Wine cabinet temperature detection control method, control system and wine cabinet

Abstract

The present invention provides a wine cabinet temperature detection control method, control system and wine cabinet with multiple data channels. The control method includes arranging a first NTC probe and a second NTC probe in the wine cabinet to respectively detect the temperature in the wine cabinet, comparing the detected temperature with a preset threshold temperature, and directly issuing an alarm instruction if the preset threshold temperature is exceeded, otherwise transmitting a first temperature signal detected by the first NTC probe to a controller, and transmitting a second temperature signal detected by the second NTC probe to the controller; the controller comprehensively compares the first temperature signal and the second temperature signal, and issues an alarm instruction when the difference between the first temperature signal and the second temperature signal exceeds 3°C. The present invention uses two NTC probes for mutual verification, which can solve the problem of inaccurate temperature control caused by failure of the NTC probe or inaccurate sensing of temperature.

Description

Technical Field

[0001] The invention belongs to the technical field of wine cabinet temperature control, and in particular relates to a wine cabinet temperature detection control method with multiple data channels, a control system and a wine cabinet. Background Art

[0002] The optimal storage temperature for wine is: dry white wine 8-10℃, semi-dry white wine 8-12℃, semi-sweet / sweet wine 10-12℃, dry red wine 12-15℃, semi-dry red wine 16-18℃, semi-sweet / sweet wine 14-16℃, brandy 5-15℃, sparkling wine (i.e. champagne) 5-10℃.

[0003] The wine cabinets currently on the market are equipped with temperature detectors in the refrigeration temperature zone to detect the real-time temperature of the refrigeration temperature zone and feed the temperature back to the host to control the refrigeration process. The current temperature detection has the following problems:

[0004] 1) When the temperature detector fails, the temperature fed back to the control system is not the actual temperature inside the cabinet, which will cause the temperature inside the cabinet to not be controlled within the user's set temperature range, which does not meet the wine storage requirements;

[0005] 2) When there is foreign matter covering or the temperature detector falls off due to abnormal operation, the sensed temperature may not be the real temperature inside the cabinet. The temperature inside the cabinet may not be controlled within the user's set temperature range, resulting in poor preservation effect.

[0006] 3) When the temperature detector has a minor fault and the temperature inside the cabinet is not too different from the temperature set by the user, the user cannot perceive that the wine cabinet has a fault, causing the red wine to be stored in the wrong temperature environment and damaged, affecting the taste of the red wine.

[0007] Based on this, the present application provides a wine cabinet temperature detection control method, control system and wine cabinet with multiple data channels to solve the above-mentioned defects. Summary of the invention

[0008] In view of the defects of the prior art, the present invention provides a wine cabinet temperature detection control method, a control system and a wine cabinet with multiple data channels. Two NTC probes are used for mutual verification, which can solve the problem of inaccurate temperature control caused by failure of the NTC probe or inaccurate sensing temperature.

[0009] The first object of the present invention is to provide a wine cabinet temperature detection and control method with multiple data channels, which comprises the following steps:

[0010] (1) A first NTC probe is set in the wine cabinet, and the temperature in the wine cabinet is detected by the first NTC probe and compared with a preset threshold temperature:

[0011] If the temperature exceeds the preset threshold, an alarm command will be issued directly;

[0012] If the preset threshold temperature is not exceeded, transmitting the first temperature signal detected by the first NTC probe to the controller;

[0013] (2) A second NTC probe is provided in the wine cabinet, and the temperature in the wine cabinet is detected by the second NTC probe and compared with a preset threshold temperature:

[0014] If the temperature exceeds the preset threshold, an alarm command will be issued directly;

[0015] If the preset threshold temperature is not exceeded, transmitting the second temperature signal detected by the second NTC probe to the controller;

[0016] The second NTC probe is adjacent to the first NTC probe;

[0017] (3) The controller comprehensively compares the first temperature signal and the second temperature signal, and issues an alarm command when the difference between the first temperature signal and the second temperature signal exceeds 3°C.

