Detection method, upper computer, control device and electrical appliance for electrical appliance

Abstract

A detection method, host computer, control device, and electrical equipment are disclosed. The detection method includes a temperature sensor determination step, which comprises: acquiring the difference between the temperature values ​​of a first temperature sensor and a second temperature sensor; comparing the difference with a preset range; determining that the first temperature sensor and the second temperature sensor are reversed when the difference exceeds the preset range, and issuing a temperature sensor reversed connection fault warning message; and determining that the first temperature sensor and the second temperature sensor are correctly connected when the difference is within the preset range. The solution provided by the embodiments of this application can determine whether the first temperature sensor and the second temperature sensor in an electrical device are reversed.

Description

Technical Field

[0001] This article relates to equipment testing technology, particularly a testing method, host computer, control device, and electrical equipment for electrical equipment. Background Technology

[0002] To ensure high-precision temperature measurement, electrical equipment typically uses different thermistors for temperature sensors. For example, the exhaust temperature sensor in an air conditioning system usually uses a thermistor suitable for higher temperature environments, while the intake temperature sensor usually uses a thermistor suitable for lower temperature environments. As a result, for the same resistance value, the temperature value corresponding to the exhaust temperature sensor is higher than that of the intake temperature sensor.

[0003] During the production of air conditioning system equipment, it is very easy to insert the intake and exhaust temperature sensors into the electrical control board socket of the control device in the wrong way. That is, the intake and exhaust temperature sensors are easily connected in reverse. This is because the intake and exhaust temperature sensors use different thermistors. When connected in reverse, it will lead to inaccurate temperature detection during system operation.

[0004] To address the issue of intake and exhaust temperature sensors being easily connected in reverse, a detection method is needed to determine whether they are connected incorrectly. Summary of the Invention

[0005] This application provides a detection method, host computer, control device, and electrical equipment for detecting whether temperature sensors of different thermistors in the electrical equipment are connected in reverse.

[0006] Embodiments of this application provide a detection method for electrical equipment, the electrical equipment having a first temperature sensor installed at a first position and a second temperature sensor installed at a second position, wherein the first temperature sensor and the second temperature sensor are configured to correspond to different temperature values ​​at the same resistance value, characterized in that the detection method includes a temperature sensor determination step, the temperature sensor determination step including: Obtain the temperature difference between the first temperature sensor and the second temperature sensor; The difference is compared with a preset range; When the difference exceeds the preset range, it is determined that the first temperature sensor and the second temperature sensor are connected in reverse, and a temperature sensor reverse connection fault reminder message is issued. When the difference is within the preset range, it is determined that the first temperature sensor and the second temperature sensor are connected correctly.

[0007] In one embodiment, obtaining the temperature difference between the first temperature sensor and the second temperature sensor includes: The temperature values ​​corresponding to the resistance values ​​of the first temperature sensor and the second temperature sensor are obtained respectively; The temperature values ​​of the first temperature sensor and the second temperature sensor are calculated to differentiate.

[0008] In one embodiment, the detection method further includes: issuing a stop detection command based on the determination that the first temperature sensor and the second temperature sensor are connected in reverse, so as to perform a connection adjustment operation of the first temperature sensor and the second temperature sensor.

[0009] In one embodiment, after adjusting the connection between the first temperature sensor and the second temperature sensor, the temperature sensor determination step is repeated.

[0010] In one embodiment, the temperature sensor determination step is performed before the electrical equipment is turned on.

[0011] In one embodiment, the method further includes: after determining that the first temperature sensor and the second temperature sensor are correctly connected, issuing a power-on command to power on the electrical device and perform a power-on detection step.

[0012] In one embodiment, the electrical equipment is an air conditioning system, and in the start-up detection step, the operating frequency of the compressor of the air conditioning system is set to be lower than a predetermined frequency.

[0013] In one embodiment, the electrical device is an air conditioning system, wherein the first temperature sensor is disposed at the suction end of the compressor of the air conditioning system, and the second temperature sensor is disposed at the discharge end of the compressor; or, the second temperature sensor is disposed at the suction end of the compressor, and the first temperature sensor is disposed at the discharge end of the compressor.

