, wherein P is a constant.

In other words, when the indoor unit is in the cooling state, it is determined whether the evaporator outlet temperature detection result To is distorted based on the compressor suction temperature Ts, the evaporator outlet temperature detection result To, and the average evaporator outlet temperature Toa, and the distorted evaporator outlet temperature detection result To is replaced with the average evaporator outlet temperature Toa or a correction value Ts + P of the compressor suction temperature Ts.

Further, according to the third embodiment of the present invention, as shown in fig. 7, the determining whether the condenser temperature detection result is distorted according to the compressor pressure and the condenser temperature detection result includes:

s501, obtaining a detection result of the middle temperature of the condenser, and calculating the average middle temperature of the condenser.

Alternatively, a temperature sensor may be disposed in the middle of the condenser to obtain a detection result Hm of the temperature in the middle of the condenser, and the average condenser middle temperature Hma of all the internal machines in the cooling operation state may be calculated according to the obtained detection result Hm of the temperature in the middle of the condenser.

S502, obtaining the exhaust pressure of the compressor, and obtaining the saturation temperature corresponding to the exhaust pressure of the compressor.

Alternatively, a pressure sensor may be disposed at the discharge port of the compressor to obtain the discharge pressure Pc of the compressor, and the corresponding saturation temperature Tc may be obtained according to the discharge pressure Pc of the compressor.

And S503, judging whether the detection result of the temperature in the middle of the condenser is distorted or not according to the average temperature in the middle of the condenser and the saturation temperature.

Specifically, according to the third embodiment of the present invention, as shown in fig. 8, the determining whether the detection result of the condenser middle temperature is distorted according to the average condenser middle temperature and the saturation temperature includes:

s504, calculating the absolute value of the difference value between the detection result of the middle temperature of the condenser and the average temperature of the middle of the condenser.

And S505, if the absolute value of the difference value between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser is smaller than a fifth preset value, determining that the detection result of the middle temperature of the condenser is normal.

That is, when the absolute value of the difference between the condenser middle temperature detection result and the average condenser middle temperature is less than the fifth preset value, it is determined that the condenser middle temperature detection result is normal.

That is, when an absolute value | Δ Hm | of a difference between the condenser middle portion temperature detection result Hm and the average condenser middle portion temperature Hma is less than a fifth preset value Hms, i.e., | Δ Hm | is less than Hms, it is determined that the condenser middle portion temperature detection result Hm is normal, wherein | Δ Hm | -Hm-Hma |.

S506, if the absolute value of the difference between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser is larger than or equal to a fifth preset value, the absolute value of the difference between the detection result of the middle temperature of the condenser and the saturation temperature is calculated.

That is, when the absolute value | Δ Hm |, of the difference between the condenser middle temperature detection result Hm and the average condenser middle temperature Hma is greater than or equal to the fifth preset value Hms, i.e., | Δ Hm | > Hms, the absolute value | Δ Tc |, of the difference between the condenser middle temperature detection result Hm and the saturation temperature Tc is calculated, where | Δ Tc |, Tc-Hm |, and the saturation temperature Tc is obtained from the compressor discharge pressure Pc in the above embodiment.

And S507, if the absolute value of the difference value between the detection result of the temperature of the middle part of the condenser and the saturation temperature is smaller than a sixth preset value, determining that the detection result of the temperature of the middle part of the condenser is normal.

That is, when the absolute value Δ Tc |, of the difference between the condenser middle temperature detection result Hm and the saturation temperature Tc is less than the sixth preset value Tcs, i.e., | Δ Tc | < Tcs, it is determined that the condenser middle temperature detection result Hm is normal.

And S508, if the absolute value of the difference value between the condenser middle temperature and the saturation temperature is larger than or equal to a sixth preset value, determining that the detection result of the condenser middle temperature is distorted.

That is, when the absolute value | Δ Tc |, of the difference between the condenser middle temperature detection result Hm and the saturation temperature Tc is greater than or equal to the sixth preset value Tcs, i.e., | Δ Tc | > Tcs, it is determined that the condenser middle temperature detection result Hm is distorted.

