Water state detection device, detection method, system, cooking equipment and medium

Abstract

The present invention provides a water state detection device, detection method, system, cooking equipment and medium, the device includes: a water tank table, an infrared transmitting end, a first receiving end and a second receiving end; a groove is provided on the water tank table; the transmitting end and the first receiving end are fixedly arranged on the inner wall of the groove and the distance between the transmitting end and the first receiving end is less than a preset spacing, and the second receiving end is opposite to the transmitting end and fixedly arranged on the inner wall of the groove; the water tank table is used to place the water tank of the cooking equipment through the groove; the first receiving end is used to receive the infrared rays emitted by the transmitting end and reflected back by the water tank, collect and output the first light energy data; the second receiving end is used to receive the infrared rays emitted by the transmitting end and refracted by the water tank, collect and output the second light energy data. The present invention can identify whether the water in the water tank is in a normal state, identify the specific abnormal state, the detection result is accurate, and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a water state detection device, a detection method, a system, a cooking device and a medium. Background Art

[0002] At present, water level detection mostly uses reed switches or electrodes. Affected by oil pollution in the water, reed switches have the problem of sticking to the container wall; electrode detection schemes are greatly affected by bubbles and water droplets, and there is a problem that the detection data deviates from the true value or even has data errors.

[0003] At the same time, since the water channel of the steamer is connected to the cooking cavity, the water in the tank is prone to deterioration after long-term storage. Currently, steamers and cooking utensils that use steam heating do not have water quality detection and water tank water change reminder functions. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of inaccurate results or missing means for detecting the water status (water level and water quality) in the water tank in the prior art, and to provide a water status detection device, detection method, system, cooking equipment and medium.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a water state detection device, comprising: a water tank platform, an infrared emitting end, a first receiving end and a second receiving end;

[0007] The water tank platform is provided with a groove;

[0008] The transmitting end and the first receiving end are fixedly arranged on the inner wall of the groove and the distance between the transmitting end and the first receiving end is less than a preset distance, and the second receiving end is opposite to the transmitting end and is fixedly arranged on the inner wall of the groove;

[0009] The water tank table is used to place the water tank of the cooking equipment through the groove;

[0010] The first receiving end is used to receive the infrared light emitted by the transmitting end and reflected back by the water tank, and collect and output first light energy data;

[0011] The second receiving end is used to receive the infrared rays emitted by the transmitting end and refracted by the water tank, and collect and output second light energy data.

[0012] Preferably, the detection device further comprises: a light-proof tubular housing;

[0013] The tubular housing is used to accommodate the transmitting end and the first receiving end;

[0014] The opening of the tubular housing faces the second receiving end, and the distance between the transmitting port of the transmitting end and the opening of the tubular housing is a preset distance.

[0015] Preferably, the detection device further comprises: a water tank detection micro switch;

[0016] The water tank detection micro switch is arranged at the bottom of the groove;

[0017] The water tank detection micro switch is used to generate and output a water tank in place signal; wherein, the water tank detection micro switch is in a closed state when the water tank is placed in the groove, and the water tank in place signal is used to indicate whether the water tank detection micro switch is in a closed state.

[0018] The present invention also provides a method for detecting water status, which is implemented using the aforementioned water status detection device, and comprises:

[0019] Acquire first light energy data collected by the first receiving end and second light energy data collected by the second receiving end;

[0020] Acquire first initial light energy data and second initial light energy data corresponding to an initial time point; wherein, at the initial time point, the water quality in the water tank is clean and the number of bubbles is less than a preset bubble threshold;

[0021] A water status detection result is generated based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data; wherein the water status detection result is used to indicate whether the water in the water tank is in a normal state.

[0022] Preferably, generating a water state detection result based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data comprises:

[0023] The water state detection result is generated according to a first light energy range in which the first light energy data is located and a second light energy range in which the second light energy data is located; wherein the first light energy range is determined by the first initial light energy data, and the second light energy range is determined by the second initial light energy data.

[0024] Preferably, the first light energy range includes: a first normal range;

[0025] The second light energy range includes: a second normal range;

[0026] The generating the water state detection result according to the first light energy range in which the first light energy data is located and the second light energy range in which the second light energy data is located comprises:

[0027] When the first light energy data is within the first normal range and the second light energy data is within the second normal range, the water state detection result indicates that the water in the water tank is in a normal state.