[0018] According to another specific embodiment of the present invention, in step (3), when the difference between the first temperature signal and the second temperature signal is less than 3°C, the detection sensitivity of the second NTC probe is corrected according to the first temperature signal, and the difference between the first temperature signal and the second temperature signal is controlled within a preset temperature range.

[0019] According to another specific embodiment of the present invention, the preset temperature range is within 1°C.

[0020] According to another specific embodiment of the present invention, the method further comprises: (4) the controller comprehensively compares a first difference between the first temperature signal and a preset temperature signal in the wine cabinet, and a second difference between the second temperature signal and the preset signal in the wine cabinet:

[0021] When the first difference is less than the second difference, it is determined that the second NTC probe is faulty;

[0022] When the first difference is greater than the second difference, it is determined that the first NTC probe is faulty.

[0023] According to another specific embodiment of the present invention, it also includes:

[0024] (5) A third NTC probe is provided at the evaporator in the wine cabinet. During the defrost cycle, the temperature of the evaporator is detected by the third NTC probe. When the temperature detected by the third NTC probe exceeds the preset fan start-up threshold temperature, the defrost is terminated and the next refrigeration cycle is started by the controller.

[0025] According to another specific embodiment of the present invention, a sound alarm capable of receiving an alarm instruction is provided on the wine cabinet, and the sound alarm is, for example, a buzzer.

[0026] The second object of the present invention is to provide a wine cabinet temperature detection and control system with multiple data channels, which comprises:

[0027] A first temperature detection module, used to detect the temperature in the wine cabinet;

[0028] The second temperature detection module is used to detect the temperature in the wine cabinet;

[0029] A control module for setting a threshold temperature and issuing an alarm command;

[0030] A comparison module, configured to compare the temperatures detected by the first temperature detection module and the second temperature detection module with a threshold temperature set by the control module;

[0031] The control module also includes:

[0032] an acquisition module, used for acquiring a first temperature signal of the first temperature detection module when the temperature detected by the first temperature detection module is within a set threshold temperature range, and for acquiring a second temperature signal of the second temperature detection module when the temperature detected by the second temperature detection module is within a set threshold temperature range;

[0033] The control module comprehensively compares the first temperature signal and the second temperature signal and issues an alarm instruction when the difference between the first temperature signal and the second temperature signal exceeds 3°C.

[0034] According to another specific embodiment of the present invention, the control module further includes:

[0035] The correction module is used to correct the detection sensitivity of the second NTC probe according to the first temperature signal when the difference between the first temperature signal and the second temperature signal is less than 3°C, so as to control the difference between the first temperature signal and the second temperature signal within a preset temperature range.

[0036] According to another specific embodiment of the present invention, the control module further includes:

[0037] The fault analysis module is used to obtain a first difference between the first temperature signal and a preset temperature signal in the wine cabinet, a second difference between the second temperature signal and the preset signal in the wine cabinet, and determine:

[0038] When the first difference is less than the second difference, it is determined that the second detection module is faulty;

[0039] When the first difference is greater than the second difference, it is determined that the first detection module is faulty.

[0040] The third object of the present invention is to provide a wine cabinet, which includes the aforementioned wine cabinet temperature detection and control system with multiple data channels.

[0041] The present invention has the following beneficial effects:

[0042] The present invention can effectively solve the problem of inaccurate temperature control caused by failure of the NTC probe or inaccurate sensing temperature by mutual calibration of the first NTC probe and the second NTC probe, and has the advantages of high temperature control accuracy and good preservation effect.

[0043] The present invention can correct the NTC probe and perform fault detection on the NTC probe while maintaining accurate temperature measurement. If the corrected NTC probe fails again, it indicates that the NTC probe is faulty and needs to be repaired.

[0044] The present invention adopts the third NTC probe to perform temperature detection in the defrost cycle to ensure that the fan is not turned on before the defrost cycle is completed, so as to ensure that all ice on the surface melts before the subsequent refrigeration cycle is carried out.