Further, according to an embodiment of the present invention, as shown in fig. 8, after determining that the detection result of the temperature in the middle of the condenser is distorted, the method further includes:

and S509, correcting the detection result of the middle temperature of the condenser according to the corrected value of the average middle temperature or the saturated temperature of the condenser.

That is, the condenser middle temperature detection result Hm may be corrected by replacing the average condenser middle temperature Hma with the condenser middle temperature detection result Hm, that is, Hm ═ Hma, or replacing the condenser middle temperature detection result Hm, that is, Hm ═ Tc-J, with a correction value Tc-J of the saturation temperature, where J is a constant.

Specifically, when the internal machine is in a heating state, acquiring a detection result Hm of the middle temperature of the condenser, calculating an average middle temperature Hma of the condenser, and calculating delta Hm as Hm-Hma;

when | Δ Hm | is < Hms, determining that the detection result Hm of the middle part temperature of the condenser is normal; when the delta Hm is not less than Hms, further acquiring a saturation temperature Tc corresponding to the compressor suction pressure Pe and the compressor discharge pressure Pc, and calculating the delta Tc to be Tc-Hm;

when |. Tc | < Tcs, determining that the detection result Hm of the middle part temperature of the condenser is normal;

when the Δ Tc ≧ Tcs, it is determined that the condenser middle temperature detection result Hm is distorted, and at this time, the condenser middle temperature detection result Hm is replaced by replacing the average condenser middle temperature Hm with the condenser middle temperature detection result Hm, i.e., Hm-Hma, or replacing the condenser middle temperature detection result Hm with a correction value Tc-J of the saturation temperature, where J is a constant, i.e., Hm-Tc-J.

In other words, when the internal unit is in a heating state, whether the condenser middle temperature detection result Hm is distorted is judged according to the compressor discharge pressure Pc, the condenser middle temperature detection result Hm and the average condenser middle temperature Hma, and the distorted condenser middle temperature detection result Hm is replaced with the corrected value Tc + K of the saturated temperature Tc corresponding to the average condenser middle temperature Hma or the compressor suction pressure Pe.

Further, according to the fourth embodiment of the present invention, as shown in fig. 9, the determining whether the detection result of the condenser temperature is distorted according to the detection result of the compressor pressure and the condenser temperature further includes:

s601, obtaining a detection result of the outlet temperature of the condenser, and calculating the average outlet temperature of the condenser.

Alternatively, it is possible to obtain the condenser outlet temperature detection result Ho by providing a temperature sensor at the condenser outlet, and calculate the average condenser outlet temperature Hoa of all the internal machines in the cooling operation state based on the obtained condenser outlet temperature detection result Ho.

S602, obtaining the exhaust pressure of the compressor, and obtaining the saturation temperature corresponding to the exhaust pressure of the compressor.

S603, judging whether the detection result of the condenser outlet temperature is distorted according to the average condenser outlet temperature and the saturation temperature.

Further, according to the fourth embodiment of the present invention, as shown in fig. 10, the determining whether the detection result of the condenser outlet temperature is distorted according to the average condenser outlet temperature and the saturation temperature includes:

s604, calculating the absolute value of the difference value between the detection result of the condenser outlet temperature and the average condenser outlet temperature.

And S605, if the absolute value of the difference value between the condenser outlet temperature detection result and the average condenser outlet temperature is less than a seventh preset value, determining that the condenser outlet temperature detection result is normal.

That is, when an absolute value | Δ Ho | of a difference between the condenser outlet temperature detection result Ho and the average condenser outlet temperature Hoa is less than a seventh preset value Hos, i.e., | Δ Ho | is less than Hos, it is determined that the condenser outlet temperature detection result Ho is normal, wherein | Δ Ho | -Ho-Hoa |.

S606, if the absolute value of the difference between the condenser outlet temperature detection result and the average condenser outlet temperature is larger than or equal to a seventh preset value, the absolute value of the difference between the condenser outlet temperature detection result and the saturation temperature is calculated.