[0028] Preferably, the first light energy range also includes: a first poor water quality range and a first excessive water storage range;

[0029] The second light energy range also includes: a second water shortage range and a second abnormal range;

[0030] The generating the water state detection result according to the first light energy range in which the first light energy data is located and the second light energy range in which the second light energy data is located further includes:

[0031] When the second light energy data is within the second water shortage range, the water state detection result indicates that the water in the water tank is in a water shortage state;

[0032] When the first light energy data is within the first poor water quality range and the second light energy data is within the second abnormal range, the water state detection result indicates that the water in the water tank is in a poor water quality state;

[0033] When the first light energy data is within the first excessive water storage range and the second light energy data is within the second abnormal range, the water state detection result indicates that the water in the water tank is in an excessive water storage state.

[0034] Preferably, the detection method further comprises:

[0035] A water tank presence signal is obtained, and when the water tank presence signal indicates that the water tank detection micro switch is in a closed state, a water state detection is performed.

[0036] The present invention also provides a water state detection system, the detection system comprising: a light energy data acquisition module, an initial light energy data acquisition module and a detection result generation module;

[0037] The light energy data acquisition module is used to acquire first light energy data collected by the first receiving end and second light energy data collected by the second receiving end;

[0038] The initial light energy data acquisition module is used to acquire first initial light energy data and second initial light energy data corresponding to an initial time point; wherein, at the initial time point, the water quality in the water tank is clean and the number of bubbles is less than a preset bubble threshold;

[0039] The detection result generation module is used to generate a water status detection result based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data; wherein the water status detection result is used to indicate whether the water in the water tank is in a normal state.

[0040] Preferably, the detection result generation module is specifically used to generate the water state detection result based on the first light energy range in which the first light energy data is located and the second light energy range in which the second light energy data is located; wherein, the first light energy range is determined by the first initial light energy data, and the second light energy range is determined by the second initial light energy data.

[0041] Preferably, the first light energy range includes: a first normal range;

[0042] The second light energy range includes: a second normal range;

[0043] The detection result generation module includes: a normal state detection unit;

[0044] The normal state detection unit is used for generating the water state detection result indicating that the water in the water tank is in a normal state when the first light energy data is within the first normal range and the second light energy data is within the second normal range.

[0045] Preferably, the first light energy range also includes: a first poor water quality range and a first excessive water storage range;

[0046] The second light energy range also includes: a second water shortage range and a second abnormal range;

[0047] The detection result generation module also includes: a water shortage state detection unit, a poor water quality state detection unit and a water storage time too long state detection unit;

[0048] The water shortage state detection unit is used for generating the water state detection result indicating that the water in the water tank is in a water shortage state when the second light energy data is within the second water shortage range;

[0049] The poor water quality state detection unit is used for generating the water state detection result indicating that the water in the water tank is in a poor water quality state when the first light energy data is within the first poor water quality range and the second light energy data is within the second abnormal range;

[0050] The water storage time too long state detection unit is used to generate the water state detection result indicating that the water in the water tank is in the water storage time too long state when the first light energy data is within the first water storage time too long range and the second light energy data is within the second abnormal range.

[0051] Preferably, the detection system further comprises: an in-situ signal acquisition module;

[0052] The in-place signal acquisition module is used to acquire a water tank in-place signal, and to detect the water status when the water tank in-place signal indicates that the water tank detection micro switch is in a closed state.

[0053] The present invention also provides a cooking device, comprising the aforementioned water state detection device.

[0054] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the aforementioned water state detection method is implemented.

[0055] The positive and progressive effect of the present invention is that the first light energy data is collected by the first receiving end, and the second light energy data is collected by the second receiving end. Based on the first light energy data, the second light energy data and the first initial light energy data and the second initial light energy data corresponding to the initial time point, a water state detection result can be generated to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and then when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic structural diagram of a water state detection device according to Example 1 of the present invention.

[0057] Figure 2 This is a flow chart of a method for detecting water status according to Example 2 of the present invention.

[0058] Figure 3 This is a flowchart of a specific implementation of step S13 in the method for detecting water status in Example 2 of the present invention.

