Target material detection method and device, storage medium and electronic device

Abstract

The application discloses a target material detection method and device, a storage medium and an electronic device, and relates to the technical field of smart homes. The target material detection method comprises the following steps: acquiring a first running parameter of an air conditioning device and a first environment parameter of an environment in which the air conditioning device is located within a first preset time period; determining a first change amount of the first running parameter within the first preset time period, and determining a second change amount of the first environment parameter within the first preset time period; and determining whether the first change amount and the second change amount satisfy a first preset condition, so as to determine whether the content of a target material in the air conditioning device is lower than a first preset threshold value, wherein the first preset condition is a condition corresponding to a current running mode of the air conditioning device.

Description

Technical Field

[0001] This application relates to the field of smart home technology, and more specifically, to a method and apparatus for detecting target materials, a storage medium, and an electronic device. Background Technology

[0002] Over time, air conditioning units may experience refrigerant leaks due to vibrations and other factors. As the refrigerant decreases, the air conditioner's cooling and heating efficiency declines, affecting normal use. However, users typically cannot detect whether this decline is due to refrigerant loss; they must call for repairs and wait for a technician to inspect the unit, a time-consuming process that results in a poor user experience.

[0003] There is currently no effective solution to the problems in existing technologies, such as users being unable to detect whether a decrease in the cooling or heating effect of an air conditioner is caused by a lack of refrigerant, requiring a repair request to determine the cause, resulting in a poor user experience. Summary of the Invention

[0004] This invention provides a method and apparatus for detecting target materials, a storage medium, and an electronic device, to at least solve the problem in the prior art where users cannot detect whether a decrease in the cooling or heating effect of an air conditioner is caused by a lack of refrigerant, and can only determine this after reporting a repair, resulting in a poor user experience.

[0005] According to one embodiment of the present invention, a method for detecting a target material is provided, comprising: acquiring a first operating parameter of an air conditioning device and a first environmental parameter of the environment in which the air conditioning device is located within a first preset time period; determining a first change in the first operating parameter within the first preset time period, and determining a second change in the first environmental parameter within the first preset time period; determining whether the first change and the second change satisfy a first preset condition, thereby determining whether the content of the target material in the air conditioning device is lower than a first preset threshold, wherein the first preset condition is a condition corresponding to the current operating mode of the air conditioning device.

[0006] In an exemplary embodiment, before determining whether the first change and the second change satisfy a first preset condition to determine whether the content of the target material in the air conditioning device is lower than a first preset threshold, the method further includes: if the current operating mode is determined to be a cooling mode or a dehumidification mode, acquiring the outdoor temperature of the environment where the air conditioning device is located, determining a second preset condition corresponding to the cooling mode or the dehumidification mode based on the temperature range of the outdoor temperature, and determining the second preset condition as the first preset condition, wherein the first environmental parameter includes the outdoor temperature; if the current operating mode is determined to be a heating mode, determining a third preset condition corresponding to the heating mode, and determining the third preset condition as the first preset condition.

[0007] In an exemplary embodiment, obtaining a first operating parameter of an air conditioning device and a first environmental parameter of the environment in which the air conditioning device is located within a first preset time period includes: receiving operating status data reported by the air conditioning device at preset time intervals; obtaining the first operating parameter and the first environmental parameter from the operating status data, wherein the first operating parameter includes at least one of the following: the operating frequency of a first component of the air conditioning device, and the component temperature of a second component of the air conditioning device; the first environmental parameter includes at least one of the following: outdoor temperature and indoor temperature.

[0008] In an exemplary embodiment, determining whether the first change and the second change satisfy a first preset condition to determine whether the content of the target material in the air conditioning device is lower than a first preset threshold includes: if it is determined that both the first change and the second change satisfy the first preset condition, determining that the content of the target material is lower than the first preset threshold; if it is determined that the first change and / or the second change do not satisfy the first preset condition, determining a third change of a second operating parameter of the air conditioning device and a fourth change of a second environmental parameter of the environment in which the air conditioning device is located within a second preset time period, and determining whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, wherein the second preset time period is longer than the first preset time period, the start time of both the first preset time period and the second preset time period is the time when the air conditioning device starts operating, and the second preset threshold is greater than the first preset threshold.

[0009] In an exemplary embodiment, before determining whether the content of the target material is lower than a second preset threshold based on the third change and the fourth change, the method further includes: obtaining the second operating parameter and the second environmental parameter from the operating status data reported by the air conditioning device, wherein the second operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning device, the component temperature of the second component of the air conditioning device, the operating mode of the air conditioning device, and the operating power of the air conditioning device; the second environmental parameter includes at least one of the following: outdoor temperature and indoor temperature; determining a fourth preset condition based on the current operating mode and the outdoor temperature, wherein the fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change.

[0010] In an exemplary embodiment, determining whether the content of the target material is lower than a second preset threshold based on the third change amount and the fourth change amount includes: determining that the content of the target material is lower than the second preset threshold when both the third change amount and the fourth change amount satisfy the fourth preset condition; and determining that the content of the target material is not lower than the second preset threshold when the third change amount and / or the fourth change amount does not satisfy the fourth preset condition.

[0011] In one exemplary embodiment, the method further includes: when it is determined that the content of the target material is lower than a first preset threshold / a second preset threshold, sending the operating status data of the air conditioning equipment to a first object; and determining whether to send a prompt message to a second object based on the diagnostic results fed back by the first object, wherein the prompt message is used to prompt the second object to perform maintenance on the air conditioning equipment.