That is, when the absolute value | Δ Ho | of the difference between the condenser outlet temperature detection result Ho and the average condenser outlet temperature Hoa is greater than or equal to the seventh preset value Hos, i.e., | Δ Ho ≧ Hos, the absolute value | Δ Tc |, where | Δ Tc | Tc-Tc |, of the difference between the condenser outlet temperature detection result Ho and the saturation temperature Tc is calculated, and the saturation temperature Tc is obtained from the compressor discharge pressure Pc in the above embodiment.

S607, if the absolute value of the difference between the detection result of the outlet temperature of the condenser and the saturation temperature is less than the eighth preset value, determining that the detection result of the outlet temperature of the condenser is normal.

That is, when the absolute value | Δ Tc |, of the difference between the condenser outlet temperature detection result Ho and the saturation temperature Tc is less than the eighth preset value Tcs, i.e., | Δ Tc | < Tcs, it is determined that the condenser outlet temperature detection result Ho is normal.

And S608, if the absolute value of the difference between the condenser outlet temperature detection result and the saturation temperature is greater than or equal to an eighth preset value, determining that the condenser outlet temperature detection result is distorted.

That is, when the absolute value | Δ Tc |, of the difference between the condenser outlet temperature detection result Ho and the saturation temperature Tc is greater than or equal to the second preset value Tcs, i.e., | Δ Tc | > Tcs, it is determined that the condenser outlet temperature detection result Ho is distorted.

Further, according to an embodiment of the present invention, as shown in fig. 10, after determining that the detection result of the condenser outlet temperature is distorted, the method further includes:

and S609, correcting the detection result of the outlet temperature of the condenser according to the corrected value of the average outlet temperature or the saturation temperature of the condenser.

That is, the condenser outlet temperature detection result Ho may be corrected by replacing the average condenser outlet temperature Hoa with the condenser outlet temperature detection result Ho, that is, Ho ═ Hoa, or replacing the correction value Tc-Q of the saturation temperature, where Q is a constant, with the condenser outlet temperature detection result Ho, that is, Ho ═ Tc-Q.

Specifically, when the internal machine is in a heating state, a condenser outlet temperature detection result Ho and a calculated average condenser outlet temperature Hoa are obtained, and Δ Ho is calculated as Ho-Hoa;

when | < Ho, determining that the detection result Ho of the outlet temperature of the condenser is normal; when |, Δ Ho | ≧ Hos, further acquiring a saturation temperature Tc corresponding to a compressor discharge pressure Pc and a compressor suction pressure Pe, and calculating Δ Tc ═ Tc-Ho;

when the delta Tc < Tcs, determining that the detection result Ho of the outlet temperature of the condenser is normal;

when |. DELTA.Tc ≧ Tcs, it is determined that the condenser outlet temperature detection result Ho is distorted, and at this time, the condenser outlet temperature detection result Ho is replaced by replacing the average condenser outlet temperature Hoa with the condenser outlet temperature detection result Ho, i.e., Ho-Hoa, or replacing the condenser outlet temperature detection result Ho-Q with a correction value Tc-Q of the saturation temperature, where Q is a constant.

In other words, when the internal unit is in the heating state, it is determined whether the condenser outlet temperature detection result Ho is distorted according to the compressor discharge pressure Pc, the condenser outlet temperature detection result Ho, and the average condenser outlet temperature Hoa, and the distorted condenser outlet temperature detection result Ho is replaced with the correction value Tc + K of the saturation temperature Tc corresponding to the average condenser outlet temperature Hoa or the compressor suction pressure Pe.

In summary, according to the method for correcting the internal machine temperature detection result provided by the embodiment of the present invention, the detection results of the compressor pressure, the compressor temperature and the internal machine temperature are obtained, whether the internal machine temperature detection result is distorted is determined according to the detection results of the compressor pressure, the compressor temperature and the internal machine temperature, and the internal machine temperature detection result is corrected after the distortion of the internal machine temperature detection result is determined. From this, through compressor pressure, compressor temperature and interior machine temperature testing result, judge whether distortion is done to interior machine temperature testing result to after confirming interior machine temperature testing result distortion, revise interior machine temperature testing result, ensure the accuracy nature of interior machine temperature testing result, thereby, ensure interior machine performance stability, promote user and use experience.

