CN117147980A - Electromagnetic field monitoring device, electromagnetic field monitoring method, electromagnetic sensor chip and electronic equipment - Google Patents
Electromagnetic field monitoring device, electromagnetic field monitoring method, electromagnetic sensor chip and electronic equipment Download PDFInfo
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- CN117147980A CN117147980A CN202311267118.6A CN202311267118A CN117147980A CN 117147980 A CN117147980 A CN 117147980A CN 202311267118 A CN202311267118 A CN 202311267118A CN 117147980 A CN117147980 A CN 117147980A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 39
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
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Abstract
The invention discloses an electromagnetic field monitoring device, a monitoring method, an electromagnetic sensor chip and electronic equipment, wherein the device comprises: the antenna, a plurality of detection circuits, an analog-to-digital conversion circuit, a control circuit and a memory; the detection circuits are used for detecting electromagnetic wave signals with different frequency bands received by the antenna; the analog-to-digital conversion circuit is respectively connected with the plurality of detection circuits and is used for carrying out analog-to-digital conversion on signals output by the plurality of detection circuits after detection to obtain acquisition signals; the control circuit is respectively connected with the memory and the analog-to-digital conversion circuit and is used for determining whether the antenna receives the electromagnetic wave interference signal according to the acquired signal, and when the antenna is determined to receive the electromagnetic wave interference signal, the triggering device enters a monitoring mode, judges the electromagnetic interference power level according to the acquired signal, generates an interference event according to a judging result and stores the interference event into the memory. The device is easy to realize, has low cost and wide application prospect.
Description
Technical Field
The present invention relates to the field of electromagnetic field monitoring technologies, and in particular, to an electromagnetic field monitoring device, an electromagnetic field monitoring method, an electromagnetic sensor chip, and an electronic device.
Background
Electromagnetic shielding and electromagnetic compatibility are always research hotspots of students at home and abroad, electromagnetic shielding is one of important means for solving the problem of electromagnetic compatibility, and most of the problems of electromagnetic compatibility can be solved through electromagnetic shielding. At home and abroad scholars also provide solutions from multiple dimensions of materials, shielding cavities, circuit designs and the like, and electrostatic field shielding and constant magnetic field shielding are ideal at present, but are not ideal for shielding electromagnetic waves. The reason is that various apertures inevitably exist in shielding shells of various electronic devices, such as holes for ventilation and heat dissipation, communication and power interfaces, device buttons and instrument lamps, and the apertures cause electromagnetic leakage, so that the shielding effectiveness is reduced.
The invention does not solve the problem from the electromagnetic wave shielding angle, but designs an electromagnetic field monitoring sensor which is applied to equipment needing electromagnetic monitoring, and achieves the purposes of early warning and analysis after equipment failure by monitoring the electromagnetic field intensity of the surrounding environment of the equipment.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the object of the present invention is to propose an electromagnetic field monitoring device, a monitoring method, an electromagnetic sensor chip and an electronic apparatus. The device is easy to realize, has low cost and wide application prospect.
To achieve the above object, an embodiment of a first aspect of the present invention provides an electromagnetic field monitoring device, including: the antenna, a plurality of detection circuits, an analog-to-digital conversion circuit, a control circuit and a memory; the detection circuits are used for detecting electromagnetic wave signals with different frequency bands received by the antenna; the analog-to-digital conversion circuit is respectively connected with the detection circuits and is used for performing analog-to-digital conversion on signals output by the detection circuits after detection to obtain acquisition signals; the control circuit is respectively connected with the memory and the analog-to-digital conversion circuit, and is used for determining whether the antenna receives an electromagnetic wave interference signal according to the acquisition signal, triggering the device to enter a monitoring mode when the antenna receives the electromagnetic wave interference signal, judging the electromagnetic interference power level according to the acquisition signal, generating an interference event according to a judging result, and storing the interference event into the memory.