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a flow chart of the wine cabinet temperature detection and control method of the present invention;

[0047] Figure 2 is a flow chart of the wine cabinet temperature detection and control method of the present invention;

[0048] Figure 3 It is a framework diagram of the wine cabinet temperature detection and control system of the present invention. DETAILED DESCRIPTION

[0049] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0051] Example 1

[0052] This embodiment provides a wine cabinet temperature detection and control method with multiple data channels, such as Figure 1 , 2 As shown, the control method includes:

[0053] Step (1): a first NTC probe is set in the wine cabinet, the temperature in the wine cabinet is detected by the first NTC probe and the temperature is compared with a preset threshold temperature:

[0054] If the temperature exceeds the preset threshold, an alarm command will be issued directly;

[0055] If the preset threshold temperature is not exceeded, transmitting the first temperature signal detected by the first NTC probe to the controller;

[0056] (2) A second NTC probe is provided in the wine cabinet, and the temperature in the wine cabinet is detected by the second NTC probe and compared with a preset threshold temperature:

[0057] If the temperature exceeds the preset threshold, an alarm command will be issued directly;

[0058] If the preset threshold temperature is not exceeded, transmitting the second temperature signal detected by the second NTC probe to the controller;

[0059] The second NTC probe is adjacent to the first NTC probe;

[0060] For example, the normal temperature of a wine cabinet is between 5°C and 18°C, the lower limit of the preset threshold temperature is 0°C, and the upper limit of the preset threshold temperature is 25°C. If the temperature detected by the first NTC probe / the second NTC probe exceeds the interval range of 0°C-25°C, an alarm is directly issued. The alarm here may be caused by a refrigeration failure in the wine cabinet on the one hand, or by a failure of the first NTC probe and / or the second NTC probe on the other hand, requiring maintenance personnel to perform maintenance; if the temperature detected by the first NTC probe / the second NTC probe is in the interval range of 0°C-25°C, the first temperature signal / the second temperature signal detected by the first NTC probe / the second NTC probe is transmitted to the controller.

[0061] (3) The controller comprehensively compares the first temperature signal and the second temperature signal, and issues an alarm command when the difference between the first temperature signal and the second temperature signal exceeds 3°C.

[0062] For example, the preset temperature signal of the wine cabinet (which can be adjusted by controlling the bread to provide different preservation temperatures) is 8°C, the first temperature signal is 8°C, and the second temperature signal is 12°C. The difference between the two is 4°C, which exceeds 3°C. At this time, an alarm signal is issued and the first NTC probe and / or the second NTC probe need to be repaired.

[0063] Specifically, it can be determined whether the first temperature signal or the second temperature signal is faulty based on the deviation values ​​of the first temperature signal and the second temperature signal compared with the preset temperature signal.

[0064] Wherein in step (3), when the difference between the first temperature signal and the second temperature signal is less than 3° C., the detection sensitivity of the second NTC probe is corrected according to the first temperature signal, and the difference between the first temperature signal and the second temperature signal is controlled within a preset temperature range;

[0065] Here, it is assumed by default that the first temperature signal is closer to the preset temperature signal.

[0066] The preset temperature range is preferably within 1°C.

[0067] For example, the preset temperature signal of the wine cabinet is 8°C, the first temperature signal is 8°C, and the second temperature signal is 10°C. The difference between the two is 2°C, which does not exceed 3°C. In this case, no alarm signal is issued. The detection sensitivity of the second NTC probe is corrected according to the feedback value of the first temperature signal. The detection temperature value of the second NTC probe is adjusted between 7°C and 9°C, preferably to 8°C.

[0068] After the correction is completed, multiple cycles of detection are performed again. If the detection temperature of the second NTC probe after correction changes significantly compared to the detection temperature of the first NTC probe, an alarm command is issued and a fault detection is performed on the second NTC probe.