As shown in fig. 11, the apparatus 100 for correcting the detection result of the internal unit temperature includes: the device comprises an acquisition module 1 and a control module 2.

The acquisition module 1 is used for acquiring detection results of compressor pressure, compressor temperature and internal machine temperature; the control module 2 is used for judging whether the detection result of the temperature of the internal machine is distorted according to the pressure of the compressor, the temperature of the compressor and the detection result of the temperature of the internal machine, and correcting the detection result of the temperature of the internal machine when the detection result of the temperature of the internal machine is distorted.

Further, according to an embodiment of the present invention, the detection result of the internal machine temperature includes a detection result of the evaporator temperature and a detection result of the condenser temperature, and the control module 2 is further configured to: whether the inner machine is in a refrigerating state or not is judged, when the inner machine is in the refrigerating state, whether the evaporator temperature detection result is distorted or not is judged according to the compressor pressure, the compressor temperature and the evaporator temperature detection result, whether the inner machine is in a heating state or not is judged when the inner machine is not in the refrigerating state, and whether the condenser temperature detection result is distorted or not is judged according to the compressor pressure and the condenser temperature detection result when the inner machine is in the heating state.

Further, according to an embodiment of the present invention, the obtaining module 1 is further configured to: acquiring a detection result of the temperature of an inlet of the evaporator and the suction pressure of the compressor; the control module 2 is further configured to: and calculating the average evaporator inlet temperature and the average evaporator inlet temperature according to the detection result of the evaporator inlet temperature, acquiring the saturation temperature corresponding to the suction pressure of the compressor, and judging whether the detection result of the evaporator inlet temperature is distorted or not according to the average evaporator inlet temperature and the saturation temperature.

Further, according to an embodiment of the present invention, the obtaining module 1 is further configured to: acquiring an evaporator outlet temperature detection result and a compressor suction temperature; the control module 2 is further configured to: and calculating the average evaporator outlet temperature according to the detection result of the evaporator outlet temperature, and judging whether the detection result of the evaporator outlet temperature is distorted or not according to the average evaporator outlet temperature and the suction temperature of the compressor.

Further, according to an embodiment of the present invention, the obtaining module 1 is further configured to: acquiring a detection result of the temperature of the middle part of the condenser and the exhaust pressure of the compressor; the control module 2 is further configured to: and calculating the average condenser middle temperature and acquiring the saturation temperature corresponding to the compressor exhaust pressure according to the condenser middle temperature detection result, and judging whether the condenser middle temperature detection result is distorted or not according to the average condenser middle temperature and the saturation temperature.