In addition, the electromagnetic field monitoring device according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the apparatus further comprises: the threshold comparison circuit is respectively connected with the control circuit and the detection circuits, and is used for comparing the threshold values of signals output by the detection circuits after detection and sending the comparison result to the control circuit; the control circuit is further used for determining whether the antenna receives an electromagnetic wave interference signal according to the comparison result.
According to one embodiment of the invention, the apparatus further comprises: the communication interface circuit is respectively connected with the control circuit and the memory; the control circuit is further used for sending corresponding data stored in the memory to external equipment through the communication interface circuit when an external reading instruction is received through the communication interface circuit.
According to one embodiment of the invention, the apparatus further comprises: the IO interface circuit is connected with the control circuit; the control circuit is further configured to receive the external reading instruction and the external testing instruction through the IO interface circuit, trigger the device to enter a testing mode when receiving the external testing instruction, control the analog-to-digital conversion circuit to collect an external electromagnetic field in real time, and send an obtained collection signal to the external device through the communication interface circuit.
According to one embodiment of the invention, the apparatus further comprises: and the clock oscillation circuit is respectively connected with the control circuit, the memory and the communication interface circuit and is used for generating clock signals and respectively providing the clock signals to the control circuit, the memory and the communication interface circuit.
According to one embodiment of the invention, the electromagnetic field monitoring system further comprises: and the power supply circuit is respectively connected with the analog-to-digital conversion circuit, the threshold comparison circuit, the control circuit and the memory and is used for respectively supplying power to the analog-to-digital conversion circuit, the threshold comparison circuit, the control circuit and the memory.
According to one embodiment of the invention, the apparatus further comprises: and the power-on reset circuit is connected with the analog-to-digital conversion circuit and is used for carrying out power-on reset control on the device through the analog-to-digital conversion circuit and monitoring the working voltage of the device.
According to one embodiment of the invention, the apparatus further comprises: and the signal isolation circuit is used for isolating interference signals introduced by the external equipment through the communication interface circuit.
According to one embodiment of the present invention, when the control circuit determines the electromagnetic interference power level according to the acquired signal and generates an interference event according to the determination result, the control circuit is configured to: when the electromagnetic interference power is determined to be larger than a preset power threshold according to the acquired signals, a first type of interference event is generated, and an electricity stealing alarm signal is generated; and generating a second type of interference event when the electromagnetic interference power is less than or equal to the preset power threshold value according to the acquired signals.
According to one embodiment of the invention, the antenna is an external antenna or an internal antenna.
In order to achieve the above object, a second aspect of the present invention provides an electromagnetic sensor chip, which includes the electromagnetic field monitoring device.
To achieve the above object, an embodiment of a third aspect of the present invention provides an electronic device including the electromagnetic sensor chip described above.
To achieve the above object, a fourth aspect of the present invention provides an electromagnetic field monitoring method, which is used in an electromagnetic field monitoring device, the device including an antenna, a plurality of detection circuits, and an analog-to-digital conversion circuit, the method including: receiving electromagnetic wave signals of a plurality of different frequency bands through the antenna, and detecting the electromagnetic wave signals of the different frequency bands through the detection circuits respectively; analog-to-digital conversion is carried out on signals output after detection by the detection circuits, so as to obtain acquisition signals; and determining whether the antenna receives an electromagnetic wave interference signal or not according to the acquisition signal, triggering the device to enter a monitoring mode when the antenna receives the electromagnetic wave interference signal, judging the electromagnetic interference power level according to the acquisition signal, generating an interference event according to a judging result, and storing the interference event.
In addition, the electromagnetic field monitoring method according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the apparatus further comprises a threshold comparison circuit, the method further comprising: the threshold comparison circuit is used for performing threshold comparison on signals output by the detection circuits after detection to obtain comparison results; and determining whether the antenna receives an electromagnetic wave interference signal according to the comparison result.
According to one embodiment of the present invention, the determining the electromagnetic interference power level according to the acquired signal and generating the interference event according to the determination result includes: if the electromagnetic interference power is determined to be larger than a preset power threshold according to the acquired signals, generating a first type of interference event and generating an electricity stealing alarm signal; and if the electromagnetic interference power is less than or equal to the preset power threshold value according to the acquired signals, generating a second type of interference event.