[0014] An embodiment of this application also provides a host computer configured to connect to an electrical device. The host computer is configured to execute a detection program to implement the detection method described above, so as to detect the electrical device.

[0015] Embodiments of this application also provide a control device, the control device including a detection module, the detection module being configured to execute a detection program to implement the detection method described above.

[0016] Embodiments of this application also provide an electrical device, including a first temperature sensor installed at a first position and a second temperature sensor installed at a second position, as well as a control device as described above, wherein the first temperature sensor and the second temperature sensor are configured to correspond to different temperatures at the same resistance value.

[0017] The solution provided in the embodiments of this application can determine whether the first temperature sensor and the second temperature sensor in an electrical device are connected in reverse by comparing the absolute value of the difference between the temperature values ​​of the first temperature sensor and the second temperature sensor with a preset threshold.

[0018] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0020] Figure 1 This is a schematic diagram showing the connection of a first temperature sensor and a second temperature sensor in an air conditioning system according to an embodiment of this application (the first temperature sensor and the second temperature sensor are correctly connected). Figure 2 This is a schematic diagram showing the connection of a first temperature sensor and a second temperature sensor in an air conditioning system according to another embodiment of this application (the first temperature sensor and the second temperature sensor are connected in reverse). Figure 3 This is a schematic diagram showing the connection of a first temperature sensor and a second temperature sensor in an air conditioning system according to another embodiment of this application (the first temperature sensor and the second temperature sensor are connected in reverse). Figure 4 This is a flowchart illustrating a detection method according to one embodiment of this application. Detailed Implementation

[0021] This application describes several embodiments, but these descriptions are exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0022] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

[0023] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0024] Embodiments of this application provide a detection method for electrical equipment. The electrical equipment has a first temperature sensor installed at a first position and a second temperature sensor installed at a second position. The first and second temperature sensors are configured to correspond to different temperatures at the same resistance value. The detection method includes a temperature sensor determination step, such as... Figure 4 As shown, the temperature sensor determination step includes: Obtain the temperature difference between the first temperature sensor and the second temperature sensor; Compare the difference with a preset range; When the difference exceeds the preset range, it is determined that the first temperature sensor and the second temperature sensor are connected in reverse, and a fault reminder message for reversed temperature sensor connection is issued. When the difference is within the preset range, it is determined that the first temperature sensor and the second temperature sensor are connected correctly.

[0025] Since the first and second temperature sensors obtain temperature values ​​based on their resistance values, when the first and second temperature sensors are not connected in reverse, their respective temperature values ​​are obtained based on their own resistance values, and these temperature values ​​are accurate. Under the same ambient temperature, the difference between the two temperature values ​​will be slightly different, but will not exceed the preset range. When the first and second temperature sensors are connected in reverse, the temperature value of one sensor is obtained based on the resistance value of the other, and the difference between the two temperature values ​​will exceed the preset range. Therefore, by comparing the difference with the preset range, it can be determined whether the first and second temperature sensors in the electrical device are connected in reverse.

[0026] In order to determine whether the difference is within the preset range, a preset threshold can be set. When the difference in temperature values ​​is positive, the preset range can be set to be greater than the preset threshold. When the difference is negative, the preset range can be set to be less than the preset threshold. Alternatively, the absolute value of the difference can be compared with the preset threshold. When the absolute value of the difference is greater than the preset threshold, it exceeds the preset range. When it does not exceed the preset threshold, it is within the preset range.

[0027] In some embodiments, the electrical device may be an air conditioning system, wherein the first temperature sensor is a temperature sensor disposed at the exhaust end and the second temperature sensor is a temperature sensor disposed at the intake end, or the first temperature sensor is a temperature sensor disposed at the intake end and the second temperature sensor is a temperature sensor disposed at the exhaust end.