[0059] Figure 4 This is a flowchart of a specific implementation of step S131 in the water state detection method of Example 2 of the present invention.

[0060] Figure 5 This is a module schematic diagram of a water state detection system according to Example 3 of the present invention.

[0061] Figure 6 This is a module schematic diagram of a cooking device according to Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0062] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0063] Example 1

[0064] This embodiment provides a water state detection device, referring to Figure 1 The detection device includes: a water tank platform 1, an infrared transmitting end 2, a first receiving end 3 and a second receiving end 4.

[0065] The water tank platform 1 is provided with a groove.

[0066] The transmitting end 2 and the first receiving end 3 are fixed on the inner wall of the groove and the distance between the transmitting end 2 and the first receiving end 3 is less than the preset spacing. The second receiving end 4 is opposite to the transmitting end 2 and fixed on the inner wall of the groove.

[0067] The water tank table 1 is used for placing a water tank B of a cooking device A through a groove.

[0068] The first receiving end 3 is used to receive the infrared rays emitted by the transmitting end 2 and reflected back by the water tank B, and collect and output the first light energy data.

[0069] The second receiving end 4 is used to receive the infrared rays emitted by the transmitting end 2 and refracted by the water tank B, and collect and output the second light energy data.

[0070] The water tank B is made of a light-transmitting material, preferably a transparent material, so that the first receiving end 3 and the second receiving end 4 can receive the infrared light reflected by the transmitting end 2 .

[0071] The first light energy data and the second light energy data may be brightness data or light intensity data. Under different water conditions, the first light energy data and the second light energy data may change accordingly.

[0072] The detection device can be fixed to the bottom of the cooking device A by means of a support, rivets, bolts, screws, etc. In the figure, rivets 7 are used for fixing.

[0073] This embodiment collects first light energy data through a first receiving end, and collects second light energy data through a second receiving end, and can generate a water state detection result based on the first light energy data, the second light energy data and the reference light energy data to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and further, when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0074] In a specific implementation, the detection device further includes: a light-proof tubular housing 5 .

[0075] The tubular housing 5 is used to accommodate the transmitting end 2 and the first receiving end 3 .

[0076] The opening of the tubular housing 5 faces the second receiving end 4, and the distance between the transmitting port of the transmitting end 2 and the opening of the tubular housing 5 is a preset distance.

[0077] The light-proof tubular housing can reduce light leakage and prevent the leaked infrared light from being received by the first receiving end 3 and the second receiving end 4 through scattering, refraction, etc. via structural components, thereby ensuring the accuracy of the detection result.

[0078] Preferably, the tubular housing may be made of a black, light-proof material.

[0079] Among them, the black opaque material has the best light-shielding performance, and the black material also absorbs light.

[0080] During specific implementation, the detection device further includes: a water tank detection micro switch 6.

[0081] The water tank detection micro switch 6 is arranged at the bottom of the groove.

[0082] The water tank detection micro switch 6 is used to generate and output a water tank presence signal. The water tank detection micro switch 6 is in a closed state when the water tank B is placed in the groove, and the water tank presence signal is used to indicate whether the water tank detection micro switch 6 is in a closed state.

[0083] Among them, whether the water tank B is placed in the groove can be determined by the water tank detection micro switch 6.

[0084] Example 2

[0085] This embodiment provides a method for detecting water status. The detection method is implemented using the water status detection device in Embodiment 1. Figure 2 , detection methods include:

[0086] S11, acquiring first light energy data collected by the first receiving end and second light energy data collected by the second receiving end.

[0087] S12, obtaining first initial light energy data and second initial light energy data corresponding to an initial time point, wherein at the initial time point, the water in the water tank is clean and the number of bubbles is less than a preset bubble threshold.

[0088] S13, generating a water state detection result based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data, wherein the water state detection result is used to indicate whether the water in the water tank is in a normal state.

[0089] The initial time point refers to the time when the water tank to be tested is filled with (or preset water level) clean water for the first time. At the initial time point, the light energy data reflected or refracted by the water tank during the first use (i.e., the first initial light energy data and the second initial light energy data) is used as a reference for the normal state. By comparing the light energy data obtained by real-time detection with the reference, the actual state of the water in the water tank can be obtained in real time. At the same time, the use of the reference under the same installation environment for comparison and judgment can avoid measurement differences caused by different installation environments, thereby improving the accuracy of the test results.