The electromagnetic field monitoring device, the electromagnetic sensor chip and the electronic equipment provided by the embodiment of the invention are easy to realize, have low cost and have wide application prospects.
Drawings
FIG. 1 is a block diagram of an electromagnetic field monitoring apparatus according to one embodiment of the present invention;
FIG. 2 is a block diagram of an electromagnetic field monitoring apparatus according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of the connection of an external device to an electromagnetic field monitoring apparatus according to one embodiment of the present invention;
FIG. 4 is a schematic diagram showing the connection of an external device to an electromagnetic field monitoring apparatus according to another embodiment of the present invention;
FIG. 5 is a block diagram of the structure of an electromagnetic sensor chip according to one embodiment of the present invention;
FIG. 6 is a block diagram of an electronic device according to one embodiment of the invention;
fig. 7 is a flow chart of a method of electromagnetic field monitoring in accordance with one embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
An electromagnetic field monitoring apparatus, a monitoring method, an electromagnetic sensor chip, and an electronic device according to embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a block diagram showing the structure of an electromagnetic field monitoring apparatus according to an embodiment of the present invention.
As shown in fig. 1, the electromagnetic field monitoring apparatus 100 includes: an antenna 101, a plurality of detection circuits 102, an analog-to-digital conversion circuit 103, a control circuit 104, and a memory 105; a plurality of detection circuits 102 for detecting electromagnetic wave signals of a plurality of different frequency bands received by the antenna 101; the analog-to-digital conversion circuit 103 is respectively connected with the plurality of detection circuits 102 and is used for performing analog-to-digital conversion on signals output by the detection circuits 102 after detection to obtain acquisition signals; the control circuit 104 is respectively connected with the memory 105 and the analog-to-digital conversion circuit 103, and is configured to determine whether the antenna 101 receives the electromagnetic interference signal according to the acquired signal, trigger the electromagnetic field monitoring device 100 to enter a monitoring mode when determining that the antenna 101 receives the electromagnetic interference signal, determine the electromagnetic interference power level according to the acquired signal, generate an interference event according to the determination result, and store the interference event in the memory 105.
Specifically, the control circuit 104 is configured to perform read-write control on the memory 105, the control circuit 104 may send an alarm signal according to the electromagnetic interference power level, and the operation modes of the electromagnetic field monitoring apparatus 100 may include: a standby mode and a monitoring mode; wherein, the electromagnetic field monitoring device 100 is in a standby mode under the condition of no electromagnetic wave signal, only a small part of circuits work to keep a low power consumption state, and when the electromagnetic wave signal exists, the electromagnetic field monitoring device 100 enters a monitoring mode.
The electromagnetic field monitoring device provided by the embodiment of the invention is easy to realize, low in cost and wide in application prospect.
In some embodiments, the control circuit 104 is configured to, when determining the electromagnetic interference power level according to the acquired signal and generating the interference event according to the determination result: when the electromagnetic interference power is determined to be larger than a preset power threshold according to the acquired signals, a first type of interference event is generated, and an electricity stealing alarm signal is generated; and generating a second type of interference event when the electromagnetic interference power is less than or equal to a preset power threshold value according to the acquired signals.
In some embodiments, as shown in fig. 2, the electromagnetic field monitoring apparatus 100 further includes: a communication interface circuit 106 connected to the control circuit 104 and the memory 105, respectively; the control circuit 104 is further configured to send corresponding data stored in the memory 105 to an external device through the communication interface circuit 106 when receiving an external reading instruction through the communication interface circuit 106.
Specifically, when the antenna 101 is an external antenna, as shown in fig. 3, and when the antenna 101 is an internal antenna, as shown in fig. 4, the external device is connected to the electromagnetic field monitoring apparatus 100 through the communication interface circuit 106 to receive a control signal (external reading instruction) of the external device, and the interference event record stored in the memory 105 is transmitted to the external device. The protocols supported by the communication interface circuit 106 may include: I2C (Inter-Integrated Circuit, integrated circuit interconnect) protocol, SPI (Serial Peripheral Interface ) protocol, and UART (Universal Asynchronous Receiver, universal asynchronous receiver/transmitter) protocol.