[0028] In air conditioning systems, different thermistors are typically used as exhaust and intake temperature sensors. Exhaust temperature sensors usually employ thermistors suitable for higher temperature environments, while intake temperature sensors typically use thermistors suitable for lower temperature environments. This results in the exhaust temperature sensor displaying a higher temperature reading than the intake temperature sensor for the same resistance value. Because the intake and exhaust temperature sensors are easily reversed when inserted into the control device during the air conditioning system manufacturing process, the detection method provided in this application can determine whether the connection between the intake and exhaust temperature sensors is accurate.

[0029] Figure 1 This diagram illustrates the connection of a first temperature sensor and a second temperature sensor in an air conditioning system according to an embodiment. The first temperature sensor is an exhaust temperature sensor Tp installed at the exhaust end 101 of the compressor 100, and the second temperature sensor is an intake temperature sensor Th installed at the intake end 102 of the compressor 100. The exhaust temperature sensor Tp is connected to the Tp port 201 of the control device 200, and the intake temperature sensor Th is connected to the Th port 202 of the control device 200. Figure 1The connection method of the first and second temperature sensors is correct.

[0030] The above detection method was used for... Figure 1 When testing the air conditioning system, the test can be performed before the compressor is turned on. Before startup, the compressor's operation will not affect the temperature sensor values, resulting in more accurate testing. Since the exhaust temperature sensor Tp and the intake temperature sensor Th are correctly connected and are at the same ambient temperature, their temperature values ​​are not significantly different. Therefore, the absolute value of the temperature difference between the exhaust temperature sensor Tp and the intake temperature sensor Th does not exceed a preset threshold, confirming that the exhaust temperature sensor Tp and the intake temperature sensor Th are correctly connected.

[0031] Figure 2 A schematic diagram showing the connection of a first temperature sensor and a second temperature sensor in an air conditioning system according to another embodiment is shown. The first temperature sensor is an exhaust end temperature sensor Tp installed at the exhaust end 101 of the compressor 100, and the second temperature sensor is an intake end temperature sensor Th installed at the intake end 102. The exhaust end temperature sensor Tp is connected to the Th port 202 of the control device, and the intake end temperature sensor Th is connected to the Tp port 201 of the control device. Figure 2 The exhaust temperature sensor Tp and the intake temperature sensor Th are reversed. The exhaust temperature sensor Tp should be connected to port 201 of Tp, and the intake temperature sensor Th should be connected to port 202 of Th.

[0032] The above detection method was used for... Figure 2When the air conditioning system is tested (compressor pre-start test), as shown in Table 1 below, before the compressor starts, under various ambient temperatures, for example, when the ambient temperature is 35℃, the actual temperatures of the compressor's discharge end 101 and suction end 102 are both 35℃. The resistance of the temperature sensor at the compressor's suction end (the suction end temperature sensor Th is installed at the suction end) is 6.4, and the resistance of the temperature sensor at the compressor's discharge end (the discharge end temperature sensor Tp is installed at the discharge end) is 36.4. The temperature value obtained by the control device 200 from the temperature sensor connected to port 201 (Tp port) is 82, and the temperature value of the temperature sensor connected to port 202 (Th port) is -1. Because port 201 is connected to the suction end temperature sensor... The temperature value 82 of the exhaust end temperature sensor Tp at port Tp 201 is actually obtained based on the resistance value 6.4 of the intake end temperature sensor Th (it should be obtained based on the resistance value 36.4 of the exhaust end temperature sensor Tp). Similarly, the temperature value -1 of the intake end temperature sensor Th obtained at port Th 202 is actually obtained based on the resistance value 36.4 of the exhaust end temperature sensor Tp (it should be obtained based on the resistance value 6.4 of the intake end temperature sensor Th). This will cause the difference between the temperature value obtained from port Tp 201 and the temperature value obtained from port Th 202 to be greater than a preset threshold (the preset threshold can be set to 60°, and of course, it can be set to other thresholds as needed). Similarly, when the ambient temperature is 25℃, 15℃, 5℃ and 0℃, the temperature values ​​of the exhaust end temperature sensor Tp obtained by the control device 200 from the Tp port 201 and the temperature values ​​of the intake end temperature sensor Th obtained from the Th port 202 are all incorrect. The absolute value of the difference between the obtained temperature values ​​of the exhaust end temperature sensor Tp and the intake end temperature sensor Th is greater than the preset threshold, so it can be determined that the exhaust end temperature sensor Tp and the intake end temperature sensor Th are reversed.