[0090] The method of obtaining the first initial light energy data and the second initial light energy data is similar to the method of obtaining the first light energy data and the second light energy data, and will not be repeated here.

[0091] This embodiment collects first light energy data through a first receiving end, and collects second light energy data through a second receiving end, and can generate a water state detection result based on the first light energy data, the second light energy data, and the first initial light energy data and the second initial light energy data corresponding to the initial time point to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and further, when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0092] When implementing it, refer to Figure 3 , step S13 comprises:

[0093] S131, generating a water state detection result according to a first light energy range in which the first light energy data is located and a second light energy range in which the second light energy data is located, wherein the first light energy range is determined by the first initial light energy data, and the second light energy range is determined by the second initial light energy data.

[0094] The first light energy range and the second light energy range can be determined respectively by combining a plurality of correction coefficients with the first light energy data and the second light energy data. For example, the upper limit and the lower limit of the light energy range are determined by multiplying the correction coefficient and the light energy data.

[0095] The correction coefficient may be set according to actual needs so that the first light energy range and the second light energy range conform to actual conditions.

[0096] In this embodiment, the water status detection result is generated by the first light energy range within which the first light energy data falls and the second light energy range within which the second light energy data falls, so as to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and further, when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0097] During specific implementation, the first light energy range includes: a first normal range.

[0098] The second light energy range includes: a second normal range.

[0099] Reference Figure 4 , step S131 includes:

[0100] S1311. When the first light energy data is within a first normal range and the second light energy data is within a second normal range, the water state detection result indicates that the water in the water tank is in a normal state.

[0101] The first normal range and the second normal range can be determined respectively by combining a plurality of correction coefficients with the first light energy data and the second light energy data. For example, the upper limit and the lower limit of the normal range are determined by multiplying the correction coefficient and the light energy data.

[0102] The correction coefficient may be set according to actual needs so that the first normal range and the second normal range conform to actual conditions.

[0103] In this embodiment, the water status detection result is generated by the first normal range within which the first light energy data falls and the second normal range within which the second light energy data falls, so as to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0104] During specific implementation, the first light energy range also includes: a first poor water quality range and a first excessive water storage time range.

[0105] The second light energy range also includes: a second water-deficient range and a second abnormal range.

[0106] Reference Figure 4 , step S131 further includes:

[0107] S1312: When the second light energy data is within the second water shortage range, the water status detection result indicates that the water in the water tank is in a water shortage state.

[0108] S1313: When the first light energy data is within a first poor water quality range and the second light energy data is within a second abnormal range, the water state detection result indicates that the water in the water tank is in a poor water quality state.

[0109] S1314: When the first light energy data is within the first excessive water storage time range and the second light energy data is within the second abnormal range, the water state detection result indicates that the water in the water tank is in an excessive water storage time state.

[0110] Among them, the first water quality poor range, the first water storage too long range, the second water shortage range and the second abnormal range can be determined respectively by combining a number of correction coefficients with the first light energy data and the second light energy data. For example: the upper limit and lower limit of the above ranges are determined by multiplying the correction coefficient and the light energy data.

[0111] The correction coefficient can be set according to actual needs to make the first poor water quality range, the first excessive water storage range, the second water shortage range and the second abnormal range conform to the actual situation.

[0112] In this embodiment, the water status detection result is generated by using the specific abnormal range in the first light energy range within which the first light energy data falls and the specific abnormal range in the second light energy range within which the second light energy data falls, to identify whether the water in the water tank is in an abnormal state and identify the specific abnormal state. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0113] During specific implementation, the detection method further includes:

[0114] A water tank presence signal is obtained, and when the water tank presence signal indicates that the water tank detection micro switch is in a closed state, a water status detection is performed.

[0115] Among them, the water status detection is only required when the water tank is placed in the groove.

[0116] The following is an example of a water state detection control process performed by a cooking device using a water state detection device.

[0117] Assume that the cooking device is a steamer.

