JP3227337U - Electronic device monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device monitoring system capable of saving the cost of monitoring by human power and effectively reducing the cost of maintenance and inspection of electric appliances. An electronic device monitoring system includes a server, a first electronic device, and a first power feature recognition device. The first power characteristic recognition device picks up a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage/current characteristic values of the first electronic device in the first predetermined time zone, and transmits them to the server. The server generates a first electronic device power mode based on these characteristic values, and monitors whether the first electronic device is operating normally based on the first electronic device power mode. [Selection diagram] Figure 1

Description

The present invention relates to an electronic device monitoring system, and more particularly to an electronic device monitoring system that monitors using power characteristic values.

At present, as the number of electronic devices increases and it becomes difficult to grasp the usage status of electronic devices, and especially as the usage period of home electric appliances increases, the user gradually ignores the operating status of these home appliances. However, even wisdom home appliances with many Internet functions do not have ego detection function.

Therefore, how to provide a monitoring system capable of monitoring the operation status of electronic devices has already become one of the important issues in the industry.

In view of the above circumstances, the present invention provides an electronic device monitoring system, a server; electrically connected to a power grid, said power grid providing a first voltage and a first current thereto, and the first voltage and A first electronic device having a variable first current, and a communication connection with the server according to a first communication protocol, the first electronic device being provided between the first electronic device and the power transmission network; A first power feature recognition device for picking up a plurality of voltage time feature values, a plurality of current time feature values, and a plurality of voltage current feature values in a predetermined time zone, wherein the first power feature recognition device is the The plurality of voltage time characteristic values of the first electronic device, the plurality of current time characteristic values, and the plurality of voltage current characteristic values are transmitted to the server, and the server transmits the plurality of voltage time of the first electronic device. A first electronic device power mode based on the characteristic value, the plurality of current-time characteristic values, and the plurality of voltage-current characteristic values, and the server generates the first electronic device power mode based on the first electronic device power mode. Monitor that is working properly.

As described above, the present invention picks up the electronic device power mode of each electronic device by the power feature pickup device, and monitors the operation of each electronic device based on the electronic device power mode of each electronic device. As a result, not only the cost of manual monitoring can be saved, but also the cost of maintenance and inspection of electric appliances can be effectively reduced.

In order to make the aforementioned features and advantages of the present invention more comprehensible, a particularly preferred embodiment will be given below and described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of an electronic device monitoring system according to an embodiment of the present invention. FIG. 2 is another schematic diagram of the electronic device monitoring system according to the embodiment of the present invention. FIG. 3 is another schematic diagram of the electronic device monitoring system in the embodiment according to the present invention. FIG. 4A is a schematic diagram of a first power feature recognition apparatus according to an embodiment of the present invention. FIG. 4B is another schematic view of the first power feature recognition apparatus according to the embodiment of the present invention. FIG. 5 is a flowchart of an electronic device monitoring method according to an embodiment of the present invention.

Various exemplary embodiments are described more fully below with reference to the accompanying drawings, and some exemplary embodiments are shown in the accompanying drawings. However, the concepts of the present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments described herein. To be sure, these exemplary embodiments are intended to provide a more detailed and complete understanding of the present invention and to convey the category of concepts of the present invention to those skilled in the art. .. In each drawing, the size and relative size of layers and sections are exaggerated for clarity. Similar numbers always refer to similar elements.

It should be understood that although various terms may be used herein to describe various elements using terms such as first, second, third, etc., these elements are not limited to these terms. These terms are used to distinguish one element from the other. Therefore, even if the first element described below is called the second element, it does not deviate from the teaching of the concept of the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Hereinafter, at least one embodiment will be used and an electronic device monitoring system will be described with reference to the drawings, but the embodiments described below are not intended to limit the disclosure of the present invention. In the following description, if an electronic element with two or more end points has a special mark, the pin mark is the description of the pin, and if there is no special mark, the electronic elements at both end points provided in the lateral direction are The left end point is the first end, and the right end point is the second end. If it is an electronic element of both end points provided vertically, the upper end point is the first end and the lower end point is the second end.
[Embodiment of the electronic device monitoring system of the present invention]

Referring to FIG. 1, FIG. 1 is a schematic diagram of a signal transmission system according to an embodiment of the present invention.