[0012] According to another embodiment of the present invention, a target material detection device is also provided, comprising: an acquisition module, configured to acquire a first operating parameter of an air conditioning device and a first environmental parameter of the environment in which the air conditioning device is located within a first preset time period; a first determination module, configured to determine a first change in the first operating parameter within the first preset time period and a second change in the first environmental parameter within the first preset time period; and a second determination module, configured to determine whether the first change and the second change satisfy a first preset condition, thereby determining whether the content of the target material in the air conditioning device is lower than a first preset threshold, wherein the first preset condition is a condition corresponding to the current operating mode of the air conditioning device.

[0013] According to another aspect of the present invention, a computer-readable storage medium is also provided, wherein a computer program is stored therein, wherein the computer program is configured to execute the above-described method for detecting the target material when it is run.

[0014] According to another aspect of the present invention, an electronic device is also provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the above-described method for detecting the target material through the computer program.

[0015] In this embodiment, the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located are first obtained within a first preset time period. Then, the first change in the first operating parameters within the first preset time period and the second change in the first environmental parameters within the first preset time period are determined. It is then determined whether the first change and the second change meet a first preset condition to determine whether the content of the target material in the air conditioning equipment is lower than a first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment. By adopting the above solution, the problem of poor user experience in the prior art, where users cannot detect whether the decline in the cooling and heating effect of the air conditioner is caused by the lack of refrigerant, and can only be determined after reporting a repair, is solved. Thus, the refrigerant content of the air conditioner is automatically monitored, and timely warnings are issued. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the hardware environment for an optional target material detection method according to an embodiment of this application;

[0019] Figure 2 This is a flowchart of an optional target material detection method according to an embodiment of the present invention;

[0020] Figure 3 This is a flowchart illustrating an optional target material detection method according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of an optional method for statistical analysis of push records according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the interface of an optional expert operating system according to an embodiment of the present invention;

[0023] Figure 6 This is an overall product flow diagram of an optional target material detection method according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of a data model of an optional detection system according to an embodiment of the present invention;

[0025] Figure 8 A structural block diagram of an optional target material detection device according to an embodiment of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] According to one aspect of the embodiments of this application, a method for detecting a target material is provided. This method for detecting target materials is widely applicable to whole-house intelligent digital control application scenarios such as smart homes, smart home ecosystems, and intelligence house ecosystems. Optionally, in this embodiment, the above-mentioned method for detecting target materials can be applied to, for example... Figure 1 The hardware environment shown consists of terminal device 102 and server 104. For example... Figure 1As shown, server 104 is connected to terminal device 102 via a network and can be used to provide services (such as application services) to the terminal or clients installed on the terminal. A database can be set up on the server or independently of the server to provide data storage services for server 104. Cloud computing and / or edge computing services can be configured on the server or independently of the server to provide data processing services for server 104.

[0029] The aforementioned network may include, but is not limited to, at least one of the following: wired network, wireless network. The aforementioned wired network may include, but is not limited to, at least one of the following: wide area network, metropolitan area network, local area network. The aforementioned wireless network may include, but is not limited to, at least one of the following: Wi-Fi (Wireless Fidelity), Bluetooth. Terminal device 102 may not be limited to PC, mobile phone, tablet computer, smart air conditioner, smart range hood, refrigerator, smart oven, smart stove, smart washing machine, smart water heater, smart washing equipment, smart dishwasher, smart projector, smart TV, smart clothes rack, smart curtains, smart audio-visual equipment, smart socket, smart speaker, smart speaker box, smart fresh air equipment, smart kitchen and bathroom equipment, smart bathroom equipment, smart robot vacuum cleaner, smart window cleaning robot, smart mopping robot, smart air purifier, smart steam oven, smart microwave oven, smart water heater, smart air purifier, smart water dispenser, smart door lock, etc.

[0030] This embodiment provides a method for detecting a target material, applied to a second device. Figure 2 This is a flowchart of an optional target material detection method according to an embodiment of the present invention, the process including the following steps:

[0031] Step S202: Obtain the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within the first preset time period;

[0032] It should be noted that the above-mentioned first operating parameter and first environmental parameter are data reported periodically by the air conditioning equipment during operation.

[0033] Step S204: Determine the first change amount of the first operating parameter within the first preset time period, and determine the second change amount of the first environmental parameter within the first preset time period;

[0034] It should be noted that the first change refers to the change of multiple operating sub-parameters included in the first operating parameter. These multiple operating sub-parameters may include compressor operating frequency, fan speed, etc. The second change refers to the change of multiple environmental sub-parameters included in the first environmental parameter. These multiple environmental sub-parameters may include indoor temperature, outdoor temperature, etc., and may also include other parameters. This application does not limit this.

[0035] Step S206: Determine whether the first change and the second change satisfy the first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment.

[0036] It should be noted that the first change and the second change satisfying the first preset condition means that the multiple operating sub-parameters included in the first change and the multiple environmental sub-parameters included in the second change simultaneously satisfy the preset conditions corresponding to each sub-parameter.

[0037] In this embodiment, the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located are first obtained within a first preset time period. Then, the first change in the first operating parameters within the first preset time period and the second change in the first environmental parameters within the first preset time period are determined. It is then determined whether the first change and the second change meet a first preset condition to determine whether the content of the target material in the air conditioning equipment is lower than a first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment. By adopting the above solution, the problem of poor user experience in the prior art, where users cannot detect whether the decline in the cooling and heating effect of the air conditioner is caused by the lack of refrigerant, and can only be determined after reporting a repair, is solved. Thus, the refrigerant content of the air conditioner is automatically monitored, and timely warnings are issued.