[0033] It should be noted that Tables 1, 2 and 3 below show the relationship between the resistance value and temperature of the temperature sensor used in the embodiments of this application. When using other temperature sensors, there may be other resistance values ​​at the same temperature.

[0034] Figure 3 A schematic diagram showing the connection of a first temperature sensor and a second temperature sensor in an air conditioning system provided in another embodiment is shown. The first temperature sensor is a suction end temperature sensor Th installed at the discharge end 101 of the compressor 100, and the second temperature sensor is a discharge end temperature sensor Tp installed at the suction end 102. The discharge end temperature sensor Tp is connected to the Th port 202 of the control device 200, and the suction end temperature sensor Th is connected to the Tp port 201 of the control device. Figure 3 The exhaust temperature sensor Tp and the suction temperature sensor Th are connected in reverse. The exhaust temperature sensor Tp should be connected to the exhaust end 101 of the compressor, and the suction temperature sensor Th should be connected to the suction end 102 of the compressor. Figure 2 Similar to the example in the example, since port 201 is connected to the intake temperature sensor Th, and the temperature value of the exhaust temperature sensor Tp from port 201 is actually the temperature value obtained based on the resistance value of the intake temperature sensor Th, and the temperature value of the intake temperature sensor Th obtained from port 202 is actually the temperature value obtained based on the resistance value of the exhaust temperature sensor Tp, the absolute value of the difference between the temperature value of the exhaust temperature sensor Tp and the temperature value of the intake temperature sensor Th will be greater than a preset threshold, so it can be determined that the exhaust temperature sensor Tp and the intake temperature sensor Th are connected in reverse.

[0035] It is understood that the electrical equipment using the detection method of this application is not limited to air conditioning systems; other devices with a first temperature sensor and a second temperature sensor (which correspond to different temperatures under the same resistance value) can also be used.

[0036] In one embodiment, obtaining the temperature difference between the first temperature sensor and the second temperature sensor includes: Obtain the temperature values ​​corresponding to the resistance values ​​of the first and second temperature sensors; calculate the difference between the temperature values ​​of the first and second temperature sensors.

[0037] In one example, the detection program implementing the detection method is run by a host computer connected to the electrical equipment. The detection method is executed when the host computer runs the detection program, thereby achieving the detection of the electrical equipment. The control device of the electrical equipment obtains the corresponding temperature value based on the resistance values ​​of the first and second temperature sensors and sends it to the host computer. The host computer receives the temperature values ​​from the first and second temperature sensors and calculates the difference. Alternatively, the host computer can directly obtain the difference between the temperature values ​​of the first and second temperature sensors from the control device.

[0038] In another example, the detection program implementing the detection method can be run by the control device of the electrical equipment itself, i.e., the electrical equipment performs a self-test. The control device acquires the resistance values ​​of the first and second temperature sensors, obtains the corresponding temperature values ​​based on the resistance values, and then performs steps such as difference calculation and comparison judgment.

[0039] In one embodiment, the temperature sensor determination step is performed before the electrical equipment is turned on. For example, in the case of an air conditioning system, the compressor operation causes the temperature of the temperature sensor located at the exhaust end to rise, while the temperature of the temperature sensor at the intake end decreases. This can affect the determination result of whether the temperature sensors at the exhaust and intake ends are connected in reverse. Figure 2 The air conditioning system is tested after startup, and the test data is shown in Table 2 below. After the compressor is started, the resistance of the exhaust temperature sensor Tp and the suction temperature sensor Th changes due to the operation of the compressor. Even if the exhaust temperature sensor Tp and the suction temperature sensor Th are connected incorrectly to the Tp interface 201 and the Th interface 202 of the control device 200, the temperature difference between the exhaust temperature sensor Tp and the suction temperature sensor Th will decrease and may be lower than the preset threshold. Therefore, there is a possibility of misjudging as qualified.