[0118] When the water tank in the steamer is filled with (or preset water level) clean water for the first use (i.e., the initial time point), the water tank detection microswitch in the water state detection device is closed. Before cooking starts, the placement status of the water tank is first detected. When the control system of the steamer inquires that the water tank detection microswitch is closed, the infrared transmitting end in the water state detection device is controlled to transmit infrared rays at a preset power. The first receiving end receives the infrared rays emitted by the transmitting end and reflected back by the water tank, collects and outputs the first initial light energy data Q to the control system. The second receiving end receives the infrared rays emitted by the transmitting end and refracted by the water tank, collects and outputs the second initial light energy data P to the control system. The first initial light energy data Q and the second initial light energy data P can be stored in independent data storage areas.

[0119] After recording the first initial light energy data Q and the second initial light energy data P, the cooking process can be started and the water state detection can be started. In the subsequent cooking process and when the steamer is used at other times, the recorded first initial light energy data Q and the second initial light energy data P are directly used as reference light energy data for detecting the water state.

[0120] When the micro switch is closed, the control system can control the steamer to cook. During the cooking process, the control system receives the first light energy data n sent by the first receiving end and the second light energy data m sent by the second receiving end in real time.

[0121] When 0.9*Q≤n≤1.1*Q (i.e., n is within the first normal range) and 0.8*P≤m≤P (i.e., m is within the second normal range), the energy transmitted by the second receiving end through the water tank body and the water transmission path inside the tank is consistent with the initial state of the system. Due to the influence of water hanging on the wall of the water tank, the signal value received by the second receiving end is slightly reduced. At the same time, the first receiving end receives the signal energy reflected and scattered by the water tank and the water inside the water tank, and the steamer cooks normally.

[0122] When m>P (that is, m is within the second water shortage range), the water tank is in a water shortage state, and cooking is stopped. Cooking is resumed after the user completes water replenishment.

[0123] When n<0.9*Q (i.e., n is within the first range of poor water quality) and m<0.8*P (i.e., m is within the second abnormal range), due to the deterioration of water quality, the transmittance decreases, and the energy transmitted by the second receiving end through the water tank body and the water transmission path inside the tank is reduced. At the same time, the energy of the reflected and scattered signals received by the first receiving end through the water tank and the water inside the water tank is reduced. The control system prompts that the water quality is poor and can output a water tank cleaning instruction through the human-computer interaction interface.

[0124] When n>1.1*Q (i.e., n is within the first range of excessive water storage) and m<0.8*P (i.e., m is within the second abnormal range), due to the long-term storage of water in the water tank, the gas dissolved in the water gathers at the concave and convex parts of the inner wall of the water tank. Under the action of temperature and buoyancy, the amount of air accumulated on the inner wall of the water tank gradually increases, and the light beam transmission reacts strongly at the position of the bubble membrane, resulting in the energy after reflection. The energy transmitted through the water tank body and the water transmission path inside the tank is reduced. At the same time, the energy of the signal reflected and scattered by the water tank, the water bubbles in the water tank, and the first receiving end increases. The control system prompts that the water in the water tank has been stored for too long, and the water tank water change prompt can be output through the human-computer interaction interface.

[0125] Example 3

[0126] This embodiment provides a water state detection system, referring to Figure 5 The detection system includes: a light energy data acquisition module 11, an initial light energy data acquisition module 12 and a detection result generation module 13.

[0127] The light energy data acquisition module 11 is used to acquire first light energy data collected by the first receiving end and second light energy data collected by the second receiving end.

[0128] The initial light energy data acquisition module 12 is used to acquire first initial light energy data and second initial light energy data corresponding to an initial time point, wherein at the initial time point, the water in the water tank is clean and the number of bubbles is less than a preset bubble threshold.

[0129] The detection result generating module 13 is used to generate a water state detection result based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data, wherein the water state detection result is used to indicate whether the water in the water tank is in a normal state.

[0130] The initial time point refers to the time when the water tank to be tested is filled with (or preset water level) clean water for the first time. At the initial time point, the light energy data reflected or refracted by the water tank during the first use (i.e., the first initial light energy data and the second initial light energy data) is used as a reference for the normal state. By comparing the light energy data obtained by real-time detection with the reference, the actual state of the water in the water tank can be obtained in real time. At the same time, the use of the reference under the same installation environment for comparison and judgment can avoid measurement differences caused by different installation environments, thereby improving the accuracy of the test results.

