CN115903589A - Method and system for remotely monitoring state of intelligent equipment - Google Patents
Method and system for remotely monitoring state of intelligent equipment Download PDFInfo
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- CN115903589A CN115903589A CN202211393852.2A CN202211393852A CN115903589A CN 115903589 A CN115903589 A CN 115903589A CN 202211393852 A CN202211393852 A CN 202211393852A CN 115903589 A CN115903589 A CN 115903589A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 230000005611 electricity Effects 0.000 claims abstract 4
- 229940057373 c-time Drugs 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The invention discloses a method and a system for remotely monitoring the state of intelligent equipment, relates to the technical field of Internet of things, and aims to realize remote monitoring of controlled equipment by using an intelligent socket without modifying the existing equipment, so that the realization cost is low. And does not need the specialized person to operate the near field remote control equipment in real time, can save the human cost, the invention includes: establishing a binding relationship between an intelligent socket and controlled equipment in a corresponding space, and recording the binding relationship in a remote control terminal, wherein the controlled equipment is installed in the corresponding space and is connected with a power supply through the intelligent socket; through smart jack, gather the electricity data of controlled equipment and upload to remote control terminal, electricity data includes at least: the intelligent socket supplies the current value to the controlled equipment; and the remote control terminal judges the power utilization state of the controlled equipment through the electrical data.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a method and a system for remotely monitoring the state of intelligent equipment.
Background
At present, the technology of the internet of things is widely applied to the field of household appliances such as smart home, and intelligent household appliance products are released by a plurality of household appliance brands. But in the production and teaching scenes of factories, school parks and the like, the technical scheme of the internet of things applied to the smart home is difficult to directly apply at present. For example, two schemes are mainly adopted for monitoring and acquiring the current state of the equipment, one scheme is that the solution is from a software level, windows and other application systems capable of realizing remote communication are installed in the equipment, an application program is installed on the equipment, and the equipment state is reported after the equipment is started; 2. the method solves the problems from a hardware level, such as improving near-field operation equipment such as a field staff terminal and the like, adding an alternating current transformer accessory, and directly reporting the states of equipment opening/closing and the like from the hardware level.
However, in production and teaching scenes such as factories and school parks, some specificities exist, and these schemes also have some defects, such as: many electronic devices used in factories and school parks often adopt embedded operating systems so as to save component cost to the maximum extent, and general operating systems such as windows and android generally need a certain hardware performance basis, many electronic devices used in factories and school parks cannot be directly installed and used, but in order to be able to use the general operating systems, the existing devices are modified, so that the cost is high, many devices also need to be disassembled, and the electronic devices do not have operability in many scenes of practical application; for another example: the device state is directly reported from a hardware layer by improving the near field operation device, remote monitoring of large-scale devices is difficult to realize, and the problem of monitoring interruption still exists unless a specially-assigned person can operate the near field remote control device in real time.
Disclosure of Invention
The method and the system for remotely monitoring the state of the intelligent equipment provided by the invention can realize remote monitoring of the controlled equipment by adopting the intelligent socket without modifying the existing equipment, and have low realization cost. And moreover, a specially-assigned person is not required to operate the near-field remote control equipment in real time, so that the labor cost can be saved.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for remotely monitoring a state of a smart device, including: s1, establishing a binding relationship between an intelligent socket and controlled equipment in a corresponding space, and recording the binding relationship in a remote control terminal, wherein the controlled equipment is installed in the corresponding space and is connected with a power supply through the intelligent socket; s2, collecting electrical data of the controlled equipment and uploading the electrical data to the remote control terminal through the intelligent socket, wherein the electrical data at least comprises the following components: the intelligent socket supplies the current value of the controlled equipment; s3, the remote control terminal judges the power utilization state of the controlled equipment through the electrical data, wherein the type of the power utilization state comprises the following steps: and starting up and shutting down.
In a second aspect, the present invention provides a system for remotely monitoring the status of a smart device, comprising: the intelligent socket, the controlled equipment and the remote control terminal; the remote control terminal is used for storing the binding relationship between an intelligent socket and controlled equipment in a corresponding space, wherein the controlled equipment is installed in the corresponding space and is connected with a power supply through the intelligent socket; the intelligent socket is used for recording the electrical data of the controlled equipment and uploading the electrical data to the remote control terminal, and the electrical data at least comprises: the intelligent socket supplies the current value to the controlled equipment; the remote control terminal is used for judging the power utilization state of the controlled equipment through the electrical data, wherein the type of the power utilization state comprises the following steps: and starting up and shutting down.