[0069] (4) The controller comprehensively compares a first difference between the first temperature signal and a preset temperature signal in the wine cabinet, and a second difference between the second temperature signal and the preset signal in the wine cabinet:

[0070] When the first difference is less than the second difference, it is determined that the second NTC probe is faulty;

[0071] When the first difference is greater than the second difference, it is determined that the first NTC probe is faulty.

[0072] The above fault analysis for the first NTC probe and the second NTC probe is applicable to step (2) and step (3). When an alarm instruction is issued in step (2), analysis and judgment are performed according to step (4) to determine the fault object.

[0073] When the alarm signal still appears after step (3) is corrected, analysis and judgment are performed according to step (4) to determine the fault object, as shown below:

[0074] For example, the preset temperature signal of the wine cabinet is 8°C, the first temperature signal is 8°C, and the second temperature signal is 10°C. The difference between the two is 2°C, which does not exceed 3°C. In this case, no alarm signal is issued. The detection sensitivity of the second NTC probe is corrected according to the feedback value of the first temperature signal, and the detection temperature value of the NTC probe is adjusted to 8°C.

[0075] In the subsequent multiple detection cycles, the first temperature signal remained basically unchanged and remained at 8°C. However, the second temperature signal gradually increased to 9°C. After correction again, the second temperature signal still had an increasing trend, that is, the first difference and the second difference were still different. At this time, it can be determined that the second NTC probe is faulty and needs to be repaired.

[0076] This embodiment also provides steps for ensuring complete defrosting during the defrosting cycle:

[0077] (5) A third NTC probe is provided at the evaporator in the wine cabinet. During the defrost cycle, the temperature of the evaporator is detected by the third NTC probe. When the temperature detected by the third NTC probe exceeds the preset fan start-up threshold temperature, the defrost is terminated and the next refrigeration cycle is started by the controller.

[0078] The setting of the third NTC probe can ensure that the fan is not turned on before the defrost cycle is completed, ensuring that all ice on the surface melts before the subsequent refrigeration cycle is carried out, thereby increasing the service life of the evaporator.

[0079] In this embodiment, a sound alarm capable of receiving an alarm command is provided on the wine cabinet. The sound alarm is, for example, a buzzer. After receiving the alarm command, it sounds an alarm by emitting a warning sound and can also display a fault on the control panel.

[0080] Example 2

[0081] This embodiment provides a wine cabinet temperature detection and control system with multiple data channels, such as Figure 3 As shown, it includes a first temperature detection module, a second temperature detection module, a third temperature detection module, a control module and a comparison module.

[0082] The first temperature detection module is disposed in the wine cabinet and is used to detect the temperature in the wine cabinet. For example, the first temperature detection module is a first NTC probe.

[0083] The second temperature detection module is arranged in the wine cabinet to detect the temperature in the wine cabinet, and the second temperature detection module is adjacent to the first temperature detection module to eliminate the influence caused by slight temperature differences at different positions. For example, the second temperature detection module is a second NTC probe.

[0084] The control module is used to set the threshold temperature and issue an alarm command;

[0085] The comparison module is used to compare the temperature detected by the first temperature detection module and the second temperature detection module with the threshold temperature set by the control module;

[0086] The control module also includes an acquisition module, a correction module and a fault analysis module;

[0087] The acquisition module is used to acquire the first temperature signal of the first temperature detection module when the temperature detected by the first temperature detection module is within the set threshold temperature range, and is used to acquire the second temperature signal of the second temperature detection module when the temperature detected by the second temperature detection module is within the set threshold temperature range. After receiving the first temperature signal and the second temperature signal, the control module comprehensively compares the first temperature signal and the second temperature signal and issues an alarm instruction when the difference between the first temperature signal and the second temperature signal exceeds 3°C.

[0088] The correction module is used to correct the detection sensitivity of the second NTC probe according to the first temperature signal when the difference between the first temperature signal and the second temperature signal is less than 3°C, so as to control the difference between the first temperature signal and the second temperature signal within a preset temperature range.