Further, according to an embodiment of the present invention, the obtaining module 1 is further configured to: acquiring a detection result of the outlet temperature of the condenser and the exhaust pressure of the compressor; the control module 2 is further configured to: and calculating the average condenser outlet temperature and acquiring the saturation temperature corresponding to the compressor exhaust pressure according to the detection result of the condenser outlet temperature, and judging whether the detection result of the condenser outlet temperature is distorted or not according to the average condenser outlet temperature and the saturation temperature.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: calculating the absolute value of the difference between the detection result of the evaporator inlet temperature and the average evaporator inlet temperature; when the absolute value of the difference value between the evaporator inlet temperature detection result and the average evaporator inlet temperature is smaller than a first preset value, determining that the evaporator inlet temperature detection result is normal; when the absolute value of the difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature is larger than or equal to a first preset value, calculating the absolute value of the difference between the evaporator inlet temperature detection result and the saturation temperature; when the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is smaller than a second preset value, determining that the evaporator inlet temperature detection result is normal; and when the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is greater than or equal to a second preset value, determining that the evaporator inlet temperature detection result is distorted.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: calculating the absolute value of the difference value between the detection result of the evaporator outlet temperature and the average evaporator outlet temperature; when the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is smaller than a third preset value, determining that the evaporator outlet temperature detection result is normal; when the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is larger than or equal to a third preset value, calculating the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature; when the absolute value of the difference value between the detection result of the outlet temperature of the evaporator and the suction temperature of the compressor is smaller than a fourth preset value, determining that the outlet temperature of the evaporator is normal; and when the absolute value of the difference value between the detection result of the outlet temperature of the evaporator and the suction temperature of the compressor is greater than or equal to a fourth preset value, determining that the detection result of the outlet temperature of the evaporator is distorted.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: calculating the absolute value of the difference between the detection result of the middle temperature of the condenser and the average temperature of the middle of the condenser; when the absolute value of the difference value between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser is smaller than a fifth preset value, determining that the detection result of the middle temperature of the condenser is normal; when the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the average temperature in the middle of the condenser is larger than or equal to a fifth preset value, calculating the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the saturation temperature; when the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the saturation temperature is smaller than a sixth preset value, determining that the detection result of the temperature in the middle of the condenser is normal; and when the absolute value of the difference value between the condenser middle temperature and the saturation temperature is larger than or equal to a sixth preset value, determining that the detection result of the condenser middle temperature is distorted.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: calculating the absolute value of the difference value between the detection result of the outlet temperature of the condenser and the average outlet temperature of the condenser, and determining that the detection result of the outlet temperature of the condenser is normal when the absolute value of the difference value between the detection result of the outlet temperature of the condenser and the average outlet temperature of the condenser is smaller than a seventh preset value; when the absolute value of the difference value between the condenser outlet temperature detection result and the average condenser outlet temperature is larger than or equal to a seventh preset value, calculating the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature; when the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is smaller than an eighth preset value, determining that the condenser outlet temperature detection result is normal; and when the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is greater than or equal to an eighth preset value, determining that the condenser outlet temperature detection result is distorted.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: and correcting the detection result of the inlet temperature of the evaporator according to the corrected value of the average inlet temperature or the saturated temperature of the evaporator.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: and correcting the detection result of the outlet temperature of the evaporator according to the corrected value of the average outlet temperature of the evaporator or the suction temperature of the compressor.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: and correcting the detection result of the middle temperature of the condenser according to the corrected value of the average middle temperature or the saturated temperature of the condenser.

Further, according to an embodiment of the present invention, the control module 2 is further configured to: and correcting the detection result of the outlet temperature of the condenser according to the corrected value of the average outlet temperature or the saturated temperature of the condenser.

It should be noted that the correction device for the internal machine temperature detection result provided in the embodiment of the present invention corresponds to the correction method for the internal machine temperature detection result one to one, and details are not described herein again.

In summary, according to the device for correcting the detection result of the internal machine temperature provided by the embodiment of the invention, the detection result of the compressor pressure, the compressor temperature and the internal machine temperature is obtained through the obtaining module, whether the detection result of the internal machine temperature is distorted is judged through the control module according to the detection result of the compressor pressure, the compressor temperature and the internal machine temperature, and when the detection result of the internal machine temperature is distorted, the detection result of the internal machine temperature is corrected. From this, through compressor pressure, compressor temperature and interior machine temperature testing result, judge whether distortion is done to interior machine temperature testing result to after confirming interior machine temperature testing result distortion, revise interior machine temperature testing result, ensure the accuracy nature of interior machine temperature testing result, thereby, ensure interior machine performance stability, promote user and use experience.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "" first "" and "" second "" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "a," "an," or "the" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, one, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise explicitly specified or limited, a feature "on" or "under" a first feature may be in direct contact with the first feature, or in indirect contact with the first feature through an intermediate. Also, a feature "above," "over," and "on" a first feature may be directly or diagonally above the first feature, or may simply mean that the feature is at a higher level than the first feature. A feature "under," "below," and "beneath" a feature may be directly or obliquely under the feature or may simply mean that the feature is at a lesser elevation than the first feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A method for correcting the detection result of the temperature of an internal machine is characterized by comprising the following steps:

obtaining the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the internal machine;

judging whether the internal machine temperature detection result is distorted according to the compressor pressure or the compressor temperature and the internal machine temperature detection result;

if the internal unit temperature detection result is distorted, correcting the internal unit temperature detection result;

wherein, the indoor set temperature measurement result includes evaporimeter temperature measurement result and condenser temperature measurement result, according to compressor pressure or compressor temperature with indoor set temperature measurement result, judge whether interior machine temperature measurement result distorts includes:

judging whether the internal machine is in a refrigeration state or not;

if the internal machine is in a refrigerating state, judging whether the detection result of the inlet or outlet temperature of the evaporator is distorted according to the detection result of the compressor pressure or the compressor temperature and the evaporator temperature;

if the indoor unit is not in a refrigerating state, judging whether the indoor unit is in a heating state or not;

if the internal machine is in a heating state, judging whether the detection result of the middle part or the outlet temperature of the condenser is distorted according to the detection result of the pressure of the compressor and the temperature of the condenser, wherein the number of the internal machines is multiple, and judging whether the detection result of the middle part or the outlet temperature of the condenser is distorted according to the detection result of the pressure of the compressor and the temperature of the condenser, the method further comprises the following steps: acquiring a detection result of the outlet temperature of the condenser, and calculating the average outlet temperature of the condenser of all the indoor units in the heating operation state; acquiring the exhaust pressure of a compressor, and acquiring the saturation temperature corresponding to the exhaust pressure of the compressor; calculating an absolute value of a difference between the condenser outlet temperature detection result and the average condenser outlet temperature; if the absolute value of the difference value between the condenser outlet temperature detection result and the average condenser outlet temperature is smaller than a seventh preset value, determining that the condenser outlet temperature detection result is normal; if the absolute value of the difference between the condenser outlet temperature detection result and the average condenser outlet temperature is greater than or equal to a seventh preset value, calculating the absolute value of the difference between the condenser outlet temperature detection result and the saturation temperature; if the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is smaller than an eighth preset value, determining that the condenser outlet temperature detection result is normal; and if the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is greater than or equal to an eighth preset value, determining that the condenser outlet temperature detection result is distorted.

2. The method of claim 1, wherein the number of the indoor units is plural, and the determining whether the detection result of the inlet or outlet temperature of the evaporator is distorted according to the detection result of the compressor pressure or the compressor temperature and the evaporator temperature includes:

acquiring an evaporator inlet temperature detection result, and calculating the average evaporator inlet temperature of all the internal machines in a refrigeration running state;

acquiring the suction pressure of a compressor, and acquiring the saturation temperature corresponding to the suction pressure of the compressor;

calculating an absolute value of a difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature;

if the absolute value of the difference value between the evaporator inlet temperature detection result and the average evaporator inlet temperature is smaller than a first preset value, determining that the evaporator inlet temperature detection result is normal;

if the absolute value of the difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature is greater than or equal to a first preset value, calculating the absolute value of the difference between the evaporator inlet temperature detection result and the saturation temperature;

if the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is smaller than a second preset value, determining that the evaporator inlet temperature detection result is normal;

and if the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is greater than or equal to a second preset value, determining that the evaporator inlet temperature detection result is distorted.

3. The method as set forth in claim 1, wherein the number of the indoor units is plural, and the determining whether the detection result of the inlet or outlet temperature of the evaporator is distorted according to the detection result of the compressor pressure or the compressor temperature and the evaporator temperature, further comprises:

obtaining the detection result of the outlet temperature of the evaporator, and calculating the average outlet temperature of the evaporator of all the internal machines in the refrigeration running state;

acquiring the suction temperature of a compressor;

calculating an absolute value of a difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature;

if the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is smaller than a third preset value, determining that the evaporator outlet temperature detection result is normal;

if the absolute value of the difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature is greater than or equal to a third preset value, calculating the absolute value of the difference between the evaporator outlet temperature detection result and the compressor suction temperature;

if the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is smaller than a fourth preset value, determining that the evaporator outlet temperature is normal;

and if the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is greater than or equal to a fourth preset value, determining that the evaporator outlet temperature detection result is distorted.