[0040] Therefore, performing temperature sensor determination before starting electrical equipment can improve detection accuracy. It's also understandable that reducing the compressor's operating frequency can decrease the impact of compressor operation on the resistance values ​​of the discharge end temperature sensor Tp and the suction end temperature sensor Th. To further reduce the influence of compressor operation on the temperature sensors, the temperature sensor determination step can be performed after the compressor has stopped running for a certain period of time.

[0041] In one embodiment, the detection method further includes: issuing a stop detection command when it is determined that the first temperature sensor and the second temperature sensor are connected in reverse, so as to perform a connection adjustment operation on the first temperature sensor and the second temperature sensor. That is, when an incorrect connection of the first temperature sensor and the second temperature sensor is detected, the detection stops, and the connection of the first temperature sensor and the second temperature sensor can be manually adjusted.

[0042] If subsequent testing continues even after the first and second temperature sensors are determined to be reversed, the subsequent testing, including a power-on test, will cause changes in the resistance of the first and second temperature sensors. As shown in Table 3, if the initial test shows a connection error (the absolute value of the temperature difference exceeds a preset threshold of 60), and a second or third test is required due to other equipment issues, the temperature difference between the first and second sensors will decrease due to the temperature change. This means that if the initial test fails, the second or third test may be deemed successful due to the temperature change, leading to a misjudgment. Therefore, when the first and second temperature sensors are determined to be reversed, a stop-test command should be issued. Testing can only continue after the connection of the first and second temperature sensors is adjusted.

[0043] Understandably, if the first test fails, the test can continue. Before the second test, the first and second temperature sensors can be adjusted.

[0044] In one embodiment, after adjusting the connection between the first temperature sensor and the second temperature sensor, the temperature sensor determination step is repeated. This can prevent the problem of reversing the connection again. Subsequent detection steps can only be performed after the connection between the first temperature sensor and the second temperature sensor is determined to be correct.

[0045] In one embodiment, the detection method may further include: after determining that the first temperature sensor and the second temperature sensor are correctly connected before the electrical equipment is turned on, issuing a power-on command to turn on the electrical equipment and thus proceed with subsequent power-on detection steps. For example, after the detection steps before the air conditioning system is turned on are completed, the air conditioning system can be turned on to perform tests such as the operation of the compressor.

[0046] In one example, the electrical equipment is an air conditioning system. During the start-up testing step, the compressor frequency of the air conditioning system is set to be lower than a predetermined frequency. This way, if other problems arise during the initial start-up testing, the impact of the compressor's operation on the first and second temperature sensors can be reduced during secondary or tertiary testing. This avoids the problem of the first and second temperature sensors being misjudged as unqualified due to temperature variations during secondary or tertiary testing.

[0047] An embodiment of this application also provides a host computer connected to an electrical device, the host computer being configured to execute a detection program to implement the detection method described above, so as to detect the electrical device.

[0048] The host computer is suitable for factory testing of electrical equipment. The following describes the factory testing process of electrical equipment according to an embodiment, in which the electrical equipment is an air conditioning system.

[0049] The air conditioning system is connected to the host computer, and the air conditioning system is in a non-operated state. The control device of the air conditioning system acquires the temperature values ​​corresponding to the resistance values ​​of the first and second temperature sensors and sends them to the host computer. The host computer then acquires the temperature values ​​from the first and second temperature sensors and calculates the difference. The first temperature sensor is located at the compressor's exhaust end, and the second temperature sensor is located at the compressor's intake end.

[0050] If the absolute value of the difference between the temperature values ​​of the first temperature sensor and the second temperature sensor exceeds a preset threshold (60 degrees Celsius), it is determined that the first and second temperature sensors are connected in reverse. The host computer issues a reverse connection fault warning and stops the detection. After the connection of the first and second temperature sensors is manually adjusted, the host computer restarts the detection. This detection may include other detection steps besides the step of checking the connection between the first and second temperature sensors.