[0038] Optionally, before performing step S206 above: determining whether the first change and the second change satisfy the first preset condition, and before determining whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, the method further includes: when the current operating mode is determined to be a cooling mode or a dehumidification mode, obtaining the outdoor temperature of the environment where the air conditioning equipment is located, determining a second preset condition corresponding to the cooling mode or the dehumidification mode based on the temperature range of the outdoor temperature, and determining the second preset condition as the first preset condition, wherein the first environmental parameter includes the outdoor temperature; when the current operating mode is determined to be a heating mode, determining a third preset condition corresponding to the heating mode, and determining the third preset condition as the first preset condition.

[0039] The criteria for determining whether refrigerant (target material) is lacking differs depending on the air conditioner's operating mode. Therefore, different preset conditions (judgment criteria) exist for different operating modes. Before making a judgment, it is necessary to determine the corresponding preset conditions based on the current operating mode of the equipment. If the current operating mode is cooling or dehumidifying, the second preset condition is determined based on the outdoor temperature range of the environment where the air conditioner is located, and this second preset condition is set as the first preset condition. If the current operating mode is determined to be heating, a third preset condition corresponding to this heating mode is determined, and this third preset condition is set as the first preset condition.

[0040] Optional example: If the operating mode is cooling or dehumidifying, it indicates that the outdoor temperature is high or slightly high. In this case, the outdoor temperature will affect the compressor operating frequency of the air conditioning equipment. Therefore, it is necessary to determine the range of the outdoor temperature. If it is in (32, 43], then the following three conditions must be met: (1) Compressor operating frequency f(2min) >= 50Hz; (2) Indoor coil temperature Tp(0s) - Tp(2min) <= 1.5℃; (3) Tr(2min) - Tp(2min) <= 1.5℃, where Tr is the indoor temperature and Tp is the indoor coil temperature. If the outdoor temperature is between (16, 32], The following three conditions must be met: (1) Compressor operating frequency f(2min)>=40Hz; (2) Indoor coil temperature Tp(0s)-Tp(2min)<=1.5℃; (3) Tr(2min)-Tp(2min)<=1.5℃. If the operating mode is heating mode, the following conditions must be met: (1) Compressor operating frequency f(5min)>=60Hz; (2) Indoor coil temperature Tp(5min)-Tp(0s)<=8℃; (3) Tp(5min)-Tr(5min)<=8℃; (4) Outdoor temperature Tao(5min)>=0℃.

[0041] Optionally, step S202 above: obtaining the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period can be achieved by the following scheme, including: receiving the operating status data reported by the air conditioning equipment at preset time intervals; obtaining the first operating parameters and the first environmental parameters from the operating status data, wherein the first operating parameters include at least one of the following: the operating frequency of the first component of the air conditioning equipment, and the component temperature of the second component of the air conditioning equipment; the first environmental parameters include at least one of the following: outdoor temperature and indoor temperature.

[0042] The first operating parameter and the first environmental parameter of the air conditioning equipment can be obtained by the following method: after the air conditioning equipment is started, receive the operating status data reported by the air conditioning equipment, and parse the first operating parameter and the second operating parameter from the operating status data. The first operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment (i.e., the operating frequency of the compressor), and the component temperature of the second component of the air conditioning equipment (the indoor coil of the air conditioner); the first environmental parameter includes at least one of the following: indoor temperature and outdoor temperature.

[0043] Optionally, step S206 above: determining whether the first change and the second change satisfy the first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, can be implemented by the following scheme, including: if it is determined that both the first change and the second change satisfy the first preset condition, determining that the content of the target material is lower than the first preset threshold; if it is determined that the first change and / or the second change do not satisfy the first preset condition, determining the third change of the second operating parameter of the air conditioning equipment and the fourth change of the second environmental parameter of the environment in which the air conditioning equipment is located within a second preset time period, and determining whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, wherein the second preset time period is longer than the first preset time period, the start time of both the first preset time period and the second preset time period is the time when the air conditioning equipment starts to operate, and the second preset threshold is greater than the first preset threshold.

[0044] If it is determined that both the first change and the second change satisfy the first preset condition, then it is determined that the content of the target material is lower than the first preset threshold. If it is determined that the first change and / or the second change do not satisfy the first preset condition, then further judgment is needed to determine whether the target material is lower than the second preset threshold. The second preset threshold is greater than the first preset threshold. That is, if it is determined that the target material is not severely lacking, then it is necessary to further judge whether the target material is slightly lacking. First, determine the third change of the second operating parameter of the air conditioning equipment and the fourth change of the second environmental parameter of the environment where the air conditioning equipment is located within the second preset time period, and determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change. The second preset time period is longer than the first preset time period, and the start time of the second preset time period is the same as that of the first preset time period.

[0045] It is understandable that if the air conditioner is short of refrigerant (target material), the greater the degree of deficiency, the easier it is to detect. Therefore, after the air conditioner is running, the content of the target material is first checked to see if it is lower than the first preset threshold (i.e., to check if there is a serious refrigerant deficiency). After determining that there is no serious refrigerant deficiency, the content of the target material is checked to see if it is lower than the second preset threshold (i.e., to check if there is a slight refrigerant deficiency). Therefore, the first preset threshold is less than the second preset threshold, and the first preset time period is less than the second preset time period.