The invention has the beneficial effects that: according to the method and the system for remotely monitoring the state of the intelligent equipment, the electrical data of the controlled equipment is collected through the intelligent socket and reported to the remote control terminal, and the remote control terminal can remotely judge the on/off of the controlled equipment through the electrical data. And the service life of the controlled equipment can be judged by accumulating and recording the electrical data of the controlled equipment. This scheme only needs to adopt smart jack can realize that remote monitoring controlled equipment need not reform transform existing equipment, and the cost of realization is very low. And moreover, a specially-assigned person is not required to operate the near-field remote control equipment in real time, so that the labor cost can be saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 and 2 are schematic flow diagrams of a method for remotely monitoring a state of an intelligent device according to the present invention.
Fig. 3 is a schematic diagram of a system architecture of a system for remotely monitoring a state of an intelligent device according to the present invention.
Fig. 4 and 5 are schematic diagrams of embodiments of a method and a system for remotely monitoring a state of an intelligent device according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
An embodiment of the present invention provides a method for remotely monitoring a state of an intelligent device, as shown in fig. 1, including:
s1, establishing a binding relationship between an intelligent socket and controlled equipment in a corresponding space, and recording the binding relationship in a remote control terminal;
and the controlled equipment is arranged in the corresponding space and is connected with a power supply through the intelligent socket. Specifically, the corresponding space includes a factory, a teaching site, and the like where the controlled device is installed, and these sites are usually located in an indoor space, and thus are referred to as "corresponding spaces". The remote control terminal can be a terminal device such as a smart phone, a Personal Computer (PC) of an employee, a tablet personal computer and the like. The intelligent socket can be understood as a socket product for supplying power, a 4G/5G communication module is installed on the intelligent socket, and the intelligent socket can be connected with a remote control terminal through a mobile wireless network;
s2, collecting the electrical data of the controlled equipment through the intelligent socket and uploading the electrical data to the remote control terminal;
wherein the electrical data comprises at least: the intelligent socket supplies the current value to the controlled equipment;
s3, the remote control terminal judges the power utilization state of the controlled equipment through the electrical data;
wherein, the type of power consumption state includes: and starting up and shutting down.
In practical application, can run APP on remote control terminal, APP's function lies in infrared intelligent remote controller and intelligent socket after-line, monitors intelligent socket's output current, electric data such as output power. For example: and entering the function page, and connecting the infrared intelligent remote controller with the intelligent socket. Terminal equipment such as infrared remote controller, smart jack can establish the binding relation with corresponding space through APP to will be controlled equipment and infrared remote controller, smart jack establish 1 to many terminal and equipment binding relation. For example: controlled equipment such as an all-in-one machine, an intelligent blackboard and the like and an intelligent socket establish a binding relationship between 1-to-many terminals and the equipment. Setting attribute values from a plurality of terminals, prefabricating an all-in-one machine type equipment model, selecting the size, power, energy consumption level and brand of the all-in-one machine, and extracting preset current values for starting and stopping in different life cycle ranges from the all-in-one machine type object model by the system. The control of the all-in-one machine is from a protocol converter, the current value of the intelligent socket is inquired for many times at the moment of opening and closing the equipment, and the on/off state feedback of the all-in-one machine equipment is given after the current value reaches a preset value.
Further, this embodiment further includes: and S0, establishing a binding relationship between the infrared intelligent remote controller and the controlled equipment in the corresponding space, and recording the binding relationship in the remote control terminal, wherein the infrared intelligent remote controller is used for controlling the power utilization state of the controlled equipment in the corresponding space. And after S1, generating an identifier (such as a room number, a good factory building and the like) of a corresponding space, and marking the intelligent socket with a binding relationship established between the identifier and the corresponding space. The remote control terminal periodically detects whether the intelligent socket is on-line or not, and if the intelligent socket is off-line, expected information is generated.
Further, as shown in fig. 2, the present embodiment further includes:
and S4, the remote control terminal determines the current life cycle interval of the controlled equipment by using the electrical data.
The specific step of determining the current life cycle interval of the controlled device may include: and the remote control terminal acquires a life cycle interval corresponding to the controlled equipment. And the remote control terminal determines the current life cycle interval of the controlled equipment by using the current electrical data collected from the intelligent socket. Specifically, at least 2 continuous life cycle intervals are divided corresponding to the full life cycle of the object model of the controlled device, each life cycle interval corresponds to a current value set, and the current value set comprises current values corresponding to the start-up and shut-down states of the life cycle interval.