4. The method as set forth in claim 1, wherein the number of the indoor units is plural, and said judging whether the detection result of the middle or outlet temperature of the condenser is distorted according to the detection result of the compressor pressure and the condenser temperature further comprises:

acquiring a detection result of the middle temperature of the condenser, and calculating the average middle temperature of the condenser of all the indoor units in the heating operation state;

acquiring the exhaust pressure of a compressor, and acquiring the saturation temperature corresponding to the exhaust pressure of the compressor;

calculating the absolute value of the difference between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser;

if the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the average temperature in the middle of the condenser is smaller than a fifth preset value, determining that the detection result of the temperature in the middle of the condenser is normal;

if the absolute value of the difference between the condenser middle temperature detection result and the average condenser middle temperature is greater than or equal to a fifth preset value, calculating the absolute value of the difference between the condenser middle temperature detection result and the saturation temperature;

if the absolute value of the difference value between the condenser middle temperature detection result and the saturation temperature is smaller than a sixth preset value, determining that the condenser middle temperature detection result is normal;

and if the absolute value of the difference value between the condenser middle temperature and the saturation temperature is larger than or equal to a sixth preset value, determining that the detection result of the condenser middle temperature is distorted.

5. The method of claim 2, wherein said determining that the evaporator inlet temperature detection is distorted further comprises:

and correcting the detection result of the inlet temperature of the evaporator according to the corrected value of the saturation temperature corresponding to the average inlet temperature of the evaporator or the suction pressure of the compressor.

6. The method of claim 3, wherein said determining that said evaporator outlet temperature detection is distorted further comprises:

and correcting the detection result of the outlet temperature of the evaporator according to the corrected value of the outlet temperature of the average evaporator or the suction temperature of the compressor.

7. The method of claim 4, wherein said determining that said condenser mid-section temperature detection is distorted further comprises:

and correcting the detection result of the temperature in the middle of the condenser according to the corrected value of the average temperature in the middle of the condenser or the saturated temperature corresponding to the exhaust pressure of the compressor.

8. The method of claim 1, wherein said determining that said condenser outlet temperature detection is distorted further comprises:

and correcting the detection result of the outlet temperature of the condenser according to the corrected value of the average outlet temperature of the condenser or the saturated temperature corresponding to the exhaust pressure of the compressor.

9. The utility model provides a correcting unit of interior machine temperature testing result which characterized in that includes:

the acquisition module is used for acquiring the detection results of the pressure of the compressor, the temperature of the compressor and the temperature of the internal machine;

the control module is used for judging whether the internal machine temperature detection result is distorted according to the compressor pressure or the compressor temperature and the internal machine temperature detection result, and correcting the internal machine temperature detection result when the internal machine temperature detection result is distorted;

wherein, interior machine temperature testing result includes evaporimeter temperature testing result and condenser temperature testing result, control module still is used for: judging whether the inner machine is in a refrigerating state, judging whether the detection result of the inlet or outlet temperature of the evaporator is distorted according to the pressure of the compressor or the temperature of the compressor and the detection result of the temperature of the evaporator when the inner machine is in the refrigerating state, judging whether the inner machine is in a heating state when the inner machine is not in the refrigerating state, and judging whether the detection result of the middle part or outlet temperature of the condenser is distorted according to the pressure of the compressor and the detection result of the temperature of the condenser when the inner machine is in the heating state;

the number of the internal machines is multiple, and the acquisition module is further used for: acquiring a detection result of the outlet temperature of the condenser and the exhaust pressure of the compressor; the control module is further configured to: calculating the average condenser outlet temperature of all the indoor units in the heating operation state and acquiring the saturation temperature corresponding to the compressor exhaust pressure according to the detection result of the condenser outlet temperature; the control module is further configured to: calculating the absolute value of the difference between the detection result of the condenser outlet temperature and the average condenser outlet temperature, and determining that the detection result of the condenser outlet temperature is normal when the absolute value of the difference between the detection result of the condenser outlet temperature and the average condenser outlet temperature is less than a seventh preset value; when the absolute value of the difference between the condenser outlet temperature detection result and the average condenser outlet temperature is greater than or equal to a seventh preset value, calculating the absolute value of the difference between the condenser outlet temperature detection result and the saturation temperature; when the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is smaller than an eighth preset value, determining that the condenser outlet temperature detection result is normal; and when the absolute value of the difference value between the condenser outlet temperature detection result and the saturation temperature is greater than or equal to an eighth preset value, determining that the condenser outlet temperature detection result is distorted.