[0046] Optionally, before determining whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, the method further includes: obtaining the second operating parameter and the second environmental parameter from the operating status data reported by the air conditioning equipment, wherein the second operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment, the component temperature of the second component of the air conditioning equipment, the operating mode of the air conditioning equipment, and the operating power of the air conditioning equipment; the second environmental parameter includes at least one of the following: outdoor temperature and indoor temperature; determining a fourth preset condition based on the current operating mode and the outdoor temperature, wherein the fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change.

[0047] After determining that the air conditioning equipment is not severely short of refrigerant, it is necessary to further determine whether the air conditioning equipment is slightly short of refrigerant. The parameters to be judged at this time are different. Therefore, it is necessary to parse the second operating parameter and the second environmental parameter from the operating status data. The second operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment (the operating frequency of the air conditioning compressor), the component temperature of the second component of the air conditioning equipment (the temperature of the air conditioning indoor coil), the operating mode of the air conditioning (fan speed, etc.), and the operating power of the air conditioning equipment. The second environmental parameter includes at least one of the following: outdoor temperature and indoor temperature. Based on the current operating mode and outdoor temperature, a fourth preset condition is determined. The fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, that is, to determine whether the air conditioning is slightly short of refrigerant.

[0048] An optional example of the process for determining the fourth preset condition based on the current operating mode and the outdoor temperature includes:

[0049] If the current operating mode is cooling or dehumidifying, it is necessary to further determine the range of outdoor temperature.

[0050] (1) If the outdoor temperature Tao(15min (15min is the second preset time period)) is in the range of (32, 43], then the fourth preset condition includes:

[0051] (a) The compressor operating frequency f(15min) >= 50Hz;

[0052] (b) Indoor coil temperature Tp(15min) <= 7℃;

[0053] (c) Outdoor exhalation temperature Todp(15min) < 80℃;

[0054] (d) Wind speed ws(15min) = High wind;

[0055] (e) The real-time power of the whole machine, w, is compared with the average power W at the same outdoor temperature and operating frequency range at the moment of startup, w / W<0.8.

[0056] (2) If the outdoor temperature Tao(15min) is in (16, 32], then the fourth preset condition includes:

[0057] (a) The compressor operating frequency f(15min) >= 40Hz;

[0058] (b) Indoor coil temperature Tp(15min) <= 5℃;

[0059] (c) Outdoor exhalation temperature Todp(15min) < 65℃;

[0060] (d) Wind speed ws(15min) = High wind;

[0061] (e) The real-time power of the whole machine, w, is compared with the average power W at the same outdoor temperature and operating frequency range at the moment of startup, w / W<0.8.

[0062] (3) If the current operating mode is heating mode, the fourth preset condition includes:

[0063] (a) The compressor operating frequency f(15min) >= 60Hz;

[0064] (b) Indoor coil temperature Tp(15min) <= 50℃;

[0065] (c) Outdoor temperature Tao(15min) >= 0℃;

[0066] (d) Wind speed ws(15min) = High wind;

[0067] (e) The real-time power of the whole machine, w, is compared with the average power W at the same outdoor temperature and operating frequency range at the moment of startup, w / W<0.8.

[0068] Based on the above steps, the above determination steps are performed: determining whether the content of the target material is lower than the second preset threshold according to the third change amount and the fourth change amount, including: determining that the content of the target material is lower than the second preset threshold when both the third change amount and the fourth change amount meet the fourth preset condition; and determining that the content of the target material is not lower than the second preset threshold when the third change amount and / or the fourth change amount do not meet the fourth preset condition.

[0069] Based on the above fourth preset condition, if both the third and fourth changes meet the fourth preset condition, then the content of the target material is determined to be lower than the second preset threshold, that is, the air conditioner is determined to be slightly short of refrigerant; if the third and / or fourth changes do not meet the fourth preset condition, then the content of the target material is determined to be not lower than the second preset threshold.

[0070] Optionally, the method further includes: when it is determined that the content of the target material is lower than a first preset threshold / a second preset threshold, sending the operating status data of the air conditioning equipment to a first object; determining whether to send a prompt message to a second object based on the diagnostic results fed back by the first object, wherein the prompt message is used to prompt the second object to repair the air conditioning equipment.

[0071] When the content of the target material is determined to be lower than the first preset threshold / second preset threshold, that is, when the air conditioner is determined to be severely or slightly deficient in refrigerant, the operating status data of the air conditioner and the judgment result are sent to the first object, so that the first object (expert) can accurately judge whether the air conditioner needs to be repaired based on the data, and determine whether the second object needs to be prompted to repair the air conditioner based on the diagnosis results fed back by the first object.

[0072] Optionally, the above-mentioned detection method for the target material can also be implemented through the following process, such as... Figure 3 As shown, Figure 3 This is a flowchart illustrating an optional target material detection method according to an embodiment of the present invention, specifically including the following steps:

[0073] Step 1: Monitor device operating status via cloud;

[0074] Step 2: Determine if refrigerant is missing using a refrigerant shortage detection algorithm;

[0075] Step 3: If the judgment result is "severe refrigerant shortage" or "slight refrigerant shortage", then input the judgment result and equipment operating status data into the expert judgment system;

[0076] Step 4: Experts make manual judgments. The industry's electrical control manager, as an algorithm expert, will further judge based on the data reported by the equipment.