The attributes of the controlled device may be set or recorded in the remote control terminal, such as: if the controlled equipment is air-conditioning equipment, the attributes included in the object model include information such as air-conditioning power, energy consumption level, brand, delivery date and the like. The intelligent socket can record output current values, power values and the like at the moment of opening and closing the controlled equipment, the remote control terminal periodically collects the current values recorded by the intelligent socket, and after the current values reach the opening/closing preset values, the opening/closing state feedback of the controlled equipment is given.
In this embodiment, data samples of the same device may be continuously collected, and current and power change curves of the device at different times from the start of the device may be stored, so as to predict the life stage of the device. Specifically, the method comprises the following steps:
before the controlled device is started, the remote control terminal queries an object model of the controlled device, where the object model of the controlled device includes attribute information of the controlled device, and the attribute information includes: the size, power, energy consumption level and brand information of the controlled equipment;
after the controlled equipment is started or closed, acquiring a current value when the controlled equipment is started or closed and a power and current value in each subsequent operation time slice through the intelligent socket, wherein the interval of the operation time slices is 5 seconds;
after the intelligent socket is started or shut down, acquiring the time when the current value reaches a starting threshold value or a shutting threshold value through the intelligent socket, wherein the time A is the starting or shutting time point, and the time B is the time when the current value reaches the starting threshold value or the shutting threshold value;
acquiring time C and time D, wherein the time C is the time for the current value to start to maintain stability, and the time D is the time for the power value to start to maintain stability;
and acquiring dynamic change time E of the controlled equipment during starting or closing, wherein E = min (time C-time A) (time D-time C). Wherein "min () ()" indicates that a minimum value is selected from the difference between (time C-time A) and (time D-time C). The dynamic change time E obtained in this embodiment is used to monitor a time interval from power on to power off, and provide a basis for a life cycle of the device; and may further give feedback on the change in the state of the device based on this time;
specifically, if the current value does not change within the slicing interval of (time C-time a)/5s × 0.6, it is determined that the current value starts to be maintained stable. If the power value does not change within the slice interval of (time C-time a)/5s × 0.6, it is determined that the power value starts to be maintained stable.
Further, after the controlled device is started, obtaining continuous time slices and current values and power values output by the smart sockets corresponding to the time slices, where a time point when the controlled device is started is Lt1, the obtained continuous time slices are St1, st2.. Stn, the current values output by the smart sockets are Pt1, pt2.. Ptn, and the power values output by the smart sockets are Et1, et2.. Etn. n is a positive integer.
After the controlled device is shut down, obtaining continuous time slices and current values and power values output by the smart socket corresponding to the time slices again, wherein the time point of the controlled device being shut down is Ltd2, the obtained continuous time slices are Std1 and Std2.
Normalizing the collected current value and power value to obtain a normalized current value P ’
t＝(Pt-mean(Pt))/(max(Pt)-min(Pt))，P ’ t is the normalized value of the t sampling point in the current data in the preset time length, x (t) is the amplitude of the t sampling point in the frequency spectrum of the vibration data in the preset time length, mean (Pt)) is the average value of the current in the preset time length, and max (Pt)) is the current in the preset time lengthMin (Pt)) is the minimum value of the current for a preset time period.
The normalized power value E't = (Et-mean (Et))/(max (Et) -min (Et)), mean (Et)) is an average value of the power in the preset time period, max (Et)) is a maximum value of the power in the preset time period, and min (Et)) is a minimum value of the power in the preset time period.
And recording the normalized current value and the normalized power value after the controlled equipment is started and shut down every time until a starting and shutting current change curve and a starting and shutting power change curve are obtained. In practical application, the brand, the model, the equipment use time, the starting state, the threshold A, the threshold B, the time A, the time B, the time C and the time D can be stored in a background, and the starting threshold and the starting time and the stopping threshold and the starting time are optimized.
Further, the method also comprises the following steps: and establishing a corresponding relation between the startup and shutdown current change curves of the controlled equipment and the life cycle interval of the controlled equipment. And establishing a corresponding relation between the power-on and power-off change curves of the controlled equipment and the life cycle interval of the controlled equipment.