In some embodiments, as shown in fig. 2, the electromagnetic field monitoring apparatus 100 further includes: an IO interface circuit 107 connected to the control circuit 104; the control circuit 104 is further configured to receive an external reading instruction and an external test instruction through the IO interface circuit 107, trigger the electromagnetic field monitoring device 100 to enter a test mode when receiving the external test instruction, control the analog-to-digital conversion circuit 103 to collect an external electromagnetic field in real time, and send a collected signal to an external device through the communication interface circuit 106. The IO interface circuit 107 may also be used for input and output of analog signals and digital signals.
Specifically, the operation mode of the electromagnetic field monitoring apparatus 100 may further include a test mode, and the electromagnetic field monitoring apparatus 100 collects an external electromagnetic wave signal in real time using the test mode to test the collected electromagnetic field strength and determine a preset power threshold.
In some embodiments, as shown in fig. 2, the electromagnetic field monitoring apparatus 100 further includes: the threshold value comparing circuit 108 is connected to the control circuit 104 and the plurality of detecting circuits 102, and is configured to perform threshold value comparison on signals output after the detection by the plurality of detecting circuits 102, and send a comparison result to the control circuit 104; wherein the control circuit 104 is further configured to determine whether the antenna 101 receives the electromagnetic interference signal according to the comparison result.
Specifically, when the signal intensities outputted after the detection by the plurality of detection circuits 102 are greater than or equal to a preset intensity threshold, the control circuit 104 determines that the antenna 101 receives the electromagnetic wave interference signal, generates a first type of interference event, and generates a power theft alarm signal; when the signal intensity outputted after the detection by the plurality of detection circuits 102 is smaller than the preset intensity threshold, the control circuit 104 determines that the antenna 101 does not receive the electromagnetic wave interference signal, and generates a second type of interference event. The control circuit 104 sends the disturbance event to the memory 105.
In some embodiments, as shown in fig. 2, the electromagnetic field monitoring apparatus 100 further includes: the clock oscillation circuit 109 is connected to the control circuit 104, the memory 105, and the communication interface circuit 106, respectively, and generates a clock signal and supplies the clock signal to the control circuit 104, the memory 105, and the communication interface circuit 106, respectively.
In some embodiments, electromagnetic field monitoring apparatus 100 further comprises: the power supply circuit 110 is connected to the analog-to-digital conversion circuit 103, the threshold comparison circuit 108, the control circuit 104, and the memory 105, and is configured to supply power to the analog-to-digital conversion circuit 103, the threshold comparison circuit 108, the control circuit 104, and the memory 105, respectively.
In some embodiments, as shown in fig. 2, the electromagnetic field monitoring apparatus 100 further includes: the power-on reset circuit 111 is connected with the analog-to-digital conversion circuit 103, and is used for performing power-on reset control on the device and monitoring the working voltage of the electromagnetic field monitoring device 100 through the analog-to-digital conversion circuit 103.
In some embodiments, as shown in fig. 2, the electromagnetic field monitoring apparatus 100 further includes: the signal isolation circuit 112 is used for isolating interference signals introduced by external devices through the communication interface circuit 106.
In summary, in the electromagnetic field monitoring device according to the embodiment of the present invention, the detection circuit performs filtering processing on the received signal, and the processed signal is simultaneously output to the analog-to-digital conversion circuit and the threshold comparison circuit, where the analog-to-digital conversion circuit converts the received analog signal into a digital signal and outputs the digital signal to the control circuit, and the threshold comparison circuit also compares the received signal with the preset intensity threshold and outputs the judgment signal to the control circuit. The control circuit recognizes the interference signal according to a preset control program, generates an interference event, and sends the interference event to the memory for storage. The device is convenient to apply and low in cost, realizes the miniaturized design of electromagnetic field monitoring equipment, and has wide application prospect.