[0077] Step 5: If the expert determines that after-sales service needs to be pushed, they can click to push after-sales service to connect to the after-sales system. After receiving the information, the after-sales system will generate a work order according to the equipment information; if it is determined that after-sales service is not needed, it will not be pushed.

[0078] Optionally, the system can automatically perform statistics on push notifications, and the statistics will include, for example: Figure 4 As shown, the system can summarize and statistically analyze data such as the number of devices powered on, the number of devices that meet the requirements for expert system push notifications, the number of devices actually pushed to the expert system, the number of devices actually pushed to after-sales service, and the number of devices that generate work orders, based on the date and model. By automatically compiling the above information, businesses can better manage the after-sales information of air conditioning equipment, and can also judge and predict the R&D trend of air conditioning equipment based on the data.

[0079] The interface for experts to push after-sales service is as follows: Figure 5 As shown, Figure 5 This is a schematic diagram of the interface of an optional expert operating system according to an embodiment of the present invention. Experts can use this system to query fault lists by date and model, and can also query detailed operating data (down to the day) and historical detailed data of different devices. Experts can also enter judgment results and judgment basis through the judgment processing function; and connect to the after-sales data flow through the push after-sales function to push data in real time. The fault list displayed in this operation interface includes the following information: MAC, model number, installation province, installation time, usage duration, refrigerant circulation abnormality fault judgment time, type (serious, minor), power comparison value (minor refrigerant shortage), number of times the algorithm is satisfied, etc. Through the above information display, experts can quickly traverse relevant information to accurately complete the judgment.

[0080] Step 6: After-sales personnel perform repairs according to the work order.

[0081] Through the above solution, the cloud automatically judges the refrigerant deficiency based on the data reported by the device. If the judgment result is "minor refrigerant deficiency" or "serious refrigerant deficiency", the information is pushed to experts for manual judgment. Then, a work order is generated according to the expert's instructions, and a repairman is dispatched to the user's home for repair. In this way, the system can automatically detect whether the user's home air conditioning equipment is short of refrigerant, help the user repair in a timely manner, and improve the user experience.

[0082] Based on the above process, the overall product flow chart of this invention is summarized as follows: Figure 6 As shown, the system first uses big data cloud diagnostics to make a preliminary judgment on whether the equipment is short of refrigerant. After the preliminary judgment that the equipment is short of refrigerant, it is pushed to the experts. The experts make a judgment on the unified operation system application page. After the judgment confirms that the equipment is indeed short of refrigerant, it is pushed to the after-sales HCC so that the repair personnel can come to the site for repair in a timely manner.

[0083] The above-mentioned detection method for target materials can be applied to a detection system for target materials, which includes, for example: Figure 7 The data model shown includes:

[0084] 1. The algorithm result table must include: date, WiFi type, MAC address, device error time, and error code.

[0085] 2. Expert System Results Table: Date, Industry Code, Industry Description, WiFi Type, Model Code, Model Description, Machine Type, MAC Address, Equipment Abnormality Time, Abnormality Code, Work Order Number.

[0086] 3. Anomaly Dimension Table: Industry Code, Industry Description (V-code Industry), Anomaly Code, Anomaly Description, Anomaly Level.

[0087] 4. Industry Dimension Table: Industry Code, Industry Description.

[0088] 5. Equipment processing status table: date, MAC address, operator, operation time, operation status, and judgment criteria.

[0089] 6. Device Personalization Indicators: Date, MAC, Number of times the algorithm is satisfied, Power Comparison Value, Reserved Field 1, Reserved Field 2, Reserved Field 3, Reserved Field 4, Reserved Field 5.

[0090] 7. Push after-sales interface: msgid, mac, machine code, model code, model description, judgment result, judgment basis.

[0091] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0092] This embodiment also provides a device control apparatus for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0093] Figure 8 A structural block diagram of an optional target material detection device according to an embodiment of the present invention; as shown. Figure 8 As shown, it includes:

[0094] The acquisition module 82 is used to acquire the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period.

[0095] It should be noted that the above-mentioned first operating parameter and first environmental parameter are data reported periodically by the air conditioning equipment during operation.

[0096] The first determining module 84 is used to determine the first change amount of the first operating parameter within the first preset time period, and to determine the second change amount of the first environmental parameter within the first preset time period.

[0097] It should be noted that the first change refers to the change of multiple operating sub-parameters included in the first operating parameter. These multiple operating sub-parameters may include compressor operating frequency, fan speed, etc. The second change refers to the change of multiple environmental sub-parameters included in the first environmental parameter. These multiple environmental sub-parameters may include indoor temperature, outdoor temperature, etc., and may also include other parameters. This application does not limit this.

[0098] The second determining module 86 is used to determine whether the first change and the second change satisfy the first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment.

[0099] It should be noted that the first change and the second change satisfying the first preset condition means that the multiple operating sub-parameters included in the first change and the multiple environmental sub-parameters included in the second change simultaneously satisfy the preset conditions corresponding to each sub-parameter.

[0100] The above-mentioned device first acquires the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period; then, it determines the first change in the first operating parameters within the first preset time period and the second change in the first environmental parameters within the same first preset time period; it determines whether the first and second changes meet a first preset condition to determine whether the content of the target material in the air conditioning equipment is lower than a first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment; by adopting the above solution, the problem of poor user experience caused by users not being able to detect whether the decline in the cooling or heating effect of the air conditioner is due to refrigerant deficiency, requiring a repair request; and thus automatically monitoring the refrigerant content of the air conditioner and providing timely warnings.