In this embodiment, the electronic device monitoring system 1 includes a first power feature recognition device 11, a first electronic device 12A, and a server 19.

Among them, the first electronic device 12A is electrically connected to the power transmission network 10. The power grid 10 provides the first electronic device 12A with a first voltage and a first current. The first voltage and the first current are variable. Among them, the first voltage and the first current are an alternating voltage and an alternating current, respectively. In the first electronic device 12A, the voltage and current during operation are not fixed values, and the first voltage and the first current change due to load change or mode switching, so the first voltage and the first current are variable. .. In this embodiment, the power grid 10 provides an alternating voltage to the first electronic device 12A.

The first power feature recognition device 11 is provided between the first electronic device 12A and the power transmission network 10. That is, the first power feature recognition device 11 is provided at one end of the power supply wire rod from which the first electronic device 12A acquires power.

The first power characteristic recognition device 11 is for picking up a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage/current characteristic values in the first predetermined time zone of the first electronic device 12A. .. That is, the first power feature recognition device 11 picks up all the voltage/current feature values in the first predetermined time period after the first electronic device 12A connects to the power transmission network to acquire the power source, and for example, for 10 minutes or 20 minutes. It's a minute. In the present embodiment, the first predetermined time zone differs depending on the electronic device, and the present invention is not limited.

The first power feature recognition device 11 communicates with the server 19 using the first communication protocol. That is, the first power characteristic recognition device 11 transmits the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage/current characteristic values of the first electronic device 12A to the server 19.

In the present embodiment, the voltage time characteristic value, the current time characteristic, and the voltage current characteristic value are the voltage maximum value, the voltage minimum value, the voltage average value, the current maximum value, the current minimum value, the current average value, the surge quantity, and the different loads. It includes changes in voltage and current, changes in voltage and current when switching loads, and so on. In the present invention, the power characteristic value of the electronic device may be adjusted and designed according to actual demand, and the present invention is not limited.

Subsequently, the server 19 generates the first electronic device power mode based on the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values of the first electronic device 12A. In the present embodiment, the first electronic device power mode is indicated by a graphic or a group of numerical values, and each term parameter in the normal operation of the first electronic device 12A is also indicated.

Thereafter, the server 19 monitors whether the first electronic device 112A is operating normally based on the first electronic device power mode.

The first power feature recognition device 11 continuously records and picks up the power feature value of the first electronic device 12A, and continuously transmits the recorded and picked up power feature value of the first electronic device 12A to the server 19. .. The server 19 can continuously compare the differences in power characteristics of the first electronic device 12A at different times, and if there is a significant difference, the server 19 informs the user of the first electronic device 12A through the network. An anomaly may be reported, thereby notifying the user that the first electronic device 12A may have some trouble.

In the present embodiment, the number of power feature recognition devices may be adjusted and designed according to the actual demand, and the present invention is not limited. The number of electronic devices may be adjusted and designed according to actual demand, and the present invention is not limited.

In the present embodiment, the first electronic device 12A includes a refrigerator, a television, a washing machine, a blower, a charger, a notebook computer, a desktop computer, an LED lighting device, etc., that is, the first electronic device 12A in the present invention. The present invention is not limited to any electronic device.

Referring to FIG. 2, FIG. 2 is another schematic diagram of the electronic device monitoring system in the embodiment according to the present invention.

In FIG. 2, the electronic device monitoring system 1 includes a second electronic device 12B, a third electronic device 12C, and a fourth electronic device 12D in addition to the first electronic device 12A. The second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D are electrically connected to the power transmission network 10 by the first power feature recognition device 11.