[0131] The method of obtaining the first initial light energy data and the second initial light energy data is similar to the method of obtaining the first light energy data and the second light energy data, and will not be repeated here.

[0132] This embodiment collects first light energy data through a first receiving end, and collects second light energy data through a second receiving end, and can generate a water state detection result based on the first light energy data, the second light energy data, and the first initial light energy data and the second initial light energy data corresponding to the initial time point to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and further, when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0133] In specific implementation, the detection result generating module 13 is specifically used to generate a water state detection result according to a first light energy range in which the first light energy data is located and a second light energy range in which the second light energy data is located. The first light energy range is determined by the first initial light energy data, and the second light energy range is determined by the second initial light energy data.

[0134] The first light energy range and the second light energy range can be determined respectively by combining a plurality of correction coefficients with the first light energy data and the second light energy data. For example, the upper limit and the lower limit of the light energy range are determined by multiplying the correction coefficient and the light energy data.

[0135] The correction coefficient may be set according to actual needs so that the first light energy range and the second light energy range conform to actual conditions.

[0136] In this embodiment, the water status detection result is generated by the first light energy range within which the first light energy data falls and the second light energy range within which the second light energy data falls, so as to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and further, when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0137] During specific implementation, the first light energy range includes: a first normal range.

[0138] The second light energy range includes: a second normal range.

[0139] The detection result generating module 13 includes: a normal state detecting unit 131 .

[0140] The normal state detection unit 131 is used to generate a water state detection result indicating that the water in the water tank is in a normal state when the first light energy data is within a first normal range and the second light energy data is within a second normal range.

[0141] The first normal range and the second normal range can be determined respectively by combining a plurality of correction coefficients with the first light energy data and the second light energy data. For example, the upper limit and the lower limit of the normal range are determined by multiplying the correction coefficient and the light energy data.

[0142] The correction coefficient may be set according to actual needs so that the first normal range and the second normal range conform to actual conditions.

[0143] In this embodiment, the water status detection result is generated by the first normal range within which the first light energy data falls and the second normal range within which the second light energy data falls, so as to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0144] During specific implementation, the first light energy range also includes: a first poor water quality range and a first excessive water storage time range.

[0145] The second light energy range also includes: a second water-deficient range and a second abnormal range.

[0146] The detection result generating module 13 further includes: a water shortage state detecting unit 132 , a poor water quality state detecting unit 133 and a too-long water storage time state detecting unit 134 .

[0147] The water shortage state detection unit 132 is used to generate a water state detection result indicating that the water in the water tank is in a water shortage state when the second light energy data is within a second water shortage range.

[0148] The poor water quality state detection unit 133 is used to generate a water state detection result indicating that the water in the water tank is in a poor water quality state when the first light energy data is within a first poor water quality range and the second light energy data is within a second abnormal range.

[0149] The water storage time too long state detection unit 134 is used to generate a water state detection result indicating that the water in the water tank is in a water storage time too long state when the first light energy data is within a first water storage time too long range and the second light energy data is within a second abnormal range.

[0150] Among them, the first water quality poor range, the first water storage too long range, the second water shortage range and the second abnormal range can be determined respectively by combining a number of correction coefficients with the first light energy data and the second light energy data. For example: the upper limit and lower limit of the above ranges are determined by multiplying the correction coefficient and the light energy data.

[0151] The correction coefficient can be set according to actual needs to make the first poor water quality range, the first excessive water storage range, the second water shortage range and the second abnormal range conform to the actual situation.

[0152] In this embodiment, the water status detection result is generated by using the specific abnormal range in the first light energy range within which the first light energy data falls and the specific abnormal range in the second light energy range within which the second light energy data falls, to identify whether the water in the water tank is in an abnormal state and identify the specific abnormal state. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0153] During specific implementation, the detection system further includes: a presence signal acquisition module 14 .

[0154] The in-place signal acquisition module 14 is used to acquire a water tank in-place signal, and to detect the water status when the water tank in-place signal indicates that the water tank detection micro switch is in a closed state.

[0155] Among them, the water status detection is only required when the water tank is placed in the groove.