[0101] Optionally, the second determining module 86 is further configured to, when determining that the current operating mode is a cooling mode or a dehumidification mode, obtain the outdoor temperature of the environment where the air conditioning device is located, determine a second preset condition corresponding to the cooling mode or the dehumidification mode based on the temperature range of the outdoor temperature, and determine the second preset condition as the first preset condition, wherein the first environmental parameter includes the outdoor temperature; when determining that the current operating mode is a heating mode, determine a third preset condition corresponding to the heating mode, and determine the third preset condition as the first preset condition.

[0102] The criteria for determining whether refrigerant (target material) is lacking differs depending on the air conditioner's operating mode. Therefore, different preset conditions (judgment criteria) exist for different operating modes. Before making a judgment, it is necessary to determine the corresponding preset conditions based on the current operating mode of the equipment. If the current operating mode is cooling or dehumidifying, the second preset condition is determined based on the outdoor temperature range of the environment where the air conditioner is located, and this second preset condition is set as the first preset condition. If the current operating mode is determined to be heating, a third preset condition corresponding to this heating mode is determined, and this third preset condition is set as the first preset condition.

[0103] Optional example: If the operating mode is cooling or dehumidifying, it indicates that the outdoor temperature is high or slightly high. In this case, the outdoor temperature will affect the compressor operating frequency of the air conditioning equipment. Therefore, it is necessary to determine the range of the outdoor temperature. If it is in (32, 43], then the following three conditions must be met: (1) Compressor operating frequency f(2min) >= 50Hz; (2) Indoor coil temperature Tp(0s) - Tp(2min) <= 1.5℃; (3) Tr(2min) - Tp(2min) <= 1.5℃, where Tr is the indoor temperature and Tp is the indoor coil temperature. If the outdoor temperature is between (16, 32], The following three conditions must be met: (1) Compressor operating frequency f(2min)>=40Hz; (2) Indoor coil temperature Tp(0s)-Tp(2min)<=1.5℃; (3) Tr(2min)-Tp(2min)<=1.5℃. If the operating mode is heating mode, the following conditions must be met: (1) Compressor operating frequency f(5min)>=60Hz; (2) Indoor coil temperature Tp(5min)-Tp(0s)<=8℃; (3) Tp(5min)-Tr(5min)<=8℃; (4) Outdoor temperature Tao(5min)>=0℃.

[0104] Optionally, the acquisition module 82 is further configured to receive operating status data reported by the air conditioning equipment at preset time intervals; and to acquire the first operating parameter and the first environmental parameter from the operating status data, wherein the first operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment, and the component temperature of the second component of the air conditioning equipment; and the first environmental parameter includes at least one of the following: outdoor temperature and indoor temperature.

[0105] The first operating parameter and the first environmental parameter of the air conditioning equipment can be obtained by the following method: after the air conditioning equipment is started, receive the operating status data reported by the air conditioning equipment, and parse the first operating parameter and the second operating parameter from the operating status data. The first operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment (i.e., the operating frequency of the compressor), and the component temperature of the second component of the air conditioning equipment (the indoor coil of the air conditioner); the first environmental parameter includes at least one of the following: indoor temperature and outdoor temperature.

[0106] Optionally, the second determining module 86 is further configured to: determine that the content of the target material is lower than the first preset threshold when both the first change and the second change satisfy the first preset condition; and determine that the content of the target material is lower than the second preset threshold when the first change and / or the second change does not satisfy the first preset condition, a third change in the second operating parameter of the air conditioning equipment and a fourth change in the second environmental parameter of the environment in which the air conditioning equipment is located within a second preset time period, and determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, wherein the second preset time period is longer than the first preset time period, the start time of both the first preset time period and the second preset time period is the time when the air conditioning equipment starts operating, and the second preset threshold is greater than the first preset threshold.

[0107] If it is determined that both the first change and the second change satisfy the first preset condition, then it is determined that the content of the target material is lower than the first preset threshold. If it is determined that the first change and / or the second change do not satisfy the first preset condition, then further judgment is needed to determine whether the target material is lower than the second preset threshold. The second preset threshold is greater than the first preset threshold. That is, if it is determined that the target material is not severely lacking, then it is necessary to further judge whether the target material is slightly lacking. First, determine the third change of the second operating parameter of the air conditioning equipment and the fourth change of the second environmental parameter of the environment where the air conditioning equipment is located within the second preset time period, and determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change. The second preset time period is longer than the first preset time period, and the start time of the second preset time period is the same as that of the first preset time period.

[0108] It is understandable that if the air conditioner is short of refrigerant (target material), the greater the degree of deficiency, the easier it is to detect. Therefore, after the air conditioner is running, the content of the target material is first checked to see if it is lower than the first preset threshold (i.e., to check if there is a serious refrigerant deficiency). After determining that there is no serious refrigerant deficiency, the content of the target material is checked to see if it is lower than the second preset threshold (i.e., to check if there is a slight refrigerant deficiency). Therefore, the first preset threshold is less than the second preset threshold, and the first preset time period is less than the second preset time period.