[0051] If the absolute value of the difference between the temperature values ​​of the first temperature sensor and the second temperature sensor is less than or equal to a preset threshold, the subsequent detection steps continue.

[0052] After the pre-start testing steps of the air conditioning system are completed, a start command is given, the air conditioning system starts up, and the post-start testing steps continue.

[0053] Embodiments of this application also provide a control device, the control device including a detection module, the detection module being configured to execute a detection program to implement the detection method described above.

[0054] Embodiments of this application also provide an electrical device, including a first temperature sensor installed at a first position, a second temperature sensor installed at a second position, and the aforementioned control device, wherein the first temperature sensor and the second temperature sensor are configured to correspond to different temperatures at the same resistance value.

[0055] By executing the testing method described above through the control device of the electrical equipment, the electrical equipment can perform self-testing. Self-testing can be applied to the factory testing of electrical equipment as well as to the after-sales maintenance testing.

[0056] The specific process of the control device executing the detection program is similar to that of the host computer described above, and will not be repeated here.

[0057] It will be understood by those skilled in the art that all or some of the steps, systems, or apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term "computer storage medium" includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0058] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A detection method for an electric appliance having a first temperature sensor installed at a first location and a second temperature sensor installed at a second location, the first and second temperature sensors being arranged so that corresponding temperature values are different at the same resistance value, characterized in that, The detection method includes a temperature sensor determination step, which includes: Obtain the temperature difference between the first temperature sensor and the second temperature sensor; The difference is compared with a preset range; When the difference exceeds the preset range, it is determined that the first temperature sensor and the second temperature sensor are connected in reverse, and a temperature sensor reverse connection fault reminder message is issued. When the difference is within the preset range, it is determined that the first temperature sensor and the second temperature sensor are connected correctly.

2. The detection method according to claim 1, characterized in that, The step of obtaining the temperature difference between the first temperature sensor and the second temperature sensor includes: The temperature values ​​corresponding to the resistance values ​​of the first temperature sensor and the second temperature sensor are obtained respectively; The temperature values ​​of the first temperature sensor and the second temperature sensor are calculated to differentiate.

3. The method of claim 1, wherein, The detection method further includes: issuing a stop detection command based on the determination that the first temperature sensor and the second temperature sensor are connected in reverse, so as to perform connection adjustment operations on the first temperature sensor and the second temperature sensor.

4. The detection method according to claim 3, characterized in that, After adjusting the connection between the first temperature sensor and the second temperature sensor, the temperature sensor determination step is repeated.

5. The detection method according to any one of claims 1 to 4, characterized in that, The temperature sensor determination step is performed before the electrical equipment is turned on.

6. The detection method according to claim 5, characterized in that, Also includes: After determining that the first temperature sensor and the second temperature sensor are correctly connected, a power-on command is issued to power on the electrical equipment and perform the power-on detection step.

7. The detection method according to claim 6, characterized in that, The electrical equipment is an air conditioning system. In the start-up detection step, the operating frequency of the compressor of the air conditioning system is set to be lower than a predetermined frequency.

8. The detection method according to any one of claims 1-4, characterized in that, The electrical equipment is an air conditioning system. The first temperature sensor is located at the suction end of the compressor of the air conditioning system, and the second temperature sensor is located at the discharge end of the compressor; or, the second temperature sensor is located at the suction end of the compressor, and the first temperature sensor is located at the discharge end of the compressor.

9. A host computer configured to connect with an electric appliance, characterized in that, The host computer is configured to execute a detection program to implement the detection method according to any one of claims 1-8, so as to detect the electrical equipment.

10. A control device characterized by comprising: The control device includes a detection module, which is configured to execute a detection program to implement the detection method according to any one of claims 1-8.

11. An electrical appliance characterized by The device includes a first temperature sensor mounted at a first position and a second temperature sensor mounted at a second position, as well as a control device according to claim 10, wherein the first temperature sensor and the second temperature sensor are configured to correspond to different temperatures at the same resistance value.

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