[0089] The fault analysis module is used to obtain a first difference between the first temperature signal and a preset temperature signal in the wine cabinet, and a second difference between the second temperature signal and the preset signal in the wine cabinet, and determine:

[0090] When the first difference is less than the second difference, it is determined that the second detection module is faulty;

[0091] When the first difference is greater than the second difference, it is determined that the first detection module is faulty.

[0092] The third temperature detection module is arranged at the evaporator of the wine cabinet, for example, the third temperature detection module is a third NTC probe, which is connected to the control module;

[0093] During the defrost cycle, the temperature of the evaporator is detected by the third temperature detection module and when the detected temperature of the third temperature detection module exceeds the preset fan start-up threshold temperature, the defrost is completed, and the next refrigeration cycle is started through the controller to ensure that the fan is not turned on before the defrost cycle is completed, to ensure that the subsequent refrigeration cycle is carried out after all the ice on the surface has melted, thereby increasing the service life of the evaporator.

[0094] A wine cabinet using the temperature detection and control system of this embodiment is:

[0095] The first temperature detection module and the second temperature detection module are arranged adjacent to each other in the refrigerating chamber of the wine cabinet, and the third temperature detection module is arranged at the evaporator of the wine cabinet.

[0096] The normal temperature in the refrigerator is set between 5°C and 18°C ​​through the control module, the lower limit of the preset threshold temperature is set to 0°C, the upper limit of the preset threshold temperature is set to 25°C, and the preset temperature signal for refrigeration in the refrigerator is set to 8°C.

[0097] The temperature of the refrigerating chamber is detected by a first temperature detection module and a second temperature detection module respectively;

[0098] If the temperature detected by the first temperature detection module / the second temperature detection module exceeds the range of 0°C-25°C, an alarm is directly issued through the control module;

[0099] If the temperature detected by the first temperature detection module / the second temperature detection module is in the range of 0°C-25°C, the first temperature signal / the second temperature signal detected by the first temperature detection module / the second temperature detection module is transmitted to the control module through the acquisition module.

[0100] After receiving the first temperature signal and the second temperature signal, the control module comprehensively compares the first temperature signal and the second temperature signal:

[0101] If the difference between the first temperature signal and the second temperature signal exceeds 3°C, an alarm command is issued;

[0102] For example, if the first temperature signal is 8°C and the second temperature signal is 12°C, the difference between the two is 4°C, which exceeds 3°C. Then an alarm signal is issued and the first temperature detection module / the second temperature detection module needs to be repaired.

[0103] At the same time, through the analysis of the fault analysis module, the first difference between the first temperature signal and the preset temperature signal is 0°C, and the second difference between the second temperature signal and the preset temperature signal is 4°C, then the fault analysis module can determine that the second temperature detection module is faulty;

[0104] If the difference between the first temperature signal and the second temperature signal does not exceed 3°C, continue cooling; at this time, if the first temperature signal is different from the second temperature signal, for example, the first temperature signal is 8°C, the second temperature signal is 10°C, and the difference between the two is 2°C, which does not exceed 3°C. At this time, no alarm signal is issued, and the detection sensitivity of the second temperature detection module is corrected according to the feedback value of the first temperature signal through the correction module, and the detection sensitivity of the second temperature detection module is adjusted. It is best to adjust it to 8°C. If in the subsequent multiple detection cycles, the first temperature signal has basically not changed and is still 8°C, but the second temperature signal gradually increases to 9°C, and after correction again, the second temperature signal still has an increasing trend, then the fault analysis module can determine that the second NTC probe is faulty and needs to be repaired.

[0105] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some improvements without departing from the scope of the present invention, that is, all equivalent improvements made according to the present invention should be covered by the scope of the present invention.