Fig. 5 is a block diagram of the structure of an electromagnetic sensor chip according to an embodiment of the present invention.
As shown in fig. 5, the electromagnetic sensor chip 500 includes the electromagnetic field monitoring apparatus 100 described above.
Fig. 6 is a block diagram of an electronic device according to an embodiment of the invention.
As shown in fig. 5, the electronic device 600 includes the electromagnetic sensor chip 500 described above.
Fig. 7 is a flow chart of a method of electromagnetic field monitoring in accordance with one embodiment of the present invention.
As shown in fig. 7, the electromagnetic field monitoring method is used for an electromagnetic field monitoring device, the device includes an antenna, a plurality of detection circuits, and an analog-to-digital conversion circuit, and the method includes:
s71, receiving electromagnetic wave signals of a plurality of different frequency bands through an antenna, and detecting the electromagnetic wave signals of the different frequency bands through a plurality of detection circuits.
S72, performing analog-to-digital conversion on signals output by the detection circuits after detection to obtain acquisition signals.
S73, determining whether the antenna receives the electromagnetic wave interference signal according to the acquired signal, and when the antenna receives the electromagnetic wave interference signal, the triggering device enters a monitoring mode, judging the electromagnetic interference power level according to the acquired signal, generating an interference event according to a judging result, and storing the interference event.
In some embodiments, the apparatus further comprises a threshold comparison circuit, the method further comprising: the threshold comparison circuit is used for carrying out threshold comparison on signals output after detection of the detection circuits to obtain comparison results; and determining whether the antenna receives the electromagnetic wave interference signal according to the comparison result.
In some embodiments, determining the electromagnetic interference power level according to the acquired signal and generating the interference event according to the determination result includes: if the electromagnetic interference power is determined to be greater than a preset power threshold according to the acquired signals, generating a first type of interference event and generating an electricity stealing alarm signal; and if the electromagnetic interference power is less than or equal to the preset power threshold value according to the acquired signals, generating a second type of interference event.
It should be noted that, for other specific implementation manners of the electromagnetic field monitoring method according to the embodiments of the present invention, reference may be made to specific implementation manners of the electromagnetic field monitoring device according to the above-mentioned embodiments of the present invention.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (15)
1. An electromagnetic field monitoring device, the device comprising: the antenna, a plurality of detection circuits, an analog-to-digital conversion circuit, a control circuit and a memory; wherein,
the detection circuits are used for detecting electromagnetic wave signals with different frequency bands received by the antenna;
the analog-to-digital conversion circuit is respectively connected with the detection circuits and is used for performing analog-to-digital conversion on signals output by the detection circuits after detection to obtain acquisition signals;
the control circuit is respectively connected with the memory and the analog-to-digital conversion circuit, and is used for determining whether the antenna receives an electromagnetic wave interference signal according to the acquisition signal, triggering the device to enter a monitoring mode when the antenna receives the electromagnetic wave interference signal, judging the electromagnetic interference power level according to the acquisition signal, generating an interference event according to a judging result, and storing the interference event into the memory.
2. An electromagnetic field monitoring device as defined in claim 1, further comprising:
the threshold comparison circuit is respectively connected with the control circuit and the detection circuits, and is used for comparing the threshold values of signals output by the detection circuits after detection and sending the comparison result to the control circuit;
the control circuit is further used for determining whether the antenna receives an electromagnetic wave interference signal according to the comparison result.
3. An electromagnetic field monitoring device as defined in claim 2, further comprising:
the communication interface circuit is respectively connected with the control circuit and the memory;
the control circuit is further used for sending corresponding data stored in the memory to external equipment through the communication interface circuit when an external reading instruction is received through the communication interface circuit.
4. An electromagnetic field monitoring device as defined in claim 3, further comprising:
the IO interface circuit is connected with the control circuit;
the control circuit is further configured to receive the external reading instruction and the external testing instruction through the IO interface circuit, trigger the device to enter a testing mode when receiving the external testing instruction, control the analog-to-digital conversion circuit to collect an external electromagnetic field in real time, and send an obtained collection signal to the external device through the communication interface circuit.