[0156] The following is an example of a water state detection control process performed by a cooking device using a water state detection device.

[0157] Assume that the cooking device is a steamer.

[0158] When the water tank in the steamer is filled with (or preset water level) clean water for the first use (i.e., the initial time point), the water tank detection microswitch in the water state detection device is closed. Before cooking starts, the placement status of the water tank is first detected. When the control system of the steamer inquires that the water tank detection microswitch is closed, the infrared transmitting end in the water state detection device is controlled to transmit infrared rays at a preset power. The first receiving end receives the infrared rays emitted by the transmitting end and reflected back by the water tank, collects and outputs the first initial light energy data Q to the control system. The second receiving end receives the infrared rays emitted by the transmitting end and refracted by the water tank, collects and outputs the second initial light energy data P to the control system. The first initial light energy data Q and the second initial light energy data P can be stored in independent data storage areas.

[0159] After recording the first initial light energy data Q and the second initial light energy data P, the cooking process can be started and the water state detection can be started. In the subsequent cooking process and when the steamer is used at other times, the recorded first initial light energy data Q and the second initial light energy data P are directly used as reference light energy data for detecting the water state.

[0160] When the micro switch is closed, the control system can control the steamer to cook. During the cooking process, the control system receives the first light energy data n sent by the first receiving end and the second light energy data m sent by the second receiving end in real time.

[0161] When 0.9*Q≤n≤1.1*Q (i.e., n is within the first normal range) and 0.8*P≤m≤P (i.e., m is within the second normal range), the energy transmitted by the second receiving end through the water tank body and the water transmission path inside the tank is consistent with the initial state of the system. Due to the influence of water hanging on the wall of the water tank, the signal value received by the second receiving end is slightly reduced. At the same time, the first receiving end receives the signal energy reflected and scattered by the water tank and the water inside the water tank, and the steamer cooks normally.

[0162] When m>P (that is, m is within the second water shortage range), the water tank is in a water shortage state, and cooking is stopped. Cooking is resumed after the user completes water replenishment.

[0163] When n<0.9*Q (i.e., n is within the first range of poor water quality) and m<0.8*P (i.e., m is within the second abnormal range), due to the deterioration of water quality, the transmittance decreases, and the energy transmitted by the second receiving end through the water tank body and the water transmission path inside the tank is reduced. At the same time, the energy of the reflected and scattered signals received by the first receiving end through the water tank and the water inside the water tank is reduced. The control system prompts that the water quality is poor and can output a water tank cleaning instruction through the human-computer interaction interface.

[0164] When n>1.1*Q (i.e., n is within the first range of excessive water storage) and m<0.8*P (i.e., m is within the second abnormal range), due to the long-term storage of water in the water tank, the gas dissolved in the water gathers at the concave and convex parts of the inner wall of the water tank. Under the action of temperature and buoyancy, the amount of air accumulated on the inner wall of the water tank gradually increases, and the light beam transmission reacts strongly at the position of the bubble membrane, resulting in the energy after reflection. The energy transmitted through the water tank body and the water transmission path inside the tank is reduced. At the same time, the energy of the signal reflected and scattered by the water tank, the water bubbles in the water tank, and the first receiving end increases. The control system prompts that the water in the water tank has been stored for too long, and the water tank water change prompt can be output through the human-computer interaction interface.

[0165] Example 4

[0166] This embodiment provides a cooking device, referring to Figure 6 The cooking device includes the water state detection device in Example 1.

[0167] The cooking device further comprises a main controller 41, which is electrically connected to the infrared emitting end 2, the first receiving end 3 and the second receiving end 4 in the detection device respectively.

[0168] This embodiment collects first light energy data through a first receiving end, and collects second light energy data through a second receiving end, and can generate a water state detection result based on the first light energy data, the second light energy data, and the first initial light energy data and the second initial light energy data corresponding to the initial time point to identify whether the water in the water tank is in a normal state. When the water in the water tank is in a normal state, there is no need to process the water in the water tank, and further, when the water in the water tank is in an abnormal state, the specific abnormal state can be identified. The detection result is accurate and is not affected by oil, bubbles and water droplets in the water, thereby improving the user experience.