[0109] Optionally, the second determining module 86 is further configured to obtain the second operating parameters and the second environmental parameters from the operating status data reported by the air conditioning equipment, wherein the second operating parameters include at least one of the following: the operating frequency of the first component of the air conditioning equipment, the component temperature of the second component of the air conditioning equipment, the operating mode of the air conditioning equipment, and the operating power of the air conditioning equipment; the second environmental parameters include at least one of the following: outdoor temperature and indoor temperature; and determine a fourth preset condition based on the current operating mode and the outdoor temperature, wherein the fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change.

[0110] After determining that the air conditioning equipment is not severely short of refrigerant, it is necessary to further determine whether the air conditioning equipment is slightly short of refrigerant. The parameters to be judged at this time are different. Therefore, it is necessary to parse the second operating parameter and the second environmental parameter from the operating status data. The second operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment (the operating frequency of the air conditioning compressor), the component temperature of the second component of the air conditioning equipment (the temperature of the air conditioning indoor coil), the operating mode of the air conditioning (fan speed, etc.), and the operating power of the air conditioning equipment. The second environmental parameter includes at least one of the following: outdoor temperature and indoor temperature. Based on the current operating mode and outdoor temperature, a fourth preset condition is determined. The fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, that is, to determine whether the air conditioning is slightly short of refrigerant.

[0111] An optional example of the process for determining the fourth preset condition based on the current operating mode and the outdoor temperature includes:

[0112] If the current operating mode is cooling or dehumidifying, it is necessary to further determine the range of outdoor temperature.

[0113] (1) If the outdoor temperature Tao(15min (15min is the second preset time period)) is in the range of (32, 43], then the fourth preset condition includes:

[0114] (a) The compressor operating frequency f(15min) >= 50Hz;

[0115] (b) Indoor coil temperature Tp(15min) <= 7℃;

[0116] (c) Outdoor exhalation temperature Todp(15min) < 80℃;

[0117] (d) Wind speed ws(15min) = High wind;

[0118] (e) The real-time power of the whole machine, w, is compared with the average power W at the same outdoor temperature and operating frequency range at the moment of startup, w / W<0.8.

[0119] (2) If the outdoor temperature Tao(15min) is in (16, 32], then the fourth preset condition includes:

[0120] (a) The compressor operating frequency f(15min) >= 40Hz;

[0121] (b) Indoor coil temperature Tp(15min) <= 5℃;

[0122] (c) Outdoor exhalation temperature Todp(15min) < 65℃;

[0123] (d) Wind speed ws(15min) = High wind;

[0124] (e) The real-time power of the whole machine, w, is compared with the average power W at the same outdoor temperature and operating frequency range at the moment of startup, w / W<0.8.

[0125] If the current operating mode is heating mode, the fourth preset condition includes:

[0126] (a) The compressor operating frequency f(15min) >= 60Hz;

[0127] (b) Indoor coil temperature Tp(15min) <= 50℃;

[0128] (c) Outdoor temperature Tao(15min) >= 0℃;

[0129] (d) Wind speed ws(15min) = High wind;

[0130] (e) The real-time power of the whole machine, w, is compared with the average power W at the same outdoor temperature and operating frequency range at the moment of startup, w / W<0.8.

[0131] Optionally, the second determining module 86 is further configured to determine that the content of the target material is lower than the second preset threshold when both the third change and the fourth change satisfy the fourth preset condition; and to determine that the content of the target material is not lower than the second preset threshold when the third change and / or the fourth change do not satisfy the fourth preset condition.

[0132] Based on the above fourth preset condition, if both the third and fourth changes meet the fourth preset condition, then the content of the target material is determined to be lower than the second preset threshold, that is, the air conditioner is determined to be slightly short of refrigerant; if the third and / or fourth changes do not meet the fourth preset condition, then the content of the target material is determined to be not lower than the second preset threshold.

[0133] Optionally, the second determining module 86 is further configured to send the operating status data of the air conditioning equipment to the first object when it is determined that the content of the target material is lower than the first preset threshold / second preset threshold; and to determine whether to send a prompt message to the second object based on the diagnostic results fed back by the first object, wherein the prompt message is used to prompt the second object to repair the air conditioning equipment.

[0134] When the content of the target material is determined to be lower than the first preset threshold / second preset threshold, that is, when the air conditioner is determined to be severely or slightly deficient in refrigerant, the operating status data of the air conditioner and the judgment result are sent to the first object, so that the first object (expert) can accurately judge whether the air conditioner needs to be repaired based on the data, and determine whether the second object needs to be prompted to repair the air conditioner based on the diagnosis results fed back by the first object.

[0135] Embodiments of the present invention also provide a storage medium comprising a stored program, wherein the program, when executed, performs any of the methods described above.

[0136] Optionally, in this embodiment, the storage medium may be configured to store program code for performing the following steps:

[0137] S1, obtain the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period;

[0138] S2, determine the first change amount of the first operating parameter within the first preset time period, and determine the second change amount of the first environmental parameter within the first preset time period;

[0139] S3, determine whether the first change and the second change satisfy the first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment.

[0140] Embodiments of the present invention also provide an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0141] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0142] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0143] S1, obtain the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period;

[0144] S2, determine the first change amount of the first operating parameter within the first preset time period, and determine the second change amount of the first environmental parameter within the first preset time period;

[0145] S3, determine whether the first change and the second change satisfy the first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment.

[0146] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0147] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.