In the present embodiment, the first power feature recognition device 11 may pick up the power feature value of the first electronic device 12A or the power feature value of the second electronic device 12B.

That is, the first power feature recognition device 11 causes the second electronic device 12B to have a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage/current characteristic values in the second predetermined time zone, and the third electronic device 12C. A plurality of voltage time characteristic values in a third predetermined time zone, a plurality of current time characteristic values, and a plurality of voltage current characteristic values, a plurality of voltage time characteristic values in a fourth predetermined time zone of the second electronic device 12D, Multiple current-time feature values and multiple voltage-current feature values can be picked up.

The first power feature recognition device 11 uses the server 19 to obtain a plurality of voltage-time feature values, a plurality of current-time feature values, and a plurality of voltage-current feature values of the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D. Also transmitted.

The server 19 generates the second electronic device power mode based on the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values of the second electronic device 12B.

Then, the server 19 determines each of the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D based on the plurality of voltage-time characteristic values, the plurality of current-time characteristic values, and the plurality of voltage-current characteristic values. A second electronic device power mode, a third electronic device power mode, and a fourth electronic device power mode are generated. In the present embodiment, the first electronic device power mode, the second electronic device power mode, the third electronic device power mode, and the fourth electronic device power mode are indicated by a graphic or a group of numerical values. The respective term parameters of the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D during normal operation are also shown.

In the present embodiment, the server 19 further includes a voltage-frequency spectrum analysis, a current-frequency spectrum analysis, or a voltage-current-frequency multidimensional analysis based on the received characteristic values of the respective terms of the first electronic device 12A. You may switch to spectrum analysis. It may be adjusted and designed according to the actual demand, and the present invention is not limited.

In the present embodiment, the first electronic device power mode, the second electronic device power mode, the third electronic device power mode, and the fourth electronic device power mode have a plurality of voltage frequency characteristic values and currents in voltage-frequency spectrum analysis. It may be generated based on a plurality of current frequency characteristic values in the frequency spectrum analysis or a plurality of voltage/current frequency characteristic values in the voltage/current-frequency multidimensional spectrum analysis.

That is, the first electronic device power mode, the second electronic device power mode, the third electronic device power mode, and the fourth electronic device power mode are the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, and the fourth electronic device power mode. Determined by a plurality of voltage time characteristic values, a plurality of current time characteristic values, a plurality of voltage current characteristic values, a plurality of voltage frequency characteristic values, a plurality of current frequency characteristic values, and a plurality of voltage current frequency characteristic values of the electronic device 12D. Good.

In another embodiment, the first electronic device power mode, the second electronic device power mode, the third electronic device power mode, and the fourth electronic device power mode are the first electronic device 12A, the second electronic device 12B, and the third electronic device. 12C, a plurality of voltage time characteristic values, a plurality of current time characteristic values, a plurality of voltage current characteristic values, a plurality of voltage frequency characteristic values, a plurality of current frequency characteristic values, and a plurality of voltage current frequency characteristics of the fourth electronic device 12D. There is no limitation to the invention, which may be determined by one of the values or a combination of the above mentioned feature values.

Among them, the server 19 determines the first electronic device power mode, the second electronic device power mode, the third electronic device power mode, and the fourth electronic device power mode based on the first electronic device 12A, the second electronic device 12B, and the second electronic device power mode, respectively. It is monitored whether the third electronic device 12C and the fourth electronic device 12D are operating normally.

The first power characteristic recognizing device 11 continuously records and picks up the power characteristic values of the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D, and then the recorded and picked up. The power characteristic values of the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D are continuously transmitted to the server 19. The server 19 can continuously compare whether the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D have different power characteristics at different times, respectively, If there is a significant difference, the server 19 may report the abnormality of the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, or the fourth electronic device 12D to the user via the network, whereby the first electronic device 12A, the second electronic device 12C, or the fourth electronic device 12D is detected. The user is notified that the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, or the fourth electronic device 12D may have some trouble.