5. An electromagnetic field monitoring device as defined in claim 3, further comprising:
and the clock oscillation circuit is respectively connected with the control circuit, the memory and the communication interface circuit and is used for generating clock signals and respectively providing the clock signals to the control circuit, the memory and the communication interface circuit.
6. The electromagnetic field monitoring device of claim 2, wherein the electromagnetic field monitoring system further comprises:
and the power supply circuit is respectively connected with the analog-to-digital conversion circuit, the threshold comparison circuit, the control circuit and the memory and is used for respectively supplying power to the analog-to-digital conversion circuit, the threshold comparison circuit, the control circuit and the memory.
7. An electromagnetic field monitoring device as defined in claim 1, further comprising:
and the power-on reset circuit is connected with the analog-to-digital conversion circuit and is used for carrying out power-on reset control on the device through the analog-to-digital conversion circuit and monitoring the working voltage of the device.
8. An electromagnetic field monitoring device as defined in claim 3, further comprising:
and the signal isolation circuit is used for isolating interference signals introduced by the external equipment through the communication interface circuit.
9. The electromagnetic field monitoring device of claim 1, wherein the control circuit is configured to, when determining an electromagnetic interference power level based on the acquisition signal and generating an interference event based on the determination:
when the electromagnetic interference power is determined to be larger than a preset power threshold according to the acquired signals, a first type of interference event is generated, and an electricity stealing alarm signal is generated;
and generating a second type of interference event when the electromagnetic interference power is less than or equal to the preset power threshold value according to the acquired signals.
10. An electromagnetic field monitoring device as defined in claim 1, wherein the antenna is an external antenna or an internal antenna.
11. An electromagnetic sensor chip comprising an electromagnetic field monitoring device according to any one of claims 1-10.
12. An electronic device comprising the electromagnetic sensor chip according to claim 11.
13. An electromagnetic field monitoring method for an electromagnetic field monitoring device, the device comprising an antenna, a plurality of detection circuits, and an analog-to-digital conversion circuit, the method comprising:
receiving electromagnetic wave signals of a plurality of different frequency bands through the antenna, and detecting the electromagnetic wave signals of the different frequency bands through the detection circuits respectively;
analog-to-digital conversion is carried out on signals output after detection by the detection circuits, so as to obtain acquisition signals;
and determining whether the antenna receives an electromagnetic wave interference signal or not according to the acquisition signal, triggering the device to enter a monitoring mode when the antenna receives the electromagnetic wave interference signal, judging the electromagnetic interference power level according to the acquisition signal, generating an interference event according to a judging result, and storing the interference event.
14. The method of claim 13, wherein the apparatus further comprises a threshold comparison circuit, the method further comprising:
the threshold comparison circuit is used for performing threshold comparison on signals output by the detection circuits after detection to obtain comparison results;
and determining whether the antenna receives an electromagnetic wave interference signal according to the comparison result.
15. The method of claim 13, wherein determining the electromagnetic interference power level based on the acquired signal and generating an interference event based on the determination comprises:
if the electromagnetic interference power is determined to be larger than a preset power threshold according to the acquired signals, generating a first type of interference event and generating an electricity stealing alarm signal;
and if the electromagnetic interference power is less than or equal to the preset power threshold value according to the acquired signals, generating a second type of interference event.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311267118.6A CN117147980A (en) | 2023-09-27 | 2023-09-27 | Electromagnetic field monitoring device, electromagnetic field monitoring method, electromagnetic sensor chip and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311267118.6A CN117147980A (en) | 2023-09-27 | 2023-09-27 | Electromagnetic field monitoring device, electromagnetic field monitoring method, electromagnetic sensor chip and electronic equipment |
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| CN117147980A true CN117147980A (en) | 2023-12-01 |
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| CN202311267118.6A Pending CN117147980A (en) | 2023-09-27 | 2023-09-27 | Electromagnetic field monitoring device, electromagnetic field monitoring method, electromagnetic sensor chip and electronic equipment |
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