[0148] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0149] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for detecting a target material, characterized in that, include: Obtain the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period; Determine the first change amount of the first operating parameter within the first preset time period, and determine the second change amount of the first environmental parameter within the first preset time period; Determine whether the first change and the second change satisfy a first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than a first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment; The determination of whether the first change and the second change satisfy a first preset condition, in order to determine whether the content of the target material in the air conditioning equipment is lower than a first preset threshold, includes: If both the first change and the second change satisfy the first preset condition, the content of the target material is determined to be lower than the first preset threshold. If it is determined that the first change amount and / or the second change amount does not meet the first preset condition, the third change amount of the second operating parameter of the air conditioning equipment and the fourth change amount of the second environmental parameter of the environment where the air conditioning equipment is located are determined within the second preset time period, and the content of the target material is determined to be lower than the second preset threshold based on the third change amount and the fourth change amount, wherein the second preset time period is longer than the first preset time period, the start time of the first preset time period and the second preset time period are both the time when the air conditioning equipment starts to operate, and the second preset threshold is greater than the first preset threshold; Before determining whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, the method further includes: The second operating parameter and the second environmental parameter are obtained from the operating status data reported by the air conditioning equipment, wherein the second operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment, the component temperature of the second component of the air conditioning equipment, the operating mode of the air conditioning equipment, and the operating power of the air conditioning equipment; the second environmental parameter includes at least one of the following: outdoor temperature and indoor temperature. A fourth preset condition is determined based on the current operating mode and the outdoor temperature, wherein the fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change. Determining whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change includes: If both the third change and the fourth change satisfy the fourth preset condition, it is determined that the content of the target material is lower than the second preset threshold. If the third change amount and / or the fourth change amount do not meet the fourth preset condition, the content of the target material is determined to be not lower than the second preset threshold.

2. The method for detecting the target material according to claim 1, characterized in that, Before determining whether the first change and the second change satisfy a first preset condition, and before determining whether the content of the target material in the air conditioning equipment is lower than a first preset threshold, the method further includes: When the current operating mode is determined to be cooling mode or dehumidification mode, the outdoor temperature of the environment where the air conditioning equipment is located is obtained, and a second preset condition corresponding to the cooling mode or dehumidification mode is determined according to the temperature range of the outdoor temperature, and the second preset condition is determined as the first preset condition, wherein the first environmental parameter includes the outdoor temperature; If the current operating mode is determined to be the heating mode, a third preset condition corresponding to the heating mode is determined, and the third preset condition is determined as the first preset condition.

3. The method for detecting the target material according to claim 1, characterized in that, Acquiring the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period includes: Receive operating status data reported by the air conditioning equipment at preset time intervals; The first operating parameter and the first environmental parameter are obtained from the operating status data, wherein the first operating parameter includes at least one of the following: the operating frequency of the first component of the air conditioning equipment, and the component temperature of the second component of the air conditioning equipment; the first environmental parameter includes at least one of the following: outdoor temperature and indoor temperature.

4. The method for detecting the target material according to any one of claims 1-3, characterized in that, The method further includes: If the content of the target material is determined to be lower than the first preset threshold / second preset threshold, the operating status data of the air conditioning equipment is sent to the first object; Based on the diagnostic results reported by the first object, it is determined whether to send a prompt message to the second object, wherein the prompt message is used to prompt the second object to repair the air conditioning equipment.

5. A detection device for a target material, characterized in that, include: The acquisition module is used to acquire the first operating parameters of the air conditioning equipment and the first environmental parameters of the environment in which the air conditioning equipment is located within a first preset time period. The first determining module is used to determine the first change amount of the first operating parameter within the first preset time period, and to determine the second change amount of the first environmental parameter within the first preset time period. The second determining module is used to determine whether the first change amount and the second change amount meet the first preset condition, so as to determine whether the content of the target material in the air conditioning equipment is lower than the first preset threshold, wherein the first preset condition is the condition corresponding to the current operating mode of the air conditioning equipment; The second determining module is further configured to: determine that the content of the target material is lower than the first preset threshold when both the first change and the second change satisfy the first preset condition; and determine that the content of the target material is lower than the first preset threshold when the first change and / or the second change does not satisfy the first preset condition, the third change of the second operating parameter of the air conditioning equipment and the fourth change of the second environmental parameter of the environment in which the air conditioning equipment is located within a second preset time period, and determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change, wherein the second preset time period is longer than the first preset time period, the start time of both the first preset time period and the second preset time period is the time when the air conditioning equipment starts to operate, and the second preset threshold is greater than the first preset threshold. The second determining module is further configured to obtain the second operating parameters and the second environmental parameters from the operating status data reported by the air conditioning equipment, wherein the second operating parameters include at least one of the following: the operating frequency of the first component of the air conditioning equipment, the component temperature of the second component of the air conditioning equipment, the operating mode of the air conditioning equipment, and the operating power of the air conditioning equipment; the second environmental parameters include at least one of the following: outdoor temperature and indoor temperature; and determine a fourth preset condition based on the current operating mode and the outdoor temperature, wherein the fourth preset condition is used to determine whether the content of the target material is lower than the second preset threshold based on the third change and the fourth change. The second determining module is further configured to determine that the content of the target material is lower than the second preset threshold when both the third change and the fourth change satisfy the fourth preset condition; and to determine that the content of the target material is not lower than the second preset threshold when the third change and / or the fourth change do not satisfy the fourth preset condition.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program, when executed, performs the method described in any one of claims 1 to 4.

7. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to execute the method described in any one of claims 1 to 4 through the computer program.

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