Referring to FIG. 3, FIG. 3 is another schematic diagram of the electronic device monitoring system in the embodiment according to the present invention.

In the present embodiment, the electronic device monitoring system 1′ includes a first power feature recognition device 11, a second power feature recognition device 13, a third power feature recognition device 15, a fourth power feature recognition device 17, a first electronic device 12A, It includes a second electronic device 12B, a third electronic device 12C, and a fourth electronic device 12D.

Among them, the first electronic device 12A, the second electronic device 12B, the third electronic device 12C, and the fourth electronic device 12D are the first power feature recognition device 11, the second power feature recognition device 13, and the third power feature, respectively. The recognition device 15 and the fourth power feature recognition device 17 electrically connect to the power transmission network 10.

In the present embodiment, the first power feature recognition device 11, the second power feature recognition device 13, the third power feature recognition device 15, and the fourth power feature recognition device 17 are respectively the first communication protocol, the second communication protocol, and the second communication protocol. Communication connection is established with the server 19 by the third communication protocol and the fourth communication protocol. Among them, the first communication protocol, the second communication protocol, the third communication protocol, and the fourth communication protocol may be the same communication protocol or different communication protocols, and the present invention is not limited. In the present embodiment, the first communication protocol, the second communication protocol, the third communication protocol, and the fourth communication protocol are the Bluetooth communication protocol, the Zigbee communication protocol (Zigbee), the LoRa communication protocol, the Sigfox communication protocol, and the wireless fidelity communication protocol ( WiFi), 4th generation mobile communication technology communication protocol (4G), 5th generation mobile communication technology communication protocol (5G), which may be adjusted and designed according to actual demand, and the present invention is not limited thereto. Absent.

In the present embodiment, the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values at the respective predetermined times of the plurality of electronic devices to which the plurality of power characteristic recognition devices respectively correspond are To pick up. Then, these characteristic values are transmitted to the server 19. Then, the server 19 generates the corresponding first electronic device power mode, second electronic device power mode, third electronic device power mode, and fourth electronic device power mode. It is determined whether the plurality of electronic devices are operating normally based on the plurality of power modes.

4A and 4B, FIG. 4A is a schematic diagram of a first power feature recognition apparatus according to an embodiment of the present invention. FIG. 4B is another schematic view of the first power feature recognition apparatus according to the embodiment of the present invention. Hereinafter, only the first power feature recognizing device 11 will be taken as an example, and the structure and function of the other power feature recognizing devices are the same as those of the first power feature recognizing device 11.

In the present embodiment, the first power feature recognition device 11 includes a processing module 111, a power feature pickup module 112, a storage module 113, a power supply module 114, and a communication module 115.

The processing module 111 electrically connects the power feature pickup module 112, the storage module 113, the power supply module 114, and the communication module 115 therein.

A power feature pick-up module 11 electrically connects to the processing module and picks up a plurality of voltage-time feature values, a plurality of current-time feature values, and a plurality of voltage-current feature values of the connected electronic device or devices. ..

The power supply module 114 converts an external voltage into an internal voltage and provides the internal voltage to the processing module 111, the storage module 113, and the power feature pickup module 112.

The processing module 111 provides the server 19 with a plurality of voltage-time characteristic values, a plurality of current-time characteristic values, and a plurality of voltage-current characteristic values of one or a plurality of electronic devices connected by the communication module 115.

In this embodiment, as shown in FIG. 4B, the first feature recognition device 11 is a socket unit that can be inserted and removed. In another embodiment, the first feature recognition device 11 may be designed in other types, for example, it may be provided in a control switch in the main switch of the power circuit, and may be adjusted/designed according to actual demand. You can go, the invention is not limited.

Referring to FIG. 5, FIG. 5 is a flowchart of an electronic device monitoring method according to an embodiment of the present invention.