The S4 comprises the following steps: and the remote control terminal determines the current life cycle interval of the controlled equipment by utilizing the electrical data and the corresponding relation between the established change curve and the life cycle interval of the controlled equipment. As shown in fig. 4 and 5, the air conditioner is taken as a controlled device, for example, before the air conditioner is controlled, the system performs single-dimensional division with reference to the time period for putting the electronic device on shelf, operating and maintaining, and waiting for replacement. The air conditioning equipment is started, the equipment starting time point is time Lt1, and the time point St1, st2.. Stn, the current value Pt1, pt2.. Ptn and the power value Et1, et2.. Etn of each time slice; time point Lt2 at which the device is switched off, time points St1, st2.. Stn for each time slice, current values Pt1, pt2.. Ptn, power values Et1, et2.. Etn; after the equipment is completely closed, data acquired in the process from the equipment opening to the equipment closing process and information such as equipment type, brand, model and the like are stored in a background system, and the current value and the power value of each time period are normalized by using a calculation formula. Finally, through the acquisition and analysis of the same equipment data samples, the current and power change curves of the equipment at different time from the start of the equipment are finally obtained, so that the life stage of the equipment is predicted.
The present embodiment further provides a system for remotely monitoring a state of an intelligent device, as shown in fig. 3, including: the intelligent socket, the controlled equipment and the remote control terminal;
the remote control terminal is used for storing the binding relationship between an intelligent socket and controlled equipment in a corresponding space, wherein the controlled equipment is installed in the corresponding space and is connected with a power supply through the intelligent socket;
the intelligent socket is used for recording the electrical data of the controlled equipment and uploading the electrical data to the remote control terminal, and the electrical data at least comprises: the intelligent socket supplies the current value to the controlled equipment;
the remote control terminal is used for judging the power utilization state of the controlled equipment through the electrical data, wherein the type of the power utilization state comprises the following steps: and starting up and shutting down.
Further, the remote control terminal is further configured to determine a current life cycle interval of the controlled device by using the electrical data.
According to the method and the system for remotely monitoring the state of the intelligent equipment, provided by the embodiment of the invention, the electrical data of the controlled equipment is collected through the intelligent socket and reported to the remote control terminal, and the remote control terminal realizes remote judgment on the on/off of the controlled equipment through the electrical data. And the service life of the controlled equipment can be judged by accumulating and recording the electrical data of the controlled equipment. This scheme only needs to adopt smart jack can realize that remote monitoring controlled equipment need not reform transform existing equipment, and the cost of realization is very low. And moreover, a specially-assigned person is not required to operate the near-field remote control equipment in real time, so that the labor cost can be saved.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A method for remotely monitoring the status of a smart device, comprising:
s1, establishing a binding relationship between an intelligent socket and controlled equipment in a corresponding space, and recording the binding relationship in a remote control terminal, wherein the controlled equipment is installed in the corresponding space and is connected with a power supply through the intelligent socket;
s2, collecting electrical data of the controlled equipment and uploading the electrical data to the remote control terminal through the intelligent socket, wherein the electrical data at least comprises the following components: the intelligent socket supplies the current value to the controlled equipment;
s3, the remote control terminal judges the electricity utilization state of the controlled equipment through the electrical data, wherein the type of the electricity utilization state comprises the following steps: and starting up and shutting down.
2. The method of claim 1, further comprising:
s4, the remote control terminal determines the current life cycle interval of the controlled equipment by using the electrical data; the remote control terminal acquires a life cycle interval corresponding to the controlled equipment; and the remote control terminal determines the current life cycle interval of the controlled equipment by using the current electrical data collected from the intelligent socket.
3. The method of claim 2, wherein the method comprises the following steps: and dividing at least 2 continuous life cycle intervals corresponding to the full life cycle of the object model of the controlled equipment, wherein each life cycle interval corresponds to a current value set, and the current value set comprises current values corresponding to the start-up state and the shutdown state of the life cycle interval.
4. The method of claim 2, further comprising:
before the controlled device is started, the remote control terminal queries an object model of the controlled device, where the object model of the controlled device includes attribute information of the controlled device, and the attribute information includes: the size, power, energy consumption level and brand information of the controlled equipment;
after the controlled equipment is started or closed, acquiring a current value when the controlled equipment is started or closed and a power and current value in each subsequent operation time slice through the intelligent socket, wherein the interval of the operation time slices is 5 seconds;
after the intelligent socket is started or shut down, acquiring the time when the current value reaches a starting threshold value or a shutting threshold value through the intelligent socket, wherein the time A is the starting or shutting time point, and the time B is the time when the current value reaches the starting threshold value or the shutting threshold value;
acquiring time C and time D, wherein the time C is the time for the current value to start to maintain stability, and the time D is the time for the power value to start to maintain stability;
acquiring dynamic change time E of the controlled equipment during starting or closing, wherein E = min (time C-time A) (time D-time C);
if the current value is not changed in the slicing interval of (time C-time A)/5s 0.6, judging that the current value starts to maintain stable;
if the power value does not change within the slice interval of (time C-time a)/5s × 0.6, it is determined that the power value starts to be maintained stable.