Claims

1. A wine cabinet temperature detection and control method with multiple data channels, comprising the following steps: (1) A first NTC probe is set in the wine cabinet, and the temperature in the wine cabinet is detected by the first NTC probe and compared with a preset threshold temperature: If the temperature exceeds the preset threshold, an alarm command will be issued directly; If the preset threshold temperature is not exceeded, transmitting the first temperature signal detected by the first NTC probe to the controller; (2) A second NTC probe is provided in the wine cabinet, and the temperature in the wine cabinet is detected by the second NTC probe and compared with a preset threshold temperature: If the temperature exceeds the preset threshold, an alarm command will be issued directly; If the preset threshold temperature is not exceeded, transmitting the second temperature signal detected by the second NTC probe to the controller; The second NTC probe is adjacent to the first NTC probe; (3) The controller comprehensively compares the first temperature signal and the second temperature signal, and issues an alarm command when the difference between the first temperature signal and the second temperature signal exceeds 3°C; wherein, when the difference between the first temperature signal and the second temperature signal is less than 3°C, the detection sensitivity of the second NTC probe is corrected according to the first temperature signal, and the difference between the first temperature signal and the second temperature signal is controlled within a preset temperature range; after the correction is completed, multiple cycles of detection are performed again, and if the detection temperature of the second NTC probe after correction changes significantly compared with the detection temperature of the first NTC probe, an alarm command is issued to perform fault detection on the second NTC probe; (4) The controller comprehensively compares a first difference between the first temperature signal and a preset temperature signal in the wine cabinet, and a second difference between the second temperature signal and the preset signal in the wine cabinet: When the first difference is less than the second difference, it is determined that the second NTC probe is faulty; When the first difference is greater than the second difference, it is determined that the first NTC probe is faulty.

2. The wine cabinet temperature detection and control method with multiple data channels as claimed in claim 1, characterized in that: The preset temperature range is within 1°C.

3. The wine cabinet temperature detection and control method with multiple data channels as claimed in claim 1, characterized in that: Also includes: (5) A third NTC probe is provided at the evaporator in the wine cabinet. During the defrost cycle, the temperature of the evaporator is detected by the third NTC probe. When the temperature detected by the third NTC probe exceeds the preset fan start-up threshold temperature, the defrost is terminated and the next refrigeration cycle is started by the controller.

4. The wine cabinet temperature detection and control method with multiple data channels as claimed in claim 1, characterized in that: A sound alarm capable of receiving an alarm command is arranged on the wine cabinet.

5. A wine cabinet temperature detection and control system with multiple data channels, comprising: A first temperature detection module, used to detect the temperature in the wine cabinet; The second temperature detection module is used to detect the temperature in the wine cabinet; A control module for setting a threshold temperature and issuing an alarm command; a comparison module, configured to compare the temperatures detected by the first temperature detection module and the second temperature detection module with a threshold temperature set by the control module; The control module further comprises: an acquisition module, used for acquiring a first temperature signal of the first temperature detection module when the temperature detected by the first temperature detection module is within a set threshold temperature range, and for acquiring a second temperature signal of the second temperature detection module when the temperature detected by the second temperature detection module is within a set threshold temperature range; The control module comprehensively compares the first temperature signal and the second temperature signal and issues an alarm instruction when the difference between the first temperature signal and the second temperature signal exceeds 3°C; the control module further includes a correction module, which is used to correct the detection sensitivity of the second NTC probe according to the first temperature signal when the difference between the first temperature signal and the second temperature signal is less than 3°C, so as to control the difference between the first temperature signal and the second temperature signal within a preset temperature range; wherein, after the correction is completed, multiple cycles of detection are performed again, and if the detection temperature of the second NTC probe after correction changes significantly compared with the detection temperature of the first NTC probe, an alarm instruction is issued to perform fault detection on the second NTC probe; The fault analysis module is used to obtain a first difference between the first temperature signal and a preset temperature signal in the wine cabinet, a second difference between the second temperature signal and the preset signal in the wine cabinet, and determine: When the first difference is less than the second difference, it is determined that the second detection module is faulty; When the first difference is greater than the second difference, it is determined that the first detection module is faulty.

6. A wine cabinet, comprising the wine cabinet temperature detection and control system with multiple data channels as claimed in claim 5.

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