The electronic device monitoring method according to the present embodiment is applied to the electronic device monitoring system described above, and therefore, the structure and function of the related device described above need not be repeatedly described in the present embodiment. Further, the electronic device monitoring method according to the present embodiment is applied to monitoring a plurality of electronic devices provided in a predetermined area (not shown), that is, a predetermined area where the same power circuit is present.

In this embodiment, the electronic device monitoring method includes the following steps:

Picking up a plurality of voltage-time characteristic values, a plurality of current-time characteristic values, and a plurality of voltage-current characteristic values of the first electronic device and the second electronic device (step S110),

A plurality of voltage time characteristic values of the first electronic device, a plurality of current time characteristic values, and a plurality of voltage current characteristic values, and a plurality of voltage time characteristic values of the second electronic device, a plurality of current time characteristic values, and a plurality of current time characteristic values of the second electronic device. The voltage/current characteristic value is transmitted to the server (step S120),

A plurality of voltage time characteristic values of the first electronic device, a plurality of current time characteristic values, and a plurality of voltage current characteristic values, and a plurality of voltage time characteristic values of the second electronic device, a plurality of current time characteristic values, and a plurality of current time characteristic values of the second electronic device. Generating a first electronic device power mode and a second electronic device power mode, respectively, based on the voltage current characteristic value (step S130), and

Whether the first electronic device and the second electronic device are operating normally is monitored based on the first electronic device power mode and the second electronic device power mode (step S140).

In step S110, the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values of the first electronic device and the second electronic device are picked up by the single first power characteristic pickup device 11. Alternatively, the first power characteristic pickup device 11 and the second power characteristic pickup device 13 respectively determine a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage current characteristic values of the first electronic device and the second electronic device, respectively. To pick up.

In step S120, a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage current characteristic values of the first electronic device and the second electronic device may be picked up by the single first power characteristic pickup device 11. For example, the first power feature pickup device 11 communicates with the server 19 according to the first communication protocol to transmit data.

If the first power characteristic pick-up device 11 and the second power characteristic pick-up device 13 respectively determine a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage current characteristic values of the first electronic device and the second electronic device, respectively. If picked up, the first power characteristic pickup device 11 and the second power characteristic pickup device 13 communicate with the server 19 by the first communication protocol and the second communication protocol, respectively, and transmit data.

In step S130, the server 19 determines whether the first electronic device power mode and the second electronic device power mode are based on the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values of the first electronic device and the second electronic device. An electronic device power mode is generated and an electronic device power mode database is created. The first electronic device power mode and the second electronic device power mode are stored in the electronic device power mode database.

In step S140, the power feature recognition apparatus continuously records and picks up the power feature values of the first electronic device 12A and the second electronic device 12B, and the recorded and picked-up first electronic device 12A and second electronic device 12B. The power characteristic values of the above are continuously transmitted to the server 19. The server 19 can continuously compare whether the power characteristics of the first electronic device 12A and the second electronic device 12B are different at different times. Abnormalities of the electronic device 12A and the second electronic device 12B may be reported to the user, thereby notifying the user that the first electronic device 12A and the second electronic device 12B may have some trouble. That is, the server 19 continues to receive the received power characteristic values of the first electronic device 12A and the second electronic device 12B and the first electronic device power mode and the second electronic device power mode stored in the electronic device power mode database. The comparison can be made and the user can be notified of the obtained comparison result.

The electronic device power mode database also stores the names and model numbers of electronic devices corresponding to the first electronic device 12A and the second electronic device 12B.
[Industrial Applicability of Examples]

As described above, the present invention picks up the electronic device power mode of each electronic device by the power feature pickup device, and monitors the operation of each electronic device based on the electronic device power mode of each electronic device, As a result, not only the cost of manual monitoring can be saved, but also the cost of maintenance and inspection of electric appliances can be effectively reduced.

The above is only an embodiment of the present invention and does not limit the scope of the claims of the present invention.