5. The method of claim 2, further comprising:
after the controlled device is started, acquiring continuous time slices and current values and power values output by the intelligent socket corresponding to the time slices, wherein the time point of starting the controlled device is Lt1, the acquired continuous time slices are St1 and St2.. Stn, the current values output by the intelligent socket are Pt1 and Pt2.. Ptn, and the power values output by the intelligent socket are Et1 and Et2.. Etn;
after the controlled device is shut down, acquiring continuous time slices and current values and power values output by the smart sockets corresponding to the time slices again, wherein the time point of the controlled device for shutting down is Ltd2, the acquired continuous time slices are Std1 and Std2.. Stdn, the current values output by the smart sockets are Ptd1 and Ptd2.. Ptdn, and the power values output by the smart sockets are Etd1 and Etd2.. Etdn;
normalizing the collected current value and power value to obtain a normalized current value P ’
t＝(Pt-mean(Pt))/(max(Pt)-min(Pt))，P ’ t is a normalized value of the t sampling point in the current data within the preset time length, x (t) is the amplitude of the t sampling point in the frequency spectrum of the vibration data within the preset time length, mean (Pt)) is the average value of the current within the preset time length, max (Pt)) is the maximum value of the current within the preset time length, and min (Pt)) is the minimum value of the current within the preset time length;
normalized power value E ’ t = (Et-mean (Et))/(max (Et) -min (Et)), mean (Et)) is the average value of the power in the preset time length, max (Et)) is the maximum value of the power in the preset time length, and min (Et)) is the minimum value of the power in the preset time length;
and recording the normalized current value and the normalized power value after the controlled equipment is started and shut down every time until a starting and shutting current change curve and a starting and shutting power change curve are obtained.
6. The method of claim 5, further comprising:
establishing a corresponding relation between a power-on and power-off current change curve of the controlled equipment and a life cycle interval of the controlled equipment;
establishing a corresponding relation between a power-on and power-off change curve of the controlled equipment and a life cycle interval of the controlled equipment;
the S4 comprises the following steps: and the remote control terminal determines the current life cycle interval of the controlled equipment by using the electrical data and the corresponding relation between the established change curve and the life cycle interval of the controlled equipment.
7. The method of claim 1, further comprising:
and S0, establishing a binding relationship between the infrared intelligent remote controller and the controlled equipment in the corresponding space, and recording the binding relationship in the remote control terminal, wherein the infrared intelligent remote controller is used for controlling the power utilization state of the controlled equipment in the corresponding space.
8. The method of claim 7, further comprising:
after S1, generating an identifier of a corresponding space, and marking an intelligent socket in a binding relationship with the corresponding space through the identifier;
the remote control terminal periodically detects whether the intelligent socket is on-line or not, and if the intelligent socket is off-line, expected information is generated.
9. A system for remotely monitoring the status of a smart device, comprising: the intelligent socket, the controlled equipment and the remote control terminal;
the remote control terminal is used for storing the binding relationship between an intelligent socket and controlled equipment in a corresponding space, wherein the controlled equipment is installed in the corresponding space and is connected with a power supply through the intelligent socket;
the intelligent socket is used for recording the electrical data of the controlled equipment and uploading the electrical data to the remote control terminal, and the electrical data at least comprises: the intelligent socket supplies the current value to the controlled equipment;
the remote control terminal is used for judging the power utilization state of the controlled equipment through the electrical data, wherein the type of the power utilization state comprises the following steps: and starting up and shutting down.
10. The system for remotely monitoring the state of a smart device according to claim 9, wherein: and the remote control terminal is also used for determining the current life cycle interval of the controlled equipment by utilizing the electrical data.
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| CN202211393852.2A CN115903589A (en) | 2022-11-08 | 2022-11-08 | Method and system for remotely monitoring state of intelligent equipment |
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| CN202211393852.2A CN115903589A (en) | 2022-11-08 | 2022-11-08 | Method and system for remotely monitoring state of intelligent equipment |
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| CN202211393852.2A Pending CN115903589A (en) | 2022-11-08 | 2022-11-08 | Method and system for remotely monitoring state of intelligent equipment |
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