[0169] Example 5

[0170] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the method for detecting the water state in Embodiment 2 is implemented.

[0171] The readable storage medium may include but is not limited to: a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device or any suitable combination of the above.

[0172] In a possible implementation manner, the present invention can also be implemented in the form of a program product, which includes a program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the water status detection method in Example 2.

[0173] The program code for executing the present invention may be written in any combination of one or more programming languages, and may be executed entirely on a user device, partially on a user device, as an independent software package, partially on a user device and partially on a remote device, or entirely on a remote device.

[0174] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A water state detection device, characterized in that: include: A water tank platform, an infrared emitting end, a first receiving end, and a second receiving end; The water tank platform is provided with a groove; The transmitting end and the first receiving end are fixedly arranged on the inner wall of the groove and the distance between the transmitting end and the first receiving end is less than a preset spacing, and the second receiving end is opposite to the transmitting end and is fixedly arranged on the inner wall of the groove; The water tank table is used to place the water tank of the cooking equipment through the groove; The first receiving end is used to receive the infrared light emitted by the transmitting end and reflected back by the water tank, and collect and output first light energy data; The second receiving end is used to receive the infrared rays emitted by the transmitting end and refracted by the water tank, and collect and output second light energy data; The detection device further comprises: a light-proof tubular housing; The tubular housing is used to accommodate the transmitting end and the first receiving end; The opening of the tubular housing faces the second receiving end, and the distance between the transmitting port of the transmitting end and the opening of the tubular housing is a preset distance; The detection device also includes: a water tank detection micro switch; The water tank detection micro switch is arranged at the bottom of the groove; The water tank detection micro switch is used to generate and output a water tank in place signal; wherein, the water tank detection micro switch is in a closed state when the water tank is placed in the groove, and the water tank in place signal is used to indicate whether the water tank detection micro switch is in a closed state.

2. A method for detecting water status, characterized in that: The detection method is implemented using the water state detection device as claimed in claim 1, and the detection method comprises: Acquire first light energy data collected by the first receiving end and second light energy data collected by the second receiving end; Acquire first initial light energy data and second initial light energy data corresponding to an initial time point; wherein, at the initial time point, the water quality in the water tank is clean and the number of bubbles is less than a preset bubble threshold; A water status detection result is generated based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data; wherein the water status detection result is used to indicate whether the water in the water tank is in a normal state.

3. The method for detecting water status according to claim 2, characterized in that: The generating a water state detection result based on the first light energy data, the second light energy data, the first initial light energy data and the second initial light energy data comprises: The water state detection result is generated according to a first light energy range in which the first light energy data is located and a second light energy range in which the second light energy data is located; wherein the first light energy range is determined by the first initial light energy data, and the second light energy range is determined by the second initial light energy data.

4. The method for detecting water status according to claim 3, characterized in that: The first light energy range includes: a first normal range; The second light energy range includes: a second normal range; The generating the water state detection result according to the first light energy range in which the first light energy data is located and the second light energy range in which the second light energy data is located comprises: When the first light energy data is within the first normal range and the second light energy data is within the second normal range, the water state detection result indicates that the water in the water tank is in a normal state.

5. The method for detecting water status according to claim 4, characterized in that: The first light energy range also includes: a first poor water quality range and a first excessive water storage range; The second light energy range also includes: a second water shortage range and a second abnormal range; The generating the water state detection result according to the first light energy range in which the first light energy data is located and the second light energy range in which the second light energy data is located further includes: When the second light energy data is within the second water shortage range, the water state detection result indicates that the water in the water tank is in a water shortage state; When the first light energy data is within the first poor water quality range and the second light energy data is within the second abnormal range, the water state detection result indicates that the water in the water tank is in a poor water quality state; When the first light energy data is within the first excessive water storage range and the second light energy data is within the second abnormal range, the water state detection result indicates that the water in the water tank is in an excessive water storage state.

6. The method for detecting water status according to claim 2, characterized in that: The detection method further comprises: A water tank presence signal is obtained, and when the water tank presence signal indicates that the water tank detection micro switch is in a closed state, a water state detection is performed.

7. A cooking device, characterized in that: The invention comprises a water state detection device as claimed in claim 1.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for detecting the water state according to any one of claims 2 to 6 is implemented.

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