1, 1'Electronic Device Monitoring System 10 Power Transmission Network 11 First Power Feature Recognition Device 12A First Electronic Device 19 Server 12B Second Electronic Device 12C Third Electronic Device 12D Fourth Electronic Device 13 Second Power Feature Recognition Device 15 Third Power feature recognition device 17 Fourth power feature recognition device 111 Processing module 112 Power feature pickup module 113 Storage module 114 Power supply module 115 Communication module S110-S140 Step

Claims (5)

An electronic device monitoring system,
Server,
A first electronic device electrically connected to the grid and provided with a variable first voltage and first current from the grid;
A plurality of voltage-time characteristic values in a first predetermined time zone of the first electronic device, which are provided between the first electronic device and the power transmission network and are connected to communicate with the server according to a first communication protocol, A current-time feature value, and a first power feature recognition device for picking up a plurality of voltage-current feature values,
The first power characteristic recognition device transmits the plurality of voltage time characteristic values of the first electronic device, the plurality of current time characteristic values, and the plurality of voltage current characteristic values to the server, and the server transmits the Generating a first electronic device power mode based on the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values of one electronic device,
An electronic device monitoring system in which the server monitors whether the first electronic device is operating normally based on the first electronic device power mode. Further comprising a second electronic device electrically connected to the power grid via the first power feature recognition device,
The first power characteristic recognition device is used to pick up a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage current characteristic values of the second electronic device in a second predetermined time period. , The first power feature recognition device transmits the plurality of voltage time feature values of the second electronic device, the plurality of current time feature values, and the plurality of voltage current feature values to the server, and the server Generating a second electronic device power mode based on the plurality of voltage time characteristic values of the second electronic device, the plurality of current time characteristic values, and the plurality of voltage current characteristic values;
The electronic device monitoring system according to claim 1, wherein the server monitors whether the second electronic device is operating normally based on the second electronic device power mode. A second electronic device electrically connected to the grid and provided with a variable second voltage and second current from the grid;
A plurality of voltage/time characteristic values in a second predetermined time zone of the second electronic device, which are provided between the second electronic device and the power transmission network, are connected to communicate with the server according to a second communication protocol. A second power feature recognition device for picking up a current-time feature value and a plurality of voltage-current feature values;
Further including,
The second power feature recognition device transmits the plurality of voltage time feature values of the second electronic device, the plurality of current time feature values, and the plurality of voltage current feature values to the server, and the server receives the Generating a second electronic device power mode based on the plurality of voltage time characteristic values, the plurality of current time characteristic values, and the plurality of voltage current characteristic values of the two electronic devices;
The electronic device monitoring system according to claim 1, wherein the server monitors whether the second electronic device is operating normally based on the second electronic device power mode. The first power feature recognition device,
A processing module,
A storage module electrically connecting the processing module and a communication module electrically connecting the processing module, the processing module electrically connected, a plurality of voltage time characteristic values of the first electronic device, a plurality of current time A feature value and a power feature pickup module for picking up a plurality of voltage current feature values;
A power supply module for electrically connecting the processing module, converting an external voltage to an internal voltage, and providing the internal voltage to the processing module, the storage module, and the power feature pickup module;
The processing module provides a plurality of voltage time characteristic values, a plurality of current time characteristic values, and a plurality of voltage current characteristic values of the first electronic device to the server via the communication module. Electronic device monitoring system. The first power characteristic recognition device transmits the plurality of voltage time characteristic values of the first electronic device, the plurality of current time characteristic values, and the plurality of voltage current characteristic values to the server, and the server A voltage-frequency spectrum analysis, a current-frequency spectrum analysis, or a voltage/frequency spectrum analysis based on the plurality of voltage-time characteristic values, the plurality of current-time characteristic values, and the plurality of voltage-current characteristic values of the first electronic device. The electronic device monitoring system according to claim 1, wherein the first electronic device power mode is generated by switching the current-frequency multi-dimensional spectrum analysis.

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