10. The apparatus according to claim 9, wherein the number of the inner machines is plural,

the acquisition module is further configured to: acquiring a detection result of the temperature of an inlet of the evaporator and the suction pressure of the compressor;

the control module is further configured to: calculating the average evaporator inlet temperature of all the internal machines in the refrigerating running state according to the detection result of the evaporator inlet temperature, and acquiring the saturation temperature corresponding to the suction pressure of the compressor;

the control module is further configured to: calculating an absolute value of a difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature;

when the absolute value of the difference value between the evaporator inlet temperature detection result and the average evaporator inlet temperature is smaller than a first preset value, determining that the evaporator inlet temperature detection result is normal;

when the absolute value of the difference between the evaporator inlet temperature detection result and the average evaporator inlet temperature is greater than or equal to a first preset value, calculating the absolute value of the difference between the evaporator inlet temperature detection result and the saturation temperature;

when the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is smaller than a second preset value, determining that the evaporator inlet temperature detection result is normal;

and when the absolute value of the difference value between the evaporator inlet temperature detection result and the saturation temperature is greater than or equal to a second preset value, determining that the evaporator inlet temperature detection result is distorted.

11. The apparatus according to claim 9, wherein the number of the inner machines is plural,

the acquisition module is further configured to: acquiring an evaporator outlet temperature detection result and a compressor suction temperature;

the control module is further configured to: calculating the average evaporator outlet temperature of all the internal machines in the refrigerating running state according to the detection result of the evaporator outlet temperature;

the control module is further configured to: calculating an absolute value of a difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature;

when the absolute value of the difference value between the evaporator outlet temperature detection result and the average evaporator outlet temperature is smaller than a third preset value, determining that the evaporator outlet temperature detection result is normal;

when the absolute value of the difference between the evaporator outlet temperature detection result and the average evaporator outlet temperature is greater than or equal to a third preset value, calculating the absolute value of the difference between the evaporator outlet temperature detection result and the compressor suction temperature;

when the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is smaller than a fourth preset value, determining that the evaporator outlet temperature is normal;

and when the absolute value of the difference value between the evaporator outlet temperature detection result and the compressor suction temperature is greater than or equal to a fourth preset value, determining that the evaporator outlet temperature detection result is distorted.

12. The apparatus according to claim 9, wherein the number of the inner machines is plural,

the acquisition module is further configured to: acquiring a detection result of the temperature of the middle part of the condenser and the exhaust pressure of the compressor;

the control module is further configured to: calculating the average condenser middle temperature of all the indoor units in the heating operation state and acquiring the saturation temperature corresponding to the compressor exhaust pressure according to the detection result of the condenser middle temperature;

the control module is further configured to: calculating the absolute value of the difference between the detection result of the middle temperature of the condenser and the average middle temperature of the condenser;

when the absolute value of the difference value between the detection result of the temperature in the middle of the condenser and the average temperature in the middle of the condenser is smaller than a fifth preset value, determining that the detection result of the temperature in the middle of the condenser is normal;

when the absolute value of the difference between the condenser middle temperature detection result and the average condenser middle temperature is greater than or equal to a fifth preset value, calculating the absolute value of the difference between the condenser middle temperature detection result and the saturation temperature;

when the absolute value of the difference value between the condenser middle temperature detection result and the saturation temperature is smaller than a sixth preset value, determining that the condenser middle temperature detection result is normal;

and when the absolute value of the difference value between the condenser middle temperature and the saturation temperature is larger than or equal to a sixth preset value, determining that the detection result of the condenser middle temperature is distorted.

13. The apparatus of claim 10, wherein the control module is further to:

14. The apparatus of claim 11, wherein the control module is further to:

15. The apparatus of claim 12, wherein the control module is further to: and correcting the detection result of the temperature in the middle of the condenser according to the corrected value of the average temperature in the middle of the condenser or the saturated temperature corresponding to the exhaust pressure of the compressor.

16. The apparatus of claim 9, wherein the control module is further to: and correcting the detection result of the outlet temperature of the condenser according to the corrected value of the average outlet temperature of the condenser or the saturated temperature corresponding to the exhaust pressure of the compressor.